Add source.

Author: ferhatgec

ProcessPlusPlus.hpp

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+/* MIT License
+#
+# Copyright (c) 2020 Ferhat Geçdoğan All Rights Reserved.
+# Distributed under the terms of the MIT License.
+#
+# */
+
+#ifndef PROCESS_PLUS_PLUS_HPP
+#define PROCESS_PLUS_PLUS_HPP
+
+#include <iostream>
+#include <sys/stat.h>
+#include <dirent.h>
+#include <bits/stdc++.h> 
+#include <list>
+
+
+namespace procplusplus {
+        std::ostream& operator<<(std::ostream& ostr, const std::list<int>& list) {
+            for (auto &i : list) 
+                ostr << i << "\n";
+            
+            return ostr;
+        }
+
+        /*std::list<int>&*/void GetPID() {
+                struct dirent *entryname;
+                struct stat filestat;
+                std::list<int> pid;
+                int line =0;
+                DIR *directory;
+                directory = opendir("/proc");
+    
+                if(directory == NULL) {
+                        std::cout << "Directory not found.\n";
+                }
+    
+                while ((entryname = readdir(directory))) {
+                        stat(entryname->d_name, &filestat);
+                        if(entryname->d_type == DT_DIR) {// DT_DIR -> directory
+                                if(strstr(entryname->d_name, ".")) {
+                                        // Null
+                                } else if(strstr(entryname->d_name, "..")){
+	                                // Null
+                        	} else {
+                        	    	int a = atoi(entryname->d_name);
+                        	    	if(a != 0)
+			                        pid.push_back(a);
+                                }
+                        }
+                }
+    
+                pid.sort(std::less<int>());
+    
+                std::cout << pid;
+    
+                closedir(directory);
+        }
+}
+
+#endif /* PROCESS_PLUS_PLUS_HPP */

make.sh

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+#!/bin/sh
+# Shebang line
+
+c++ -I. test.cpp -o test && ./test

test.cpp

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+/* MIT License
+#
+# Copyright (c) 2020 Ferhat Geçdoğan All Rights Reserved.
+# Distributed under the terms of the MIT License.
+#
+# */
+
+#include <iostream>
+#include <ProcessPlusPlus.hpp>
+
+/*
+        List all PIDs.
+*/
+int main(int argc, char** argv) {
+        std::cout << "PID:\n";
+        procplusplus::GetPID();
+    	return 0;
+}