/*
- * Copyright (C) 2007-2009 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2007-2011 Andre Noll <maan@systemlinux.org>
*
* Licensed under the GPL v2. For licencing details see COPYING.
*/
*(uint32_t *) buf = afs_socket_cookie;
*(int *) (buf + sizeof(afs_socket_cookie)) = query_shmid;
- ret = create_remote_socket(conf.afs_socket_arg);
+ ret = connect_local_socket(conf.afs_socket_arg);
if (ret < 0)
goto out;
fd = ret;
static void afs_signal_post_select(struct sched *s, struct task *t)
{
- struct signal_task *st = container_of(t, struct signal_task, task);
+ int signum;
+
if (getppid() == 1) {
PARA_EMERG_LOG("para_server died\n");
goto shutdown;
}
- if (!FD_ISSET(st->fd, &s->rfds))
+ signum = para_next_signal(&s->rfds);
+ if (signum == 0)
return;
- st->signum = para_next_signal();
- if (st->signum == SIGHUP) {
+ if (signum == SIGHUP) {
close_afs_tables();
parse_config_or_die(1);
t->error = open_afs_tables();
init_admissible_files(current_mop);
return;
}
- PARA_EMERG_LOG("terminating on signal %d\n", st->signum);
+ PARA_EMERG_LOG("terminating on signal %d\n", signum);
shutdown:
sched_shutdown();
t->error = -E_AFS_SIGNAL;
return shm_detach(query_shm);
}
-static int execute_server_command(void)
+static int execute_server_command(fd_set *rfds)
{
char buf[8];
- int ret = recv_bin_buffer(server_socket, buf, sizeof(buf) - 1);
+ size_t n;
+ int ret = read_nonblock(server_socket, buf, sizeof(buf) - 1, rfds, &n);
- if (ret <= 0) {
- if (!ret)
- ret = -ERRNO_TO_PARA_ERROR(ECONNRESET);
- goto err;
- }
- buf[ret] = '\0';
- PARA_DEBUG_LOG("received: %s\n", buf);
- ret = -E_BAD_CMD;
+ if (ret < 0 || n == 0)
+ return ret;
+ buf[n] = '\0';
if (strcmp(buf, "new"))
- goto err;
- ret = open_next_audio_file();
-err:
- return ret;
+ return -E_BAD_CMD;
+ return open_next_audio_file();
}
-static void execute_afs_command(int fd, uint32_t expected_cookie)
+/* returns 0 if no data available, 1 else */
+static int execute_afs_command(int fd, fd_set *rfds, uint32_t expected_cookie)
{
uint32_t cookie;
int query_shmid;
char buf[sizeof(cookie) + sizeof(query_shmid)];
- int ret = recv_bin_buffer(fd, buf, sizeof(buf));
+ size_t n;
+ int ret = read_nonblock(fd, buf, sizeof(buf), rfds, &n);
if (ret < 0)
goto err;
- if (ret != sizeof(buf)) {
+ if (n == 0)
+ return 0;
+ if (n != sizeof(buf)) {
PARA_NOTICE_LOG("short read (%d bytes, expected %lu)\n",
ret, (long unsigned) sizeof(buf));
- return;
+ return 1;
}
cookie = *(uint32_t *)buf;
if (cookie != expected_cookie) {
- PARA_NOTICE_LOG("received invalid cookie(got %u, expected %u)\n",
+ PARA_NOTICE_LOG("received invalid cookie (got %u, expected %u)\n",
(unsigned)cookie, (unsigned)expected_cookie);
- return;
+ return 1;
}
query_shmid = *(int *)(buf + sizeof(cookie));
if (query_shmid < 0) {
PARA_WARNING_LOG("received invalid query shmid %d)\n",
query_shmid);
- return;
+ return 1;
}
ret = call_callback(fd, query_shmid);
if (ret >= 0)
- return;
+ return 1;
err:
PARA_NOTICE_LOG("%s\n", para_strerror(-ret));
+ return 1;
}
/** Shutdown connection if query has not arrived until this many seconds. */
struct afs_client *client, *tmp;
int fd, ret;
- if (FD_ISSET(server_socket, &s->rfds)) {
- ret = execute_server_command();
- if (ret < 0) {
- PARA_EMERG_LOG("%s\n", para_strerror(-ret));
- sched_shutdown();
- return;
- }
+ ret = execute_server_command(&s->rfds);
+ if (ret < 0) {
+ PARA_EMERG_LOG("%s\n", para_strerror(-ret));
+ sched_shutdown();
+ return;
}
-
/* Check the list of connected clients. */
list_for_each_entry_safe(client, tmp, &afs_client_list, node) {
- if (FD_ISSET(client->fd, &s->rfds))
- execute_afs_command(client->fd, ct->cookie);
- else { /* prevent bogus connection flooding */
+ ret = execute_afs_command(client->fd, &s->rfds, ct->cookie);
+ if (ret == 0) { /* prevent bogus connection flooding */
struct timeval diff;
tv_diff(now, &client->connect_time, &diff);
if (diff.tv_sec < AFS_CLIENT_TIMEOUT)
free(client);
}
/* Accept connections on the local socket. */
- if (!FD_ISSET(ct->fd, &s->rfds))
- return;
- ret = para_accept(ct->fd, &unix_addr, sizeof(unix_addr));
- if (ret < 0) {
+ ret = para_accept(ct->fd, &s->rfds, &unix_addr, sizeof(unix_addr), &fd);
+ if (ret < 0)
PARA_NOTICE_LOG("%s\n", para_strerror(-ret));
+ if (ret <= 0)
return;
- }
- fd = ret;
ret = mark_fd_nonblocking(fd);
if (ret < 0) {
PARA_NOTICE_LOG("%s\n", para_strerror(-ret));
}
}
+/**
+ * Dummy event handler for the images table.
+ *
+ * \param event Unused.
+ * \param pb Unused.
+ * \param data Unused.
+ *
+ * This table does not honor events.
+ */
int images_event_handler(__a_unused enum afs_events event,
__a_unused struct para_buffer *pb, __a_unused void *data)
{
return 1;
}
+/**
+ * Dummy event handler for the lyrics table.
+ *
+ * \param event Unused.
+ * \param pb Unused.
+ * \param data Unused.
+ *
+ * This table does not honor events.
+ */
int lyrics_event_handler(__a_unused enum afs_events event,
__a_unused struct para_buffer *pb, __a_unused void *data)
{
projects / paraslash.git / blobdiff