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authorAlex Bennée <alex.bennee@linaro.org>2018-02-27 12:52:42 +0300
committerPaolo Bonzini <pbonzini@redhat.com>2018-03-12 16:12:50 +0100
commita36544d34c8b7e483386d29f9716ca9f4caad9fb (patch)
treea1682c57aa3a90ab2ff16741891773a9af0318a5 /replay
parent180d30bebeff8e3687b50bd55d44e6a5a83bc4da (diff)
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replay: make locking visible outside replay code
The replay_mutex_lock/unlock/locked functions are now going to be used for ensuring lock-step behaviour between the two threads. Make them public API functions and also provide stubs for non-QEMU builds on common paths. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru> Message-Id: <20180227095242.1060.16601.stgit@pasha-VirtualBox> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'replay')
-rw-r--r--replay/replay-internal.c2
-rw-r--r--replay/replay-internal.h6
2 files changed, 4 insertions, 4 deletions
diff --git a/replay/replay-internal.c b/replay/replay-internal.c
index 0d7e1d6..7cdefea 100644
--- a/replay/replay-internal.c
+++ b/replay/replay-internal.c
@@ -181,7 +181,7 @@ void replay_mutex_destroy(void)
qemu_mutex_destroy(&lock);
}
-static bool replay_mutex_locked(void)
+bool replay_mutex_locked(void)
{
return replay_locked;
}
diff --git a/replay/replay-internal.h b/replay/replay-internal.h
index 8e4c701..41eee66 100644
--- a/replay/replay-internal.h
+++ b/replay/replay-internal.h
@@ -100,12 +100,12 @@ int64_t replay_get_qword(void);
void replay_get_array(uint8_t *buf, size_t *size);
void replay_get_array_alloc(uint8_t **buf, size_t *size);
-/* Mutex functions for protecting replay log file */
+/* Mutex functions for protecting replay log file and ensuring
+ * synchronisation between vCPU and main-loop threads. */
void replay_mutex_init(void);
void replay_mutex_destroy(void);
-void replay_mutex_lock(void);
-void replay_mutex_unlock(void);
+bool replay_mutex_locked(void);
/*! Checks error status of the file. */
void replay_check_error(void);