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[Solved]XML Rpc client will halt when server is not running [message #36611]

Wed, 20 June 2012 12:58

kasome
Messages: 78
Registered: July 2008
Location: Taiwan

Member

The following code will halt when XML RPC Server is not running.

#include <Core/Core.h>
#include <Core/XMLRpc/XMLRpc.h>

using namespace Upp;

namespace Upp { 
	extern bool HttpRequest_Trace__;
}

int main() {
#ifdef flagDEBUG
//	LogXmlRpcRequests();
//	HttpRequest_Trace__ = true;
	StdLogSetup( LOG_COUT | LOG_FILE );	
#endif

	Time serverTime;
	SetDateFormat( "%4d-%02d-%02d" );
	XmlRpcRequest call( "127.0.0.1:1234" );
	if( call("GetServerTime") >> serverTime ) {
		LOG( "Server Time =" + Upp::AsString(serverTime) );
	}
	else {
		LOG( Upp::Format("Error: %s", call.GetError()) );
	}

	return 0;
}

I try to trace the code, the problem seems to happen in the red block. (In upp\uppsrc\Core\Socket.cpp)

int TcpSocket::Put(const char *s, int length)
{
	LLOG("Put " << socket << ": " << length);
	ASSERT(IsOpen());
	if(length < 0 && s)
		length = (int)strlen(s);
	if(!s || length <= 0 || IsError() || IsAbort())
		return 0;
	done = 0;
	bool peek = false;
	int end_time = GetEndTime();

	while(done < length) {
		if(peek && !Wait(WAIT_WRITE, end_time))
			return done;
		peek = false;
		int count = Send(s + done, length - done);
		if(IsError() || timeout == 0 && count == 0 && peek)
			return done;
		if(count > 0)
			done += count;
		else
			peek = true;
	}

	LLOG("//Put() -> " << done);
	return done;
}

I modify the code from (In upp\uppsrc\Core\Socket.cpp)

bool TcpSocket::WouldBlock()
{
	int c = GetErrorCode();
#ifdef PLATFORM_POSIX
	return c == SOCKERR(EWOULDBLOCK) || c == SOCKERR(EAGAIN);
#endif
#ifdef PLATFORM_WIN32
	return c == SOCKERR(EWOULDBLOCK) || c == SOCKERR(ENOTCONN);
#endif
}

bool TcpSocket::WouldBlock()
{
	int c = GetErrorCode();
#ifdef PLATFORM_POSIX
	return c == SOCKERR(EWOULDBLOCK) || c == SOCKERR(EAGAIN);
#endif
#ifdef PLATFORM_WIN32
	return c == SOCKERR(EWOULDBLOCK) || c != SOCKERR(ENOTCONN);
#endif
}

I hope that will fix the problem.

[Updated on: Wed, 18 July 2012 02:26]

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