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various tweaks.

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This commit is contained in:
rsc 2003-12-06 18:05:27 +00:00
parent c715a6127a
commit e97ceade5e
10 changed files with 74 additions and 8 deletions
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24
src/libthread/create.c
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@ -2,6 +2,8 @@
Pqueue _threadpq;
int _threadmultiproc;
static int nextID(void);
/*
@ -81,6 +83,14 @@ procrfork(void (*f)(void *), void *arg, uint stacksize, int rforkflag)
int
proccreate(void (*f)(void*), void *arg, uint stacksize)
{
Proc *p;
p = _threadgetproc();
if(p->idle){
werrstr("cannot create procs once there is an idle thread");
return -1;
}
_threadmultiproc = 1;
return procrfork(f, arg, stacksize, 0);
}
@ -110,6 +120,20 @@ threadcreate(void (*f)(void *arg), void *arg, uint stacksize)
return newthread(_threadgetproc(), f, arg, stacksize, nil, threadgetgrp());
}
int
threadcreateidle(void (*f)(void *arg), void *arg, uint stacksize)
{
int id;
if(_threadmultiproc){
werrstr("cannot have idle thread in multi-proc program");
return -1;
}
id = newthread(_threadgetproc(), f, arg, stacksize, nil, threadgetgrp());
_threadidle();
return id;
}
/*
* Create and initialize a new Proc structure with a single Thread
* running inside it. Add the Proc to the global process list.