| /* |
| * Copyright (c) 2021, The Fuchsia Authors |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included |
| * in all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| * OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| |
| #ifndef MAGMA_FD_H |
| #define MAGMA_FD_H |
| |
| #include <stdint.h> |
| #include <stdbool.h> |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| // Fuchsia devices are 64bit handles, but this project only passes around 32bits |
| // because that's sufficient for file descriptors on Linux. |
| // Instead of changing the handle type everywhere, just map the Fuchsia device to |
| // a fake FD which can only be used with this API. |
| int get_magma_fd_for_device(uintptr_t device); |
| |
| // Performs a query on the device associated with the given FD. |
| bool query_magma_fd(int fd, int32_t param, uint32_t* value_out); |
| |
| // Returns the device associated with the FD, without transferring ownership. |
| uintptr_t get_device_for_magma_fd(int fd); |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif |