Method startSession

src/utilities/fbtracemgr/traceMgrMain.cpp:117–174

}

void TraceSvcUtil::startSession(TraceSession& session, bool /*interactive*/)
{
	HalfStaticArray<UCHAR, 1024> buff(*getDefaultMemoryPool());
	UCHAR* p = NULL;
	long len = 0;

	FILE* file = NULL;

	try
	{
		const char* fileName = session.ses_config.c_str();
		file = os_utils::fopen(fileName, "rb");
		if (!file)
		{
			(Arg::Gds(isc_io_error) << Arg::Str("fopen") << Arg::Str(fileName) <<
				Arg::Gds(isc_io_open_err) << Arg::OsError()).raise();
		}

		fseek(file, 0, SEEK_END);
		len = ftell(file);
		if (len == 0)
		{
			(Arg::Gds(isc_io_error) << Arg::Str("fread") << Arg::Str(fileName) <<
				Arg::Gds(isc_io_read_err) << Arg::OsError()).raise();
		}

		fseek(file, 0, SEEK_SET);
		p = buff.getBuffer(len);

		if (fread(p, 1, len, file) != size_t(len))
		{
			(Arg::Gds(isc_io_error) << Arg::Str("fread") << Arg::Str(fileName) <<
				Arg::Gds(isc_io_read_err) << Arg::OsError()).raise();
		}
		fclose(file);
	}
	catch (const Exception&)
	{
		if (file)
			fclose(file);

		throw;
	}

	ClumpletWriter spb(ClumpletWriter::SpbStart, MAXBUF);

	spb.insertTag(isc_action_svc_trace_start);
	spb.insertBytes(isc_spb_trc_cfg, p, len);

	if (session.ses_name.hasData())
	{
		spb.insertBytes(isc_spb_trc_name,
			reinterpret_cast<const UCHAR*> (session.ses_name.c_str()),
			session.ses_name.length());
	}

	runService(spb.getBufferLength(), spb.getBuffer());
}