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pulsecore: Transform pa_mempool_new() into a factory method

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Soon we're going to have three types of memory pools: POSIX shm_open()
pools, memfd memfd_create() ones, and privately malloc()-ed pools.

Thus introduce annotations for the memory types supported and change
pa_mempool_new() into a factory method based on required memory.

Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com>
This commit is contained in:
Ahmed S. Darwish 2016-03-13 00:57:06 +02:00 • committed by David Henningsson
parent 211a520543
commit b88acd0266
18 changed files with 97 additions and 37 deletions
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51
src/pulsecore/mem.h Normal file
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#ifndef foopulsememhfoo
#define foopulsememhfoo
/***
This file is part of PulseAudio.
Copyright 2016 Ahmed S. Darwish <darwish.07@gmail.com>
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 of the
License, or (at your option) any later version.
PulseAudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
***/
#include <stdbool.h>
#include <pulsecore/macro.h>
typedef enum pa_mem_type {
PA_MEM_TYPE_SHARED_POSIX, /* Data is shared and created using POSIX shm_open() */
PA_MEM_TYPE_SHARED_MEMFD, /* Data is shared and created using Linux memfd_create() */
PA_MEM_TYPE_PRIVATE, /* Data is private and created using classic memory allocation
(posix_memalign(), malloc() or anonymous mmap()) */
} pa_mem_type_t;
static inline const char *pa_mem_type_to_string(pa_mem_type_t type) {
switch (type) {
case PA_MEM_TYPE_SHARED_POSIX:
return "shared posix-shm";
case PA_MEM_TYPE_SHARED_MEMFD:
return "shared memfd";
case PA_MEM_TYPE_PRIVATE:
return "private";
}
pa_assert_not_reached();
}
static inline bool pa_mem_type_is_shared(pa_mem_type_t t) {
return (t == PA_MEM_TYPE_SHARED_POSIX) || (t == PA_MEM_TYPE_SHARED_MEMFD);
}
#endif