00001
00002
00003
00004
00005
00006
00007
00008
00009
00010
00011
00012
00013
00014
00015
00016
00017
00018
00019
00020
00021
00022
00023 #ifdef DBUS_INSIDE_DBUS_H
00024 #error "You can't include dbus-internals.h in the public header dbus.h"
00025 #endif
00026
00027 #ifndef DBUS_INTERNALS_H
00028 #define DBUS_INTERNALS_H
00029
00030 #include <config.h>
00031
00032 #include <dbus/dbus-memory.h>
00033 #include <dbus/dbus-types.h>
00034 #include <dbus/dbus-errors.h>
00035 #include <dbus/dbus-sysdeps.h>
00036 #include <dbus/dbus-threads-internal.h>
00037
00038 DBUS_BEGIN_DECLS
00039
00040 void _dbus_warn (const char *format,
00041 ...) _DBUS_GNUC_PRINTF (1, 2);
00042
00043 #if defined (__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
00044 #define _DBUS_FUNCTION_NAME __func__
00045 #elif defined(__GNUC__)
00046 #define _DBUS_FUNCTION_NAME __FUNCTION__
00047 #else
00048 #define _DBUS_FUNCTION_NAME "unknown function"
00049 #endif
00050
00051
00052
00053
00054
00055
00056
00057
00058
00059
00060
00061 #if defined(__GNUC__) && (__GNUC__ > 2) && defined(__OPTIMIZE__)
00062 #define _DBUS_BOOLEAN_EXPR(expr) \
00063 __extension__ ({ \
00064 int _dbus_boolean_var_; \
00065 if (expr) \
00066 _dbus_boolean_var_ = 1; \
00067 else \
00068 _dbus_boolean_var_ = 0; \
00069 _dbus_boolean_var_; \
00070 })
00071 #define _DBUS_LIKELY(expr) (__builtin_expect (_DBUS_BOOLEAN_EXPR(expr), 1))
00072 #define _DBUS_UNLIKELY(expr) (__builtin_expect (_DBUS_BOOLEAN_EXPR(expr), 0))
00073 #else
00074 #define _DBUS_LIKELY(expr) (expr)
00075 #define _DBUS_UNLIKELY(expr) (expr)
00076 #endif
00077
00078 #ifdef DBUS_ENABLE_VERBOSE_MODE
00079
00080 void _dbus_verbose_real (const char *format,
00081 ...) _DBUS_GNUC_PRINTF (1, 2);
00082 void _dbus_verbose_reset_real (void);
00083 dbus_bool_t _dbus_is_verbose_real (void);
00084
00085 # define _dbus_verbose _dbus_verbose_real
00086 # define _dbus_verbose_reset _dbus_verbose_reset_real
00087 # define _dbus_is_verbose _dbus_is_verbose_real
00088 #else
00089 # ifdef HAVE_ISO_VARARGS
00090 # define _dbus_verbose(...)
00091 # elif defined (HAVE_GNUC_VARARGS)
00092 # define _dbus_verbose(format...)
00093 # else
00094 # error "This compiler does not support varargs macros and thus verbose mode can't be disabled meaningfully"
00095 # endif
00096 # define _dbus_verbose_reset()
00097 # define _dbus_is_verbose() FALSE
00098 #endif
00099
00100 const char* _dbus_strerror (int error_number);
00101
00102 #ifdef DBUS_DISABLE_ASSERT
00103 #define _dbus_assert(condition)
00104 #else
00105 void _dbus_real_assert (dbus_bool_t condition,
00106 const char *condition_text,
00107 const char *file,
00108 int line,
00109 const char *func);
00110 #define _dbus_assert(condition) \
00111 _dbus_real_assert ((condition) != 0, #condition, __FILE__, __LINE__, _DBUS_FUNCTION_NAME)
00112 #endif
00113
00114 #ifdef DBUS_DISABLE_ASSERT
00115 #define _dbus_assert_not_reached(explanation)
00116 #else
00117 void _dbus_real_assert_not_reached (const char *explanation,
00118 const char *file,
00119 int line) _DBUS_GNUC_NORETURN;
00120 #define _dbus_assert_not_reached(explanation) \
00121 _dbus_real_assert_not_reached (explanation, __FILE__, __LINE__)
00122 #endif
00123
00124 #ifdef DBUS_DISABLE_CHECKS
00125 #define _dbus_return_if_fail(condition)
00126 #define _dbus_return_val_if_fail(condition, val)
00127 #else
00128 extern const char _dbus_return_if_fail_warning_format[];
00129
00130 #define _dbus_return_if_fail(condition) do { \
00131 _dbus_assert ((*(const char*)_DBUS_FUNCTION_NAME) != '_'); \
00132 if (!(condition)) { \
00133 _dbus_warn (_dbus_return_if_fail_warning_format, \
00134 _dbus_getpid (), _DBUS_FUNCTION_NAME, #condition, __FILE__, __LINE__); \
00135 return; \
00136 } } while (0)
00137
00138 #define _dbus_return_val_if_fail(condition, val) do { \
00139 _dbus_assert ((*(const char*)_DBUS_FUNCTION_NAME) != '_'); \
00140 if (!(condition)) { \
00141 _dbus_warn (_dbus_return_if_fail_warning_format, \
00142 _dbus_getpid (), _DBUS_FUNCTION_NAME, #condition, __FILE__, __LINE__); \
00143 return (val); \
00144 } } while (0)
00145
00146 #endif
00147
00148 #define _DBUS_N_ELEMENTS(array) ((int) (sizeof ((array)) / sizeof ((array)[0])))
00149
00150 #define _DBUS_POINTER_TO_INT(pointer) ((long)(pointer))
00151 #define _DBUS_INT_TO_POINTER(integer) ((void*)((long)(integer)))
00152
00153 #define _DBUS_ZERO(object) (memset (&(object), '\0', sizeof ((object))))
00154
00155 #define _DBUS_STRUCT_OFFSET(struct_type, member) \
00156 ((long) ((unsigned char*) &((struct_type*) 0)->member))
00157
00158 #define _DBUS_ASSERT_ERROR_IS_SET(error) _dbus_assert ((error) == NULL || dbus_error_is_set ((error)))
00159 #define _DBUS_ASSERT_ERROR_IS_CLEAR(error) _dbus_assert ((error) == NULL || !dbus_error_is_set ((error)))
00160
00161 #define _dbus_return_if_error_is_set(error) _dbus_return_if_fail ((error) == NULL || !dbus_error_is_set ((error)))
00162 #define _dbus_return_val_if_error_is_set(error, val) _dbus_return_val_if_fail ((error) == NULL || !dbus_error_is_set ((error)), (val))
00163
00164
00165
00166
00167
00168
00169
00170
00171
00172
00173
00174
00175 #define _DBUS_ALIGN_VALUE(this, boundary) \
00176 (( ((unsigned long)(this)) + (((unsigned long)(boundary)) -1)) & (~(((unsigned long)(boundary))-1)))
00177
00178 #define _DBUS_ALIGN_ADDRESS(this, boundary) \
00179 ((void*)_DBUS_ALIGN_VALUE(this, boundary))
00180
00181
00182 char* _dbus_strdup (const char *str);
00183 void* _dbus_memdup (const void *mem,
00184 size_t n_bytes);
00185 dbus_bool_t _dbus_string_array_contains (const char **array,
00186 const char *str);
00187 char** _dbus_dup_string_array (const char **array);
00188
00189 #define _DBUS_INT16_MIN ((dbus_int16_t) 0x8000)
00190 #define _DBUS_INT16_MAX ((dbus_int16_t) 0x7fff)
00191 #define _DBUS_UINT16_MAX ((dbus_uint16_t)0xffff)
00192 #define _DBUS_INT32_MIN ((dbus_int32_t) 0x80000000)
00193 #define _DBUS_INT32_MAX ((dbus_int32_t) 0x7fffffff)
00194 #define _DBUS_UINT32_MAX ((dbus_uint32_t)0xffffffff)
00195
00196 #define _DBUS_INT_MIN _DBUS_INT32_MIN
00197 #define _DBUS_INT_MAX _DBUS_INT32_MAX
00198 #define _DBUS_UINT_MAX _DBUS_UINT32_MAX
00199 #ifdef DBUS_HAVE_INT64
00200 #define _DBUS_INT64_MAX DBUS_INT64_CONSTANT (0x7fffffffffffffff)
00201 #define _DBUS_UINT64_MAX DBUS_UINT64_CONSTANT (0xffffffffffffffff)
00202 #endif
00203 #define _DBUS_ONE_KILOBYTE 1024
00204 #define _DBUS_ONE_MEGABYTE 1024 * _DBUS_ONE_KILOBYTE
00205 #define _DBUS_ONE_HOUR_IN_MILLISECONDS (1000 * 60 * 60)
00206 #define _DBUS_USEC_PER_SECOND (1000000)
00207
00208 #undef MAX
00209 #define MAX(a, b) (((a) > (b)) ? (a) : (b))
00210
00211 #undef MIN
00212 #define MIN(a, b) (((a) < (b)) ? (a) : (b))
00213
00214 #undef ABS
00215 #define ABS(a) (((a) < 0) ? -(a) : (a))
00216
00217 #define _DBUS_ISASCII(c) ((c) != '\0' && (((c) & ~0x7f) == 0))
00218
00219 typedef void (* DBusForeachFunction) (void *element,
00220 void *data);
00221
00222 dbus_bool_t _dbus_set_fd_nonblocking (int fd,
00223 DBusError *error);
00224
00225 void _dbus_verbose_bytes (const unsigned char *data,
00226 int len,
00227 int offset);
00228 void _dbus_verbose_bytes_of_string (const DBusString *str,
00229 int start,
00230 int len);
00231
00232 const char* _dbus_header_field_to_string (int header_field);
00233
00234 extern const char _dbus_no_memory_message[];
00235 #define _DBUS_SET_OOM(error) dbus_set_error_const ((error), DBUS_ERROR_NO_MEMORY, _dbus_no_memory_message)
00236
00237 #ifdef DBUS_BUILD_TESTS
00238
00239 void _dbus_set_fail_alloc_counter (int until_next_fail);
00240 int _dbus_get_fail_alloc_counter (void);
00241 void _dbus_set_fail_alloc_failures (int failures_per_failure);
00242 int _dbus_get_fail_alloc_failures (void);
00243 dbus_bool_t _dbus_decrement_fail_alloc_counter (void);
00244 dbus_bool_t _dbus_disable_mem_pools (void);
00245 int _dbus_get_malloc_blocks_outstanding (void);
00246
00247 typedef dbus_bool_t (* DBusTestMemoryFunction) (void *data);
00248 dbus_bool_t _dbus_test_oom_handling (const char *description,
00249 DBusTestMemoryFunction func,
00250 void *data);
00251 #else
00252 #define _dbus_set_fail_alloc_counter(n)
00253 #define _dbus_get_fail_alloc_counter _DBUS_INT_MAX
00254
00255
00256
00257
00258 #define _dbus_decrement_fail_alloc_counter() (FALSE)
00259 #define _dbus_disable_mem_pools() (FALSE)
00260 #define _dbus_get_malloc_blocks_outstanding (0)
00261 #endif
00262
00263 typedef void (* DBusShutdownFunction) (void *data);
00264 dbus_bool_t _dbus_register_shutdown_func (DBusShutdownFunction function,
00265 void *data);
00266
00267 extern int _dbus_current_generation;
00268
00269
00270 #define _DBUS_LOCK_NAME(name) _dbus_lock_##name
00271 #define _DBUS_DECLARE_GLOBAL_LOCK(name) extern DBusMutex *_dbus_lock_##name
00272 #define _DBUS_DEFINE_GLOBAL_LOCK(name) DBusMutex *_dbus_lock_##name
00273 #define _DBUS_LOCK(name) _dbus_mutex_lock (_dbus_lock_##name)
00274 #define _DBUS_UNLOCK(name) _dbus_mutex_unlock (_dbus_lock_##name)
00275
00276 _DBUS_DECLARE_GLOBAL_LOCK (list);
00277 _DBUS_DECLARE_GLOBAL_LOCK (connection_slots);
00278 _DBUS_DECLARE_GLOBAL_LOCK (pending_call_slots);
00279 _DBUS_DECLARE_GLOBAL_LOCK (server_slots);
00280 _DBUS_DECLARE_GLOBAL_LOCK (message_slots);
00281 _DBUS_DECLARE_GLOBAL_LOCK (atomic);
00282 _DBUS_DECLARE_GLOBAL_LOCK (bus);
00283 _DBUS_DECLARE_GLOBAL_LOCK (shutdown_funcs);
00284 _DBUS_DECLARE_GLOBAL_LOCK (system_users);
00285 _DBUS_DECLARE_GLOBAL_LOCK (message_cache);
00286 _DBUS_DECLARE_GLOBAL_LOCK (shared_connections);
00287 _DBUS_DECLARE_GLOBAL_LOCK (win_fds);
00288 _DBUS_DECLARE_GLOBAL_LOCK (sid_atom_cache);
00289 #define _DBUS_N_GLOBAL_LOCKS (13)
00290
00291 dbus_bool_t _dbus_threads_init_debug (void);
00292
00293 dbus_bool_t _dbus_address_append_escaped (DBusString *escaped,
00294 const DBusString *unescaped);
00295
00296 DBUS_END_DECLS
00297
00298 #endif