[PATCH] poke: disable termios and sigaction code on Windows

[Hannes Domani]

2023-02-15  Hannes Domani  <ssbssa@yahoo.de>

        * poke/pk-repl.c: Disable sigaction code on Windows.
        * poke/pk-term.c: Disable termios code on Windows.
---
 poke/pk-repl.c | 10 ++++++++++
 poke/pk-term.c |  6 ++++++
 2 files changed, 16 insertions(+)

diff --git a/poke/pk-repl.c b/poke/pk-repl.c
index 4f4413ed..4cf20fe0 100644
--- a/poke/pk-repl.c
+++ b/poke/pk-repl.c
@@ -39,6 +39,7 @@
 #include "pk-utils.h"
 #include "pk-map.h"
 
+#if ! defined _WIN32 || defined __CYGWIN__
 /* The thread that contains the non-local entry point for reentering
    the REPL.  */
 static pthread_t volatile ctrlc_thread;
@@ -46,6 +47,7 @@ static pthread_t volatile ctrlc_thread;
 static sigjmp_buf /*volatile*/ ctrlc_buf;
 /* When nonzero, ctrlc_thread and ctrlc_buf contain valid values.  */
 static int volatile ctrlc_buf_valid;
+#endif
 
 /* This function is called repeatedly by the readline library, when
    generating potential command line completions.
@@ -210,6 +212,7 @@ banner (void)
 
 }
 
+#if ! defined _WIN32 || defined __CYGWIN__
 static _GL_ASYNC_SAFE void
 poke_sigint_handler (int sig)
 {
@@ -253,6 +256,7 @@ poke_sigint_handler (int sig)
       raise (SIGINT);
     }
 }
+#endif
 
 /* Return a copy of TEXT, with every instance of the space character
    prepended with the backslash character.   The caller is responsible
@@ -333,6 +337,7 @@ pk_repl (void)
   /* Let the inputrc parser know who we are.  */
   rl_readline_name = "gnupoke";
 
+#if ! defined _WIN32 || defined __CYGWIN__
   /* Arrange for the current line to be cancelled on SIGINT.
      Since some library code is also interested in SIGINT
      (GNU libtextstyle, via gnulib module fatal-signal), it is better
@@ -344,6 +349,7 @@ pk_repl (void)
   sa.sa_flags = 0;
   sigemptyset (&sa.sa_mask);
   sigaction (SIGINT, &sa, NULL);
+#endif
 
 #if defined HAVE_READLINE_HISTORY_H
   char *poke_history = NULL;
@@ -367,9 +373,11 @@ pk_repl (void)
   rl_filename_quote_characters = " ";
   rl_filename_quoting_function = escape_metacharacters;
 
+#if ! defined _WIN32 || defined __CYGWIN__
   ctrlc_thread = pthread_self ();
   sigsetjmp (ctrlc_buf, 1);
   ctrlc_buf_valid = 1;
+#endif
 
   while (!poke_exit_p)
     {
@@ -418,7 +426,9 @@ pk_repl (void)
   }
 #endif
 
+#if ! defined _WIN32 || defined __CYGWIN__
   ctrlc_buf_valid = 0;
+#endif
 }
 
 static int saved_point;
diff --git a/poke/pk-term.c b/poke/pk-term.c
index 71d33ac8..039cfa10 100644
--- a/poke/pk-term.c
+++ b/poke/pk-term.c
@@ -407,14 +407,17 @@ pk_puts_paged (const char *lines)
 
     if (nlines >= screen_lines)
       {
+#if ! defined _WIN32 || defined __CYGWIN__
         struct termios old_termios;
         struct termios new_termios;
+#endif
 
         styled_ostream_begin_use_class (pk_ostream, "pager-more");
         ostream_write_str (pk_ostream, "--More--");
         styled_ostream_end_use_class (pk_ostream, "pager-more");
         ostream_flush (pk_ostream, FLUSH_THIS_STREAM);
 
+#if ! defined _WIN32 || defined __CYGWIN__
         /* Set stdin in non-buffered mode.  */
         tcgetattr (0, &old_termios);
         memcpy (&new_termios, &old_termios, sizeof (struct termios));
@@ -422,6 +425,7 @@ pk_puts_paged (const char *lines)
         new_termios.c_cc[VTIME] = 0;
         new_termios.c_cc[VMIN] = 1;
         tcsetattr (0, TCSANOW, &new_termios);
+#endif
 
         /* Wait for a key and process it.  */
         while (1)
@@ -448,8 +452,10 @@ pk_puts_paged (const char *lines)
             fprintf (stderr, "\007");
           }
 
+#if ! defined _WIN32 || defined __CYGWIN__
         /* Restore stdin to buffered-mode.  */
         tcsetattr (0, TCSANOW, &old_termios);
+#endif
 
         if (erase_line_str)
           {
-- 
2.35.1