diff options
author | Benjamin Barenblat <bbaren@mit.edu> | 2015-12-23 16:39:21 -0500 |
---|---|---|
committer | Benjamin Barenblat <bbaren@mit.edu> | 2015-12-23 17:10:15 -0500 |
commit | f5208fb885b4c036ce6551fae41efc99789703fa (patch) | |
tree | ffc859dba65abd2cc2b8a00815242820005173f1 | |
parent | cc2e7530f99ccffcd81625fb71c6de5395583d6f (diff) |
Devendor uthash
-rw-r--r-- | debian/control | 4 | ||||
-rw-r--r-- | debian/patches/series | 1 | ||||
-rw-r--r-- | debian/patches/use-system-uthash.diff | 993 | ||||
-rw-r--r-- | debian/urweb.links | 1 |
4 files changed, 998 insertions, 1 deletions
diff --git a/debian/control b/debian/control index 9b19d499..3e1158f0 100644 --- a/debian/control +++ b/debian/control @@ -12,7 +12,8 @@ Build-Depends: libsqlite3-dev, libssl-dev, mlton, - sqlite3 + sqlite3, + uthash-dev Build-Depends-Indep: emacs24 | emacsen, texlive-fonts-recommended, @@ -36,6 +37,7 @@ Depends: liburweb-fastcgi0, liburweb-http0, liburweb-static0, + uthash-dev, ${shlibs:Depends}, ${misc:Depends} Recommends: diff --git a/debian/patches/series b/debian/patches/series index a285d896..8bedd73d 100644 --- a/debian/patches/series +++ b/debian/patches/series @@ -1,2 +1,3 @@ harden.diff doc-letterpaper.diff +use-system-uthash.diff diff --git a/debian/patches/use-system-uthash.diff b/debian/patches/use-system-uthash.diff new file mode 100644 index 00000000..0ddc4e28 --- /dev/null +++ b/debian/patches/use-system-uthash.diff @@ -0,0 +1,993 @@ +From: Benjamin Barenblat <bbaren@mit.edu> +Subject: Use Debian’s uthash +Forwarded: no + +Remove upstream’s vendored copy of uthash. +--- a/include/urweb/types_cpp.h ++++ b/include/urweb/types_cpp.h +@@ -122,7 +122,7 @@ typedef struct { + // Caching + + #include <pthread.h> +-#include "uthash.h" ++#include <uthash.h> + + typedef struct uw_Sqlcache_Value { + char *result; +--- a/src/c/urweb.c ++++ b/src/c/urweb.c +@@ -22,7 +22,7 @@ + + #include "types.h" + +-#include "uthash.h" ++#include <uthash.h> + + uw_unit uw_unit_v = 0; + +--- a/include/urweb/uthash.h ++++ /dev/null +@@ -1,963 +0,0 @@ +-/* +-Copyright (c) 2003-2014, Troy D. Hanson http://troydhanson.github.com/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 +- +-#include <string.h> /* memcmp,strlen */ +-#include <stddef.h> /* ptrdiff_t */ +-#include <stdlib.h> /* exit() */ +- +-/* 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(_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 +-#define DECLTYPE(x) +-#endif +-#elif defined(__BORLANDC__) || defined(__LCC__) || defined(__WATCOMC__) +-#define NO_DECLTYPE +-#define DECLTYPE(x) +-#else /* GNU, Sun and other compilers */ +-#define DECLTYPE(x) (__typeof(x)) +-#endif +- +-#ifdef NO_DECLTYPE +-#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 +- +-/* a number of the hash function use uint32_t which isn't defined on Pre VS2010 */ +-#if defined (_WIN32) +-#if defined(_MSC_VER) && _MSC_VER >= 1600 +-#include <stdint.h> +-#elif defined(__WATCOMC__) +-#include <stdint.h> +-#else +-typedef unsigned int uint32_t; +-typedef unsigned char uint8_t; +-#endif +-#else +-#include <stdint.h> +-#endif +- +-#define UTHASH_VERSION 1.9.9 +- +-#ifndef uthash_fatal +-#define uthash_fatal(msg) exit(-1) /* fatal error (out of memory,etc) */ +-#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_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 +- +-/* 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 hhe */ +-#define ELMT_FROM_HH(tbl,hhp) ((void*)(((char*)(hhp)) - ((tbl)->hho))) +- +-#define HASH_FIND(hh,head,keyptr,keylen,out) \ +-do { \ +- out=NULL; \ +- if (head != NULL) { \ +- unsigned _hf_bkt,_hf_hashv; \ +- HASH_FCN(keyptr,keylen, (head)->hh.tbl->num_buckets, _hf_hashv, _hf_bkt); \ +- if (HASH_BLOOM_TEST((head)->hh.tbl, _hf_hashv) != 0) { \ +- HASH_FIND_IN_BKT((head)->hh.tbl, hh, (head)->hh.tbl->buckets[ _hf_bkt ], \ +- keyptr,keylen,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) \ +-do { \ +- (tbl)->bloom_nbits = HASH_BLOOM; \ +- (tbl)->bloom_bv = (uint8_t*)uthash_malloc(HASH_BLOOM_BYTELEN); \ +- if (!((tbl)->bloom_bv)) { uthash_fatal( "out of memory"); } \ +- memset((tbl)->bloom_bv, 0, 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)((1ULL << (tbl)->bloom_nbits) - 1U))) +- +-#define HASH_BLOOM_TEST(tbl,hashv) \ +- HASH_BLOOM_BITTEST((tbl)->bloom_bv, (hashv & (uint32_t)((1ULL << (tbl)->bloom_nbits) - 1U))) +- +-#else +-#define HASH_BLOOM_MAKE(tbl) +-#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) \ +-do { \ +- (head)->hh.tbl = (UT_hash_table*)uthash_malloc( \ +- sizeof(UT_hash_table)); \ +- if (!((head)->hh.tbl)) { uthash_fatal( "out of memory"); } \ +- memset((head)->hh.tbl, 0, 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)); \ +- if (! (head)->hh.tbl->buckets) { uthash_fatal( "out of memory"); } \ +- memset((head)->hh.tbl->buckets, 0, \ +- HASH_INITIAL_NUM_BUCKETS*sizeof(struct UT_hash_bucket)); \ +- HASH_BLOOM_MAKE((head)->hh.tbl); \ +- (head)->hh.tbl->signature = HASH_SIGNATURE; \ +-} while(0) +- +-#define HASH_ADD(hh,head,fieldname,keylen_in,add) \ +- HASH_ADD_KEYPTR(hh,head,&((add)->fieldname),keylen_in,add) +- +-#define HASH_REPLACE(hh,head,fieldname,keylen_in,add,replaced) \ +-do { \ +- replaced=NULL; \ +- HASH_FIND(hh,head,&((add)->fieldname),keylen_in,replaced); \ +- if (replaced!=NULL) { \ +- HASH_DELETE(hh,head,replaced); \ +- } \ +- HASH_ADD(hh,head,fieldname,keylen_in,add); \ +-} while(0) +- +-#define HASH_ADD_KEYPTR(hh,head,keyptr,keylen_in,add) \ +-do { \ +- unsigned _ha_bkt; \ +- (add)->hh.next = NULL; \ +- (add)->hh.key = (char*)(keyptr); \ +- (add)->hh.keylen = (unsigned)(keylen_in); \ +- if (!(head)) { \ +- head = (add); \ +- (head)->hh.prev = NULL; \ +- HASH_MAKE_TABLE(hh,head); \ +- } else { \ +- (head)->hh.tbl->tail->next = (add); \ +- (add)->hh.prev = ELMT_FROM_HH((head)->hh.tbl, (head)->hh.tbl->tail); \ +- (head)->hh.tbl->tail = &((add)->hh); \ +- } \ +- (head)->hh.tbl->num_items++; \ +- (add)->hh.tbl = (head)->hh.tbl; \ +- HASH_FCN(keyptr,keylen_in, (head)->hh.tbl->num_buckets, \ +- (add)->hh.hashv, _ha_bkt); \ +- HASH_ADD_TO_BKT((head)->hh.tbl->buckets[_ha_bkt],&(add)->hh); \ +- HASH_BLOOM_ADD((head)->hh.tbl,(add)->hh.hashv); \ +- HASH_EMIT_KEY(hh,head,keyptr,keylen_in); \ +- HASH_FSCK(hh,head); \ +-} while(0) +- +-#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) \ +-do { \ +- struct UT_hash_handle *_hd_hh_del; \ +- if ( ((delptr)->hh.prev == NULL) && ((delptr)->hh.next == NULL) ) { \ +- uthash_free((head)->hh.tbl->buckets, \ +- (head)->hh.tbl->num_buckets*sizeof(struct UT_hash_bucket) ); \ +- HASH_BLOOM_FREE((head)->hh.tbl); \ +- uthash_free((head)->hh.tbl, sizeof(UT_hash_table)); \ +- head = NULL; \ +- } else { \ +- unsigned _hd_bkt; \ +- _hd_hh_del = &((delptr)->hh); \ +- if ((delptr) == ELMT_FROM_HH((head)->hh.tbl,(head)->hh.tbl->tail)) { \ +- (head)->hh.tbl->tail = \ +- (UT_hash_handle*)((ptrdiff_t)((delptr)->hh.prev) + \ +- (head)->hh.tbl->hho); \ +- } \ +- if ((delptr)->hh.prev != NULL) { \ +- ((UT_hash_handle*)((ptrdiff_t)((delptr)->hh.prev) + \ +- (head)->hh.tbl->hho))->next = (delptr)->hh.next; \ +- } else { \ +- DECLTYPE_ASSIGN(head,(delptr)->hh.next); \ +- } \ +- if (_hd_hh_del->next != NULL) { \ +- ((UT_hash_handle*)((ptrdiff_t)_hd_hh_del->next + \ +- (head)->hh.tbl->hho))->prev = \ +- _hd_hh_del->prev; \ +- } \ +- HASH_TO_BKT( _hd_hh_del->hashv, (head)->hh.tbl->num_buckets, _hd_bkt); \ +- HASH_DEL_IN_BKT(hh,(head)->hh.tbl->buckets[_hd_bkt], _hd_hh_del); \ +- (head)->hh.tbl->num_items--; \ +- } \ +- HASH_FSCK(hh,head); \ +-} while (0) +- +- +-/* convenience forms of HASH_FIND/HASH_ADD/HASH_DEL */ +-#define HASH_FIND_STR(head,findstr,out) \ +- HASH_FIND(hh,head,findstr,(unsigned)strlen(findstr),out) +-#define HASH_ADD_STR(head,strfield,add) \ +- HASH_ADD(hh,head,strfield[0],(unsigned int)strlen(add->strfield),add) +-#define HASH_REPLACE_STR(head,strfield,add,replaced) \ +- HASH_REPLACE(hh,head,strfield[0],(unsigned)strlen(add->strfield),add,replaced) +-#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 +-#define HASH_OOPS(...) do { fprintf(stderr,__VA_ARGS__); exit(-1); } while (0) +-#define HASH_FSCK(hh,head) \ +-do { \ +- struct UT_hash_handle *_thh; \ +- if (head) { \ +- unsigned _bkt_i; \ +- unsigned _count; \ +- char *_prev; \ +- _count = 0; \ +- 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("invalid hh_prev %p, actual %p\n", \ +- _thh->hh_prev, _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("invalid bucket count %u, actual %u\n", \ +- (head)->hh.tbl->buckets[_bkt_i].count, _bkt_count); \ +- } \ +- } \ +- if (_count != (head)->hh.tbl->num_items) { \ +- HASH_OOPS("invalid hh item count %u, actual %u\n", \ +- (head)->hh.tbl->num_items, _count ); \ +- } \ +- /* traverse hh in app order; check next/prev integrity, count */ \ +- _count = 0; \ +- _prev = NULL; \ +- _thh = &(head)->hh; \ +- while (_thh) { \ +- _count++; \ +- if (_prev !=(char*)(_thh->prev)) { \ +- HASH_OOPS("invalid prev %p, actual %p\n", \ +- _thh->prev, _prev ); \ +- } \ +- _prev = (char*)ELMT_FROM_HH((head)->hh.tbl, _thh); \ +- _thh = ( _thh->next ? (UT_hash_handle*)((char*)(_thh->next) + \ +- (head)->hh.tbl->hho) : NULL ); \ +- } \ +- if (_count != (head)->hh.tbl->num_items) { \ +- HASH_OOPS("invalid app item count %u, actual %u\n", \ +- (head)->hh.tbl->num_items, _count ); \ +- } \ +- } \ +-} while (0) +-#else +-#define HASH_FSCK(hh,head) +-#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 +- +-/* default to Jenkin's hash unless overridden e.g. DHASH_FUNCTION=HASH_SAX */ +-#ifdef HASH_FUNCTION +-#define HASH_FCN HASH_FUNCTION +-#else +-#define HASH_FCN HASH_JEN +-#endif +- +-/* The Bernstein hash function, used in Perl prior to v5.6. Note (x<<5+x)=x*33. */ +-#define HASH_BER(key,keylen,num_bkts,hashv,bkt) \ +-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++; \ +- } \ +- bkt = (hashv) & (num_bkts-1U); \ +-} while (0) +- +- +-/* SAX/FNV/OAT/JEN hash functions are macro variants of those listed at +- * http://eternallyconfuzzled.com/tuts/algorithms/jsw_tut_hashing.aspx */ +-#define HASH_SAX(key,keylen,num_bkts,hashv,bkt) \ +-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]; \ +- } \ +- bkt = hashv & (num_bkts-1U); \ +-} while (0) +-/* FNV-1a variation */ +-#define HASH_FNV(key,keylen,num_bkts,hashv,bkt) \ +-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; \ +- } \ +- bkt = hashv & (num_bkts-1U); \ +-} while(0) +- +-#define HASH_OAT(key,keylen,num_bkts,hashv,bkt) \ +-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); \ +- bkt = hashv & (num_bkts-1U); \ +-} 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,num_bkts,hashv,bkt) \ +-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]; \ +- } \ +- HASH_JEN_MIX(_hj_i, _hj_j, hashv); \ +- bkt = hashv & (num_bkts-1U); \ +-} 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,num_bkts,hashv,bkt) \ +-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; \ +- } \ +- \ +- /* Force "avalanching" of final 127 bits */ \ +- hashv ^= hashv << 3; \ +- hashv += hashv >> 5; \ +- hashv ^= hashv << 4; \ +- hashv += hashv >> 17; \ +- hashv ^= hashv << 25; \ +- hashv += hashv >> 6; \ +- bkt = hashv & (num_bkts-1U); \ +-} while(0) +- +-#ifdef HASH_USING_NO_STRICT_ALIASING +-/* The MurmurHash exploits some CPU's (x86,x86_64) tolerance for unaligned reads. +- * For other types of CPU's (e.g. Sparc) an unaligned read causes a bus error. +- * MurmurHash uses the faster approach only on CPU's where we know it's safe. +- * +- * Note the preprocessor built-in defines can be emitted using: +- * +- * gcc -m64 -dM -E - < /dev/null (on gcc) +- * cc -## a.c (where a.c is a simple test file) (Sun Studio) +- */ +-#if (defined(__i386__) || defined(__x86_64__) || defined(_M_IX86)) +-#define MUR_GETBLOCK(p,i) p[i] +-#else /* non intel */ +-#define MUR_PLUS0_ALIGNED(p) (((unsigned long)p & 3UL) == 0UL) +-#define MUR_PLUS1_ALIGNED(p) (((unsigned long)p & 3UL) == 1UL) +-#define MUR_PLUS2_ALIGNED(p) (((unsigned long)p & 3UL) == 2UL) +-#define MUR_PLUS3_ALIGNED(p) (((unsigned long)p & 3UL) == 3UL) +-#define WP(p) ((uint32_t*)((unsigned long)(p) & ~3UL)) +-#if (defined(__BIG_ENDIAN__) || defined(SPARC) || defined(__ppc__) || defined(__ppc64__)) +-#define MUR_THREE_ONE(p) ((((*WP(p))&0x00ffffff) << 8) | (((*(WP(p)+1))&0xff000000) >> 24)) +-#define MUR_TWO_TWO(p) ((((*WP(p))&0x0000ffff) <<16) | (((*(WP(p)+1))&0xffff0000) >> 16)) +-#define MUR_ONE_THREE(p) ((((*WP(p))&0x000000ff) <<24) | (((*(WP(p)+1))&0xffffff00) >> 8)) +-#else /* assume little endian non-intel */ +-#define MUR_THREE_ONE(p) ((((*WP(p))&0xffffff00) >> 8) | (((*(WP(p)+1))&0x000000ff) << 24)) +-#define MUR_TWO_TWO(p) ((((*WP(p))&0xffff0000) >>16) | (((*(WP(p)+1))&0x0000ffff) << 16)) +-#define MUR_ONE_THREE(p) ((((*WP(p))&0xff000000) >>24) | (((*(WP(p)+1))&0x00ffffff) << 8)) +-#endif +-#define MUR_GETBLOCK(p,i) (MUR_PLUS0_ALIGNED(p) ? ((p)[i]) : \ +- (MUR_PLUS1_ALIGNED(p) ? MUR_THREE_ONE(p) : \ +- (MUR_PLUS2_ALIGNED(p) ? MUR_TWO_TWO(p) : \ +- MUR_ONE_THREE(p)))) +-#endif +-#define MUR_ROTL32(x,r) (((x) << (r)) | ((x) >> (32 - (r)))) +-#define MUR_FMIX(_h) \ +-do { \ +- _h ^= _h >> 16; \ +- _h *= 0x85ebca6bu; \ +- _h ^= _h >> 13; \ +- _h *= 0xc2b2ae35u; \ +- _h ^= _h >> 16; \ +-} while(0) +- +-#define HASH_MUR(key,keylen,num_bkts,hashv,bkt) \ +-do { \ +- const uint8_t *_mur_data = (const uint8_t*)(key); \ +- const int _mur_nblocks = (int)(keylen) / 4; \ +- uint32_t _mur_h1 = 0xf88D5353u; \ +- uint32_t _mur_c1 = 0xcc9e2d51u; \ +- uint32_t _mur_c2 = 0x1b873593u; \ +- uint32_t _mur_k1 = 0; \ +- const uint8_t *_mur_tail; \ +- const uint32_t *_mur_blocks = (const uint32_t*)(_mur_data+(_mur_nblocks*4)); \ +- int _mur_i; \ +- for(_mur_i = -_mur_nblocks; _mur_i!=0; _mur_i++) { \ +- _mur_k1 = MUR_GETBLOCK(_mur_blocks,_mur_i); \ +- _mur_k1 *= _mur_c1; \ +- _mur_k1 = MUR_ROTL32(_mur_k1,15); \ +- _mur_k1 *= _mur_c2; \ +- \ +- _mur_h1 ^= _mur_k1; \ +- _mur_h1 = MUR_ROTL32(_mur_h1,13); \ +- _mur_h1 = (_mur_h1*5U) + 0xe6546b64u; \ +- } \ +- _mur_tail = (const uint8_t*)(_mur_data + (_mur_nblocks*4)); \ +- _mur_k1=0; \ +- switch((keylen) & 3U) { \ +- case 3: _mur_k1 ^= (uint32_t)_mur_tail[2] << 16; /* FALLTHROUGH */ \ +- case 2: _mur_k1 ^= (uint32_t)_mur_tail[1] << 8; /* FALLTHROUGH */ \ +- case 1: _mur_k1 ^= (uint32_t)_mur_tail[0]; \ +- _mur_k1 *= _mur_c1; \ +- _mur_k1 = MUR_ROTL32(_mur_k1,15); \ +- _mur_k1 *= _mur_c2; \ +- _mur_h1 ^= _mur_k1; \ +- } \ +- _mur_h1 ^= (uint32_t)(keylen); \ +- MUR_FMIX(_mur_h1); \ +- hashv = _mur_h1; \ +- bkt = hashv & (num_bkts-1U); \ +-} while(0) +-#endif /* HASH_USING_NO_STRICT_ALIASING */ +- +-/* key comparison function; return 0 if keys equal */ +-#define HASH_KEYCMP(a,b,len) memcmp(a,b,(unsigned long)(len)) +- +-/* iterate over items in a known bucket to find desired item */ +-#define HASH_FIND_IN_BKT(tbl,hh,head,keyptr,keylen_in,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.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,addhh) \ +-do { \ +- head.count++; \ +- (addhh)->hh_next = head.hh_head; \ +- (addhh)->hh_prev = NULL; \ +- if (head.hh_head != NULL) { (head).hh_head->hh_prev = (addhh); } \ +- (head).hh_head=addhh; \ +- if ((head.count >= ((head.expand_mult+1U) * HASH_BKT_CAPACITY_THRESH)) \ +- && ((addhh)->tbl->noexpand != 1U)) { \ +- HASH_EXPAND_BUCKETS((addhh)->tbl); \ +- } \ +-} while(0) +- +-/* remove an item from a given bucket */ +-#define HASH_DEL_IN_BKT(hh,head,hh_del) \ +- (head).count--; \ +- if ((head).hh_head == hh_del) { \ +- (head).hh_head = hh_del->hh_next; \ +- } \ +- if (hh_del->hh_prev) { \ +- hh_del->hh_prev->hh_next = hh_del->hh_next; \ +- } \ +- if (hh_del->hh_next) { \ +- hh_del->hh_next->hh_prev = hh_del->hh_prev; \ +- } +- +-/* 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(tbl) \ +-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( \ +- 2UL * tbl->num_buckets * sizeof(struct UT_hash_bucket)); \ +- if (!_he_new_buckets) { uthash_fatal( "out of memory"); } \ +- memset(_he_new_buckets, 0, \ +- 2UL * tbl->num_buckets * sizeof(struct UT_hash_bucket)); \ +- 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++; \ +- _he_newbkt->expand_mult = _he_newbkt->count / \ +- tbl->ideal_chain_maxlen; \ +- } \ +- _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 = (UT_hash_handle*)((_hs_q->next != NULL) ? \ +- ((void*)((char*)(_hs_q->next) + \ +- (head)->hh.tbl->hho)) : NULL); \ +- if (! (_hs_q) ) { 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 = (UT_hash_handle*)((_hs_q->next != NULL) ? \ +- ((void*)((char*)(_hs_q->next) + \ +- (head)->hh.tbl->hho)) : NULL); \ +- _hs_qsize--; \ +- } else if ( (_hs_qsize == 0U) || (_hs_q == NULL) ) { \ +- _hs_e = _hs_p; \ +- if (_hs_p != NULL){ \ +- _hs_p = (UT_hash_handle*)((_hs_p->next != NULL) ? \ +- ((void*)((char*)(_hs_p->next) + \ +- (head)->hh.tbl->hho)) : 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 = (UT_hash_handle*)((_hs_p->next != NULL) ? \ +- ((void*)((char*)(_hs_p->next) + \ +- (head)->hh.tbl->hho)) : NULL); \ +- } \ +- _hs_psize--; \ +- } else { \ +- _hs_e = _hs_q; \ +- _hs_q = (UT_hash_handle*)((_hs_q->next != NULL) ? \ +- ((void*)((char*)(_hs_q->next) + \ +- (head)->hh.tbl->hho)) : 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); \ +- } \ +-} 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)) { \ +- _dst_hh = (UT_hash_handle*)(((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); \ +- } 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],_dst_hh); \ +- (dst)->hh_dst.tbl->num_items++; \ +- _last_elt = _elt; \ +- _last_elt_hh = _dst_hh; \ +- } \ +- } \ +- } \ +- } \ +- HASH_FSCK(hh_dst,dst); \ +-} while (0) +- +-#define HASH_CLEAR(hh,head) \ +-do { \ +- if (head != NULL) { \ +- uthash_free((head)->hh.tbl->buckets, \ +- (head)->hh.tbl->num_buckets*sizeof(struct UT_hash_bucket)); \ +- HASH_BLOOM_FREE((head)->hh.tbl); \ +- 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 */ +- 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/debian/urweb.links b/debian/urweb.links new file mode 100644 index 00000000..ef515f25 --- /dev/null +++ b/debian/urweb.links @@ -0,0 +1 @@ +usr/include/uthash.h usr/include/urweb/uthash.h |