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#include <signal.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include "polyplib.h"
#include "polyplib-error.h"
#include "mainloop.h"
#include "mainloop-signal.h"
static struct pa_context *context = NULL;
static struct pa_mainloop_api *mainloop_api = NULL;
static enum {
NONE,
EXIT,
STAT
} action = NONE;
static void quit(int ret) {
assert(mainloop_api);
mainloop_api->quit(mainloop_api, ret);
}
static void context_die_callback(struct pa_context *c, void *userdata) {
assert(c);
fprintf(stderr, "Connection to server shut down, exiting.\n");
quit(1);
}
static void context_drain_complete(struct pa_context *c, void *userdata) {
assert(c);
fprintf(stderr, "Connection to server shut down, exiting.\n");
quit(0);
}
static void drain(void) {
if (pa_context_drain(context, context_drain_complete, NULL) < 0)
quit(0);
}
static void stat_callback(struct pa_context *c, uint32_t blocks, uint32_t total, void *userdata) {
if (blocks == (uint32_t) -1) {
fprintf(stderr, "Failed to get statistics: %s\n", pa_strerror(pa_context_errno(c)));
quit(1);
return;
}
fprintf(stderr, "Currently in use: %u blocks containing %u bytes total.\n", blocks, total);
drain();
}
static void context_complete_callback(struct pa_context *c, int success, void *userdata) {
assert(c);
if (!success) {
fprintf(stderr, "Connection failed: %s\n", pa_strerror(pa_context_errno(c)));
goto fail;
}
fprintf(stderr, "Connection established.\n");
if (action == STAT)
pa_context_stat(c, stat_callback, NULL);
else {
assert(action == EXIT);
pa_context_exit(c);
drain();
}
return;
fail:
quit(1);
}
static void exit_signal_callback(void *id, int sig, void *userdata) {
fprintf(stderr, "Got SIGINT, exiting.\n");
quit(0);
}
int main(int argc, char *argv[]) {
struct pa_mainloop* m = NULL;
int ret = 1, r;
if (argc >= 2) {
if (!strcmp(argv[1], "stat"))
action = STAT;
else if (!strcmp(argv[1], "exit"))
action = EXIT;
}
if (action == NONE) {
fprintf(stderr, "No valid action specified. Use one of: stat, exit\n");
goto quit;
}
if (!(m = pa_mainloop_new())) {
fprintf(stderr, "pa_mainloop_new() failed.\n");
goto quit;
}
mainloop_api = pa_mainloop_get_api(m);
r = pa_signal_init(mainloop_api);
assert(r == 0);
pa_signal_register(SIGINT, exit_signal_callback, NULL);
signal(SIGPIPE, SIG_IGN);
if (!(context = pa_context_new(mainloop_api, argv[0]))) {
fprintf(stderr, "pa_context_new() failed.\n");
goto quit;
}
if (pa_context_connect(context, NULL, context_complete_callback, NULL) < 0) {
fprintf(stderr, "pa_context_connext() failed.\n");
goto quit;
}
pa_context_set_die_callback(context, context_die_callback, NULL);
if (pa_mainloop_run(m, &ret) < 0) {
fprintf(stderr, "pa_mainloop_run() failed.\n");
goto quit;
}
quit:
if (context)
pa_context_free(context);
if (m) {
pa_signal_done();
pa_mainloop_free(m);
}
return ret;
}
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