rfsinit.c File Reference

リモートファイルシステムマスターデバイスを初期化する。 More...

#include <xinu.h>

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Functions
devcall	rfsinit (struct dentry *devptr)

Variables
struct rfdata	Rf_data

Detailed Description

リモートファイルシステムマスターデバイスを初期化する。

Definition in file rfsinit.c.

Function Documentation

rfsinit()

devcall rfsinit

(

struct dentry *

devptr

)

Definition at line 16 of file rfsinit.c.

References dot2ip(), FALSE, OK, panic(), Rf_data, RF_LOC_PORT, rfdata::rf_loc_port, rfdata::rf_mutex, rfdata::rf_registered, rfdata::rf_seq, rfdata::rf_ser_ip, rfdata::rf_ser_port, RF_SERVER_IP, RF_SERVER_PORT, semcreate(), and SYSERR.

{

    /* Choose an initial message sequence number */

    Rf_data.rf_seq = 1;

    /* Set the server IP address, server port, and local port */

    if (dot2ip(RF_SERVER_IP, &Rf_data.rf_ser_ip) == SYSERR)
    {
        panic("invalid IP address for remote file server");
    }
    Rf_data.rf_ser_port = RF_SERVER_PORT;
    Rf_data.rf_loc_port = RF_LOC_PORT;

    /* Create a mutual exclusion semaphore */

    if ((Rf_data.rf_mutex = semcreate(1)) == SYSERR)
    {
        panic("Cannot create remote file system semaphore");
    }

    /* Specify that the server port is not yet registered */

    Rf_data.rf_registered = FALSE;

    return OK;
}

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Variable Documentation

Rf_data

struct rfdata Rf_data

Definition at line 10 of file rfsinit.c.

Referenced by rflclose(), rflread(), rflseek(), rflwrite(), rfscomm(), rfscontrol(), rfsinit(), and rfsopen().