Update to last LGPL2+ version of talloc.

svn path=/trunk/netsurf/; revision=4528

1 files changed, 88 insertions, 48 deletions

diff --git a/utils/talloc.h b/utils/talloc.h
index b0321384e..d9e7d9433 100644
--- a/utils/talloc.h
+++ b/utils/talloc.h
@@ -5,23 +5,30 @@
    Samba temporary memory allocation functions
 
    Copyright (C) Andrew Tridgell 2004-2005
+   Copyright (C) Stefan Metzmacher 2006
    
-   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; either version 2 of the License, or
-   (at your option) any later version.
+     ** NOTE! The following LGPL license applies to the talloc
+     ** library. This does NOT imply that all of Samba is released
+     ** under the LGPL
    
-   This program is distributed in the hope that it will be useful,
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
 
-#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
 
 /* this is only needed for compatibility with the old talloc */
 typedef void TALLOC_CTX;
@@ -29,18 +36,55 @@ typedef void TALLOC_CTX;
 /*
   this uses a little trick to allow __LINE__ to be stringified
 */
-#define _STRING_LINE_(s)    #s
-#define _STRING_LINE2_(s)   _STRING_LINE_(s)
-#define __LINESTR__       _STRING_LINE2_(__LINE__)
-#define __location__ __FILE__ ":" __LINESTR__
+#ifndef __location__
+#define __TALLOC_STRING_LINE1__(s)    #s
+#define __TALLOC_STRING_LINE2__(s)   __TALLOC_STRING_LINE1__(s)
+#define __TALLOC_STRING_LINE3__  __TALLOC_STRING_LINE2__(__LINE__)
+#define __location__ __FILE__ ":" __TALLOC_STRING_LINE3__
+#endif
 
 #ifndef TALLOC_DEPRECATED
 #define TALLOC_DEPRECATED 0
 #endif
 
+#ifndef PRINTF_ATTRIBUTE
+#if (__GNUC__ >= 3)
+/** Use gcc attribute to check printf fns.  a1 is the 1-based index of
+ * the parameter containing the format, and a2 the index of the first
+ * argument. Note that some gcc 2.x versions don't handle this
+ * properly **/
+#define PRINTF_ATTRIBUTE(a1, a2) __attribute__ ((format (__printf__, a1, a2)))
+#else
+#define PRINTF_ATTRIBUTE(a1, a2)
+#endif
+#endif
+
+/* try to make talloc_set_destructor() and talloc_steal() type safe,
+   if we have a recent gcc */
+#if (__GNUC__ >= 3)
+#define _TALLOC_TYPEOF(ptr) __typeof__(ptr)
+#define talloc_set_destructor(ptr, function)				      \
+	do {								      \
+		int (*_talloc_destructor_fn)(_TALLOC_TYPEOF(ptr)) = (function);	      \
+		_talloc_set_destructor((ptr), (int (*)(void *))_talloc_destructor_fn); \
+	} while(0)
+/* this extremely strange macro is to avoid some braindamaged warning
+   stupidity in gcc 4.1.x */
+#define talloc_steal(ctx, ptr) ({ _TALLOC_TYPEOF(ptr) __talloc_steal_ret = (_TALLOC_TYPEOF(ptr))_talloc_steal((ctx),(ptr)); __talloc_steal_ret; })
+#else
+#define talloc_set_destructor(ptr, function) \
+	_talloc_set_destructor((ptr), (int (*)(void *))(function))
+#define _TALLOC_TYPEOF(ptr) void *
+#define talloc_steal(ctx, ptr) (_TALLOC_TYPEOF(ptr))_talloc_steal((ctx),(ptr))
+#endif
+
+#define talloc_reference(ctx, ptr) (_TALLOC_TYPEOF(ptr))_talloc_reference((ctx),(ptr))
+#define talloc_move(ctx, ptr) (_TALLOC_TYPEOF(*(ptr)))_talloc_move((ctx),(void *)(ptr))
+
 /* useful macros for creating type checked pointers */
 #define talloc(ctx, type) (type *)talloc_named_const(ctx, sizeof(type), #type)
 #define talloc_size(ctx, size) talloc_named_const(ctx, size, __location__)
+#define talloc_ptrtype(ctx, ptr) (_TALLOC_TYPEOF(ptr))talloc_size(ctx, sizeof(*(ptr)))
 
 #define talloc_new(ctx) talloc_named_const(ctx, 0, "talloc_new: " __location__)
 
@@ -50,23 +94,17 @@ typedef void TALLOC_CTX;
 #define talloc_zero_array(ctx, type, count) (type *)_talloc_zero_array(ctx, sizeof(type), count, #type)
 #define talloc_array(ctx, type, count) (type *)_talloc_array(ctx, sizeof(type), count, #type)
 #define talloc_array_size(ctx, size, count) _talloc_array(ctx, size, count, __location__)
+#define talloc_array_ptrtype(ctx, ptr, count) (_TALLOC_TYPEOF(ptr))talloc_array_size(ctx, sizeof(*(ptr)), count)
 
 #define talloc_realloc(ctx, p, type, count) (type *)_talloc_realloc_array(ctx, p, sizeof(type), count, #type)
 #define talloc_realloc_size(ctx, ptr, size) _talloc_realloc(ctx, ptr, size, __location__)
 
 #define talloc_memdup(t, p, size) _talloc_memdup(t, p, size, __location__)
 
-#define malloc_p(type) (type *)malloc(sizeof(type))
-#define malloc_array_p(type, count) (type *)realloc_array(NULL, sizeof(type), count)
-#define realloc_p(p, type, count) (type *)realloc_array(p, sizeof(type), count)
-
-#define data_blob(ptr, size) data_blob_named(ptr, size, "DATA_BLOB: "__location__)
-#define data_blob_talloc(ctx, ptr, size) data_blob_talloc_named(ctx, ptr, size, "DATA_BLOB: "__location__)
-#define data_blob_dup_talloc(ctx, blob) data_blob_talloc_named(ctx, (blob)->data, (blob)->length, "DATA_BLOB: "__location__)
-
 #define talloc_set_type(ptr, type) talloc_set_name_const(ptr, #type)
 #define talloc_get_type(ptr, type) (type *)talloc_check_name(ptr, #type)
 
+#define talloc_find_parent_bytype(ptr, type) (type *)talloc_find_parent_byname(ptr, #type)
 
 #if TALLOC_DEPRECATED
 #define talloc_zero_p(ctx, type) talloc_zero(ctx, type)
@@ -76,58 +114,60 @@ typedef void TALLOC_CTX;
 #define talloc_destroy(ctx) talloc_free(ctx)
 #endif
 
-#ifndef PRINTF_ATTRIBUTE
-#if (__GNUC__ >= 3)
-/** Use gcc attribute to check printf fns.  a1 is the 1-based index of
- * the parameter containing the format, and a2 the index of the first
- * argument. Note that some gcc 2.x versions don't handle this
- * properly **/
-#define PRINTF_ATTRIBUTE(a1, a2) __attribute__ ((format (__printf__, a1, a2)))
-#else
-#define PRINTF_ATTRIBUTE(a1, a2)
-#endif
-#endif
-
-
 /* The following definitions come from talloc.c  */
 void *_talloc(const void *context, size_t size);
-void talloc_set_destructor(const void *ptr, int (*destructor)(void *));
-void talloc_increase_ref_count(const void *ptr);
-void *talloc_reference(const void *context, const void *ptr);
+void _talloc_set_destructor(const void *ptr, int (*destructor)(void *));
+int talloc_increase_ref_count(const void *ptr);
+size_t talloc_reference_count(const void *ptr);
+void *_talloc_reference(const void *context, const void *ptr);
 int talloc_unlink(const void *context, void *ptr);
-void talloc_set_name(const void *ptr, const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
+const char *talloc_set_name(const void *ptr, const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
 void talloc_set_name_const(const void *ptr, const char *name);
 void *talloc_named(const void *context, size_t size, 
 		   const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
 void *talloc_named_const(const void *context, size_t size, const char *name);
 const char *talloc_get_name(const void *ptr);
 void *talloc_check_name(const void *ptr, const char *name);
-void talloc_report_depth(const void *ptr, FILE *f, int depth);
 void *talloc_parent(const void *ptr);
+const char *talloc_parent_name(const void *ptr);
 void *talloc_init(const char *fmt, ...) PRINTF_ATTRIBUTE(1,2);
 int talloc_free(void *ptr);
+void talloc_free_children(void *ptr);
 void *_talloc_realloc(const void *context, void *ptr, size_t size, const char *name);
-void *talloc_steal(const void *new_ctx, const void *ptr);
-off_t talloc_total_size(const void *ptr);
-off_t talloc_total_blocks(const void *ptr);
+void *_talloc_steal(const void *new_ctx, const void *ptr);
+void *_talloc_move(const void *new_ctx, const void *pptr);
+size_t talloc_total_size(const void *ptr);
+size_t talloc_total_blocks(const void *ptr);
+void talloc_report_depth_cb(const void *ptr, int depth, int max_depth,
+			    void (*callback)(const void *ptr,
+			  		     int depth, int max_depth,
+					     int is_ref,
+					     void *private_data),
+			    void *private_data);
+void talloc_report_depth_file(const void *ptr, int depth, int max_depth, FILE *f);
 void talloc_report_full(const void *ptr, FILE *f);
 void talloc_report(const void *ptr, FILE *f);
 void talloc_enable_null_tracking(void);
+void talloc_disable_null_tracking(void);
 void talloc_enable_leak_report(void);
 void talloc_enable_leak_report_full(void);
 void *_talloc_zero(const void *ctx, size_t size, const char *name);
 void *_talloc_memdup(const void *t, const void *p, size_t size, const char *name);
 char *talloc_strdup(const void *t, const char *p);
 char *talloc_strndup(const void *t, const char *p, size_t n);
+char *talloc_append_string(const void *t, char *orig, const char *append);
 char *talloc_vasprintf(const void *t, const char *fmt, va_list ap) PRINTF_ATTRIBUTE(2,0);
+char *talloc_vasprintf_append(char *s, const char *fmt, va_list ap) PRINTF_ATTRIBUTE(2,0);
 char *talloc_asprintf(const void *t, const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
-char *talloc_asprintf_append(char *s,
-			     const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
+char *talloc_asprintf_append(char *s, const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
 void *_talloc_array(const void *ctx, size_t el_size, unsigned count, const char *name);
 void *_talloc_zero_array(const void *ctx, size_t el_size, unsigned count, const char *name);
 void *_talloc_realloc_array(const void *ctx, void *ptr, size_t el_size, unsigned count, const char *name);
 void *talloc_realloc_fn(const void *context, void *ptr, size_t size);
 void *talloc_autofree_context(void);
+size_t talloc_get_size(const void *ctx);
+void *talloc_find_parent_byname(const void *ctx, const char *name);
+void talloc_show_parents(const void *context, FILE *file);
+int talloc_is_parent(const void *context, const void *ptr);
 
 #endif
-