1/************************************************************************** 2 * 3 * Copyright 2021 Snap Inc. 4 * SPDX-License-Identifier: MIT 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sublicense, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice shall be included 15 * in all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 20 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY 21 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 22 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 23 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 24 * 25 **************************************************************************/ 26 27 28/* 29 * Memory fd wrappers. 30 */ 31 32 33#ifndef _OS_MEMORY_H_ 34#error "Must not be included directly. Include os_memory.h instead" 35#endif 36 37/** 38 * Imports memory from a file descriptor 39 */ 40bool 41os_import_memory_fd(int fd, void **ptr, uint64_t *size, char const *driver_id); 42 43/** 44 * Return memory on given byte alignment 45 */ 46void * 47os_malloc_aligned_fd(size_t size, size_t alignment, int *fd, char const *fd_name, char const *driver_id); 48 49/** 50 * Free memory returned by os_malloc_aligned_fd(). 51 */ 52void 53os_free_fd(void *ptr); 54