mirror of
https://github.com/VCMP-SqMod/SqMod.git
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102 lines
2.6 KiB
C
102 lines
2.6 KiB
C
/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library 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 GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; if not, write to the Free
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Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02111-1301, USA */
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#ifdef SAFEMALLOC /* We don't need SAFEMALLOC here */
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#undef SAFEMALLOC
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#endif
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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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gptr my_malloc(size_t Size, myf MyFlags)
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{
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gptr point;
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DBUG_ENTER("my_malloc");
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DBUG_PRINT("my",("Size: %u MyFlags: %d",Size, MyFlags));
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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 (MyFlags & MY_FAE)
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error_handler_hook=fatal_error_handler_hook;
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if (MyFlags & (MY_FAE+MY_WME))
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my_error(EE_OUTOFMEMORY, MYF(ME_BELL+ME_WAITTANG),Size);
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if (MyFlags & MY_FAE)
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exit(1);
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}
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else if (MyFlags & MY_ZEROFILL)
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bzero(point,Size);
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DBUG_PRINT("exit",("ptr: %lx",point));
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DBUG_RETURN(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: %lx",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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gptr my_memdup(const unsigned char *from, size_t length, myf MyFlags)
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{
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gptr ptr;
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if ((ptr=my_malloc(length,MyFlags)) != 0)
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memcpy((unsigned char*) ptr, (unsigned char*) from,(size_t) length);
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return(ptr);
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}
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my_string my_strdup(const char *from, myf MyFlags)
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{
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gptr ptr;
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uint length;
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if ((MyFlags & MY_ALLOW_ZERO_PTR) && !from)
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return NULL;
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length=(uint) strlen(from)+1;
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if ((ptr=my_malloc(length,MyFlags)) != 0)
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memcpy((unsigned char*) ptr, (unsigned char*) from,(size_t) length);
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return((my_string) ptr);
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}
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my_string my_strndup(const char *src, size_t length, myf MyFlags)
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{
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gptr ptr;
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if ((ptr= my_malloc(length+1, MyFlags))) {
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memcpy(ptr, src, length);
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ptr[length] = 0;
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}
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return ptr;
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}
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/* }}} */
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