diff options
Diffstat (limited to 'ext/mysql/libmysql/my_malloc.c')
-rw-r--r-- | ext/mysql/libmysql/my_malloc.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/ext/mysql/libmysql/my_malloc.c b/ext/mysql/libmysql/my_malloc.c new file mode 100644 index 0000000000..ca44ae4f64 --- /dev/null +++ b/ext/mysql/libmysql/my_malloc.c @@ -0,0 +1,70 @@ +/* Copyright Abandoned 1996 TCX DataKonsult AB & Monty Program KB & Detron HB + This file is public domain and comes with NO WARRANTY of any kind */ + +#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 */ + +gptr my_malloc(unsigned int Size, myf MyFlags) +{ + gptr point; + DBUG_ENTER("my_malloc"); + DBUG_PRINT("my",("Size: %u MyFlags: %d",Size, MyFlags)); + + if (!Size) + Size=1; /* Safety */ + if ((point = malloc(Size)) == NULL) + { + my_errno=errno; + if (MyFlags & MY_FAE) + error_handler_hook=fatal_error_handler_hook; + if (MyFlags & (MY_FAE+MY_WME)) + my_error(EE_OUTOFMEMORY, MYF(ME_BELL+ME_WAITTANG),Size); + if (MyFlags & MY_FAE) + exit(1); + } + else if (MyFlags & MY_ZEROFILL) + bzero(point,Size); + DBUG_PRINT("exit",("ptr: %lx",point)); + DBUG_RETURN(point); +} /* my_malloc */ + + + /* Free memory allocated with my_malloc */ + /*ARGSUSED*/ + +void my_no_flags_free(gptr ptr) +{ + DBUG_ENTER("my_free"); + DBUG_PRINT("my",("ptr: %lx",ptr)); + if (ptr) + free(ptr); + DBUG_VOID_RETURN; +} /* my_free */ + + + /* malloc and copy */ + +gptr my_memdup(const byte *from, uint length, myf MyFlags) +{ + gptr ptr; + if ((ptr=my_malloc(length,MyFlags)) != 0) + memcpy((byte*) ptr, (byte*) from,(size_t) length); + return(ptr); +} + + +my_string my_strdup(const char *from, myf MyFlags) +{ + gptr ptr; + uint length=(uint) strlen(from)+1; + if ((ptr=my_malloc(length,MyFlags)) != 0) + memcpy((byte*) ptr, (byte*) from,(size_t) length); + return((my_string) ptr); +} |