diff options
| author | Alex Bennée <alex.bennee@linaro.org> | 2018-02-27 12:52:37 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2018-03-12 16:12:50 +0100 |
| commit | 180d30bebeff8e3687b50bd55d44e6a5a83bc4da (patch) | |
| tree | 289db24d64dfd4d1becce5d05f5e8031d0ef1c5c /replay | |
| parent | 80be169c1fd178ed18d17012b7cdc09850ea8cd7 (diff) | |
replay/replay-internal.c: track holding of replay_lock
This is modelled after the iothread mutex lock. We keep a TLS flag to
indicate when that thread has acquired the lock and assert we don't
double-lock or release when we shouldn't have.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Message-Id: <20180227095237.1060.44661.stgit@pasha-VirtualBox>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'replay')
| -rw-r--r-- | replay/replay-internal.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/replay/replay-internal.c b/replay/replay-internal.c index fca8514012..0d7e1d6bc4 100644 --- a/replay/replay-internal.c +++ b/replay/replay-internal.c @@ -169,6 +169,8 @@ void replay_finish_event(void) replay_fetch_data_kind(); } +static __thread bool replay_locked; + void replay_mutex_init(void) { qemu_mutex_init(&lock); @@ -179,13 +181,22 @@ void replay_mutex_destroy(void) qemu_mutex_destroy(&lock); } +static bool replay_mutex_locked(void) +{ + return replay_locked; +} + void replay_mutex_lock(void) { + g_assert(!replay_mutex_locked()); qemu_mutex_lock(&lock); + replay_locked = true; } void replay_mutex_unlock(void) { + g_assert(replay_mutex_locked()); + replay_locked = false; qemu_mutex_unlock(&lock); } |