Changeset 454f478 for libcfa/src/concurrency/locks.hfa

Timestamp:

Jan 20, 2021, 5:35:39 PM (4 years ago)

Author:

Thierry Delisle <tdelisle@…>

Branches:

ADT, arm-eh, ast-experimental, enum, forall-pointer-decay, jacob/cs343-translation, master, new-ast-unique-expr, pthread-emulation, qualifiedEnum

Children:

9db2c92

Parents:

dafbde8

Message:

Re-arranged and commented low-level headers.
Main goal was for better support of weakso locks that are comming.

File:

• libcfa/src/concurrency/locks.hfa (modified) (1 diff)

libcfa/src/concurrency/locks.hfa

@@ -157 +157 @@
         bool wait( condition_variable(L) & this, L & l, uintptr_t info, Time time );
 }
+
+//-----------------------------------------------------------------------------
+// Semaphore
+struct semaphore {
+        __spinlock_t lock;
+        int count;
+        __queue_t($thread) waiting;
+};
+
+void  ?{}(semaphore & this, int count = 1);
+void ^?{}(semaphore & this);
+bool   P (semaphore & this);
+bool   V (semaphore & this);
+bool   V (semaphore & this, unsigned count);