D-Bus: dbus-internals.h Source File

D-Bus 1.16.2

dbus-internals.h
1/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
2/* dbus-internals.h random utility stuff (internal to D-Bus implementation)
3 *
4 * Copyright (C) 2002, 2003 Red Hat, Inc.
5 *
6 * SPDX-License-Identifier: AFL-2.1 OR GPL-2.0-or-later
7 *
8 * Licensed under the Academic Free License version 2.1
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 *
24 */
25#ifdef DBUS_INSIDE_DBUS_H
26#error "You can't include dbus-internals.h in the public header dbus.h"
27#endif
28
29#ifndef DBUS_INTERNALS_H
30#define DBUS_INTERNALS_H
31
32#include <dbus/dbus-memory.h>
33#include <dbus/dbus-types.h>
34#include <dbus/dbus-errors.h>
35#include <dbus/dbus-sysdeps.h>
36#include <dbus/dbus-macros-internal.h>
37#include <dbus/dbus-threads-internal.h>
38
39 DBUS_BEGIN_DECLS
40
41DBUS_PRIVATE_EXPORT
42void _dbus_warn (const char *format,
43 ...) _DBUS_GNUC_PRINTF (1, 2);
44
45DBUS_PRIVATE_EXPORT
46void _dbus_warn_check_failed (const char *format,
47 ...) _DBUS_GNUC_PRINTF (1, 2);
48DBUS_PRIVATE_EXPORT
49void _dbus_warn_return_if_fail (const char *function,
50 const char *assertion,
51 const char *file,
52 int line);
53
54DBUS_EMBEDDED_TESTS_EXPORT
55int _dbus_get_check_failed_count (void);
56
57#if defined (__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
58#define _DBUS_FUNCTION_NAME __func__
59#elif defined(__GNUC__) || defined(_MSC_VER)
60#define _DBUS_FUNCTION_NAME __FUNCTION__
61#else
62#define _DBUS_FUNCTION_NAME "unknown function"
63#endif
64
65/*
66 * (code from GLib)
67 *
68 * The _DBUS_LIKELY and _DBUS_UNLIKELY macros let the programmer give hints to
69 * the compiler about the expected result of an expression. Some compilers
70 * can use this information for optimizations.
71 *
72 * The _DBUS_BOOLEAN_EXPR macro is intended to trigger a gcc warning when
73 * putting assignments in the macro arg
74 */
75#if defined(__GNUC__) && (__GNUC__ > 2) && defined(__OPTIMIZE__)
76#define _DBUS_BOOLEAN_EXPR(expr) \
77 __extension__ ({ \
78 int _dbus_boolean_var_; \
79 if (expr) \
80 _dbus_boolean_var_ = 1; \
81 else \
82 _dbus_boolean_var_ = 0; \
83 _dbus_boolean_var_; \
84})
85#define _DBUS_LIKELY(expr) (__builtin_expect (_DBUS_BOOLEAN_EXPR(expr), 1))
86#define _DBUS_UNLIKELY(expr) (__builtin_expect (_DBUS_BOOLEAN_EXPR(expr), 0))
87#else
88#define _DBUS_LIKELY(expr) (expr)
89#define _DBUS_UNLIKELY(expr) (expr)
90#endif
91
92#ifdef DBUS_ENABLE_VERBOSE_MODE
93
94/*
95 at least gnu cc and msvc compiler are known to
96 have support for variable macro argument lists
97 add other compilers is required
98*/
99#if defined(__GNUC__) || defined(_MSC_VER)
100#define DBUS_CPP_SUPPORTS_VARIABLE_MACRO_ARGUMENTS
101#endif
102
103#ifdef DBUS_CPP_SUPPORTS_VARIABLE_MACRO_ARGUMENTS
104DBUS_PRIVATE_EXPORT
105void _dbus_verbose_real (const char *file, const int line, const char *function,
106 const char *format,...) _DBUS_GNUC_PRINTF (4, 5);
107# define _dbus_verbose(fmt,...) _dbus_verbose_real( __FILE__,__LINE__,_DBUS_FUNCTION_NAME,fmt, ## __VA_ARGS__)
108#else
109DBUS_PRIVATE_EXPORT
110void _dbus_verbose_real (const char *format,
111 ...) _DBUS_GNUC_PRINTF (1, 2);
112# define _dbus_verbose _dbus_verbose_real
113#endif
114DBUS_PRIVATE_EXPORT
115void _dbus_verbose_reset_real (void);
116DBUS_PRIVATE_EXPORT
117 dbus_bool_t _dbus_is_verbose_real (void);
118DBUS_PRIVATE_EXPORT
119 dbus_bool_t _dbus_get_verbose (void);
120DBUS_PRIVATE_EXPORT
121void _dbus_set_verbose (dbus_bool_t state);
122void _dbus_verbose_raw (const char *s);
123
124# define _dbus_verbose_reset _dbus_verbose_reset_real
125# define _dbus_is_verbose _dbus_is_verbose_real
126#else
127# define _dbus_verbose(...) do { } while (0)
128# define _dbus_verbose_reset() do { } while (0)
129# define _dbus_is_verbose() FALSE
130#endif /* !DBUS_ENABLE_VERBOSE_MODE */
131
132DBUS_PRIVATE_EXPORT
133void _dbus_trace_ref (const char *obj_name,
134 void *obj,
135 int old_refcount,
136 int new_refcount,
137 const char *why,
138 const char *env_var,
139 int *enabled);
140
141DBUS_PRIVATE_EXPORT
142const char* _dbus_strerror (int error_number);
143
144#ifdef DBUS_DISABLE_ASSERT
145#define _dbus_assert(condition) do { } while (0)
146#else
147DBUS_PRIVATE_EXPORT
148void _dbus_real_assert (dbus_bool_t condition,
149 const char *condition_text,
150 const char *file,
151 int line,
152 const char *func);
153#define _dbus_assert(condition) \
154 _dbus_real_assert ((condition) != 0, #condition, __FILE__, __LINE__, _DBUS_FUNCTION_NAME)
155#endif /* !DBUS_DISABLE_ASSERT */
156
157#ifdef DBUS_DISABLE_ASSERT
158#define _dbus_assert_not_reached(explanation) do { } while (0)
159#else
160DBUS_PRIVATE_EXPORT
161void _dbus_real_assert_not_reached (const char *explanation,
162 const char *file,
163 int line) _DBUS_GNUC_NORETURN;
164#define _dbus_assert_not_reached(explanation) \
165 _dbus_real_assert_not_reached (explanation, __FILE__, __LINE__)
166#endif /* !DBUS_DISABLE_ASSERT */
167
168#ifdef DBUS_DISABLE_CHECKS
169#define _dbus_return_if_fail(condition)
170#define _dbus_return_val_if_fail(condition, val)
171#else
172
173#define _dbus_return_if_fail(condition) do { \
174 _dbus_assert ((*(const char*)_DBUS_FUNCTION_NAME) != '_'); \
175 if (!(condition)) { \
176 _dbus_warn_return_if_fail (_DBUS_FUNCTION_NAME, #condition, __FILE__, __LINE__); \
177 return; \
178 } } while (0)
179
180#define _dbus_return_val_if_fail(condition, val) do { \
181 _dbus_assert ((*(const char*)_DBUS_FUNCTION_NAME) != '_'); \
182 if (!(condition)) { \
183 _dbus_warn_return_if_fail (_DBUS_FUNCTION_NAME, #condition, __FILE__, __LINE__); \
184 return (val); \
185 } } while (0)
186
187#endif /* !DBUS_DISABLE_ASSERT */
188
189#define _DBUS_N_ELEMENTS(array) ((int) (sizeof ((array)) / sizeof ((array)[0])))
190
191#define _DBUS_POINTER_TO_INT(pointer) ((intptr_t)(pointer))
192#define _DBUS_INT_TO_POINTER(integer) ((void*)((intptr_t)(integer)))
193
194#define _DBUS_ZERO(object) (memset (&(object), '\0', sizeof ((object))))
195
196#ifdef offsetof
197#define _DBUS_STRUCT_OFFSET(struct_type, member) \
198 (offsetof (struct_type, member))
199#else
200#define _DBUS_STRUCT_OFFSET(struct_type, member) \
201 ((intptr_t) ((unsigned char*) &((struct_type*) 0)->member))
202#endif
203
204#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L && !defined(__cplusplus)
205#define _DBUS_ALIGNOF(type) _Alignof(type)
206#else
207#define _DBUS_ALIGNOF(type) \
208 (_DBUS_STRUCT_OFFSET (struct { char _1; type _2; }, _2))
209#endif
210
211#if defined(DBUS_DISABLE_CHECKS) || defined(DBUS_DISABLE_ASSERT)
212/* this is an assert and not an error, but in the typical --disable-checks case (you're trying
213 * to really minimize code size), disabling these assertions makes sense.
214 */
215#define _DBUS_ASSERT_ERROR_IS_SET(error) do { } while (0)
216#define _DBUS_ASSERT_ERROR_IS_CLEAR(error) do { } while (0)
217#define _DBUS_ASSERT_ERROR_XOR_BOOL(error, retval) do { } while (0)
218#else
219static inline void
220_dbus_assert_error_is_set (const DBusError *error,
221 const char *file,
222 int line,
223 const char *func)
224{
225 _dbus_real_assert (error == NULL || dbus_error_is_set (error),
226 "error is set", file, line, func);
227}
228
229static inline void
230_dbus_assert_error_is_clear (const DBusError *error,
231 const char *file,
232 int line,
233 const char *func)
234{
235 _dbus_real_assert (error == NULL || !dbus_error_is_set (error),
236 "error is clear", file, line, func);
237}
238
239static inline void
240_dbus_assert_error_xor_bool (const DBusError *error,
241 dbus_bool_t retval,
242 const char *file,
243 int line,
244 const char *func)
245{
246 _dbus_real_assert (error == NULL || dbus_error_is_set (error) == !retval,
247 "error is consistent with boolean result", file, line, func);
248}
249
254#define _DBUS_ASSERT_ERROR_IS_SET(error) _dbus_assert_error_is_set (error, __FILE__, __LINE__, _DBUS_FUNCTION_NAME)
255
260#define _DBUS_ASSERT_ERROR_IS_CLEAR(error) _dbus_assert_error_is_clear (error, __FILE__, __LINE__, _DBUS_FUNCTION_NAME)
261
268#define _DBUS_ASSERT_ERROR_XOR_BOOL(error, retval) _dbus_assert_error_xor_bool (error, retval, __FILE__, __LINE__, _DBUS_FUNCTION_NAME)
269#endif
270
271#define _dbus_return_if_error_is_set(error) _dbus_return_if_fail ((error) == NULL || !dbus_error_is_set ((error)))
272#define _dbus_return_val_if_error_is_set(error, val) _dbus_return_val_if_fail ((error) == NULL || !dbus_error_is_set ((error)), (val))
273
274/* This alignment thing is from ORBit2 */
275/* Align a value upward to a boundary, expressed as a number of bytes.
276 * E.g. align to an 8-byte boundary with argument of 8.
277 */
278
279/*
280 * (this + boundary - 1)
281 * &
282 * ~(boundary - 1)
283 */
284
285#define _DBUS_ALIGN_VALUE(this, boundary) \
286 ((((uintptr_t) (this)) + (((size_t) (boundary)) - 1)) & \
287 (~(((size_t) (boundary)) - 1)))
288
289#define _DBUS_ALIGN_ADDRESS(this, boundary) \
290 ((void*)_DBUS_ALIGN_VALUE(this, boundary))
291
292#define _DBUS_IS_ALIGNED(this, boundary) \
293 ((((size_t) (uintptr_t) (this)) & ((size_t) (boundary) - 1)) == 0)
294
302#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L)
303typedef max_align_t dbus_max_align_t;
304#else
305typedef DBusBasicValue dbus_max_align_t;
306#endif
307
308DBUS_PRIVATE_EXPORT
309char* _dbus_strdup (const char *str);
310void* _dbus_memdup (const void *mem,
311 size_t n_bytes);
312DBUS_PRIVATE_EXPORT
313 dbus_bool_t _dbus_string_array_contains (const char **array,
314 const char *str);
315DBUS_PRIVATE_EXPORT
316size_t _dbus_string_array_length (const char **array);
317char** _dbus_dup_string_array (const char **array);
318
319#define _DBUS_INT16_MIN ((dbus_int16_t) 0x8000)
320#define _DBUS_INT16_MAX ((dbus_int16_t) 0x7fff)
321#define _DBUS_UINT16_MAX ((dbus_uint16_t)0xffff)
322#define _DBUS_INT32_MIN ((dbus_int32_t) 0x80000000)
323#define _DBUS_INT32_MAX ((dbus_int32_t) 0x7fffffff)
324#define _DBUS_UINT32_MAX ((dbus_uint32_t)0xffffffff)
325/* using 32-bit here is sort of bogus */
326#define _DBUS_INT_MIN _DBUS_INT32_MIN
327#define _DBUS_INT_MAX _DBUS_INT32_MAX
328#define _DBUS_UINT_MAX _DBUS_UINT32_MAX
329#define _DBUS_INT64_MAX DBUS_INT64_CONSTANT (0x7fffffffffffffff)
330#define _DBUS_UINT64_MAX DBUS_UINT64_CONSTANT (0xffffffffffffffff)
331#define _DBUS_ONE_KILOBYTE 1024
332#define _DBUS_ONE_MEGABYTE 1024 * _DBUS_ONE_KILOBYTE
333#define _DBUS_ONE_HOUR_IN_MILLISECONDS (1000 * 60 * 60)
334#define _DBUS_USEC_PER_SECOND (1000000)
335
336#undef MAX
337#define MAX(a, b) (((a) > (b)) ? (a) : (b))
338
339#undef MIN
340#define MIN(a, b) (((a) < (b)) ? (a) : (b))
341
342#undef ABS
343#define ABS(a) (((a) < 0) ? -(a) : (a))
344
345#define _DBUS_ISASCII(c) ((c) != '\0' && (((c) & ~0x7f) == 0))
346
347 typedef void (* DBusForeachFunction) (void *element,
348 void *data);
349
350void _dbus_verbose_bytes (const unsigned char *data,
351 int len,
352 int offset);
353DBUS_PRIVATE_EXPORT
354void _dbus_verbose_bytes_of_string (const DBusString *str,
355 int start,
356 int len);
357
358DBUS_PRIVATE_EXPORT
359extern const char *_dbus_no_memory_message;
360#define _DBUS_SET_OOM(error) dbus_set_error_const ((error), DBUS_ERROR_NO_MEMORY, _dbus_no_memory_message)
361DBUS_PRIVATE_EXPORT
362void _dbus_set_error_valist (DBusError *error,
363 const char *name,
364 const char *format,
365 va_list args) _DBUS_GNUC_PRINTF (3, 0);
366
367typedef dbus_bool_t (* DBusTestMemoryFunction) (void *data,
368 dbus_bool_t have_memory);
369
370#ifdef DBUS_ENABLE_EMBEDDED_TESTS
371/* Memory debugging */
372void _dbus_set_fail_alloc_counter (int until_next_fail);
373int _dbus_get_fail_alloc_counter (void);
374void _dbus_set_fail_alloc_failures (int failures_per_failure);
375int _dbus_get_fail_alloc_failures (void);
376 dbus_bool_t _dbus_decrement_fail_alloc_counter (void);
377 dbus_bool_t _dbus_disable_mem_pools (void);
378DBUS_PRIVATE_EXPORT
379int _dbus_get_malloc_blocks_outstanding (void);
380
381DBUS_PRIVATE_EXPORT
382 dbus_bool_t _dbus_test_oom_handling (const char *description,
383 DBusTestMemoryFunction func,
384 void *data);
385#else
386#define _dbus_set_fail_alloc_counter(n)
387#define _dbus_get_fail_alloc_counter (-1)
388
389/* These are constant expressions so that blocks
390 * they protect should be optimized away
391 */
392#define _dbus_decrement_fail_alloc_counter() (FALSE)
393#define _dbus_disable_mem_pools() (FALSE)
394#define _dbus_get_malloc_blocks_outstanding() (0)
395
396#define _dbus_test_oom_handling(description, func, data) ((*func) (data, TRUE))
397#endif /* !DBUS_ENABLE_EMBEDDED_TESTS */
398
399typedef void (* DBusShutdownFunction) (void *data);
400DBUS_PRIVATE_EXPORT
401 dbus_bool_t _dbus_register_shutdown_func (DBusShutdownFunction function,
402 void *data);
403 dbus_bool_t _dbus_register_shutdown_func_unlocked (DBusShutdownFunction function,
404 void *data);
405
406extern int _dbus_current_generation;
407
408/* The weird case convention is to avoid having to change all the callers,
409 * which would be quite a mega-patch. */
410typedef enum
411{
412 /* index 0-4 */
413 _DBUS_LOCK_list,
414 _DBUS_LOCK_connection_slots,
415 _DBUS_LOCK_pending_call_slots,
416 _DBUS_LOCK_server_slots,
417 _DBUS_LOCK_message_slots,
418 /* index 5-9 */
419 _DBUS_LOCK_bus,
420 _DBUS_LOCK_bus_datas,
421 _DBUS_LOCK_shutdown_funcs,
422 _DBUS_LOCK_system_users,
423 _DBUS_LOCK_message_cache,
424 /* index 10-12 */
425 _DBUS_LOCK_shared_connections,
426 _DBUS_LOCK_machine_uuid,
427 _DBUS_LOCK_sysdeps,
428
429 _DBUS_N_GLOBAL_LOCKS
430} DBusGlobalLock;
431
432_DBUS_WARN_UNUSED_RESULT
433 dbus_bool_t _dbus_lock (DBusGlobalLock lock);
434void _dbus_unlock (DBusGlobalLock lock);
435
436#define _DBUS_LOCK_NAME(name) _DBUS_LOCK_##name
437#define _DBUS_LOCK(name) _dbus_lock (_DBUS_LOCK_##name)
438#define _DBUS_UNLOCK(name) _dbus_unlock (_DBUS_LOCK_##name)
439
440DBUS_PRIVATE_EXPORT
441 dbus_bool_t _dbus_address_append_escaped (DBusString *escaped,
442 const DBusString *unescaped);
443
444void _dbus_set_bad_address (DBusError *error,
445 const char *address_problem_type,
446 const char *address_problem_field,
447 const char *address_problem_other);
448
449#define DBUS_UUID_LENGTH_BYTES 16
450#define DBUS_UUID_LENGTH_WORDS (DBUS_UUID_LENGTH_BYTES / 4)
451#define DBUS_UUID_LENGTH_HEX (DBUS_UUID_LENGTH_BYTES * 2)
452
457 union DBusGUID
458{
459 dbus_uint32_t as_uint32s[DBUS_UUID_LENGTH_WORDS];
460 char as_bytes[DBUS_UUID_LENGTH_BYTES];
461};
462
463DBUS_PRIVATE_EXPORT _DBUS_WARN_UNUSED_RESULT
464 dbus_bool_t _dbus_generate_uuid (DBusGUID *uuid,
465 DBusError *error);
466DBUS_PRIVATE_EXPORT
467 dbus_bool_t _dbus_uuid_encode (const DBusGUID *uuid,
468 DBusString *encoded);
469 dbus_bool_t _dbus_read_uuid_file (const DBusString *filename,
470 DBusGUID *uuid,
471 dbus_bool_t create_if_not_found,
472 DBusError *error);
473
474 dbus_bool_t _dbus_write_uuid_file (const DBusString *filename,
475 const DBusGUID *uuid,
476 DBusError *error);
477
478DBUS_PRIVATE_EXPORT
479 dbus_bool_t _dbus_get_local_machine_uuid_encoded (DBusString *uuid_str,
480 DBusError *error);
481
482#define _DBUS_PASTE2(a, b) a ## b
483#define _DBUS_PASTE(a, b) _DBUS_PASTE2 (a, b)
484#define _DBUS_STATIC_ASSERT(expr) \
485 typedef struct { char _assertion[(expr) ? 1 : -1]; } \
486 _DBUS_PASTE (_DBUS_STATIC_ASSERT_, __LINE__) _DBUS_GNUC_UNUSED
487
488#define _DBUS_STRINGIFY(x) #x
489#define _DBUS_FILE_LINE __FILE__ ":" _DBUS_STRINGIFY(__LINE__)
490
491#ifndef __has_feature
492# define __has_feature(x) 0
493#endif
494
495/* MSVC defines __SANITIZE_ADDRESS__, but does not provide the special
496 * builtins associated with it. */
497#if ((defined(__SANITIZE_ADDRESS__) || __has_feature(address_sanitizer)) && \
498 !defined(_MSC_VER))
499# include <sanitizer/lsan_interface.h>
500/* Defined if we are building with AddressSanitizer */
501# define _DBUS_ADDRESS_SANITIZER
502/* Ignore memory allocations until the next _DBUS_END_IGNORE_LEAKS when
503 * checking for memory leaks */
504# define _DBUS_BEGIN_IGNORE_LEAKS __lsan_disable ()
505/* End the scope of a previous _DBUS_BEGIN_IGNORE_LEAKS */
506# define _DBUS_END_IGNORE_LEAKS __lsan_enable ()
507#else
508# undef _DBUS_ADDRESS_SANITIZER
509# define _DBUS_BEGIN_IGNORE_LEAKS do { } while (0)
510# define _DBUS_END_IGNORE_LEAKS do { } while (0)
511#endif
512
516#ifdef DBUS_WIN
517#define DBUS_IS_DIR_SEPARATOR(c) (c == '\\' || c == '/')
518#define DBUS_DIR_SEPARATOR '\\'
519#define DBUS_DIR_SEPARATOR_S "\\"
520#else
521#define DBUS_IS_DIR_SEPARATOR(c) (c == '/')
522#define DBUS_DIR_SEPARATOR '/'
523#define DBUS_DIR_SEPARATOR_S "/"
524#endif
525
526 DBUS_END_DECLS
527
528#endif /* DBUS_INTERNALS_H */
_dbus_address_append_escaped
DBUS_PRIVATE_EXPORT dbus_bool_t _dbus_address_append_escaped(DBusString *escaped, const DBusString *unescaped)
Appends an escaped version of one string to another string, using the D-Bus address escaping mechanis...
Definition dbus-address.c:109
_dbus_set_bad_address
void _dbus_set_bad_address(DBusError *error, const char *address_problem_type, const char *address_problem_field, const char *address_problem_other)
Sets DBUS_ERROR_BAD_ADDRESS.
Definition dbus-address.c:70
dbus_error_is_set
dbus_bool_t dbus_error_is_set(const DBusError *error)
Checks whether an error occurred (the error is set).
Definition dbus-errors.c:331
DBusForeachFunction
void(* DBusForeachFunction)(void *element, void *data)
Used to iterate over each item in a collection, such as a DBusList.
Definition dbus-internals.h:347
_dbus_real_assert_not_reached
DBUS_PRIVATE_EXPORT void _dbus_real_assert_not_reached(const char *explanation, const char *file, int line) _DBUS_GNUC_NORETURN
Internals of _dbus_assert_not_reached(); it's a function rather than a macro with the inline code so ...
Definition dbus-internals.c:1067
_dbus_generate_uuid
DBUS_PRIVATE_EXPORT _DBUS_WARN_UNUSED_RESULT dbus_bool_t _dbus_generate_uuid(DBusGUID *uuid, DBusError *error)
Generates a new UUID.
Definition dbus-internals.c:752
_dbus_warn_check_failed
void _dbus_warn_check_failed(const char *format,...)
Prints a "critical" warning to stderr when an assertion fails; differs from _dbus_warn primarily in t...
Definition dbus-internals.c:310
_dbus_strdup
DBUS_PRIVATE_EXPORT char * _dbus_strdup(const char *str)
Duplicates a string.
Definition dbus-internals.c:621
_dbus_read_uuid_file
dbus_bool_t _dbus_read_uuid_file(const DBusString *filename, DBusGUID *uuid, dbus_bool_t create_if_not_found, DBusError *error)
Reads (and optionally writes) a uuid to a file.
Definition dbus-internals.c:931
_dbus_string_array_contains
DBUS_PRIVATE_EXPORT dbus_bool_t _dbus_string_array_contains(const char **array, const char *str)
Checks whether a string array contains the given string.
Definition dbus-internals.c:712
_dbus_get_local_machine_uuid_encoded
DBUS_PRIVATE_EXPORT dbus_bool_t _dbus_get_local_machine_uuid_encoded(DBusString *uuid_str, DBusError *error)
Gets the hex-encoded UUID of the machine this function is executed on.
Definition dbus-internals.c:983
_dbus_real_assert
DBUS_PRIVATE_EXPORT void _dbus_real_assert(dbus_bool_t condition, const char *condition_text, const char *file, int line, const char *func)
Internals of _dbus_assert(); it's a function rather than a macro with the inline code so that the ass...
Definition dbus-internals.c:1042
_dbus_write_uuid_file
dbus_bool_t _dbus_write_uuid_file(const DBusString *filename, const DBusGUID *uuid, DBusError *error)
Write the give UUID to a file.
Definition dbus-internals.c:882
_dbus_warn
DBUS_PRIVATE_EXPORT void _dbus_warn(const char *format,...)
Prints a warning message to stderr.
Definition dbus-internals.c:278
_dbus_string_array_length
DBUS_PRIVATE_EXPORT size_t _dbus_string_array_length(const char **array)
Returns the size of a string array.
Definition dbus-internals.c:735
_dbus_no_memory_message
const char * _dbus_no_memory_message
Fixed "out of memory" error message, just to avoid making up a different string every time and wastin...
Definition dbus-internals.c:216
_dbus_memdup
void * _dbus_memdup(const void *mem, size_t n_bytes)
Duplicates a block of memory.
Definition dbus-internals.c:649
_dbus_uuid_encode
DBUS_PRIVATE_EXPORT dbus_bool_t _dbus_uuid_encode(const DBusGUID *uuid, DBusString *encoded)
Hex-encode a UUID.
Definition dbus-internals.c:788
_dbus_dup_string_array
char ** _dbus_dup_string_array(const char **array)
Duplicates a string array.
Definition dbus-internals.c:672
NULL
#define NULL
A null pointer, defined appropriately for C or C++.
Definition dbus-macros.h:51
DBUS_BEGIN_DECLS
#define DBUS_BEGIN_DECLS
Macro used prior to declaring functions in the D-Bus header files.
Definition dbus-macros.h:36
DBUS_END_DECLS
#define DBUS_END_DECLS
Macro used after declaring functions in the D-Bus header files.
Definition dbus-macros.h:37
_dbus_verbose_bytes_of_string
DBUS_PRIVATE_EXPORT void _dbus_verbose_bytes_of_string(const DBusString *str, int start, int len)
Dump the given part of the string to verbose log.
Definition dbus-marshal-basic.c:1428
_dbus_verbose_bytes
void _dbus_verbose_bytes(const unsigned char *data, int len, int offset)
If in verbose mode, print a block of binary data.
Definition dbus-marshal-basic.c:1351
_dbus_current_generation
int _dbus_current_generation
_dbus_current_generation is used to track each time that dbus_shutdown() is called,...
Definition dbus-memory.c:790
_dbus_register_shutdown_func
DBUS_PRIVATE_EXPORT dbus_bool_t _dbus_register_shutdown_func(DBusShutdownFunction function, void *data)
Register a cleanup function to be called exactly once the next time dbus_shutdown() is called.
Definition dbus-memory.c:819
dbus_uint32_t
unsigned int dbus_uint32_t
A 32-bit unsigned integer on all platforms.
Definition dbus-arch-deps.h:45
dbus_bool_t
dbus_uint32_t dbus_bool_t
A boolean, valid values are TRUE and FALSE.
Definition dbus-types.h:37
DBusError
Object representing an exception.
Definition dbus-errors.h:51
DBusString
Definition dbus-string.h:47
DBusBasicValue
A simple value union that lets you access bytes as if they were various types; useful when dealing wi...
Definition dbus-types.h:161
DBusGUID
A globally unique ID ; we have one for each DBusServer, and also one for each machine with libdbus in...
Definition dbus-internals.h:458
DBusGUID::as_uint32s
dbus_uint32_t as_uint32s[DBUS_UUID_LENGTH_WORDS]
guid as four uint32 values
Definition dbus-internals.h:459
DBusGUID::as_bytes
char as_bytes[DBUS_UUID_LENGTH_BYTES]
guid as 16 single-byte values
Definition dbus-internals.h:460