diff options
Diffstat (limited to 'deps/mysqllite/mysys/my_malloc.c')
| -rw-r--r-- | deps/mysqllite/mysys/my_malloc.c | 162 |
1 files changed, 0 insertions, 162 deletions
diff --git a/deps/mysqllite/mysys/my_malloc.c b/deps/mysqllite/mysys/my_malloc.c deleted file mode 100644 index fc2dc98c3c..0000000000 --- a/deps/mysqllite/mysys/my_malloc.c +++ /dev/null @@ -1,162 +0,0 @@ -/* Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; version 2 of the License. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ - -#include "mysys_priv.h" -#include "mysys_err.h" -#include <m_string.h> - -/** - Allocate a sized block of memory. - - @param size The size of the memory block in bytes. - @param flags Failure action modifiers (bitmasks). - - @return A pointer to the allocated memory block, or NULL on failure. -*/ -void *my_malloc(size_t size, myf my_flags) -{ - void* point; - DBUG_ENTER("my_malloc"); - DBUG_PRINT("my",("size: %lu my_flags: %d", (ulong) size, my_flags)); - - /* Safety */ - if (!size) - size=1; - - point= malloc(size); - DBUG_EXECUTE_IF("simulate_out_of_memory", - { - free(point); - point= NULL; - }); - - if (point == NULL) - { - my_errno=errno; - if (my_flags & MY_FAE) - error_handler_hook=fatal_error_handler_hook; - if (my_flags & (MY_FAE+MY_WME)) - my_error(EE_OUTOFMEMORY, MYF(ME_BELL+ME_WAITTANG+ME_NOREFRESH),size); - DBUG_EXECUTE_IF("simulate_out_of_memory", - DBUG_SET("-d,simulate_out_of_memory");); - if (my_flags & MY_FAE) - exit(1); - } - else if (my_flags & MY_ZEROFILL) - bzero(point, size); - DBUG_PRINT("exit",("ptr: %p", point)); - DBUG_RETURN(point); -} - - -/** - @brief wrapper around realloc() - - @param oldpoint pointer to currently allocated area - @param size new size requested, must be >0 - @param my_flags flags - - @note if size==0 realloc() may return NULL; my_realloc() treats this as an - error which is not the intention of realloc() -*/ -void *my_realloc(void *oldpoint, size_t size, myf my_flags) -{ - void *point; - DBUG_ENTER("my_realloc"); - DBUG_PRINT("my",("ptr: %p size: %lu my_flags: %d", oldpoint, - (ulong) size, my_flags)); - - DBUG_ASSERT(size > 0); - if (!oldpoint && (my_flags & MY_ALLOW_ZERO_PTR)) - DBUG_RETURN(my_malloc(size, my_flags)); -#ifdef USE_HALLOC - if (!(point = malloc(size))) - { - if (my_flags & MY_FREE_ON_ERROR) - my_free(oldpoint); - if (my_flags & MY_HOLD_ON_ERROR) - DBUG_RETURN(oldpoint); - my_errno=errno; - if (my_flags & MY_FAE+MY_WME) - my_error(EE_OUTOFMEMORY, MYF(ME_BELL+ME_WAITTANG),size); - } - else - { - memcpy(point,oldpoint,size); - free(oldpoint); - } -#else - if ((point= realloc(oldpoint, size)) == NULL) - { - if (my_flags & MY_FREE_ON_ERROR) - my_free(oldpoint); - if (my_flags & MY_HOLD_ON_ERROR) - DBUG_RETURN(oldpoint); - my_errno=errno; - if (my_flags & (MY_FAE+MY_WME)) - my_error(EE_OUTOFMEMORY, MYF(ME_BELL+ME_WAITTANG), size); - } -#endif - DBUG_PRINT("exit",("ptr: %p", point)); - DBUG_RETURN(point); -} - - -/** - Free memory allocated with my_malloc. - - @remark Relies on free being able to handle a NULL argument. - - @param ptr Pointer to the memory allocated by my_malloc. -*/ -void my_free(void *ptr) -{ - DBUG_ENTER("my_free"); - DBUG_PRINT("my",("ptr: %p", ptr)); - free(ptr); - DBUG_VOID_RETURN; -} - - -void *my_memdup(const void *from, size_t length, myf my_flags) -{ - void *ptr; - if ((ptr= my_malloc(length,my_flags)) != 0) - memcpy(ptr, from, length); - return ptr; -} - - -char *my_strdup(const char *from, myf my_flags) -{ - char *ptr; - size_t length= strlen(from)+1; - if ((ptr= (char*) my_malloc(length, my_flags))) - memcpy(ptr, from, length); - return ptr; -} - - -char *my_strndup(const char *from, size_t length, myf my_flags) -{ - char *ptr; - if ((ptr= (char*) my_malloc(length+1, my_flags))) - { - memcpy(ptr, from, length); - ptr[length]= 0; - } - return ptr; -} - |