[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Stopping and resuming a sax parser?
Bernd G. wrote: > Hi, > > is there a way (an API) to stop and resume a SAX parser? > > I'm writing a trace feeder for an event driven simulation in C++. Doing this, > I have the problem that there are two concurrent control flows: one of the > simulation calendar generating simulation events saying "read the next > element from the trace file" and the other of the SAX parser running through > the XML document and generating the well known SAX events. > > One solution would be to put the SAX parser into an own thread and block it in > the StartElement method by synchronizing it with simulation events using > mutex variables. > > A nicer solution would be, if I could stop and resume the SAX parser by > methods called from within the StartElement method and from outside. I would > prefer such a solution since the trace files are expected to be really large, > i.e. with millions of elements, and I worry about the performance of so many > task changes. Depends on the SAX parser you are using. A SAX-like parser that implements this feature is Expat, http://www.libexpat.org. There are C++ SAX wrappers for it, but I am not sure if they expose this capability. Karl
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