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Annotation of 43BSD/ingres/source/iutil/markopen.c, revision 1.1

1.1     ! root        1: # include      <useful.h>
        !             2: # include      <opsys.h>
        !             3: # include      <sccs.h>
        !             4: 
        !             5: SCCSID(@(#)markopen.c  8.2     1/6/85)
        !             6: 
        !             7: /*
        !             8: **  MARKOPEN -- mark all open files
        !             9: **
        !            10: **     Marked files will not be closed later.
        !            11: **
        !            12: **     Parameters:
        !            13: **             ovect -- pointer to bitmap of open files.
        !            14: **
        !            15: **     Returns:
        !            16: **             none
        !            17: **
        !            18: **     Side Effects:
        !            19: **             Sets *ovect to represent the open files.
        !            20: */
        !            21: 
        !            22: long   CmOfiles;       /* default set of files, used all over */
        !            23: 
        !            24: markopen(ovect)
        !            25: register long  *ovect;
        !            26: {
        !            27:        register int    i;
        !            28:        register int    j;
        !            29:        extern int      errno;
        !            30:        struct stat     sbuf;
        !            31: 
        !            32:        if (ovect == NULL)
        !            33:                ovect = &CmOfiles;
        !            34: 
        !            35:        *ovect = 0;
        !            36:        for (i = 0; i < NOFILE; i++)
        !            37:        {
        !            38:                if (fstat(i, &sbuf) >= 0)
        !            39:                        *ovect |= 1 << i;
        !            40:        }
        !            41:        errno = 0;
        !            42: }
        !            43: /*
        !            44: **  CLOSEALL -- close all open files (except marked files)
        !            45: **
        !            46: **     Parameters:
        !            47: **             tell -- if set, report files that are open and should
        !            48: **                     not have been.
        !            49: **             ovect -- vector of files to leave open.
        !            50: **
        !            51: **     Returns:
        !            52: **             none
        !            53: **
        !            54: **     Side Effects:
        !            55: **             none
        !            56: **
        !            57: **     Trace Flags:
        !            58: **             none
        !            59: */
        !            60: 
        !            61: closeall(tell, ovect)
        !            62: register int   tell;
        !            63: register long  ovect;
        !            64: {
        !            65:        register int    i;
        !            66: 
        !            67:        ovect |= CmOfiles;
        !            68: 
        !            69:        for (i = 0; i < NOFILE; i++)
        !            70:        {
        !            71:                if (!bitset(1 << i, ovect))
        !            72:                        if (close(i) >= 0 && tell)
        !            73:                                lprintf("File %d open\n", i);
        !            74:        }
        !            75: }
        !            76: 
        !            77: /*
        !            78: **     ADDMARKOPEN -- mark individial file descriptors as open
        !            79: **
        !            80: **     Marked descriptors will not be closed
        !            81: **
        !            82: **     Parameters:
        !            83: **             long    pvect   pointer to file descriptor vector
        !            84: **             int     fd      descriptor to mark
        !            85: **
        !            86: **     Returns:
        !            87: **             nothing
        !            88: **
        !            89: **     Side effects:
        !            90: **             none
        !            91: */
        !            92: 
        !            93: addmarkopen(pvect, fd)
        !            94: register long  *pvect;
        !            95: int            fd;
        !            96: {
        !            97:        *pvect |= 1 << fd;
        !            98: }

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