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ringbuffer: use gcc atomic operations

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Remove barrier, use GCC atomic operations for ringbuffer
This commit is contained in:
Wim Taymans 2017-04-24 13:18:57 +02:00
parent 02d4dc0efd
commit baada0a330
7 changed files with 32 additions and 92 deletions
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15
pinos/client/transport.c
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@ -39,7 +39,7 @@ typedef struct {
size_t offset;
SpaEvent current;
uint32_t current_offset;
uint32_t current_index;
} PinosTransportImpl;
static size_t
@ -223,7 +223,7 @@ pinos_transport_add_event (PinosTransport *trans,
index & trans->output_buffer->mask,
event,
size);
spa_ringbuffer_write_advance (trans->output_buffer, size);
spa_ringbuffer_write_update (trans->output_buffer, index + size);
return SPA_RESULT_OK;
}
@ -234,20 +234,17 @@ pinos_transport_next_event (PinosTransport *trans,
{
PinosTransportImpl *impl = (PinosTransportImpl *) trans;
int32_t avail;
uint32_t index;
if (impl == NULL || event == NULL)
return SPA_RESULT_INVALID_ARGUMENTS;
avail = spa_ringbuffer_get_read_index (trans->input_buffer, &index);
avail = spa_ringbuffer_get_read_index (trans->input_buffer, &impl->current_index);
if (avail < sizeof (SpaEvent))
return SPA_RESULT_ENUM_END;
impl->current_offset = index & trans->input_buffer->mask;
spa_ringbuffer_read_data (trans->input_buffer,
trans->input_data,
impl->current_offset,
impl->current_index & trans->input_buffer->mask,
&impl->current,
sizeof (SpaEvent));
@ -270,10 +267,10 @@ pinos_transport_parse_event (PinosTransport *trans,
spa_ringbuffer_read_data (trans->input_buffer,
trans->input_data,
impl->current_offset,
impl->current_index & trans->input_buffer->mask,
event,
size);
spa_ringbuffer_read_advance (trans->input_buffer, size);
spa_ringbuffer_read_update (trans->input_buffer, impl->current_index + size);
return SPA_RESULT_OK;
}