Retro68/LaunchAPPL/Client/StreamBasedLauncher.cc

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#include "StreamBasedLauncher.h"
#include "Stream.h"
#include "ServerProtocol.h"
#include <iostream>
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#include <sstream>
#include <arpa/inet.h>
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StreamBasedLauncher::StreamBasedLauncher(boost::program_options::variables_map &options)
: Launcher(options)
{
if(options.count("upgrade-server"))
upgradeMode = true;
}
StreamBasedLauncher::~StreamBasedLauncher()
{
}
void StreamBasedLauncher::SetupStream(WaitableStream* aStream, Stream* wrapped)
{
this->stream = aStream;
this->rStream = wrapped ? wrapped : aStream;
}
ssize_t StreamBasedLauncher::read(void *p0, size_t n)
{
uint8_t* p = (uint8_t*)p0;
size_t gotBytes = rStream->read(p, n);
while(gotBytes < n)
{
rStream->flushWrite();
stream->wait();
gotBytes += rStream->read(p + gotBytes, n - gotBytes);
}
return gotBytes;
}
void StreamBasedLauncher::write(const void *p, size_t n)
{
while(!rStream->readyToWrite())
stream->wait();
rStream->write(p, n);
}
bool StreamBasedLauncher::Go(int timeout)
{
uint32_t tmp;
{
RemoteCommand cmd = upgradeMode ? RemoteCommand::upgradeLauncher : RemoteCommand::launchApp;
write(&cmd, 1);
write(std::string(app.type).data(), 4);
write(std::string(app.creator).data(), 4);
std::ostringstream rsrcOut;
app.resources.writeFork(rsrcOut);
std::string rsrc = rsrcOut.str();
std::string& data = app.data;
std::cerr << "Transferring " << (data.size() + rsrc.size() + 1023) / 1024 << " KB." << std::endl;
tmp = htonl(data.size());
write(&tmp, 4);
tmp = htonl(rsrc.size());
write(&tmp, 4);
write(data.data(), data.size());
write(rsrc.data(), rsrc.size());
}
while(!rStream->allDataArrived())
stream->wait();
std::cerr << "Running Appliation..." << std::endl;
read(&tmp, 4);
uint32_t result = ntohl(tmp);
std::cerr << "Finished (result = " << result << ")." << std::endl;
if(result == 0)
{
read(&tmp, 4);
uint32_t size = ntohl(tmp);
outputBytes.resize(size);
if(size > 0)
read(outputBytes.data(), size);
}
return result == 0;
}
void StreamBasedLauncher::DumpOutput()
{
std::cout.write(outputBytes.data(), outputBytes.size());
}