1#ifndef foopulsememhfoo 2#define foopulsememhfoo 3 4/*** 5 This file is part of PulseAudio. 6 7 Copyright 2016 Ahmed S. Darwish <darwish.07@gmail.com> 8 9 PulseAudio is free software; you can redistribute it and/or modify 10 it under the terms of the GNU Lesser General Public License as 11 published by the Free Software Foundation; either version 2.1 of the 12 License, or (at your option) any later version. 13 14 PulseAudio is distributed in the hope that it will be useful, but 15 WITHOUT ANY WARRANTY; without even the implied warranty of 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 17 Lesser General Public License for more details. 18 19 You should have received a copy of the GNU Lesser General Public 20 License along with PulseAudio; if not, see <http://www.gnu.org/licenses/>. 21***/ 22 23#include <stdbool.h> 24 25#include <pulsecore/creds.h> 26#include <pulsecore/macro.h> 27 28typedef enum pa_mem_type { 29 PA_MEM_TYPE_SHARED_POSIX, /* Data is shared and created using POSIX shm_open() */ 30 PA_MEM_TYPE_SHARED_MEMFD, /* Data is shared and created using Linux memfd_create() */ 31 PA_MEM_TYPE_PRIVATE, /* Data is private and created using classic memory allocation 32 (posix_memalign(), malloc() or anonymous mmap()) */ 33} pa_mem_type_t; 34 35static inline const char *pa_mem_type_to_string(pa_mem_type_t type) { 36 switch (type) { 37 case PA_MEM_TYPE_SHARED_POSIX: 38 return "shared posix-shm"; 39 case PA_MEM_TYPE_SHARED_MEMFD: 40 return "shared memfd"; 41 case PA_MEM_TYPE_PRIVATE: 42 return "private"; 43 } 44 45 pa_assert_not_reached(); 46} 47 48static inline bool pa_mem_type_is_shared(pa_mem_type_t t) { 49 return (t == PA_MEM_TYPE_SHARED_POSIX) || (t == PA_MEM_TYPE_SHARED_MEMFD); 50} 51 52static inline bool pa_memfd_is_locally_supported(void) { 53#if defined(HAVE_CREDS) && defined(HAVE_MEMFD) 54 return true; 55#else 56 return false; 57#endif 58} 59 60#endif 61