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protocol.h
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protocol.h
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#ifndef PROTOCOL_H
#define PROTOCOL_H
/* Definition of events send by server to the client */
#define EV_STATE 0x01 /* server has changed the state */
#define EV_CTIME 0x02 /* current time of the song has changed */
#define EV_ERROR 0x04 /* an error occured */
#define EV_BUSY 0x05 /* another client is connected to the server */
#define EV_DATA 0x06 /* data in response to a request will arrive */
#define EV_BITRATE 0x07 /* the bitrate has changed */
#define EV_RATE 0x08 /* the rate has changed */
#define EV_CHANNELS 0x09 /* the number of channels has changed */
#define EV_EXIT 0x0a /* the server is about to exit */
#define EV_PONG 0x0b /* response for CMD_PING */
#define EV_OPTIONS 0x0c /* the options has changed */
#define EV_SEND_PLIST 0x0d /* Request for sending the playlist. */
/* Events caused by a client that wants to modify the playlist (see
* CMD_CLI_PLIST* commands. */
#define EV_PLIST_ADD 0x0e /* add an item, followed by the file name */
#define EV_PLIST_DEL 0x0f /* delete an item, followed by the file name */
#define EV_PLIST_CLEAR 0x10 /* clear the playlist */
/* State of the server. */
#define STATE_PLAY 0x01
#define STATE_STOP 0x02
#define STATE_PAUSE 0x03
/* Definition of server commands */
#define CMD_PLAY 0x00 /* play the first element on the list */
#define CMD_LIST_CLEAR 0x01 /* clear the list */
#define CMD_LIST_ADD 0x02 /* add an item to the list */
#define CMD_STOP 0x04 /* stop playing */
#define CMD_PAUSE 0x05 /* pause */
#define CMD_UNPAUSE 0x06 /* unpause */
#define CMD_SET_OPTION 0x07 /* set an option */
#define CMD_GET_OPTION 0x08 /* get an option */
#define CMD_GET_CTIME 0x0d /* get the current song time */
#define CMD_GET_SNAME 0x0f /* get the stream file name */
#define CMD_NEXT 0x10 /* start playing next song if available */
#define CMD_QUIT 0x11 /* shutdown the server */
#define CMD_SEEK 0x12 /* seek in the current stream */
#define CMD_GET_STATE 0x13 /* get the state */
#define CMD_DISCONNECT 0x15 /* disconnect from the server */
#define CMD_GET_BITRATE 0x16 /* get the bitrate */
#define CMD_GET_RATE 0x17 /* get the rate */
#define CMD_GET_CHANNELS 0x18 /* get the number of channels */
#define CMD_PING 0x19 /* request for EV_PONG */
#define CMD_GET_MIXER 0x1a /* get the volume level */
#define CMD_SET_MIXER 0x1b /* set the volume level */
#define CMD_DELETE 0x1c /* delete an item from the playlist */
#define CMD_SEND_EVENTS 0x1d /* request for events */
#define CMD_GET_ERROR 0x1e /* get the error message */
#define CMD_GET_FTIME 0x1f /* get time of a file from the server */
#define CMD_PREV 0x20 /* start playing previous song if available */
#define CMD_SEND_PLIST 0x21 /* send the playlist to the requesting client */
#define CMD_GET_PLIST 0x22 /* get the playlist from one of the clients */
#define CMD_CAN_SEND_PLIST 0x23 /* mark the client as able to to send
playlist */
#define CMD_CLI_PLIST_ADD 0x24 /* add an item to the clients playlist */
#define CMD_CLI_PLIST_DEL 0x25 /* delete an item from the clients
playlist */
#define CMD_CLI_PLIST_CLEAR 0x26 /* clear the clients playlist */
char *socket_name ();
int get_int (int sock, int *i);
int send_int (int sock, int i);
char *get_str (int sock);
int send_str (int sock, const char *str);
int get_time (int sock, time_t *i);
int send_time (int sock, time_t i);
#endif