Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(691)

Unified Diff: fusl/src/thread/__lock.c

Issue 1573973002: Add a "fork" of musl as //fusl. (Closed) Base URL: https://github.com/domokit/mojo.git@master
Patch Set: Created 4 years, 11 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
« no previous file with comments | « fusl/src/thread/__futex.c ('k') | fusl/src/thread/__set_thread_area.c » ('j') | no next file with comments »
Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
Index: fusl/src/thread/__lock.c
diff --git a/fusl/src/thread/__lock.c b/fusl/src/thread/__lock.c
new file mode 100644
index 0000000000000000000000000000000000000000..0874c04a4c0a81a9fa0dc032479ec18cec81d8aa
--- /dev/null
+++ b/fusl/src/thread/__lock.c
@@ -0,0 +1,15 @@
+#include "pthread_impl.h"
+
+void __lock(volatile int *l)
+{
+ if (libc.threads_minus_1)
+ while (a_swap(l, 1)) __wait(l, l+1, 1, 1);
+}
+
+void __unlock(volatile int *l)
+{
+ if (l[0]) {
+ a_store(l, 0);
+ if (l[1]) __wake(l, 1, 1);
+ }
+}
« no previous file with comments | « fusl/src/thread/__futex.c ('k') | fusl/src/thread/__set_thread_area.c » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698