server/src/main/c++/nativeMap/util.cc

/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements.  See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License.  You may obtain a copy of the License at
*
*     http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>

#include "util.h"

size_t getMemUsage(){
	pid_t pid = getpid();

	char cmd[1000];

	sprintf(cmd, "cat /proc/%d/status | grep VmData |  awk '{print $2}'", pid);


	FILE *f = popen(cmd, "r");

	int dataSize;
	
	fscanf(f, "%d\n", &dataSize);

	pclose(f);

	return (size_t)dataSize * (size_t)1024;
}