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authorEric Wong <normalperson@yhbt.net>2006-07-30 23:32:47 +0000
committerEric Wong <normalperson@yhbt.net>2006-07-30 23:32:47 +0000
commit12aec5738b8333a0dd676871bbfb6d6762ea87a5 (patch)
treeb2bb99e19e6a771f01bb465f38f4d878d6a9d805 /src/playlist.c
parent381d7232a0d63c0a145fae5e2c40e577ff2f44f1 (diff)
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Standardize state_file handling routines.
This way it's easier to manage and extend. git-svn-id: https://svn.musicpd.org/mpd/trunk@4494 09075e82-0dd4-0310-85a5-a0d7c8717e4f
Diffstat (limited to 'src/playlist.c')
-rw-r--r--src/playlist.c282
1 files changed, 103 insertions, 179 deletions
diff --git a/src/playlist.c b/src/playlist.c
index 64350d471..359e3ac24 100644
--- a/src/playlist.c
+++ b/src/playlist.c
@@ -27,6 +27,7 @@
#include "path.h"
#include "utils.h"
#include "sig_handlers.h"
+#include "state_file.h"
#include <string.h>
#include <stdlib.h>
@@ -92,16 +93,6 @@ static void swapOrder(int a, int b);
static int playPlaylistOrderNumber(int fd, int orderNum);
static void randomizeOrder(int start, int end);
-char *getStateFile(void)
-{
- ConfigParam *param = parseConfigFilePath(CONF_STATE_FILE, 0);
-
- if (!param)
- return NULL;
-
- return param->value;
-}
-
static void incrPlaylistVersion(void)
{
static unsigned long max = ((mpd_uint32) 1 << 31) - 1;
@@ -256,208 +247,141 @@ int showPlaylist(int fd)
return 0;
}
-void savePlaylistState(void)
+void savePlaylistState(FILE *fp)
{
- char *stateFile = getStateFile();
-
- if (stateFile) {
- FILE *fp;
-
- while (!(fp = fopen(stateFile, "w")) && errno == EINTR) ;
- if (!fp) {
- ERROR("problems opening state file \"%s\" for "
- "writing: %s\n", stateFile, strerror(errno));
- return;
- }
-
- fprintf(fp, "%s", PLAYLIST_STATE_FILE_STATE);
- switch (playlist_state) {
- case PLAYLIST_STATE_PLAY:
- switch (getPlayerState()) {
- case PLAYER_STATE_PAUSE:
- fprintf(fp, "%s\n",
- PLAYLIST_STATE_FILE_STATE_PAUSE);
- break;
- default:
- fprintf(fp, "%s\n",
- PLAYLIST_STATE_FILE_STATE_PLAY);
- }
- fprintf(fp, "%s%i\n", PLAYLIST_STATE_FILE_CURRENT,
- playlist.order[playlist.current]);
- fprintf(fp, "%s%i\n", PLAYLIST_STATE_FILE_TIME,
- getPlayerElapsedTime());
+ fprintf(fp, "%s", PLAYLIST_STATE_FILE_STATE);
+ switch (playlist_state) {
+ case PLAYLIST_STATE_PLAY:
+ switch (getPlayerState()) {
+ case PLAYER_STATE_PAUSE:
+ fprintf(fp, "%s\n", PLAYLIST_STATE_FILE_STATE_PAUSE);
break;
default:
- fprintf(fp, "%s\n", PLAYLIST_STATE_FILE_STATE_STOP);
- break;
+ fprintf(fp, "%s\n", PLAYLIST_STATE_FILE_STATE_PLAY);
}
- fprintf(fp, "%s%i\n", PLAYLIST_STATE_FILE_RANDOM,
- playlist.random);
- fprintf(fp, "%s%i\n", PLAYLIST_STATE_FILE_REPEAT,
- playlist.repeat);
- fprintf(fp, "%s%i\n", PLAYLIST_STATE_FILE_CROSSFADE,
- (int)(getPlayerCrossFade()));
- fprintf(fp, "%s\n", PLAYLIST_STATE_FILE_PLAYLIST_BEGIN);
- fflush(fp);
- showPlaylist(fileno(fp));
- fprintf(fp, "%s\n", PLAYLIST_STATE_FILE_PLAYLIST_END);
-
- while (fclose(fp) && errno == EINTR) ;
+ fprintf(fp, "%s%i\n", PLAYLIST_STATE_FILE_CURRENT,
+ playlist.order[playlist.current]);
+ fprintf(fp, "%s%i\n", PLAYLIST_STATE_FILE_TIME,
+ getPlayerElapsedTime());
+ break;
+ default:
+ fprintf(fp, "%s\n", PLAYLIST_STATE_FILE_STATE_STOP);
+ break;
}
+ fprintf(fp, "%s%i\n", PLAYLIST_STATE_FILE_RANDOM, playlist.random);
+ fprintf(fp, "%s%i\n", PLAYLIST_STATE_FILE_REPEAT, playlist.repeat);
+ fprintf(fp, "%s%i\n", PLAYLIST_STATE_FILE_CROSSFADE,
+ (int)(getPlayerCrossFade()));
+ fprintf(fp, "%s\n", PLAYLIST_STATE_FILE_PLAYLIST_BEGIN);
+ fflush(fp);
+ showPlaylist(fileno(fp));
+ fprintf(fp, "%s\n", PLAYLIST_STATE_FILE_PLAYLIST_END);
}
-void loadPlaylistFromStateFile(FILE *fp, char *buffer, int state, int current,
- int time)
+static void loadPlaylistFromStateFile(FILE *fp, char *buffer,
+ int state, int current, int time)
{
char *temp;
int song;
- char *stateFile = getStateFile();
- if (!myFgets(buffer, PLAYLIST_BUFFER_SIZE, fp)) {
- ERROR("error parsing state file \"%s\"\n", stateFile);
- exit(EXIT_FAILURE);
- }
+ if (!myFgets(buffer, PLAYLIST_BUFFER_SIZE, fp))
+ state_file_fatal();
while (strcmp(buffer, PLAYLIST_STATE_FILE_PLAYLIST_END)) {
song = atoi(strtok(buffer, ":"));
- if (!(temp = strtok(NULL, ""))) {
- ERROR("error parsing state file \"%s\"\n", stateFile);
- exit(EXIT_FAILURE);
- }
+ if (!(temp = strtok(NULL, "")))
+ state_file_fatal();
if (!addToPlaylist(STDERR_FILENO, temp, 0) && current == song) {
if (state != PLAYER_STATE_STOP) {
playPlaylist(STDERR_FILENO,
- playlist.length - 1, 0);
+ playlist.length - 1, 0);
}
if (state == PLAYER_STATE_PAUSE) {
playerPause(STDERR_FILENO);
}
if (state != PLAYER_STATE_STOP) {
seekSongInPlaylist(STDERR_FILENO,
- playlist.length - 1,
- time);
+ playlist.length - 1, time);
}
}
- if (!myFgets(buffer, PLAYLIST_BUFFER_SIZE, fp)) {
- ERROR("error parsing state file \"%s\"\n", stateFile);
- exit(EXIT_FAILURE);
- }
+ if (!myFgets(buffer, PLAYLIST_BUFFER_SIZE, fp))
+ state_file_fatal();
}
}
-void readPlaylistState(void)
+void readPlaylistState(FILE *fp)
{
- char *stateFile = getStateFile();
-
- if (stateFile) {
- FILE *fp;
- struct stat st;
- int current = -1;
- int time = 0;
- int state = PLAYER_STATE_STOP;
- char buffer[PLAYLIST_BUFFER_SIZE];
-
- if (stat(stateFile, &st) < 0) {
- DEBUG("failed to stat state file\n");
- return;
- }
- if (!S_ISREG(st.st_mode)) {
- ERROR("state file \"%s\" is not a regular "
- "file\n", stateFile);
- exit(EXIT_FAILURE);
- }
+ int current = -1;
+ int time = 0;
+ int state = PLAYER_STATE_STOP;
+ char buffer[PLAYLIST_BUFFER_SIZE];
- fp = fopen(stateFile, "r");
- if (!fp) {
- ERROR("problems opening state file \"%s\" for "
- "reading: %s\n", stateFile, strerror(errno));
- exit(EXIT_FAILURE);
- }
-
- while (myFgets(buffer, PLAYLIST_BUFFER_SIZE, fp)) {
- if (strncmp(buffer, PLAYLIST_STATE_FILE_STATE,
- strlen(PLAYLIST_STATE_FILE_STATE)) == 0) {
- if (strcmp(&(buffer
- [strlen
- (PLAYLIST_STATE_FILE_STATE)]),
- PLAYLIST_STATE_FILE_STATE_PLAY) ==
- 0) {
- state = PLAYER_STATE_PLAY;
- } else if (strcmp(&(buffer
- [strlen
- (PLAYLIST_STATE_FILE_STATE)]),
- PLAYLIST_STATE_FILE_STATE_PAUSE)
- == 0) {
- state = PLAYER_STATE_PAUSE;
- }
- } else if (strncmp(buffer, PLAYLIST_STATE_FILE_TIME,
- strlen(PLAYLIST_STATE_FILE_TIME)) ==
- 0) {
- time =
- atoi(&
- (buffer
- [strlen(PLAYLIST_STATE_FILE_TIME)]));
- } else
- if (strncmp
- (buffer, PLAYLIST_STATE_FILE_REPEAT,
- strlen(PLAYLIST_STATE_FILE_REPEAT)) == 0) {
- if (strcmp
- (&
- (buffer
- [strlen(PLAYLIST_STATE_FILE_REPEAT)]),
- "1") == 0) {
- setPlaylistRepeatStatus(STDERR_FILENO,
- 1);
- } else
- setPlaylistRepeatStatus(STDERR_FILENO,
- 0);
+ while (myFgets(buffer, PLAYLIST_BUFFER_SIZE, fp)) {
+ if (strncmp(buffer, PLAYLIST_STATE_FILE_STATE,
+ strlen(PLAYLIST_STATE_FILE_STATE)) == 0) {
+ if (strcmp(&(buffer[strlen(PLAYLIST_STATE_FILE_STATE)]),
+ PLAYLIST_STATE_FILE_STATE_PLAY) == 0) {
+ state = PLAYER_STATE_PLAY;
} else
- if (strncmp
- (buffer, PLAYLIST_STATE_FILE_CROSSFADE,
- strlen(PLAYLIST_STATE_FILE_CROSSFADE)) == 0) {
- setPlayerCrossFade(atoi
- (&
- (buffer
- [strlen
- (PLAYLIST_STATE_FILE_CROSSFADE)])));
+ if (strcmp
+ (&(buffer[strlen(PLAYLIST_STATE_FILE_STATE)]),
+ PLAYLIST_STATE_FILE_STATE_PAUSE)
+ == 0) {
+ state = PLAYER_STATE_PAUSE;
+ }
+ } else if (strncmp(buffer, PLAYLIST_STATE_FILE_TIME,
+ strlen(PLAYLIST_STATE_FILE_TIME)) == 0) {
+ time =
+ atoi(&(buffer[strlen(PLAYLIST_STATE_FILE_TIME)]));
+ } else
+ if (strncmp
+ (buffer, PLAYLIST_STATE_FILE_REPEAT,
+ strlen(PLAYLIST_STATE_FILE_REPEAT)) == 0) {
+ if (strcmp
+ (&(buffer[strlen(PLAYLIST_STATE_FILE_REPEAT)]),
+ "1") == 0) {
+ setPlaylistRepeatStatus(STDERR_FILENO, 1);
} else
- if (strncmp
- (buffer, PLAYLIST_STATE_FILE_RANDOM,
- strlen(PLAYLIST_STATE_FILE_RANDOM)) == 0) {
- if (strcmp
- (&
- (buffer
- [strlen(PLAYLIST_STATE_FILE_RANDOM)]),
- "1") == 0) {
- setPlaylistRandomStatus(STDERR_FILENO,
- 1);
- } else
- setPlaylistRandomStatus(STDERR_FILENO,
- 0);
- } else if (strncmp(buffer, PLAYLIST_STATE_FILE_CURRENT,
- strlen(PLAYLIST_STATE_FILE_CURRENT))
- == 0) {
- if (strlen(buffer) ==
- strlen(PLAYLIST_STATE_FILE_CURRENT)) {
- ERROR("error parsing state "
- "file \"%s\"\n", stateFile);
- exit(EXIT_FAILURE);
- }
- current = atoi(&(buffer
- [strlen
- (PLAYLIST_STATE_FILE_CURRENT)]));
+ setPlaylistRepeatStatus(STDERR_FILENO, 0);
+ } else
+ if (strncmp
+ (buffer, PLAYLIST_STATE_FILE_CROSSFADE,
+ strlen(PLAYLIST_STATE_FILE_CROSSFADE)) == 0) {
+ setPlayerCrossFade(atoi
+ (&
+ (buffer
+ [strlen
+ (PLAYLIST_STATE_FILE_CROSSFADE)])));
+ } else
+ if (strncmp
+ (buffer, PLAYLIST_STATE_FILE_RANDOM,
+ strlen(PLAYLIST_STATE_FILE_RANDOM)) == 0) {
+ if (strcmp
+ (&
+ (buffer
+ [strlen(PLAYLIST_STATE_FILE_RANDOM)]),
+ "1") == 0) {
+ setPlaylistRandomStatus(STDERR_FILENO, 1);
} else
- if (strncmp
- (buffer, PLAYLIST_STATE_FILE_PLAYLIST_BEGIN,
- strlen(PLAYLIST_STATE_FILE_PLAYLIST_BEGIN)
- ) == 0) {
- if (state == PLAYER_STATE_STOP)
- current = -1;
- loadPlaylistFromStateFile(fp, buffer, state,
- current, time);
- }
+ setPlaylistRandomStatus(STDERR_FILENO, 0);
+ } else if (strncmp(buffer, PLAYLIST_STATE_FILE_CURRENT,
+ strlen(PLAYLIST_STATE_FILE_CURRENT))
+ == 0) {
+ if (strlen(buffer) ==
+ strlen(PLAYLIST_STATE_FILE_CURRENT))
+ state_file_fatal();
+ current = atoi(&(buffer
+ [strlen
+ (PLAYLIST_STATE_FILE_CURRENT)]));
+ } else
+ if (strncmp
+ (buffer, PLAYLIST_STATE_FILE_PLAYLIST_BEGIN,
+ strlen(PLAYLIST_STATE_FILE_PLAYLIST_BEGIN)
+ ) == 0) {
+ if (state == PLAYER_STATE_STOP)
+ current = -1;
+ loadPlaylistFromStateFile(fp, buffer, state,
+ current, time);
}
-
- fclose(fp);
}
}