Added TaskManager app

engine/server/application/TaskManager/src/linux/ProcessSpawner.cpp

@@ -0,0 +1,167 @@
+#include "sharedFoundation/FirstSharedFoundation.h"
+#include "ProcessSpawner.h"
+#include <stdio.h>
+#include <signal.h>
+#include <unistd.h>
+#include <wait.h>
+
+#include <vector>
+
+uint32 ProcessSpawner::prefix;
+//-----------------------------------------------------------------------
+
+bool tokenize (const std::string & str, std::vector<std::string> & result)
+{
+	size_t end_pos = 0;
+	size_t start_pos = 0;
+
+	result.clear ();
+
+	for (;;)
+	{
+		if (end_pos >= str.size ())
+			break;
+
+		start_pos = str.find_first_not_of (' ', end_pos);
+
+		if (start_pos == str.npos) //lint !e1705
+			break;
+
+		//----------------------------------------------------------------------
+
+		if (str [start_pos] == '\"')
+		{
+			 if (++start_pos >= str.size ())
+				 break;
+			end_pos = str.find_first_of ('\"', start_pos);
+		}
+		else
+			end_pos = str.find_first_of (' ', start_pos);
+		
+		//----------------------------------------------------------------------
+					
+		if (start_pos == end_pos)
+			break;
+
+		if (end_pos == str.npos) //lint !e1705
+		{
+			result.push_back (str.substr (start_pos));
+			break;
+		}
+		else
+		{
+			result.push_back (str.substr (start_pos, end_pos - start_pos));
+		}
+		++start_pos;
+	}
+	
+	return true;
+}
+
+// ----------------------------------------------------------------------
+
+uint32 execute(const char * commandLine, char * const * parameters)
+{
+	DEBUG_REPORT_LOG(true, ("Now Attempting To Spawn %s\n", commandLine));
+	pid_t p;
+	// fork
+	p = fork();
+	if (p == 0)
+	{
+		// i am child
+		DEBUG_REPORT_LOG(true, ("Now Spawning %s\n", commandLine));
+
+		int result = execv(commandLine, parameters); //lint !e10 Expecting a function (huh?)
+		if (result == -1)
+		{
+			IGNORE_RETURN(perror("execv")); //lint !e10
+			_exit(0);
+		}
+	}
+	return p; //lint !e732 Loss of sign
+}
+
+// ----------------------------------------------------------------------
+
+void makeParameters(const std::vector<std::string> & parameters, std::vector<char *> & p)
+{
+ 	std::vector<std::string>::const_iterator i;
+	for(i = parameters.begin(); i != parameters.end(); ++i)
+	{
+		char * arg = new char[(*i).length() + 1];
+		strcpy(arg, (*i).c_str()); //lint !e64 !e534
+		p.push_back(arg);
+	}
+	p.push_back(NULL);
+}
+
+// ----------------------------------------------------------------------
+
+void freeParameters(std::vector<char *> & p)
+{
+	std::vector<char *>::iterator piter;
+	for(piter = p.begin(); piter != p.end(); ++piter)
+	{
+		char * arg = (*piter);
+		delete[] arg;
+	}
+}
+
+// ----------------------------------------------------------------------
+
+uint32 ProcessSpawner::execute(const std::string & commandLine, const std::vector<std::string> & parameters)
+{
+
+	std::vector<char *> p;
+	makeParameters(parameters, p);
+	
+	std::string c = "./";
+	c += commandLine;
+	uint32 pid = ::execute(c.c_str(), &p[0]);
+
+	freeParameters(p);
+		
+	return pid;
+}
+
+// ----------------------------------------------------------------------
+
+uint32 ProcessSpawner::execute(const std::string & commandLine)
+{
+	std::vector<std::string> parameters;
+	IGNORE_RETURN(tokenize(commandLine, parameters));
+	
+	std::vector<char *> p;
+	makeParameters(parameters, p);
+		
+	uint32 result = ::execute(p[0], &p[0]);
+
+	freeParameters(p);
+	
+	return result; 
+}
+// ----------------------------------------------------------------------
+
+bool ProcessSpawner::isProcessActive(uint32 pid)
+{
+	pid_t result = waitpid(static_cast<pid_t>(pid), 0, WNOHANG|WUNTRACED); 
+	return (result < 1);
+}
+
+// ----------------------------------------------------------------------
+
+void ProcessSpawner::kill(uint32 pid)
+{
+    IGNORE_RETURN(::kill(static_cast<int>(pid), SIGKILL));
+	int status;
+	IGNORE_RETURN(waitpid(static_cast<int>(pid), &status, 0));
+}
+
+// ----------------------------------------------------------------------
+
+void ProcessSpawner::forceCore(const unsigned long pid)
+{
+	IGNORE_RETURN(::kill(static_cast<int>(pid), SIGABRT));
+}
+
+// ----------------------------------------------------------------------