view tools/xenstore/talloc.h @ 8740:3d7ea7972b39

Update patches for linux 2.6.15.

Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
author cl349@firebug.cl.cam.ac.uk
date Thu Feb 02 17:16:00 2006 +0000 (2006-02-02)
parents 6d3e8f90c2df
children 40e3df4cffe4
line source
1 #ifndef _TALLOC_H_
2 #define _TALLOC_H_
3 /*
4 Unix SMB/CIFS implementation.
5 Samba temporary memory allocation functions
7 Copyright (C) Andrew Tridgell 2004-2005
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 */
24 /* this is only needed for compatibility with the old talloc */
25 typedef void TALLOC_CTX;
27 /*
28 this uses a little trick to allow __LINE__ to be stringified
29 */
30 #define _STRING_LINE_(s) #s
31 #define _STRING_LINE2_(s) _STRING_LINE_(s)
32 #define __LINESTR__ _STRING_LINE2_(__LINE__)
33 #define __location__ __FILE__ ":" __LINESTR__
37 #endif
39 /* useful macros for creating type checked pointers */
40 #define talloc(ctx, type) (type *)talloc_named_const(ctx, sizeof(type), #type)
41 #define talloc_size(ctx, size) talloc_named_const(ctx, size, __location__)
43 #define talloc_new(ctx) talloc_named_const(ctx, 0, "talloc_new: " __location__)
45 #define talloc_zero(ctx, type) (type *)_talloc_zero(ctx, sizeof(type), #type)
46 #define talloc_zero_size(ctx, size) _talloc_zero(ctx, size, __location__)
48 #define talloc_zero_array(ctx, type, count) (type *)_talloc_zero_array(ctx, sizeof(type), count, #type)
49 #define talloc_array(ctx, type, count) (type *)_talloc_array(ctx, sizeof(type), count, #type)
50 #define talloc_array_size(ctx, size, count) _talloc_array(ctx, size, count, __location__)
52 #define talloc_realloc(ctx, p, type, count) (type *)_talloc_realloc_array(ctx, p, sizeof(type), count, #type)
53 #define talloc_realloc_size(ctx, ptr, size) _talloc_realloc(ctx, ptr, size, __location__)
55 #define talloc_memdup(t, p, size) _talloc_memdup(t, p, size, __location__)
57 #define malloc_p(type) (type *)malloc(sizeof(type))
58 #define malloc_array_p(type, count) (type *)realloc_array(NULL, sizeof(type), count)
59 #define realloc_p(p, type, count) (type *)realloc_array(p, sizeof(type), count)
61 #define data_blob(ptr, size) data_blob_named(ptr, size, "DATA_BLOB: "__location__)
62 #define data_blob_talloc(ctx, ptr, size) data_blob_talloc_named(ctx, ptr, size, "DATA_BLOB: "__location__)
63 #define data_blob_dup_talloc(ctx, blob) data_blob_talloc_named(ctx, (blob)->data, (blob)->length, "DATA_BLOB: "__location__)
65 #define talloc_set_type(ptr, type) talloc_set_name_const(ptr, #type)
66 #define talloc_get_type(ptr, type) (type *)talloc_check_name(ptr, #type)
70 #define talloc_zero_p(ctx, type) talloc_zero(ctx, type)
71 #define talloc_p(ctx, type) talloc(ctx, type)
72 #define talloc_array_p(ctx, type, count) talloc_array(ctx, type, count)
73 #define talloc_realloc_p(ctx, p, type, count) talloc_realloc(ctx, p, type, count)
74 #define talloc_destroy(ctx) talloc_free(ctx)
75 #endif
78 #if (__GNUC__ >= 3)
79 /** Use gcc attribute to check printf fns. a1 is the 1-based index of
80 * the parameter containing the format, and a2 the index of the first
81 * argument. Note that some gcc 2.x versions don't handle this
82 * properly **/
83 #define PRINTF_ATTRIBUTE(a1, a2) __attribute__ ((format (__printf__, a1, a2)))
84 #else
85 #define PRINTF_ATTRIBUTE(a1, a2)
86 #endif
87 #endif
90 /* The following definitions come from talloc.c */
91 void *_talloc(const void *context, size_t size);
92 void talloc_set_destructor(const void *ptr, int (*destructor)(void *));
93 void talloc_increase_ref_count(const void *ptr);
94 void *talloc_reference(const void *context, const void *ptr);
95 int talloc_unlink(const void *context, void *ptr);
96 void talloc_set_name(const void *ptr, const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
97 void talloc_set_name_const(const void *ptr, const char *name);
98 void *talloc_named(const void *context, size_t size,
99 const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
100 void *talloc_named_const(const void *context, size_t size, const char *name);
101 const char *talloc_get_name(const void *ptr);
102 void *talloc_check_name(const void *ptr, const char *name);
103 void talloc_report_depth(const void *ptr, FILE *f, int depth);
104 void *talloc_parent(const void *ptr);
105 void *talloc_init(const char *fmt, ...) PRINTF_ATTRIBUTE(1,2);
106 int talloc_free(void *ptr);
107 void *_talloc_realloc(const void *context, void *ptr, size_t size, const char *name);
108 void *talloc_steal(const void *new_ctx, const void *ptr);
109 off_t talloc_total_size(const void *ptr);
110 off_t talloc_total_blocks(const void *ptr);
111 void talloc_report_full(const void *ptr, FILE *f);
112 void talloc_report(const void *ptr, FILE *f);
113 void talloc_enable_null_tracking(void);
114 void talloc_enable_leak_report(void);
115 void talloc_enable_leak_report_full(void);
116 void *_talloc_zero(const void *ctx, size_t size, const char *name);
117 void *_talloc_memdup(const void *t, const void *p, size_t size, const char *name);
118 char *talloc_strdup(const void *t, const char *p);
119 char *talloc_strndup(const void *t, const char *p, size_t n);
120 char *talloc_vasprintf(const void *t, const char *fmt, va_list ap) PRINTF_ATTRIBUTE(2,0);
121 char *talloc_asprintf(const void *t, const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
122 char *talloc_asprintf_append(char *s,
123 const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
124 void *_talloc_array(const void *ctx, size_t el_size, unsigned count, const char *name);
125 void *_talloc_zero_array(const void *ctx, size_t el_size, unsigned count, const char *name);
126 void *_talloc_realloc_array(const void *ctx, void *ptr, size_t el_size, unsigned count, const char *name);
127 void *talloc_realloc_fn(const void *context, void *ptr, size_t size);
128 void *talloc_autofree_context(void);
129 size_t talloc_get_size(const void *ctx);
131 typedef int talloc_fail_handler(void *);
132 talloc_fail_handler *talloc_set_fail_handler(talloc_fail_handler *, void *);
133 #endif