/* Copyright (C) 2000 MySQL AB 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ /* my_global.h may define SAFEMALLOC (through my_config.h). */ #include <my_global.h> #ifdef SAFEMALLOC /* We don't need SAFEMALLOC here */ #undef SAFEMALLOC #endif #include "mysys_priv.h" #include "mysys_err.h" #include <m_string.h> /* My memory allocator */ 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)); if (!size) size=1; /* Safety */ if ((point = (char*)malloc(size)) == 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); if (my_flags & MY_FAE) exit(1); } else if (my_flags & MY_ZEROFILL) bzero(point,size); DBUG_PRINT("exit",("ptr: 0x%lx", (long) point)); DBUG_RETURN((void*) point); } /* my_malloc */ /* Free memory allocated with my_malloc */ /*ARGSUSED*/ void my_no_flags_free(void* ptr) { DBUG_ENTER("my_free"); DBUG_PRINT("my",("ptr: 0x%lx", (long) ptr)); if (ptr) free(ptr); DBUG_VOID_RETURN; } /* my_free */ /* malloc and copy */ 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((uchar*) ptr, (uchar*) from,(size_t) 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)) != 0) { memcpy((uchar*) ptr, (uchar*) from, length); ptr[length]=0; } return((char*) ptr); }