diff options
Diffstat (limited to 'thread_pthread.c')
| -rw-r--r-- | thread_pthread.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/thread_pthread.c b/thread_pthread.c index b0b40ed5df..c1cfe531f0 100644 --- a/thread_pthread.c +++ b/thread_pthread.c @@ -1577,6 +1577,37 @@ rb_sigwait_fd_put(const rb_thread_t *th, int fd) if (old != th) assert(old == th); } +#ifndef HAVE_PPOLL +/* TODO: don't ignore sigmask */ +static int +ruby_ppoll(struct pollfd *fds, nfds_t nfds, + const struct timespec *ts, const sigset_t *sigmask) +{ + int timeout_ms; + + if (ts) { + int tmp, tmp2; + + if (ts->tv_sec > INT_MAX/1000) + timeout_ms = INT_MAX; + else { + tmp = (int)(ts->tv_sec * 1000); + /* round up 1ns to 1ms to avoid excessive wakeups for <1ms sleep */ + tmp2 = (int)((ts->tv_nsec + 999999L) / (1000L * 1000L)); + if (INT_MAX - tmp < tmp2) + timeout_ms = INT_MAX; + else + timeout_ms = (int)(tmp + tmp2); + } + } + else + timeout_ms = -1; + + return poll(fds, nfds, timeout_ms); +} +# define ppoll(fds,nfds,ts,sigmask) ruby_ppoll((fds),(nfds),(ts),(sigmask)) +#endif + void rb_sigwait_sleep(rb_thread_t *th, int sigwait_fd, const struct timespec *ts) { |