struct execResult_t execGetReturnCode(const char **aArguments) {
struct execResult_t execResult;
char **argcopy = argCopy(aArguments);
pid_t pid;
int status;
memset(&execResult, 0, sizeof(execResult));
execResult.success = true;
pid = fork();
if (pid == -1) {
perror("fork");
execResult.success = false;
return execResult;
}
if (pid > 0) {
char commandLineBuffer[256];
convertCommandLine(commandLineBuffer, sizeof(commandLineBuffer), aArguments);
logmsg(LLVL_DEBUG, "Subprocess [PID %d]: Will execute '%s'\n", pid, commandLineBuffer);
}
if (pid == 0) {
/* Child */
if (getLogLevel() < LLVL_DEBUG) {
/* Shut up the child if user did not request debug output */
close(1);
close(2);
}
execvp(aArguments[0], argcopy);
perror("execvp");
logmsg(LLVL_ERROR, "Execution of %s in forked child process failed at execvp: %s\n", aArguments[0], strerror(errno));
/* Exec failed, terminate chExec failed, terminate child process
* (parent will catch this as the return code) */
exit(EXIT_FAILURE);
}
if (waitpid(pid, &status, 0) == (pid_t)-1) {
perror("waitpid");
execResult.success = false;
return execResult;
}
freeArgCopy(argcopy);
execResult.returnCode = WEXITSTATUS(status);
logmsg(LLVL_DEBUG, "Subprocess [PID %d]: %s returned %d\n", pid, aArguments[0], execResult.returnCode);
return execResult;
}
/** Loop over all filenames in replica_filenames, set up TrajectoryIO. */
int TrajIOarray::SetupIOarray(ArgList& argIn, TrajFrameCounter& counter,
CoordinateInfo& cInfo, Topology* trajParm)
{
// Sanity check
if (!IOarray_.empty()) {
mprinterr("Internal Error: SetupIOarray() has been called twice.\n");
return 1;
}
// Save arguments that have not been processed so they can be passed
// to each replica in turn. Only the lowest replica will use argIn.
ArgList argCopy( argIn );
bool lowestRep = true;
int rep0Frames = TrajectoryIO::TRAJIN_UNK; // Total frames in replica 0
int totalFrames = TrajectoryIO::TRAJIN_UNK; // Total # frames to be read from ensemble
TrajectoryFile::TrajFormatType lastRepFmt = TrajectoryFile::UNKNOWN_TRAJ;
// Right now enforce that all replicas have the same metadata as lowest
// replica, e.g. if replica 0 has temperature, replica 1 does too etc.
for (File::NameArray::const_iterator repfile = replica_filenames_.begin();
repfile != replica_filenames_.end(); ++repfile)
{
// Detect format
TrajectoryFile::TrajFormatType repformat = TrajectoryFile::UNKNOWN_TRAJ;
TrajectoryIO* replica0 = TrajectoryFile::DetectFormat( *repfile, repformat );
if ( replica0 == 0 ) {
mprinterr("Error: Could not set up replica file %s\n", repfile->full());
return 1;
}
if (repformat != lastRepFmt)
mprintf("\tReading '%s' as %s\n", repfile->full(), TrajectoryFile::FormatString(repformat));
lastRepFmt = repformat;
replica0->SetDebug( debug_ );
// Pushing replica0 here allows the destructor to handle it on errors
IOarray_.push_back( replica0 );
// Process format-specific read args. Do not exit on error in case
// replicas have different formats supporting different args.
if (lowestRep) {
replica0->processReadArgs( argIn );
} else {
ArgList argtmp( argCopy );
replica0->processReadArgs( argtmp );
}
// Set up replica for reading and get the number of frames.
int nframes = replica0->setupTrajin( *repfile, trajParm );
if (nframes == TrajectoryIO::TRAJIN_ERR) {
mprinterr("Error: Could not set up %s for reading.\n", repfile->full());
return 1;
}
// TODO: Do not allow unknown number of frames?
if (lowestRep) {
cInfo = replica0->CoordInfo();
rep0Frames = nframes;
totalFrames = nframes;
if (cInfo.ReplicaDimensions().Ndims() > 0) {
mprintf("\tReplica dimensions:\n");
for (int rd = 0; rd < cInfo.ReplicaDimensions().Ndims(); rd++)
mprintf("\t\t%i: %s\n", rd+1, cInfo.ReplicaDimensions().Description(rd));
}
} else {
// Check total frames in this replica against lowest rep.
if (nframes != rep0Frames)
mprintf("Warning: Replica %s frames (%i) does not match # frames in first replica (%i).\n",
repfile->base(), nframes, rep0Frames);
//if (repframes < 0) {
// mprinterr("Error: RemdTraj: Unknown # of frames in replica.\n");
// return 1;
//}
if (nframes < totalFrames) {
totalFrames = nframes;
mprintf("Warning: Setting total # of frames to read from replica ensemble to %i\n",
totalFrames);
}
// Check box info against lowest rep.
if ( replica0->CoordInfo().HasBox() != cInfo.HasBox() ) {
mprinterr("Error: Replica %s box info does not match first replica.\n",
repfile->full());
return 1;
}
// TODO: Check specific box type
// Check velocity info against lowest rep.
if ( replica0->CoordInfo().HasVel() != cInfo.HasVel() ) {
mprinterr("Error: Replica %s velocity info does not match first replica.\n",
repfile->full());
return 1;
}
// Check # dimensions and types against lowest rep
if ( replica0->CoordInfo().ReplicaDimensions() != cInfo.ReplicaDimensions() ) {
mprinterr("Error: Replica %s dimension info does not match first replica.\n",
repfile->full());
ReplicaDimArray const& thisRepDims = replica0->CoordInfo().ReplicaDimensions();
for (int rd = 0; rd < thisRepDims.Ndims(); rd++)
mprinterr("\t\t%i: %s\n", rd+1, thisRepDims.Description(rd));
return 1;
}
// If temperature/time info does not match set to false.
if (cInfo.HasTemp() != replica0->CoordInfo().HasTemp())
cInfo.SetTemperature( false );
if (cInfo.HasTime() != replica0->CoordInfo().HasTime())
cInfo.SetTime( false );
}
lowestRep = false;
}
// Check how many frames will actually be read
if (counter.CheckFrameArgs( totalFrames, argIn )) return 1;
// Check for errors.
if (IOarray_.empty()) {
mprinterr("Error: No replica trajectories set up.\n");
return 1;
}
if (IOarray_.size() != replica_filenames_.size()) { // SANITY CHECK
mprinterr("Error: Not all replica files were set up.\n");
return 1;
}
// Update ensemble size
cInfo.SetEnsembleSize( (int)IOarray_.size() );
if (debug_ > 0)
cInfo.PrintCoordInfo( replica_filenames_[0].full(), trajParm->c_str() );
return 0;
}
