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/*
* espeakup - interface which allows speakup to use espeak
*
* Copyright (C) 2008 William Hubbs
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <errno.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <pthread.h>
#include "espeakup.h"
/* program version */
const char *Version = "0.71";
/* path to our pid file */
const char *pidPath = "/var/run/espeakup.pid";
/* default voice settings */
const int defaultFrequency = 5;
const int defaultPitch = 5;
const int defaultRate = 5;
const int defaultVolume = 5;
char *defaultVoice = NULL;
int debug = 0;
int espeakup_is_running(void)
{
int rc;
FILE *pidFile;
pid_t pid;
rc = 0;
pidFile = fopen(pidPath, "r");
if (pidFile) {
fscanf(pidFile, "%d", &pid);
fclose(pidFile);
if (!kill(pid, 0) || errno != ESRCH)
rc = 1;
}
return rc;
}
int create_pid_file(void)
{
FILE *pidFile;
pidFile = fopen(pidPath, "w");
if (!pidFile)
return -1;
fprintf(pidFile, "%d\n", getpid());
fclose(pidFile);
return 0;
}
void espeakup_sighandler(int sig)
{
if (debug)
printf("Caught signal %i\n", sig);
/* clear the queue */
queue_clear();
/* shut down espeak and close the softsynth */
espeak_Terminate();
close_softsynth();
if (!debug)
unlink(pidPath);
exit(0);
}
int main(int argc, char **argv)
{
pthread_t queue_thread_id;
struct synth_t s = {
.voice = "",
};
/* process command line options */
process_cli(argc, argv);
/* Is the espeakup daemon running? */
if (espeakup_is_running()) {
printf("Espeakup is already running!\n");
return 1;
}
/* open the softsynth. */
if (! open_softsynth()) {
perror("Unable to open the softsynth device");
return 3;
}
/* register signal handler */
signal(SIGINT, espeakup_sighandler);
signal(SIGTERM, espeakup_sighandler);
if (!debug) {
/* become a daemon */
daemon(0, 1);
}
/* initialize espeak */
espeak_Initialize(AUDIO_OUTPUT_PLAYBACK, 0, NULL, 0);
/* Setup initial voice parameters */
if (defaultVoice) {
set_voice(&s, defaultVoice);
free(defaultVoice);
defaultVoice = NULL;
}
set_frequency(&s, defaultFrequency, ADJ_SET);
set_pitch(&s, defaultPitch, ADJ_SET);
set_rate(&s, defaultRate, ADJ_SET);
set_volume(&s, defaultVolume, ADJ_SET);
espeak_SetParameter(espeakCAPITALS, 0, 0);
/* Spawn our queue-processing thread. */
int err = pthread_create(&queue_thread_id, NULL, &queue_runner, &s);
if (err != 0) {
return 4;
}
if (!debug) {
/* We are now ready, write our pid file. */
if (create_pid_file() < 0) {
perror("Unable to create pid file");
return 2;
}
}
/* run the main loop */
main_loop(&s);
return 0;
}
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