/usr/include/glib-2.0/glib/gthread.h is in libglib2.0-dev 2.56.1-2ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 | /* GLIB - Library of useful routines for C programming
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* 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 2.1 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
* 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, see <http://www.gnu.org/licenses/>.
*/
/*
* Modified by the GLib Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GLib Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GLib at ftp://ftp.gtk.org/pub/gtk/.
*/
#ifndef __G_THREAD_H__
#define __G_THREAD_H__
#if !defined (__GLIB_H_INSIDE__) && !defined (GLIB_COMPILATION)
#error "Only <glib.h> can be included directly."
#endif
#include <glib/gatomic.h>
#include <glib/gerror.h>
#include <glib/gutils.h>
G_BEGIN_DECLS
#define G_THREAD_ERROR g_thread_error_quark ()
GLIB_AVAILABLE_IN_ALL
GQuark g_thread_error_quark (void);
typedef enum
{
G_THREAD_ERROR_AGAIN /* Resource temporarily unavailable */
} GThreadError;
typedef gpointer (*GThreadFunc) (gpointer data);
typedef struct _GThread GThread;
typedef union _GMutex GMutex;
typedef struct _GRecMutex GRecMutex;
typedef struct _GRWLock GRWLock;
typedef struct _GCond GCond;
typedef struct _GPrivate GPrivate;
typedef struct _GOnce GOnce;
union _GMutex
{
/*< private >*/
gpointer p;
guint i[2];
};
struct _GRWLock
{
/*< private >*/
gpointer p;
guint i[2];
};
struct _GCond
{
/*< private >*/
gpointer p;
guint i[2];
};
struct _GRecMutex
{
/*< private >*/
gpointer p;
guint i[2];
};
#define G_PRIVATE_INIT(notify) { NULL, (notify), { NULL, NULL } }
struct _GPrivate
{
/*< private >*/
gpointer p;
GDestroyNotify notify;
gpointer future[2];
};
typedef enum
{
G_ONCE_STATUS_NOTCALLED,
G_ONCE_STATUS_PROGRESS,
G_ONCE_STATUS_READY
} GOnceStatus;
#define G_ONCE_INIT { G_ONCE_STATUS_NOTCALLED, NULL }
struct _GOnce
{
volatile GOnceStatus status;
volatile gpointer retval;
};
#define G_LOCK_NAME(name) g__ ## name ## _lock
#define G_LOCK_DEFINE_STATIC(name) static G_LOCK_DEFINE (name)
#define G_LOCK_DEFINE(name) GMutex G_LOCK_NAME (name)
#define G_LOCK_EXTERN(name) extern GMutex G_LOCK_NAME (name)
#ifdef G_DEBUG_LOCKS
# define G_LOCK(name) G_STMT_START{ \
g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, \
"file %s: line %d (%s): locking: %s ", \
__FILE__, __LINE__, G_STRFUNC, \
#name); \
g_mutex_lock (&G_LOCK_NAME (name)); \
}G_STMT_END
# define G_UNLOCK(name) G_STMT_START{ \
g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, \
"file %s: line %d (%s): unlocking: %s ", \
__FILE__, __LINE__, G_STRFUNC, \
#name); \
g_mutex_unlock (&G_LOCK_NAME (name)); \
}G_STMT_END
# define G_TRYLOCK(name) \
(g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, \
"file %s: line %d (%s): try locking: %s ", \
__FILE__, __LINE__, G_STRFUNC, \
#name), g_mutex_trylock (&G_LOCK_NAME (name)))
#else /* !G_DEBUG_LOCKS */
# define G_LOCK(name) g_mutex_lock (&G_LOCK_NAME (name))
# define G_UNLOCK(name) g_mutex_unlock (&G_LOCK_NAME (name))
# define G_TRYLOCK(name) g_mutex_trylock (&G_LOCK_NAME (name))
#endif /* !G_DEBUG_LOCKS */
GLIB_AVAILABLE_IN_2_32
GThread * g_thread_ref (GThread *thread);
GLIB_AVAILABLE_IN_2_32
void g_thread_unref (GThread *thread);
GLIB_AVAILABLE_IN_2_32
GThread * g_thread_new (const gchar *name,
GThreadFunc func,
gpointer data);
GLIB_AVAILABLE_IN_2_32
GThread * g_thread_try_new (const gchar *name,
GThreadFunc func,
gpointer data,
GError **error);
GLIB_AVAILABLE_IN_ALL
GThread * g_thread_self (void);
GLIB_AVAILABLE_IN_ALL
void g_thread_exit (gpointer retval);
GLIB_AVAILABLE_IN_ALL
gpointer g_thread_join (GThread *thread);
GLIB_AVAILABLE_IN_ALL
void g_thread_yield (void);
GLIB_AVAILABLE_IN_2_32
void g_mutex_init (GMutex *mutex);
GLIB_AVAILABLE_IN_2_32
void g_mutex_clear (GMutex *mutex);
GLIB_AVAILABLE_IN_ALL
void g_mutex_lock (GMutex *mutex);
GLIB_AVAILABLE_IN_ALL
gboolean g_mutex_trylock (GMutex *mutex);
GLIB_AVAILABLE_IN_ALL
void g_mutex_unlock (GMutex *mutex);
GLIB_AVAILABLE_IN_2_32
void g_rw_lock_init (GRWLock *rw_lock);
GLIB_AVAILABLE_IN_2_32
void g_rw_lock_clear (GRWLock *rw_lock);
GLIB_AVAILABLE_IN_2_32
void g_rw_lock_writer_lock (GRWLock *rw_lock);
GLIB_AVAILABLE_IN_2_32
gboolean g_rw_lock_writer_trylock (GRWLock *rw_lock);
GLIB_AVAILABLE_IN_2_32
void g_rw_lock_writer_unlock (GRWLock *rw_lock);
GLIB_AVAILABLE_IN_2_32
void g_rw_lock_reader_lock (GRWLock *rw_lock);
GLIB_AVAILABLE_IN_2_32
gboolean g_rw_lock_reader_trylock (GRWLock *rw_lock);
GLIB_AVAILABLE_IN_2_32
void g_rw_lock_reader_unlock (GRWLock *rw_lock);
GLIB_AVAILABLE_IN_2_32
void g_rec_mutex_init (GRecMutex *rec_mutex);
GLIB_AVAILABLE_IN_2_32
void g_rec_mutex_clear (GRecMutex *rec_mutex);
GLIB_AVAILABLE_IN_2_32
void g_rec_mutex_lock (GRecMutex *rec_mutex);
GLIB_AVAILABLE_IN_2_32
gboolean g_rec_mutex_trylock (GRecMutex *rec_mutex);
GLIB_AVAILABLE_IN_2_32
void g_rec_mutex_unlock (GRecMutex *rec_mutex);
GLIB_AVAILABLE_IN_2_32
void g_cond_init (GCond *cond);
GLIB_AVAILABLE_IN_2_32
void g_cond_clear (GCond *cond);
GLIB_AVAILABLE_IN_ALL
void g_cond_wait (GCond *cond,
GMutex *mutex);
GLIB_AVAILABLE_IN_ALL
void g_cond_signal (GCond *cond);
GLIB_AVAILABLE_IN_ALL
void g_cond_broadcast (GCond *cond);
GLIB_AVAILABLE_IN_2_32
gboolean g_cond_wait_until (GCond *cond,
GMutex *mutex,
gint64 end_time);
GLIB_AVAILABLE_IN_ALL
gpointer g_private_get (GPrivate *key);
GLIB_AVAILABLE_IN_ALL
void g_private_set (GPrivate *key,
gpointer value);
GLIB_AVAILABLE_IN_2_32
void g_private_replace (GPrivate *key,
gpointer value);
GLIB_AVAILABLE_IN_ALL
gpointer g_once_impl (GOnce *once,
GThreadFunc func,
gpointer arg);
GLIB_AVAILABLE_IN_ALL
gboolean g_once_init_enter (volatile void *location);
GLIB_AVAILABLE_IN_ALL
void g_once_init_leave (volatile void *location,
gsize result);
#ifdef G_ATOMIC_OP_MEMORY_BARRIER_NEEDED
# define g_once(once, func, arg) g_once_impl ((once), (func), (arg))
#else /* !G_ATOMIC_OP_MEMORY_BARRIER_NEEDED*/
# define g_once(once, func, arg) \
(((once)->status == G_ONCE_STATUS_READY) ? \
(once)->retval : \
g_once_impl ((once), (func), (arg)))
#endif /* G_ATOMIC_OP_MEMORY_BARRIER_NEEDED */
#ifdef __GNUC__
# define g_once_init_enter(location) \
(G_GNUC_EXTENSION ({ \
G_STATIC_ASSERT (sizeof *(location) == sizeof (gpointer)); \
(void) (0 ? (gpointer) *(location) : 0); \
(!g_atomic_pointer_get (location) && \
g_once_init_enter (location)); \
}))
# define g_once_init_leave(location, result) \
(G_GNUC_EXTENSION ({ \
G_STATIC_ASSERT (sizeof *(location) == sizeof (gpointer)); \
(void) (0 ? *(location) = (result) : 0); \
g_once_init_leave ((location), (gsize) (result)); \
}))
#else
# define g_once_init_enter(location) \
(g_once_init_enter((location)))
# define g_once_init_leave(location, result) \
(g_once_init_leave((location), (gsize) (result)))
#endif
GLIB_AVAILABLE_IN_2_36
guint g_get_num_processors (void);
/**
* GMutexLocker:
*
* Opaque type. See g_mutex_locker_new() for details.
* Since: 2.44
*/
typedef void GMutexLocker;
/**
* g_mutex_locker_new:
* @mutex: a mutex to lock
*
* Lock @mutex and return a new #GMutexLocker. Unlock with
* g_mutex_locker_free(). Using g_mutex_unlock() on @mutex
* while a #GMutexLocker exists can lead to undefined behaviour.
*
* This is intended to be used with g_autoptr(). Note that g_autoptr()
* is only available when using GCC or clang, so the following example
* will only work with those compilers:
* |[
* typedef struct
* {
* ...
* GMutex mutex;
* ...
* } MyObject;
*
* static void
* my_object_do_stuff (MyObject *self)
* {
* g_autoptr(GMutexLocker) locker = g_mutex_locker_new (&self->mutex);
*
* // Code with mutex locked here
*
* if (cond)
* // No need to unlock
* return;
*
* // Optionally early unlock
* g_clear_pointer (&locker, g_mutex_locker_free);
*
* // Code with mutex unlocked here
* }
* ]|
*
* Returns: a #GMutexLocker
* Since: 2.44
*/
static inline GMutexLocker *
g_mutex_locker_new (GMutex *mutex)
{
g_mutex_lock (mutex);
return (GMutexLocker *) mutex;
}
/**
* g_mutex_locker_free:
* @locker: a GMutexLocker
*
* Unlock @locker's mutex. See g_mutex_locker_new() for details.
*
* Since: 2.44
*/
static inline void
g_mutex_locker_free (GMutexLocker *locker)
{
g_mutex_unlock ((GMutex *) locker);
}
G_END_DECLS
#endif /* __G_THREAD_H__ */
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