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-rw-r--r--lib/uthash/src/utarray.h252
-rw-r--r--lib/uthash/src/uthash.h1140
-rw-r--r--lib/uthash/src/utlist.h1076
-rw-r--r--lib/uthash/src/utringbuffer.h108
-rw-r--r--lib/uthash/src/utstack.h88
-rw-r--r--lib/uthash/src/utstring.h407
6 files changed, 3071 insertions, 0 deletions
diff --git a/lib/uthash/src/utarray.h b/lib/uthash/src/utarray.h
new file mode 100644
index 0000000..1fe8bc1
--- /dev/null
+++ b/lib/uthash/src/utarray.h
@@ -0,0 +1,252 @@
+/*
+Copyright (c) 2008-2022, Troy D. Hanson https://troydhanson.github.io/uthash/
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+/* a dynamic array implementation using macros
+ */
+#ifndef UTARRAY_H
+#define UTARRAY_H
+
+#define UTARRAY_VERSION 2.3.0
+
+#include <stddef.h> /* size_t */
+#include <string.h> /* memset, etc */
+#include <stdlib.h> /* exit */
+
+#ifdef __GNUC__
+#define UTARRAY_UNUSED __attribute__((__unused__))
+#else
+#define UTARRAY_UNUSED
+#endif
+
+#ifndef utarray_oom
+#define utarray_oom() exit(-1)
+#endif
+
+typedef void (ctor_f)(void *dst, const void *src);
+typedef void (dtor_f)(void *elt);
+typedef void (init_f)(void *elt);
+typedef struct {
+ size_t sz;
+ init_f *init;
+ ctor_f *copy;
+ dtor_f *dtor;
+} UT_icd;
+
+typedef struct {
+ unsigned i,n;/* i: index of next available slot, n: num slots */
+ UT_icd icd; /* initializer, copy and destructor functions */
+ char *d; /* n slots of size icd->sz*/
+} UT_array;
+
+#define utarray_init(a,_icd) do { \
+ memset(a,0,sizeof(UT_array)); \
+ (a)->icd = *(_icd); \
+} while(0)
+
+#define utarray_done(a) do { \
+ if ((a)->n) { \
+ if ((a)->icd.dtor) { \
+ unsigned _ut_i; \
+ for(_ut_i=0; _ut_i < (a)->i; _ut_i++) { \
+ (a)->icd.dtor(utarray_eltptr(a,_ut_i)); \
+ } \
+ } \
+ free((a)->d); \
+ } \
+ (a)->n=0; \
+} while(0)
+
+#define utarray_new(a,_icd) do { \
+ (a) = (UT_array*)malloc(sizeof(UT_array)); \
+ if ((a) == NULL) { \
+ utarray_oom(); \
+ } \
+ utarray_init(a,_icd); \
+} while(0)
+
+#define utarray_free(a) do { \
+ utarray_done(a); \
+ free(a); \
+} while(0)
+
+#define utarray_reserve(a,by) do { \
+ if (((a)->i+(by)) > (a)->n) { \
+ char *utarray_tmp; \
+ while (((a)->i+(by)) > (a)->n) { (a)->n = ((a)->n ? (2*(a)->n) : 8); } \
+ utarray_tmp=(char*)realloc((a)->d, (a)->n*(a)->icd.sz); \
+ if (utarray_tmp == NULL) { \
+ utarray_oom(); \
+ } \
+ (a)->d=utarray_tmp; \
+ } \
+} while(0)
+
+#define utarray_push_back(a,p) do { \
+ utarray_reserve(a,1); \
+ if ((a)->icd.copy) { (a)->icd.copy( _utarray_eltptr(a,(a)->i++), p); } \
+ else { memcpy(_utarray_eltptr(a,(a)->i++), p, (a)->icd.sz); }; \
+} while(0)
+
+#define utarray_pop_back(a) do { \
+ if ((a)->icd.dtor) { (a)->icd.dtor( _utarray_eltptr(a,--((a)->i))); } \
+ else { (a)->i--; } \
+} while(0)
+
+#define utarray_extend_back(a) do { \
+ utarray_reserve(a,1); \
+ if ((a)->icd.init) { (a)->icd.init(_utarray_eltptr(a,(a)->i)); } \
+ else { memset(_utarray_eltptr(a,(a)->i),0,(a)->icd.sz); } \
+ (a)->i++; \
+} while(0)
+
+#define utarray_len(a) ((a)->i)
+
+#define utarray_eltptr(a,j) (((j) < (a)->i) ? _utarray_eltptr(a,j) : NULL)
+#define _utarray_eltptr(a,j) ((void*)((a)->d + ((a)->icd.sz * (j))))
+
+#define utarray_insert(a,p,j) do { \
+ if ((j) > (a)->i) utarray_resize(a,j); \
+ utarray_reserve(a,1); \
+ if ((j) < (a)->i) { \
+ memmove( _utarray_eltptr(a,(j)+1), _utarray_eltptr(a,j), \
+ ((a)->i - (j))*((a)->icd.sz)); \
+ } \
+ if ((a)->icd.copy) { (a)->icd.copy( _utarray_eltptr(a,j), p); } \
+ else { memcpy(_utarray_eltptr(a,j), p, (a)->icd.sz); }; \
+ (a)->i++; \
+} while(0)
+
+#define utarray_inserta(a,w,j) do { \
+ if (utarray_len(w) == 0) break; \
+ if ((j) > (a)->i) utarray_resize(a,j); \
+ utarray_reserve(a,utarray_len(w)); \
+ if ((j) < (a)->i) { \
+ memmove(_utarray_eltptr(a,(j)+utarray_len(w)), \
+ _utarray_eltptr(a,j), \
+ ((a)->i - (j))*((a)->icd.sz)); \
+ } \
+ if ((a)->icd.copy) { \
+ unsigned _ut_i; \
+ for(_ut_i=0;_ut_i<(w)->i;_ut_i++) { \
+ (a)->icd.copy(_utarray_eltptr(a, (j) + _ut_i), _utarray_eltptr(w, _ut_i)); \
+ } \
+ } else { \
+ memcpy(_utarray_eltptr(a,j), _utarray_eltptr(w,0), \
+ utarray_len(w)*((a)->icd.sz)); \
+ } \
+ (a)->i += utarray_len(w); \
+} while(0)
+
+#define utarray_resize(dst,num) do { \
+ unsigned _ut_i; \
+ if ((dst)->i > (unsigned)(num)) { \
+ if ((dst)->icd.dtor) { \
+ for (_ut_i = (num); _ut_i < (dst)->i; ++_ut_i) { \
+ (dst)->icd.dtor(_utarray_eltptr(dst, _ut_i)); \
+ } \
+ } \
+ } else if ((dst)->i < (unsigned)(num)) { \
+ utarray_reserve(dst, (num) - (dst)->i); \
+ if ((dst)->icd.init) { \
+ for (_ut_i = (dst)->i; _ut_i < (unsigned)(num); ++_ut_i) { \
+ (dst)->icd.init(_utarray_eltptr(dst, _ut_i)); \
+ } \
+ } else { \
+ memset(_utarray_eltptr(dst, (dst)->i), 0, (dst)->icd.sz*((num) - (dst)->i)); \
+ } \
+ } \
+ (dst)->i = (num); \
+} while(0)
+
+#define utarray_concat(dst,src) do { \
+ utarray_inserta(dst, src, utarray_len(dst)); \
+} while(0)
+
+#define utarray_erase(a,pos,len) do { \
+ if ((a)->icd.dtor) { \
+ unsigned _ut_i; \
+ for (_ut_i = 0; _ut_i < (len); _ut_i++) { \
+ (a)->icd.dtor(utarray_eltptr(a, (pos) + _ut_i)); \
+ } \
+ } \
+ if ((a)->i > ((pos) + (len))) { \
+ memmove(_utarray_eltptr(a, pos), _utarray_eltptr(a, (pos) + (len)), \
+ ((a)->i - ((pos) + (len))) * (a)->icd.sz); \
+ } \
+ (a)->i -= (len); \
+} while(0)
+
+#define utarray_renew(a,u) do { \
+ if (a) utarray_clear(a); \
+ else utarray_new(a, u); \
+} while(0)
+
+#define utarray_clear(a) do { \
+ if ((a)->i > 0) { \
+ if ((a)->icd.dtor) { \
+ unsigned _ut_i; \
+ for(_ut_i=0; _ut_i < (a)->i; _ut_i++) { \
+ (a)->icd.dtor(_utarray_eltptr(a, _ut_i)); \
+ } \
+ } \
+ (a)->i = 0; \
+ } \
+} while(0)
+
+#define utarray_sort(a,cmp) do { \
+ qsort((a)->d, (a)->i, (a)->icd.sz, cmp); \
+} while(0)
+
+#define utarray_find(a,v,cmp) bsearch((v),(a)->d,(a)->i,(a)->icd.sz,cmp)
+
+#define utarray_front(a) (((a)->i) ? (_utarray_eltptr(a,0)) : NULL)
+#define utarray_next(a,e) (((e)==NULL) ? utarray_front(a) : (((a)->i != utarray_eltidx(a,e)+1) ? _utarray_eltptr(a,utarray_eltidx(a,e)+1) : NULL))
+#define utarray_prev(a,e) (((e)==NULL) ? utarray_back(a) : ((utarray_eltidx(a,e) != 0) ? _utarray_eltptr(a,utarray_eltidx(a,e)-1) : NULL))
+#define utarray_back(a) (((a)->i) ? (_utarray_eltptr(a,(a)->i-1)) : NULL)
+#define utarray_eltidx(a,e) (((char*)(e) - (a)->d) / (a)->icd.sz)
+
+/* last we pre-define a few icd for common utarrays of ints and strings */
+static void utarray_str_cpy(void *dst, const void *src) {
+ char *const *srcc = (char *const *)src;
+ char **dstc = (char**)dst;
+ if (*srcc == NULL) {
+ *dstc = NULL;
+ } else {
+ *dstc = (char*)malloc(strlen(*srcc) + 1);
+ if (*dstc == NULL) {
+ utarray_oom();
+ } else {
+ strcpy(*dstc, *srcc);
+ }
+ }
+}
+static void utarray_str_dtor(void *elt) {
+ char **eltc = (char**)elt;
+ if (*eltc != NULL) free(*eltc);
+}
+static const UT_icd ut_str_icd UTARRAY_UNUSED = {sizeof(char*),NULL,utarray_str_cpy,utarray_str_dtor};
+static const UT_icd ut_int_icd UTARRAY_UNUSED = {sizeof(int),NULL,NULL,NULL};
+static const UT_icd ut_ptr_icd UTARRAY_UNUSED = {sizeof(void*),NULL,NULL,NULL};
+
+
+#endif /* UTARRAY_H */
diff --git a/lib/uthash/src/uthash.h b/lib/uthash/src/uthash.h
new file mode 100644
index 0000000..68693bf
--- /dev/null
+++ b/lib/uthash/src/uthash.h
@@ -0,0 +1,1140 @@
+/*
+Copyright (c) 2003-2022, Troy D. Hanson https://troydhanson.github.io/uthash/
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef UTHASH_H
+#define UTHASH_H
+
+#define UTHASH_VERSION 2.3.0
+
+#include <string.h> /* memcmp, memset, strlen */
+#include <stddef.h> /* ptrdiff_t */
+#include <stdlib.h> /* exit */
+
+#if defined(HASH_DEFINE_OWN_STDINT) && HASH_DEFINE_OWN_STDINT
+/* This codepath is provided for backward compatibility, but I plan to remove it. */
+#warning "HASH_DEFINE_OWN_STDINT is deprecated; please use HASH_NO_STDINT instead"
+typedef unsigned int uint32_t;
+typedef unsigned char uint8_t;
+#elif defined(HASH_NO_STDINT) && HASH_NO_STDINT
+#else
+#include <stdint.h> /* uint8_t, uint32_t */
+#endif
+
+/* These macros use decltype or the earlier __typeof GNU extension.
+ As decltype is only available in newer compilers (VS2010 or gcc 4.3+
+ when compiling c++ source) this code uses whatever method is needed
+ or, for VS2008 where neither is available, uses casting workarounds. */
+#if !defined(DECLTYPE) && !defined(NO_DECLTYPE)
+#if defined(_MSC_VER) /* MS compiler */
+#if _MSC_VER >= 1600 && defined(__cplusplus) /* VS2010 or newer in C++ mode */
+#define DECLTYPE(x) (decltype(x))
+#else /* VS2008 or older (or VS2010 in C mode) */
+#define NO_DECLTYPE
+#endif
+#elif defined(__MCST__) /* Elbrus C Compiler */
+#define DECLTYPE(x) (__typeof(x))
+#elif defined(__BORLANDC__) || defined(__ICCARM__) || defined(__LCC__) || defined(__WATCOMC__)
+#define NO_DECLTYPE
+#else /* GNU, Sun and other compilers */
+#define DECLTYPE(x) (__typeof(x))
+#endif
+#endif
+
+#ifdef NO_DECLTYPE
+#define DECLTYPE(x)
+#define DECLTYPE_ASSIGN(dst,src) \
+do { \
+ char **_da_dst = (char**)(&(dst)); \
+ *_da_dst = (char*)(src); \
+} while (0)
+#else
+#define DECLTYPE_ASSIGN(dst,src) \
+do { \
+ (dst) = DECLTYPE(dst)(src); \
+} while (0)
+#endif
+
+#ifndef uthash_malloc
+#define uthash_malloc(sz) malloc(sz) /* malloc fcn */
+#endif
+#ifndef uthash_free
+#define uthash_free(ptr,sz) free(ptr) /* free fcn */
+#endif
+#ifndef uthash_bzero
+#define uthash_bzero(a,n) memset(a,'\0',n)
+#endif
+#ifndef uthash_strlen
+#define uthash_strlen(s) strlen(s)
+#endif
+
+#ifndef HASH_FUNCTION
+#define HASH_FUNCTION(keyptr,keylen,hashv) HASH_JEN(keyptr, keylen, hashv)
+#endif
+
+#ifndef HASH_KEYCMP
+#define HASH_KEYCMP(a,b,n) memcmp(a,b,n)
+#endif
+
+#ifndef uthash_noexpand_fyi
+#define uthash_noexpand_fyi(tbl) /* can be defined to log noexpand */
+#endif
+#ifndef uthash_expand_fyi
+#define uthash_expand_fyi(tbl) /* can be defined to log expands */
+#endif
+
+#ifndef HASH_NONFATAL_OOM
+#define HASH_NONFATAL_OOM 0
+#endif
+
+#if HASH_NONFATAL_OOM
+/* malloc failures can be recovered from */
+
+#ifndef uthash_nonfatal_oom
+#define uthash_nonfatal_oom(obj) do {} while (0) /* non-fatal OOM error */
+#endif
+
+#define HASH_RECORD_OOM(oomed) do { (oomed) = 1; } while (0)
+#define IF_HASH_NONFATAL_OOM(x) x
+
+#else
+/* malloc failures result in lost memory, hash tables are unusable */
+
+#ifndef uthash_fatal
+#define uthash_fatal(msg) exit(-1) /* fatal OOM error */
+#endif
+
+#define HASH_RECORD_OOM(oomed) uthash_fatal("out of memory")
+#define IF_HASH_NONFATAL_OOM(x)
+
+#endif
+
+/* initial number of buckets */
+#define HASH_INITIAL_NUM_BUCKETS 32U /* initial number of buckets */
+#define HASH_INITIAL_NUM_BUCKETS_LOG2 5U /* lg2 of initial number of buckets */
+#define HASH_BKT_CAPACITY_THRESH 10U /* expand when bucket count reaches */
+
+/* calculate the element whose hash handle address is hhp */
+#define ELMT_FROM_HH(tbl,hhp) ((void*)(((char*)(hhp)) - ((tbl)->hho)))
+/* calculate the hash handle from element address elp */
+#define HH_FROM_ELMT(tbl,elp) ((UT_hash_handle*)(void*)(((char*)(elp)) + ((tbl)->hho)))
+
+#define HASH_ROLLBACK_BKT(hh, head, itemptrhh) \
+do { \
+ struct UT_hash_handle *_hd_hh_item = (itemptrhh); \
+ unsigned _hd_bkt; \
+ HASH_TO_BKT(_hd_hh_item->hashv, (head)->hh.tbl->num_buckets, _hd_bkt); \
+ (head)->hh.tbl->buckets[_hd_bkt].count++; \
+ _hd_hh_item->hh_next = NULL; \
+ _hd_hh_item->hh_prev = NULL; \
+} while (0)
+
+#define HASH_VALUE(keyptr,keylen,hashv) \
+do { \
+ HASH_FUNCTION(keyptr, keylen, hashv); \
+} while (0)
+
+#define HASH_FIND_BYHASHVALUE(hh,head,keyptr,keylen,hashval,out) \
+do { \
+ (out) = NULL; \
+ if (head) { \
+ unsigned _hf_bkt; \
+ HASH_TO_BKT(hashval, (head)->hh.tbl->num_buckets, _hf_bkt); \
+ if (HASH_BLOOM_TEST((head)->hh.tbl, hashval) != 0) { \
+ HASH_FIND_IN_BKT((head)->hh.tbl, hh, (head)->hh.tbl->buckets[ _hf_bkt ], keyptr, keylen, hashval, out); \
+ } \
+ } \
+} while (0)
+
+#define HASH_FIND(hh,head,keyptr,keylen,out) \
+do { \
+ (out) = NULL; \
+ if (head) { \
+ unsigned _hf_hashv; \
+ HASH_VALUE(keyptr, keylen, _hf_hashv); \
+ HASH_FIND_BYHASHVALUE(hh, head, keyptr, keylen, _hf_hashv, out); \
+ } \
+} while (0)
+
+#ifdef HASH_BLOOM
+#define HASH_BLOOM_BITLEN (1UL << HASH_BLOOM)
+#define HASH_BLOOM_BYTELEN (HASH_BLOOM_BITLEN/8UL) + (((HASH_BLOOM_BITLEN%8UL)!=0UL) ? 1UL : 0UL)
+#define HASH_BLOOM_MAKE(tbl,oomed) \
+do { \
+ (tbl)->bloom_nbits = HASH_BLOOM; \
+ (tbl)->bloom_bv = (uint8_t*)uthash_malloc(HASH_BLOOM_BYTELEN); \
+ if (!(tbl)->bloom_bv) { \
+ HASH_RECORD_OOM(oomed); \
+ } else { \
+ uthash_bzero((tbl)->bloom_bv, HASH_BLOOM_BYTELEN); \
+ (tbl)->bloom_sig = HASH_BLOOM_SIGNATURE; \
+ } \
+} while (0)
+
+#define HASH_BLOOM_FREE(tbl) \
+do { \
+ uthash_free((tbl)->bloom_bv, HASH_BLOOM_BYTELEN); \
+} while (0)
+
+#define HASH_BLOOM_BITSET(bv,idx) (bv[(idx)/8U] |= (1U << ((idx)%8U)))
+#define HASH_BLOOM_BITTEST(bv,idx) (bv[(idx)/8U] & (1U << ((idx)%8U)))
+
+#define HASH_BLOOM_ADD(tbl,hashv) \
+ HASH_BLOOM_BITSET((tbl)->bloom_bv, ((hashv) & (uint32_t)((1UL << (tbl)->bloom_nbits) - 1U)))
+
+#define HASH_BLOOM_TEST(tbl,hashv) \
+ HASH_BLOOM_BITTEST((tbl)->bloom_bv, ((hashv) & (uint32_t)((1UL << (tbl)->bloom_nbits) - 1U)))
+
+#else
+#define HASH_BLOOM_MAKE(tbl,oomed)
+#define HASH_BLOOM_FREE(tbl)
+#define HASH_BLOOM_ADD(tbl,hashv)
+#define HASH_BLOOM_TEST(tbl,hashv) (1)
+#define HASH_BLOOM_BYTELEN 0U
+#endif
+
+#define HASH_MAKE_TABLE(hh,head,oomed) \
+do { \
+ (head)->hh.tbl = (UT_hash_table*)uthash_malloc(sizeof(UT_hash_table)); \
+ if (!(head)->hh.tbl) { \
+ HASH_RECORD_OOM(oomed); \
+ } else { \
+ uthash_bzero((head)->hh.tbl, sizeof(UT_hash_table)); \
+ (head)->hh.tbl->tail = &((head)->hh); \
+ (head)->hh.tbl->num_buckets = HASH_INITIAL_NUM_BUCKETS; \
+ (head)->hh.tbl->log2_num_buckets = HASH_INITIAL_NUM_BUCKETS_LOG2; \
+ (head)->hh.tbl->hho = (char*)(&(head)->hh) - (char*)(head); \
+ (head)->hh.tbl->buckets = (UT_hash_bucket*)uthash_malloc( \
+ HASH_INITIAL_NUM_BUCKETS * sizeof(struct UT_hash_bucket)); \
+ (head)->hh.tbl->signature = HASH_SIGNATURE; \
+ if (!(head)->hh.tbl->buckets) { \
+ HASH_RECORD_OOM(oomed); \
+ uthash_free((head)->hh.tbl, sizeof(UT_hash_table)); \
+ } else { \
+ uthash_bzero((head)->hh.tbl->buckets, \
+ HASH_INITIAL_NUM_BUCKETS * sizeof(struct UT_hash_bucket)); \
+ HASH_BLOOM_MAKE((head)->hh.tbl, oomed); \
+ IF_HASH_NONFATAL_OOM( \
+ if (oomed) { \
+ uthash_free((head)->hh.tbl->buckets, \
+ HASH_INITIAL_NUM_BUCKETS*sizeof(struct UT_hash_bucket)); \
+ uthash_free((head)->hh.tbl, sizeof(UT_hash_table)); \
+ } \
+ ) \
+ } \
+ } \
+} while (0)
+
+#define HASH_REPLACE_BYHASHVALUE_INORDER(hh,head,fieldname,keylen_in,hashval,add,replaced,cmpfcn) \
+do { \
+ (replaced) = NULL; \
+ HASH_FIND_BYHASHVALUE(hh, head, &((add)->fieldname), keylen_in, hashval, replaced); \
+ if (replaced) { \
+ HASH_DELETE(hh, head, replaced); \
+ } \
+ HASH_ADD_KEYPTR_BYHASHVALUE_INORDER(hh, head, &((add)->fieldname), keylen_in, hashval, add, cmpfcn); \
+} while (0)
+
+#define HASH_REPLACE_BYHASHVALUE(hh,head,fieldname,keylen_in,hashval,add,replaced) \
+do { \
+ (replaced) = NULL; \
+ HASH_FIND_BYHASHVALUE(hh, head, &((add)->fieldname), keylen_in, hashval, replaced); \
+ if (replaced) { \
+ HASH_DELETE(hh, head, replaced); \
+ } \
+ HASH_ADD_KEYPTR_BYHASHVALUE(hh, head, &((add)->fieldname), keylen_in, hashval, add); \
+} while (0)
+
+#define HASH_REPLACE(hh,head,fieldname,keylen_in,add,replaced) \
+do { \
+ unsigned _hr_hashv; \
+ HASH_VALUE(&((add)->fieldname), keylen_in, _hr_hashv); \
+ HASH_REPLACE_BYHASHVALUE(hh, head, fieldname, keylen_in, _hr_hashv, add, replaced); \
+} while (0)
+
+#define HASH_REPLACE_INORDER(hh,head,fieldname,keylen_in,add,replaced,cmpfcn) \
+do { \
+ unsigned _hr_hashv; \
+ HASH_VALUE(&((add)->fieldname), keylen_in, _hr_hashv); \
+ HASH_REPLACE_BYHASHVALUE_INORDER(hh, head, fieldname, keylen_in, _hr_hashv, add, replaced, cmpfcn); \
+} while (0)
+
+#define HASH_APPEND_LIST(hh, head, add) \
+do { \
+ (add)->hh.next = NULL; \
+ (add)->hh.prev = ELMT_FROM_HH((head)->hh.tbl, (head)->hh.tbl->tail); \
+ (head)->hh.tbl->tail->next = (add); \
+ (head)->hh.tbl->tail = &((add)->hh); \
+} while (0)
+
+#define HASH_AKBI_INNER_LOOP(hh,head,add,cmpfcn) \
+do { \
+ do { \
+ if (cmpfcn(DECLTYPE(head)(_hs_iter), add) > 0) { \
+ break; \
+ } \
+ } while ((_hs_iter = HH_FROM_ELMT((head)->hh.tbl, _hs_iter)->next)); \
+} while (0)
+
+#ifdef NO_DECLTYPE
+#undef HASH_AKBI_INNER_LOOP
+#define HASH_AKBI_INNER_LOOP(hh,head,add,cmpfcn) \
+do { \
+ char *_hs_saved_head = (char*)(head); \
+ do { \
+ DECLTYPE_ASSIGN(head, _hs_iter); \
+ if (cmpfcn(head, add) > 0) { \
+ DECLTYPE_ASSIGN(head, _hs_saved_head); \
+ break; \
+ } \
+ DECLTYPE_ASSIGN(head, _hs_saved_head); \
+ } while ((_hs_iter = HH_FROM_ELMT((head)->hh.tbl, _hs_iter)->next)); \
+} while (0)
+#endif
+
+#if HASH_NONFATAL_OOM
+
+#define HASH_ADD_TO_TABLE(hh,head,keyptr,keylen_in,hashval,add,oomed) \
+do { \
+ if (!(oomed)) { \
+ unsigned _ha_bkt; \
+ (head)->hh.tbl->num_items++; \
+ HASH_TO_BKT(hashval, (head)->hh.tbl->num_buckets, _ha_bkt); \
+ HASH_ADD_TO_BKT((head)->hh.tbl->buckets[_ha_bkt], hh, &(add)->hh, oomed); \
+ if (oomed) { \
+ HASH_ROLLBACK_BKT(hh, head, &(add)->hh); \
+ HASH_DELETE_HH(hh, head, &(add)->hh); \
+ (add)->hh.tbl = NULL; \
+ uthash_nonfatal_oom(add); \
+ } else { \
+ HASH_BLOOM_ADD((head)->hh.tbl, hashval); \
+ HASH_EMIT_KEY(hh, head, keyptr, keylen_in); \
+ } \
+ } else { \
+ (add)->hh.tbl = NULL; \
+ uthash_nonfatal_oom(add); \
+ } \
+} while (0)
+
+#else
+
+#define HASH_ADD_TO_TABLE(hh,head,keyptr,keylen_in,hashval,add,oomed) \
+do { \
+ unsigned _ha_bkt; \
+ (head)->hh.tbl->num_items++; \
+ HASH_TO_BKT(hashval, (head)->hh.tbl->num_buckets, _ha_bkt); \
+ HASH_ADD_TO_BKT((head)->hh.tbl->buckets[_ha_bkt], hh, &(add)->hh, oomed); \
+ HASH_BLOOM_ADD((head)->hh.tbl, hashval); \
+ HASH_EMIT_KEY(hh, head, keyptr, keylen_in); \
+} while (0)
+
+#endif
+
+
+#define HASH_ADD_KEYPTR_BYHASHVALUE_INORDER(hh,head,keyptr,keylen_in,hashval,add,cmpfcn) \
+do { \
+ IF_HASH_NONFATAL_OOM( int _ha_oomed = 0; ) \
+ (add)->hh.hashv = (hashval); \
+ (add)->hh.key = (char*) (keyptr); \
+ (add)->hh.keylen = (unsigned) (keylen_in); \
+ if (!(head)) { \
+ (add)->hh.next = NULL; \
+ (add)->hh.prev = NULL; \
+ HASH_MAKE_TABLE(hh, add, _ha_oomed); \
+ IF_HASH_NONFATAL_OOM( if (!_ha_oomed) { ) \
+ (head) = (add); \
+ IF_HASH_NONFATAL_OOM( } ) \
+ } else { \
+ void *_hs_iter = (head); \
+ (add)->hh.tbl = (head)->hh.tbl; \
+ HASH_AKBI_INNER_LOOP(hh, head, add, cmpfcn); \
+ if (_hs_iter) { \
+ (add)->hh.next = _hs_iter; \
+ if (((add)->hh.prev = HH_FROM_ELMT((head)->hh.tbl, _hs_iter)->prev)) { \
+ HH_FROM_ELMT((head)->hh.tbl, (add)->hh.prev)->next = (add); \
+ } else { \
+ (head) = (add); \
+ } \
+ HH_FROM_ELMT((head)->hh.tbl, _hs_iter)->prev = (add); \
+ } else { \
+ HASH_APPEND_LIST(hh, head, add); \
+ } \
+ } \
+ HASH_ADD_TO_TABLE(hh, head, keyptr, keylen_in, hashval, add, _ha_oomed); \
+ HASH_FSCK(hh, head, "HASH_ADD_KEYPTR_BYHASHVALUE_INORDER"); \
+} while (0)
+
+#define HASH_ADD_KEYPTR_INORDER(hh,head,keyptr,keylen_in,add,cmpfcn) \
+do { \
+ unsigned _hs_hashv; \
+ HASH_VALUE(keyptr, keylen_in, _hs_hashv); \
+ HASH_ADD_KEYPTR_BYHASHVALUE_INORDER(hh, head, keyptr, keylen_in, _hs_hashv, add, cmpfcn); \
+} while (0)
+
+#define HASH_ADD_BYHASHVALUE_INORDER(hh,head,fieldname,keylen_in,hashval,add,cmpfcn) \
+ HASH_ADD_KEYPTR_BYHASHVALUE_INORDER(hh, head, &((add)->fieldname), keylen_in, hashval, add, cmpfcn)
+
+#define HASH_ADD_INORDER(hh,head,fieldname,keylen_in,add,cmpfcn) \
+ HASH_ADD_KEYPTR_INORDER(hh, head, &((add)->fieldname), keylen_in, add, cmpfcn)
+
+#define HASH_ADD_KEYPTR_BYHASHVALUE(hh,head,keyptr,keylen_in,hashval,add) \
+do { \
+ IF_HASH_NONFATAL_OOM( int _ha_oomed = 0; ) \
+ (add)->hh.hashv = (hashval); \
+ (add)->hh.key = (const void*) (keyptr); \
+ (add)->hh.keylen = (unsigned) (keylen_in); \
+ if (!(head)) { \
+ (add)->hh.next = NULL; \
+ (add)->hh.prev = NULL; \
+ HASH_MAKE_TABLE(hh, add, _ha_oomed); \
+ IF_HASH_NONFATAL_OOM( if (!_ha_oomed) { ) \
+ (head) = (add); \
+ IF_HASH_NONFATAL_OOM( } ) \
+ } else { \
+ (add)->hh.tbl = (head)->hh.tbl; \
+ HASH_APPEND_LIST(hh, head, add); \
+ } \
+ HASH_ADD_TO_TABLE(hh, head, keyptr, keylen_in, hashval, add, _ha_oomed); \
+ HASH_FSCK(hh, head, "HASH_ADD_KEYPTR_BYHASHVALUE"); \
+} while (0)
+
+#define HASH_ADD_KEYPTR(hh,head,keyptr,keylen_in,add) \
+do { \
+ unsigned _ha_hashv; \
+ HASH_VALUE(keyptr, keylen_in, _ha_hashv); \
+ HASH_ADD_KEYPTR_BYHASHVALUE(hh, head, keyptr, keylen_in, _ha_hashv, add); \
+} while (0)
+
+#define HASH_ADD_BYHASHVALUE(hh,head,fieldname,keylen_in,hashval,add) \
+ HASH_ADD_KEYPTR_BYHASHVALUE(hh, head, &((add)->fieldname), keylen_in, hashval, add)
+
+#define HASH_ADD(hh,head,fieldname,keylen_in,add) \
+ HASH_ADD_KEYPTR(hh, head, &((add)->fieldname), keylen_in, add)
+
+#define HASH_TO_BKT(hashv,num_bkts,bkt) \
+do { \
+ bkt = ((hashv) & ((num_bkts) - 1U)); \
+} while (0)
+
+/* delete "delptr" from the hash table.
+ * "the usual" patch-up process for the app-order doubly-linked-list.
+ * The use of _hd_hh_del below deserves special explanation.
+ * These used to be expressed using (delptr) but that led to a bug
+ * if someone used the same symbol for the head and deletee, like
+ * HASH_DELETE(hh,users,users);
+ * We want that to work, but by changing the head (users) below
+ * we were forfeiting our ability to further refer to the deletee (users)
+ * in the patch-up process. Solution: use scratch space to
+ * copy the deletee pointer, then the latter references are via that
+ * scratch pointer rather than through the repointed (users) symbol.
+ */
+#define HASH_DELETE(hh,head,delptr) \
+ HASH_DELETE_HH(hh, head, &(delptr)->hh)
+
+#define HASH_DELETE_HH(hh,head,delptrhh) \
+do { \
+ const struct UT_hash_handle *_hd_hh_del = (delptrhh); \
+ if ((_hd_hh_del->prev == NULL) && (_hd_hh_del->next == NULL)) { \
+ HASH_BLOOM_FREE((head)->hh.tbl); \
+ uthash_free((head)->hh.tbl->buckets, \
+ (head)->hh.tbl->num_buckets * sizeof(struct UT_hash_bucket)); \
+ uthash_free((head)->hh.tbl, sizeof(UT_hash_table)); \
+ (head) = NULL; \
+ } else { \
+ unsigned _hd_bkt; \
+ if (_hd_hh_del == (head)->hh.tbl->tail) { \
+ (head)->hh.tbl->tail = HH_FROM_ELMT((head)->hh.tbl, _hd_hh_del->prev); \
+ } \
+ if (_hd_hh_del->prev != NULL) { \
+ HH_FROM_ELMT((head)->hh.tbl, _hd_hh_del->prev)->next = _hd_hh_del->next; \
+ } else { \
+ DECLTYPE_ASSIGN(head, _hd_hh_del->next); \
+ } \
+ if (_hd_hh_del->next != NULL) { \
+ HH_FROM_ELMT((head)->hh.tbl, _hd_hh_del->next)->prev = _hd_hh_del->prev; \
+ } \
+ HASH_TO_BKT(_hd_hh_del->hashv, (head)->hh.tbl->num_buckets, _hd_bkt); \
+ HASH_DEL_IN_BKT((head)->hh.tbl->buckets[_hd_bkt], _hd_hh_del); \
+ (head)->hh.tbl->num_items--; \
+ } \
+ HASH_FSCK(hh, head, "HASH_DELETE_HH"); \
+} while (0)
+
+/* convenience forms of HASH_FIND/HASH_ADD/HASH_DEL */
+#define HASH_FIND_STR(head,findstr,out) \
+do { \
+ unsigned _uthash_hfstr_keylen = (unsigned)uthash_strlen(findstr); \
+ HASH_FIND(hh, head, findstr, _uthash_hfstr_keylen, out); \
+} while (0)
+#define HASH_ADD_STR(head,strfield,add) \
+do { \
+ unsigned _uthash_hastr_keylen = (unsigned)uthash_strlen((add)->strfield); \
+ HASH_ADD(hh, head, strfield[0], _uthash_hastr_keylen, add); \
+} while (0)
+#define HASH_REPLACE_STR(head,strfield,add,replaced) \
+do { \
+ unsigned _uthash_hrstr_keylen = (unsigned)uthash_strlen((add)->strfield); \
+ HASH_REPLACE(hh, head, strfield[0], _uthash_hrstr_keylen, add, replaced); \
+} while (0)
+#define HASH_FIND_INT(head,findint,out) \
+ HASH_FIND(hh,head,findint,sizeof(int),out)
+#define HASH_ADD_INT(head,intfield,add) \
+ HASH_ADD(hh,head,intfield,sizeof(int),add)
+#define HASH_REPLACE_INT(head,intfield,add,replaced) \
+ HASH_REPLACE(hh,head,intfield,sizeof(int),add,replaced)
+#define HASH_FIND_PTR(head,findptr,out) \
+ HASH_FIND(hh,head,findptr,sizeof(void *),out)
+#define HASH_ADD_PTR(head,ptrfield,add) \
+ HASH_ADD(hh,head,ptrfield,sizeof(void *),add)
+#define HASH_REPLACE_PTR(head,ptrfield,add,replaced) \
+ HASH_REPLACE(hh,head,ptrfield,sizeof(void *),add,replaced)
+#define HASH_DEL(head,delptr) \
+ HASH_DELETE(hh,head,delptr)
+
+/* HASH_FSCK checks hash integrity on every add/delete when HASH_DEBUG is defined.
+ * This is for uthash developer only; it compiles away if HASH_DEBUG isn't defined.
+ */
+#ifdef HASH_DEBUG
+#include <stdio.h> /* fprintf, stderr */
+#define HASH_OOPS(...) do { fprintf(stderr, __VA_ARGS__); exit(-1); } while (0)
+#define HASH_FSCK(hh,head,where) \
+do { \
+ struct UT_hash_handle *_thh; \
+ if (head) { \
+ unsigned _bkt_i; \
+ unsigned _count = 0; \
+ char *_prev; \
+ for (_bkt_i = 0; _bkt_i < (head)->hh.tbl->num_buckets; ++_bkt_i) { \
+ unsigned _bkt_count = 0; \
+ _thh = (head)->hh.tbl->buckets[_bkt_i].hh_head; \
+ _prev = NULL; \
+ while (_thh) { \
+ if (_prev != (char*)(_thh->hh_prev)) { \
+ HASH_OOPS("%s: invalid hh_prev %p, actual %p\n", \
+ (where), (void*)_thh->hh_prev, (void*)_prev); \
+ } \
+ _bkt_count++; \
+ _prev = (char*)(_thh); \
+ _thh = _thh->hh_next; \
+ } \
+ _count += _bkt_count; \
+ if ((head)->hh.tbl->buckets[_bkt_i].count != _bkt_count) { \
+ HASH_OOPS("%s: invalid bucket count %u, actual %u\n", \
+ (where), (head)->hh.tbl->buckets[_bkt_i].count, _bkt_count); \
+ } \
+ } \
+ if (_count != (head)->hh.tbl->num_items) { \
+ HASH_OOPS("%s: invalid hh item count %u, actual %u\n", \
+ (where), (head)->hh.tbl->num_items, _count); \
+ } \
+ _count = 0; \
+ _prev = NULL; \
+ _thh = &(head)->hh; \
+ while (_thh) { \
+ _count++; \
+ if (_prev != (char*)_thh->prev) { \
+ HASH_OOPS("%s: invalid prev %p, actual %p\n", \
+ (where), (void*)_thh->prev, (void*)_prev); \
+ } \
+ _prev = (char*)ELMT_FROM_HH((head)->hh.tbl, _thh); \
+ _thh = (_thh->next ? HH_FROM_ELMT((head)->hh.tbl, _thh->next) : NULL); \
+ } \
+ if (_count != (head)->hh.tbl->num_items) { \
+ HASH_OOPS("%s: invalid app item count %u, actual %u\n", \
+ (where), (head)->hh.tbl->num_items, _count); \
+ } \
+ } \
+} while (0)
+#else
+#define HASH_FSCK(hh,head,where)
+#endif
+
+/* When compiled with -DHASH_EMIT_KEYS, length-prefixed keys are emitted to
+ * the descriptor to which this macro is defined for tuning the hash function.
+ * The app can #include <unistd.h> to get the prototype for write(2). */
+#ifdef HASH_EMIT_KEYS
+#define HASH_EMIT_KEY(hh,head,keyptr,fieldlen) \
+do { \
+ unsigned _klen = fieldlen; \
+ write(HASH_EMIT_KEYS, &_klen, sizeof(_klen)); \
+ write(HASH_EMIT_KEYS, keyptr, (unsigned long)fieldlen); \
+} while (0)
+#else
+#define HASH_EMIT_KEY(hh,head,keyptr,fieldlen)
+#endif
+
+/* The Bernstein hash function, used in Perl prior to v5.6. Note (x<<5+x)=x*33. */
+#define HASH_BER(key,keylen,hashv) \
+do { \
+ unsigned _hb_keylen = (unsigned)keylen; \
+ const unsigned char *_hb_key = (const unsigned char*)(key); \
+ (hashv) = 0; \
+ while (_hb_keylen-- != 0U) { \
+ (hashv) = (((hashv) << 5) + (hashv)) + *_hb_key++; \
+ } \
+} while (0)
+
+
+/* SAX/FNV/OAT/JEN hash functions are macro variants of those listed at
+ * http://eternallyconfuzzled.com/tuts/algorithms/jsw_tut_hashing.aspx
+ * (archive link: https://archive.is/Ivcan )
+ */
+#define HASH_SAX(key,keylen,hashv) \
+do { \
+ unsigned _sx_i; \
+ const unsigned char *_hs_key = (const unsigned char*)(key); \
+ hashv = 0; \
+ for (_sx_i=0; _sx_i < keylen; _sx_i++) { \
+ hashv ^= (hashv << 5) + (hashv >> 2) + _hs_key[_sx_i]; \
+ } \
+} while (0)
+/* FNV-1a variation */
+#define HASH_FNV(key,keylen,hashv) \
+do { \
+ unsigned _fn_i; \
+ const unsigned char *_hf_key = (const unsigned char*)(key); \
+ (hashv) = 2166136261U; \
+ for (_fn_i=0; _fn_i < keylen; _fn_i++) { \
+ hashv = hashv ^ _hf_key[_fn_i]; \
+ hashv = hashv * 16777619U; \
+ } \
+} while (0)
+
+#define HASH_OAT(key,keylen,hashv) \
+do { \
+ unsigned _ho_i; \
+ const unsigned char *_ho_key=(const unsigned char*)(key); \
+ hashv = 0; \
+ for(_ho_i=0; _ho_i < keylen; _ho_i++) { \
+ hashv += _ho_key[_ho_i]; \
+ hashv += (hashv << 10); \
+ hashv ^= (hashv >> 6); \
+ } \
+ hashv += (hashv << 3); \
+ hashv ^= (hashv >> 11); \
+ hashv += (hashv << 15); \
+} while (0)
+
+#define HASH_JEN_MIX(a,b,c) \
+do { \
+ a -= b; a -= c; a ^= ( c >> 13 ); \
+ b -= c; b -= a; b ^= ( a << 8 ); \
+ c -= a; c -= b; c ^= ( b >> 13 ); \
+ a -= b; a -= c; a ^= ( c >> 12 ); \
+ b -= c; b -= a; b ^= ( a << 16 ); \
+ c -= a; c -= b; c ^= ( b >> 5 ); \
+ a -= b; a -= c; a ^= ( c >> 3 ); \
+ b -= c; b -= a; b ^= ( a << 10 ); \
+ c -= a; c -= b; c ^= ( b >> 15 ); \
+} while (0)
+
+#define HASH_JEN(key,keylen,hashv) \
+do { \
+ unsigned _hj_i,_hj_j,_hj_k; \
+ unsigned const char *_hj_key=(unsigned const char*)(key); \
+ hashv = 0xfeedbeefu; \
+ _hj_i = _hj_j = 0x9e3779b9u; \
+ _hj_k = (unsigned)(keylen); \
+ while (_hj_k >= 12U) { \
+ _hj_i += (_hj_key[0] + ( (unsigned)_hj_key[1] << 8 ) \
+ + ( (unsigned)_hj_key[2] << 16 ) \
+ + ( (unsigned)_hj_key[3] << 24 ) ); \
+ _hj_j += (_hj_key[4] + ( (unsigned)_hj_key[5] << 8 ) \
+ + ( (unsigned)_hj_key[6] << 16 ) \
+ + ( (unsigned)_hj_key[7] << 24 ) ); \
+ hashv += (_hj_key[8] + ( (unsigned)_hj_key[9] << 8 ) \
+ + ( (unsigned)_hj_key[10] << 16 ) \
+ + ( (unsigned)_hj_key[11] << 24 ) ); \
+ \
+ HASH_JEN_MIX(_hj_i, _hj_j, hashv); \
+ \
+ _hj_key += 12; \
+ _hj_k -= 12U; \
+ } \
+ hashv += (unsigned)(keylen); \
+ switch ( _hj_k ) { \
+ case 11: hashv += ( (unsigned)_hj_key[10] << 24 ); /* FALLTHROUGH */ \
+ case 10: hashv += ( (unsigned)_hj_key[9] << 16 ); /* FALLTHROUGH */ \
+ case 9: hashv += ( (unsigned)_hj_key[8] << 8 ); /* FALLTHROUGH */ \
+ case 8: _hj_j += ( (unsigned)_hj_key[7] << 24 ); /* FALLTHROUGH */ \
+ case 7: _hj_j += ( (unsigned)_hj_key[6] << 16 ); /* FALLTHROUGH */ \
+ case 6: _hj_j += ( (unsigned)_hj_key[5] << 8 ); /* FALLTHROUGH */ \
+ case 5: _hj_j += _hj_key[4]; /* FALLTHROUGH */ \
+ case 4: _hj_i += ( (unsigned)_hj_key[3] << 24 ); /* FALLTHROUGH */ \
+ case 3: _hj_i += ( (unsigned)_hj_key[2] << 16 ); /* FALLTHROUGH */ \
+ case 2: _hj_i += ( (unsigned)_hj_key[1] << 8 ); /* FALLTHROUGH */ \
+ case 1: _hj_i += _hj_key[0]; /* FALLTHROUGH */ \
+ default: ; \
+ } \
+ HASH_JEN_MIX(_hj_i, _hj_j, hashv); \
+} while (0)
+
+/* The Paul Hsieh hash function */
+#undef get16bits
+#if (defined(__GNUC__) && defined(__i386__)) || defined(__WATCOMC__) \
+ || defined(_MSC_VER) || defined (__BORLANDC__) || defined (__TURBOC__)
+#define get16bits(d) (*((const uint16_t *) (d)))
+#endif
+
+#if !defined (get16bits)
+#define get16bits(d) ((((uint32_t)(((const uint8_t *)(d))[1])) << 8) \
+ +(uint32_t)(((const uint8_t *)(d))[0]) )
+#endif
+#define HASH_SFH(key,keylen,hashv) \
+do { \
+ unsigned const char *_sfh_key=(unsigned const char*)(key); \
+ uint32_t _sfh_tmp, _sfh_len = (uint32_t)keylen; \
+ \
+ unsigned _sfh_rem = _sfh_len & 3U; \
+ _sfh_len >>= 2; \
+ hashv = 0xcafebabeu; \
+ \
+ /* Main loop */ \
+ for (;_sfh_len > 0U; _sfh_len--) { \
+ hashv += get16bits (_sfh_key); \
+ _sfh_tmp = ((uint32_t)(get16bits (_sfh_key+2)) << 11) ^ hashv; \
+ hashv = (hashv << 16) ^ _sfh_tmp; \
+ _sfh_key += 2U*sizeof (uint16_t); \
+ hashv += hashv >> 11; \
+ } \
+ \
+ /* Handle end cases */ \
+ switch (_sfh_rem) { \
+ case 3: hashv += get16bits (_sfh_key); \
+ hashv ^= hashv << 16; \
+ hashv ^= (uint32_t)(_sfh_key[sizeof (uint16_t)]) << 18; \
+ hashv += hashv >> 11; \
+ break; \
+ case 2: hashv += get16bits (_sfh_key); \
+ hashv ^= hashv << 11; \
+ hashv += hashv >> 17; \
+ break; \
+ case 1: hashv += *_sfh_key; \
+ hashv ^= hashv << 10; \
+ hashv += hashv >> 1; \
+ break; \
+ default: ; \
+ } \
+ \
+ /* Force "avalanching" of final 127 bits */ \
+ hashv ^= hashv << 3; \
+ hashv += hashv >> 5; \
+ hashv ^= hashv << 4; \
+ hashv += hashv >> 17; \
+ hashv ^= hashv << 25; \
+ hashv += hashv >> 6; \
+} while (0)
+
+/* iterate over items in a known bucket to find desired item */
+#define HASH_FIND_IN_BKT(tbl,hh,head,keyptr,keylen_in,hashval,out) \
+do { \
+ if ((head).hh_head != NULL) { \
+ DECLTYPE_ASSIGN(out, ELMT_FROM_HH(tbl, (head).hh_head)); \
+ } else { \
+ (out) = NULL; \
+ } \
+ while ((out) != NULL) { \
+ if ((out)->hh.hashv == (hashval) && (out)->hh.keylen == (keylen_in)) { \
+ if (HASH_KEYCMP((out)->hh.key, keyptr, keylen_in) == 0) { \
+ break; \
+ } \
+ } \
+ if ((out)->hh.hh_next != NULL) { \
+ DECLTYPE_ASSIGN(out, ELMT_FROM_HH(tbl, (out)->hh.hh_next)); \
+ } else { \
+ (out) = NULL; \
+ } \
+ } \
+} while (0)
+
+/* add an item to a bucket */
+#define HASH_ADD_TO_BKT(head,hh,addhh,oomed) \
+do { \
+ UT_hash_bucket *_ha_head = &(head); \
+ _ha_head->count++; \
+ (addhh)->hh_next = _ha_head->hh_head; \
+ (addhh)->hh_prev = NULL; \
+ if (_ha_head->hh_head != NULL) { \
+ _ha_head->hh_head->hh_prev = (addhh); \
+ } \
+ _ha_head->hh_head = (addhh); \
+ if ((_ha_head->count >= ((_ha_head->expand_mult + 1U) * HASH_BKT_CAPACITY_THRESH)) \
+ && !(addhh)->tbl->noexpand) { \
+ HASH_EXPAND_BUCKETS(addhh,(addhh)->tbl, oomed); \
+ IF_HASH_NONFATAL_OOM( \
+ if (oomed) { \
+ HASH_DEL_IN_BKT(head,addhh); \
+ } \
+ ) \
+ } \
+} while (0)
+
+/* remove an item from a given bucket */
+#define HASH_DEL_IN_BKT(head,delhh) \
+do { \
+ UT_hash_bucket *_hd_head = &(head); \
+ _hd_head->count--; \
+ if (_hd_head->hh_head == (delhh)) { \
+ _hd_head->hh_head = (delhh)->hh_next; \
+ } \
+ if ((delhh)->hh_prev) { \
+ (delhh)->hh_prev->hh_next = (delhh)->hh_next; \
+ } \
+ if ((delhh)->hh_next) { \
+ (delhh)->hh_next->hh_prev = (delhh)->hh_prev; \
+ } \
+} while (0)
+
+/* Bucket expansion has the effect of doubling the number of buckets
+ * and redistributing the items into the new buckets. Ideally the
+ * items will distribute more or less evenly into the new buckets
+ * (the extent to which this is true is a measure of the quality of
+ * the hash function as it applies to the key domain).
+ *
+ * With the items distributed into more buckets, the chain length
+ * (item count) in each bucket is reduced. Thus by expanding buckets
+ * the hash keeps a bound on the chain length. This bounded chain
+ * length is the essence of how a hash provides constant time lookup.
+ *
+ * The calculation of tbl->ideal_chain_maxlen below deserves some
+ * explanation. First, keep in mind that we're calculating the ideal
+ * maximum chain length based on the *new* (doubled) bucket count.
+ * In fractions this is just n/b (n=number of items,b=new num buckets).
+ * Since the ideal chain length is an integer, we want to calculate
+ * ceil(n/b). We don't depend on floating point arithmetic in this
+ * hash, so to calculate ceil(n/b) with integers we could write
+ *
+ * ceil(n/b) = (n/b) + ((n%b)?1:0)
+ *
+ * and in fact a previous version of this hash did just that.
+ * But now we have improved things a bit by recognizing that b is
+ * always a power of two. We keep its base 2 log handy (call it lb),
+ * so now we can write this with a bit shift and logical AND:
+ *
+ * ceil(n/b) = (n>>lb) + ( (n & (b-1)) ? 1:0)
+ *
+ */
+#define HASH_EXPAND_BUCKETS(hh,tbl,oomed) \
+do { \
+ unsigned _he_bkt; \
+ unsigned _he_bkt_i; \
+ struct UT_hash_handle *_he_thh, *_he_hh_nxt; \
+ UT_hash_bucket *_he_new_buckets, *_he_newbkt; \
+ _he_new_buckets = (UT_hash_bucket*)uthash_malloc( \
+ sizeof(struct UT_hash_bucket) * (tbl)->num_buckets * 2U); \
+ if (!_he_new_buckets) { \
+ HASH_RECORD_OOM(oomed); \
+ } else { \
+ uthash_bzero(_he_new_buckets, \
+ sizeof(struct UT_hash_bucket) * (tbl)->num_buckets * 2U); \
+ (tbl)->ideal_chain_maxlen = \
+ ((tbl)->num_items >> ((tbl)->log2_num_buckets+1U)) + \
+ ((((tbl)->num_items & (((tbl)->num_buckets*2U)-1U)) != 0U) ? 1U : 0U); \
+ (tbl)->nonideal_items = 0; \
+ for (_he_bkt_i = 0; _he_bkt_i < (tbl)->num_buckets; _he_bkt_i++) { \
+ _he_thh = (tbl)->buckets[ _he_bkt_i ].hh_head; \
+ while (_he_thh != NULL) { \
+ _he_hh_nxt = _he_thh->hh_next; \
+ HASH_TO_BKT(_he_thh->hashv, (tbl)->num_buckets * 2U, _he_bkt); \
+ _he_newbkt = &(_he_new_buckets[_he_bkt]); \
+ if (++(_he_newbkt->count) > (tbl)->ideal_chain_maxlen) { \
+ (tbl)->nonideal_items++; \
+ if (_he_newbkt->count > _he_newbkt->expand_mult * (tbl)->ideal_chain_maxlen) { \
+ _he_newbkt->expand_mult++; \
+ } \
+ } \
+ _he_thh->hh_prev = NULL; \
+ _he_thh->hh_next = _he_newbkt->hh_head; \
+ if (_he_newbkt->hh_head != NULL) { \
+ _he_newbkt->hh_head->hh_prev = _he_thh; \
+ } \
+ _he_newbkt->hh_head = _he_thh; \
+ _he_thh = _he_hh_nxt; \
+ } \
+ } \
+ uthash_free((tbl)->buckets, (tbl)->num_buckets * sizeof(struct UT_hash_bucket)); \
+ (tbl)->num_buckets *= 2U; \
+ (tbl)->log2_num_buckets++; \
+ (tbl)->buckets = _he_new_buckets; \
+ (tbl)->ineff_expands = ((tbl)->nonideal_items > ((tbl)->num_items >> 1)) ? \
+ ((tbl)->ineff_expands+1U) : 0U; \
+ if ((tbl)->ineff_expands > 1U) { \
+ (tbl)->noexpand = 1; \
+ uthash_noexpand_fyi(tbl); \
+ } \
+ uthash_expand_fyi(tbl); \
+ } \
+} while (0)
+
+
+/* This is an adaptation of Simon Tatham's O(n log(n)) mergesort */
+/* Note that HASH_SORT assumes the hash handle name to be hh.
+ * HASH_SRT was added to allow the hash handle name to be passed in. */
+#define HASH_SORT(head,cmpfcn) HASH_SRT(hh,head,cmpfcn)
+#define HASH_SRT(hh,head,cmpfcn) \
+do { \
+ unsigned _hs_i; \
+ unsigned _hs_looping,_hs_nmerges,_hs_insize,_hs_psize,_hs_qsize; \
+ struct UT_hash_handle *_hs_p, *_hs_q, *_hs_e, *_hs_list, *_hs_tail; \
+ if (head != NULL) { \
+ _hs_insize = 1; \
+ _hs_looping = 1; \
+ _hs_list = &((head)->hh); \
+ while (_hs_looping != 0U) { \
+ _hs_p = _hs_list; \
+ _hs_list = NULL; \
+ _hs_tail = NULL; \
+ _hs_nmerges = 0; \
+ while (_hs_p != NULL) { \
+ _hs_nmerges++; \
+ _hs_q = _hs_p; \
+ _hs_psize = 0; \
+ for (_hs_i = 0; _hs_i < _hs_insize; ++_hs_i) { \
+ _hs_psize++; \
+ _hs_q = ((_hs_q->next != NULL) ? \
+ HH_FROM_ELMT((head)->hh.tbl, _hs_q->next) : NULL); \
+ if (_hs_q == NULL) { \
+ break; \
+ } \
+ } \
+ _hs_qsize = _hs_insize; \
+ while ((_hs_psize != 0U) || ((_hs_qsize != 0U) && (_hs_q != NULL))) { \
+ if (_hs_psize == 0U) { \
+ _hs_e = _hs_q; \
+ _hs_q = ((_hs_q->next != NULL) ? \
+ HH_FROM_ELMT((head)->hh.tbl, _hs_q->next) : NULL); \
+ _hs_qsize--; \
+ } else if ((_hs_qsize == 0U) || (_hs_q == NULL)) { \
+ _hs_e = _hs_p; \
+ if (_hs_p != NULL) { \
+ _hs_p = ((_hs_p->next != NULL) ? \
+ HH_FROM_ELMT((head)->hh.tbl, _hs_p->next) : NULL); \
+ } \
+ _hs_psize--; \
+ } else if ((cmpfcn( \
+ DECLTYPE(head)(ELMT_FROM_HH((head)->hh.tbl, _hs_p)), \
+ DECLTYPE(head)(ELMT_FROM_HH((head)->hh.tbl, _hs_q)) \
+ )) <= 0) { \
+ _hs_e = _hs_p; \
+ if (_hs_p != NULL) { \
+ _hs_p = ((_hs_p->next != NULL) ? \
+ HH_FROM_ELMT((head)->hh.tbl, _hs_p->next) : NULL); \
+ } \
+ _hs_psize--; \
+ } else { \
+ _hs_e = _hs_q; \
+ _hs_q = ((_hs_q->next != NULL) ? \
+ HH_FROM_ELMT((head)->hh.tbl, _hs_q->next) : NULL); \
+ _hs_qsize--; \
+ } \
+ if ( _hs_tail != NULL ) { \
+ _hs_tail->next = ((_hs_e != NULL) ? \
+ ELMT_FROM_HH((head)->hh.tbl, _hs_e) : NULL); \
+ } else { \
+ _hs_list = _hs_e; \
+ } \
+ if (_hs_e != NULL) { \
+ _hs_e->prev = ((_hs_tail != NULL) ? \
+ ELMT_FROM_HH((head)->hh.tbl, _hs_tail) : NULL); \
+ } \
+ _hs_tail = _hs_e; \
+ } \
+ _hs_p = _hs_q; \
+ } \
+ if (_hs_tail != NULL) { \
+ _hs_tail->next = NULL; \
+ } \
+ if (_hs_nmerges <= 1U) { \
+ _hs_looping = 0; \
+ (head)->hh.tbl->tail = _hs_tail; \
+ DECLTYPE_ASSIGN(head, ELMT_FROM_HH((head)->hh.tbl, _hs_list)); \
+ } \
+ _hs_insize *= 2U; \
+ } \
+ HASH_FSCK(hh, head, "HASH_SRT"); \
+ } \
+} while (0)
+
+/* This function selects items from one hash into another hash.
+ * The end result is that the selected items have dual presence
+ * in both hashes. There is no copy of the items made; rather
+ * they are added into the new hash through a secondary hash
+ * hash handle that must be present in the structure. */
+#define HASH_SELECT(hh_dst, dst, hh_src, src, cond) \
+do { \
+ unsigned _src_bkt, _dst_bkt; \
+ void *_last_elt = NULL, *_elt; \
+ UT_hash_handle *_src_hh, *_dst_hh, *_last_elt_hh=NULL; \
+ ptrdiff_t _dst_hho = ((char*)(&(dst)->hh_dst) - (char*)(dst)); \
+ if ((src) != NULL) { \
+ for (_src_bkt=0; _src_bkt < (src)->hh_src.tbl->num_buckets; _src_bkt++) { \
+ for (_src_hh = (src)->hh_src.tbl->buckets[_src_bkt].hh_head; \
+ _src_hh != NULL; \
+ _src_hh = _src_hh->hh_next) { \
+ _elt = ELMT_FROM_HH((src)->hh_src.tbl, _src_hh); \
+ if (cond(_elt)) { \
+ IF_HASH_NONFATAL_OOM( int _hs_oomed = 0; ) \
+ _dst_hh = (UT_hash_handle*)(void*)(((char*)_elt) + _dst_hho); \
+ _dst_hh->key = _src_hh->key; \
+ _dst_hh->keylen = _src_hh->keylen; \
+ _dst_hh->hashv = _src_hh->hashv; \
+ _dst_hh->prev = _last_elt; \
+ _dst_hh->next = NULL; \
+ if (_last_elt_hh != NULL) { \
+ _last_elt_hh->next = _elt; \
+ } \
+ if ((dst) == NULL) { \
+ DECLTYPE_ASSIGN(dst, _elt); \
+ HASH_MAKE_TABLE(hh_dst, dst, _hs_oomed); \
+ IF_HASH_NONFATAL_OOM( \
+ if (_hs_oomed) { \
+ uthash_nonfatal_oom(_elt); \
+ (dst) = NULL; \
+ continue; \
+ } \
+ ) \
+ } else { \
+ _dst_hh->tbl = (dst)->hh_dst.tbl; \
+ } \
+ HASH_TO_BKT(_dst_hh->hashv, _dst_hh->tbl->num_buckets, _dst_bkt); \
+ HASH_ADD_TO_BKT(_dst_hh->tbl->buckets[_dst_bkt], hh_dst, _dst_hh, _hs_oomed); \
+ (dst)->hh_dst.tbl->num_items++; \
+ IF_HASH_NONFATAL_OOM( \
+ if (_hs_oomed) { \
+ HASH_ROLLBACK_BKT(hh_dst, dst, _dst_hh); \
+ HASH_DELETE_HH(hh_dst, dst, _dst_hh); \
+ _dst_hh->tbl = NULL; \
+ uthash_nonfatal_oom(_elt); \
+ continue; \
+ } \
+ ) \
+ HASH_BLOOM_ADD(_dst_hh->tbl, _dst_hh->hashv); \
+ _last_elt = _elt; \
+ _last_elt_hh = _dst_hh; \
+ } \
+ } \
+ } \
+ } \
+ HASH_FSCK(hh_dst, dst, "HASH_SELECT"); \
+} while (0)
+
+#define HASH_CLEAR(hh,head) \
+do { \
+ if ((head) != NULL) { \
+ HASH_BLOOM_FREE((head)->hh.tbl); \
+ uthash_free((head)->hh.tbl->buckets, \
+ (head)->hh.tbl->num_buckets*sizeof(struct UT_hash_bucket)); \
+ uthash_free((head)->hh.tbl, sizeof(UT_hash_table)); \
+ (head) = NULL; \
+ } \
+} while (0)
+
+#define HASH_OVERHEAD(hh,head) \
+ (((head) != NULL) ? ( \
+ (size_t)(((head)->hh.tbl->num_items * sizeof(UT_hash_handle)) + \
+ ((head)->hh.tbl->num_buckets * sizeof(UT_hash_bucket)) + \
+ sizeof(UT_hash_table) + \
+ (HASH_BLOOM_BYTELEN))) : 0U)
+
+#ifdef NO_DECLTYPE
+#define HASH_ITER(hh,head,el,tmp) \
+for(((el)=(head)), ((*(char**)(&(tmp)))=(char*)((head!=NULL)?(head)->hh.next:NULL)); \
+ (el) != NULL; ((el)=(tmp)), ((*(char**)(&(tmp)))=(char*)((tmp!=NULL)?(tmp)->hh.next:NULL)))
+#else
+#define HASH_ITER(hh,head,el,tmp) \
+for(((el)=(head)), ((tmp)=DECLTYPE(el)((head!=NULL)?(head)->hh.next:NULL)); \
+ (el) != NULL; ((el)=(tmp)), ((tmp)=DECLTYPE(el)((tmp!=NULL)?(tmp)->hh.next:NULL)))
+#endif
+
+/* obtain a count of items in the hash */
+#define HASH_COUNT(head) HASH_CNT(hh,head)
+#define HASH_CNT(hh,head) ((head != NULL)?((head)->hh.tbl->num_items):0U)
+
+typedef struct UT_hash_bucket {
+ struct UT_hash_handle *hh_head;
+ unsigned count;
+
+ /* expand_mult is normally set to 0. In this situation, the max chain length
+ * threshold is enforced at its default value, HASH_BKT_CAPACITY_THRESH. (If
+ * the bucket's chain exceeds this length, bucket expansion is triggered).
+ * However, setting expand_mult to a non-zero value delays bucket expansion
+ * (that would be triggered by additions to this particular bucket)
+ * until its chain length reaches a *multiple* of HASH_BKT_CAPACITY_THRESH.
+ * (The multiplier is simply expand_mult+1). The whole idea of this
+ * multiplier is to reduce bucket expansions, since they are expensive, in
+ * situations where we know that a particular bucket tends to be overused.
+ * It is better to let its chain length grow to a longer yet-still-bounded
+ * value, than to do an O(n) bucket expansion too often.
+ */
+ unsigned expand_mult;
+
+} UT_hash_bucket;
+
+/* random signature used only to find hash tables in external analysis */
+#define HASH_SIGNATURE 0xa0111fe1u
+#define HASH_BLOOM_SIGNATURE 0xb12220f2u
+
+typedef struct UT_hash_table {
+ UT_hash_bucket *buckets;
+ unsigned num_buckets, log2_num_buckets;
+ unsigned num_items;
+ struct UT_hash_handle *tail; /* tail hh in app order, for fast append */
+ ptrdiff_t hho; /* hash handle offset (byte pos of hash handle in element */
+
+ /* in an ideal situation (all buckets used equally), no bucket would have
+ * more than ceil(#items/#buckets) items. that's the ideal chain length. */
+ unsigned ideal_chain_maxlen;
+
+ /* nonideal_items is the number of items in the hash whose chain position
+ * exceeds the ideal chain maxlen. these items pay the penalty for an uneven
+ * hash distribution; reaching them in a chain traversal takes >ideal steps */
+ unsigned nonideal_items;
+
+ /* ineffective expands occur when a bucket doubling was performed, but
+ * afterward, more than half the items in the hash had nonideal chain
+ * positions. If this happens on two consecutive expansions we inhibit any
+ * further expansion, as it's not helping; this happens when the hash
+ * function isn't a good fit for the key domain. When expansion is inhibited
+ * the hash will still work, albeit no longer in constant time. */
+ unsigned ineff_expands, noexpand;
+
+ uint32_t signature; /* used only to find hash tables in external analysis */
+#ifdef HASH_BLOOM
+ uint32_t bloom_sig; /* used only to test bloom exists in external analysis */
+ uint8_t *bloom_bv;
+ uint8_t bloom_nbits;
+#endif
+
+} UT_hash_table;
+
+typedef struct UT_hash_handle {
+ struct UT_hash_table *tbl;
+ void *prev; /* prev element in app order */
+ void *next; /* next element in app order */
+ struct UT_hash_handle *hh_prev; /* previous hh in bucket order */
+ struct UT_hash_handle *hh_next; /* next hh in bucket order */
+ const void *key; /* ptr to enclosing struct's key */
+ unsigned keylen; /* enclosing struct's key len */
+ unsigned hashv; /* result of hash-fcn(key) */
+} UT_hash_handle;
+
+#endif /* UTHASH_H */
diff --git a/lib/uthash/src/utlist.h b/lib/uthash/src/utlist.h
new file mode 100644
index 0000000..08fc59a
--- /dev/null
+++ b/lib/uthash/src/utlist.h
@@ -0,0 +1,1076 @@
+/*
+Copyright (c) 2007-2022, Troy D. Hanson https://troydhanson.github.io/uthash/
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef UTLIST_H
+#define UTLIST_H
+
+#define UTLIST_VERSION 2.3.0
+
+#include <assert.h>
+
+/*
+ * This file contains macros to manipulate singly and doubly-linked lists.
+ *
+ * 1. LL_ macros: singly-linked lists.
+ * 2. DL_ macros: doubly-linked lists.
+ * 3. CDL_ macros: circular doubly-linked lists.
+ *
+ * To use singly-linked lists, your structure must have a "next" pointer.
+ * To use doubly-linked lists, your structure must "prev" and "next" pointers.
+ * Either way, the pointer to the head of the list must be initialized to NULL.
+ *
+ * ----------------.EXAMPLE -------------------------
+ * struct item {
+ * int id;
+ * struct item *prev, *next;
+ * }
+ *
+ * struct item *list = NULL:
+ *
+ * int main() {
+ * struct item *item;
+ * ... allocate and populate item ...
+ * DL_APPEND(list, item);
+ * }
+ * --------------------------------------------------
+ *
+ * For doubly-linked lists, the append and delete macros are O(1)
+ * For singly-linked lists, append and delete are O(n) but prepend is O(1)
+ * The sort macro is O(n log(n)) for all types of single/double/circular lists.
+ */
+
+/* These macros use decltype or the earlier __typeof GNU extension.
+ As decltype is only available in newer compilers (VS2010 or gcc 4.3+
+ when compiling c++ source) this code uses whatever method is needed
+ or, for VS2008 where neither is available, uses casting workarounds. */
+#if !defined(LDECLTYPE) && !defined(NO_DECLTYPE)
+#if defined(_MSC_VER) /* MS compiler */
+#if _MSC_VER >= 1600 && defined(__cplusplus) /* VS2010 or newer in C++ mode */
+#define LDECLTYPE(x) decltype(x)
+#else /* VS2008 or older (or VS2010 in C mode) */
+#define NO_DECLTYPE
+#endif
+#elif defined(__MCST__) /* Elbrus C Compiler */
+#define LDECLTYPE(x) __typeof(x)
+#elif defined(__BORLANDC__) || defined(__ICCARM__) || defined(__LCC__) || defined(__WATCOMC__)
+#define NO_DECLTYPE
+#else /* GNU, Sun and other compilers */
+#define LDECLTYPE(x) __typeof(x)
+#endif
+#endif
+
+/* for VS2008 we use some workarounds to get around the lack of decltype,
+ * namely, we always reassign our tmp variable to the list head if we need
+ * to dereference its prev/next pointers, and save/restore the real head.*/
+#ifdef NO_DECLTYPE
+#define IF_NO_DECLTYPE(x) x
+#define LDECLTYPE(x) char*
+#define UTLIST_SV(elt,list) _tmp = (char*)(list); {char **_alias = (char**)&(list); *_alias = (elt); }
+#define UTLIST_NEXT(elt,list,next) ((char*)((list)->next))
+#define UTLIST_NEXTASGN(elt,list,to,next) { char **_alias = (char**)&((list)->next); *_alias=(char*)(to); }
+/* #define UTLIST_PREV(elt,list,prev) ((char*)((list)->prev)) */
+#define UTLIST_PREVASGN(elt,list,to,prev) { char **_alias = (char**)&((list)->prev); *_alias=(char*)(to); }
+#define UTLIST_RS(list) { char **_alias = (char**)&(list); *_alias=_tmp; }
+#define UTLIST_CASTASGN(a,b) { char **_alias = (char**)&(a); *_alias=(char*)(b); }
+#else
+#define IF_NO_DECLTYPE(x)
+#define UTLIST_SV(elt,list)
+#define UTLIST_NEXT(elt,list,next) ((elt)->next)
+#define UTLIST_NEXTASGN(elt,list,to,next) ((elt)->next)=(to)
+/* #define UTLIST_PREV(elt,list,prev) ((elt)->prev) */
+#define UTLIST_PREVASGN(elt,list,to,prev) ((elt)->prev)=(to)
+#define UTLIST_RS(list)
+#define UTLIST_CASTASGN(a,b) (a)=(b)
+#endif
+
+/******************************************************************************
+ * The sort macro is an adaptation of Simon Tatham's O(n log(n)) mergesort *
+ * Unwieldy variable names used here to avoid shadowing passed-in variables. *
+ *****************************************************************************/
+#define LL_SORT(list, cmp) \
+ LL_SORT2(list, cmp, next)
+
+#define LL_SORT2(list, cmp, next) \
+do { \
+ LDECLTYPE(list) _ls_p; \
+ LDECLTYPE(list) _ls_q; \
+ LDECLTYPE(list) _ls_e; \
+ LDECLTYPE(list) _ls_tail; \
+ IF_NO_DECLTYPE(LDECLTYPE(list) _tmp;) \
+ int _ls_insize, _ls_nmerges, _ls_psize, _ls_qsize, _ls_i, _ls_looping; \
+ if (list) { \
+ _ls_insize = 1; \
+ _ls_looping = 1; \
+ while (_ls_looping) { \
+ UTLIST_CASTASGN(_ls_p,list); \
+ (list) = NULL; \
+ _ls_tail = NULL; \
+ _ls_nmerges = 0; \
+ while (_ls_p) { \
+ _ls_nmerges++; \
+ _ls_q = _ls_p; \
+ _ls_psize = 0; \
+ for (_ls_i = 0; _ls_i < _ls_insize; _ls_i++) { \
+ _ls_psize++; \
+ UTLIST_SV(_ls_q,list); _ls_q = UTLIST_NEXT(_ls_q,list,next); UTLIST_RS(list); \
+ if (!_ls_q) break; \
+ } \
+ _ls_qsize = _ls_insize; \
+ while (_ls_psize > 0 || (_ls_qsize > 0 && _ls_q)) { \
+ if (_ls_psize == 0) { \
+ _ls_e = _ls_q; UTLIST_SV(_ls_q,list); _ls_q = \
+ UTLIST_NEXT(_ls_q,list,next); UTLIST_RS(list); _ls_qsize--; \
+ } else if (_ls_qsize == 0 || !_ls_q) { \
+ _ls_e = _ls_p; UTLIST_SV(_ls_p,list); _ls_p = \
+ UTLIST_NEXT(_ls_p,list,next); UTLIST_RS(list); _ls_psize--; \
+ } else if (cmp(_ls_p,_ls_q) <= 0) { \
+ _ls_e = _ls_p; UTLIST_SV(_ls_p,list); _ls_p = \
+ UTLIST_NEXT(_ls_p,list,next); UTLIST_RS(list); _ls_psize--; \
+ } else { \
+ _ls_e = _ls_q; UTLIST_SV(_ls_q,list); _ls_q = \
+ UTLIST_NEXT(_ls_q,list,next); UTLIST_RS(list); _ls_qsize--; \
+ } \
+ if (_ls_tail) { \
+ UTLIST_SV(_ls_tail,list); UTLIST_NEXTASGN(_ls_tail,list,_ls_e,next); UTLIST_RS(list); \
+ } else { \
+ UTLIST_CASTASGN(list,_ls_e); \
+ } \
+ _ls_tail = _ls_e; \
+ } \
+ _ls_p = _ls_q; \
+ } \
+ if (_ls_tail) { \
+ UTLIST_SV(_ls_tail,list); UTLIST_NEXTASGN(_ls_tail,list,NULL,next); UTLIST_RS(list); \
+ } \
+ if (_ls_nmerges <= 1) { \
+ _ls_looping=0; \
+ } \
+ _ls_insize *= 2; \
+ } \
+ } \
+} while (0)
+
+
+#define DL_SORT(list, cmp) \
+ DL_SORT2(list, cmp, prev, next)
+
+#define DL_SORT2(list, cmp, prev, next) \
+do { \
+ LDECLTYPE(list) _ls_p; \
+ LDECLTYPE(list) _ls_q; \
+ LDECLTYPE(list) _ls_e; \
+ LDECLTYPE(list) _ls_tail; \
+ IF_NO_DECLTYPE(LDECLTYPE(list) _tmp;) \
+ int _ls_insize, _ls_nmerges, _ls_psize, _ls_qsize, _ls_i, _ls_looping; \
+ if (list) { \
+ _ls_insize = 1; \
+ _ls_looping = 1; \
+ while (_ls_looping) { \
+ UTLIST_CASTASGN(_ls_p,list); \
+ (list) = NULL; \
+ _ls_tail = NULL; \
+ _ls_nmerges = 0; \
+ while (_ls_p) { \
+ _ls_nmerges++; \
+ _ls_q = _ls_p; \
+ _ls_psize = 0; \
+ for (_ls_i = 0; _ls_i < _ls_insize; _ls_i++) { \
+ _ls_psize++; \
+ UTLIST_SV(_ls_q,list); _ls_q = UTLIST_NEXT(_ls_q,list,next); UTLIST_RS(list); \
+ if (!_ls_q) break; \
+ } \
+ _ls_qsize = _ls_insize; \
+ while ((_ls_psize > 0) || ((_ls_qsize > 0) && _ls_q)) { \
+ if (_ls_psize == 0) { \
+ _ls_e = _ls_q; UTLIST_SV(_ls_q,list); _ls_q = \
+ UTLIST_NEXT(_ls_q,list,next); UTLIST_RS(list); _ls_qsize--; \
+ } else if ((_ls_qsize == 0) || (!_ls_q)) { \
+ _ls_e = _ls_p; UTLIST_SV(_ls_p,list); _ls_p = \
+ UTLIST_NEXT(_ls_p,list,next); UTLIST_RS(list); _ls_psize--; \
+ } else if (cmp(_ls_p,_ls_q) <= 0) { \
+ _ls_e = _ls_p; UTLIST_SV(_ls_p,list); _ls_p = \
+ UTLIST_NEXT(_ls_p,list,next); UTLIST_RS(list); _ls_psize--; \
+ } else { \
+ _ls_e = _ls_q; UTLIST_SV(_ls_q,list); _ls_q = \
+ UTLIST_NEXT(_ls_q,list,next); UTLIST_RS(list); _ls_qsize--; \
+ } \
+ if (_ls_tail) { \
+ UTLIST_SV(_ls_tail,list); UTLIST_NEXTASGN(_ls_tail,list,_ls_e,next); UTLIST_RS(list); \
+ } else { \
+ UTLIST_CASTASGN(list,_ls_e); \
+ } \
+ UTLIST_SV(_ls_e,list); UTLIST_PREVASGN(_ls_e,list,_ls_tail,prev); UTLIST_RS(list); \
+ _ls_tail = _ls_e; \
+ } \
+ _ls_p = _ls_q; \
+ } \
+ UTLIST_CASTASGN((list)->prev, _ls_tail); \
+ UTLIST_SV(_ls_tail,list); UTLIST_NEXTASGN(_ls_tail,list,NULL,next); UTLIST_RS(list); \
+ if (_ls_nmerges <= 1) { \
+ _ls_looping=0; \
+ } \
+ _ls_insize *= 2; \
+ } \
+ } \
+} while (0)
+
+#define CDL_SORT(list, cmp) \
+ CDL_SORT2(list, cmp, prev, next)
+
+#define CDL_SORT2(list, cmp, prev, next) \
+do { \
+ LDECLTYPE(list) _ls_p; \
+ LDECLTYPE(list) _ls_q; \
+ LDECLTYPE(list) _ls_e; \
+ LDECLTYPE(list) _ls_tail; \
+ LDECLTYPE(list) _ls_oldhead; \
+ LDECLTYPE(list) _tmp; \
+ int _ls_insize, _ls_nmerges, _ls_psize, _ls_qsize, _ls_i, _ls_looping; \
+ if (list) { \
+ _ls_insize = 1; \
+ _ls_looping = 1; \
+ while (_ls_looping) { \
+ UTLIST_CASTASGN(_ls_p,list); \
+ UTLIST_CASTASGN(_ls_oldhead,list); \
+ (list) = NULL; \
+ _ls_tail = NULL; \
+ _ls_nmerges = 0; \
+ while (_ls_p) { \
+ _ls_nmerges++; \
+ _ls_q = _ls_p; \
+ _ls_psize = 0; \
+ for (_ls_i = 0; _ls_i < _ls_insize; _ls_i++) { \
+ _ls_psize++; \
+ UTLIST_SV(_ls_q,list); \
+ if (UTLIST_NEXT(_ls_q,list,next) == _ls_oldhead) { \
+ _ls_q = NULL; \
+ } else { \
+ _ls_q = UTLIST_NEXT(_ls_q,list,next); \
+ } \
+ UTLIST_RS(list); \
+ if (!_ls_q) break; \
+ } \
+ _ls_qsize = _ls_insize; \
+ while (_ls_psize > 0 || (_ls_qsize > 0 && _ls_q)) { \
+ if (_ls_psize == 0) { \
+ _ls_e = _ls_q; UTLIST_SV(_ls_q,list); _ls_q = \
+ UTLIST_NEXT(_ls_q,list,next); UTLIST_RS(list); _ls_qsize--; \
+ if (_ls_q == _ls_oldhead) { _ls_q = NULL; } \
+ } else if (_ls_qsize == 0 || !_ls_q) { \
+ _ls_e = _ls_p; UTLIST_SV(_ls_p,list); _ls_p = \
+ UTLIST_NEXT(_ls_p,list,next); UTLIST_RS(list); _ls_psize--; \
+ if (_ls_p == _ls_oldhead) { _ls_p = NULL; } \
+ } else if (cmp(_ls_p,_ls_q) <= 0) { \
+ _ls_e = _ls_p; UTLIST_SV(_ls_p,list); _ls_p = \
+ UTLIST_NEXT(_ls_p,list,next); UTLIST_RS(list); _ls_psize--; \
+ if (_ls_p == _ls_oldhead) { _ls_p = NULL; } \
+ } else { \
+ _ls_e = _ls_q; UTLIST_SV(_ls_q,list); _ls_q = \
+ UTLIST_NEXT(_ls_q,list,next); UTLIST_RS(list); _ls_qsize--; \
+ if (_ls_q == _ls_oldhead) { _ls_q = NULL; } \
+ } \
+ if (_ls_tail) { \
+ UTLIST_SV(_ls_tail,list); UTLIST_NEXTASGN(_ls_tail,list,_ls_e,next); UTLIST_RS(list); \
+ } else { \
+ UTLIST_CASTASGN(list,_ls_e); \
+ } \
+ UTLIST_SV(_ls_e,list); UTLIST_PREVASGN(_ls_e,list,_ls_tail,prev); UTLIST_RS(list); \
+ _ls_tail = _ls_e; \
+ } \
+ _ls_p = _ls_q; \
+ } \
+ UTLIST_CASTASGN((list)->prev,_ls_tail); \
+ UTLIST_CASTASGN(_tmp,list); \
+ UTLIST_SV(_ls_tail,list); UTLIST_NEXTASGN(_ls_tail,list,_tmp,next); UTLIST_RS(list); \
+ if (_ls_nmerges <= 1) { \
+ _ls_looping=0; \
+ } \
+ _ls_insize *= 2; \
+ } \
+ } \
+} while (0)
+
+/******************************************************************************
+ * singly linked list macros (non-circular) *
+ *****************************************************************************/
+#define LL_PREPEND(head,add) \
+ LL_PREPEND2(head,add,next)
+
+#define LL_PREPEND2(head,add,next) \
+do { \
+ (add)->next = (head); \
+ (head) = (add); \
+} while (0)
+
+#define LL_CONCAT(head1,head2) \
+ LL_CONCAT2(head1,head2,next)
+
+#define LL_CONCAT2(head1,head2,next) \
+do { \
+ LDECLTYPE(head1) _tmp; \
+ if (head1) { \
+ _tmp = (head1); \
+ while (_tmp->next) { _tmp = _tmp->next; } \
+ _tmp->next=(head2); \
+ } else { \
+ (head1)=(head2); \
+ } \
+} while (0)
+
+#define LL_APPEND(head,add) \
+ LL_APPEND2(head,add,next)
+
+#define LL_APPEND2(head,add,next) \
+do { \
+ LDECLTYPE(head) _tmp; \
+ (add)->next=NULL; \
+ if (head) { \
+ _tmp = (head); \
+ while (_tmp->next) { _tmp = _tmp->next; } \
+ _tmp->next=(add); \
+ } else { \
+ (head)=(add); \
+ } \
+} while (0)
+
+#define LL_INSERT_INORDER(head,add,cmp) \
+ LL_INSERT_INORDER2(head,add,cmp,next)
+
+#define LL_INSERT_INORDER2(head,add,cmp,next) \
+do { \
+ LDECLTYPE(head) _tmp; \
+ if (head) { \
+ LL_LOWER_BOUND2(head, _tmp, add, cmp, next); \
+ LL_APPEND_ELEM2(head, _tmp, add, next); \
+ } else { \
+ (head) = (add); \
+ (head)->next = NULL; \
+ } \
+} while (0)
+
+#define LL_LOWER_BOUND(head,elt,like,cmp) \
+ LL_LOWER_BOUND2(head,elt,like,cmp,next)
+
+#define LL_LOWER_BOUND2(head,elt,like,cmp,next) \
+ do { \
+ if ((head) == NULL || (cmp(head, like)) >= 0) { \
+ (elt) = NULL; \
+ } else { \
+ for ((elt) = (head); (elt)->next != NULL; (elt) = (elt)->next) { \
+ if (cmp((elt)->next, like) >= 0) { \
+ break; \
+ } \
+ } \
+ } \
+ } while (0)
+
+#define LL_DELETE(head,del) \
+ LL_DELETE2(head,del,next)
+
+#define LL_DELETE2(head,del,next) \
+do { \
+ LDECLTYPE(head) _tmp; \
+ if ((head) == (del)) { \
+ (head)=(head)->next; \
+ } else { \
+ _tmp = (head); \
+ while (_tmp->next && (_tmp->next != (del))) { \
+ _tmp = _tmp->next; \
+ } \
+ if (_tmp->next) { \
+ _tmp->next = (del)->next; \
+ } \
+ } \
+} while (0)
+
+#define LL_COUNT(head,el,counter) \
+ LL_COUNT2(head,el,counter,next) \
+
+#define LL_COUNT2(head,el,counter,next) \
+do { \
+ (counter) = 0; \
+ LL_FOREACH2(head,el,next) { ++(counter); } \
+} while (0)
+
+#define LL_FOREACH(head,el) \
+ LL_FOREACH2(head,el,next)
+
+#define LL_FOREACH2(head,el,next) \
+ for ((el) = (head); el; (el) = (el)->next)
+
+#define LL_FOREACH_SAFE(head,el,tmp) \
+ LL_FOREACH_SAFE2(head,el,tmp,next)
+
+#define LL_FOREACH_SAFE2(head,el,tmp,next) \
+ for ((el) = (head); (el) && ((tmp) = (el)->next, 1); (el) = (tmp))
+
+#define LL_SEARCH_SCALAR(head,out,field,val) \
+ LL_SEARCH_SCALAR2(head,out,field,val,next)
+
+#define LL_SEARCH_SCALAR2(head,out,field,val,next) \
+do { \
+ LL_FOREACH2(head,out,next) { \
+ if ((out)->field == (val)) break; \
+ } \
+} while (0)
+
+#define LL_SEARCH(head,out,elt,cmp) \
+ LL_SEARCH2(head,out,elt,cmp,next)
+
+#define LL_SEARCH2(head,out,elt,cmp,next) \
+do { \
+ LL_FOREACH2(head,out,next) { \
+ if ((cmp(out,elt))==0) break; \
+ } \
+} while (0)
+
+#define LL_REPLACE_ELEM2(head, el, add, next) \
+do { \
+ LDECLTYPE(head) _tmp; \
+ assert((head) != NULL); \
+ assert((el) != NULL); \
+ assert((add) != NULL); \
+ (add)->next = (el)->next; \
+ if ((head) == (el)) { \
+ (head) = (add); \
+ } else { \
+ _tmp = (head); \
+ while (_tmp->next && (_tmp->next != (el))) { \
+ _tmp = _tmp->next; \
+ } \
+ if (_tmp->next) { \
+ _tmp->next = (add); \
+ } \
+ } \
+} while (0)
+
+#define LL_REPLACE_ELEM(head, el, add) \
+ LL_REPLACE_ELEM2(head, el, add, next)
+
+#define LL_PREPEND_ELEM2(head, el, add, next) \
+do { \
+ if (el) { \
+ LDECLTYPE(head) _tmp; \
+ assert((head) != NULL); \
+ assert((add) != NULL); \
+ (add)->next = (el); \
+ if ((head) == (el)) { \
+ (head) = (add); \
+ } else { \
+ _tmp = (head); \
+ while (_tmp->next && (_tmp->next != (el))) { \
+ _tmp = _tmp->next; \
+ } \
+ if (_tmp->next) { \
+ _tmp->next = (add); \
+ } \
+ } \
+ } else { \
+ LL_APPEND2(head, add, next); \
+ } \
+} while (0) \
+
+#define LL_PREPEND_ELEM(head, el, add) \
+ LL_PREPEND_ELEM2(head, el, add, next)
+
+#define LL_APPEND_ELEM2(head, el, add, next) \
+do { \
+ if (el) { \
+ assert((head) != NULL); \
+ assert((add) != NULL); \
+ (add)->next = (el)->next; \
+ (el)->next = (add); \
+ } else { \
+ LL_PREPEND2(head, add, next); \
+ } \
+} while (0) \
+
+#define LL_APPEND_ELEM(head, el, add) \
+ LL_APPEND_ELEM2(head, el, add, next)
+
+#ifdef NO_DECLTYPE
+/* Here are VS2008 / NO_DECLTYPE replacements for a few functions */
+
+#undef LL_CONCAT2
+#define LL_CONCAT2(head1,head2,next) \
+do { \
+ char *_tmp; \
+ if (head1) { \
+ _tmp = (char*)(head1); \
+ while ((head1)->next) { (head1) = (head1)->next; } \
+ (head1)->next = (head2); \
+ UTLIST_RS(head1); \
+ } else { \
+ (head1)=(head2); \
+ } \
+} while (0)
+
+#undef LL_APPEND2
+#define LL_APPEND2(head,add,next) \
+do { \
+ if (head) { \
+ (add)->next = head; /* use add->next as a temp variable */ \
+ while ((add)->next->next) { (add)->next = (add)->next->next; } \
+ (add)->next->next=(add); \
+ } else { \
+ (head)=(add); \
+ } \
+ (add)->next=NULL; \
+} while (0)
+
+#undef LL_INSERT_INORDER2
+#define LL_INSERT_INORDER2(head,add,cmp,next) \
+do { \
+ if ((head) == NULL || (cmp(head, add)) >= 0) { \
+ (add)->next = (head); \
+ (head) = (add); \
+ } else { \
+ char *_tmp = (char*)(head); \
+ while ((head)->next != NULL && (cmp((head)->next, add)) < 0) { \
+ (head) = (head)->next; \
+ } \
+ (add)->next = (head)->next; \
+ (head)->next = (add); \
+ UTLIST_RS(head); \
+ } \
+} while (0)
+
+#undef LL_DELETE2
+#define LL_DELETE2(head,del,next) \
+do { \
+ if ((head) == (del)) { \
+ (head)=(head)->next; \
+ } else { \
+ char *_tmp = (char*)(head); \
+ while ((head)->next && ((head)->next != (del))) { \
+ (head) = (head)->next; \
+ } \
+ if ((head)->next) { \
+ (head)->next = ((del)->next); \
+ } \
+ UTLIST_RS(head); \
+ } \
+} while (0)
+
+#undef LL_REPLACE_ELEM2
+#define LL_REPLACE_ELEM2(head, el, add, next) \
+do { \
+ assert((head) != NULL); \
+ assert((el) != NULL); \
+ assert((add) != NULL); \
+ if ((head) == (el)) { \
+ (head) = (add); \
+ } else { \
+ (add)->next = head; \
+ while ((add)->next->next && ((add)->next->next != (el))) { \
+ (add)->next = (add)->next->next; \
+ } \
+ if ((add)->next->next) { \
+ (add)->next->next = (add); \
+ } \
+ } \
+ (add)->next = (el)->next; \
+} while (0)
+
+#undef LL_PREPEND_ELEM2
+#define LL_PREPEND_ELEM2(head, el, add, next) \
+do { \
+ if (el) { \
+ assert((head) != NULL); \
+ assert((add) != NULL); \
+ if ((head) == (el)) { \
+ (head) = (add); \
+ } else { \
+ (add)->next = (head); \
+ while ((add)->next->next && ((add)->next->next != (el))) { \
+ (add)->next = (add)->next->next; \
+ } \
+ if ((add)->next->next) { \
+ (add)->next->next = (add); \
+ } \
+ } \
+ (add)->next = (el); \
+ } else { \
+ LL_APPEND2(head, add, next); \
+ } \
+} while (0) \
+
+#endif /* NO_DECLTYPE */
+
+/******************************************************************************
+ * doubly linked list macros (non-circular) *
+ *****************************************************************************/
+#define DL_PREPEND(head,add) \
+ DL_PREPEND2(head,add,prev,next)
+
+#define DL_PREPEND2(head,add,prev,next) \
+do { \
+ (add)->next = (head); \
+ if (head) { \
+ (add)->prev = (head)->prev; \
+ (head)->prev = (add); \
+ } else { \
+ (add)->prev = (add); \
+ } \
+ (head) = (add); \
+} while (0)
+
+#define DL_APPEND(head,add) \
+ DL_APPEND2(head,add,prev,next)
+
+#define DL_APPEND2(head,add,prev,next) \
+do { \
+ if (head) { \
+ (add)->prev = (head)->prev; \
+ (head)->prev->next = (add); \
+ (head)->prev = (add); \
+ (add)->next = NULL; \
+ } else { \
+ (head)=(add); \
+ (head)->prev = (head); \
+ (head)->next = NULL; \
+ } \
+} while (0)
+
+#define DL_INSERT_INORDER(head,add,cmp) \
+ DL_INSERT_INORDER2(head,add,cmp,prev,next)
+
+#define DL_INSERT_INORDER2(head,add,cmp,prev,next) \
+do { \
+ LDECLTYPE(head) _tmp; \
+ if (head) { \
+ DL_LOWER_BOUND2(head, _tmp, add, cmp, next); \
+ DL_APPEND_ELEM2(head, _tmp, add, prev, next); \
+ } else { \
+ (head) = (add); \
+ (head)->prev = (head); \
+ (head)->next = NULL; \
+ } \
+} while (0)
+
+#define DL_LOWER_BOUND(head,elt,like,cmp) \
+ DL_LOWER_BOUND2(head,elt,like,cmp,next)
+
+#define DL_LOWER_BOUND2(head,elt,like,cmp,next) \
+do { \
+ if ((head) == NULL || (cmp(head, like)) >= 0) { \
+ (elt) = NULL; \
+ } else { \
+ for ((elt) = (head); (elt)->next != NULL; (elt) = (elt)->next) { \
+ if ((cmp((elt)->next, like)) >= 0) { \
+ break; \
+ } \
+ } \
+ } \
+} while (0)
+
+#define DL_CONCAT(head1,head2) \
+ DL_CONCAT2(head1,head2,prev,next)
+
+#define DL_CONCAT2(head1,head2,prev,next) \
+do { \
+ LDECLTYPE(head1) _tmp; \
+ if (head2) { \
+ if (head1) { \
+ UTLIST_CASTASGN(_tmp, (head2)->prev); \
+ (head2)->prev = (head1)->prev; \
+ (head1)->prev->next = (head2); \
+ UTLIST_CASTASGN((head1)->prev, _tmp); \
+ } else { \
+ (head1)=(head2); \
+ } \
+ } \
+} while (0)
+
+#define DL_DELETE(head,del) \
+ DL_DELETE2(head,del,prev,next)
+
+#define DL_DELETE2(head,del,prev,next) \
+do { \
+ assert((head) != NULL); \
+ assert((del)->prev != NULL); \
+ if ((del)->prev == (del)) { \
+ (head)=NULL; \
+ } else if ((del) == (head)) { \
+ assert((del)->next != NULL); \
+ (del)->next->prev = (del)->prev; \
+ (head) = (del)->next; \
+ } else { \
+ (del)->prev->next = (del)->next; \
+ if ((del)->next) { \
+ (del)->next->prev = (del)->prev; \
+ } else { \
+ (head)->prev = (del)->prev; \
+ } \
+ } \
+} while (0)
+
+#define DL_COUNT(head,el,counter) \
+ DL_COUNT2(head,el,counter,next) \
+
+#define DL_COUNT2(head,el,counter,next) \
+do { \
+ (counter) = 0; \
+ DL_FOREACH2(head,el,next) { ++(counter); } \
+} while (0)
+
+#define DL_FOREACH(head,el) \
+ DL_FOREACH2(head,el,next)
+
+#define DL_FOREACH2(head,el,next) \
+ for ((el) = (head); el; (el) = (el)->next)
+
+/* this version is safe for deleting the elements during iteration */
+#define DL_FOREACH_SAFE(head,el,tmp) \
+ DL_FOREACH_SAFE2(head,el,tmp,next)
+
+#define DL_FOREACH_SAFE2(head,el,tmp,next) \
+ for ((el) = (head); (el) && ((tmp) = (el)->next, 1); (el) = (tmp))
+
+/* these are identical to their singly-linked list counterparts */
+#define DL_SEARCH_SCALAR LL_SEARCH_SCALAR
+#define DL_SEARCH LL_SEARCH
+#define DL_SEARCH_SCALAR2 LL_SEARCH_SCALAR2
+#define DL_SEARCH2 LL_SEARCH2
+
+#define DL_REPLACE_ELEM2(head, el, add, prev, next) \
+do { \
+ assert((head) != NULL); \
+ assert((el) != NULL); \
+ assert((add) != NULL); \
+ if ((head) == (el)) { \
+ (head) = (add); \
+ (add)->next = (el)->next; \
+ if ((el)->next == NULL) { \
+ (add)->prev = (add); \
+ } else { \
+ (add)->prev = (el)->prev; \
+ (add)->next->prev = (add); \
+ } \
+ } else { \
+ (add)->next = (el)->next; \
+ (add)->prev = (el)->prev; \
+ (add)->prev->next = (add); \
+ if ((el)->next == NULL) { \
+ (head)->prev = (add); \
+ } else { \
+ (add)->next->prev = (add); \
+ } \
+ } \
+} while (0)
+
+#define DL_REPLACE_ELEM(head, el, add) \
+ DL_REPLACE_ELEM2(head, el, add, prev, next)
+
+#define DL_PREPEND_ELEM2(head, el, add, prev, next) \
+do { \
+ if (el) { \
+ assert((head) != NULL); \
+ assert((add) != NULL); \
+ (add)->next = (el); \
+ (add)->prev = (el)->prev; \
+ (el)->prev = (add); \
+ if ((head) == (el)) { \
+ (head) = (add); \
+ } else { \
+ (add)->prev->next = (add); \
+ } \
+ } else { \
+ DL_APPEND2(head, add, prev, next); \
+ } \
+} while (0) \
+
+#define DL_PREPEND_ELEM(head, el, add) \
+ DL_PREPEND_ELEM2(head, el, add, prev, next)
+
+#define DL_APPEND_ELEM2(head, el, add, prev, next) \
+do { \
+ if (el) { \
+ assert((head) != NULL); \
+ assert((add) != NULL); \
+ (add)->next = (el)->next; \
+ (add)->prev = (el); \
+ (el)->next = (add); \
+ if ((add)->next) { \
+ (add)->next->prev = (add); \
+ } else { \
+ (head)->prev = (add); \
+ } \
+ } else { \
+ DL_PREPEND2(head, add, prev, next); \
+ } \
+} while (0) \
+
+#define DL_APPEND_ELEM(head, el, add) \
+ DL_APPEND_ELEM2(head, el, add, prev, next)
+
+#ifdef NO_DECLTYPE
+/* Here are VS2008 / NO_DECLTYPE replacements for a few functions */
+
+#undef DL_INSERT_INORDER2
+#define DL_INSERT_INORDER2(head,add,cmp,prev,next) \
+do { \
+ if ((head) == NULL) { \
+ (add)->prev = (add); \
+ (add)->next = NULL; \
+ (head) = (add); \
+ } else if ((cmp(head, add)) >= 0) { \
+ (add)->prev = (head)->prev; \
+ (add)->next = (head); \
+ (head)->prev = (add); \
+ (head) = (add); \
+ } else { \
+ char *_tmp = (char*)(head); \
+ while ((head)->next && (cmp((head)->next, add)) < 0) { \
+ (head) = (head)->next; \
+ } \
+ (add)->prev = (head); \
+ (add)->next = (head)->next; \
+ (head)->next = (add); \
+ UTLIST_RS(head); \
+ if ((add)->next) { \
+ (add)->next->prev = (add); \
+ } else { \
+ (head)->prev = (add); \
+ } \
+ } \
+} while (0)
+#endif /* NO_DECLTYPE */
+
+/******************************************************************************
+ * circular doubly linked list macros *
+ *****************************************************************************/
+#define CDL_APPEND(head,add) \
+ CDL_APPEND2(head,add,prev,next)
+
+#define CDL_APPEND2(head,add,prev,next) \
+do { \
+ if (head) { \
+ (add)->prev = (head)->prev; \
+ (add)->next = (head); \
+ (head)->prev = (add); \
+ (add)->prev->next = (add); \
+ } else { \
+ (add)->prev = (add); \
+ (add)->next = (add); \
+ (head) = (add); \
+ } \
+} while (0)
+
+#define CDL_PREPEND(head,add) \
+ CDL_PREPEND2(head,add,prev,next)
+
+#define CDL_PREPEND2(head,add,prev,next) \
+do { \
+ if (head) { \
+ (add)->prev = (head)->prev; \
+ (add)->next = (head); \
+ (head)->prev = (add); \
+ (add)->prev->next = (add); \
+ } else { \
+ (add)->prev = (add); \
+ (add)->next = (add); \
+ } \
+ (head) = (add); \
+} while (0)
+
+#define CDL_INSERT_INORDER(head,add,cmp) \
+ CDL_INSERT_INORDER2(head,add,cmp,prev,next)
+
+#define CDL_INSERT_INORDER2(head,add,cmp,prev,next) \
+do { \
+ LDECLTYPE(head) _tmp; \
+ if (head) { \
+ CDL_LOWER_BOUND2(head, _tmp, add, cmp, next); \
+ CDL_APPEND_ELEM2(head, _tmp, add, prev, next); \
+ } else { \
+ (head) = (add); \
+ (head)->next = (head); \
+ (head)->prev = (head); \
+ } \
+} while (0)
+
+#define CDL_LOWER_BOUND(head,elt,like,cmp) \
+ CDL_LOWER_BOUND2(head,elt,like,cmp,next)
+
+#define CDL_LOWER_BOUND2(head,elt,like,cmp,next) \
+do { \
+ if ((head) == NULL || (cmp(head, like)) >= 0) { \
+ (elt) = NULL; \
+ } else { \
+ for ((elt) = (head); (elt)->next != (head); (elt) = (elt)->next) { \
+ if ((cmp((elt)->next, like)) >= 0) { \
+ break; \
+ } \
+ } \
+ } \
+} while (0)
+
+#define CDL_DELETE(head,del) \
+ CDL_DELETE2(head,del,prev,next)
+
+#define CDL_DELETE2(head,del,prev,next) \
+do { \
+ if (((head)==(del)) && ((head)->next == (head))) { \
+ (head) = NULL; \
+ } else { \
+ (del)->next->prev = (del)->prev; \
+ (del)->prev->next = (del)->next; \
+ if ((del) == (head)) (head)=(del)->next; \
+ } \
+} while (0)
+
+#define CDL_COUNT(head,el,counter) \
+ CDL_COUNT2(head,el,counter,next) \
+
+#define CDL_COUNT2(head, el, counter,next) \
+do { \
+ (counter) = 0; \
+ CDL_FOREACH2(head,el,next) { ++(counter); } \
+} while (0)
+
+#define CDL_FOREACH(head,el) \
+ CDL_FOREACH2(head,el,next)
+
+#define CDL_FOREACH2(head,el,next) \
+ for ((el)=(head);el;(el)=(((el)->next==(head)) ? NULL : (el)->next))
+
+#define CDL_FOREACH_SAFE(head,el,tmp1,tmp2) \
+ CDL_FOREACH_SAFE2(head,el,tmp1,tmp2,prev,next)
+
+#define CDL_FOREACH_SAFE2(head,el,tmp1,tmp2,prev,next) \
+ for ((el) = (head), (tmp1) = (head) ? (head)->prev : NULL; \
+ (el) && ((tmp2) = (el)->next, 1); \
+ (el) = ((el) == (tmp1) ? NULL : (tmp2)))
+
+#define CDL_SEARCH_SCALAR(head,out,field,val) \
+ CDL_SEARCH_SCALAR2(head,out,field,val,next)
+
+#define CDL_SEARCH_SCALAR2(head,out,field,val,next) \
+do { \
+ CDL_FOREACH2(head,out,next) { \
+ if ((out)->field == (val)) break; \
+ } \
+} while (0)
+
+#define CDL_SEARCH(head,out,elt,cmp) \
+ CDL_SEARCH2(head,out,elt,cmp,next)
+
+#define CDL_SEARCH2(head,out,elt,cmp,next) \
+do { \
+ CDL_FOREACH2(head,out,next) { \
+ if ((cmp(out,elt))==0) break; \
+ } \
+} while (0)
+
+#define CDL_REPLACE_ELEM2(head, el, add, prev, next) \
+do { \
+ assert((head) != NULL); \
+ assert((el) != NULL); \
+ assert((add) != NULL); \
+ if ((el)->next == (el)) { \
+ (add)->next = (add); \
+ (add)->prev = (add); \
+ (head) = (add); \
+ } else { \
+ (add)->next = (el)->next; \
+ (add)->prev = (el)->prev; \
+ (add)->next->prev = (add); \
+ (add)->prev->next = (add); \
+ if ((head) == (el)) { \
+ (head) = (add); \
+ } \
+ } \
+} while (0)
+
+#define CDL_REPLACE_ELEM(head, el, add) \
+ CDL_REPLACE_ELEM2(head, el, add, prev, next)
+
+#define CDL_PREPEND_ELEM2(head, el, add, prev, next) \
+do { \
+ if (el) { \
+ assert((head) != NULL); \
+ assert((add) != NULL); \
+ (add)->next = (el); \
+ (add)->prev = (el)->prev; \
+ (el)->prev = (add); \
+ (add)->prev->next = (add); \
+ if ((head) == (el)) { \
+ (head) = (add); \
+ } \
+ } else { \
+ CDL_APPEND2(head, add, prev, next); \
+ } \
+} while (0)
+
+#define CDL_PREPEND_ELEM(head, el, add) \
+ CDL_PREPEND_ELEM2(head, el, add, prev, next)
+
+#define CDL_APPEND_ELEM2(head, el, add, prev, next) \
+do { \
+ if (el) { \
+ assert((head) != NULL); \
+ assert((add) != NULL); \
+ (add)->next = (el)->next; \
+ (add)->prev = (el); \
+ (el)->next = (add); \
+ (add)->next->prev = (add); \
+ } else { \
+ CDL_PREPEND2(head, add, prev, next); \
+ } \
+} while (0)
+
+#define CDL_APPEND_ELEM(head, el, add) \
+ CDL_APPEND_ELEM2(head, el, add, prev, next)
+
+#ifdef NO_DECLTYPE
+/* Here are VS2008 / NO_DECLTYPE replacements for a few functions */
+
+#undef CDL_INSERT_INORDER2
+#define CDL_INSERT_INORDER2(head,add,cmp,prev,next) \
+do { \
+ if ((head) == NULL) { \
+ (add)->prev = (add); \
+ (add)->next = (add); \
+ (head) = (add); \
+ } else if ((cmp(head, add)) >= 0) { \
+ (add)->prev = (head)->prev; \
+ (add)->next = (head); \
+ (add)->prev->next = (add); \
+ (head)->prev = (add); \
+ (head) = (add); \
+ } else { \
+ char *_tmp = (char*)(head); \
+ while ((char*)(head)->next != _tmp && (cmp((head)->next, add)) < 0) { \
+ (head) = (head)->next; \
+ } \
+ (add)->prev = (head); \
+ (add)->next = (head)->next; \
+ (add)->next->prev = (add); \
+ (head)->next = (add); \
+ UTLIST_RS(head); \
+ } \
+} while (0)
+#endif /* NO_DECLTYPE */
+
+#endif /* UTLIST_H */
diff --git a/lib/uthash/src/utringbuffer.h b/lib/uthash/src/utringbuffer.h
new file mode 100644
index 0000000..6034117
--- /dev/null
+++ b/lib/uthash/src/utringbuffer.h
@@ -0,0 +1,108 @@
+/*
+Copyright (c) 2015-2022, Troy D. Hanson https://troydhanson.github.io/uthash/
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+/* a ring-buffer implementation using macros
+ */
+#ifndef UTRINGBUFFER_H
+#define UTRINGBUFFER_H
+
+#define UTRINGBUFFER_VERSION 2.3.0
+
+#include <stdlib.h>
+#include <string.h>
+#include "utarray.h" // for "UT_icd"
+
+typedef struct {
+ unsigned i; /* index of next available slot; wraps at n */
+ unsigned n; /* capacity */
+ unsigned char f; /* full */
+ UT_icd icd; /* initializer, copy and destructor functions */
+ char *d; /* n slots of size icd->sz */
+} UT_ringbuffer;
+
+#define utringbuffer_init(a, _n, _icd) do { \
+ memset(a, 0, sizeof(UT_ringbuffer)); \
+ (a)->icd = *(_icd); \
+ (a)->n = (_n); \
+ if ((a)->n) { (a)->d = (char*)malloc((a)->n * (_icd)->sz); } \
+} while(0)
+
+#define utringbuffer_clear(a) do { \
+ if ((a)->icd.dtor) { \
+ if ((a)->f) { \
+ unsigned _ut_i; \
+ for (_ut_i = 0; _ut_i < (a)->n; ++_ut_i) { \
+ (a)->icd.dtor(utringbuffer_eltptr(a, _ut_i)); \
+ } \
+ } else { \
+ unsigned _ut_i; \
+ for (_ut_i = 0; _ut_i < (a)->i; ++_ut_i) { \
+ (a)->icd.dtor(utringbuffer_eltptr(a, _ut_i)); \
+ } \
+ } \
+ } \
+ (a)->i = 0; \
+ (a)->f = 0; \
+} while(0)
+
+#define utringbuffer_done(a) do { \
+ utringbuffer_clear(a); \
+ free((a)->d); (a)->d = NULL; \
+ (a)->n = 0; \
+} while(0)
+
+#define utringbuffer_new(a,n,_icd) do { \
+ a = (UT_ringbuffer*)malloc(sizeof(UT_ringbuffer)); \
+ utringbuffer_init(a, n, _icd); \
+} while(0)
+
+#define utringbuffer_free(a) do { \
+ utringbuffer_done(a); \
+ free(a); \
+} while(0)
+
+#define utringbuffer_push_back(a,p) do { \
+ if ((a)->icd.dtor && (a)->f) { (a)->icd.dtor(_utringbuffer_internalptr(a,(a)->i)); } \
+ if ((a)->icd.copy) { (a)->icd.copy( _utringbuffer_internalptr(a,(a)->i), p); } \
+ else { memcpy(_utringbuffer_internalptr(a,(a)->i), p, (a)->icd.sz); }; \
+ if (++(a)->i == (a)->n) { (a)->i = 0; (a)->f = 1; } \
+} while(0)
+
+#define utringbuffer_len(a) ((a)->f ? (a)->n : (a)->i)
+#define utringbuffer_empty(a) ((a)->i == 0 && !(a)->f)
+#define utringbuffer_full(a) ((a)->f != 0)
+
+#define _utringbuffer_real_idx(a,j) ((a)->f ? ((j) + (a)->i) % (a)->n : (j))
+#define _utringbuffer_internalptr(a,j) ((void*)((a)->d + ((a)->icd.sz * (j))))
+#define utringbuffer_eltptr(a,j) ((0 <= (j) && (j) < utringbuffer_len(a)) ? _utringbuffer_internalptr(a,_utringbuffer_real_idx(a,j)) : NULL)
+
+#define _utringbuffer_fake_idx(a,j) ((a)->f ? ((j) + (a)->n - (a)->i) % (a)->n : (j))
+#define _utringbuffer_internalidx(a,e) (((char*)(e) >= (a)->d) ? (((char*)(e) - (a)->d)/(a)->icd.sz) : -1)
+#define utringbuffer_eltidx(a,e) _utringbuffer_fake_idx(a, _utringbuffer_internalidx(a,e))
+
+#define utringbuffer_front(a) utringbuffer_eltptr(a,0)
+#define utringbuffer_next(a,e) ((e)==NULL ? utringbuffer_front(a) : utringbuffer_eltptr(a, utringbuffer_eltidx(a,e)+1))
+#define utringbuffer_prev(a,e) ((e)==NULL ? utringbuffer_back(a) : utringbuffer_eltptr(a, utringbuffer_eltidx(a,e)-1))
+#define utringbuffer_back(a) (utringbuffer_empty(a) ? NULL : utringbuffer_eltptr(a, utringbuffer_len(a) - 1))
+
+#endif /* UTRINGBUFFER_H */
diff --git a/lib/uthash/src/utstack.h b/lib/uthash/src/utstack.h
new file mode 100644
index 0000000..94b8c51
--- /dev/null
+++ b/lib/uthash/src/utstack.h
@@ -0,0 +1,88 @@
+/*
+Copyright (c) 2018-2022, Troy D. Hanson https://troydhanson.github.io/uthash/
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef UTSTACK_H
+#define UTSTACK_H
+
+#define UTSTACK_VERSION 2.3.0
+
+/*
+ * This file contains macros to manipulate a singly-linked list as a stack.
+ *
+ * To use utstack, your structure must have a "next" pointer.
+ *
+ * ----------------.EXAMPLE -------------------------
+ * struct item {
+ * int id;
+ * struct item *next;
+ * };
+ *
+ * struct item *stack = NULL;
+ *
+ * int main() {
+ * int count;
+ * struct item *tmp;
+ * struct item *item = malloc(sizeof *item);
+ * item->id = 42;
+ * STACK_COUNT(stack, tmp, count); assert(count == 0);
+ * STACK_PUSH(stack, item);
+ * STACK_COUNT(stack, tmp, count); assert(count == 1);
+ * STACK_POP(stack, item);
+ * free(item);
+ * STACK_COUNT(stack, tmp, count); assert(count == 0);
+ * }
+ * --------------------------------------------------
+ */
+
+#define STACK_TOP(head) (head)
+
+#define STACK_EMPTY(head) (!(head))
+
+#define STACK_PUSH(head,add) \
+ STACK_PUSH2(head,add,next)
+
+#define STACK_PUSH2(head,add,next) \
+do { \
+ (add)->next = (head); \
+ (head) = (add); \
+} while (0)
+
+#define STACK_POP(head,result) \
+ STACK_POP2(head,result,next)
+
+#define STACK_POP2(head,result,next) \
+do { \
+ (result) = (head); \
+ (head) = (head)->next; \
+} while (0)
+
+#define STACK_COUNT(head,el,counter) \
+ STACK_COUNT2(head,el,counter,next) \
+
+#define STACK_COUNT2(head,el,counter,next) \
+do { \
+ (counter) = 0; \
+ for ((el) = (head); el; (el) = (el)->next) { ++(counter); } \
+} while (0)
+
+#endif /* UTSTACK_H */
diff --git a/lib/uthash/src/utstring.h b/lib/uthash/src/utstring.h
new file mode 100644
index 0000000..f0270fb
--- /dev/null
+++ b/lib/uthash/src/utstring.h
@@ -0,0 +1,407 @@
+/*
+Copyright (c) 2008-2022, Troy D. Hanson https://troydhanson.github.io/uthash/
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+/* a dynamic string implementation using macros
+ */
+#ifndef UTSTRING_H
+#define UTSTRING_H
+
+#define UTSTRING_VERSION 2.3.0
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdarg.h>
+
+#ifdef __GNUC__
+#define UTSTRING_UNUSED __attribute__((__unused__))
+#else
+#define UTSTRING_UNUSED
+#endif
+
+#ifdef oom
+#error "The name of macro 'oom' has been changed to 'utstring_oom'. Please update your code."
+#define utstring_oom() oom()
+#endif
+
+#ifndef utstring_oom
+#define utstring_oom() exit(-1)
+#endif
+
+typedef struct {
+ char *d; /* pointer to allocated buffer */
+ size_t n; /* allocated capacity */
+ size_t i; /* index of first unused byte */
+} UT_string;
+
+#define utstring_reserve(s,amt) \
+do { \
+ if (((s)->n - (s)->i) < (size_t)(amt)) { \
+ char *utstring_tmp = (char*)realloc( \
+ (s)->d, (s)->n + (amt)); \
+ if (!utstring_tmp) { \
+ utstring_oom(); \
+ } \
+ (s)->d = utstring_tmp; \
+ (s)->n += (amt); \
+ } \
+} while(0)
+
+#define utstring_init(s) \
+do { \
+ (s)->n = 0; (s)->i = 0; (s)->d = NULL; \
+ utstring_reserve(s,100); \
+ (s)->d[0] = '\0'; \
+} while(0)
+
+#define utstring_done(s) \
+do { \
+ if ((s)->d != NULL) free((s)->d); \
+ (s)->n = 0; \
+} while(0)
+
+#define utstring_free(s) \
+do { \
+ utstring_done(s); \
+ free(s); \
+} while(0)
+
+#define utstring_new(s) \
+do { \
+ (s) = (UT_string*)malloc(sizeof(UT_string)); \
+ if (!(s)) { \
+ utstring_oom(); \
+ } \
+ utstring_init(s); \
+} while(0)
+
+#define utstring_renew(s) \
+do { \
+ if (s) { \
+ utstring_clear(s); \
+ } else { \
+ utstring_new(s); \
+ } \
+} while(0)
+
+#define utstring_clear(s) \
+do { \
+ (s)->i = 0; \
+ (s)->d[0] = '\0'; \
+} while(0)
+
+#define utstring_bincpy(s,b,l) \
+do { \
+ utstring_reserve((s),(l)+1); \
+ if (l) memcpy(&(s)->d[(s)->i], b, l); \
+ (s)->i += (l); \
+ (s)->d[(s)->i]='\0'; \
+} while(0)
+
+#define utstring_concat(dst,src) \
+do { \
+ utstring_reserve((dst),((src)->i)+1); \
+ if ((src)->i) memcpy(&(dst)->d[(dst)->i], (src)->d, (src)->i); \
+ (dst)->i += (src)->i; \
+ (dst)->d[(dst)->i]='\0'; \
+} while(0)
+
+#define utstring_len(s) ((s)->i)
+
+#define utstring_body(s) ((s)->d)
+
+UTSTRING_UNUSED static void utstring_printf_va(UT_string *s, const char *fmt, va_list ap) {
+ int n;
+ va_list cp;
+ for (;;) {
+#ifdef _WIN32
+ cp = ap;
+#else
+ va_copy(cp, ap);
+#endif
+ n = vsnprintf (&s->d[s->i], s->n-s->i, fmt, cp);
+ va_end(cp);
+
+ if ((n > -1) && ((size_t) n < (s->n-s->i))) {
+ s->i += n;
+ return;
+ }
+
+ /* Else try again with more space. */
+ if (n > -1) utstring_reserve(s,n+1); /* exact */
+ else utstring_reserve(s,(s->n)*2); /* 2x */
+ }
+}
+#ifdef __GNUC__
+/* support printf format checking (2=the format string, 3=start of varargs) */
+static void utstring_printf(UT_string *s, const char *fmt, ...)
+ __attribute__ (( format( printf, 2, 3) ));
+#endif
+UTSTRING_UNUSED static void utstring_printf(UT_string *s, const char *fmt, ...) {
+ va_list ap;
+ va_start(ap,fmt);
+ utstring_printf_va(s,fmt,ap);
+ va_end(ap);
+}
+
+/*******************************************************************************
+ * begin substring search functions *
+ ******************************************************************************/
+/* Build KMP table from left to right. */
+UTSTRING_UNUSED static void _utstring_BuildTable(
+ const char *P_Needle,
+ size_t P_NeedleLen,
+ long *P_KMP_Table)
+{
+ long i, j;
+
+ i = 0;
+ j = i - 1;
+ P_KMP_Table[i] = j;
+ while (i < (long) P_NeedleLen)
+ {
+ while ( (j > -1) && (P_Needle[i] != P_Needle[j]) )
+ {
+ j = P_KMP_Table[j];
+ }
+ i++;
+ j++;
+ if (i < (long) P_NeedleLen)
+ {
+ if (P_Needle[i] == P_Needle[j])
+ {
+ P_KMP_Table[i] = P_KMP_Table[j];
+ }
+ else
+ {
+ P_KMP_Table[i] = j;
+ }
+ }
+ else
+ {
+ P_KMP_Table[i] = j;
+ }
+ }
+
+ return;
+}
+
+
+/* Build KMP table from right to left. */
+UTSTRING_UNUSED static void _utstring_BuildTableR(
+ const char *P_Needle,
+ size_t P_NeedleLen,
+ long *P_KMP_Table)
+{
+ long i, j;
+
+ i = P_NeedleLen - 1;
+ j = i + 1;
+ P_KMP_Table[i + 1] = j;
+ while (i >= 0)
+ {
+ while ( (j < (long) P_NeedleLen) && (P_Needle[i] != P_Needle[j]) )
+ {
+ j = P_KMP_Table[j + 1];
+ }
+ i--;
+ j--;
+ if (i >= 0)
+ {
+ if (P_Needle[i] == P_Needle[j])
+ {
+ P_KMP_Table[i + 1] = P_KMP_Table[j + 1];
+ }
+ else
+ {
+ P_KMP_Table[i + 1] = j;
+ }
+ }
+ else
+ {
+ P_KMP_Table[i + 1] = j;
+ }
+ }
+
+ return;
+}
+
+
+/* Search data from left to right. ( Multiple search mode. ) */
+UTSTRING_UNUSED static long _utstring_find(
+ const char *P_Haystack,
+ size_t P_HaystackLen,
+ const char *P_Needle,
+ size_t P_NeedleLen,
+ long *P_KMP_Table)
+{
+ long i, j;
+ long V_FindPosition = -1;
+
+ /* Search from left to right. */
+ i = j = 0;
+ while ( (j < (int)P_HaystackLen) && (((P_HaystackLen - j) + i) >= P_NeedleLen) )
+ {
+ while ( (i > -1) && (P_Needle[i] != P_Haystack[j]) )
+ {
+ i = P_KMP_Table[i];
+ }
+ i++;
+ j++;
+ if (i >= (int)P_NeedleLen)
+ {
+ /* Found. */
+ V_FindPosition = j - i;
+ break;
+ }
+ }
+
+ return V_FindPosition;
+}
+
+
+/* Search data from right to left. ( Multiple search mode. ) */
+UTSTRING_UNUSED static long _utstring_findR(
+ const char *P_Haystack,
+ size_t P_HaystackLen,
+ const char *P_Needle,
+ size_t P_NeedleLen,
+ long *P_KMP_Table)
+{
+ long i, j;
+ long V_FindPosition = -1;
+
+ /* Search from right to left. */
+ j = (P_HaystackLen - 1);
+ i = (P_NeedleLen - 1);
+ while ( (j >= 0) && (j >= i) )
+ {
+ while ( (i < (int)P_NeedleLen) && (P_Needle[i] != P_Haystack[j]) )
+ {
+ i = P_KMP_Table[i + 1];
+ }
+ i--;
+ j--;
+ if (i < 0)
+ {
+ /* Found. */
+ V_FindPosition = j + 1;
+ break;
+ }
+ }
+
+ return V_FindPosition;
+}
+
+
+/* Search data from left to right. ( One time search mode. ) */
+UTSTRING_UNUSED static long utstring_find(
+ UT_string *s,
+ long P_StartPosition, /* Start from 0. -1 means last position. */
+ const char *P_Needle,
+ size_t P_NeedleLen)
+{
+ long V_StartPosition;
+ long V_HaystackLen;
+ long *V_KMP_Table;
+ long V_FindPosition = -1;
+
+ if (P_StartPosition < 0)
+ {
+ V_StartPosition = s->i + P_StartPosition;
+ }
+ else
+ {
+ V_StartPosition = P_StartPosition;
+ }
+ V_HaystackLen = s->i - V_StartPosition;
+ if ( (V_HaystackLen >= (long) P_NeedleLen) && (P_NeedleLen > 0) )
+ {
+ V_KMP_Table = (long *)malloc(sizeof(long) * (P_NeedleLen + 1));
+ if (V_KMP_Table != NULL)
+ {
+ _utstring_BuildTable(P_Needle, P_NeedleLen, V_KMP_Table);
+
+ V_FindPosition = _utstring_find(s->d + V_StartPosition,
+ V_HaystackLen,
+ P_Needle,
+ P_NeedleLen,
+ V_KMP_Table);
+ if (V_FindPosition >= 0)
+ {
+ V_FindPosition += V_StartPosition;
+ }
+
+ free(V_KMP_Table);
+ }
+ }
+
+ return V_FindPosition;
+}
+
+
+/* Search data from right to left. ( One time search mode. ) */
+UTSTRING_UNUSED static long utstring_findR(
+ UT_string *s,
+ long P_StartPosition, /* Start from 0. -1 means last position. */
+ const char *P_Needle,
+ size_t P_NeedleLen)
+{
+ long V_StartPosition;
+ long V_HaystackLen;
+ long *V_KMP_Table;
+ long V_FindPosition = -1;
+
+ if (P_StartPosition < 0)
+ {
+ V_StartPosition = s->i + P_StartPosition;
+ }
+ else
+ {
+ V_StartPosition = P_StartPosition;
+ }
+ V_HaystackLen = V_StartPosition + 1;
+ if ( (V_HaystackLen >= (long) P_NeedleLen) && (P_NeedleLen > 0) )
+ {
+ V_KMP_Table = (long *)malloc(sizeof(long) * (P_NeedleLen + 1));
+ if (V_KMP_Table != NULL)
+ {
+ _utstring_BuildTableR(P_Needle, P_NeedleLen, V_KMP_Table);
+
+ V_FindPosition = _utstring_findR(s->d,
+ V_HaystackLen,
+ P_Needle,
+ P_NeedleLen,
+ V_KMP_Table);
+
+ free(V_KMP_Table);
+ }
+ }
+
+ return V_FindPosition;
+}
+/*******************************************************************************
+ * end substring search functions *
+ ******************************************************************************/
+
+#endif /* UTSTRING_H */