Changeset 116d1ef4 in mainline for generic/src/synch/condvar.c

Timestamp:

2006-06-02T12:26:50Z (18 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

d0c5901

Parents:

01ebbdf

Message:

Replace nonblocking argument of waitq_sleep_timeout with flags that specify mode of operation.
Now a flag can be used to specify interruptible sleep.
Modify waitq_interrupt_sleep() to only interrupt threads that used this flag.
O

File:

• generic/src/synch/condvar.c (modified) (2 diffs)

generic/src/synch/condvar.c

@@ -75 +75 @@
  * @param mtx Mutex.
  * @param usec Timeout value in microseconds.
+ * @param flags Select mode of operation.
  *
- * For exact description of meaning of possible values of usec,
- * see comment for waitq_sleep_timeout().
+ * For exact description of meaning of possible combinations
+ * of usec and flags, see comment for waitq_sleep_timeout().
+ * Note that when SYNCH_FLAGS_NON_BLOCKING is specified here,
+ * ESYNCH_WOULD_BLOCK is always returned.
  *
  * @return See comment for waitq_sleep_timeout().
  */
-int _condvar_wait_timeout(condvar_t *cv, mutex_t *mtx, __u32 usec)
+int _condvar_wait_timeout(condvar_t *cv, mutex_t *mtx, __u32 usec, int flags)
 {
         int rc;
@@ -90 +93 @@
 
         cv->wq.missed_wakeups = 0;      /* Enforce blocking. */
-        rc = waitq_sleep_timeout_unsafe(&cv->wq, usec, SYNCH_BLOCKING);
+        rc = waitq_sleep_timeout_unsafe(&cv->wq, usec, flags);
 
         mutex_lock(mtx);