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Make empth_wakeup() and empth_terminate() wake up empth_sleep(), and

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empth_sleep() return whether that happened:
[EMPTH_LWP] (lwpWakeupSleep): New, factored out of lwpSelect().
[EMPTH_LWP] (lwpSelect): Use it.
[EMPTH_LWP] (lwpWakeup): New.  Call lwpWakeupFd() if sleeping in
lwpSleepFd(), lwpWakeupSleep() if sleeping in lwpSleepUntil().
[EMPTH_LWP] (lwpTerminate, empth_wakeup): Use it rather than
lwpWakeupFd().
[EMPTH_LWP] (lwpWakeupFd): Internal linkage.
[EMPTH_LWP] (lwpSleepUntil): Reset member runtime, so that lwpWakeup()
can test it reliably.  Return how sleep woke up.
[EMPTH_LWP] (empth_sleep): Return value of lwpSleepUntil().
[EMPTH_POSIX] (EMPTH_INTR): New.
[EMPTH_POSIX] (empth_wakeup): Set state to it.
[EMPTH_POSIX] (empth_restorectx): Clear state.
[EMPTH_POSIX] (empth_sleep): Don't re-seleep when state is not clear,
i.e. thread was woken up prematurely.  Return how sleep woke up.
[EMPTH_W32] (empth_sleep): Implement by waiting on hThreadEvent with a
timeout rather than a straight Sleep().  Return how sleep woke up.
This commit is contained in:
Markus Armbruster 2007-02-08 11:26:43 +00:00
parent fe2de3d743
commit cea39829af
7 changed files with 80 additions and 45 deletions
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7
include/empthread.h
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@ -181,7 +181,7 @@ void empth_terminate(empth_t *thread);
void empth_select(int fd, int flags);
/*
* Awaken THREAD if it is sleeping in empth_select().
* Awaken THREAD if it is sleeping in empth_select() or empth_sleep().
* Note: This must not awaken threads sleeping in other functions.
* Does not yield the processor.
*/
@ -189,9 +189,10 @@ void empth_wakeup(empth_t *thread);
/*
* Put current thread to sleep until the time is UNTIL.
* May sleep somehwat longer, but never shorter.
* Return 0 if it slept until that time.
* Return -1 if woken up early, by empth_wakeup().
*/
void empth_sleep(time_t until);
int empth_sleep(time_t until);
/*
* Wait for signal, return the signal number.