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Add compression_level parameter to dump xyz/gz and local/gz

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This commit is contained in:
Richard Berger
2020-08-31 15:00:57 -04:00
parent 443a817152
commit a0f82a4b18
4 changed files with 57 additions and 4 deletions
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27
src/COMPRESS/dump_local_gz.cpp
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@ -17,6 +17,7 @@
#include "update.h"
#include <cstring>
#include <fmt/format.h>
using namespace LAMMPS_NS;
@ -25,6 +26,8 @@ DumpLocalGZ::DumpLocalGZ(LAMMPS *lmp, int narg, char **arg) :
{
gzFp = NULL;
compression_level = Z_BEST_COMPRESSION;
if (!compressed)
error->all(FLERR,"Dump local/gz only writes compressed files");
}
@ -91,12 +94,15 @@ void DumpLocalGZ::openfile()
// each proc with filewriter = 1 opens a file
if (filewriter) {
std::string mode;
if (append_flag) {
gzFp = gzopen(filecurrent,"ab9");
mode = fmt::format("ab{}", compression_level);
} else {
gzFp = gzopen(filecurrent,"wb9");
mode = fmt::format("wb{}", compression_level);
}
gzFp = gzopen(filecurrent, mode.c_str());
if (gzFp == NULL) error->one(FLERR,"Cannot open dump file");
} else gzFp = NULL;
@ -171,3 +177,20 @@ void DumpLocalGZ::write()
}
}
/* ---------------------------------------------------------------------- */
int DumpLocalGZ::modify_param(int narg, char **arg)
{
int consumed = DumpLocal::modify_param(narg, arg);
if(consumed == 0) {
if (strcmp(arg[0],"compression_level") == 0) {
if (narg < 2) error->all(FLERR,"Illegal dump_modify command");
int min_level = Z_DEFAULT_COMPRESSION;
int max_level = Z_BEST_COMPRESSION;
if (compression_level < 0 || compression_level > max_level)
error->all(FLERR, fmt::format("Illegal dump_modify command: compression level must in the range of [{}, {}]", min_level, max_level));
return 2;
}
}
return consumed;
}