| // Copyright 2016 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 "magma_util/dlog.h" |
| #include "magma_util/macros.h" |
| #include "platform_futex.h" |
| #include <errno.h> |
| |
| extern "C" { |
| |
| int anv_platform_futex_wake(uint32_t* addr, int count) |
| { |
| if (!magma::PlatformFutex::Wake(addr, count)) |
| return DRET_MSG(-1, "Wake failed"); |
| return 0; |
| } |
| |
| int anv_platform_futex_wait(uint32_t* addr, int32_t value) |
| { |
| magma::PlatformFutex::WaitResult result; |
| if (!magma::PlatformFutex::WaitForever(addr, value, &result)) |
| return DRET_MSG(-EINVAL, "WaitForever failed"); |
| if (result == magma::PlatformFutex::WaitResult::RETRY) |
| return -EAGAIN; |
| assert(result == magma::PlatformFutex::WaitResult::AWOKE); |
| return 0; |
| } |
| |
| } // extern "C" |
