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pthread and synccall cleanup, new __synccall_wait op

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fix up clone signature to match the actual behavior. the new
__syncall_wait function allows a __synccall callback to wait for other
threads to continue without returning, so that it can resume action
after the caller finishes. this interface could be made significantly
more general/powerful with minimal effort, but i'll wait to do that
until it's actually useful for something.
This commit is contained in:
Rich Felker 2011-08-12 10:32:22 -04:00
commit 407d933052
4 changed files with 13 additions and 7 deletions
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6
src/thread/pthread_create.c
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@ -52,17 +52,13 @@ void __pthread_do_unregister(struct __ptcb *cb)
self->cancelbuf = self->cancelbuf->__next;
}
static int start(void *p)
static void start(pthread_t self)
{
struct pthread *self = p;
if (self->unblock_cancel)
__syscall(SYS_rt_sigprocmask, SIG_UNBLOCK, SIGPT_SET, 0, 8);
pthread_exit(self->start(self->start_arg));
return 0;
}
int __uniclone(void *, int (*)(), void *);
#define ROUND(x) (((x)+PAGE_SIZE-1)&-PAGE_SIZE)
/* pthread_key_create.c overrides this */