From 12aec5738b8333a0dd676871bbfb6d6762ea87a5 Mon Sep 17 00:00:00 2001 From: Eric Wong Date: Sun, 30 Jul 2006 23:32:47 +0000 Subject: 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 --- src/playlist.c | 282 +++++++++++++++++++++------------------------------------ 1 file changed, 103 insertions(+), 179 deletions(-) (limited to 'src/playlist.c') 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 #include @@ -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); } } -- cgit v1.2.3