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main.c
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/*
This file is part of Deadbeef Player source code
http://deadbeef.sourceforge.net
application launcher, compatible with GNU/Linux and most other POSIX systems
Copyright (C) 2009-2017 Oleksiy Yakovenko
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
Oleksiy Yakovenko waker@users.sourceforge.net
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <stdlib.h>
#include <stddef.h>
#include <time.h>
#include <utime.h>
#include <locale.h>
#include <sys/time.h>
#ifdef __linux__
#include <sys/prctl.h>
#endif
#if !defined(__linux__) && !defined(_POSIX_C_SOURCE)
#define _POSIX_C_SOURCE 1
#endif
#include <limits.h>
#include <errno.h>
#include <sys/stat.h>
#include <sys/types.h>
// #define USE_INET_SOCKET
#define DEFAULT_LISTENING_PORT 48879
#ifdef __MINGW32__
#define USE_INET_SOCKET
#include <winsock2.h>
#else
#include <sys/socket.h>
#include <sys/select.h>
#include <sys/un.h>
#include <sys/errno.h>
#ifdef USE_INET_SOCKET
#include <netinet/in.h>
#include <arpa/inet.h>
#endif
#endif
#include <sys/fcntl.h>
#include <signal.h>
#ifdef __GLIBC__
#include <execinfo.h>
#endif
#include <unistd.h>
#include "gettext.h"
#include "playlist.h"
#include "threading.h"
#include "messagepump.h"
#include "streamer.h"
#include "playmodes.h"
#include "conf.h"
#include "volume.h"
#include "plugins.h"
#include "common.h"
#include "junklib.h"
#ifdef OSX_APPBUNDLE
#include "cocoautil.h"
#endif
#include "playqueue.h"
#include "tf.h"
#include "logger.h"
#ifdef OSX_APPBUNDLE
#include "scriptable/scriptable.h"
#include "scriptable/scriptable_dsp.h"
#include "scriptable/scriptable_encoder.h"
#endif
#ifndef PREFIX
#error PREFIX must be defined
#endif
#ifdef OSX_APPBUNDLE
#define SYS_CONFIG_DIR "Library/Preferences"
#elif defined(__MINGW32__)
#define SYS_CONFIG_DIR "AppData/Roaming"
#else
#define SYS_CONFIG_DIR ".config"
#endif
// some common global variables
char sys_install_path[PATH_MAX]; // see deadbeef->get_prefix
char confdir[PATH_MAX]; // $HOME/.config
char dbconfdir[PATH_MAX]; // $HOME/.config/deadbeef
char dbinstalldir[PATH_MAX]; // see deadbeef->get_prefix
char dbdocdir[PATH_MAX]; // see deadbeef->get_doc_dir
char dbplugindir[PATH_MAX]; // see deadbeef->get_plugin_dir
char dbpixmapdir[PATH_MAX]; // see deadbeef->get_pixmap_dir
char dbcachedir[PATH_MAX];
char dbruntimedir[PATH_MAX]; // /run/user/<uid>/deadbeef
char dbresourcedir[PATH_MAX];
char use_gui_plugin[100];
static int _previous_session_did_crash;
static void
print_help (void) {
#ifdef ENABLE_NLS
bind_textdomain_codeset (PACKAGE, "");
#endif
fprintf (stdout, _("Usage: deadbeef [options] [--] [file(s)]\n"));
fprintf (stdout, _("Options:\n"));
fprintf (stdout, _(" --help or -h Print help (this message) and exit\n"));
fprintf (stdout, _(" --quit Quit player\n"));
fprintf (stdout, _(" --version Print version info and exit\n"));
fprintf (stdout, _(" --play Start playback\n"));
fprintf (stdout, _(" --stop Stop playback\n"));
fprintf (stdout, _(" --pause Pause playback\n"));
fprintf (stdout, _(" --toggle-pause Toggle pause\n"));
fprintf (stdout, _(" --play-pause Start playback if stopped, toggle pause otherwise\n"));
fprintf (stdout, _(" --next Next song in playlist\n"));
fprintf (stdout, _(" --prev Previous song in playlist\n"));
fprintf (stdout, _(" --random Random song in playlist\n"));
fprintf (stdout, _(" --queue Append file(s) to existing playlist\n"));
fprintf (stdout, _(" --gui PLUGIN Tells which GUI plugin to use, default is \"GTK2\"\n"));
fprintf (stdout, _(" --nowplaying FMT Print formatted track name to stdout\n"));
fprintf (stdout, _(" FMT %%-syntax: [a]rtist, [t]itle, al[b]um,\n"
" [l]ength, track[n]umber, [y]ear, [c]omment,\n"
" copy[r]ight, [e]lapsed\n"));
fprintf (stdout, _(" example: --nowplaying \"%%a - %%t\" should print \"artist - title\"\n"));
fprintf (stdout, _(" for more info, see %s\n"), "http://github.com/DeaDBeeF-Player/deadbeef/wiki/Title-formatting");
fprintf (stdout, _(" NOTE: --nowplaying is deprecated.\n"));
fprintf (stdout, _(" --nowplaying-tf FMT Print formatted track name to stdout, using the new title formatting\n"));
fprintf (stdout, _(" FMT syntax: http://github.com/DeaDBeeF-Player/deadbeef/wiki/Title-formatting-2.0\n"));
fprintf (stdout, _(" example: --nowplaying-tf \"%%artist%% - %%title%%\" should print \"artist - title\"\n"));
fprintf (stdout, _(" --volume [NUM] Print or set deadbeef volume level.\n"));
fprintf (stdout, _(" The NUM parameter can be specified in percents (absolute value or increment/decrement)\n"));
fprintf (stdout, _(" or in dB [-50, 0] (if with suffix).\n"));
fprintf (stdout, _(" Examples: --volume 80, --volume +10, --volume -5 or --volume -20dB\n"));
fprintf (stdout, _(" --plugin=[PLUG] Send commands to a specific plugin. Use PLUG=main to send commands to deadbeef itself.\n"));
fprintf (stdout, _(" To get plugin specific commands use --plugin=[PLUG] --help\n"));
fprintf (stdout, _(" --plugin-list List all available plugins including indication for plugins that support commands.\n"));
#ifdef ENABLE_NLS
bind_textdomain_codeset (PACKAGE, "UTF-8");
#endif
}
// Parse command line an return a single buffer with all
// parameters concatenated (separated by \0). File names
// are resolved.
char*
prepare_command_line (int argc, char *argv[], int *size) {
int seen_ddash = 0;
// initial buffer limit, will expand if needed
size_t limit = 4096;
char *buf = (char*) malloc (limit);
if (argc <= 1) {
buf[0] = 0;
*size = 1;
return buf;
}
int p = 0;
for (int i = 1; i < argc; i++) {
// if argument is a filename, try to resolve it
char resolved[PATH_MAX];
char *arg;
if ((!strncmp ("--", argv[i], 2) && !seen_ddash) || !realpath (argv[i], resolved)) {
arg = argv[i];
}
else {
arg = resolved;
}
// make sure that there is enough space in the buffer;
// re-allocate, if needed
size_t arglen = strlen(arg) + 1;
while (p + arglen >= limit) {
char *newbuf = (char*) malloc (limit * 2);
memcpy (newbuf, buf, p);
free (buf);
limit *= 2;
buf = newbuf;
}
memcpy (buf + p, arg, arglen);
p += arglen;
if (!strcmp("--", argv[i])) {
seen_ddash = 1;
}
}
*size = p;
return buf;
}
typedef struct {
ddb_response_t base;
char *buffer;
size_t buffer_size;
size_t buffer_capacity;
} ddb_response_impl_t;
static int
_append_response(ddb_response_t *response, char *buffer, size_t size) {
ddb_response_impl_t *impl = (ddb_response_impl_t *)response;
size_t new_size = impl->buffer_size + size;
if (new_size > impl->buffer_capacity) {
impl->buffer_capacity = new_size + 1000;
impl->buffer = realloc (impl->buffer, impl->buffer_capacity);
}
memcpy (impl->buffer + impl->buffer_size, buffer, size);
impl->buffer_size = new_size;
return 0;
}
// this function executes server-side commands only
// must be called only from within server
// -1 error, program must exit with error code -1
// 0 proceed normally as nothing happened
// 1 no error, but program must exit with error code 0
// 2 don't load playlist on startup
// when executed in remote server -- error code will be ignored
int
server_exec_command_line (const char *cmdline, int len, char *sendback, int sbsize) {
if (sendback) {
sendback[0] = 0;
}
const char *parg = cmdline;
const char *pend = cmdline + len;
int queue = 0;
while (parg < pend) {
if (strlen (parg) >= 2 && parg[0] == '-' && parg[1] != '-') {
parg += strlen (parg);
parg++;
return 0; // running under osx debugger?
}
else if (!strcmp (parg, "--nowplaying")) {
parg += strlen (parg);
parg++;
if (parg >= pend) {
const char *errtext = "--nowplaying expects format argument";
if (sendback) {
snprintf (sendback, sbsize, "\2%s\n", errtext);
return 0;
}
else {
trace_err ("%s\n", errtext);
return -1;
}
}
char out[2048];
playItem_t *curr = streamer_get_playing_track ();
if (curr) {
pl_format_title (curr, -1, out, sizeof (out), -1, parg);
pl_item_unref (curr);
}
else {
strcpy (out, "nothing");
}
if (sendback) {
snprintf (sendback, sbsize, "\1%s", out);
}
else {
fwrite (out, 1, strlen (out), stdout);
return 1; // exit
}
}
else if (!strcmp (parg, "--nowplaying-tf")) {
parg += strlen (parg);
parg++;
if (parg >= pend) {
const char *errtext = "--nowplaying-tf expects format argument";
if (sendback) {
snprintf (sendback, sbsize, "\2%s\n", errtext);
return 0;
}
else {
trace_err ("%s\n", errtext);
return -1;
}
}
char out[2048];
playItem_t *curr = streamer_get_playing_track ();
char *script = tf_compile (parg);
if (script) {
ddb_tf_context_t ctx = {
._size = sizeof (ddb_tf_context_t),
.it = (DB_playItem_t *)curr,
};
tf_eval (&ctx, script, out, sizeof (out));
tf_free (script);
}
else {
*out = 0;
}
if (curr) {
pl_item_unref (curr);
}
if (sendback) {
snprintf (sendback, sbsize, "\1%s", out);
}
else {
fwrite (out, 1, strlen (out), stdout);
return 1; // exit
}
}
else if (!strcmp (parg, "--next")) {
messagepump_push (DB_EV_NEXT, 0, 0, 0);
return 0;
}
else if (!strcmp (parg, "--prev")) {
messagepump_push (DB_EV_PREV, 0, 0, 0);
return 0;
}
else if (!strcmp (parg, "--play")) {
messagepump_push (DB_EV_PLAY_CURRENT, 0, 0, 0);
return 0;
}
else if (!strcmp (parg, "--stop")) {
messagepump_push (DB_EV_STOP, 0, 0, 0);
return 0;
}
else if (!strcmp (parg, "--pause")) {
messagepump_push (DB_EV_PAUSE, 0, 0, 0);
return 0;
}
else if (!strcmp (parg, "--toggle-pause")) {
messagepump_push (DB_EV_TOGGLE_PAUSE, 0, 0, 0);
return 0;
}
else if (!strcmp (parg, "--play-pause")) {
ddb_playback_state_t state = deadbeef->get_output ()->state ();
if (state == DDB_PLAYBACK_STATE_PLAYING) {
deadbeef->sendmessage (DB_EV_PAUSE, 0, 0, 0);
}
else {
deadbeef->sendmessage (DB_EV_PLAY_CURRENT, 0, 0, 0);
}
return 0;
}
else if (!strcmp (parg, "--random")) {
messagepump_push (DB_EV_PLAY_RANDOM, 0, 0, 0);
return 0;
}
else if (!strcmp (parg, "--queue")) {
queue = 1;
}
else if (!strcmp (parg, "--quit")) {
messagepump_push (DB_EV_TERMINATE, 0, 0, 0);
}
else if (!strcmp (parg, "--gui")) {
// need to skip --gui here, it is handled in the client cmdline
parg += strlen (parg);
parg++;
if (parg >= pend) {
break;
}
parg += strlen (parg);
parg++;
continue;
}
else if (!strcmp (parg, "--volume")) {
parg += strlen (parg);
parg++;
if (parg < pend) {
char *end;
const int pct = (int)strtol (parg, &end, 10);
if (!strcasecmp(end, "db")) {
deadbeef->volume_set_db (pct);
} else {
const char is_increment = (parg[0] == '-' || parg[0] == '+');
const float new_volume = is_increment ? deadbeef->volume_get_db() * 2 + 100 + pct : pct;
deadbeef->volume_set_db ((new_volume/100.0 * 50) - 50);
}
}
if (sendback) {
snprintf (sendback, sbsize, "\1%.0f%% (%.2f dB)", deadbeef->volume_get_db() * 2 + 100 , deadbeef->volume_get_db());
}
return 0;
}
else if (!strncmp(parg, "--plugin=", strlen("--plugin="))) {
if (!strcmp(parg + strlen("--plugin="), "main")) {
parg += strlen(parg) + 1;
continue;
}
// get length until pend or next "--plugin" occurence
int parg_len = 0;
while ((parg + parg_len) < pend) {
if (parg_len && !strncmp(parg + parg_len, "--plugin=", strlen("--plugin="))) {
break;
}
parg_len += strlen(parg + parg_len) + 1;
}
parg_len--;
const char *plugid = parg + strlen("--plugin=");
DB_plugin_t *p = plug_get_for_id(plugid);
if (p && p->api_vmajor == 1 && p->api_vminor >= 15 && p->exec_cmdline != NULL) {
ddb_response_impl_t response = {
.base._size = sizeof (ddb_response_t),
.base.append = _append_response,
};
size_t plugarg_len = parg_len - strlen(parg) - 1;
int ret = p->exec_cmdline(parg + strlen(parg) + 1, (int) plugarg_len, &response.base);
off_t out_size = response.buffer_size;
if (out_size > sbsize - 2) {
out_size = sbsize - 2;
}
// copy plugin output to sendback (if any output produced)
if (out_size > 0 && sendback) {
sendback[0]='\1';
memcpy (sendback + 1, response.buffer, out_size);
sendback[out_size + 1] = 0;
}
if (ret && sendback) {
// TODO have specific error codes sent to client?
sendback[0] = '\2';
}
free (response.buffer);
}
parg += parg_len + 1;
continue;
}
else if (!strcmp(parg, "--plugin-list")) {
char out[2048];
int out_pos = 0;
int i = 0;
DB_plugin_t ** plugins = plug_get_list();
while (plugins[i] && (2048 - out_pos) >= 0) {
const char *format = plugins[i]->exec_cmdline ? "\033[32m%s\033[0m, " : "%s, ";
out_pos += snprintf (out + out_pos, 2048 - out_pos, format, plugins[i]->id);
i++;
}
out[out_pos - 1] = '\0';
out[out_pos - 2] = '\n';
if (sendback) {
snprintf (sendback, sbsize, "\1%s", out);
}
}
else if (parg[0] != '-') {
break; // unknown option is filename
}
parg += strlen (parg);
parg++;
}
if (parg < pend) {
if (add_paths(parg, (int)(pend - parg), queue, sendback, sbsize) > 0) {
return 0; // files not loaded, but continue normally
}
if (!queue) {
return 2; // don't reload playlist at startup
}
}
return 0;
}
// parses a list of paths and adds them to deadbeef
// 0 - no error, files loaded
// 1 - no error, but files not loaded
int
add_paths(const char *paths, int len, int queue, char *sendback, int sbsize) {
const char *parg = paths;
const char *pend = paths + len;
if (conf_get_int ("cli_add_to_specific_playlist", 1)) {
char str[200];
conf_get_str ("cli_add_playlist_name", "Default", str, sizeof (str));
int idx = plt_find (str);
if (idx < 0) {
idx = plt_add (plt_get_count (), str);
}
if (idx >= 0) {
plt_set_curr_idx (idx);
}
}
playlist_t *curr_plt = plt_get_curr ();
if (plt_add_files_begin (curr_plt, 0) != 0) {
plt_unref (curr_plt);
snprintf (sendback, sbsize, "it's not allowed to add files to playlist right now, because another file adding operation is in progress. please try again later.");
return 1;
}
// add files
if (!queue) {
plt_clear (curr_plt);
messagepump_push (DB_EV_PLAYLISTCHANGED, 0, DDB_PLAYLIST_CHANGE_CONTENT, 0);
plt_reset_cursor (curr_plt);
}
while (parg < pend) {
char resolved[PATH_MAX];
const char *pname;
if (realpath (parg, resolved)) {
pname = resolved;
}
else {
pname = parg;
}
if (deadbeef->plt_add_dir2 (0, (ddb_playlist_t*)curr_plt, pname, NULL, NULL) < 0) {
if (deadbeef->plt_add_file2 (0, (ddb_playlist_t*)curr_plt, pname, NULL, NULL) < 0) {
int ab = 0;
playItem_t *after = plt_get_last (curr_plt, PL_MAIN);
playItem_t *it = plt_load2 (0, curr_plt, after, pname, &ab, NULL, NULL);
if (after) {
pl_item_unref (after);
}
if (!it) {
trace_err ("failed to add file or folder %s\n", pname);
}
}
}
parg += strlen (parg);
parg++;
}
pl_save_current ();
messagepump_push (DB_EV_PLAYLISTCHANGED, 0, DDB_PLAYLIST_CHANGE_CONTENT, 0);
plt_add_files_end (curr_plt, 0);
plt_unref (curr_plt);
if (!queue) {
messagepump_push (DB_EV_PLAY_NUM, 0, 0, 0);
}
return 0;
}
#if USE_ABSTRACT_SOCKET_NAME
static char server_id[] = "\0deadbeefplayer";
#endif
static unsigned srv_socket;
#ifdef USE_INET_SOCKET
static struct sockaddr_in srv_local;
static struct sockaddr_in srv_remote;
int db_socket_init_inet () {
#ifdef __MINGW32__
// initiate winsock
WSADATA wsaData;
if (WSAStartup(MAKEWORD(2,2), &wsaData) != 0) {
trace_err ("Error with WSAStartup(), WinSock startup failed.\n");
return -1;
}
else {
trace ("WinSock init ok, library version %d.%d\n", HIBYTE(wsaData.wVersion), LOBYTE(wsaData.wVersion));
}
#endif
return 0;
}
int db_socket_set_inet (struct sockaddr_in *remote, int *len) {
int s;
if ((s = socket(AF_INET, SOCK_STREAM, 0)) == -1) {
perror("socket");
exit(1);
}
memset (remote, 0, sizeof (*remote));
remote->sin_family = AF_INET;
remote->sin_addr.s_addr = inet_addr("127.0.0.1");
remote->sin_port = htons(DEFAULT_LISTENING_PORT);
*len = sizeof(*remote);
return s;
}
#else
static struct sockaddr_un srv_local;
static struct sockaddr_un srv_remote;
int db_socket_set_unix (struct sockaddr_un *remote, int *len) {
int s;
if ((s = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) {
perror("socket");
exit(1);
}
memset (remote, 0, sizeof (struct sockaddr_un));
remote->sun_family = AF_UNIX;
#if USE_ABSTRACT_SOCKET_NAME
memcpy (remote->sun_path, server_id, sizeof (server_id));
*len = offsetof(struct sockaddr_un, sun_path) + sizeof (server_id)-1;
#else
char *socketdirenv = getenv ("DDB_SOCKET_DIR");
snprintf (remote->sun_path, sizeof (remote->sun_path), "%s/socket", socketdirenv ? socketdirenv : dbruntimedir);
*len = offsetof(struct sockaddr_un, sun_path) + (int)strlen (remote->sun_path);
#endif
return s;
}
#endif
void db_socket_close (int s) {
#ifdef __MINGW32__
closesocket (s);
#else
close (s);
#endif
}
int
server_start (void) {
int len;
trace ("server_start\n");
#ifdef USE_INET_SOCKET
srv_socket = db_socket_set_inet (&srv_local, &len);
#ifdef __MINGW32__
unsigned long flags = 1;
if (ioctlsocket(srv_socket, FIONBIO, &flags) == SOCKET_ERROR) {
perror ("ioctlsocket FIONBIO");
return -1;
}
#endif
#else
srv_socket = db_socket_set_unix (&srv_local, &len);
#ifndef USE_ABSTRACT_SOCKET_NAME
if (unlink(srv_local.sun_path) < 0) {
perror ("INFO: unlink socket");
}
len = offsetof(struct sockaddr_un, sun_path) + (int)strlen (srv_local.sun_path);
#endif
int flags;
flags = fcntl (srv_socket, F_GETFL,0);
if (flags == -1) {
perror ("fcntl F_GETFL");
return -1;
}
if (fcntl(srv_socket, F_SETFL, flags | O_NONBLOCK) < 0) {
perror ("fcntl F_SETFL");
return -1;
}
#endif
if (len == -1) {
return -1;
}
if (bind(srv_socket, (struct sockaddr *)&srv_local, len) < 0) {
perror ("bind");
return -1;
}
if (listen(srv_socket, 5) == -1) {
perror("listen");
return -1;
}
return 0;
}
void
server_close (void) {
if (srv_socket) {
db_socket_close (srv_socket);
srv_socket = 0;
}
}
// Read the whole message till end-of-stream
char*
read_entire_message (int sockfd, int *size) {
int bufsize = 4096; // initial buffer size, will expand if
// the actual package turns out to be bigger
char *buf = (char*) malloc(bufsize);
int rdp = 0;
for (;;) {
if (rdp >= bufsize) {
int newsize = bufsize * 2;
char *newbuf = (char*) malloc(newsize);
memcpy(newbuf, buf, rdp);
free(buf);
buf = newbuf;
bufsize = newsize;
}
ssize_t rd = recv(sockfd, buf + rdp, bufsize - rdp, 0);
if (rd < 0) {
if (errno == EAGAIN) {
usleep (50000);
continue;
}
free(buf);
return NULL;
}
if (rd == 0) {
break;
}
rdp += rd;
}
*size = rdp;
return buf;
}
int
server_update (void) {
// handle remote stuff
int t = sizeof (srv_remote);
int s2;
s2 = accept(srv_socket, (struct sockaddr *)&srv_remote, &t);
if (s2 == -1 && errno != EAGAIN && errno != EWOULDBLOCK) {
perror("accept");
return -1;
}
else if (s2 != -1) {
int size = -1;
char *buf = read_entire_message(s2, &size);
char sendback[1024] = "";
if (size > 0) {
if (size == 1 && buf[0] == 0) {
// FIXME: that should be called right after activation of gui plugin
messagepump_push (DB_EV_ACTIVATED, 0, 0, 0);
}
else {
server_exec_command_line (buf, size, sendback, sizeof (sendback));
}
}
if (sendback[0]) {
// send nowplaying back to client
send (s2, sendback, strlen (sendback)+1, 0);
}
else {
send (s2, "", 1, 0);
}
db_socket_close(s2);
if (buf) {
free(buf);
}
}
return 0;
}
static uintptr_t server_tid;
static int server_terminate;
void
server_loop (void *ctx) {
#ifdef __linux__
prctl (PR_SET_NAME, "deadbeef-server", 0, 0, 0, 0);
#endif
fd_set rds;
int ret;
struct timeval timeout = {0, 0};
FD_ZERO(&rds);
while (!server_terminate) {
FD_SET(srv_socket, &rds);
timeout.tv_usec = 500000;
if ((ret = select(srv_socket + 1, &rds, NULL, NULL, &timeout)) < 0 && errno != EINTR) {
perror("select");
exit (-1);
}
if (ret > 0) {
if (server_update () < 0) {
messagepump_push (DB_EV_TERMINATE, 0, 0, 0);
}
}
}
}
void
save_resume_state (void) {
playItem_t *trk = streamer_get_playing_track ();
DB_output_t *output = plug_get_output ();
float playpos = -1;
int playtrack = -1;
int playlist = -1;
playlist_t *plt = pl_get_playlist (trk);
int paused = (output->state () == DDB_PLAYBACK_STATE_PAUSED);
if (trk && plt) {
playlist = plt_get_idx_of(plt);
playtrack = plt_get_item_idx(plt, trk, PL_MAIN);
playpos = streamer_get_playpos ();
pl_item_unref (trk);
}
if (plt) {
plt_unref (plt);
plt = NULL;
}
conf_set_float ("resume.position", playpos);
conf_set_int ("resume.track", playtrack);
conf_set_int ("resume.playlist", playlist);
conf_set_int ("resume.paused", paused);
}
void
player_mainloop (void) {
for (;;) {
uint32_t msg;
uintptr_t ctx;
uint32_t p1;
uint32_t p2;
int term = 0;
while (messagepump_pop(&msg, &ctx, &p1, &p2) != -1) {
// broadcast to all plugins
DB_plugin_t **plugs = plug_get_list ();
for (int n = 0; plugs[n]; n++) {
if (plugs[n]->message) {
plugs[n]->message (msg, ctx, p1, p2);
}
}
if (!term) {
DB_output_t *output = plug_get_output ();
switch (msg) {
case DB_EV_REINIT_SOUND:
plug_reinit_sound ();
conf_save ();
break;
case DB_EV_TERMINATE:
{
save_resume_state ();
playqueue_clear ();
term = 1;
}
break;
case DB_EV_PLAY_CURRENT:
streamer_play_current_track ();
break;
case DB_EV_PLAY_NUM:
playqueue_clear ();
streamer_set_nextsong (p1, 0);
break;
case DB_EV_STOP:
streamer_set_nextsong (-1, 0);
break;
case DB_EV_NEXT:
streamer_move_to_nextsong (1);
break;
case DB_EV_PREV:
streamer_move_to_prevsong (1);
break;
case DB_EV_PAUSE:
if (output->state () != DDB_PLAYBACK_STATE_PAUSED) {
output->pause ();
messagepump_push (DB_EV_PAUSED, 0, 1, 0);
}
break;
case DB_EV_TOGGLE_PAUSE:
if (output->state () != DDB_PLAYBACK_STATE_PLAYING) {
streamer_play_current_track ();
}
else {
output->pause ();
messagepump_push (DB_EV_PAUSED, 0, 1, 0);
}
break;
case DB_EV_PLAY_RANDOM:
streamer_move_to_randomsong (1);
break;
case DB_EV_CONFIGCHANGED:
conf_save ();
streamer_configchanged ();
pl_configchanged ();
junk_configchanged ();
break;
case DB_EV_SEEK:
{
int32_t pos = (int32_t)p1;
if (pos < 0) {
pos = 0;
}
streamer_set_seek (p1 / 1000.f);
}
break;
case DB_EV_PLAYLISTCHANGED:
switch (p1) {
case DDB_PLAYLIST_CHANGE_CONTENT:
case DDB_PLAYLIST_CHANGE_CREATED:
case DDB_PLAYLIST_CHANGE_DELETED:
streamer_notify_track_deleted ();
break;
}
case DB_EV_PAUSED:
case DB_EV_SONGFINISHED:
save_resume_state();
conf_save();
break;
}
}
if (msg >= DB_EV_FIRST && ctx) {
messagepump_event_free ((ddb_event_t *)ctx);
}
}
if (term) {
break;
}
messagepump_wait ();
}
}
#ifdef __GLIBC__
void
sigsegv_handler (int sig) {
trace_err ("Segmentation Fault\n");
int j, nptrs;
#define SIZE 100
void *buffer[100];
char **strings;
nptrs = backtrace(buffer, SIZE);
printf("backtrace() returned %d addresses\n", nptrs);
/* The call
* backtrace_symbols_fd(buffer,
* nptrs,
* STDOUT_FILENO)
would produce similar output to the following: */
strings = backtrace_symbols(buffer, nptrs);
if (strings == NULL) {
perror("backtrace_symbols");
exit(EXIT_FAILURE);
}
for (j = 0; j < nptrs; j++)
printf("%s\n", strings[j]);
free(strings);
exit (0);
}
#endif
void
restore_resume_state (void) {
DB_output_t *output = plug_get_output ();
if (conf_get_int ("resume_last_session", 1) && output->state () == DDB_PLAYBACK_STATE_STOPPED) {
int plt = conf_get_int ("resume.playlist", -1);
int track = conf_get_int ("resume.track", -1);
float pos = conf_get_float ("resume.position", -1);
int paused = conf_get_int ("resume.paused", 0);
trace ("resume: track %d pos %f playlist %d\n", track, pos, plt);
if (plt >= 0 && track >= 0 && pos >= 0) {
plt_set_curr_idx(plt);
streamer_set_current_playlist (plt);
if (!_previous_session_did_crash) {
streamer_yield ();
streamer_set_nextsong (track, paused);
streamer_yield ();
streamer_set_seek (pos);
}
}
}
}
uintptr_t mainloop_tid;
DB_plugin_t *
plug_get_gui (void) {
struct DB_plugin_s **plugs = plug_get_list ();
for (int i = 0; plugs[i]; i++) {
if (plugs[i]->type == DB_PLUGIN_GUI) {
return plugs[i];
}
}
return NULL;
}
#if !_DEBUG
static void
_touch(const char *path) {