56 lines
1.6 KiB
C++
56 lines
1.6 KiB
C++
#include "syscall/thread.h"
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#include "capability/capability.h"
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#include "debug/debug.h"
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#include "scheduler/scheduler.h"
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namespace {
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bool IsKernel(uint64_t addr) { return (addr & 0xFFFF'8000'0000'0000); }
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} // namespace
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glcr::ErrorCode ThreadCreate(ZThreadCreateReq* req) {
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auto& curr_proc = gScheduler->CurrentProcess();
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auto cap = curr_proc.GetCapability(req->proc_cap);
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RET_ERR(ValidateCapability<Process>(cap, kZionPerm_SpawnThread));
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auto parent_proc = cap->obj<Process>();
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auto thread = parent_proc->CreateThread();
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*req->thread_cap = curr_proc.AddNewCapability(thread);
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return glcr::OK;
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}
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glcr::ErrorCode ThreadStart(ZThreadStartReq* req) {
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auto& curr_proc = gScheduler->CurrentProcess();
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auto cap = curr_proc.GetCapability(req->thread_cap);
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RET_ERR(ValidateCapability<Thread>(cap, kZionPerm_Write));
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auto thread = cap->obj<Thread>();
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if (IsKernel(req->entry) || IsKernel(req->arg1) || IsKernel(req->arg2)) {
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dbgln("Thread start invalid arg: rip {x}, rdi {x}, rsi {x}", req->entry,
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req->arg1, req->arg2);
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return glcr::INVALID_ARGUMENT;
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}
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thread->Start(req->entry, req->arg1, req->arg2);
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return glcr::OK;
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}
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glcr::ErrorCode ThreadExit(ZThreadExitReq*) {
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auto curr_thread = gScheduler->CurrentThread();
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curr_thread->Exit();
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panic("Returned from thread exit");
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UNREACHABLE
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}
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glcr::ErrorCode ThreadWait(ZThreadWaitReq* req) {
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auto& curr_proc = gScheduler->CurrentProcess();
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auto cap = curr_proc.GetCapability(req->thread_cap);
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RET_ERR(ValidateCapability<Thread>(cap, kZionPerm_Read));
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auto thread = cap->obj<Thread>();
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thread->Wait();
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return glcr::OK;
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}
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