/*
- * Copyright (C) 2005-2009 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2005-2014 Andre Noll <maan@systemlinux.org>
*
* Licensed under the GPL v2. For licencing details see COPYING.
*/
-/** \file audiod_command.c commands for para_audiod */
+/** \file audiod_command.c Commands for para_audiod. */
+#include <netinet/in.h>
+#include <sys/socket.h>
#include <regex.h>
#include <sys/types.h>
-#include <dirent.h>
+#include <arpa/inet.h>
+#include <sys/un.h>
+#include <netdb.h>
#include "para.h"
#include "audiod.cmdline.h"
#include "list.h"
#include "sched.h"
#include "ggo.h"
+#include "buffer_tree.h"
#include "filter.h"
#include "grab_client.h"
#include "error.h"
#include "net.h"
#include "daemon.h"
#include "string.h"
+#include "write.h"
#include "fd.h"
#include "audiod_command_list.h"
+extern struct sched sched;
extern char *stat_item_values[NUM_STAT_ITEMS];
+
+static struct audiod_command audiod_cmds[] = {DEFINE_AUDIOD_CMD_ARRAY};
+
/** Iterate over the array of all audiod commands. */
#define FOR_EACH_COMMAND(c) for (c = 0; audiod_cmds[c].name; c++)
num_clients++;
return 1;
}
+
+static void close_stat_client(struct stat_client *sc)
+{
+ PARA_INFO_LOG("closing client fd %d\n", sc->fd);
+ close(sc->fd);
+ list_del(&sc->node);
+ free(sc);
+ num_clients--;
+}
+
+/**
+ * Empty the status clients list.
+ *
+ * This iterates over the list of connected status clients, closes each client
+ * file descriptor and frees the resources.
+ */
+void close_stat_clients(void)
+{
+ struct stat_client *sc, *tmp;
+
+ list_for_each_entry_safe(sc, tmp, &client_list, node)
+ close_stat_client(sc);
+ assert(num_clients == 0);
+}
+
/**
* Write a message to all connected status clients.
*
struct para_buffer pb = {.flags = 0};
struct para_buffer pfpb = {.flags = PBF_SIZE_PREFIX};
const uint64_t one = 1;
+ char *msg = stat_item_values[item_num];
+ struct para_buffer *b;
list_for_each_entry_safe(sc, tmp, &client_list, node) {
- int fd = sc->fd, ret;
+ int ret;
if (!((one << item_num) & sc->item_mask))
continue;
- if (write_ok(fd) > 0) {
- struct para_buffer *b =
- (sc->flags & SCF_PARSER_FRIENDLY)? &pfpb : &pb;
- char *msg = stat_item_values[item_num];
- if (!b->buf)
- WRITE_STATUS_ITEM(b, item_num, "%s\n",
- msg? msg : "");
- ret = write(fd, b->buf, b->offset);
- if (ret == b->offset)
- continue;
- }
- /* write error or fd not ready for writing */
- close(fd);
- num_clients--;
- PARA_INFO_LOG("deleting client on fd %d\n", fd);
- list_del(&sc->node);
- free(sc);
+ b = (sc->flags & SCF_PARSER_FRIENDLY)? &pfpb : &pb;
+ if (!b->buf)
+ (void)WRITE_STATUS_ITEM(b, item_num, "%s\n",
+ msg? msg : "");
+ ret = write(sc->fd, b->buf, b->offset);
+ if (ret == b->offset)
+ continue;
+ /* write error or short write */
+ close_stat_client(sc);
dump_stat_client_list();
}
free(pb.buf);
free(pfpb.buf);
-// if (num_clients)
-// PARA_DEBUG_LOG("%d client(s)\n", num_clients);
}
/**
static int get_play_time_slot_num(void)
{
- int i, oldest = -1;
+ int i, oldest_slot = -1;
+ struct timeval oldest_wstime = {0, 0};
FOR_EACH_SLOT(i) {
struct slot_info *s = &slot[i];
- if (!s->wng)
+ struct timeval wstime;
+ if (!s->wns || !s->wns[0].btrn)
continue;
- if (oldest >= 0 && tv_diff(&s->wstime, &slot[oldest].wstime,
- NULL) > 0)
+ btr_get_node_start(s->wns[0].btrn, &wstime);
+ if (oldest_slot >= 0 && tv_diff(&wstime, &oldest_wstime, NULL) > 0)
continue;
- oldest = i;
+ oldest_wstime = wstime;
+ oldest_slot = i;
}
- return oldest;
+ //PARA_CRIT_LOG("oldest slot: %d\n", oldest_slot);
+ return oldest_slot;
}
__malloc static char *decoder_flags(void)
char flag = '0';
if (s->receiver_node)
flag += 1;
- if (s->fc)
+ if (s->fns)
flag += 2;
- if (s->wng)
+ if (s->wns)
flag += 4;
flags[i] = flag;
}
* to each individual command to close the fd if necessary.
*/
-int com_help(int fd, int argc, char **argv)
+static int com_help(int fd, int argc, char **argv)
{
int i, ret;
char *buf;
return ret;
}
-int com_tasks(int fd, __a_unused int argc, __a_unused char **argv)
+static int com_tasks(int fd, __a_unused int argc, __a_unused char **argv)
{
- char *tl = get_task_list();
+ char *tl = get_task_list(&sched);
int ret = 1;
if (tl)
ret = client_write(fd, tl);
return ret;
}
-int com_kill(int fd, int argc, char **argv)
-{
- int i, ret = 1;
- if (argc < 2)
- return -E_AUDIOD_SYNTAX;
- for (i = 1; i < argc; i++) {
- ret = kill_task(argv[i]);
- if (ret < 0)
- break;
- }
- if (ret > 0)
- close(fd);
- return ret;
-}
-
-int com_stat(int fd, int argc, char **argv)
+static int com_stat(int fd, int argc, char **argv)
{
int i, ret, parser_friendly = 0;
uint64_t mask = 0;
const uint64_t one = 1;
struct para_buffer b = {.flags = 0};
+ ret = mark_fd_nonblocking(fd);
+ if (ret < 0)
+ return ret;
for (i = 1; i < argc; i++) {
const char *arg = argv[i];
if (arg[0] != '-')
if (!strncmp(arg, "-p", 2)) {
parser_friendly = 1;
b.flags = PBF_SIZE_PREFIX;
- continue;
}
}
if (i >= argc)
char *item = stat_item_values[i];
if (!((one << i) & mask))
continue;
- WRITE_STATUS_ITEM(&b, i, "%s\n", item? item : "");
+ (void)WRITE_STATUS_ITEM(&b, i, "%s\n", item? item : "");
}
ret = client_write(fd, b.buf);
if (ret >= 0)
return ret;
}
-int com_grab(int fd, int argc, char **argv)
+static int com_grab(int fd, int argc, char **argv)
{
- return grab_client_new(fd, argc, argv);
+ return grab_client_new(fd, argc, argv, &sched);
}
-__noreturn int com_term(int fd, __a_unused int argc, __a_unused char **argv)
+__noreturn static int com_term(int fd, __a_unused int argc, __a_unused char **argv)
{
close(fd);
clean_exit(EXIT_SUCCESS, "terminating on user request");
}
-int com_on(int fd, __a_unused int argc, __a_unused char **argv)
+static int com_on(int fd, __a_unused int argc, __a_unused char **argv)
{
audiod_status = AUDIOD_ON;
close(fd);
return 1;
}
-int com_off(int fd, __a_unused int argc, __a_unused char **argv)
+static int com_off(int fd, __a_unused int argc, __a_unused char **argv)
{
audiod_status = AUDIOD_OFF;
close(fd);
return 1;
}
-int com_sb(int fd, __a_unused int argc, __a_unused char **argv)
+static int com_sb(int fd, __a_unused int argc, __a_unused char **argv)
{
audiod_status = AUDIOD_STANDBY;
close(fd);
return 1;
}
-int com_cycle(int fd, int argc, char **argv)
+static int com_cycle(int fd, int argc, char **argv)
{
switch (audiod_status) {
case AUDIOD_ON:
}
/**
- * handle arriving connections on the local socket
+ * Handle arriving connections on the local socket.
*
- * \param accept_fd the fd to call accept() on
+ * \param accept_fd The fd to accept connections on.
+ * \param rfds If \a accept_fd is not set in \a rfds, do nothing.
*
- * This is called whenever para_audiod's main task detects an incoming
- * connection by the readability of \a accept_fd. This function reads the
- * command sent by the peer, checks the connecting user's permissions by using
- * unix socket credentials (if supported by the OS) and calls the corresponding
- * command handler if permissions are OK.
+ * This is called in each iteration of the select loop. If there is an incoming
+ * connection on \a accept_fd, this function reads the command sent by the peer,
+ * checks the connecting user's permissions by using unix socket credentials
+ * (if supported by the OS) and calls the corresponding command handler if
+ * permissions are OK.
*
- * \return positive on success, negative on errors
+ * \return Positive on success, negative on errors, zero if there was no
+ * connection to accept.
*
* \sa para_accept(), recv_cred_buffer()
* */
-int handle_connect(int accept_fd)
+int handle_connect(int accept_fd, fd_set *rfds)
{
- int i, argc, ret, clifd = -1;
+ int i, argc, ret, clifd;
char buf[MAXLINE], **argv = NULL;
struct sockaddr_un unix_addr;
uid_t uid;
- ret = para_accept(accept_fd, &unix_addr, sizeof(struct sockaddr_un));
- if (ret < 0)
- goto out;
- clifd = ret;
+ ret = para_accept(accept_fd, rfds, &unix_addr, sizeof(struct sockaddr_un), &clifd);
+ if (ret <= 0)
+ return ret;
ret = recv_cred_buffer(clifd, buf, sizeof(buf) - 1);
if (ret < 0)
goto out;
if (ret < 0)
goto out;
ret = create_argv(buf, "\n", &argv);
- if (ret < 0)
+ if (ret <= 0)
goto out;
argc = ret;
//PARA_INFO_LOG("argv[0]: %s, argc = %d\n", argv[0], argc);
/**
* Send the current audiod status to all connected stat clients.
+ *
+ * \param force Whether to write unchanged items.
*/
-void audiod_status_dump(void)
+void audiod_status_dump(bool force)
{
int slot_num = get_play_time_slot_num();
char *old, *new;
old = stat_item_values[SI_PLAY_TIME];
new = get_time_string(slot_num);
if (new) {
- if (!old || strcmp(old, new)) {
+ if (force || !old || strcmp(old, new)) {
free(old);
stat_item_values[SI_PLAY_TIME] = new;
stat_client_write_item(SI_PLAY_TIME);
free(new);
}
- new = uptime_str();
+ new = get_server_uptime_str(now);
old = stat_item_values[SI_AUDIOD_UPTIME];
- if (!old || strcmp(old, new)) {
+ if (force || !old || strcmp(old, new)) {
free(old);
stat_item_values[SI_AUDIOD_UPTIME] = new;
stat_client_write_item(SI_AUDIOD_UPTIME);
old = stat_item_values[SI_AUDIOD_STATUS];
new = audiod_status_string();
- if (!old || strcmp(old, new)) {
+ if (force || !old || strcmp(old, new)) {
free(old);
stat_item_values[SI_AUDIOD_STATUS] = new;
stat_client_write_item(SI_AUDIOD_STATUS);
old = stat_item_values[SI_DECODER_FLAGS];
new = decoder_flags();
- if (!old || strcmp(old, new)) {
+ if (force || !old || strcmp(old, new)) {
free(old);
stat_item_values[SI_DECODER_FLAGS] = new;
stat_client_write_item(SI_DECODER_FLAGS);
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