Changeset 13fdf86 for libcfa

Timestamp:

Mar 2, 2022, 4:23:43 PM (3 years ago)

Author:

Thierry Delisle <tdelisle@…>

Branches:

ADT, ast-experimental, enum, master, pthread-emulation, qualifiedEnum

Children:

1860885

Parents:

a494d105

Message:

Moved preemption reason to kernel_private and added preempt IO.

Location:

libcfa/src/concurrency

Files:

• kernel/fwd.hfa (modified) (1 diff)
• kernel_private.hfa (modified) (1 diff)

libcfa/src/concurrency/kernel/fwd.hfa

@@ -347 +347 @@
                                         struct oneshot * want = expected == 0p ? 1p : 2p;
                                         if(__atomic_compare_exchange_n(&this.ptr, &expected, want, false, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)) {
-                                                if( expected == 0p ) { /* paranoid */ verify( this.ptr == 1p); return 0p; }
+                                                if( expected == 0p ) { return 0p; }
                                                 thread$ * ret = post( *expected, do_unpark );
                                                 __atomic_store_n( &this.ptr, 1p, __ATOMIC_SEQ_CST);

libcfa/src/concurrency/kernel_private.hfa

@@ -60 +60 @@
 extern bool __preemption_enabled();
 
+enum {
+        PREEMPT_NORMAL    = 0,
+        PREEMPT_TERMINATE = 1,
+        PREEMPT_IO = 2,
+};
+
 static inline void __disable_interrupts_checked() {
         /* paranoid */ verify( __preemption_enabled() );