Changeset ae7adbc4 for libcfa/src/concurrency

Timestamp:

Jan 18, 2022, 1:06:09 PM (2 years ago)

Author:

Thierry Delisle <tdelisle@…>

Branches:

ADT, ast-experimental, enum, forall-pointer-decay, master, pthread-emulation, qualifiedEnum

Children:

21a5bfb7

Parents:

7d0ebd0

Message:

Attempt optim for wake_one

File:

• libcfa/src/concurrency/kernel.cfa (modified) (1 diff)

libcfa/src/concurrency/kernel.cfa

@@ -737 +737 @@
 
         // Check if there is a sleeping processor
-        int fd = __atomic_load_n(&this->procs.fd, __ATOMIC_SEQ_CST);
+        // int fd = __atomic_load_n(&this->procs.fd, __ATOMIC_SEQ_CST);
+        int fd = 0;
+        if( __atomic_load_n(&this->procs.fd, __ATOMIC_SEQ_CST) != 0 ) {
+                fd = __atomic_exchange_n(&this->procs.fd, 0, __ATOMIC_RELAXED);
+        }
 
         // If no one is sleeping, we are done