libf2c/libF77/s_paus.c

   1 #include <stdio.h>
   2 #include "f2c.h"
   3 #define PAUSESIG 15
   4
   5 #ifdef KR_headers
   6 #define Void /* void */
   7 #define Int /* int */
   8 #else
   9 #define Void void
  10 #define Int int
  11 #undef abs
  12 #undef min
  13 #undef max
  14 #include <stdlib.h>
  15 #include "signal1.h"
  16 #ifdef __cplusplus
  17 extern "C" {
  18 #endif
  19 extern int getpid(void), isatty(int), pause(void);
  20 #endif
  21
  22 extern VOID f_exit(Void);
  23
  24  static VOID
  25 waitpause(Int n)
  26 {       n = n; /* shut up compiler warning */
  27         return;
  28         }
  29
  30  static VOID
  31 #ifdef KR_headers
  32 s_1paus(fin) FILE *fin;
  33 #else
  34 s_1paus(FILE *fin)
  35 #endif
  36 {
  37         fprintf(stderr,
  38         "To resume execution, type go.  Other input will terminate the job.\n");
  39         fflush(stderr);
  40         if( getc(fin)!='g' || getc(fin)!='o' || getc(fin)!='\n' ) {
  41                 fprintf(stderr, "STOP\n");
  42 #ifdef NO_ONEXIT
  43                 f_exit();
  44 #endif
  45                 exit(0);
  46                 }
  47         }
  48
  49  int
  50 #ifdef KR_headers
  51 s_paus(s, n) char *s; ftnlen n;
  52 #else
  53 s_paus(char *s, ftnlen n)
  54 #endif
  55 {
  56         fprintf(stderr, "PAUSE ");
  57         if(n > 0)
  58                 fprintf(stderr, " %.*s", (int)n, s);
  59         fprintf(stderr, " statement executed\n");
  60         if( isatty(fileno(stdin)) )
  61                 s_1paus(stdin);
  62         else {
  63 #if (defined (MSDOS) && !defined (GO32)) || defined (_WIN32)
  64                 FILE *fin;
  65                 fin = fopen("con", "r");
  66                 if (!fin) {
  67                         fprintf(stderr, "s_paus: can't open con!\n");
  68                         fflush(stderr);
  69                         exit(1);
  70                         }
  71                 s_1paus(fin);
  72                 fclose(fin);
  73 #else
  74                 fprintf(stderr,
  75                 "To resume execution, execute a   kill -%d %d   command\n",
  76                         PAUSESIG, getpid() );
  77                 signal1(PAUSESIG, waitpause);
  78                 fflush(stderr);
  79                 pause();
  80 #endif
  81                 }
  82         fprintf(stderr, "Execution resumes after PAUSE.\n");
  83         fflush(stderr);
  84         return 0; /* NOT REACHED */
  85 #ifdef __cplusplus
  86         }
  87 #endif
  88 }