forked from mirrors/gecko-dev
c6b2c5db61
Backed out changeset f17c7565707b (bug 1772006) Backed out changeset c725fe1f5882 (bug 1772006) Backed out changeset d19663161261 (bug 1772006) Backed out changeset b6611ab002d9 (bug 1772006) Backed out changeset 790f42b64af9 (bug 1772006) Backed out changeset 79a734b4e4d9 (bug 1772006) Backed out changeset 42730aae16ea (bug 1772006) Backed out changeset b2542aef3054 (bug 1772006) Backed out changeset 962bfea4a309 (bug 1772006)
118 lines
3.4 KiB
C++
118 lines
3.4 KiB
C++
/* -*- Mode: C++; tab-width: 40; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsGDKErrorHandler.h"
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#include <gtk/gtk.h>
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#ifdef MOZ_X11
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# include <gdk/gdkx.h>
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#endif
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#include <errno.h>
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#include <stdlib.h>
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#include <string.h>
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#include "nsDebug.h"
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#include "nsString.h"
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#ifdef MOZ_X11
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# include "nsX11ErrorHandler.h"
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#endif
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#include "prenv.h"
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/* See https://bugzilla.gnome.org/show_bug.cgi?id=629608#c8
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*
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* GDK implements X11 error traps to ignore X11 errors.
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* Unfortunatelly We don't know which X11 events can be ignored
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* so we have to utilize the Gdk error handler to avoid
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* false alarms in Gtk3.
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*/
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static void GdkErrorHandler(const gchar* log_domain, GLogLevelFlags log_level,
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const gchar* message, gpointer user_data) {
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#ifdef MOZ_X11
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if (strstr(message, "X Window System error")) {
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XErrorEvent event;
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nsDependentCString buffer(message);
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char* endptr;
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/* Parse Gdk X Window error message which has this format:
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* (Details: serial XXXX error_code XXXX request_code XXXX (XXXX) minor_code
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* XXXX)
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*/
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constexpr auto serialString = "(Details: serial "_ns;
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int32_t start = buffer.Find(serialString);
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if (start == kNotFound) {
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MOZ_CRASH_UNSAFE(message);
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}
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start += serialString.Length();
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errno = 0;
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event.serial = strtol(buffer.BeginReading() + start, &endptr, 10);
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if (errno) {
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MOZ_CRASH_UNSAFE(message);
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}
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constexpr auto errorCodeString = " error_code "_ns;
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if (!StringBeginsWith(Substring(endptr, buffer.EndReading()),
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errorCodeString)) {
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MOZ_CRASH_UNSAFE(message);
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}
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errno = 0;
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event.error_code = strtol(endptr + errorCodeString.Length(), &endptr, 10);
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if (errno) {
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MOZ_CRASH_UNSAFE(message);
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}
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constexpr auto requestCodeString = " request_code "_ns;
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if (!StringBeginsWith(Substring(endptr, buffer.EndReading()),
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requestCodeString)) {
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MOZ_CRASH_UNSAFE(message);
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}
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errno = 0;
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event.request_code =
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strtol(endptr + requestCodeString.Length(), &endptr, 10);
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if (errno) {
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MOZ_CRASH_UNSAFE(message);
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}
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constexpr auto minorCodeString = " minor_code "_ns;
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start = buffer.Find(minorCodeString, /* aIgnoreCase = */ false,
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endptr - buffer.BeginReading());
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if (!start) {
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MOZ_CRASH_UNSAFE(message);
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}
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errno = 0;
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event.minor_code = strtol(
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buffer.BeginReading() + start + minorCodeString.Length(), nullptr, 10);
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if (errno) {
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MOZ_CRASH_UNSAFE(message);
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}
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event.display = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
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// Gdk does not provide resource ID
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event.resourceid = 0;
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X11Error(event.display, &event);
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} else
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#endif
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{
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g_log_default_handler(log_domain, log_level, message, user_data);
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MOZ_CRASH_UNSAFE(message);
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}
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}
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void InstallGdkErrorHandler() {
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g_log_set_handler("Gdk",
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(GLogLevelFlags)(G_LOG_LEVEL_ERROR | G_LOG_FLAG_FATAL |
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G_LOG_FLAG_RECURSION),
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GdkErrorHandler, nullptr);
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#ifdef MOZ_X11
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if (PR_GetEnv("MOZ_X_SYNC")) {
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XSynchronize(GDK_DISPLAY_XDISPLAY(gdk_display_get_default()), X11True);
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}
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#endif
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}
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