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* vm_trace.c (rb_postponed_job_flush): simplify.

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43250 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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ko1 2013-10-11 07:54:26 +00:00
parent 19ae2748c7
commit 76f9281b92
2 changed files with 21 additions and 38 deletions
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ChangeLog
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@ -1,3 +1,7 @@
Fri Oct 11 16:53:28 2013 Koichi Sasada <ko1@atdot.net>
* vm_trace.c (rb_postponed_job_flush): simplify.
Fri Oct 11 03:36:49 2013 Nobuyoshi Nakada <nobu@ruby-lang.org>
* thread.c (rb_threadptr_execute_interrupts): flush postponed job only

55
vm_trace.c
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@ -1444,46 +1444,25 @@ rb_postponed_job_register_one(unsigned int flags, rb_postponed_job_func_t func,
void
rb_postponed_job_flush(rb_vm_t *vm)
{
rb_thread_t *cur_th = GET_THREAD();
volatile struct {
rb_thread_t *thread;
unsigned long interrupt_mask;
int index, old_index;
} save;
int index = vm->postponed_job_index, old_index = index;
rb_thread_t *th = GET_THREAD();
unsigned long saved_postponed_job_interrupt_mask = th->interrupt_mask & POSTPONED_JOB_INTERRUPT_MASK;
save.thread = cur_th;
save.index = index;
save.interrupt_mask = cur_th->interrupt_mask;
cur_th->interrupt_mask |= POSTPONED_JOB_INTERRUPT_MASK;
TH_PUSH_TAG(cur_th);
EXEC_TAG();
/* ignore all jumps, just continue */
cur_th = save.thread;
index = save.index;
old_index = save.old_index;
while (index > 0) {
rb_postponed_job_t *pjob = &vm->postponed_job_buffer[--index];
void *data = pjob->data;
rb_postponed_job_func_t func = pjob->func;
pjob->func = 0; /* not to execute again */
if (old_index > 0) {
if (ATOMIC_CAS(vm->postponed_job_index, old_index, index) == old_index) {
old_index = index;
}
else {
old_index = 0;
/* mask POSTPONED_JOB dispatch */
th->interrupt_mask |= POSTPONED_JOB_INTERRUPT_MASK;
{
TH_PUSH_TAG(th);
EXEC_TAG();
{
int index;
while ((index = vm->postponed_job_index) > 0) {
if (ATOMIC_CAS(vm->postponed_job_index, index, index-1) == index) {
rb_postponed_job_t *pjob = &vm->postponed_job_buffer[index-1];
(*pjob->func)(pjob->data);
}
}
}
save.index = index;
save.old_index = old_index;
if (func) {
/* do postponed job */
(*func)(data);
}
TH_POP_TAG();
}
TH_POP_TAG();
cur_th->interrupt_mask = save.interrupt_mask;
/* restore POSTPONED_JOB mask */
th->interrupt_mask &= ~saved_postponed_job_interrupt_mask;
}