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by brian
clean slate |
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/* Copyright (C) 2000 MySQL AB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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#include "mysys_priv.h" |
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#include "mysys_err.h" |
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#include <m_string.h> |
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/* My memory allocator */
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void *my_malloc(size_t size, myf my_flags) |
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{
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void* point; |
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DBUG_ENTER("my_malloc"); |
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DBUG_PRINT("my",("size: %lu my_flags: %d", (ulong) size, my_flags)); |
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if (!size) |
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size=1; /* Safety */ |
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if ((point = (char*)malloc(size)) == NULL) |
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{
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my_errno=errno; |
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if (my_flags & MY_FAE) |
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error_handler_hook=fatal_error_handler_hook; |
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if (my_flags & (MY_FAE+MY_WME)) |
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my_error(EE_OUTOFMEMORY, MYF(ME_BELL+ME_WAITTANG+ME_NOREFRESH),size); |
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if (my_flags & MY_FAE) |
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exit(1); |
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}
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else if (my_flags & MY_ZEROFILL) |
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bzero(point,size); |
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DBUG_PRINT("exit",("ptr: 0x%lx", (long) point)); |
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DBUG_RETURN((void*) point); |
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} /* my_malloc */ |
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/* Free memory allocated with my_malloc */
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/*ARGSUSED*/
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void my_no_flags_free(void* ptr) |
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{
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DBUG_ENTER("my_free"); |
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DBUG_PRINT("my",("ptr: 0x%lx", (long) ptr)); |
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if (ptr) |
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free(ptr); |
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DBUG_VOID_RETURN; |
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} /* my_free */ |
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/* malloc and copy */
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void* my_memdup(const void *from, size_t length, myf my_flags) |
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{
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void *ptr; |
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if ((ptr= my_malloc(length,my_flags)) != 0) |
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memcpy(ptr, from, length); |
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return(ptr); |
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}
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char *my_strdup(const char *from, myf my_flags) |
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{
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char *ptr; |
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size_t length= strlen(from)+1; |
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if ((ptr= (char*) my_malloc(length, my_flags))) |
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memcpy((uchar*) ptr, (uchar*) from,(size_t) length); |
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return(ptr); |
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}
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char *my_strndup(const char *from, size_t length, myf my_flags) |
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{
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char *ptr; |
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if ((ptr= (char*) my_malloc(length+1,my_flags)) != 0) |
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{
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memcpy((uchar*) ptr, (uchar*) from, length); |
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ptr[length]=0; |
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}
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return((char*) ptr); |
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}
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