D-Bus 1.15.2
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 * Licensed under the Academic Free License version 2.1
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 *
22 */
23#ifdef DBUS_INSIDE_DBUS_H
24#error "You can't include dbus-internals.h in the public header dbus.h"
25#endif
26
27#ifndef DBUS_INTERNALS_H
28#define DBUS_INTERNALS_H
29
30#include <dbus/dbus-memory.h>
31#include <dbus/dbus-types.h>
32#include <dbus/dbus-errors.h>
33#include <dbus/dbus-sysdeps.h>
34#include <dbus/dbus-macros-internal.h>
35#include <dbus/dbus-threads-internal.h>
36
38
39DBUS_PRIVATE_EXPORT
40void _dbus_warn (const char *format,
41 ...) _DBUS_GNUC_PRINTF (1, 2);
42
43DBUS_PRIVATE_EXPORT
44void _dbus_warn_check_failed (const char *format,
45 ...) _DBUS_GNUC_PRINTF (1, 2);
46DBUS_PRIVATE_EXPORT
47void _dbus_warn_return_if_fail (const char *function,
48 const char *assertion,
49 const char *file,
50 int line);
51
52DBUS_EMBEDDED_TESTS_EXPORT
53int _dbus_get_check_failed_count (void);
54
55#if defined (__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
56#define _DBUS_FUNCTION_NAME __func__
57#elif defined(__GNUC__) || defined(_MSC_VER)
58#define _DBUS_FUNCTION_NAME __FUNCTION__
59#else
60#define _DBUS_FUNCTION_NAME "unknown function"
61#endif
62
63/*
64 * (code from GLib)
65 *
66 * The _DBUS_LIKELY and _DBUS_UNLIKELY macros let the programmer give hints to
67 * the compiler about the expected result of an expression. Some compilers
68 * can use this information for optimizations.
69 *
70 * The _DBUS_BOOLEAN_EXPR macro is intended to trigger a gcc warning when
71 * putting assignments in the macro arg
72 */
73#if defined(__GNUC__) && (__GNUC__ > 2) && defined(__OPTIMIZE__)
74#define _DBUS_BOOLEAN_EXPR(expr) \
75 __extension__ ({ \
76 int _dbus_boolean_var_; \
77 if (expr) \
78 _dbus_boolean_var_ = 1; \
79 else \
80 _dbus_boolean_var_ = 0; \
81 _dbus_boolean_var_; \
82})
83#define _DBUS_LIKELY(expr) (__builtin_expect (_DBUS_BOOLEAN_EXPR(expr), 1))
84#define _DBUS_UNLIKELY(expr) (__builtin_expect (_DBUS_BOOLEAN_EXPR(expr), 0))
85#else
86#define _DBUS_LIKELY(expr) (expr)
87#define _DBUS_UNLIKELY(expr) (expr)
88#endif
89
90#ifdef DBUS_ENABLE_VERBOSE_MODE
91
92/*
93 at least gnu cc and msvc compiler are known to
94 have support for variable macro argument lists
95 add other compilers is required
96*/
97#if defined(__GNUC__) || defined(_MSC_VER)
98#define DBUS_CPP_SUPPORTS_VARIABLE_MACRO_ARGUMENTS
99#endif
100
101#ifdef DBUS_CPP_SUPPORTS_VARIABLE_MACRO_ARGUMENTS
102DBUS_PRIVATE_EXPORT
103void _dbus_verbose_real (const char *file, const int line, const char *function,
104 const char *format,...) _DBUS_GNUC_PRINTF (4, 5);
105# define _dbus_verbose(fmt,...) _dbus_verbose_real( __FILE__,__LINE__,__FUNCTION__,fmt, ## __VA_ARGS__)
106#else
107DBUS_PRIVATE_EXPORT
108void _dbus_verbose_real (const char *format,
109 ...) _DBUS_GNUC_PRINTF (1, 2);
110# define _dbus_verbose _dbus_verbose_real
111#endif
112DBUS_PRIVATE_EXPORT
113void _dbus_verbose_reset_real (void);
114DBUS_PRIVATE_EXPORT
115dbus_bool_t _dbus_is_verbose_real (void);
116DBUS_PRIVATE_EXPORT
117dbus_bool_t _dbus_get_verbose (void);
118DBUS_PRIVATE_EXPORT
119void _dbus_set_verbose (dbus_bool_t state);
120void _dbus_verbose_raw (const char *s);
121
122# define _dbus_verbose_reset _dbus_verbose_reset_real
123# define _dbus_is_verbose _dbus_is_verbose_real
124#else
125# define _dbus_verbose(...) do { } while (0)
126# define _dbus_verbose_reset() do { } while (0)
127# define _dbus_is_verbose() FALSE
128#endif /* !DBUS_ENABLE_VERBOSE_MODE */
129
130DBUS_PRIVATE_EXPORT
131void _dbus_trace_ref (const char *obj_name,
132 void *obj,
133 int old_refcount,
134 int new_refcount,
135 const char *why,
136 const char *env_var,
137 int *enabled);
138
139DBUS_PRIVATE_EXPORT
140const char* _dbus_strerror (int error_number);
141
142#ifdef DBUS_DISABLE_ASSERT
143#define _dbus_assert(condition) do { } while (0)
144#else
145DBUS_PRIVATE_EXPORT
146void _dbus_real_assert (dbus_bool_t condition,
147 const char *condition_text,
148 const char *file,
149 int line,
150 const char *func);
151#define _dbus_assert(condition) \
152 _dbus_real_assert ((condition) != 0, #condition, __FILE__, __LINE__, _DBUS_FUNCTION_NAME)
153#endif /* !DBUS_DISABLE_ASSERT */
154
155#ifdef DBUS_DISABLE_ASSERT
156#define _dbus_assert_not_reached(explanation) do { } while (0)
157#else
158DBUS_PRIVATE_EXPORT
159void _dbus_real_assert_not_reached (const char *explanation,
160 const char *file,
161 int line) _DBUS_GNUC_NORETURN;
162#define _dbus_assert_not_reached(explanation) \
163 _dbus_real_assert_not_reached (explanation, __FILE__, __LINE__)
164#endif /* !DBUS_DISABLE_ASSERT */
165
166#ifdef DBUS_DISABLE_CHECKS
167#define _dbus_return_if_fail(condition)
168#define _dbus_return_val_if_fail(condition, val)
169#else
170
171#define _dbus_return_if_fail(condition) do { \
172 _dbus_assert ((*(const char*)_DBUS_FUNCTION_NAME) != '_'); \
173 if (!(condition)) { \
174 _dbus_warn_return_if_fail (_DBUS_FUNCTION_NAME, #condition, __FILE__, __LINE__); \
175 return; \
176 } } while (0)
177
178#define _dbus_return_val_if_fail(condition, val) do { \
179 _dbus_assert ((*(const char*)_DBUS_FUNCTION_NAME) != '_'); \
180 if (!(condition)) { \
181 _dbus_warn_return_if_fail (_DBUS_FUNCTION_NAME, #condition, __FILE__, __LINE__); \
182 return (val); \
183 } } while (0)
184
185#endif /* !DBUS_DISABLE_ASSERT */
186
187#define _DBUS_N_ELEMENTS(array) ((int) (sizeof ((array)) / sizeof ((array)[0])))
188
189#define _DBUS_POINTER_TO_INT(pointer) ((intptr_t)(pointer))
190#define _DBUS_INT_TO_POINTER(integer) ((void*)((intptr_t)(integer)))
191
192#define _DBUS_ZERO(object) (memset (&(object), '\0', sizeof ((object))))
193
194#ifdef offsetof
195#define _DBUS_STRUCT_OFFSET(struct_type, member) \
196 (offsetof (struct_type, member))
197#else
198#define _DBUS_STRUCT_OFFSET(struct_type, member) \
199 ((intptr_t) ((unsigned char*) &((struct_type*) 0)->member))
200#endif
201
202#define _DBUS_ALIGNOF(type) \
203 (_DBUS_STRUCT_OFFSET (struct { char _1; type _2; }, _2))
204
205#if defined(DBUS_DISABLE_CHECKS) || defined(DBUS_DISABLE_ASSERT)
206/* this is an assert and not an error, but in the typical --disable-checks case (you're trying
207 * to really minimize code size), disabling these assertions makes sense.
208 */
209#define _DBUS_ASSERT_ERROR_IS_SET(error) do { } while (0)
210#define _DBUS_ASSERT_ERROR_IS_CLEAR(error) do { } while (0)
211#define _DBUS_ASSERT_ERROR_XOR_BOOL(error, retval) do { } while (0)
212#else
213static inline void
214_dbus_assert_error_is_set (const DBusError *error,
215 const char *file,
216 int line,
217 const char *func)
218{
219 _dbus_real_assert (error == NULL || dbus_error_is_set (error),
220 "error is set", file, line, func);
221}
222
223static inline void
224_dbus_assert_error_is_clear (const DBusError *error,
225 const char *file,
226 int line,
227 const char *func)
228{
229 _dbus_real_assert (error == NULL || !dbus_error_is_set (error),
230 "error is clear", file, line, func);
231}
232
233static inline void
234_dbus_assert_error_xor_bool (const DBusError *error,
235 dbus_bool_t retval,
236 const char *file,
237 int line,
238 const char *func)
239{
240 _dbus_real_assert (error == NULL || dbus_error_is_set (error) == !retval,
241 "error is consistent with boolean result", file, line, func);
242}
243
248#define _DBUS_ASSERT_ERROR_IS_SET(error) _dbus_assert_error_is_set (error, __FILE__, __LINE__, _DBUS_FUNCTION_NAME)
249
254#define _DBUS_ASSERT_ERROR_IS_CLEAR(error) _dbus_assert_error_is_clear (error, __FILE__, __LINE__, _DBUS_FUNCTION_NAME)
255
262#define _DBUS_ASSERT_ERROR_XOR_BOOL(error, retval) _dbus_assert_error_xor_bool (error, retval, __FILE__, __LINE__, _DBUS_FUNCTION_NAME)
263#endif
264
265#define _dbus_return_if_error_is_set(error) _dbus_return_if_fail ((error) == NULL || !dbus_error_is_set ((error)))
266#define _dbus_return_val_if_error_is_set(error, val) _dbus_return_val_if_fail ((error) == NULL || !dbus_error_is_set ((error)), (val))
267
268/* This alignment thing is from ORBit2 */
269/* Align a value upward to a boundary, expressed as a number of bytes.
270 * E.g. align to an 8-byte boundary with argument of 8.
271 */
272
273/*
274 * (this + boundary - 1)
275 * &
276 * ~(boundary - 1)
277 */
278
279#define _DBUS_ALIGN_VALUE(this, boundary) \
280 ((((uintptr_t) (this)) + (((size_t) (boundary)) - 1)) & \
281 (~(((size_t) (boundary)) - 1)))
282
283#define _DBUS_ALIGN_ADDRESS(this, boundary) \
284 ((void*)_DBUS_ALIGN_VALUE(this, boundary))
285
286#define _DBUS_IS_ALIGNED(this, boundary) \
287 ((((size_t) (uintptr_t) (this)) & ((size_t) (boundary) - 1)) == 0)
288
296#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L)
297typedef max_align_t dbus_max_align_t;
298#else
300#endif
301
302DBUS_PRIVATE_EXPORT
303char* _dbus_strdup (const char *str);
304void* _dbus_memdup (const void *mem,
305 size_t n_bytes);
306DBUS_PRIVATE_EXPORT
307dbus_bool_t _dbus_string_array_contains (const char **array,
308 const char *str);
309DBUS_PRIVATE_EXPORT
310size_t _dbus_string_array_length (const char **array);
311char** _dbus_dup_string_array (const char **array);
312
313#define _DBUS_INT16_MIN ((dbus_int16_t) 0x8000)
314#define _DBUS_INT16_MAX ((dbus_int16_t) 0x7fff)
315#define _DBUS_UINT16_MAX ((dbus_uint16_t)0xffff)
316#define _DBUS_INT32_MIN ((dbus_int32_t) 0x80000000)
317#define _DBUS_INT32_MAX ((dbus_int32_t) 0x7fffffff)
318#define _DBUS_UINT32_MAX ((dbus_uint32_t)0xffffffff)
319/* using 32-bit here is sort of bogus */
320#define _DBUS_INT_MIN _DBUS_INT32_MIN
321#define _DBUS_INT_MAX _DBUS_INT32_MAX
322#define _DBUS_UINT_MAX _DBUS_UINT32_MAX
323#define _DBUS_INT64_MAX DBUS_INT64_CONSTANT (0x7fffffffffffffff)
324#define _DBUS_UINT64_MAX DBUS_UINT64_CONSTANT (0xffffffffffffffff)
325#define _DBUS_ONE_KILOBYTE 1024
326#define _DBUS_ONE_MEGABYTE 1024 * _DBUS_ONE_KILOBYTE
327#define _DBUS_ONE_HOUR_IN_MILLISECONDS (1000 * 60 * 60)
328#define _DBUS_USEC_PER_SECOND (1000000)
329
330#undef MAX
331#define MAX(a, b) (((a) > (b)) ? (a) : (b))
332
333#undef MIN
334#define MIN(a, b) (((a) < (b)) ? (a) : (b))
335
336#undef ABS
337#define ABS(a) (((a) < 0) ? -(a) : (a))
338
339#define _DBUS_ISASCII(c) ((c) != '\0' && (((c) & ~0x7f) == 0))
340
341typedef void (* DBusForeachFunction) (void *element,
342 void *data);
343
344void _dbus_verbose_bytes (const unsigned char *data,
345 int len,
346 int offset);
347DBUS_PRIVATE_EXPORT
349 int start,
350 int len);
351
352DBUS_PRIVATE_EXPORT
353extern const char *_dbus_no_memory_message;
354#define _DBUS_SET_OOM(error) dbus_set_error_const ((error), DBUS_ERROR_NO_MEMORY, _dbus_no_memory_message)
355DBUS_PRIVATE_EXPORT
356void _dbus_set_error_valist (DBusError *error,
357 const char *name,
358 const char *format,
359 va_list args) _DBUS_GNUC_PRINTF (3, 0);
360
361typedef dbus_bool_t (* DBusTestMemoryFunction) (void *data,
362 dbus_bool_t have_memory);
363
364#ifdef DBUS_ENABLE_EMBEDDED_TESTS
365/* Memory debugging */
366void _dbus_set_fail_alloc_counter (int until_next_fail);
367int _dbus_get_fail_alloc_counter (void);
368void _dbus_set_fail_alloc_failures (int failures_per_failure);
369int _dbus_get_fail_alloc_failures (void);
370dbus_bool_t _dbus_decrement_fail_alloc_counter (void);
371dbus_bool_t _dbus_disable_mem_pools (void);
372DBUS_PRIVATE_EXPORT
373int _dbus_get_malloc_blocks_outstanding (void);
374
375DBUS_PRIVATE_EXPORT
376dbus_bool_t _dbus_test_oom_handling (const char *description,
377 DBusTestMemoryFunction func,
378 void *data);
379#else
380#define _dbus_set_fail_alloc_counter(n)
381#define _dbus_get_fail_alloc_counter _DBUS_INT_MAX
382
383/* These are constant expressions so that blocks
384 * they protect should be optimized away
385 */
386#define _dbus_decrement_fail_alloc_counter() (FALSE)
387#define _dbus_disable_mem_pools() (FALSE)
388#define _dbus_get_malloc_blocks_outstanding() (0)
389
390#define _dbus_test_oom_handling(description, func, data) ((*func) (data, TRUE))
391#endif /* !DBUS_ENABLE_EMBEDDED_TESTS */
392
393typedef void (* DBusShutdownFunction) (void *data);
394DBUS_PRIVATE_EXPORT
395dbus_bool_t _dbus_register_shutdown_func (DBusShutdownFunction function,
396 void *data);
397dbus_bool_t _dbus_register_shutdown_func_unlocked (DBusShutdownFunction function,
398 void *data);
399
400extern int _dbus_current_generation;
401
402/* The weird case convention is to avoid having to change all the callers,
403 * which would be quite a mega-patch. */
404typedef enum
405{
406 /* index 0-4 */
407 _DBUS_LOCK_list,
408 _DBUS_LOCK_connection_slots,
409 _DBUS_LOCK_pending_call_slots,
410 _DBUS_LOCK_server_slots,
411 _DBUS_LOCK_message_slots,
412 /* index 5-9 */
413 _DBUS_LOCK_bus,
414 _DBUS_LOCK_bus_datas,
415 _DBUS_LOCK_shutdown_funcs,
416 _DBUS_LOCK_system_users,
417 _DBUS_LOCK_message_cache,
418 /* index 10-12 */
419 _DBUS_LOCK_shared_connections,
420 _DBUS_LOCK_machine_uuid,
421 _DBUS_LOCK_sysdeps,
422
423 _DBUS_N_GLOBAL_LOCKS
424} DBusGlobalLock;
425
426_DBUS_WARN_UNUSED_RESULT
427dbus_bool_t _dbus_lock (DBusGlobalLock lock);
428void _dbus_unlock (DBusGlobalLock lock);
429
430#define _DBUS_LOCK_NAME(name) _DBUS_LOCK_##name
431#define _DBUS_LOCK(name) _dbus_lock (_DBUS_LOCK_##name)
432#define _DBUS_UNLOCK(name) _dbus_unlock (_DBUS_LOCK_##name)
433
434DBUS_PRIVATE_EXPORT
436 const DBusString *unescaped);
437
439 const char *address_problem_type,
440 const char *address_problem_field,
441 const char *address_problem_other);
442
443#define DBUS_UUID_LENGTH_BYTES 16
444#define DBUS_UUID_LENGTH_WORDS (DBUS_UUID_LENGTH_BYTES / 4)
445#define DBUS_UUID_LENGTH_HEX (DBUS_UUID_LENGTH_BYTES * 2)
446
452{
453 dbus_uint32_t as_uint32s[DBUS_UUID_LENGTH_WORDS];
454 char as_bytes[DBUS_UUID_LENGTH_BYTES];
455};
456
457DBUS_PRIVATE_EXPORT _DBUS_WARN_UNUSED_RESULT
459 DBusError *error);
460DBUS_PRIVATE_EXPORT
462 DBusString *encoded);
464 DBusGUID *uuid,
465 dbus_bool_t create_if_not_found,
466 DBusError *error);
467
469 const DBusGUID *uuid,
470 DBusError *error);
471
472DBUS_PRIVATE_EXPORT
474 DBusError *error);
475
476#define _DBUS_PASTE2(a, b) a ## b
477#define _DBUS_PASTE(a, b) _DBUS_PASTE2 (a, b)
478#define _DBUS_STATIC_ASSERT(expr) \
479 typedef struct { char _assertion[(expr) ? 1 : -1]; } \
480 _DBUS_PASTE (_DBUS_STATIC_ASSERT_, __LINE__) _DBUS_GNUC_UNUSED
481
482#define _DBUS_STRINGIFY(x) #x
483#define _DBUS_FILE_LINE __FILE__ ":" _DBUS_STRINGIFY(__LINE__)
484
485#ifndef __has_feature
486# define __has_feature(x) 0
487#endif
488
489/* MSVC defines __SANITIZE_ADDRESS__, but does not provide the special
490 * builtins associated with it. */
491#if ((defined(__SANITIZE_ADDRESS__) || __has_feature(address_sanitizer)) && \
492 !defined(_MSC_VER))
493# include <sanitizer/lsan_interface.h>
494/* Defined if we are building with AddressSanitizer */
495# define _DBUS_ADDRESS_SANITIZER
496/* Ignore memory allocations until the next _DBUS_END_IGNORE_LEAKS when
497 * checking for memory leaks */
498# define _DBUS_BEGIN_IGNORE_LEAKS __lsan_disable ()
499/* End the scope of a previous _DBUS_BEGIN_IGNORE_LEAKS */
500# define _DBUS_END_IGNORE_LEAKS __lsan_enable ()
501#else
502# undef _DBUS_ADDRESS_SANITIZER
503# define _DBUS_BEGIN_IGNORE_LEAKS do { } while (0)
504# define _DBUS_END_IGNORE_LEAKS do { } while (0)
505#endif
506
510#ifdef DBUS_WIN
511#define DBUS_IS_DIR_SEPARATOR(c) (c == '\\' || c == '/')
512#define DBUS_DIR_SEPARATOR '\\'
513#define DBUS_DIR_SEPARATOR_S "\\"
514#else
515#define DBUS_IS_DIR_SEPARATOR(c) (c == '/')
516#define DBUS_DIR_SEPARATOR '/'
517#define DBUS_DIR_SEPARATOR_S "/"
518#endif
519
521
522#endif /* DBUS_INTERNALS_H */
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:107
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:68
dbus_bool_t dbus_error_is_set(const DBusError *error)
Checks whether an error occurred (the error is set).
Definition: dbus-errors.c:329
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 ...
DBUS_PRIVATE_EXPORT _DBUS_WARN_UNUSED_RESULT dbus_bool_t _dbus_generate_uuid(DBusGUID *uuid, DBusError *error)
Generates a new UUID.
DBUS_PRIVATE_EXPORT 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...
void(* DBusForeachFunction)(void *element, void *data)
Used to iterate over each item in a collection, such as a DBusList.
DBUS_PRIVATE_EXPORT char * _dbus_strdup(const char *str)
Duplicates a string.
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.
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.
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.
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...
dbus_bool_t _dbus_write_uuid_file(const DBusString *filename, const DBusGUID *uuid, DBusError *error)
Write the give UUID to a file.
DBUS_PRIVATE_EXPORT void _dbus_warn(const char *format,...)
Prints a warning message to stderr.
DBUS_PRIVATE_EXPORT size_t _dbus_string_array_length(const char **array)
Returns the size of a string array.
DBUS_PRIVATE_EXPORT const char * _dbus_no_memory_message
Fixed "out of memory" error message, just to avoid making up a different string every time and wastin...
void * _dbus_memdup(const void *mem, size_t n_bytes)
Duplicates a block of memory.
DBUS_PRIVATE_EXPORT dbus_bool_t _dbus_uuid_encode(const DBusGUID *uuid, DBusString *encoded)
Hex-encode a UUID.
char ** _dbus_dup_string_array(const char **array)
Duplicates a string array.
#define NULL
A null pointer, defined appropriately for C or C++.
#define DBUS_BEGIN_DECLS
Macro used prior to declaring functions in the D-Bus header files.
#define DBUS_END_DECLS
Macro used after declaring functions in the D-Bus header files.
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.
void _dbus_verbose_bytes(const unsigned char *data, int len, int offset)
If in verbose mode, print a block of binary data.
int _dbus_current_generation
_dbus_current_generation is used to track each time that dbus_shutdown() is called,...
Definition: dbus-memory.c:772
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:801
dbus_uint32_t dbus_bool_t
A boolean, valid values are TRUE and FALSE.
Definition: dbus-types.h:35
unsigned int dbus_uint32_t
A 32-bit unsigned integer on all platforms.
Object representing an exception.
Definition: dbus-errors.h:49
A simple value union that lets you access bytes as if they were various types; useful when dealing wi...
Definition: dbus-types.h:159
A globally unique ID ; we have one for each DBusServer, and also one for each machine with libdbus in...
dbus_uint32_t as_uint32s[DBUS_UUID_LENGTH_WORDS]
guid as four uint32 values
char as_bytes[DBUS_UUID_LENGTH_BYTES]
guid as 16 single-byte values