static void cleanup(void) {
rmsckif();
if(haskey(& rc, "unix") && getpid() == ppid)
unlink(value(& rc, "unix"));
empty(& data);
empty(& rc);
empty(& track);
freelist(& playlist);
if(current_station) {
free(current_station);
current_station = NULL;
}
if(subfork)
waitpid(subfork, NULL, 0);
dump_queue();
/* Clean cache. */
if(!access(rcpath("cache"), R_OK | W_OK | X_OK)) {
const char * cache = rcpath("cache");
DIR * directory = opendir(cache);
if(directory != NULL) {
time_t expiry = 24 * 60 * 60; /* Expiration after 24h. */
struct dirent * entry;
struct stat status;
char path[PATH_MAX];
if(haskey(& rc, "expiry"))
expiry = atoi(value(& rc, "expiry"));
while((entry = readdir(directory)) != NULL) {
snprintf(path, sizeof(path), "%s/%s", cache, entry->d_name);
if(!stat(path, & status)) {
if(status.st_mtime < (time(NULL) - expiry)) {
unlink(path);
}
}
}
closedir(directory);
}
}
if(playfork)
kill(playfork, SIGUSR1);
}
/*
Takes pointer to a playlist, forks off a playback process and tries to play
the next track in the playlist. If there's already a playback process, it's
killed first (which means the currently played track is skipped).
*/
int play(struct playlist * list) {
unsigned i;
int pipefd[2];
char * keys [] = {
"creator", "title", "album", "duration", "station",
"lastfm:trackauth", "trackpage", "artistpage", "albumpage",
"image", "freeTrackURL",
};
assert(list != NULL);
if(!list->left)
return 0;
if(playfork) {
kill(playfork, SIGUSR1);
return !0;
}
enable(QUIET);
empty(& track);
for(i = 0; i < (sizeof(keys) / sizeof(char *)); ++i)
set(& track, keys[i], value(& list->track->track, keys[i]));
if(pipe(pipefd) != 0)
return !0;
playfork = fork();
if(!playfork) {
FILE * fd = NULL;
const char * location = value(& list->track->track, "location");
close(pipefd[1]);
rmsckif();
subfork = 0;
if(location != NULL) {
fetch(location, & fd, NULL, NULL);
if(fd != NULL) {
/*
If there was an error, tell the main process about it by
sending SIGUSR2.
*/
if(!playback(fd, pipefd[0]))
kill(getppid(), SIGUSR2);
close(pipefd[0]);
fshutdown(& fd);
}
}
exit(EXIT_SUCCESS);
}
close(pipefd[0]);
if(playpipe != 0)
close(playpipe);
playpipe = pipefd[1];
return !0;
}
