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[zion] Add a thread wait syscall

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This commit is contained in:
Drew Galbraith 2023-06-22 02:17:50 -07:00
parent f0e8ce14a4
commit 36d82370c1
9 changed files with 45 additions and 8 deletions
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1
zion/syscall/syscall.cpp
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@ -55,6 +55,7 @@ extern "C" z_err_t SyscallHandler(uint64_t call_id, void* req) {
CASE(ThreadCreate);
CASE(ThreadStart);
CASE(ThreadExit);
CASE(ThreadWait);
// syscall/address_space.h
CASE(AddressSpaceMap);
// syscall/memory_object.h

17
zion/syscall/thread.cpp
View file

@ -3,18 +3,18 @@
#include "capability/capability.h"
#include "scheduler/scheduler.h"
z_err_t ThreadCreate(ZThreadCreateReq* req) {
glcr::ErrorCode ThreadCreate(ZThreadCreateReq* req) {
auto& curr_proc = gScheduler->CurrentProcess();
auto cap = curr_proc.GetCapability(req->proc_cap);
RET_ERR(ValidateCapability<Process>(cap, ZC_PROC_SPAWN_THREAD));
auto parent_proc = cap->obj<Process>();
auto thread = parent_proc->CreateThread();
*req->thread_cap = curr_proc.AddNewCapability(thread, ZC_WRITE);
*req->thread_cap = curr_proc.AddNewCapability(thread, ZC_WRITE | ZC_READ);
return glcr::OK;
}
z_err_t ThreadStart(ZThreadStartReq* req) {
glcr::ErrorCode ThreadStart(ZThreadStartReq* req) {
auto& curr_proc = gScheduler->CurrentProcess();
auto cap = curr_proc.GetCapability(req->thread_cap);
RET_ERR(ValidateCapability<Thread>(cap, ZC_WRITE));
@ -25,8 +25,17 @@ z_err_t ThreadStart(ZThreadStartReq* req) {
return glcr::OK;
}
z_err_t ThreadExit(ZThreadExitReq*) {
glcr::ErrorCode ThreadExit(ZThreadExitReq*) {
auto curr_thread = gScheduler->CurrentThread();
curr_thread->Exit();
panic("Returned from thread exit");
}
glcr::ErrorCode ThreadWait(ZThreadWaitReq* req) {
auto& curr_proc = gScheduler->CurrentProcess();
auto cap = curr_proc.GetCapability(req->thread_cap);
RET_ERR(ValidateCapability<Thread>(cap, ZC_READ));
auto thread = cap->obj<Thread>();
thread->Wait();
return glcr::OK;
}

9
zion/syscall/thread.h
View file

@ -1,7 +1,10 @@
#pragma once
#include <glacier/status/error.h>
#include "include/zcall.h"
z_err_t ThreadCreate(ZThreadCreateReq* req);
z_err_t ThreadStart(ZThreadStartReq* req);
z_err_t ThreadExit(ZThreadExitReq*);
glcr::ErrorCode ThreadCreate(ZThreadCreateReq* req);
glcr::ErrorCode ThreadStart(ZThreadStartReq* req);
glcr::ErrorCode ThreadExit(ZThreadExitReq*);
glcr::ErrorCode ThreadWait(ZThreadWaitReq* req);