42 lines
913 B
C
42 lines
913 B
C
#define MESSAGE_LENGTH 256
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#define COMMAND_LENGTH 16
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#define HEARTBEAT_INTERVAL 3 // in seconds
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#define HEARTBEAT_TIMEOUT 10
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typedef enum {
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Message = 1,
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Login,
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Logout,
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Hearbeat,
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List,
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JoinGroup,
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LeaveGroup,
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Mute,
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Unmute,
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Signal,
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Inbox
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} Command_t;
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typedef enum {
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ACK_ACCEPTED = 0,
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ACK_DELIVERED,
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ERR_UNKNOWN_COMMAND,
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ERR_NOT_LOGGED_IN,
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ERR_ALREADY_LOGGED_IN,
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ERR_ALREADY_IN_GROUP,
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ERR_USER_NOT_FOUND,
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ERR_USER_MUTED,
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ERR_INVALID_FORMAT
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} Signal_t;
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typedef struct {
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Command_t mtype;
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Signal_t stype; // Used with mtype = signal. Responses from the server - to
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// specify errors or acks
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char sender[COMMAND_LENGTH]; // Who sent the message
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char command[COMMAND_LENGTH]; // Functions as an attribute to mtype -
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// nicknames, id to send/mute to
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char message[MESSAGE_LENGTH]; // Actual message content
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} msgbuf_t;
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