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Annotation of 42BSD/usr.lib/libpc/PFCLOSE.c, revision 1.1

1.1     ! root        1: /* Copyright (c) 1982 Regents of the University of California */
        !             2: 
        !             3: static char sccsid[] = "@(#)PFCLOSE.c  1.3     (Berkeley)      1/21/83";
        !             4: 
        !             5: /*
        !             6:  * Close a Pascal file deallocating resources as appropriate.
        !             7:  */
        !             8: 
        !             9: #include "h00vars.h"
        !            10: #include "libpc.h"
        !            11: 
        !            12: struct iorec *
        !            13: PFCLOSE(filep, lastuse)
        !            14:        register struct iorec *filep;
        !            15:        bool lastuse;
        !            16: {
        !            17:        if ((filep->funit & FDEF) == 0 && filep->fbuf != NULL) {
        !            18:                /*
        !            19:                 * Have a previous buffer, close associated file.
        !            20:                 */
        !            21:                if (filep->fblk > PREDEF) {
        !            22:                        fflush(filep->fbuf);
        !            23:                        setbuf(filep->fbuf, NULL);
        !            24:                }
        !            25:                fclose(filep->fbuf);
        !            26:                if (ferror(filep->fbuf)) {
        !            27:                        ERROR("%s: Close failed\n", filep->pfname);
        !            28:                        return;
        !            29:                }
        !            30:                /*
        !            31:                 * Temporary files are discarded.
        !            32:                 */
        !            33:                if ((filep->funit & TEMP) != 0 && lastuse &&
        !            34:                    unlink(filep->pfname)) {
        !            35:                        PERROR("Could not remove ", filep->pfname);
        !            36:                        return;
        !            37:                }
        !            38:        }
        !            39:        _actfile[filep->fblk] = FILNIL;
        !            40:        return (filep->fchain);
        !            41: }

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