void *zend_shared_alloc(size_t size)
{
int i;
unsigned int block_size = ZEND_ALIGNED_SIZE(size);
#if 1
if (!ZCG(locked)) {
zend_accel_error(ACCEL_LOG_ERROR, "Shared memory lock not obtained");
}
#endif
if (block_size > ZSMMG(shared_free)) { /* No hope to find a big-enough block */
SHARED_ALLOC_FAILED();
return NULL;
}
for (i = 0; i < ZSMMG(shared_segments_count); i++) {
if (ZSMMG(shared_segments)[i]->size - ZSMMG(shared_segments)[i]->pos >= block_size) { /* found a valid block */
void *retval = (void *) (((char *) ZSMMG(shared_segments)[i]->p) + ZSMMG(shared_segments)[i]->pos);
ZSMMG(shared_segments)[i]->pos += block_size;
ZSMMG(shared_free) -= block_size;
memset(retval, 0, block_size);
ZEND_ASSERT(((zend_uintptr_t)retval & 0x7) == 0); /* should be 8 byte aligned */
return retval;
}
}
SHARED_ALLOC_FAILED();
return NULL;
}
void *zend_shared_alloc(size_t size)
{
int i;
unsigned int block_size = size + sizeof(zend_shared_memory_block_header);
TSRMLS_FETCH();
#if 1
if (!ZCG(locked)) {
zend_accel_error(ACCEL_LOG_ERROR, "Shared memory lock not obtained");
}
#endif
if (block_size > ZSMMG(shared_free)) { /* No hope to find a big-enough block */
SHARED_ALLOC_FAILED();
return NULL;
}
for (i = 0; i < ZSMMG(shared_segments_count); i++) {
if (ZSMMG(shared_segments)[i]->size - ZSMMG(shared_segments)[i]->pos >= block_size) { /* found a valid block */
zend_shared_memory_block_header *p = (zend_shared_memory_block_header *) (((char *) ZSMMG(shared_segments)[i]->p) + ZSMMG(shared_segments)[i]->pos);
int remainder = block_size % PLATFORM_ALIGNMENT;
void *retval;
if (remainder != 0) {
size += PLATFORM_ALIGNMENT - remainder;
block_size += PLATFORM_ALIGNMENT - remainder;
}
ZSMMG(shared_segments)[i]->pos += block_size;
ZSMMG(shared_free) -= block_size;
p->size = size;
retval = ((char *) p) + sizeof(zend_shared_memory_block_header);
memset(retval, 0, size);
return retval;
}
}
SHARED_ALLOC_FAILED();
return NULL;
}
