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pulse-server: create pid file on start up

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Some PulseAudio clients, such as QEMU, check that the pid file exists
prior to initialization.
This commit is contained in:
Albert Chang 2021-03-12 23:44:53 -05:00 • committed by Wim Taymans
parent a9bf93030e
commit 2ae6851698
1 changed files with 26 additions and 0 deletions
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26
src/modules/module-protocol-pulse/pulse-server.c
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@ -6007,6 +6007,29 @@ error:
return res; return res;
} }
static int create_pid_file(void) {
int res;
char pid_file[PATH_MAX];
char pid_str[32];
if ((res = get_runtime_dir(pid_file, sizeof(pid_file), "pulse")) < 0) {
return res;
}
strcat(pid_file, "/pid");
snprintf(pid_str, sizeof(pid_str), "%lu\n", (unsigned long)getpid());
int fd = open(pid_file, O_CREAT | O_WRONLY, S_IRUSR | S_IWUSR);
if (fd < 0) {
res = -errno;
pw_log_error(NAME" failed to open pid file");
return res;
}
write(fd, pid_str, strlen(pid_str) + 1);
close(fd);
return 0;
}
static int make_inet_socket(struct server *server, char *name) static int make_inet_socket(struct server *server, char *name)
{ {
struct sockaddr_in addr; struct sockaddr_in addr;
@ -6097,6 +6120,9 @@ static struct server *create_server(struct impl *impl, char *address)
pw_log_error(NAME" %p: can't create server source: %m", impl); pw_log_error(NAME" %p: can't create server source: %m", impl);
goto error_close; goto error_close;
} }
if ((res = create_pid_file()) < 0) {
goto error_close;
}
return server; return server;
error_close: error_close: