Changeset d54b303 in mainline for uspace/lib/c/generic/fibril.c

Timestamp:

2012-12-04T05:18:19Z (12 years ago)

Author:

Adam Hraska <adam.hraska+hos@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

32d2e60

Parents:

9a3b469

Message:

Initial version of nop futexes that are upgradable to proper futexes.

File:

• uspace/lib/c/generic/fibril.c (modified) (3 diffs)

uspace/lib/c/generic/fibril.c

@@ -51 +51 @@
 #include <futex.h>
 
+#ifdef FUTEX_UPGRADABLE
+#include <rcu.h>
+#endif
+
 /**
  * This futex serializes access to ready_list,
@@ -83 +87 @@
 {
         fibril_t *fibril = __tcb_get()->fibril_data;
+
+#ifdef FUTEX_UPGRADABLE
+        rcu_register_fibril();
+#endif
         
         /* Call the implementing function. */
@@ -245 +253 @@
         
         futex_up(&fibril_futex);
+        
+#ifdef FUTEX_UPGRADABLE
+        if (stype == FIBRIL_FROM_DEAD) {
+                rcu_deregister_fibril();
+        }
+#endif
+        
         context_restore(&dstf->ctx);
         /* not reached */