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Handle OOM in block_alloc_get_chunk, and also in the caller

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in mysqlnd_wireprotocol.c
This commit is contained in:
Andrey Hristov 2010-05-03 16:20:46 +00:00
parent 864f2da733
commit f9fe805abe
2 changed files with 27 additions and 22 deletions
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3
ext/mysqlnd/mysqlnd_block_alloc.c
View file

@ -119,7 +119,7 @@ MYSQLND_MEMORY_POOL_CHUNK * mysqlnd_mempool_get_chunk(MYSQLND_MEMORY_POOL * pool
DBG_ENTER("mysqlnd_mempool_get_chunk"); DBG_ENTER("mysqlnd_mempool_get_chunk");
chunk = mnd_malloc(sizeof(MYSQLND_MEMORY_POOL_CHUNK)); chunk = mnd_malloc(sizeof(MYSQLND_MEMORY_POOL_CHUNK));
if (chunk) {
chunk->free_chunk = mysqlnd_mempool_free_chunk; chunk->free_chunk = mysqlnd_mempool_free_chunk;
chunk->resize_chunk = mysqlnd_mempool_resize_chunk; chunk->resize_chunk = mysqlnd_mempool_resize_chunk;
chunk->size = size; chunk->size = size;
@ -143,6 +143,7 @@ MYSQLND_MEMORY_POOL_CHUNK * mysqlnd_mempool_get_chunk(MYSQLND_MEMORY_POOL * pool
/* Last step, update free_size */ /* Last step, update free_size */
pool->free_size -= size; pool->free_size -= size;
} }
}
DBG_RETURN(chunk); DBG_RETURN(chunk);
} }
/* }}} */ /* }}} */

4
ext/mysqlnd/mysqlnd_wireprotocol.c
View file

@ -1136,6 +1136,10 @@ php_mysqlnd_read_row_ex(MYSQLND * conn, MYSQLND_MEMORY_POOL * result_set_memory_
to be able to implement read-only variables. Thus, we add + 1. to be able to implement read-only variables. Thus, we add + 1.
*/ */
*buffer = result_set_memory_pool->get_chunk(result_set_memory_pool, *data_size + 1 TSRMLS_CC); *buffer = result_set_memory_pool->get_chunk(result_set_memory_pool, *data_size + 1 TSRMLS_CC);
if (!*buffer) {
ret = FAIL;
break;
}
p = (*buffer)->ptr; p = (*buffer)->ptr;
} else if (!first_iteration) { } else if (!first_iteration) {
/* Empty packet after MYSQLND_MAX_PACKET_SIZE packet. That's ok, break */ /* Empty packet after MYSQLND_MAX_PACKET_SIZE packet. That's ok, break */