ack/lang/fortran/lib/libF77/s_paus.c

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1991-10-07 16:59:33 +00:00
#include "stdio.h"
#include "f2c.h"
#define PAUSESIG 15
static waitpause()
{
return;
}
VOID s_paus(s, n)
char *s;
long int n;
{
int i;
fprintf(stderr, "PAUSE ");
if(n > 0)
for(i = 0; i<n ; ++i)
putc(*s++, stderr);
fprintf(stderr, " statement executed\n");
if( isatty(fileno(stdin)) )
{
fprintf(stderr, "To resume execution, type go. Any other input will terminate job.\n");
fflush(stderr);
if( getchar()!='g' || getchar()!='o' || getchar()!='\n' )
{
fprintf(stderr, "STOP\n");
f_exit();
exit(0);
}
}
else
{
fprintf(stderr, "To resume execution, execute a kill -%d %d command\n",
PAUSESIG, getpid() );
signal(PAUSESIG, waitpause);
fflush(stderr);
pause();
}
fprintf(stderr, "Execution resumes after PAUSE.\n");
}