util/qemu-thread-common.h

   1 /*
   2  * Common qemu-thread implementation header file.
   3  *
   4  * Copyright Red Hat, Inc. 2018
   5  *
   6  * Authors:
   7  *  Peter Xu <peterx@redhat.com>,
   8  *
   9  * This work is licensed under the terms of the GNU GPL, version 2 or later.
  10  * See the COPYING file in the top-level directory.
  11  */
  12
  13 #ifndef QEMU_THREAD_COMMON_H
  14 #define QEMU_THREAD_COMMON_H
  15
  16 #include "qemu/typedefs.h"
  17 #include "qemu/thread.h"
  18 #include "trace.h"
  19
  20 static inline void qemu_mutex_post_init(QemuMutex *mutex)
  21 {
  22 #ifdef CONFIG_DEBUG_MUTEX
  23     mutex->file = NULL;
  24     mutex->line = 0;
  25 #endif
  26     mutex->initialized = true;
  27 }
  28
  29 static inline void qemu_mutex_pre_lock(QemuMutex *mutex,
  30                                        const char *file, int line)
  31 {
  32     trace_qemu_mutex_lock(mutex, file, line);
  33 }
  34
  35 static inline void qemu_mutex_post_lock(QemuMutex *mutex,
  36                                         const char *file, int line)
  37 {
  38 #ifdef CONFIG_DEBUG_MUTEX
  39     mutex->file = file;
  40     mutex->line = line;
  41 #endif
  42     trace_qemu_mutex_locked(mutex, file, line);
  43 }
  44
  45 static inline void qemu_mutex_pre_unlock(QemuMutex *mutex,
  46                                          const char *file, int line)
  47 {
  48 #ifdef CONFIG_DEBUG_MUTEX
  49     mutex->file = NULL;
  50     mutex->line = 0;
  51 #endif
  52     trace_qemu_mutex_unlock(mutex, file, line);
  53 }
  54
  55 #endif