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[kernel] Create process kernel object

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Re-implent the concept of processes as separate from threads, and as a
kobject API object. Also improve scheduler::prune which was doing some
unnecessary iterations.
This commit is contained in:
Justin C. Miller
2020-07-19 16:47:18 -07:00
parent f4cbb9498f
commit ef5c333030
8 changed files with 207 additions and 80 deletions
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8
src/kernel/objects/thread.cpp
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@@ -1,18 +1,20 @@
#include "j6/signals.h"
#include "objects/thread.h"
#include "objects/process.h"
#include "scheduler.h"
static constexpr j6_signal_t thread_default_signals = 0;
thread::thread(page_table *pml4, priority_t pri) :
thread::thread(process &parent, uint8_t pri) :
kobject(kobject::type::thread, thread_default_signals),
m_parent(parent),
m_state(state::loading),
m_wait_type(wait_type::none),
m_wait_data(0),
m_wait_obj(0)
{
TCB *tcbp = tcb();
tcbp->pml4 = pml4;
tcbp->pml4 = parent.pml4();
tcbp->priority = pri;
tcbp->thread_data = this;
set_state(state::ready);
@@ -74,8 +76,6 @@ thread::wake_on_result(kobject *obj, j6_status_t result)
void
thread::exit(uint32_t code)
{
// TODO: check if the process containing this thread
// needs to exit and clean up.
m_return_code = code;
set_state(state::exited);
clear_state(state::ready);