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-rw-r--r--src/common/compat_pthreads.c16
-rw-r--r--src/common/compat_threads.h1
-rw-r--r--src/common/compat_winthreads.c6
3 files changed, 23 insertions, 0 deletions
diff --git a/src/common/compat_pthreads.c b/src/common/compat_pthreads.c
index e58b3f7b57..59b54a600a 100644
--- a/src/common/compat_pthreads.c
+++ b/src/common/compat_pthreads.c
@@ -96,6 +96,22 @@ tor_mutex_init(tor_mutex_t *mutex)
tor_fragile_assert();
}
}
+
+/** As tor_mutex_init, but initialize a mutex suitable for use with a
+ * condition variable. */
+void
+tor_mutex_init_for_cond(tor_mutex_t *mutex)
+{
+ int err;
+ if (PREDICT_UNLIKELY(!threads_initialized))
+ tor_threads_init();
+ err = pthread_mutex_init(&mutex->mutex, NULL);
+ if (PREDICT_UNLIKELY(err)) {
+ log_err(LD_GENERAL, "Error %d creating a mutex.", err);
+ tor_fragile_assert();
+ }
+}
+
/** Wait until <b>m</b> is free, then acquire it. */
void
tor_mutex_acquire(tor_mutex_t *m)
diff --git a/src/common/compat_threads.h b/src/common/compat_threads.h
index 6d3ba3ae21..581d8dd7b9 100644
--- a/src/common/compat_threads.h
+++ b/src/common/compat_threads.h
@@ -47,6 +47,7 @@ typedef struct tor_mutex_t {
tor_mutex_t *tor_mutex_new(void);
void tor_mutex_init(tor_mutex_t *m);
+void tor_mutex_init_for_cond(tor_mutex_t *m);
void tor_mutex_acquire(tor_mutex_t *m);
void tor_mutex_release(tor_mutex_t *m);
void tor_mutex_free(tor_mutex_t *m);
diff --git a/src/common/compat_winthreads.c b/src/common/compat_winthreads.c
index 11f91c63df..2b1527ad34 100644
--- a/src/common/compat_winthreads.c
+++ b/src/common/compat_winthreads.c
@@ -49,6 +49,12 @@ tor_mutex_init(tor_mutex_t *m)
InitializeCriticalSection(&m->mutex);
}
void
+tor_mutex_init_for_cond(tor_mutex_t *m)
+{
+ InitializeCriticalSection(&m->mutex);
+}
+
+void
tor_mutex_uninit(tor_mutex_t *m)
{
DeleteCriticalSection(&m->mutex);