From: Brendan Hansen <brendan.f.hansen@gmail.com>
Date: Wed, 20 Oct 2021 18:19:03 +0000 (-0500)
Subject: threading primitive bug fixes
X-Git-Url: https://git.brendanfh.com/?a=commitdiff_plain;h=9d626daaaaf49240fb02b76d29beb0fc9cdfdd59;p=onyx.git

threading primitive bug fixes
---

diff --git a/core/sync/condition_variable.onyx b/core/sync/condition_variable.onyx
index b670c085..8aa89274 100644
--- a/core/sync/condition_variable.onyx
+++ b/core/sync/condition_variable.onyx
@@ -32,9 +32,9 @@ condition_wait :: (c: ^Condition_Variable, m: ^Mutex) {
     semaphore_init(^node.semaphore, 0);
     mutex_unlock(^c.mutex);
 
-    mutex_unlock(m);
+    if m != null do mutex_unlock(m);
     semaphore_wait(^node.semaphore);
-    mutex_lock(m);
+    if m != null do mutex_lock(m);
 }
 
 condition_signal :: (c: ^Condition_Variable) {
diff --git a/core/sync/semaphore.onyx b/core/sync/semaphore.onyx
index 2a31af6d..26f061e1 100644
--- a/core/sync/semaphore.onyx
+++ b/core/sync/semaphore.onyx
@@ -18,9 +18,11 @@ semaphore_destroy :: (s: ^Semaphore) {
 }
 
 semaphore_post :: (s: ^Semaphore, count := 1) {
+    if count == 0 do return;
+    
     scoped_mutex(^s.mutex);
     s.counter += count;
-    __atomic_notify(^s.counter, maximum = 1);
+    __atomic_notify(^s.counter, maximum = count);
 }
 
 semaphore_wait :: (s: ^Semaphore) {