#include "schilyio.h"
#include <schily/stdlib.h>

Include dependency graph for flag.c:

Macros
#define	FL_INIT 10

Functions
LOCAL int _more_flags	__PR ((FILE *))

LOCAL int	_more_flags (FILE *fp)

EXPORT int	_io_get_my_flag (FILE *fp)

EXPORT void	_io_set_my_flag (FILE *fp, int flag)

EXPORT void	_io_add_my_flag (FILE *fp, int flag)

Variables
EXPORT int	_io_glflag

LOCAL int	_fl_inc = 10

EXPORT int	_fl_max = FL_INIT

LOCAL _io_fl	_io_smyfl [FL_INIT]

EXPORT _io_fl *	_io_myfl = _io_smyfl

Macro Definition Documentation

◆ FL_INIT

#define FL_INIT 10

Definition at line 22 of file flag.c.

Function Documentation

◆ __PR()

LOCAL int _more_flags __PR ( (FILE *) )

◆ _io_add_my_flag()

EXPORT void _io_add_my_flag	(	FILE *	fp,
		int	flag
	)

Definition at line 124 of file flag.c.

{
    int oflag = _io_get_my_flag(fp);
 
    oflag |= flag;
 
    _io_set_my_flag(fp, oflag);
}

◆ _io_get_my_flag()

EXPORT int _io_get_my_flag ( FILE * fp )

Definition at line 70 of file flag.c.

{
    register int    f = fileno(fp);
    register _io_fl *fl;
 
    if (f >= _fl_max)
        return (_more_flags(fp));
 
    fl = &_io_myfl[f];
 
    if (fl->fl_io == 0 || fl->fl_io == fp)
        return (fl->fl_flags);
 
    while (fl && fl->fl_io != fp)
        fl = fl->fl_next;
 
    if (fl == 0)
        return (0);
 
    return (fl->fl_flags);
}

Referenced by _io_add_my_flag(), and _more_flags().

◆ _io_set_my_flag()

EXPORT void _io_set_my_flag	(	FILE *	fp,
		int	flag
	)

Definition at line 94 of file flag.c.

{
    register int    f = fileno(fp);
    register _io_fl *fl;
    register _io_fl *fl2;
 
    if (f >= _fl_max)
        (void) _more_flags(fp);
 
    fl = &_io_myfl[f];
 
    if (fl->fl_io != (FILE *)0) {
        fl2 = fl;
 
        while (fl && fl->fl_io != fp)
            fl = fl->fl_next;
        if (fl == 0) {
            if ((fl = (_io_fl *) malloc(sizeof (*fl))) == 0)
                return;
            fl->fl_next = fl2->fl_next;
            fl2->fl_next = fl;
        }
    }
    fl->fl_io = fp;
    fl->fl_flags = flag;
}

Referenced by _io_add_my_flag().

◆ _more_flags()

LOCAL int _more_flags ( FILE * fp )

Definition at line 41 of file flag.c.

{
    register int    f = fileno(fp);
    register int    n = _fl_max;
    register _io_fl *np;
 
    while (n <= f)
        n += _fl_inc;
 
    if (_io_myfl == _io_smyfl) {
        np = (_io_fl *) malloc(n * sizeof (*np));
        fillbytes(np, n * sizeof (*np), '\0');
        movebytes(_io_smyfl, np, sizeof (_io_smyfl)/sizeof (*np));
    } else {
        np = (_io_fl *) realloc(_io_myfl, n * sizeof (*np));
        if (np)
            fillbytes(&np[_fl_max], (n-_fl_max)*sizeof (*np), '\0');
    }
    if (np) {
        _io_myfl = np;
        _fl_max = n;
        return (_io_get_my_flag(fp));
    } else {
        return (_JS_IONORAISE);
    }
}