CynicRus
March 17th, 2012, 11:08 AM
There was a poser, which consists of the following: pthread create in a separate window, it displays some dynamic data. From the main thread - calling methods:
int blockDisplay (Display **dsp,Window *wnd1)
{
XSetWindowAttributes attr,attr1,attr2;
Pixmap shape,pic,lock,shp, bg_pic, bg_shp;
unsigned long white;
int snumber = 0;
long win_mask = CWBackPixel|CWBorderPixel|CWOverrideRedirect;
if(running == 1)
return 0;
running = 1;
x=5;
y=35;
XInitThreads();
(*dsp) = XOpenDisplay(0);
if((*dsp) == NULL)
return(-1);
//dsp = XOpenDisplay(getenv("DISPLAY"));
dW = XDisplayWidth(*dsp,snumber);
dH = XDisplayHeight(*dsp,snumber);
root = XRootWindow(*dsp,snumber);
if(background != NULL)
{
if(XpmReadFileToPixmap(*dsp,root,background,&bg_pic,&bg_shp,NULL) != XpmOpenFailed)
win_mask = CWBackPixmap|CWBorderPixel|CWOverrideRedirect;
}
white = XWhitePixel(*dsp,0);
attr.background_pixel =white ;
attr.background_pixmap = bg_pic;
attr.border_pixel = 100;
attr.override_redirect = True;
(*wnd1) = XCreateWindow(*dsp, root, 0, 0, dW, dH,0,
CopyFromParent, CopyFromParent,CopyFromParent,
win_mask
,&attr);
XMapRaised(*dsp,*wnd1);
XpmCreatePixmapFromData(*dsp,*wnd1,ccafe_xpm,&pic,&shape,NULL);
attr1.background_pixel =white ;
attr1.background_pixmap = pic;
logo = XCreateWindow(*dsp,*wnd1,dW-150,0,150,30,0,CopyFromParent,CopyFromParent,CopyF romParent,CWBackPixmap,&attr1);
XMapWindow(*dsp,logo);
//logo2 = XCreateSimpleWindow(*dsp, *wnd1, 0, 0, dW-150, 30, 0, 0,300);
//XMapWindow(*dsp,logo2);
XpmCreatePixmapFromData(*dsp,*wnd1,Locked_xpm,&lock,&shp,NULL);
attr2.background_pixmap = lock;
wnd = XCreateWindow(*dsp,*wnd1,dW/4+20,dH/4,600,600,0,CopyFromParent,CopyFromParent,CopyFrom Parent,CWBackPixmap,&attr2);
//wnd = XCreateSimpleWindow(*dsp, *wnd1, x, y, 200, 200, 1, 0, 400);
XMapWindow(*dsp,wnd);
XGrabPointer(*dsp,*wnd1,False,ButtonPressMask|Butt onReleaseMask|PointerMotionMask,GrabModeAsync,Grab ModeAsync,None,None,CurrentTime);
XGrabKeyboard(*dsp,*wnd1,False,GrabModeAsync,GrabM odeAsync,CurrentTime);
XSelectInput(*dsp,*wnd1,KeyPressMask|KeyReleaseMas k|ButtonPressMask|ButtonReleaseMask|PointerMotionM ask|ShiftMask|LockMask|ControlMask|Mod1Mask|Mod2Ma sk|Mod3Mask|Mod4Mask|Mod5Mask);
return(0);
}
int unlockDisplay(Display **dsp,Window *wnd1){
if(running == 1){
XDestroyWindow(*dsp,*wnd1);
XCloseDisplay(*dsp);
running = 0;
}
return(0);
}
blockDisplay - work fine, when i call unblockDisplay - get a Segmentation Fault. What could be wrong? Thanks in advance for your help, code routines to create a window - quote:
#include "stdlib.h"
#include "stdio.h"
#include "string.h"
#include "timer.h"
#include "window.h"
#include "X11/Xlib.h"
#include <X11/Xutil.h>
#include <X11/Xatom.h>
#include <X11/xpm.h>
#include "ccafe.xpm"
#include "Locked.xpm"
#include "pthread.h"
//объявляем переменные-с для блокировщика
Window root,wnd,logo,logo2;
int x,y,dW,dH;
int running = 0;
char *background = NULL;
// Соединение с сервером
Display *display;
// Окно
Window window;
// Ширина и высота окна
int window_width = 80;
int window_height = 30;
void* initWindow(void* arg)
{
//pthread_t lthread;
int ret;
//pthread_attr_t tattr;
XInitThreads();
window_init();
printf("Window Thread\n");
window_loop();
// ret = pthread_attr_init(&tattr);
// ret = pthread_attr_setdetachstate(&tattr,PTHREAD_CREATE_DETACHED);
// if( ret = pthread_create(<hread, &tattr,window_loop , NULL) != 0) {
// printf("TThread creation failed: %d\n", ret);
// }
}
void window_init()
{
display = XOpenDisplay(NULL);
if (display == NULL)
{
exit(EXIT_FAILURE);
}
int screen_number = DefaultScreen(display);
int display_width = DisplayWidth(display, screen_number);
int display_height = DisplayHeight(display, screen_number);
int window_pos_x = display_width - window_width;
int window_pos_y = display_height - window_height;
XLockDisplay(display);
window = XCreateSimpleWindow(display, RootWindow(display, screen_number),
window_pos_x, window_pos_y, window_width, window_height, 0,
BlackPixel(display, screen_number),WhitePixel(display, screen_number));
//window = XCreateWindow(display, RootWindow(display, screen_number),
// window_pos_x, window_pos_y, window_width, window_height, 0,
// CopyFromParent,CopyFromParent,CopyFromParent,0, 0);
XSelectInput(display, window, ExposureMask/* | ResizeRedirectMask*/);
//XRaiseWindow(display, window);
SetNoBorder(display, window,RootWindow(display, screen_number));
//убираемся из панели задач и pager
Atom a = XInternAtom(display, "_NET_WM_STATE", True);
if (a != None) {
Atom prop = XInternAtom(display, "_NET_WM_STATE_SKIP_TASKBAR", True);
XChangeProperty(display, window, a, XA_ATOM, 32, PropModeAppend, (unsigned char *) &prop, 1);
Atom prop1 = XInternAtom(display, "_NET_WM_STATE_SKIP_PAGER", True);
XChangeProperty(display, window, a, XA_ATOM, 32, PropModeAppend, (unsigned char *) &prop1, 1);
Atom prop2 = XInternAtom(display, "_NET_WM_STATE_ABOVE", True);
XChangeProperty(display, window, a, XA_ATOM, 32, PropModeAppend, (unsigned char *) &prop2, 1);
}
XMapWindow(display, window);
XStoreName(display, window, "CCafe");
XMoveWindow(display, window, display_width, display_height);
XUnlockDisplay(display);
XFlush(display);
}
//убираем к хуям рамочки вокруг окна.
void SetNoBorder(Display *dpy, Window win, Window root)
{ int set = 0;
Atom WM_HINTS;
WM_HINTS = XInternAtom(dpy, "_MOTIF_WM_HINTS", True);
if(WM_HINTS != None)
{
struct
{ unsigned long flags;
unsigned long functions;
unsigned long decorations;
long input_mode;
unsigned long status;
} MWMHints = { (1L << 1), 0, 0, 0, 0 };
XChangeProperty(dpy, win, WM_HINTS, WM_HINTS, 32,
PropModeReplace, (unsigned char *)&MWMHints,
sizeof(MWMHints)/sizeof(long));
set = 1;
}
WM_HINTS = XInternAtom(dpy, "KWM_WIN_DECORATION", True);
if(WM_HINTS != None)
{ long KWMHints = 0;
XChangeProperty(dpy, win, WM_HINTS, WM_HINTS, 32,
PropModeReplace, (unsigned char *)&KWMHints,
sizeof(KWMHints)/sizeof(long));
set = 1;
}
WM_HINTS = XInternAtom(dpy, "_WIN_HINTS", True);
if(WM_HINTS != None)
{ long GNOMEHints = 0;
XChangeProperty(dpy, win, WM_HINTS, WM_HINTS, 32,
PropModeReplace, (unsigned char *)&GNOMEHints,
sizeof(GNOMEHints)/sizeof(long));
set = 1;
}
if(! set)
XSetTransientForHint(dpy, win, root);
}
//ну-с...блокировка экрана
int blockDisplay (Display **dsp,Window *wnd1)
{
XSetWindowAttributes attr,attr1,attr2;
Pixmap shape,pic,lock,shp, bg_pic, bg_shp;
unsigned long white;
int snumber = 0;
long win_mask = CWBackPixel|CWBorderPixel|CWOverrideRedirect;
if(running == 1)
return 0;
running = 1;
x=5;
y=35;
XInitThreads();
(*dsp) = XOpenDisplay(0);
if((*dsp) == NULL)
return(-1);
//dsp = XOpenDisplay(getenv("DISPLAY"));
dW = XDisplayWidth(*dsp,snumber);
dH = XDisplayHeight(*dsp,snumber);
root = XRootWindow(*dsp,snumber);
if(background != NULL)
{
if(XpmReadFileToPixmap(*dsp,root,background,&bg_pic,&bg_shp,NULL) != XpmOpenFailed)
win_mask = CWBackPixmap|CWBorderPixel|CWOverrideRedirect;
}
white = XWhitePixel(*dsp,0);
attr.background_pixel =white ;
attr.background_pixmap = bg_pic;
attr.border_pixel = 100;
attr.override_redirect = True;
(*wnd1) = XCreateWindow(*dsp, root, 0, 0, dW, dH,0,
CopyFromParent, CopyFromParent,CopyFromParent,
win_mask
,&attr);
XMapRaised(*dsp,*wnd1);
XpmCreatePixmapFromData(*dsp,*wnd1,ccafe_xpm,&pic,&shape,NULL);
attr1.background_pixel =white ;
attr1.background_pixmap = pic;
logo = XCreateWindow(*dsp,*wnd1,dW-150,0,150,30,0,CopyFromParent,CopyFromParent,CopyF romParent,CWBackPixmap,&attr1);
XMapWindow(*dsp,logo);
//logo2 = XCreateSimpleWindow(*dsp, *wnd1, 0, 0, dW-150, 30, 0, 0,300);
//XMapWindow(*dsp,logo2);
XpmCreatePixmapFromData(*dsp,*wnd1,Locked_xpm,&lock,&shp,NULL);
attr2.background_pixmap = lock;
wnd = XCreateWindow(*dsp,*wnd1,dW/4+20,dH/4,600,600,0,CopyFromParent,CopyFromParent,CopyFrom Parent,CWBackPixmap,&attr2);
//wnd = XCreateSimpleWindow(*dsp, *wnd1, x, y, 200, 200, 1, 0, 400);
XMapWindow(*dsp,wnd);
XGrabPointer(*dsp,*wnd1,False,ButtonPressMask|Butt onReleaseMask|PointerMotionMask,GrabModeAsync,Grab ModeAsync,None,None,CurrentTime);
XGrabKeyboard(*dsp,*wnd1,False,GrabModeAsync,GrabM odeAsync,CurrentTime);
XSelectInput(*dsp,*wnd1,KeyPressMask|KeyReleaseMas k|ButtonPressMask|ButtonReleaseMask|PointerMotionM ask|ShiftMask|LockMask|ControlMask|Mod1Mask|Mod2Ma sk|Mod3Mask|Mod4Mask|Mod5Mask);
return(0);
}
//разблокируем дисплей
int unlockDisplay(Display **dsp,Window *wnd1){
if(running == 1){
XDestroyWindow(*dsp,*wnd1);
//XCloseDisplay(*dsp);
running = 0;
}
return(0);
}
void window_destroy()
{
XDestroyWindow(display, window);
XCloseDisplay(display);
}
void window_loop()
{
int ret;
XEvent event;
for (;;)
{
// printf("Loop Thread\n");
//XLockDisplay(display);
XNextEvent(display, &event);
//XUnlockDisplay(display);
switch (event.type)
{
case Expose:
{
window_repaint();
// printf("Loop Thread_1\n");
break;
}
case ResizeRequest:
{
XResizeRequestEvent *resize = (XResizeRequestEvent *) &event;
window_width = resize->width;
window_height = resize->height;
// printf("Loop Thread_2\n");
break;
}
default:
{
break;
}
}
}
}
void window_repaint_send()
{
XExposeEvent expose = { Expose, 0, 1, display, window, 0, 0, window_width, window_height, 0 };
//XLockDisplay(display);
XSendEvent(display, window, 0, ExposureMask, (XEvent *) &expose);
// XUnlockDisplay(display);
//printf("repaint_send\n");
XFlush(display);
}
void window_repaint()
{
// printf("repaint\n");
XLockDisplay(display);
XClearArea(display, window, 0, 0, window_width, window_height, 0);
XFontStruct *font = XLoadQueryFont(display, "10x20");
if (!font)
{
exit(EXIT_FAILURE);
}
GC gc = XCreateGC(display, window, 0, NULL);
XSetFont(display, gc, font->fid);
char timer_message[100];
timer_str(timer_message);
int timer_message_pos_x = window_width / 2 - XTextWidth(font, timer_message, strlen(timer_message)) / 2;
int timer_message_pos_y = window_height / 2 ;
XDrawString(display, window, gc, timer_message_pos_x, timer_message_pos_y, timer_message, strlen(timer_message));
char attention_message[100];
if (timer_get_message(attention_message))
{
int attention_message_pos_x = window_width / 2 - XTextWidth(font, attention_message, strlen(attention_message)) / 2;
int attention_message_pos_y = window_height / 2 + 30;
XDrawString(display, window, gc, attention_message_pos_x, attention_message_pos_y, attention_message, strlen(attention_message));
}
XUnlockDisplay(display);
XFreeGC(display, gc);
}
Valgrind output:
==27044== Command: ./cclient
==27044==
Initializing parameters to default values...
Reading config file...
==27044== Source and destination overlap in strcpy(0x7fefffd20, 0x7fefffd20)
==27044== at 0x4C2982A: strcpy (mc_replace_strmem.c:311)
==27044== by 0x4037BA: trim (in /home/cynic/Coding/CCafe/CClient/cclient)
==27044== by 0x4038C6: parse_config (in /home/cynic/Coding/CCafe/CClient/cclient)
==27044== by 0x4021C2: main (in /home/cynic/Coding/CCafe/CClient/cclient)
==27044==
value: 9030
Final values:
port: 9030, MSG: 512
Timer Thread
Window Thread
Server: connect from host 127.0.0.1, port -28110.
block
start
==27044== Use of uninitialised value of size 8
==27044== at 0x4E4C5DC: XDestroyWindow (in /usr/lib/x86_64-linux-gnu/libX11.so.6.3.0)
==27044== by 0x402F89: unlockDisplay (in /home/cynic/Coding/CCafe/CClient/cclient)
==27044== by 0x401CD8: parseCommand (in /home/cynic/Coding/CCafe/CClient/cclient)
==27044== by 0x401F9C: read_from_client (in /home/cynic/Coding/CCafe/CClient/cclient)
==27044== by 0x40254D: main (in /home/cynic/Coding/CCafe/CClient/cclient)
==27044==
==27044== Invalid read of size 8
==27044== at 0x4E4C5DC: XDestroyWindow (in /usr/lib/x86_64-linux-gnu/libX11.so.6.3.0)
==27044== by 0x402F89: unlockDisplay (in /home/cynic/Coding/CCafe/CClient/cclient)
==27044== by 0x401CD8: parseCommand (in /home/cynic/Coding/CCafe/CClient/cclient)
==27044== by 0x401F9C: read_from_client (in /home/cynic/Coding/CCafe/CClient/cclient)
==27044== by 0x40254D: main (in /home/cynic/Coding/CCafe/CClient/cclient)
==27044== Address 0x972 is not stack'd, malloc'd or (recently) free'd
==27044==
==27044==
==27044== Process terminating with default action of signal 11 (SIGSEGV)
==27044== Access not within mapped region at address 0x972
==27044== at 0x4E4C5DC: XDestroyWindow (in /usr/lib/x86_64-linux-gnu/libX11.so.6.3.0)
==27044== by 0x402F89: unlockDisplay (in /home/cynic/Coding/CCafe/CClient/cclient)
==27044== by 0x401CD8: parseCommand (in /home/cynic/Coding/CCafe/CClient/cclient)
==27044== by 0x401F9C: read_from_client (in /home/cynic/Coding/CCafe/CClient/cclient)
==27044== by 0x40254D: main (in /home/cynic/Coding/CCafe/CClient/cclient)
int blockDisplay (Display **dsp,Window *wnd1)
{
XSetWindowAttributes attr,attr1,attr2;
Pixmap shape,pic,lock,shp, bg_pic, bg_shp;
unsigned long white;
int snumber = 0;
long win_mask = CWBackPixel|CWBorderPixel|CWOverrideRedirect;
if(running == 1)
return 0;
running = 1;
x=5;
y=35;
XInitThreads();
(*dsp) = XOpenDisplay(0);
if((*dsp) == NULL)
return(-1);
//dsp = XOpenDisplay(getenv("DISPLAY"));
dW = XDisplayWidth(*dsp,snumber);
dH = XDisplayHeight(*dsp,snumber);
root = XRootWindow(*dsp,snumber);
if(background != NULL)
{
if(XpmReadFileToPixmap(*dsp,root,background,&bg_pic,&bg_shp,NULL) != XpmOpenFailed)
win_mask = CWBackPixmap|CWBorderPixel|CWOverrideRedirect;
}
white = XWhitePixel(*dsp,0);
attr.background_pixel =white ;
attr.background_pixmap = bg_pic;
attr.border_pixel = 100;
attr.override_redirect = True;
(*wnd1) = XCreateWindow(*dsp, root, 0, 0, dW, dH,0,
CopyFromParent, CopyFromParent,CopyFromParent,
win_mask
,&attr);
XMapRaised(*dsp,*wnd1);
XpmCreatePixmapFromData(*dsp,*wnd1,ccafe_xpm,&pic,&shape,NULL);
attr1.background_pixel =white ;
attr1.background_pixmap = pic;
logo = XCreateWindow(*dsp,*wnd1,dW-150,0,150,30,0,CopyFromParent,CopyFromParent,CopyF romParent,CWBackPixmap,&attr1);
XMapWindow(*dsp,logo);
//logo2 = XCreateSimpleWindow(*dsp, *wnd1, 0, 0, dW-150, 30, 0, 0,300);
//XMapWindow(*dsp,logo2);
XpmCreatePixmapFromData(*dsp,*wnd1,Locked_xpm,&lock,&shp,NULL);
attr2.background_pixmap = lock;
wnd = XCreateWindow(*dsp,*wnd1,dW/4+20,dH/4,600,600,0,CopyFromParent,CopyFromParent,CopyFrom Parent,CWBackPixmap,&attr2);
//wnd = XCreateSimpleWindow(*dsp, *wnd1, x, y, 200, 200, 1, 0, 400);
XMapWindow(*dsp,wnd);
XGrabPointer(*dsp,*wnd1,False,ButtonPressMask|Butt onReleaseMask|PointerMotionMask,GrabModeAsync,Grab ModeAsync,None,None,CurrentTime);
XGrabKeyboard(*dsp,*wnd1,False,GrabModeAsync,GrabM odeAsync,CurrentTime);
XSelectInput(*dsp,*wnd1,KeyPressMask|KeyReleaseMas k|ButtonPressMask|ButtonReleaseMask|PointerMotionM ask|ShiftMask|LockMask|ControlMask|Mod1Mask|Mod2Ma sk|Mod3Mask|Mod4Mask|Mod5Mask);
return(0);
}
int unlockDisplay(Display **dsp,Window *wnd1){
if(running == 1){
XDestroyWindow(*dsp,*wnd1);
XCloseDisplay(*dsp);
running = 0;
}
return(0);
}
blockDisplay - work fine, when i call unblockDisplay - get a Segmentation Fault. What could be wrong? Thanks in advance for your help, code routines to create a window - quote:
#include "stdlib.h"
#include "stdio.h"
#include "string.h"
#include "timer.h"
#include "window.h"
#include "X11/Xlib.h"
#include <X11/Xutil.h>
#include <X11/Xatom.h>
#include <X11/xpm.h>
#include "ccafe.xpm"
#include "Locked.xpm"
#include "pthread.h"
//объявляем переменные-с для блокировщика
Window root,wnd,logo,logo2;
int x,y,dW,dH;
int running = 0;
char *background = NULL;
// Соединение с сервером
Display *display;
// Окно
Window window;
// Ширина и высота окна
int window_width = 80;
int window_height = 30;
void* initWindow(void* arg)
{
//pthread_t lthread;
int ret;
//pthread_attr_t tattr;
XInitThreads();
window_init();
printf("Window Thread\n");
window_loop();
// ret = pthread_attr_init(&tattr);
// ret = pthread_attr_setdetachstate(&tattr,PTHREAD_CREATE_DETACHED);
// if( ret = pthread_create(<hread, &tattr,window_loop , NULL) != 0) {
// printf("TThread creation failed: %d\n", ret);
// }
}
void window_init()
{
display = XOpenDisplay(NULL);
if (display == NULL)
{
exit(EXIT_FAILURE);
}
int screen_number = DefaultScreen(display);
int display_width = DisplayWidth(display, screen_number);
int display_height = DisplayHeight(display, screen_number);
int window_pos_x = display_width - window_width;
int window_pos_y = display_height - window_height;
XLockDisplay(display);
window = XCreateSimpleWindow(display, RootWindow(display, screen_number),
window_pos_x, window_pos_y, window_width, window_height, 0,
BlackPixel(display, screen_number),WhitePixel(display, screen_number));
//window = XCreateWindow(display, RootWindow(display, screen_number),
// window_pos_x, window_pos_y, window_width, window_height, 0,
// CopyFromParent,CopyFromParent,CopyFromParent,0, 0);
XSelectInput(display, window, ExposureMask/* | ResizeRedirectMask*/);
//XRaiseWindow(display, window);
SetNoBorder(display, window,RootWindow(display, screen_number));
//убираемся из панели задач и pager
Atom a = XInternAtom(display, "_NET_WM_STATE", True);
if (a != None) {
Atom prop = XInternAtom(display, "_NET_WM_STATE_SKIP_TASKBAR", True);
XChangeProperty(display, window, a, XA_ATOM, 32, PropModeAppend, (unsigned char *) &prop, 1);
Atom prop1 = XInternAtom(display, "_NET_WM_STATE_SKIP_PAGER", True);
XChangeProperty(display, window, a, XA_ATOM, 32, PropModeAppend, (unsigned char *) &prop1, 1);
Atom prop2 = XInternAtom(display, "_NET_WM_STATE_ABOVE", True);
XChangeProperty(display, window, a, XA_ATOM, 32, PropModeAppend, (unsigned char *) &prop2, 1);
}
XMapWindow(display, window);
XStoreName(display, window, "CCafe");
XMoveWindow(display, window, display_width, display_height);
XUnlockDisplay(display);
XFlush(display);
}
//убираем к хуям рамочки вокруг окна.
void SetNoBorder(Display *dpy, Window win, Window root)
{ int set = 0;
Atom WM_HINTS;
WM_HINTS = XInternAtom(dpy, "_MOTIF_WM_HINTS", True);
if(WM_HINTS != None)
{
struct
{ unsigned long flags;
unsigned long functions;
unsigned long decorations;
long input_mode;
unsigned long status;
} MWMHints = { (1L << 1), 0, 0, 0, 0 };
XChangeProperty(dpy, win, WM_HINTS, WM_HINTS, 32,
PropModeReplace, (unsigned char *)&MWMHints,
sizeof(MWMHints)/sizeof(long));
set = 1;
}
WM_HINTS = XInternAtom(dpy, "KWM_WIN_DECORATION", True);
if(WM_HINTS != None)
{ long KWMHints = 0;
XChangeProperty(dpy, win, WM_HINTS, WM_HINTS, 32,
PropModeReplace, (unsigned char *)&KWMHints,
sizeof(KWMHints)/sizeof(long));
set = 1;
}
WM_HINTS = XInternAtom(dpy, "_WIN_HINTS", True);
if(WM_HINTS != None)
{ long GNOMEHints = 0;
XChangeProperty(dpy, win, WM_HINTS, WM_HINTS, 32,
PropModeReplace, (unsigned char *)&GNOMEHints,
sizeof(GNOMEHints)/sizeof(long));
set = 1;
}
if(! set)
XSetTransientForHint(dpy, win, root);
}
//ну-с...блокировка экрана
int blockDisplay (Display **dsp,Window *wnd1)
{
XSetWindowAttributes attr,attr1,attr2;
Pixmap shape,pic,lock,shp, bg_pic, bg_shp;
unsigned long white;
int snumber = 0;
long win_mask = CWBackPixel|CWBorderPixel|CWOverrideRedirect;
if(running == 1)
return 0;
running = 1;
x=5;
y=35;
XInitThreads();
(*dsp) = XOpenDisplay(0);
if((*dsp) == NULL)
return(-1);
//dsp = XOpenDisplay(getenv("DISPLAY"));
dW = XDisplayWidth(*dsp,snumber);
dH = XDisplayHeight(*dsp,snumber);
root = XRootWindow(*dsp,snumber);
if(background != NULL)
{
if(XpmReadFileToPixmap(*dsp,root,background,&bg_pic,&bg_shp,NULL) != XpmOpenFailed)
win_mask = CWBackPixmap|CWBorderPixel|CWOverrideRedirect;
}
white = XWhitePixel(*dsp,0);
attr.background_pixel =white ;
attr.background_pixmap = bg_pic;
attr.border_pixel = 100;
attr.override_redirect = True;
(*wnd1) = XCreateWindow(*dsp, root, 0, 0, dW, dH,0,
CopyFromParent, CopyFromParent,CopyFromParent,
win_mask
,&attr);
XMapRaised(*dsp,*wnd1);
XpmCreatePixmapFromData(*dsp,*wnd1,ccafe_xpm,&pic,&shape,NULL);
attr1.background_pixel =white ;
attr1.background_pixmap = pic;
logo = XCreateWindow(*dsp,*wnd1,dW-150,0,150,30,0,CopyFromParent,CopyFromParent,CopyF romParent,CWBackPixmap,&attr1);
XMapWindow(*dsp,logo);
//logo2 = XCreateSimpleWindow(*dsp, *wnd1, 0, 0, dW-150, 30, 0, 0,300);
//XMapWindow(*dsp,logo2);
XpmCreatePixmapFromData(*dsp,*wnd1,Locked_xpm,&lock,&shp,NULL);
attr2.background_pixmap = lock;
wnd = XCreateWindow(*dsp,*wnd1,dW/4+20,dH/4,600,600,0,CopyFromParent,CopyFromParent,CopyFrom Parent,CWBackPixmap,&attr2);
//wnd = XCreateSimpleWindow(*dsp, *wnd1, x, y, 200, 200, 1, 0, 400);
XMapWindow(*dsp,wnd);
XGrabPointer(*dsp,*wnd1,False,ButtonPressMask|Butt onReleaseMask|PointerMotionMask,GrabModeAsync,Grab ModeAsync,None,None,CurrentTime);
XGrabKeyboard(*dsp,*wnd1,False,GrabModeAsync,GrabM odeAsync,CurrentTime);
XSelectInput(*dsp,*wnd1,KeyPressMask|KeyReleaseMas k|ButtonPressMask|ButtonReleaseMask|PointerMotionM ask|ShiftMask|LockMask|ControlMask|Mod1Mask|Mod2Ma sk|Mod3Mask|Mod4Mask|Mod5Mask);
return(0);
}
//разблокируем дисплей
int unlockDisplay(Display **dsp,Window *wnd1){
if(running == 1){
XDestroyWindow(*dsp,*wnd1);
//XCloseDisplay(*dsp);
running = 0;
}
return(0);
}
void window_destroy()
{
XDestroyWindow(display, window);
XCloseDisplay(display);
}
void window_loop()
{
int ret;
XEvent event;
for (;;)
{
// printf("Loop Thread\n");
//XLockDisplay(display);
XNextEvent(display, &event);
//XUnlockDisplay(display);
switch (event.type)
{
case Expose:
{
window_repaint();
// printf("Loop Thread_1\n");
break;
}
case ResizeRequest:
{
XResizeRequestEvent *resize = (XResizeRequestEvent *) &event;
window_width = resize->width;
window_height = resize->height;
// printf("Loop Thread_2\n");
break;
}
default:
{
break;
}
}
}
}
void window_repaint_send()
{
XExposeEvent expose = { Expose, 0, 1, display, window, 0, 0, window_width, window_height, 0 };
//XLockDisplay(display);
XSendEvent(display, window, 0, ExposureMask, (XEvent *) &expose);
// XUnlockDisplay(display);
//printf("repaint_send\n");
XFlush(display);
}
void window_repaint()
{
// printf("repaint\n");
XLockDisplay(display);
XClearArea(display, window, 0, 0, window_width, window_height, 0);
XFontStruct *font = XLoadQueryFont(display, "10x20");
if (!font)
{
exit(EXIT_FAILURE);
}
GC gc = XCreateGC(display, window, 0, NULL);
XSetFont(display, gc, font->fid);
char timer_message[100];
timer_str(timer_message);
int timer_message_pos_x = window_width / 2 - XTextWidth(font, timer_message, strlen(timer_message)) / 2;
int timer_message_pos_y = window_height / 2 ;
XDrawString(display, window, gc, timer_message_pos_x, timer_message_pos_y, timer_message, strlen(timer_message));
char attention_message[100];
if (timer_get_message(attention_message))
{
int attention_message_pos_x = window_width / 2 - XTextWidth(font, attention_message, strlen(attention_message)) / 2;
int attention_message_pos_y = window_height / 2 + 30;
XDrawString(display, window, gc, attention_message_pos_x, attention_message_pos_y, attention_message, strlen(attention_message));
}
XUnlockDisplay(display);
XFreeGC(display, gc);
}
Valgrind output:
==27044== Command: ./cclient
==27044==
Initializing parameters to default values...
Reading config file...
==27044== Source and destination overlap in strcpy(0x7fefffd20, 0x7fefffd20)
==27044== at 0x4C2982A: strcpy (mc_replace_strmem.c:311)
==27044== by 0x4037BA: trim (in /home/cynic/Coding/CCafe/CClient/cclient)
==27044== by 0x4038C6: parse_config (in /home/cynic/Coding/CCafe/CClient/cclient)
==27044== by 0x4021C2: main (in /home/cynic/Coding/CCafe/CClient/cclient)
==27044==
value: 9030
Final values:
port: 9030, MSG: 512
Timer Thread
Window Thread
Server: connect from host 127.0.0.1, port -28110.
block
start
==27044== Use of uninitialised value of size 8
==27044== at 0x4E4C5DC: XDestroyWindow (in /usr/lib/x86_64-linux-gnu/libX11.so.6.3.0)
==27044== by 0x402F89: unlockDisplay (in /home/cynic/Coding/CCafe/CClient/cclient)
==27044== by 0x401CD8: parseCommand (in /home/cynic/Coding/CCafe/CClient/cclient)
==27044== by 0x401F9C: read_from_client (in /home/cynic/Coding/CCafe/CClient/cclient)
==27044== by 0x40254D: main (in /home/cynic/Coding/CCafe/CClient/cclient)
==27044==
==27044== Invalid read of size 8
==27044== at 0x4E4C5DC: XDestroyWindow (in /usr/lib/x86_64-linux-gnu/libX11.so.6.3.0)
==27044== by 0x402F89: unlockDisplay (in /home/cynic/Coding/CCafe/CClient/cclient)
==27044== by 0x401CD8: parseCommand (in /home/cynic/Coding/CCafe/CClient/cclient)
==27044== by 0x401F9C: read_from_client (in /home/cynic/Coding/CCafe/CClient/cclient)
==27044== by 0x40254D: main (in /home/cynic/Coding/CCafe/CClient/cclient)
==27044== Address 0x972 is not stack'd, malloc'd or (recently) free'd
==27044==
==27044==
==27044== Process terminating with default action of signal 11 (SIGSEGV)
==27044== Access not within mapped region at address 0x972
==27044== at 0x4E4C5DC: XDestroyWindow (in /usr/lib/x86_64-linux-gnu/libX11.so.6.3.0)
==27044== by 0x402F89: unlockDisplay (in /home/cynic/Coding/CCafe/CClient/cclient)
==27044== by 0x401CD8: parseCommand (in /home/cynic/Coding/CCafe/CClient/cclient)
==27044== by 0x401F9C: read_from_client (in /home/cynic/Coding/CCafe/CClient/cclient)
==27044== by 0x40254D: main (in /home/cynic/Coding/CCafe/CClient/cclient)