-/* GNU Objective C Runtime Miscellanious
- Copyright (C) 1993 Free Software Foundation, Inc.
-
-Author: Kresten Krab Thorup
+/* GNU Objective C Runtime Miscellaneous
+ Copyright (C) 1993, 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
+ Contrbuted by Kresten Krab Thorup
This file is part of GNU CC.
-GNU CC 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; either version 2, or (at your option) any later version.
+GNU CC 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; either version 2, or (at your option) any
+later version.
-GNU CC 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.
+GNU CC 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
- GNU CC; see the file COPYING. If not, write to the Free Software
- Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+You should have received a copy of the GNU General Public License
+along with GNU CC; see the file COPYING. If not, write to the Free
+Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
/* As a special exception, if you link this library with files compiled with
GCC to produce an executable, this does not cause the resulting executable
however invalidate any other reasons why the executable file might be
covered by the GNU General Public License. */
+#define __USE_FIXED_PROTOTYPES__
+#include <stdlib.h>
#include "runtime.h"
-void objc_error(id object, const char* fmt, va_list);
+/*
+** Error handler function
+** NULL so that default is to just print to stderr
+*/
+static objc_error_handler _objc_error_handler = NULL;
+
+/* Trigger an objc error */
+void
+objc_error(id object, int code, const char* fmt, ...)
+{
+ va_list ap;
-void (*_objc_error)(id, const char*, va_list) = objc_error;
-/* id (*_objc_object_alloc)(Class_t) = 0; */
-/* id (*_objc_object_dispose)(id) = 0; */
-/* id (*_objc_object_copy)(id) = 0; */
+ va_start(ap, fmt);
+ objc_verror(object, code, fmt, ap);
+ va_end(ap);
+}
+/* Trigger an objc error */
void
-objc_error(id object, const char* fmt, va_list ap)
+objc_verror(id object, int code, const char* fmt, va_list ap)
{
- vfprintf (stderr, fmt, ap);
- abort ();
+ BOOL result = NO;
+
+ /* Call the error handler if its there
+ Otherwise print to stderr */
+ if (_objc_error_handler)
+ result = (*_objc_error_handler)(object, code, fmt, ap);
+ else
+ vfprintf (stderr, fmt, ap);
+
+ /* Continue if the error handler says its ok
+ Otherwise abort the program */
+ if (result)
+ return;
+ else
+ abort();
}
-volatile void
-objc_fatal(const char* msg)
+/* Set the error handler */
+objc_error_handler
+objc_set_error_handler(objc_error_handler func)
{
- write(2, msg, strlen(msg));
- abort();
+ objc_error_handler temp = _objc_error_handler;
+ _objc_error_handler = func;
+ return temp;
}
-void*
-__objc_xmalloc(size_t size)
+/*
+** Standard functions for memory allocation and disposal.
+** Users should use these functions in their ObjC programs so
+** that they work properly with garbage collectors as well as
+** can take advantage of the exception/error handling available.
+*/
+
+void *
+objc_malloc(size_t size)
{
- void* res = (void*) malloc(size);
+ void* res = (void*) (*_objc_malloc)(size);
if(!res)
- objc_fatal("Virtual memory exhausted\n");
+ objc_error(nil, OBJC_ERR_MEMORY, "Virtual memory exhausted\n");
return res;
}
-void*
-__objc_xrealloc(void* mem, size_t size)
+void *
+objc_atomic_malloc(size_t size)
{
- void* res = (void*) realloc(mem, size);
+ void* res = (void*) (*_objc_atomic_malloc)(size);
if(!res)
- objc_fatal("Virtual memory exhausted\n");
+ objc_error(nil, OBJC_ERR_MEMORY, "Virtual memory exhausted\n");
return res;
}
-void*
-__objc_xcalloc(size_t nelem, size_t size)
+void *
+objc_valloc(size_t size)
{
- void* res = (void*)calloc(nelem, size);
+ void* res = (void*) (*_objc_valloc)(size);
if(!res)
- objc_fatal("Virtual memory exhausted\n");
+ objc_error(nil, OBJC_ERR_MEMORY, "Virtual memory exhausted\n");
return res;
}
+
+void *
+objc_realloc(void *mem, size_t size)
+{
+ void* res = (void*) (*_objc_realloc)(mem, size);
+ if(!res)
+ objc_error(nil, OBJC_ERR_MEMORY, "Virtual memory exhausted\n");
+ return res;
+}
+
+void *
+objc_calloc(size_t nelem, size_t size)
+{
+ void* res = (void*) (*_objc_calloc)(nelem, size);
+ if(!res)
+ objc_error(nil, OBJC_ERR_MEMORY, "Virtual memory exhausted\n");
+ return res;
+}
+
+void
+objc_free(void *mem)
+{
+ (*_objc_free)(mem);
+}
+
+/*
+** Hook functions for memory allocation and disposal.
+** This makes it easy to substitute garbage collection systems
+** such as Boehm's GC by assigning these function pointers
+** to the GC's allocation routines. By default these point
+** to the ANSI standard malloc, realloc, free, etc.
+**
+** Users should call the normal objc routines above for
+** memory allocation and disposal within their programs.
+*/
+void *(*_objc_malloc)(size_t) = malloc;
+void *(*_objc_atomic_malloc)(size_t) = malloc;
+void *(*_objc_valloc)(size_t) = malloc;
+void *(*_objc_realloc)(void *, size_t) = realloc;
+void *(*_objc_calloc)(size_t, size_t) = calloc;
+void (*_objc_free)(void *) = free;
git://gcc.gnu.org / gcc.git / blobdiff