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b1d47d60fc
Now that all layers in the stack support memfd blocks, add memfd pools support for client context and audio playback data. Use such memfd pools by default only if the server signals memfd support in its connection negotiations. Also add ability for clients to force-disable memfd transport through the `enable-memfd=' client configuration option. Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com>
60 lines
1.9 KiB
C
60 lines
1.9 KiB
C
#ifndef foopulsememhfoo
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#define foopulsememhfoo
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/***
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This file is part of PulseAudio.
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Copyright 2016 Ahmed S. Darwish <darwish.07@gmail.com>
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PulseAudio is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of the
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License, or (at your option) any later version.
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PulseAudio is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
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***/
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#include <stdbool.h>
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#include <pulsecore/creds.h>
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#include <pulsecore/macro.h>
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typedef enum pa_mem_type {
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PA_MEM_TYPE_SHARED_POSIX, /* Data is shared and created using POSIX shm_open() */
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PA_MEM_TYPE_SHARED_MEMFD, /* Data is shared and created using Linux memfd_create() */
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PA_MEM_TYPE_PRIVATE, /* Data is private and created using classic memory allocation
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(posix_memalign(), malloc() or anonymous mmap()) */
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} pa_mem_type_t;
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static inline const char *pa_mem_type_to_string(pa_mem_type_t type) {
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switch (type) {
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case PA_MEM_TYPE_SHARED_POSIX:
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return "shared posix-shm";
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case PA_MEM_TYPE_SHARED_MEMFD:
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return "shared memfd";
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case PA_MEM_TYPE_PRIVATE:
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return "private";
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}
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pa_assert_not_reached();
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}
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static inline bool pa_mem_type_is_shared(pa_mem_type_t t) {
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return (t == PA_MEM_TYPE_SHARED_POSIX) || (t == PA_MEM_TYPE_SHARED_MEMFD);
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}
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static inline bool pa_memfd_is_locally_supported() {
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#if defined(HAVE_CREDS) && defined(HAVE_MEMFD)
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return true;
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#else
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return false;
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#endif
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}
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#endif
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