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Annotation of 43BSDTahoe/new/jove/io.h, revision 1.1

1.1     ! root        1: /***************************************************************************
        !             2:  * This program is Copyright (C) 1986, 1987, 1988 by Jonathan Payne.  JOVE *
        !             3:  * is provided to you without charge, and with no warranty.  You may give  *
        !             4:  * away copies of JOVE, including sources, provided that this notice is    *
        !             5:  * included in all the files.                                              *
        !             6:  ***************************************************************************/
        !             7: 
        !             8: #define putchar(c)     putc(c, stdout)
        !             9: #define putc(c, fp)    (--(fp)->f_cnt >= 0 ? (*(fp)->f_ptr++ = (c)) : _flush((c), fp))
        !            10: #define getc(fp)       (((--(fp)->f_cnt < 0) ? filbuf(fp) : *(fp)->f_ptr++))
        !            11: 
        !            12: typedef struct File {
        !            13:        int     f_cnt,          /* number of characters left in buffer */
        !            14:                f_bufsize,      /* size of what f_base points to */
        !            15:                f_fd,           /* fildes */
        !            16:                f_flags;        /* various flags */
        !            17:        char    *f_ptr,         /* current offset */
        !            18:                *f_base;        /* pointer to base */
        !            19:        char    *f_name;        /* name of open file */
        !            20: } File;
        !            21: 
        !            22: #define F_READ         01
        !            23: #define F_WRITE                02
        !            24: #define F_APPEND       04
        !            25: #define F_MODE(x)      (x&07)
        !            26: #define F_EOF          010
        !            27: #define F_STRING       020
        !            28: #define F_ERR          040
        !            29: #define F_LOCKED       0100    /* don't close this file upon error */
        !            30: #define F_MYBUF                0200    /* f_alloc allocated the buffer, so
        !            31:                                   f_close knows to free it up */
        !            32: #define F_TELLALL      0400    /* whether to display info upon close */
        !            33: 
        !            34: extern long    io_chars;
        !            35: extern int     io_lines;
        !            36: 
        !            37: extern File
        !            38:        *stdout,
        !            39: 
        !            40:        *open_file(),
        !            41:        *fd_open(),
        !            42:        *f_open();
        !            43: 
        !            44: #ifdef VMUNIX
        !            45: #   define MAXTTYBUF   2048
        !            46: #else
        !            47: #   define MAXTTYBUF   512
        !            48: #endif

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