static cache_vars_t* cache_init(int size,int sector){
int num;
#if !defined(__MINGW32__) && !defined(PTHREAD_CACHE) && !defined(__OS2__)
cache_vars_t* s=shmem_alloc(sizeof(cache_vars_t));
#else
cache_vars_t* s=malloc(sizeof(cache_vars_t));
#endif
if(s==NULL) return NULL;
memset(s,0,sizeof(cache_vars_t));
num=size/sector;
if(num < 16){
num = 16;
}//32kb min_size
s->buffer_size=num*sector;
s->sector_size=sector;
#if !defined(__MINGW32__) && !defined(PTHREAD_CACHE) && !defined(__OS2__)
s->buffer=shmem_alloc(s->buffer_size);
#else
s->buffer=malloc(s->buffer_size);
#endif
if(s->buffer == NULL){
#if !defined(__MINGW32__) && !defined(PTHREAD_CACHE) && !defined(__OS2__)
shmem_free(s,sizeof(cache_vars_t));
#else
free(s);
#endif
return NULL;
}
s->fill_limit=8*sector;
s->back_size=s->buffer_size/2;
return s;
}
cache_vars_t* cache_init(int size,int sector){
int num;
#ifndef WIN32
cache_vars_t* s=shmem_alloc(sizeof(cache_vars_t));
#else
cache_vars_t* s=malloc(sizeof(cache_vars_t));
#endif
if(s==NULL) return NULL;
memset(s,0,sizeof(cache_vars_t));
num=size/sector;
if(num < 16){
num = 16;
}//32kb min_size
s->buffer_size=num*sector;
s->sector_size=sector;
#ifndef WIN32
s->buffer=shmem_alloc(s->buffer_size);
#else
s->buffer=malloc(s->buffer_size);
#endif
if(s->buffer == NULL){
#ifndef WIN32
shmem_free(s,sizeof(cache_vars_t));
#else
free(s);
#endif
return NULL;
}
s->fill_limit=8*sector;
s->back_size=s->buffer_size/2;
return s;
}
static void *shared_alloc(int size) {
#if FORKED_CACHE
return shmem_alloc(size);
#else
return malloc(size);
#endif
}
FifoRing* fifo_ring_create(size_t length)
{
FifoRing* thiz = NULL;
return_val_if_fail(length > 1, NULL);
thiz = (FifoRing*)shmem_alloc(sizeof(FifoRing) + length * sizeof(void*));
if(thiz != NULL)
{
if(thiz->inited == 0)
{
thiz->r_cursor = 0;
thiz->w_cursor = 0;
thiz->length = length;
thiz->inited = 1;
}
}
return thiz;
}
