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rb_sigwait_sleep: change internal API to use rb_hrtime_t

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rb_hrtime_t is a more pleasant type to use and this can make
future changes around sleeping/scheduling easier.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65182 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
normal 2018-10-19 20:14:41 +00:00
parent 07ae480dc4
commit 98d0ccc86a
3 changed files with 17 additions and 17 deletions
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7
process.c
View file

@ -17,6 +17,7 @@
#include "ruby/thread.h"
#include "ruby/util.h"
#include "vm_core.h"
#include "hrtime.h"
#include <stdio.h>
#include <errno.h>
@ -931,7 +932,7 @@ void rb_native_mutex_unlock(rb_nativethread_lock_t *);
void rb_native_cond_signal(rb_nativethread_cond_t *);
void rb_native_cond_wait(rb_nativethread_cond_t *, rb_nativethread_lock_t *);
int rb_sigwait_fd_get(const rb_thread_t *);
void rb_sigwait_sleep(const rb_thread_t *, int fd, const struct timespec *);
void rb_sigwait_sleep(const rb_thread_t *, int fd, const rb_hrtime_t *);
void rb_sigwait_fd_put(const rb_thread_t *, int fd);
void rb_thread_sleep_interruptible(void);
@ -1026,11 +1027,11 @@ waitpid_state_init(struct waitpid_state *w, rb_pid_t pid, int options)
w->options = options;
}
static const struct timespec *
static const rb_hrtime_t *
sigwait_sleep_time(void)
{
if (SIGCHLD_LOSSY) {
static const struct timespec busy_wait = { 0, 100000000 };
static const rb_hrtime_t busy_wait = 100 * RB_HRTIME_PER_MSEC;
return &busy_wait;
}

23
thread_pthread.c
View file

@ -1945,24 +1945,25 @@ ruby_ppoll(struct pollfd *fds, nfds_t nfds,
#endif
void
rb_sigwait_sleep(rb_thread_t *th, int sigwait_fd, const struct timespec *ts)
rb_sigwait_sleep(rb_thread_t *th, int sigwait_fd, const rb_hrtime_t *rel)
{
struct pollfd pfd;
struct timespec ts;
pfd.fd = sigwait_fd;
pfd.events = POLLIN;
if (!BUSY_WAIT_SIGNALS && ubf_threads_empty()) {
(void)ppoll(&pfd, 1, ts, 0);
(void)ppoll(&pfd, 1, rb_hrtime2timespec(&ts, rel), 0);
check_signals_nogvl(th, sigwait_fd);
}
else {
rb_hrtime_t rel, end;
rb_hrtime_t to = RB_HRTIME_MAX, end;
int n = 0;
if (ts) {
rel = rb_timespec2hrtime(ts);
end = rb_hrtime_add(rb_hrtime_now(), rel);
if (rel) {
to = *rel;
end = rb_hrtime_add(rb_hrtime_now(), to);
}
/*
* tricky: this needs to return on spurious wakeup (no auto-retry).
@ -1970,16 +1971,15 @@ rb_sigwait_sleep(rb_thread_t *th, int sigwait_fd, const struct timespec *ts)
* wakeups, so we care about the result of consume_communication_pipe
*/
for (;;) {
const rb_hrtime_t *sto = sigwait_timeout(th, sigwait_fd, &rel, &n);
struct timespec tmp;
const rb_hrtime_t *sto = sigwait_timeout(th, sigwait_fd, &to, &n);
if (n) return;
n = ppoll(&pfd, 1, rb_hrtime2timespec(&tmp, sto), 0);
n = ppoll(&pfd, 1, rb_hrtime2timespec(&ts, sto), 0);
if (check_signals_nogvl(th, sigwait_fd))
return;
if (n || (th && RUBY_VM_INTERRUPTED(th->ec)))
return;
if (ts && hrtime_update_expire(&rel, end))
if (rel && hrtime_update_expire(&to, end))
return;
}
}
@ -2035,8 +2035,7 @@ native_sleep(rb_thread_t *th, rb_hrtime_t *rel)
GVL_UNLOCK_BEGIN(th);
if (!RUBY_VM_INTERRUPTED(th->ec)) {
struct timespec ts;
rb_sigwait_sleep(th, sigwait_fd, rb_hrtime2timespec(&ts, rel));
rb_sigwait_sleep(th, sigwait_fd, rel);
}
else {
check_signals_nogvl(th, sigwait_fd);

4
thread_win32.c
View file

@ -793,9 +793,9 @@ rb_sigwait_fd_put(rb_thread_t *th, int fd)
rb_bug("not implemented, should not be called");
}
NORETURN(void rb_sigwait_sleep(const rb_thread_t *, int, const struct timespec *));
NORETURN(void rb_sigwait_sleep(const rb_thread_t *, int, const rb_hrtime_t *));
void
rb_sigwait_sleep(const rb_thread_t *th, int fd, const struct timespec *ts)
rb_sigwait_sleep(const rb_thread_t *th, int fd, const rb_hrtime_t *rel)
{
rb_bug("not implemented, should not be called");
}