/**
* Returns the process which is bound to the given address. This returns null if there isn't any
* process with the given binding.
*
* @param binding The address to inspect.
* @return The process which binds itself to the given address.
*/
public Process getProcess(Address binding) {
for (Process process : getAllProcesses()) {
if (process.getExecutor().getPacketListener(binding) != null) {
return process;
}
}
return null;
}
/**
* Calculates and returns a new pid for a new process.
*
* @return The calculated pid.
*/
public synchronized int requestPid() {
List<Integer> pids = new ArrayList<Integer>();
for (Process process : getAllProcesses()) {
pids.add(process.getPid());
}
int pid = 0;
while (pids.contains(pid)) {
pid++;
}
return pid;
}
/**
* Returns a list of all current running processes.
*
* @return A list of all current running processes.
*/
public List<Process> getAllProcesses() {
List<Process> processes = new ArrayList<Process>();
processes.add(rootProcess);
processes.addAll(rootProcess.getAllChildren());
return processes;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + (rootProcess == null ? 0 : rootProcess.hashCode());
return result;
}
/**
* Changes the running state of the process manager.
*
* @param running True if the process manager is running, false if not.
*/
public void setRunning(boolean running) {
if (running) {
rootProcess =
new Process(
host, null, 0, host.getFileSystemManager().getFile("C:/system/boot/kernel"), null);
} else {
rootProcess.interrupt(true);
}
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
ProcessManager other = (ProcessManager) obj;
if (rootProcess == null) {
if (other.rootProcess != null) {
return false;
}
} else if (!rootProcess.equals(other.rootProcess)) {
return false;
}
return true;
}