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Diffstat (limited to 'src/util/os_memory_fd.h')
-rw-r--r-- | src/util/os_memory_fd.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/src/util/os_memory_fd.h b/src/util/os_memory_fd.h new file mode 100644 index 00000000000..936e3911bbd --- /dev/null +++ b/src/util/os_memory_fd.h @@ -0,0 +1,53 @@ +/************************************************************************** + * + * Copyright 2021 Snap Inc. + * SPDX-License-Identifier: MIT + * + * 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. + * + **************************************************************************/ + + +/* + * Memory fd wrappers. + */ + + +#ifndef _OS_MEMORY_H_ +#error "Must not be included directly. Include os_memory.h instead" +#endif + +/** + * Imports memory from a file descriptor + */ +bool +os_import_memory_fd(int fd, void **ptr, uint64_t *size, char const *driver_id); + +/** + * Return memory on given byte alignment + */ +void * +os_malloc_aligned_fd(size_t size, size_t alignment, int *fd, char const *fd_name, char const *driver_id); + +/** + * Free memory returned by os_malloc_aligned_fd(). + */ +void +os_free_fd(void *ptr); |