100 lines
3.8 KiB
C
100 lines
3.8 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#include <errno.h>
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#include "event-source.h"
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#include "event-util.h"
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#include "log.h"
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#include "string-util.h"
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int event_reset_time(
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sd_event *e,
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sd_event_source **s,
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clockid_t clock,
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uint64_t usec,
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uint64_t accuracy,
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sd_event_time_handler_t callback,
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void *userdata,
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int64_t priority,
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const char *description,
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bool force_reset) {
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bool created = false;
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int enabled, r;
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clockid_t c;
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assert(e);
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assert(s);
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if (*s) {
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if (!force_reset) {
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r = sd_event_source_get_enabled(*s, &enabled);
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if (r < 0)
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return log_debug_errno(r, "sd-event: Failed to query whether event source \"%s\" is enabled or not: %m",
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strna((*s)->description ?: description));
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if (enabled != SD_EVENT_OFF)
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return 0;
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}
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r = sd_event_source_get_time_clock(*s, &c);
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if (r < 0)
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return log_debug_errno(r, "sd-event: Failed to get clock id of event source \"%s\": %m", strna((*s)->description ?: description));
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if (c != clock)
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return log_debug_errno(SYNTHETIC_ERRNO(EINVAL),
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"sd-event: Current clock id %i of event source \"%s\" is different from specified one %i.",
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(int)c,
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strna((*s)->description ? : description),
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(int)clock);
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r = sd_event_source_set_time(*s, usec);
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if (r < 0)
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return log_debug_errno(r, "sd-event: Failed to set time for event source \"%s\": %m", strna((*s)->description ?: description));
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r = sd_event_source_set_time_accuracy(*s, accuracy);
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if (r < 0)
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return log_debug_errno(r, "sd-event: Failed to set accuracy for event source \"%s\": %m", strna((*s)->description ?: description));
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/* callback function is not updated, as we do not have sd_event_source_set_time_callback(). */
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(void) sd_event_source_set_userdata(*s, userdata);
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r = sd_event_source_set_enabled(*s, SD_EVENT_ONESHOT);
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if (r < 0)
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return log_debug_errno(r, "sd-event: Failed to enable event source \"%s\": %m", strna((*s)->description ?: description));
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} else {
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r = sd_event_add_time(e, s, clock, usec, accuracy, callback, userdata);
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if (r < 0)
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return log_debug_errno(r, "sd-event: Failed to create timer event \"%s\": %m", strna(description));
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created = true;
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}
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r = sd_event_source_set_priority(*s, priority);
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if (r < 0)
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return log_debug_errno(r, "sd-event: Failed to set priority for event source \"%s\": %m", strna((*s)->description ?: description));
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if (description) {
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r = sd_event_source_set_description(*s, description);
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if (r < 0)
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return log_debug_errno(r, "sd-event: Failed to set description for event source \"%s\": %m", description);
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}
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return created;
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}
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int event_source_disable(sd_event_source *s) {
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if (!s)
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return 0;
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return sd_event_source_set_enabled(s, SD_EVENT_OFF);
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}
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int event_source_is_enabled(sd_event_source *s) {
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if (!s)
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return false;
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return sd_event_source_get_enabled(s, NULL);
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}
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