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Use the new atomic ops in the ringbuffer

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Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
This commit is contained in:
Angus Salkeld 2013-05-13 10:15:11 +10:00
parent 6f382aaade
commit 67dc29f48d
1 changed files with 6 additions and 5 deletions
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11
lib/ringbuffer.c
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@ -20,7 +20,7 @@
*/
#include "ringbuffer_int.h"
#include <qb/qbdefs.h>
#include <qb/qbatomic.h>
#include "atomic_int.h"
/*
* #define CRAZY_DEBUG_PRINTFS 1
@ -85,12 +85,13 @@ do { \
#define QB_RB_CHUNK_MAGIC 0xA1A1A1A1
#define QB_RB_CHUNK_MAGIC_DEAD 0xD0D0D0D0
#define QB_RB_CHUNK_MAGIC_ALLOC 0xA110CED0
#define QB_RB_CHUNK_SIZE_GET(rb, pointer) \
qb_atomic_int_get(&rb->shared_data[pointer])
#define QB_RB_CHUNK_SIZE_GET(rb, pointer) rb->shared_data[pointer]
#define QB_RB_CHUNK_MAGIC_GET(rb, pointer) \
qb_atomic_int_get(&rb->shared_data[(pointer + 1) % rb->shared_hdr->word_size])
qb_atomic_int_get_ex((int32_t*)&rb->shared_data[(pointer + 1) % rb->shared_hdr->word_size], \
QB_ATOMIC_ACQUIRE)
#define QB_RB_CHUNK_MAGIC_SET(rb, pointer, new_val) \
qb_atomic_int_set(&rb->shared_data[(pointer + 1) % rb->shared_hdr->word_size], new_val)
qb_atomic_int_set_ex((int32_t*)&rb->shared_data[(pointer + 1) % rb->shared_hdr->word_size], \
new_val, QB_ATOMIC_RELEASE)
#define QB_RB_CHUNK_DATA_GET(rb, pointer) \
&rb->shared_data[(pointer + QB_RB_CHUNK_HEADER_WORDS) % rb->shared_hdr->word_size]