| // Copyright 2018 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "zircon_platform_handle.h" |
| |
| #include <lib/zx/handle.h> |
| |
| #include "platform_object.h" |
| #include "zircon_platform_port.h" |
| |
| namespace magma { |
| |
| bool ZirconPlatformHandle::GetCount(uint32_t* count_out) { |
| zx_info_handle_count_t info; |
| zx_status_t status = |
| zx_object_get_info(get(), ZX_INFO_HANDLE_COUNT, &info, sizeof(info), nullptr, nullptr); |
| if (status != ZX_OK) |
| return DRETF(false, "zx_object_get_info failed"); |
| |
| *count_out = info.handle_count; |
| return true; |
| } |
| |
| bool ZirconPlatformHandle::WaitAsync(PlatformPort* port, uint64_t* key_out) { |
| if (!PlatformObject::IdFromHandle(get(), key_out)) |
| return DRET_MSG(false, "IdFromHandle failed"); |
| |
| auto zircon_port = static_cast<ZirconPlatformPort*>(port); |
| zx_status_t status = |
| handle_.wait_async(zircon_port->zx_port(), *key_out, |
| ZX_CHANNEL_READABLE | ZX_CHANNEL_PEER_CLOSED, ZX_WAIT_ASYNC_ONCE); |
| if (status != ZX_OK) |
| return DRETF(false, "wait_async failed: %d", status); |
| |
| return true; |
| } |
| |
| // static |
| bool PlatformHandle::duplicate_handle(uint32_t handle_in, uint32_t* handle_out) { |
| zx_status_t status = zx_handle_duplicate(handle_in, ZX_RIGHT_SAME_RIGHTS, handle_out); |
| if (status != ZX_OK) |
| return DRETF(false, "zx_handle_duplicate failed: %d", status); |
| return true; |
| } |
| |
| bool PlatformHandle::SupportsGetCount() { return true; } |
| |
| std::unique_ptr<PlatformHandle> PlatformHandle::Create(uint32_t handle) { |
| return std::make_unique<ZirconPlatformHandle>(zx::handle(handle)); |
| } |
| |
| } // namespace magma |
