Predavani pointeru se signalem

[mirrors/Programs.git] / c / vizionix / mkxsock.c

diff --git a/c/vizionix/mkxsock.c b/c/vizionix/mkxsock.c
index afc9bebe17e519c09fe9cd69d12d2406a401cc26..cf7075f89270475cfac585c186bd6b3b97dde6fb 100644 (file)
--- a/c/vizionix/mkxsock.c
+++ b/c/vizionix/mkxsock.c
@@ -3,6 +3,15 @@
 #include <getopt.h>
 #include <gtk/gtk.h>
 
+#define ENV_PREFIX "XSOCK_"
+
+int return_true(GtkWidget *widget, gpointer data) { return 1; }
+
+int switch_sockets(GtkWidget *widget, gpointer data) {
+       fprintf(stderr,"SWITCH: %d\n", (int)data);
+       return 1;
+}
+
 void print_help(char ** argv) {
        printf(
                "Usage: %s [args]\n"
@@ -10,6 +19,7 @@ void print_help(char ** argv) {
                "\t -c color\n"
                "\t -w width\n"
                "\t -h height\n"
+               //"\t -r reuse " ENV_PREFIX "* from environment\n"
                "\t -? (display help)"
                "\nExample: %s -c black -w 640 -h 480\n\n",
                argv[0], argv[0]);
@@ -33,6 +43,15 @@ gint main(gint argc, gchar ** argv)
                        case 'h':
                                height = atoi(optarg);
                                break;
+                       case 'r': //Not yet
+                               if(getenv(ENV_PREFIX"PID")
+                                       && getenv(ENV_PREFIX"WID")
+                                       && kill(atoi(getenv(ENV_PREFIX"PID")), 0)
+                               ) {
+                                       puts("REUSABLE");
+                                       return 0;
+                               }
+                               break;
                        case '?':
                                print_help(argv);
                                return 0;
@@ -50,19 +69,21 @@ gint main(gint argc, gchar ** argv)
 
        //Create window
        GtkWidget *win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
-       GtkWidget *sock = gtk_socket_new();
-       g_signal_connect(sock, "plug-removed", gtk_main_quit, NULL);
+       GtkWidget *sock[1];
+       sock[0] = gtk_socket_new();
+       g_signal_connect(sock[0], "plug-added", G_CALLBACK(switch_sockets), (gpointer)23);
+       g_signal_connect(sock[0], "plug-removed", G_CALLBACK(return_true), NULL);
        g_signal_connect(win, "delete-event", gtk_main_quit, NULL);
-       gtk_widget_set_size_request(sock, width, height);
-       gtk_widget_modify_bg(sock, GTK_STATE_NORMAL, &color);
-       gtk_container_add(GTK_CONTAINER(win), sock);
+       gtk_widget_set_size_request(sock[0], width, height);
+       gtk_widget_modify_bg(sock[0], GTK_STATE_NORMAL, &color);
+       gtk_container_add(GTK_CONTAINER(win), sock[0]);
        gtk_widget_show_all(win);
 
        //Print id
-       GdkNativeWindow wid = gtk_socket_get_id(GTK_SOCKET(sock));
+       GdkNativeWindow wid = gtk_socket_get_id(GTK_SOCKET(sock[0]));
        int pid;
        if ((pid = fork())) {
-               printf("XSOCK_WID=%d\nXSOCK_PID=%d\n", wid, pid);
+               printf(ENV_PREFIX"WID=%d\n"ENV_PREFIX"PID=%d\n", wid, pid);
                return 0;
        }
        fclose(stdout);