gcc/libf2c/libI77/close.c

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#include "f2c.h"
#include "fio.h"
#ifdef KR_headers
integer f_clos(a) cllist *a;
#else
#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
#ifdef __cplusplus
extern "C" int unlink(const char*);
#else
extern int unlink(const char*);
#endif
#endif
#endif
integer f_clos(cllist *a)
#endif
{ 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 (!a->csta)
if (b->uscrtch == 1)
goto Delete;
else
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:
if(b->ufnm) {
fclose(b->ufd);
unlink(b->ufnm); /*SYSDEP*/
free(b->ufnm);
}
}
b->ufd=NULL;
done:
b->uend=0;
b->ufnm=NULL;
return(0);
}
void
#ifdef KR_headers
f_exit()
#else
f_exit(void)
#endif
{ 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
#ifdef KR_headers
G77_flush_0 ()
#else
G77_flush_0 (void)
#endif
{ 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;
}