X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=sched.h;h=234a8458d5870a1f14c66c81c140b61c0c20bf01;hp=7a5a4f867b41fd1e661da8cf4b11032d8506fddc;hb=4ec04c614fc2e835a2d106ee61482ba0c729f5e6;hpb=f652ce6afe7f6fd0e42814505234cbf4321a736e

diff --git a/sched.h b/sched.h
index 7a5a4f86..234a8458 100644
--- a/sched.h
+++ b/sched.h
@@ -41,10 +41,7 @@ struct sched {
  * Before registering a task to the scheduler, the task structure must be
  * filled in properly by the caller.
  *
- * If one of these functions sets \a t->error to a negative value, the
- * task gets unregistered automatically.
- *
- * \sa struct sched.
+ * \sa \ref sched.
  */
 struct task {
 	/**
@@ -55,11 +52,13 @@ struct task {
 	 */
 	void (*pre_select)(struct sched *s, struct task *t);
 	/**
-	 * The postselect hook of \a t.
+	 * The post select hook of \a t.
 	 *
-	 * Evaluate and act upon the results of the previous select call.
+	 * Its purpose is to evaluate and act upon the results of the previous
+	 * select call. If this function returns a negative value, the
+	 * scheduler unregisters the task.
 	 */
-	void (*post_select)(struct sched *s, struct task *t);
+	int (*post_select)(struct sched *s, struct task *t);
 	/** Whether this task is in error state. */
 	int error;
 	/** Position of the task in the pre_select list of the scheduler. */
@@ -76,7 +75,7 @@ struct task {
  * This is set by the scheduler at the beginning of its main loop.  It may be
  * used (read-only) from everywhere. As none of the functions called by the
  * scheduler are allowed to block, this value should be accurate enough so that
- * there is no need to call gettimeofday() directly.
+ * there is no need to call clock_gettime() directly.
  */
 extern struct timeval *now;