diff options
Diffstat (limited to 'mysys/my_alloc.c')
| -rw-r--r-- | mysys/my_alloc.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/mysys/my_alloc.c b/mysys/my_alloc.c index 9c45cdc2277..19e51880209 100644 --- a/mysys/my_alloc.c +++ b/mysys/my_alloc.c @@ -154,6 +154,14 @@ void *alloc_root(MEM_ROOT *mem_root, size_t length) DBUG_ASSERT(alloc_root_inited(mem_root)); + DBUG_EXECUTE_IF("simulate_out_of_memory", + { + if (mem_root->error_handler) + (*mem_root->error_handler)(); + DBUG_SET("-d,simulate_out_of_memory"); + DBUG_RETURN((void*) 0); /* purecov: inspected */ + }); + length+=ALIGN_SIZE(sizeof(USED_MEM)); if (!(next = (USED_MEM*) my_malloc(length,MYF(MY_WME | ME_FATALERROR)))) { @@ -176,6 +184,14 @@ void *alloc_root(MEM_ROOT *mem_root, size_t length) DBUG_PRINT("enter",("root: 0x%lx", (long) mem_root)); DBUG_ASSERT(alloc_root_inited(mem_root)); + DBUG_EXECUTE_IF("simulate_out_of_memory", + { + /* Avoid reusing an already allocated block */ + if (mem_root->error_handler) + (*mem_root->error_handler)(); + DBUG_SET("-d,simulate_out_of_memory"); + DBUG_RETURN((void*) 0); /* purecov: inspected */ + }); length= ALIGN_SIZE(length); if ((*(prev= &mem_root->free)) != NULL) { |