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| author | julian <julian@FreeBSD.org> | 2002-06-29 17:26:22 +0000 |
|---|---|---|
| committer | julian <julian@FreeBSD.org> | 2002-06-29 17:26:22 +0000 |
| commit | aa2dc0a5d9e7a19420c153cd414fefa8498eab71 (patch) | |
| tree | 0a0483a267784fa8e2bf86857d8727edb5b122e9 /sys/kern/sys_process.c | |
| parent | 6dbff7f2c1f8150887038aed666e11675adf0b4e (diff) | |
| download | FreeBSD-src-aa2dc0a5d9e7a19420c153cd414fefa8498eab71.zip FreeBSD-src-aa2dc0a5d9e7a19420c153cd414fefa8498eab71.tar.gz | |
Part 1 of KSE-III
The ability to schedule multiple threads per process
(one one cpu) by making ALL system calls optionally asynchronous.
to come: ia64 and power-pc patches, patches for gdb, test program (in tools)
Reviewed by: Almost everyone who counts
(at various times, peter, jhb, matt, alfred, mini, bernd,
and a cast of thousands)
NOTE: this is still Beta code, and contains lots of debugging stuff.
expect slight instability in signals..
Diffstat (limited to 'sys/kern/sys_process.c')
| -rw-r--r-- | sys/kern/sys_process.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/sys/kern/sys_process.c b/sys/kern/sys_process.c index dacb9d9..ab6f1e8 100644 --- a/sys/kern/sys_process.c +++ b/sys/kern/sys_process.c @@ -467,7 +467,7 @@ ptrace(struct thread *td, struct ptrace_args *uap) } /* not currently stopped */ - if (p->p_stat != SSTOP || (p->p_flag & P_WAITED) == 0) { + if (!P_SHOULDSTOP(p) || (p->p_flag & P_WAITED) == 0) { error = EBUSY; goto fail; } @@ -566,10 +566,12 @@ ptrace(struct thread *td, struct ptrace_args *uap) if (proctree_locked) sx_xunlock(&proctree_lock); /* deliver or queue signal */ - if (p->p_stat == SSTOP) { + if (P_SHOULDSTOP(p)) { p->p_xstat = uap->data; mtx_lock_spin(&sched_lock); + p->p_flag &= ~(P_STOPPED_TRACE|P_STOPPED_SGNL); setrunnable(td2); /* XXXKSE */ + /* Need foreach kse in proc, ... make_kse_queued(). */ mtx_unlock_spin(&sched_lock); } else if (uap->data) psignal(p, uap->data); |
