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fixup! softsynth: bound the wait for espeak to acknowledge a stop request

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Alexander Epaneshnikov 2026-06-11 11:34:40 +03:00 • committed by Samuel Thibault
commit 6835449642
2 changed files with 15 additions and 2 deletions
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15
src/espeakup.c
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@ -24,6 +24,7 @@
#include <stdlib.h>
#include <string.h>
#include <sys/file.h>
#include <time.h>
#include <unistd.h>
#include "espeakup.h"
@ -41,7 +42,8 @@ espeak_AUDIO_OUTPUT audio_mode;
pthread_cond_t runner_awake = PTHREAD_COND_INITIALIZER;
pthread_cond_t wake_stop = PTHREAD_COND_INITIALIZER;
pthread_cond_t stop_acknowledged = PTHREAD_COND_INITIALIZER;
/* Initialized in main: uses the monotonic clock for timed waits. */
pthread_cond_t stop_acknowledged;
pthread_mutex_t queue_guard = PTHREAD_MUTEX_INITIALIZER;
int espeakup_start_daemon(void)
@ -147,6 +149,17 @@ int main(int argc, char **argv)
struct synth_t s = {
.voice = "",
};
pthread_condattr_t monotonic_attr;
/* Condition variables used with pthread_cond_timedwait must use the
* monotonic clock, so that wall-clock adjustments (NTP, an
* installer setting the system time) cannot make the timeouts fire
* too early or far too late. */
pthread_condattr_init(&monotonic_attr);
pthread_condattr_setclock(&monotonic_attr, CLOCK_MONOTONIC);
pthread_cond_init(&stop_acknowledged, &monotonic_attr);
pthread_condattr_destroy(&monotonic_attr);
synth_queue = new_queue();
if (!synth_queue) {

2
src/softsynth.c
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@ -237,7 +237,7 @@ static void request_espeak_stop(void)
stop_requested = 1;
pthread_cond_signal(&runner_awake); // Wake runner, if necessary.
pthread_cond_signal(&wake_stop); // Wake runner, if necessary.
clock_gettime(CLOCK_REALTIME, &timeout);
clock_gettime(CLOCK_MONOTONIC, &timeout);
timeout.tv_sec += stopAckTimeout;
while (should_run && stop_requested && err != ETIMEDOUT)
// wait for acknowledgement.