diff options
Diffstat (limited to 'erts/emulator/sys/common')
| -rw-r--r-- | erts/emulator/sys/common/erl_poll.c | 36 |
1 files changed, 28 insertions, 8 deletions
diff --git a/erts/emulator/sys/common/erl_poll.c b/erts/emulator/sys/common/erl_poll.c index 21fa214364..36ee94111c 100644 --- a/erts/emulator/sys/common/erl_poll.c +++ b/erts/emulator/sys/common/erl_poll.c @@ -74,6 +74,7 @@ #include "erl_thr_progress.h" #include "erl_driver.h" #include "erl_alloc.h" +#include "erl_msacc.h" #if !defined(ERTS_POLL_USE_EPOLL) \ && !defined(ERTS_POLL_USE_DEVPOLL) \ @@ -2238,6 +2239,7 @@ static ERTS_INLINE int check_fd_events(ErtsPollSet ps, ErtsMonotonicTime timeout_time, int max_res) { int res; + ERTS_MSACC_PUSH_STATE_M(); if (erts_smp_atomic_read_nob(&ps->no_of_user_fds) == 0 && timeout_time == ERTS_POLL_NO_TIMEOUT) { /* Nothing to poll and zero timeout; done... */ @@ -2259,6 +2261,7 @@ check_fd_events(ErtsPollSet ps, ErtsMonotonicTime timeout_time, int max_res) #ifdef ERTS_SMP erts_thr_progress_prepare_wait(NULL); #endif + ERTS_MSACC_SET_STATE_CACHED_M(ERTS_MSACC_STATE_SLEEP); timerfd_set(ps, &its); res = epoll_wait(ps->kp_fd, ps->res_events, max_res, -1); res = timerfd_clear(ps, res, max_res); @@ -2268,10 +2271,12 @@ check_fd_events(ErtsPollSet ps, ErtsMonotonicTime timeout_time, int max_res) } #else /* !ERTS_POLL_USE_TIMERFD */ timeout = (int) get_timeout(ps, 1000, timeout_time); + if (timeout) { #ifdef ERTS_SMP - if (timeout) erts_thr_progress_prepare_wait(NULL); #endif + ERTS_MSACC_SET_STATE_CACHED_M(ERTS_MSACC_STATE_SLEEP); + } res = epoll_wait(ps->kp_fd, ps->res_events, max_res, timeout); #endif /* !ERTS_POLL_USE_TIMERFD */ #elif ERTS_POLL_USE_KQUEUE /* --- kqueue ------------------------------ */ @@ -2279,10 +2284,12 @@ check_fd_events(ErtsPollSet ps, ErtsMonotonicTime timeout_time, int max_res) if (max_res > ps->res_events_len) grow_res_events(ps, max_res); timeout = get_timeout_timespec(ps, &ts, timeout_time); + if (timeout) { #ifdef ERTS_SMP - if (timeout) erts_thr_progress_prepare_wait(NULL); #endif + ERTS_MSACC_SET_STATE_CACHED_M(ERTS_MSACC_STATE_SLEEP); + } res = kevent(ps->kp_fd, NULL, 0, ps->res_events, max_res, &ts); #endif /* ----------------------------------------- */ } @@ -2306,26 +2313,33 @@ check_fd_events(ErtsPollSet ps, ErtsMonotonicTime timeout_time, int max_res) if (poll_res.dp_nfds > ps->res_events_len) grow_res_events(ps, poll_res.dp_nfds); poll_res.dp_fds = ps->res_events; + if (timeout) { #ifdef ERTS_SMP - if (timeout) erts_thr_progress_prepare_wait(NULL); #endif + ERTS_MSACC_SET_STATE_CACHED_M(ERTS_MSACC_STATE_SLEEP); + } poll_res.dp_timeout = timeout; res = ioctl(ps->kp_fd, DP_POLL, &poll_res); #elif ERTS_POLL_USE_POLL && defined(HAVE_PPOLL) /* --- ppoll ---------------- */ struct timespec ts; timeout = get_timeout_timespec(ps, &ts, timeout_time); + if (timeout) { #ifdef ERTS_SMP - if (timeout) erts_thr_progress_prepare_wait(NULL); #endif + ERTS_MSACC_SET_STATE_CACHED_M(ERTS_MSACC_STATE_SLEEP); + } res = ppoll(ps->poll_fds, ps->no_poll_fds, &ts, NULL); #elif ERTS_POLL_USE_POLL /* --- poll --------------------------------- */ timeout = (int) get_timeout(ps, 1000, timeout_time); + + if (timeout) { #ifdef ERTS_SMP - if (timeout) erts_thr_progress_prepare_wait(NULL); #endif + ERTS_MSACC_SET_STATE_CACHED_M(ERTS_MSACC_STATE_SLEEP); + } res = poll(ps->poll_fds, ps->no_poll_fds, timeout); #elif ERTS_POLL_USE_SELECT /* --- select ------------------------------ */ SysTimeval to; @@ -2334,18 +2348,22 @@ check_fd_events(ErtsPollSet ps, ErtsMonotonicTime timeout_time, int max_res) ERTS_FD_COPY(&ps->input_fds, &ps->res_input_fds); ERTS_FD_COPY(&ps->output_fds, &ps->res_output_fds); + if (timeout) { #ifdef ERTS_SMP - if (timeout) erts_thr_progress_prepare_wait(NULL); #endif + ERTS_MSACC_SET_STATE_CACHED_M(ERTS_MSACC_STATE_SLEEP); + } res = ERTS_SELECT(ps->max_fd + 1, &ps->res_input_fds, &ps->res_output_fds, NULL, &to); #ifdef ERTS_SMP - if (timeout) + if (timeout) { erts_thr_progress_finalize_wait(NULL); + ERTS_MSACC_POP_STATE_M(); + } if (res < 0 && errno == EBADF && ERTS_POLLSET_HAVE_UPDATE_REQUESTS(ps)) { @@ -2380,10 +2398,12 @@ check_fd_events(ErtsPollSet ps, ErtsMonotonicTime timeout_time, int max_res) return res; #endif /* ----------------------------------------- */ } + if (timeout) { #ifdef ERTS_SMP - if (timeout) erts_thr_progress_finalize_wait(NULL); #endif + ERTS_MSACC_POP_STATE_M(); + } return res; } } |