From 549f55b104d68bdc7351ff3bc511e9ccadd84a3a Mon Sep 17 00:00:00 2001 From: Luke Shumaker Date: Sat, 22 Oct 2016 18:04:45 -0400 Subject: ./tools/notsd-move --- src/libsystemd/sd_event_source_set_enabled.xml | 179 +++++++++++++++++++++++++ 1 file changed, 179 insertions(+) create mode 100644 src/libsystemd/sd_event_source_set_enabled.xml (limited to 'src/libsystemd/sd_event_source_set_enabled.xml') diff --git a/src/libsystemd/sd_event_source_set_enabled.xml b/src/libsystemd/sd_event_source_set_enabled.xml new file mode 100644 index 0000000000..6844f29a49 --- /dev/null +++ b/src/libsystemd/sd_event_source_set_enabled.xml @@ -0,0 +1,179 @@ + + + + + + + + + sd_event_source_set_enabled + systemd + + + + Developer + Lennart + Poettering + lennart@poettering.net + + + + + + sd_event_source_set_enabled + 3 + + + + sd_event_source_set_enabled + sd_event_source_get_enabled + SD_EVENT_ON + SD_EVENT_OFF + SD_EVENT_ONESHOT + + Enable or disable event sources + + + + + #include <systemd/sd-event.h> + + enum { + SD_EVENT_OFF = 0, + SD_EVENT_ON = 1, + SD_EVENT_ONESHOT = -1, +}; + + + int sd_event_source_set_enabled + sd_event_source *source + int enabled + + + + int sd_event_source_get_enabled + sd_event_source *source + int *enabled + + + + + + + Description + + sd_event_source_set_enabled() may be + used to enable or disable the event source object specified as + source. The enabled + parameter takes one of SD_EVENT_ON (to + enable), SD_EVENT_OFF (to disable) or + SD_EVENT_ONESHOT. If invoked with + SD_EVENT_ONESHOT the event source will be + enabled but automatically reset to + SD_EVENT_OFF after the event source was + dispatched once. + + Event sources that are disabled will not result in event + loop wakeups and will not be dispatched, until they are enabled + again. + + sd_event_source_get_enabled() may be + used to query whether the event source object + source is currently enabled or not. It + returns the enablement state in + enabled. + + Event source objects are enabled when they are first created + with calls such as + sd_event_add_io3, + sd_event_add_time3. However, + depending on the event source type they are enabled continuously + (SD_EVENT_ON) or only for a single invocation + of the event source handler + (SD_EVENT_ONESHOT). For details see the + respective manual pages. + + As event source objects stay active and may be dispatched as + long as there is at least one reference to them, in many cases it + is a good idea to combine a call to + sd_event_source_unref3 + with a prior call to + sd_event_source_set_enabled() with + SD_EVENT_OFF, to ensure the event source is + not dispatched again until all other remaining references are dropped. + + + + Return Value + + On success, sd_event_source_set_enabled() and + sd_event_source_get_enabled() return a + non-negative integer. On failure, they return a negative + errno-style error code. + + + + Errors + + Returned errors may indicate the following problems: + + + + -EINVAL + + source is not a valid + pointer to an sd_event_source + object. + + + + -ENOMEM + + Not enough memory. + + + + -ECHILD + + The event loop has been created in a different process. + + + + + + + + + + See Also + + + sd-event3, + sd_event_add_io3, + sd_event_add_time3, + sd_event_add_child3, + sd_event_add_signal3, + sd_event_add_defer3, + sd_event_source_unref3 + + + + -- cgit v1.2.3-54-g00ecf