synchronize with semaphore

2022-07-11 15:37:45 +02:00
parent 66b3b914d0
commit 597b823ac3
3 changed files with 15 additions and 7 deletions
--- a/c_os/user/PreemptiveLoopThread.cc
+++ b/c_os/user/PreemptiveLoopThread.cc
@ -6,12 +6,12 @@ void PreemptiveLoopThread::run() {

    int cnt = 0;
    while (true) {
-        // Basic synchronization by disabling PIT interrupts
-        cpu.disable_int();
+        // Basic synchronization by semaphore
+        sem->p();

        kout.setpos(55, this->id);
        kout << this->id << ": " << dec << cnt++ << endl;

-        cpu.enable_int();
+        sem->v();
    }
 }