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wpe: Add a basic WebProcess crash handler

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For now an error is emitted. Additional notification could be sent to the
application as well, if needed.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3077>
This commit is contained in:
Philippe Normand 2022-09-24 17:03:22 +01:00 committed by GStreamer Marge Bot
parent 01f079f613
commit ec2330a796
2 changed files with 25 additions and 1 deletions
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20
subprojects/gst-plugins-bad/ext/wpe/WPEThreadedView.cpp
View file

@ -399,7 +399,26 @@ static void s_loadProgressChanged(GObject* object, GParamSpec*, gpointer data)
gst_object_unref (bus);
}
static void s_webProcessCrashed(WebKitWebView*, WebKitWebProcessTerminationReason reason, gpointer data)
{
auto &view = *static_cast<WPEView *>(data);
auto *src = view.src();
gchar *reason_str =
g_enum_to_string (WEBKIT_TYPE_WEB_PROCESS_TERMINATION_REASON, reason);
// In case the crash happened while doing the initial URL loading, unlock
// the load completion waiting.
view.notifyLoadFinished();
// TODO: Emit a signal here and fallback to error system if signal wasn't handled by application?
GST_ELEMENT_ERROR(GST_ELEMENT_CAST(src), RESOURCE, FAILED, (NULL), ("%s", reason_str));
g_free (reason_str);
}
WPEView::WPEView(WebKitWebContext* web_context, GstWpeVideoSrc* src, GstGLContext* context, GstGLDisplay* display, int width, int height)
: m_src(src)
{
#ifdef G_OS_UNIX
{
@ -474,6 +493,7 @@ WPEView::WPEView(WebKitWebContext* web_context, GstWpeVideoSrc* src, GstGLContex
g_signal_connect(webkit.view, "load-failed", G_CALLBACK(s_loadFailed), src);
g_signal_connect(webkit.view, "load-failed-with-tls-errors", G_CALLBACK(s_loadFailedWithTLSErrors), src);
g_signal_connect(webkit.view, "notify::estimated-load-progress", G_CALLBACK(s_loadProgressChanged), src);
g_signal_connect(webkit.view, "web-process-terminated", G_CALLBACK(s_webProcessCrashed), this);
auto* settings = webkit_web_view_get_settings(webkit.view);
webkit_settings_set_enable_webaudio(settings, TRUE);

6
subprojects/gst-plugins-bad/ext/wpe/WPEThreadedView.h
View file

@ -59,6 +59,10 @@ public:
void disconnectLoadFailedSignal();
void waitLoadCompletion();
GstWpeVideoSrc *src() const { return m_src; }
void notifyLoadFinished();
protected:
void handleExportedImage(gpointer);
void handleExportedBuffer(struct wpe_fdo_shm_exported_buffer*);
@ -67,7 +71,6 @@ private:
struct wpe_view_backend* backend() const;
void frameComplete();
void loadUriUnlocked(const gchar*);
void notifyLoadFinished();
void releaseImage(gpointer);
void releaseSHMBuffer(gpointer);
@ -121,6 +124,7 @@ private:
gulong extension_msg_sigid;
} audio {0, 0};
GstWpeVideoSrc *m_src { nullptr };
};
class WPEContextThread {