50 lines
1.7 KiB
C
50 lines
1.7 KiB
C
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/**
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* === DO NOT MODIFY THIS FILE ===
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* If you need some other prototypes or constants in a header, please put them
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* in another header file.
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*
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* When we grade, we will be replacing this file with our own copy.
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* You have been warned.
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* === DO NOT MODIFY THIS FILE ===
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*/
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#ifndef SERVER_H
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#define SERVER_H
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/*
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* Definitions of the commands that can be issued by a client.
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*/
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typedef enum tu_command {
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TU_PICKUP_CMD, TU_HANGUP_CMD, TU_DIAL_CMD, TU_CHAT_CMD,
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// Below are special values used in grading tests.
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TU_NO_CMD = 100, TU_CONNECT_CMD = 101, TU_DISCONNECT_CMD = 102,
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TU_AWAIT_CMD = 103, TU_DELAY_CMD = 104, TU_EOF_CMD = 105
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} TU_COMMAND;
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/*
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* Array that specifies a printable name for each of the commands that
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* can be issued to a TU by a client. These names should be used when
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* parsing commands received from a client. They may also be used for
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* debugging purposes.
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*/
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extern char *tu_command_names[];
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/*
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* Thread function for the thread that handles a particular client.
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*
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* @param Pointer to a variable that holds the file descriptor for
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* the client connection. This variable must be freed once the file
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* descriptor has been retrieved.
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* @return NULL
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*
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* This function executes a "service loop" that receives messages from
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* the client and dispatches to appropriate functions to carry out
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* the client's requests. The service loop ends when the network connection
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* shuts down and EOF is seen. This could occur either as a result of the
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* client explicitly closing the connection, a timeout in the network causing
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* the connection to be closed, or the main thread of the server shutting
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* down the connection as part of graceful termination.
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*/
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void *pbx_client_service(void *arg);
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#endif
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