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Share segment alloc

This commit is contained in:
MelwareDE 2010-06-02 22:42:15 +00:00
parent 57b9aa8bec
commit 842012cc0f
1 changed files with 34 additions and 1 deletions
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35
divastreaming/segment_alloc.c
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@ -102,10 +102,26 @@ static diva_segment_alloc_access_t ifc_ref = {
resource_removed
};
#if defined(DIVA_SHARED_SEGMENT_ALLOC)
static struct _diva_segment_alloc* shared_segment_alloc;
static int shared_segment_alloc_count;
#endif
int diva_create_segment_alloc (void* os_context, struct _diva_segment_alloc** segment_alloc)
{
diva_segment_alloc_t* pI = diva_os_malloc(0, sizeof(*pI));
#if defined(DIVA_SHARED_SEGMENT_ALLOC)
if (shared_segment_alloc != 0) {
shared_segment_alloc_count++;
*segment_alloc = shared_segment_alloc;
DBG_LOG(("shared %d segment alloc [%p]", pI, shared_segment_alloc_count))
return (0);
}
#endif
pI = diva_os_malloc(0, sizeof(*pI));
if (pI != 0) {
memset (pI, 0x00, sizeof(*pI));
@ -133,6 +149,10 @@ int diva_create_segment_alloc (void* os_context, struct _diva_segment_alloc** s
}
if (pI != 0) {
#if defined(DIVA_SHARED_SEGMENT_ALLOC)
shared_segment_alloc = pI;
shared_segment_alloc_count = 1;
#endif
DBG_LOG(("created segment alloc [%p]", pI))
}
@ -142,11 +162,24 @@ int diva_create_segment_alloc (void* os_context, struct _diva_segment_alloc** s
int diva_destroy_segment_alloc (struct _diva_segment_alloc** segment_alloc) {
diva_segment_alloc_t* pI = (segment_alloc != 0) ? *segment_alloc : 0;
DBG_TRC(("destroy segment alloc [%p]", segment_alloc))
#if defined(DIVA_SHARED_SEGMENT_ALLOC)
shared_segment_alloc_count--;
if (shared_segment_alloc_count > 0) {
if (segment_alloc != 0)
*segment_alloc = 0;
DBG_LOG(("unshare %d segment alloc [%p]", segment_alloc, shared_segment_alloc_count))
return (0);
}
#endif
DBG_LOG(("destroy segment alloc [%p]", segment_alloc))
if (pI != 0) {
diva_entity_link_t* link;
shared_segment_alloc = 0;
shared_segment_alloc_count = 0;
while ((link = diva_q_get_head (&pI->busy_q)) != 0) {
diva_q_remove (&pI->busy_q, link);
diva_q_add_tail (&pI->free_q, link);