Add compression_level parameter to dump atom gz (e0439ac9) · Commits · 郑智淋 / lammps

src/COMPRESS/dump_atom_gz.cpp

+24 −2

Original line number	Diff line number	Diff line
		@@ -15,8 +15,10 @@
		#include "domain.h"
		#include "error.h"
		#include "update.h"
		#include "force.h"

		#include <cstring>
		#include <fmt/format.h>

		using namespace LAMMPS_NS;

		@@ -25,6 +27,8 @@ DumpAtomGZ::DumpAtomGZ(LAMMPS lmp, int narg, char *arg) :
		{
		gzFp = NULL;

		compression_level = 9;

		if (!compressed)
		error->all(FLERR,"Dump atom/gz only writes compressed files");
		}
		@@ -89,12 +93,15 @@ void DumpAtomGZ::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;

		@@ -156,3 +163,18 @@ void DumpAtomGZ::write()
		}
		}

		/* ---------------------------------------------------------------------- */

		int DumpAtomGZ::modify_param(int narg, char **arg)
		{
		int consumed = DumpAtom::modify_param(narg, arg);
		if(consumed == 0) {
		if (strcmp(arg[0],"compression_level") == 0) {
		if (narg < 2) error->all(FLERR,"Illegal dump_modify command");
		compression_level = force->inumeric(FLERR,arg[1]);
		if (compression_level <= 0) error->all(FLERR,"Illegal dump_modify command");
		return 2;
		}
		}
		return consumed;
		}

+3 −0

Original line number	Diff line number	Diff line
		@@ -31,12 +31,15 @@ class DumpAtomGZ : public DumpAtom {
		virtual ~DumpAtomGZ();

		protected:
		int compression_level;
		gzFile gzFp; // file pointer for the compressed output stream

		virtual void openfile();
		virtual void write_header(bigint);
		virtual void write_data(int, double *);
		virtual void write();

		virtual int modify_param(int, char **);
		};

		}