diff options
Diffstat (limited to 'src/pkg/runtime/darwin/thread.c')
| -rw-r--r-- | src/pkg/runtime/darwin/thread.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/src/pkg/runtime/darwin/thread.c b/src/pkg/runtime/darwin/thread.c index 56c9d1702..38e3c23fb 100644 --- a/src/pkg/runtime/darwin/thread.c +++ b/src/pkg/runtime/darwin/thread.c @@ -48,10 +48,6 @@ initsema(uint32 *psema) // be >0, so it will increment the semaphore to wake up // one of the others. This is the same algorithm used // in Plan 9's user-level locks. -// -// Note that semaphores are never destroyed (the kernel -// will clean up when the process exits). We assume for now -// that Locks are only used for long-lived structures like M and G. void lock(Lock *l) @@ -83,6 +79,14 @@ unlock(Lock *l) } } +void +destroylock(Lock *l) +{ + if(l->sema != 0) { + mach_semdestroy(l->sema); + l->sema = 0; + } +} // User-level semaphore implementation: // try to do the operations in user space on u, |