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slightly gratuitous reorg of scheduler code

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* rename select (very loaded word) nextgoroutine
	* separate out "enter scheduler" (sys·gosched)
	  from the scheduler itself (scheduler)

R=r
APPROVED=r
DELTA=36  (17 added, 15 deleted, 4 changed)
OCL=13772
CL=13774
This commit is contained in:
Russ Cox 2008-08-02 22:34:04 -07:00
parent 234dd3d7e3
commit 4feda71b7d
1 changed files with 22 additions and 20 deletions
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34
src/runtime/proc.c
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@ -90,7 +90,7 @@ tracebackothers(G *me)
}
G*
select(void)
nextgoroutine(void)
{
G *gp;
@ -113,34 +113,36 @@ select(void)
return nil;
}
void
scheduler(void)
{
G* gp;
gosave(&m->sched);
gp = nextgoroutine();
if(gp == nil) {
// prints("sched: no more work\n");
sys·exit(0);
}
m->curg = gp;
g = gp;
gogo(&gp->sched);
}
void
gom0init(void)
{
gosave(&m->sched);
sys·gosched();
scheduler();
}
void
sys·gosched(void)
{
G* gp;
if(g != m->g0) {
if(gosave(&g->sched))
return;
g = m->g0;
gogo(&m->sched);
}
gp = select();
if(gp == nil) {
// prints("sched: no more work\n");
sys·exit(0);
}
m->curg = gp;
g = gp;
gogo(&gp->sched);
}
//
// the calling sequence for a routine that