X11: Ensure XGetWindowProperty data gets freed
Fixes a small memory leak reported by lsan:
```
Direct leak of 73 byte(s) in 1 object(s) allocated from:
#0 0x7f29825f3e70 in malloc (/lib64/liblsan.so.0+0xee70)
#1 0x7f29824a5729 in XGetWindowProperty (/lib64/libX11.so.6+0x29729)
```
This commit is contained in:
Rémi Verschelde
parent
6bd7fd0a00
commit
08ee1de535
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@ -29,14 +29,14 @@
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/*************************************************************************/
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#include "os_x11.h"
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#include "detect_prime.h"
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#include "core/os/dir_access.h"
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#include "core/print_string.h"
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#include "detect_prime.h"
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#include "drivers/gles2/rasterizer_gles2.h"
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#include "drivers/gles3/rasterizer_gles3.h"
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#include "errno.h"
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#include "key_mapping_x11.h"
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#include "main/main.h"
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#include "servers/visual/visual_server_raster.h"
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#include "servers/visual/visual_server_wrap_mt.h"
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@ -44,14 +44,15 @@
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#include <mntent.h>
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#endif
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "X11/Xutil.h"
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#include <X11/Xatom.h>
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#include <X11/Xutil.h>
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#include <X11/extensions/Xinerama.h>
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#include "X11/Xatom.h"
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#include "X11/extensions/Xinerama.h"
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// ICCCM
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#define WM_NormalState 1L // window normal state
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#define WM_IconicState 3L // window minimized
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@ -60,8 +61,6 @@
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#define _NET_WM_STATE_ADD 1L // add/set property
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#define _NET_WM_STATE_TOGGLE 2L // toggle property
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#include "main/main.h"
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#include <dlfcn.h>
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#include <fcntl.h>
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#include <sys/stat.h>
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@ -73,8 +72,6 @@
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#undef KEY_TAB
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#endif
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#include <X11/Xatom.h>
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#undef CursorShape
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#include <X11/XKBlib.h>
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@ -1504,6 +1501,7 @@ bool OS_X11::is_window_minimized() const {
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unsigned long len;
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unsigned long remaining;
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unsigned char *data = NULL;
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bool retval = false;
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int result = XGetWindowProperty(
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x11_display,
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@ -1521,10 +1519,13 @@ bool OS_X11::is_window_minimized() const {
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if (result == Success) {
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long *state = (long *)data;
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if (state[0] == WM_IconicState)
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return true;
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if (state[0] == WM_IconicState) {
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retval = true;
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}
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XFree(data);
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}
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return false;
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return retval;
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}
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void OS_X11::set_window_maximized(bool p_enabled) {
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@ -1560,13 +1561,16 @@ void OS_X11::set_window_maximized(bool p_enabled) {
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maximized = p_enabled;
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}
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bool OS_X11::is_window_maximize_allowed() {
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Atom property = XInternAtom(x11_display, "_NET_WM_ALLOWED_ACTIONS", False);
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// Just a helper to reduce code duplication in `is_window_maximize_allowed`
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// and `is_window_maximized`.
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bool OS_X11::window_maximize_check(const char *p_atom_name) const {
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Atom property = XInternAtom(x11_display, p_atom_name, False);
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Atom type;
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int format;
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unsigned long len;
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unsigned long remaining;
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unsigned char *data = NULL;
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bool retval = false;
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int result = XGetWindowProperty(
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x11_display,
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@ -1595,63 +1599,27 @@ bool OS_X11::is_window_maximize_allowed() {
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if (atoms[i] == wm_act_max_vert)
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found_wm_act_max_vert = true;
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if (found_wm_act_max_horz || found_wm_act_max_vert)
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return true;
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}
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XFree(atoms);
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}
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return false;
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}
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bool OS_X11::is_window_maximized() const {
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// Using EWMH -- Extended Window Manager Hints
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Atom property = XInternAtom(x11_display, "_NET_WM_STATE", False);
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Atom type;
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int format;
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unsigned long len;
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unsigned long remaining;
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unsigned char *data = NULL;
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bool retval = false;
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int result = XGetWindowProperty(
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x11_display,
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x11_window,
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property,
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0,
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1024,
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False,
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XA_ATOM,
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&type,
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&format,
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&len,
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&remaining,
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&data);
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if (result == Success) {
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Atom *atoms = (Atom *)data;
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Atom wm_max_horz = XInternAtom(x11_display, "_NET_WM_STATE_MAXIMIZED_HORZ", False);
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Atom wm_max_vert = XInternAtom(x11_display, "_NET_WM_STATE_MAXIMIZED_VERT", False);
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bool found_wm_max_horz = false;
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bool found_wm_max_vert = false;
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for (uint64_t i = 0; i < len; i++) {
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if (atoms[i] == wm_max_horz)
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found_wm_max_horz = true;
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if (atoms[i] == wm_max_vert)
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found_wm_max_vert = true;
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if (found_wm_max_horz && found_wm_max_vert) {
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if (found_wm_act_max_horz || found_wm_act_max_vert) {
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retval = true;
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break;
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}
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}
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XFree(data);
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}
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XFree(data);
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return retval;
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}
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bool OS_X11::is_window_maximize_allowed() const {
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return window_maximize_check("_NET_WM_ALLOWED_ACTIONS");
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}
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bool OS_X11::is_window_maximized() const {
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// Using EWMH -- Extended Window Manager Hints
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return window_maximize_check("_NET_WM_STATE");
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}
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void OS_X11::set_window_always_on_top(bool p_enabled) {
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if (is_window_always_on_top() == p_enabled)
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return;
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@ -44,7 +44,6 @@
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#include "servers/audio_server.h"
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#include "servers/visual/rasterizer.h"
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#include "servers/visual_server.h"
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//#include "servers/visual/visual_server_wrap_mt.h"
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#include <X11/Xcursor/Xcursor.h>
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#include <X11/Xlib.h>
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@ -222,7 +221,8 @@ protected:
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void _window_changed(XEvent *event);
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bool is_window_maximize_allowed();
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bool window_maximize_check(const char *p_atom_name) const;
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bool is_window_maximize_allowed() const;
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public:
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virtual String get_name() const;
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