Attachment 117339 Details for Bug 91448 – xcb test code

xcb test code

main.cpp (text/plain), 1.83 KB, created by Gatis Paeglis on 2015-07-24 10:22:35 UTC

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Creator: Gatis Paeglis

Created: 2015-07-24 10:22:35 UTC

Size: 1.83 KB

patch

obsolete

>// need to link with -lX11 -lX11-xcb -lxcb -lxcb-glx
>
>#include <stdlib.h>
>#include <unistd.h>
>#include <iostream>
>#include <string>
>#include <stdio.h>
>#include <time.h>
>
>#include <xcb/xcb.h>
>#include <xcb/xproto.h>
>#include <X11/Xlib.h>
>#include <X11/Xlib-xcb.h>
>
>#include <xcb/glx.h>
>
>const std::string currentDateTime() {
>    time_t now = time(0);
>    struct tm tstruct;
>    char buf[80];
>    tstruct = *localtime(&now);
>    strftime(buf, sizeof(buf), "%X", &tstruct);
>    return buf;
>}
>
>bool initGLX(xcb_connection_t *conn)
>{
>    const xcb_query_extension_reply_t *reply = xcb_get_extension_data(conn, &xcb_glx_id);
>    if (!reply || !reply->present)
>        return false;
>
>    xcb_generic_error_t *error = 0;
>    xcb_glx_query_version_cookie_t xglx_query_cookie = xcb_glx_query_version(conn, XCB_GLX_MAJOR_VERSION, XCB_GLX_MINOR_VERSION);
>    xcb_glx_query_version_reply_t *xglx_query = xcb_glx_query_version_reply(conn, xglx_query_cookie, &error);
>    if (!xglx_query || error) {
>        free(error);
>        return false;
>    }
>    free(xglx_query);
>}
>
>// ture OR false, does not work for both cases
>bool useXlib = false;
>
>int main() {
>
>    xcb_connection_t *conn;
>
>    if (useXlib) {
>        Display *dpy = XOpenDisplay(getenv("DISPLAY"));
>        if (dpy) {
>            conn = XGetXCBConnection(dpy);
>            XSetEventQueueOwner(dpy, XCBOwnsEventQueue);
>        }
>    } else {
>        conn = xcb_connect(NULL, NULL);
>    }
>
>    xcb_flush(conn);
>
>    // ENABLE THIS LINE TO SEE HOW focus_reply WILL BLOCK THIS THREAD WHILE USERS HAS SWITCHED TO VIRTUAL CONSOLE
>    //initGLX(conn);
>
>    while(true) {
>
>        std::cout << "syncX: " << currentDateTime() << std::endl;
>        xcb_get_input_focus_cookie_t cookie = xcb_get_input_focus(conn);
>        free(xcb_get_input_focus_reply(conn, cookie, 0));
>
>        xcb_flush(conn);
>        sleep(1);
>    }
>
>    return 0;
>}

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