From 6deabb439b7870759f16db0c9a3968e3755bf61a Mon Sep 17 00:00:00 2001 From: deischen Date: Mon, 28 Apr 2003 23:56:12 +0000 Subject: o Don't add a scope system thread's KSE to the list of available KSEs when it's thread exits; allow the GC handler to do that. o Make spinlock/spinlock critical regions. The following were submitted by davidxu o Alow thr_switch() to take a null mailbox argument. o Better protect cancellation checks. o Don't set KSE specific data when creating new KSEs; rely on the first upcall of the KSE to set it. o Add the ability to set the maximum concurrency level and do this automatically. We should have a way to enable/disable this with some sort of tunable because some applications may not want this to be the default. o Hold the scheduling lock across thread switch calls. o If scheduling of a thread fails, make sure to remove it from the list of active threads. o Better protect accesses to a joining threads when the target thread is exited and detached. o Remove some macro definitions that are now provided by . o Don't leave the library in threaded mode if creation of the initial KSE fails. o Wakeup idle KSEs when there are threads ready to run. o Maintain the number of threads active in the priority queue. --- lib/libkse/thread/thr_yield.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'lib/libkse/thread/thr_yield.c') diff --git a/lib/libkse/thread/thr_yield.c b/lib/libkse/thread/thr_yield.c index acaa3c5..dfe7278 100644 --- a/lib/libkse/thread/thr_yield.c +++ b/lib/libkse/thread/thr_yield.c @@ -46,8 +46,9 @@ _sched_yield(void) curthread->slice_usec = -1; /* Schedule the next thread: */ + THR_LOCK_SWITCH(curthread); _thr_sched_switch(curthread); - + THR_UNLOCK_SWITCH(curthread); /* Always return no error. */ return(0); } @@ -62,5 +63,7 @@ _pthread_yield(void) curthread->slice_usec = -1; /* Schedule the next thread: */ + THR_LOCK_SWITCH(curthread); _thr_sched_switch(curthread); + THR_UNLOCK_SWITCH(curthread); } -- cgit v1.1