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97 lines
1.9 KiB
C
97 lines
1.9 KiB
C
/*
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* Secure Network Transport Layer Library implementation.
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* This is a proprietary software. See COPYING for further details.
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*
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* (c) 2013-2014 Copyright Askele, inc. <http://askele.com>
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* (c) 2013-2014 Copyright Askele Ingria, inc. <http://askele-ingria.com>
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <errno.h>
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#include <string.h>
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#include <pthread.h>
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#include <sys/stat.h>
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#include <sys/time.h>
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#include <sys/types.h>
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// #include <sys/mman.h>
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#ifdef WIN32
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#include <Winsock2.h>
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#else
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#include <unistd.h>
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#endif
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#include <fcntl.h>
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#include <tdata/usrtc.h>
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#include <sntl/mcache.h>
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static long __cmp_longs(const void *a, const void *b)
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{
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return (long)(*(unsigned long*)a - *(unsigned long*)b);
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}
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int sntl_mcache_init(sntl_mcache_t *mc, size_t esize, int flags)
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{
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int r = 0, i;
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usrtc_t *tree;
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void *pt;
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struct _mpg *pg;
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/* check it */
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if((esize < _MCACHE_EMINSIZE) || (esize > _MCACHE_EMAXSIZE)) return EINVAL;
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/* yep, nil it */
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memset(mc, 0, sizeof(sntl_mcache_t));
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mc->magic = _MCACHE_MAGIC; /* let it be */
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if((r = pthread_rwlock_init(&(mc->lock), NULL))) return -r;
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/* init trees */
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for(i = 0; i < 3; i ++) {
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switch(i) {
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case 0: tree = &(mc->pg_tree); break;
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case 1: tree = &(mc->allocated); break;
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case 2: tree = &(mc->used); break;
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}
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usrtc_init(tree, USRTC_REDBLACK, 129038, __cmp_longs);
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}
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/* deal with flags */
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mc->flags = flags;
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/* sizes */
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mc->esize = esize + sizeof(unsigned long);
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mc->epc = (_MPG_SIZE - sizeof(struct _mpg)) / mc->esize;
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#if 0
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if((flags & _MCACHE_PREALLOC)) {
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pt = mmap(NULL, _MPG_SIZE, PROT_READ|PROT_WRITE, MAP_ANONYMOUS, -1, 0);
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if(pt == MAP_FAILED) {
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pthread_rwlock_destroy(&(mc->lock));
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return ENOMEM;
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} else pg = (struct _mpg *)pt;
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}
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#endif
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return r;
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}
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void* sntl_mcache_alloc(sntl_mcache_t *mc)
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{
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return NULL;
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}
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void sntl_mcache_free(void *p)
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{
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return;
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}
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void sntl_mcache_destroy(sntl_mcache_t *mc)
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{
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return;
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}
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