gcc/libf2c/libI77/close.c

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#include "config.h"
#include "f2c.h"
#include "fio.h"
#undef abs
#undef min
#undef max
#include <stdlib.h>
#ifdef NON_UNIX_STDIO
#ifndef unlink
#define unlink remove
#endif
#else
#if defined (MSDOS) && !defined (GO32)
#include "io.h"
#else
extern int unlink (const char *);
#endif
#endif
integer
f_clos (cllist * a)
{
unit *b;
if (f__init & 2)
f__fatal (131, "I/O recursion");
if (a->cunit >= MXUNIT)
return (0);
b = &f__units[a->cunit];
if (b->ufd == NULL)
goto done;
if (b->uscrtch == 1)
goto Delete;
if (!a->csta)
goto Keep;
switch (*a->csta)
{
default:
Keep:
case 'k':
case 'K':
if (b->uwrt == 1)
t_runc ((alist *) a);
if (b->ufnm)
{
fclose (b->ufd);
free (b->ufnm);
}
break;
case 'd':
case 'D':
Delete:
fclose (b->ufd);
if (b->ufnm)
{
unlink (b->ufnm);
/*SYSDEP*/ free (b->ufnm);
}
}
b->ufd = NULL;
done:
b->uend = 0;
b->ufnm = NULL;
return (0);
}
void
f_exit (void)
{
int i;
static cllist xx;
if (!(f__init & 1))
return; /* Not initialized, so no open units. */
/* I/O no longer in progress. If, during an I/O operation (such
as waiting for the user to enter a line), there is an
interrupt (such as ^C to stop the program on a UNIX system),
f_exit() is called, but there is no longer any I/O in
progress. Without turning off this flag, f_clos() would
think that there is an I/O recursion in this circumstance. */
f__init &= ~2;
if (!xx.cerr)
{
xx.cerr = 1;
xx.csta = NULL;
for (i = 0; i < MXUNIT; i++)
{
xx.cunit = i;
(void) f_clos (&xx);
}
}
}
int
G77_flush_0 (void)
{
int i;
for (i = 0; i < MXUNIT; i++)
if (f__units[i].ufd != NULL && f__units[i].uwrt)
fflush (f__units[i].ufd);
return 0;
}