From 4f308829ad0e81a59971e172284c018cf2bdca3d Mon Sep 17 00:00:00 2001
From: dec05eba <dec05eba@protonmail.com>
Date: Fri, 22 Mar 2019 20:48:40 +0100
Subject: Add mutex for lhs expr, add error for missing lhs expr for func,
 struct

TODO: Use mutex in lhs expr and set resolved_type
---
 src/std/thread.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'src/std/thread.c')

diff --git a/src/std/thread.c b/src/std/thread.c
index ba67463..350631a 100644
--- a/src/std/thread.c
+++ b/src/std/thread.c
@@ -109,7 +109,9 @@ int amal_thread_join(amal_thread *self, void **result) {
 
 void amal_mutex_init(amal_mutex *self) {
     pthread_mutex_init(&self->mutex, NULL);
+    #ifdef AMAL_MUTEX_DEBUG
     self->lock_identifier = NULL;
+    #endif
     self->locked = bool_false;
     self->owner_thread = 0;
 }
@@ -129,10 +131,11 @@ static long amal_thread_get_id() {
 int amal_mutex_lock(amal_mutex *self, const char *lock_identifier) {
     int result;
     result = pthread_mutex_lock(&self->mutex);
-    self->lock_identifier = lock_identifier;
     self->owner_thread = pthread_self();
     self->locked = bool_true;
+    (void)lock_identifier;
     #ifdef AMAL_MUTEX_DEBUG
+    self->lock_identifier = lock_identifier;
     if(result == 0 && self->lock_identifier) {
         amal_log_debug("amal_mutex_lock: mutex locked by thread %lu (%s), identification: %s", 
             amal_thread_get_id(),
@@ -149,6 +152,7 @@ int amal_mutex_unlock(amal_mutex *self) {
     const char *identifier;
     identifier = self->lock_identifier;
     #endif
+    /* No-op if mutex isn't locked or if another thread owns the mutex lock */
     if(!self->locked || pthread_equal(self->owner_thread, pthread_self()) == 0)
         return 0;
     self->locked = bool_false;
-- 
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