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X-Received-From: 2a00:1450:400c:c09::243 Subject: [Qemu-devel] [PULL 50/51] util/qemu-thread-*: add qemu_lock, locked and unlock trace events X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?UTF-8?q?Alex=20Benn=C3=A9e?= Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZohoMail: RDKM_2 RSF_0 Z_629925259 SPT_0 From: Alex Benn=C3=A9e Signed-off-by: Alex Benn=C3=A9e Signed-off-by: Paolo Bonzini --- include/qemu/thread.h | 39 +++++++++++++++++++++++++++++++++++---- util/qemu-thread-posix.c | 21 ++++++++++++--------- util/qemu-thread-win32.c | 20 +++++++++++--------- util/trace-events | 7 ++++--- 4 files changed, 62 insertions(+), 25 deletions(-) diff --git a/include/qemu/thread.h b/include/qemu/thread.h index 9910f49..9af4e94 100644 --- a/include/qemu/thread.h +++ b/include/qemu/thread.h @@ -22,9 +22,31 @@ typedef struct QemuThread QemuThread; =20 void qemu_mutex_init(QemuMutex *mutex); void qemu_mutex_destroy(QemuMutex *mutex); -void qemu_mutex_lock(QemuMutex *mutex); -int qemu_mutex_trylock(QemuMutex *mutex); -void qemu_mutex_unlock(QemuMutex *mutex); +int qemu_mutex_trylock_impl(QemuMutex *mutex, const char *file, const int = line); +void qemu_mutex_lock_impl(QemuMutex *mutex, const char *file, const int li= ne); +void qemu_mutex_unlock_impl(QemuMutex *mutex, const char *file, const int = line); + +#define qemu_mutex_lock(mutex) \ + qemu_mutex_lock_impl(mutex, __FILE__, __LINE__) +#define qemu_mutex_trylock(mutex) \ + qemu_mutex_trylock_impl(mutex, __FILE__, __LINE__) +#define qemu_mutex_unlock(mutex) \ + qemu_mutex_unlock_impl(mutex, __FILE__, __LINE__) + +static inline void (qemu_mutex_lock)(QemuMutex *mutex) +{ + qemu_mutex_lock(mutex); +} + +static inline int (qemu_mutex_trylock)(QemuMutex *mutex) +{ + return qemu_mutex_trylock(mutex); +} + +static inline void (qemu_mutex_unlock)(QemuMutex *mutex) +{ + qemu_mutex_unlock(mutex); +} =20 /* Prototypes for other functions are in thread-posix.h/thread-win32.h. */ void qemu_rec_mutex_init(QemuRecMutex *mutex); @@ -39,7 +61,16 @@ void qemu_cond_destroy(QemuCond *cond); */ void qemu_cond_signal(QemuCond *cond); void qemu_cond_broadcast(QemuCond *cond); -void qemu_cond_wait(QemuCond *cond, QemuMutex *mutex); +void qemu_cond_wait_impl(QemuCond *cond, QemuMutex *mutex, + const char *file, const int line); + +#define qemu_cond_wait(cond, mutex) \ + qemu_cond_wait_impl(cond, mutex, __FILE__, __LINE__) + +static inline void (qemu_cond_wait)(QemuCond *cond, QemuMutex *mutex) +{ + qemu_cond_wait(cond, mutex); +} =20 void qemu_sem_init(QemuSemaphore *sem, int init); void qemu_sem_post(QemuSemaphore *sem); diff --git a/util/qemu-thread-posix.c b/util/qemu-thread-posix.c index 959a570..b789cf3 100644 --- a/util/qemu-thread-posix.c +++ b/util/qemu-thread-posix.c @@ -57,26 +57,28 @@ void qemu_mutex_destroy(QemuMutex *mutex) error_exit(err, __func__); } =20 -void qemu_mutex_lock(QemuMutex *mutex) +void qemu_mutex_lock_impl(QemuMutex *mutex, const char *file, const int li= ne) { int err; =20 assert(mutex->initialized); + trace_qemu_mutex_lock(mutex, file, line); + err =3D pthread_mutex_lock(&mutex->lock); if (err) error_exit(err, __func__); =20 - trace_qemu_mutex_locked(mutex); + trace_qemu_mutex_locked(mutex, file, line); } =20 -int qemu_mutex_trylock(QemuMutex *mutex) +int qemu_mutex_trylock_impl(QemuMutex *mutex, const char *file, const int = line) { int err; =20 assert(mutex->initialized); err =3D pthread_mutex_trylock(&mutex->lock); if (err =3D=3D 0) { - trace_qemu_mutex_locked(mutex); + trace_qemu_mutex_locked(mutex, file, line); return 0; } if (err !=3D EBUSY) { @@ -85,15 +87,16 @@ int qemu_mutex_trylock(QemuMutex *mutex) return -EBUSY; } =20 -void qemu_mutex_unlock(QemuMutex *mutex) +void qemu_mutex_unlock_impl(QemuMutex *mutex, const char *file, const int = line) { int err; =20 assert(mutex->initialized); - trace_qemu_mutex_unlocked(mutex); err =3D pthread_mutex_unlock(&mutex->lock); if (err) error_exit(err, __func__); + + trace_qemu_mutex_unlock(mutex, file, line); } =20 void qemu_rec_mutex_init(QemuRecMutex *mutex) @@ -152,14 +155,14 @@ void qemu_cond_broadcast(QemuCond *cond) error_exit(err, __func__); } =20 -void qemu_cond_wait(QemuCond *cond, QemuMutex *mutex) +void qemu_cond_wait_impl(QemuCond *cond, QemuMutex *mutex, const char *fil= e, const int line) { int err; =20 assert(cond->initialized); - trace_qemu_mutex_unlocked(mutex); + trace_qemu_mutex_unlock(mutex, file, line); err =3D pthread_cond_wait(&cond->cond, &mutex->lock); - trace_qemu_mutex_locked(mutex); + trace_qemu_mutex_locked(mutex, file, line); if (err) error_exit(err, __func__); } diff --git a/util/qemu-thread-win32.c b/util/qemu-thread-win32.c index 94f3491..ab60c0d 100644 --- a/util/qemu-thread-win32.c +++ b/util/qemu-thread-win32.c @@ -56,30 +56,32 @@ void qemu_mutex_destroy(QemuMutex *mutex) InitializeSRWLock(&mutex->lock); } =20 -void qemu_mutex_lock(QemuMutex *mutex) +void qemu_mutex_lock_impl(QemuMutex *mutex, const char *file, const int li= ne) { assert(mutex->initialized); + trace_qemu_mutex_lock(mutex, file, line); + AcquireSRWLockExclusive(&mutex->lock); - trace_qemu_mutex_locked(mutex); + trace_qemu_mutex_locked(mutex, file, line); } =20 -int qemu_mutex_trylock(QemuMutex *mutex) +int qemu_mutex_trylock_impl(QemuMutex *mutex, const char *file, const int = line) { int owned; =20 assert(mutex->initialized); owned =3D TryAcquireSRWLockExclusive(&mutex->lock); if (owned) { - trace_qemu_mutex_locked(mutex); + trace_qemu_mutex_locked(mutex, file, line); return 0; } return -EBUSY; } =20 -void qemu_mutex_unlock(QemuMutex *mutex) +void qemu_mutex_unlock_impl(QemuMutex *mutex, const char *file, const int = line) { assert(mutex->initialized); - trace_qemu_mutex_unlocked(mutex); + trace_qemu_mutex_unlock(mutex, file, line); ReleaseSRWLockExclusive(&mutex->lock); } =20 @@ -140,12 +142,12 @@ void qemu_cond_broadcast(QemuCond *cond) WakeAllConditionVariable(&cond->var); } =20 -void qemu_cond_wait(QemuCond *cond, QemuMutex *mutex) +void qemu_cond_wait_impl(QemuCond *cond, QemuMutex *mutex, const char *fil= e, const int line) { assert(cond->initialized); - trace_qemu_mutex_unlocked(mutex); + trace_qemu_mutex_unlock(mutex, file, line); SleepConditionVariableSRW(&cond->var, &mutex->lock, INFINITE, 0); - trace_qemu_mutex_locked(mutex); + trace_qemu_mutex_locked(mutex, file, line); } =20 void qemu_sem_init(QemuSemaphore *sem, int init) diff --git a/util/trace-events b/util/trace-events index 025499f..515e625 100644 --- a/util/trace-events +++ b/util/trace-events @@ -56,6 +56,7 @@ lockcnt_futex_wait(const void *lockcnt, int val) "lockcnt= %p waiting on %d" lockcnt_futex_wait_resume(const void *lockcnt, int new) "lockcnt %p after = wait: %d" lockcnt_futex_wake(const void *lockcnt) "lockcnt %p waking up one waiter" =20 -# util/qemu-thread-posix.c -qemu_mutex_locked(void *lock) "locked mutex %p" -qemu_mutex_unlocked(void *lock) "unlocked mutex %p" +# util/qemu-thread.c +qemu_mutex_lock(void *mutex, const char *file, const int line) "waiting on= mutex %p (%s:%d)" +qemu_mutex_locked(void *mutex, const char *file, const int line) "taken mu= tex %p (%s:%d)" +qemu_mutex_unlock(void *mutex, const char *file, const int line) "released= mutex %p (%s:%d)" --=20 1.8.3.1