int MoviePvp::checkpointWrite(const char * cpDir){
int status = ImagePvp::checkpointWrite(cpDir);
parent->writeArrayToFile(cpDir, getName(), "FrameNumState", frameNumbers, parent->getNBatch());
//Only do a checkpoint TimestampState if there exists a timestamp file
if (timestampFile) {
long timestampFilePos = getPV_StreamFilepos(timestampFile);
parent->writeScalarToFile(cpDir, getName(), "TimestampState", timestampFilePos);
}
return status;
}
//This function takes care of rewinding for frame files
const char * Movie::advanceFileName(int batchIdx) {
// IMPORTANT!! This function should only be called by getNextFileName(int), and only by the root process
assert(parent->columnId()==0);
//Restore position of batch Idx
PV_fseek(filenamestream, batchPos[batchIdx], SEEK_SET);
int c;
size_t maxlen = PV_PATH_MAX;
bool reset = false;
// Ignore blank lines
bool hasrewound = false;
bool lineisblank = true;
while(lineisblank) {
// if at end of file (EOF), rewind
if ((c = fgetc(filenamestream->fp)) == EOF) {
PV_fseek(filenamestream, 0L, SEEK_SET);
frameNumbers[0] = -1;
fprintf(stderr, "Movie %s: EOF reached, rewinding file \"%s\"\n", name, inputPath);
if (hasrewound) {
fprintf(stderr, "Movie %s: filenamestream \"%s\" does not have any non-blank lines.\n", name, filenamestream->name);
exit(EXIT_FAILURE);
}
hasrewound = true;
reset = true;
}
else {
ungetc(c, filenamestream->fp);
}
//Always do at least once
int loopCount = 0;
do{
char * path = fgets(inputfile, maxlen, filenamestream->fp);
if (path != NULL) {
filenamestream->filepos += strlen(path);
path[PV_PATH_MAX-1] = '\0';
size_t len = strlen(path);
if (len > 0) {
if (path[len-1] == '\n') {
path[len-1] = '\0';
len--;
}
}
for (size_t n=0; n<len; n++) {
if (!isblank(path[n])) {
frameNumbers[batchIdx]++;
lineisblank = false;
break;
}
}
loopCount++;
}
}while(resetToStartOnLoop && reset && loopCount < startFrameIndex[batchIdx]);
assert(strlen(inputfile)>(size_t) 0);
// assert(inputfile && strlen(inputfile)>(size_t) 0);
// current version of clang generates a warning since inputfile is a member variable declared as an array and therefore always non-null.
// Keeping the line in case inputfile is changed to be malloc'd instead of declared as an array.
char * expandedpath = expandLeadingTilde(inputfile);
if (strlen(expandedpath)>=PV_PATH_MAX) {
fprintf(stderr, "Movie \"%s\": input line \"%s\" from imageListPath is too long.\n", name, expandedpath);
exit(EXIT_FAILURE);
}
strncpy(inputfile, expandedpath, PV_PATH_MAX);
free(expandedpath);
}
//Save batch position
batchPos[batchIdx] = getPV_StreamFilepos(filenamestream);
return inputfile;
}
