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Fix for when not producing local output; that hung.

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* origin/topic/robin/dataseries:
  Moving trace for rotation test into traces directory.
  Fixing a rotation race condition at termination.
  Portability fixes.
  Extending DS docs with some examples.
  Updating doc.
  Fixing pack_scale and time-as-int.
  Adding format specifier to DS spec to print out double as %.6f.
  DataSeries updates and fixes.
  DataSeries tuning.
  Tweaking DataSeries support.
  Extending log post-processor call to include the name of the writer.
  Removing an unnecessary const cast.
  DataSeries TODO list with open issues/questions.
  Starting DataSeries HowTo.
  Additional test output canonification for ds2txt's timestamps.
  In threads, an internal error now immediately aborts.
  DataSeries cleanup.
  Working on DataSeries support.
  Merging in DataSeries support from topic/gilbert/logging.
  Fixing  threads' DoFinish() method.
This commit is contained in:
Robin Sommer 2012-05-17 12:38:47 -07:00
commit 7cc863c5fc
52 changed files with 1844 additions and 133 deletions
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39
src/logging/WriterBackend.h
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@ -101,15 +101,6 @@ public:
*/
bool Rotate(string rotated_path, double open, double close, bool terminating);
/**
* Finishes writing to this logger in a regularl fashion. Must not be
* called if an error has been indicated earlier. After calling this,
* no further writing must be performed.
*
* @return False if an error occured.
*/
bool Finish();
/**
* Disables the frontend that has instantiated this backend. Once
* disabled,the frontend will not send any further message over.
@ -174,7 +165,17 @@ public:
*/
string Render(const threading::Value::subnet_t& subnet) const;
/** Helper method to render a double in Bro's standard precision.
*
* @param d The double.
*
* @return An ASCII representation of the double.
*/
string Render(double d) const;
protected:
friend class FinishMessage;
/**
* Writer-specific intialization method.
*
@ -272,26 +273,18 @@ protected:
bool terminating) = 0;
/**
* Writer-specific method implementing log output finalization at
* termination. Not called when any of the other methods has
* previously signaled an error, i.e., executing this method signals
* a regular shutdown of the writer.
* Writer-specific method called just before the threading system is
* going to shutdown.
*
* A writer implementation must override this method but it can just
* ignore calls if flushing doesn't align with its semantics.
*
* If the method returns false, it will be assumed that a fatal error
* has occured that prevents the writer from further operation; it
* will then be disabled and eventually deleted. When returning
* false, an implementation should also call Error() to indicate what
* happened.
* This method can be overridden but one must call
* WriterBackend::DoFinish().
*/
virtual bool DoFinish() = 0;
virtual bool DoFinish() { return MsgThread::DoFinish(); }
/**
* Triggered by regular heartbeat messages from the main thread.
*
* This method can be overridden but once must call
* This method can be overridden but one must call
* WriterBackend::DoHeartbeat().
*/
virtual bool DoHeartbeat(double network_time, double current_time);