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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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9
src/lib/lwp/lwp.c
View file

@ -29,7 +29,7 @@
* lwp.c: lightweight process creation, destruction and manipulation
*
* Known contributors to this file:
* Markus Armbruster, 2004-2006
* Markus Armbruster, 2004-2007
*/
#include <config.h>
@ -145,7 +145,7 @@ lwpCreate(int priority, void (*entry)(void *), int stacksz,
newp->argv = argv;
newp->ud = ud;
newp->dead = 0;
newp->runtime = -1;
newp->runtime = (time_t)-1;
newp->fd = -1;
if (LWP_MAX_PRIO <= priority)
priority = LWP_MAX_PRIO - 1;
@ -166,7 +166,7 @@ lwpCreate(int priority, void (*entry)(void *), int stacksz,
return newp;
}
void
static void
lwpDestroy(struct lwpProc *proc)
{
if (proc->flags & LWP_STACKCHECK) {
@ -244,8 +244,7 @@ lwpTerminate(struct lwpProc *p)
{
lwpStatus(p, "terminating process");
p->dead = 1;
if (p->fd >= 0)
lwpWakeupFd(p);
lwpWakeup(p);
}
/*