X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fsystemd%2Fsd-event.h;h=f8cb895660516b839dd8bd39c6ab25a640429321;hp=b9114856714be5ca83a67eabad3d6a8fa07b5e3b;hb=HEAD;hpb=31927c16deb4b0fdc887220df54505fd6993822f diff --git a/src/systemd/sd-event.h b/src/systemd/sd-event.h index b91148567..f8cb89566 100644 --- a/src/systemd/sd-event.h +++ b/src/systemd/sd-event.h @@ -1,5 +1,3 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - #ifndef foosdeventhfoo #define foosdeventhfoo @@ -22,19 +20,19 @@ along with systemd; If not, see . ***/ -#include -#include -#include #include #include +#include +#include +#include #include "_sd-common.h" /* Why is this better than pure epoll? - - Supports event source priorisation - - Scales better with a large number of time events, since it doesn't require one timerfd each + - Supports event source prioritization + - Scales better with a large number of time events because it does not require one timerfd each - Automatically tries to coalesce timer events system-wide - Handles signals and child PIDs */ @@ -51,14 +49,17 @@ enum { }; enum { - SD_EVENT_PASSIVE, + SD_EVENT_INITIAL, + SD_EVENT_ARMED, + SD_EVENT_PENDING, SD_EVENT_RUNNING, SD_EVENT_EXITING, - SD_EVENT_FINISHED + SD_EVENT_FINISHED, + SD_EVENT_PREPARING }; enum { - /* And everything inbetween and outside is good too */ + /* And everything in-between and outside is good too */ SD_EVENT_PRIORITY_IMPORTANT = -100, SD_EVENT_PRIORITY_NORMAL = 0, SD_EVENT_PRIORITY_IDLE = 100 @@ -68,7 +69,11 @@ typedef int (*sd_event_handler_t)(sd_event_source *s, void *userdata); typedef int (*sd_event_io_handler_t)(sd_event_source *s, int fd, uint32_t revents, void *userdata); typedef int (*sd_event_time_handler_t)(sd_event_source *s, uint64_t usec, void *userdata); typedef int (*sd_event_signal_handler_t)(sd_event_source *s, const struct signalfd_siginfo *si, void *userdata); +#if defined _GNU_SOURCE || _POSIX_C_SOURCE >= 199309L typedef int (*sd_event_child_handler_t)(sd_event_source *s, const siginfo_t *si, void *userdata); +#else +typedef void* sd_event_child_handler_t; +#endif int sd_event_default(sd_event **e); @@ -76,37 +81,46 @@ int sd_event_new(sd_event **e); sd_event* sd_event_ref(sd_event *e); sd_event* sd_event_unref(sd_event *e); -int sd_event_add_io(sd_event *e, int fd, uint32_t events, sd_event_io_handler_t callback, void *userdata, sd_event_source **s); -int sd_event_add_monotonic(sd_event *e, uint64_t usec, uint64_t accuracy, sd_event_time_handler_t callback, void *userdata, sd_event_source **s); -int sd_event_add_realtime(sd_event *e, uint64_t usec, uint64_t accuracy, sd_event_time_handler_t callback, void *userdata, sd_event_source **s); -int sd_event_add_signal(sd_event *e, int sig, sd_event_signal_handler_t callback, void *userdata, sd_event_source **s); -int sd_event_add_child(sd_event *e, pid_t pid, int options, sd_event_child_handler_t callback, void *userdata, sd_event_source **s); -int sd_event_add_defer(sd_event *e, sd_event_handler_t callback, void *userdata, sd_event_source **s); -int sd_event_add_exit(sd_event *e, sd_event_handler_t callback, void *userdata, sd_event_source **s); - -int sd_event_run(sd_event *e, uint64_t timeout); +int sd_event_add_io(sd_event *e, sd_event_source **s, int fd, uint32_t events, sd_event_io_handler_t callback, void *userdata); +int sd_event_add_time(sd_event *e, sd_event_source **s, clockid_t clock, uint64_t usec, uint64_t accuracy, sd_event_time_handler_t callback, void *userdata); +int sd_event_add_signal(sd_event *e, sd_event_source **s, int sig, sd_event_signal_handler_t callback, void *userdata); +int sd_event_add_child(sd_event *e, sd_event_source **s, pid_t pid, int options, sd_event_child_handler_t callback, void *userdata); +int sd_event_add_defer(sd_event *e, sd_event_source **s, sd_event_handler_t callback, void *userdata); +int sd_event_add_post(sd_event *e, sd_event_source **s, sd_event_handler_t callback, void *userdata); +int sd_event_add_exit(sd_event *e, sd_event_source **s, sd_event_handler_t callback, void *userdata); + +int sd_event_prepare(sd_event *e); +int sd_event_wait(sd_event *e, uint64_t usec); +int sd_event_dispatch(sd_event *e); +int sd_event_run(sd_event *e, uint64_t usec); int sd_event_loop(sd_event *e); int sd_event_exit(sd_event *e, int code); +int sd_event_now(sd_event *e, clockid_t clock, uint64_t *usec); + +int sd_event_get_fd(sd_event *e); int sd_event_get_state(sd_event *e); int sd_event_get_tid(sd_event *e, pid_t *tid); int sd_event_get_exit_code(sd_event *e, int *code); -int sd_event_get_now_realtime(sd_event *e, uint64_t *usec); -int sd_event_get_now_monotonic(sd_event *e, uint64_t *usec); int sd_event_set_watchdog(sd_event *e, int b); int sd_event_get_watchdog(sd_event *e); +int sd_event_get_iteration(sd_event *e, uint64_t *ret); sd_event_source* sd_event_source_ref(sd_event_source *s); sd_event_source* sd_event_source_unref(sd_event_source *s); +sd_event *sd_event_source_get_event(sd_event_source *s); +void* sd_event_source_get_userdata(sd_event_source *s); +void* sd_event_source_set_userdata(sd_event_source *s, void *userdata); + +int sd_event_source_set_description(sd_event_source *s, const char *description); +int sd_event_source_get_description(sd_event_source *s, const char **description); int sd_event_source_set_prepare(sd_event_source *s, sd_event_handler_t callback); int sd_event_source_get_pending(sd_event_source *s); int sd_event_source_get_priority(sd_event_source *s, int64_t *priority); int sd_event_source_set_priority(sd_event_source *s, int64_t priority); int sd_event_source_get_enabled(sd_event_source *s, int *enabled); int sd_event_source_set_enabled(sd_event_source *s, int enabled); -void* sd_event_source_get_userdata(sd_event_source *s); -void* sd_event_source_set_userdata(sd_event_source *s, void *userdata); int sd_event_source_get_io_fd(sd_event_source *s); int sd_event_source_set_io_fd(sd_event_source *s, int fd); int sd_event_source_get_io_events(sd_event_source *s, uint32_t* events); @@ -114,11 +128,15 @@ int sd_event_source_set_io_events(sd_event_source *s, uint32_t events); int sd_event_source_get_io_revents(sd_event_source *s, uint32_t* revents); int sd_event_source_get_time(sd_event_source *s, uint64_t *usec); int sd_event_source_set_time(sd_event_source *s, uint64_t usec); -int sd_event_source_set_time_accuracy(sd_event_source *s, uint64_t usec); int sd_event_source_get_time_accuracy(sd_event_source *s, uint64_t *usec); +int sd_event_source_set_time_accuracy(sd_event_source *s, uint64_t usec); +int sd_event_source_get_time_clock(sd_event_source *s, clockid_t *clock); int sd_event_source_get_signal(sd_event_source *s); int sd_event_source_get_child_pid(sd_event_source *s, pid_t *pid); -sd_event *sd_event_source_get_event(sd_event_source *s); + +/* Define helpers so that __attribute__((cleanup(sd_event_unrefp))) and similar may be used. */ +_SD_DEFINE_POINTER_CLEANUP_FUNC(sd_event, sd_event_unref); +_SD_DEFINE_POINTER_CLEANUP_FUNC(sd_event_source, sd_event_source_unref); _SD_END_DECLARATIONS;