Changeset dbe9b08 for src/libcfa/bits

Timestamp:

Jan 25, 2018, 5:02:09 PM (7 years ago)

Author:

Thierry Delisle <tdelisle@…>

Branches:

ADT, aaron-thesis, arm-eh, ast-experimental, cleanup-dtors, deferred_resn, demangler, enum, forall-pointer-decay, jacob/cs343-translation, jenkins-sandbox, master, new-ast, new-ast-unique-expr, new-env, no_list, persistent-indexer, pthread-emulation, qualifiedEnum, resolv-new, with_gc

Children:

91496f3

Parents:

6e0f4bd

Message:

Spinlocks are now non-preemptive, stack-traces should print correctly

Location:

src/libcfa/bits

Files:

• locks.h (modified) (5 diffs)
• signal.h (added)

src/libcfa/bits/locks.h

@@ -58 +58 @@
 
 #ifdef __cforall
+        extern "C" {
+                extern void disable_interrupts();
+                extern void enable_interrupts_noPoll();
+        }
+
         extern void yield( unsigned int );
         extern thread_local struct thread_desc *    volatile this_thread;
@@ -68 +73 @@
         static inline _Bool try_lock  ( __spinlock_t & this __cfaabi_dbg_ctx_param2 ) {
                 _Bool result = __lock_test_and_test_and_set( this.lock );
-                __cfaabi_dbg_debug_do(
-                        if( result ) {
+                if( result ) {
+                        disable_interrupts();
+                        __cfaabi_dbg_debug_do(
                                 this.prev_name = caller;
                                 this.prev_thrd = this_thread;
-                        }
-                )
+                        )
+                }
                 return result;
         }
@@ -99 +105 @@
                         #endif
                 }
+                disable_interrupts();
                 __cfaabi_dbg_debug_do(
                         this.prev_name = caller;
@@ -111 +118 @@
                         yield( i );
                 }
+                disable_interrupts();
                 __cfaabi_dbg_debug_do(
                         this.prev_name = caller;
@@ -119 +127 @@
         static inline void unlock( __spinlock_t & this ) {
                 __lock_release( this.lock );
+                enable_interrupts_noPoll();
         }
 #endif