| // Copyright 2017 The Fuchsia Authors |
| // |
| // Use of this source code is governed by a MIT-style |
| // license that can be found in the LICENSE file or at |
| // https://opensource.org/licenses/MIT |
| |
| #include <err.h> |
| #include <inttypes.h> |
| #include <trace.h> |
| |
| #include <lib/ktrace.h> |
| |
| #include <object/handle_owner.h> |
| #include <object/handles.h> |
| #include <object/process_dispatcher.h> |
| #include <object/timer_dispatcher.h> |
| |
| #include <fbl/alloc_checker.h> |
| #include <fbl/ref_ptr.h> |
| |
| #include <zircon/types.h> |
| |
| #include "syscalls_priv.h" |
| |
| zx_status_t sys_timer_create(uint32_t options, uint32_t clock_id, user_out_ptr<zx_handle_t> out) { |
| if (clock_id != ZX_CLOCK_MONOTONIC) |
| return ZX_ERR_INVALID_ARGS; |
| |
| auto up = ProcessDispatcher::GetCurrent(); |
| zx_status_t result = up->QueryPolicy(ZX_POL_NEW_TIMER); |
| if (result != ZX_OK) |
| return result; |
| |
| fbl::RefPtr<Dispatcher> dispatcher; |
| zx_rights_t rights; |
| |
| result = TimerDispatcher::Create(options, &dispatcher, &rights); |
| |
| if (result != ZX_OK) |
| return result; |
| |
| HandleOwner handle(MakeHandle(fbl::move(dispatcher), rights)); |
| if (!handle) |
| return ZX_ERR_NO_MEMORY; |
| |
| zx_handle_t hv = up->MapHandleToValue(handle); |
| |
| if (out.copy_to_user(hv) != ZX_OK) |
| return ZX_ERR_INVALID_ARGS; |
| |
| up->AddHandle(fbl::move(handle)); |
| return ZX_OK; |
| } |
| |
| zx_status_t sys_timer_set( |
| zx_handle_t handle, zx_time_t deadline, zx_duration_t slack) { |
| auto up = ProcessDispatcher::GetCurrent(); |
| |
| fbl::RefPtr<TimerDispatcher> timer; |
| zx_status_t status = up->GetDispatcherWithRights(handle, ZX_RIGHT_WRITE, &timer); |
| if (status != ZX_OK) |
| return status; |
| |
| return timer->Set(deadline, slack); |
| } |
| |
| |
| zx_status_t sys_timer_cancel(zx_handle_t handle) { |
| auto up = ProcessDispatcher::GetCurrent(); |
| |
| fbl::RefPtr<TimerDispatcher> timer; |
| zx_status_t status = up->GetDispatcherWithRights(handle, ZX_RIGHT_WRITE, &timer); |
| if (status != ZX_OK) |
| return status; |
| |
| return timer->Cancel(); |
| } |