rflclose.c File Reference

#include <xinu.h>

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Functions
devcall	rflclose (struct dentry *devptr)

Function Documentation

rflclose()

devcall rflclose

(

struct dentry *

devptr

)

Definition at line 9 of file rflclose.c.

References dentry::dvminor, OK, Rf_data, RF_FREE, rfdata::rf_mutex, rfltab, rflcblk::rfstate, signal(), SYSERR, and wait().

{
    struct  rflcblk *rfptr;     /* Pointer to control block */

    /* Wait for exclusive access */

    wait(Rf_data.rf_mutex);

    /* Verify remote file device is open */

    rfptr = &rfltab[devptr->dvminor];
    if (rfptr->rfstate == RF_FREE) {
        signal(Rf_data.rf_mutex);
        return SYSERR;
    }

    /* Mark device closed */

    rfptr->rfstate = RF_FREE;
    signal(Rf_data.rf_mutex);
    return OK;
}

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