Chromium Embedded Framework (CEF)
128.4.2+g5c235a2+chromium-128.0.6613.18
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Classes | |
class | CefEndTracingCallback |
Implement this interface to receive notification when tracing has completed. More... | |
Functions | |
bool | CefBeginTracing (const CefString &categories, CefRefPtr< CefCompletionCallback > callback) |
Start tracing events on all processes. More... | |
bool | CefEndTracing (const CefString &tracing_file, CefRefPtr< CefEndTracingCallback > callback) |
Stop tracing events on all processes. More... | |
int64_t | CefNowFromSystemTraceTime () |
Returns the current system trace time or, if none is defined, the current high-res time. More... | |
bool CefBeginTracing | ( | const CefString & | categories, |
CefRefPtr< CefCompletionCallback > | callback | ||
) |
Start tracing events on all processes.
Tracing is initialized asynchronously and |callback| will be executed on the UI thread after initialization is complete.
If CefBeginTracing was called previously, or if a CefEndTracingAsync call is pending, CefBeginTracing will fail and return false.
|categories| is a comma-delimited list of category wildcards. A category can have an optional '-' prefix to make it an excluded category. Having both included and excluded categories in the same list is not supported.
Examples:
This function must be called on the browser process UI thread.
bool CefEndTracing | ( | const CefString & | tracing_file, |
CefRefPtr< CefEndTracingCallback > | callback | ||
) |
Stop tracing events on all processes.
This function will fail and return false if a previous call to CefEndTracingAsync is already pending or if CefBeginTracing was not called.
|tracing_file| is the path at which tracing data will be written and |callback| is the callback that will be executed once all processes have sent their trace data. If |tracing_file| is empty a new temporary file path will be used. If |callback| is empty no trace data will be written.
This function must be called on the browser process UI thread.
int64_t CefNowFromSystemTraceTime | ( | ) |
Returns the current system trace time or, if none is defined, the current high-res time.
Can be used by clients to synchronize with the time information in trace events.