OS.h: add a note about B_ABSOLUTE_REAL_TIME_TIMEOUT.

* B_ABSOLUTE_REAL_TIME_TIMEOUT is used for kernel timers, and must be used for absolute timeout values, rather than the B_ABSOLUTE_TIMEOUT flag. Discovered whilst implementing `pthread_timedjoin_np`. Change-Id: I37ae057073ff5efeecc00406b132abf51bebbdc2 Reviewed-on: https://review.haiku-os.org/c/haiku/+/5100 Reviewed-by: Fredrik Holmqvist <[email protected]> Tested-by: Commit checker robot <[email protected]>
2024-07-13 14:41:34 +00:00
parent 48c3343960
commit bed49f85a4
1 changed files with 3 additions and 0 deletions
@@ -37,6 +37,9 @@ enum {
 	B_TIMEOUT_REAL_TIME_BASE		= 0x40,
 	B_ABSOLUTE_REAL_TIME_TIMEOUT	= B_ABSOLUTE_TIMEOUT
 										| B_TIMEOUT_REAL_TIME_BASE
+								/* fails after an absolute timeout
+												with B_TIMED_OUT based on the
+												real time clock */
 };