| 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/thread.h" |
| 17 | #include "qemu/main-loop.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 | if (mutex_is_bql(mutex)) { |
| 44 | bql_update_status(true); |
| 45 | } |
| 46 | } |
| 47 | |
| 48 | static inline void qemu_mutex_pre_unlock(QemuMutex *mutex, |
| 49 | const char *file, int line) |
| 50 | { |
| 51 | #ifdef CONFIG_DEBUG_MUTEX |
| 52 | mutex->file = NULL; |
| 53 | mutex->line = 0; |
| 54 | #endif |
| 55 | trace_qemu_mutex_unlock(mutex, file, line); |
| 56 | if (mutex_is_bql(mutex)) { |
| 57 | bql_update_status(false); |
| 58 | } |
| 59 | } |
| 60 | |
| 61 | #endif |