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#include "Process.class.h"
#include <TaskManager/Task.ns.h>
#include <MemoryManager/PhysMem.ns.h>
#include <VFS/File.class.h>
#include <Linker/Binary.proto.h>
#include <Process.iface.h>
#include <UserManager/Usr.ns.h>
#include <VirtualTerminal.iface.h>
#include <SyscallManager/Res.ns.h>
namespace Mem {
extern Heap kheap;
}
Process::Process() : Ressource(PRIF_OBJTYPE, m_callTable) { //Private constructor, does nothing
}
Process* Process::createKernel(String cmdline, VirtualTerminal *vt) {
Process* p = new Process();
p->m_pid = 0;
p->m_ppid = 0;
p->m_arguments = cmdline.split(" ");
p->m_retval = 0;
p->m_state = P_RUNNING;
p->m_pagedir = kernelPageDirectory;
p->m_uid = 0;
p->m_userHeap = &Mem::kheap;
p->m_inVT = p->m_outVT = vt;
Thread* t = new Thread();
t->m_process = p;
t->m_state = T_RUNNING;
t->m_isKernel = true;
t->m_kernelStack.addr = 0;
t->m_kernelStack.size = 0;
p->registerThread(t);
Task::registerProcess(p);
Task::registerThread(t);
return p;
}
Process* Process::run(String filename, u32int uid) {
File file(filename, FM_READ, (FSNode*)Task::currProcess()->getCwd());
if (!file.valid()) return 0;
Binary* b = Binary::load(file);
if (b == 0) return 0;
Process* p = new Process(filename, uid);
thread_entry_t e = b->toProcess(p);
delete b;
if (e != 0) {
new Thread(p, e, 0);
return p;
} else {
delete p;
return 0;
}
}
Process::Process(String binfile, u32int uid) : Ressource(PRIF_OBJTYPE, m_callTable), m_arguments() {
m_pid = Task::nextPid();
m_ppid = Task::currProcess()->getPid();
m_arguments.push(binfile);
m_retval = 0;
m_state = P_STARTING;
m_uid = uid;
m_autodelete = false;
m_cwd = Task::currProcess()->getCwd();
m_inVT = Task::currProcess()->getInVT();
m_outVT = Task::currProcess()->getOutVT();
m_fileDescriptors = 0;
//Create page directory and user heap
m_pagedir = new PageDirectory(kernelPageDirectory);
m_pagedir->switchTo();
m_userHeap = new Heap();
u32int heapIdxSize = PhysMem::total() * 16 + 0x10000;
m_userHeap->create(USERHEAPSTART, USERHEAPINITSIZE + heapIdxSize, heapIdxSize, m_pagedir, true, true);
Task::registerProcess(this);
}
Process::~Process() {
exit(); //Kill all threads
delete m_pagedir;
delete m_userHeap;
Task::unregisterProcess(this);
}
void Process::start() {
if (m_state == P_STARTING) m_state = P_RUNNING;
}
void Process::pushArg(const String& arg) {
m_arguments.push(arg);
}
void Process::exit() {
for (u32int i = 0; i < m_threads.size(); i++) {
delete m_threads[i];
}
m_threads.clear();
while (m_fileDescriptors != 0) {
m_fileDescriptors->v()->close(false);
delete m_fileDescriptors->v();
m_fileDescriptors = m_fileDescriptors->delThis();
}
m_state = P_FINISHED;
}
void Process::registerThread(Thread* t) {
if (m_state != P_FINISHED)
m_threads.push(t);
}
void Process::threadFinishes(Thread* thread, u32int retval) {
// If it is the main thread of the process, or if it pagefaulted
if (thread == m_threads[0] or retval == E_PAGEFAULT or retval == E_EXIT) {
m_retval = retval;
if (m_autodelete) {
delete this;
} else {
exit();
}
} else {
//Simply unregister thread
for (u32int i = 0; i < m_threads.size(); i++) {
if (m_threads[i] == thread) {
m_threads[i] = m_threads.back();
m_threads.pop();
break;
}
}
delete thread;
}
}
void Process::registerFileDescriptor(File* fd) {
m_fileDescriptors = m_fileDescriptors->cons(fd);
}
void Process::unregisterFileDescriptor(File* fd) {
m_fileDescriptors = m_fileDescriptors->removeOnce(fd);
}
PageDirectory* Process::getPagedir() {
return m_pagedir;
}
VirtualTerminal* Process::getInVT() {
return m_inVT;
}
VirtualTerminal* Process::getOutVT() {
return m_outVT;
}
void Process::setInVT(VirtualTerminal* vt) {
m_inVT = vt;
}
void Process::setOutVT(VirtualTerminal* vt) {
m_outVT = vt;
}
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