version 1.4.30b

[polyglot.git] / gui.c

diff --git a/gui.c b/gui.c
new file mode 100644 (file)
index 0000000..9dbe6f5
--- /dev/null
+++ b/gui.c
@@ -0,0 +1,104 @@
+// gui.c
+
+// includes
+
+#include <stdarg.h>
+#include <signal.h>
+
+#include "gui.h"
+#include "main.h"
+
+// constants
+
+static const int StringSize = 4096;
+
+// variables
+
+gui_t GUI[1];
+
+// functions
+
+// sig_int()
+
+static void sig_int(int dummy){
+    my_log("POLYGLOT *** SIGINT Received ***\n");
+    quit();
+}
+
+// sig_pipe()
+
+static void sig_pipe(int dummy){
+    my_log("POLYGLOT *** SIGPIPE Received ***\n");
+    quit();
+}
+
+// sig_term()
+
+static void sig_term(int dummy){
+    my_log("POLYGLOT *** SIGTERM Received ***\n");
+    quit();
+}
+
+
+// gui_init()
+
+void gui_init(gui_t *gui){
+
+// the following is nice if the "GUI" is a console!
+    signal(SIGINT,sig_int);
+#ifdef SIGTERM
+    signal(SIGTERM,sig_term);
+#endif 
+#ifdef SIGPIPE
+    signal(SIGPIPE,sig_pipe);
+#endif
+    pipex_open(gui->pipex,"GUI",NULL);
+}
+
+
+// gui_get_non_blocking()
+
+bool gui_get_non_blocking(gui_t * gui, char *string) {
+
+   ASSERT(gui!=NULL);
+   ASSERT(string!=NULL);
+
+   if(pipex_eof(gui->pipex)){
+        quit();
+        return TRUE; // we never get here
+   }
+   return pipex_readln_nb(gui->pipex,string);
+}
+
+// gui_get()
+
+void gui_get(gui_t * gui, char *string) {
+    if(pipex_eof(gui->pipex)){
+        quit();
+    }
+    pipex_readln(gui->pipex,string);
+}
+
+
+// gui_send()
+
+void gui_send(gui_t * gui, const char format[], ...) {
+
+   va_list arg_list;
+   char string[StringSize];
+
+   ASSERT(gui!=NULL);
+   ASSERT(format!=NULL);
+
+   // format
+
+   va_start(arg_list,format);
+   vsprintf(string,format,arg_list);
+   va_end(arg_list);
+
+   // send
+
+   pipex_writeln(gui->pipex,string);
+
+}
+