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init private data
[lttng-ust.git]
/
libringbuffer
/
ring_buffer_frontend.c
diff --git
a/libringbuffer/ring_buffer_frontend.c
b/libringbuffer/ring_buffer_frontend.c
index fdb4bdfcc9b4f0a289a2dac09facd5aefdb501a9..6de8336861e4dadc43d77cf4f77140c54f67f64f 100644
(file)
--- a/
libringbuffer/ring_buffer_frontend.c
+++ b/
libringbuffer/ring_buffer_frontend.c
@@
-411,6
+411,7
@@
static void channel_free(struct channel *chan, struct lttng_ust_shm_handle *hand
* @name: name of the channel
* @priv_data: ring buffer client private data area pointer (output)
* @priv_data_size: length, in bytes, of the private data area.
* @name: name of the channel
* @priv_data: ring buffer client private data area pointer (output)
* @priv_data_size: length, in bytes, of the private data area.
+ * @priv_data_init: initialization data for private data.
* @buf_addr: pointer the the beginning of the preallocated buffer contiguous
* address mapping. It is used only by RING_BUFFER_STATIC
* configuration. It can be set to NULL for other backends.
* @buf_addr: pointer the the beginning of the preallocated buffer contiguous
* address mapping. It is used only by RING_BUFFER_STATIC
* configuration. It can be set to NULL for other backends.
@@
-429,6
+430,7
@@
struct lttng_ust_shm_handle *channel_create(const struct lttng_ust_lib_ring_buff
void **priv_data,
size_t priv_data_align,
size_t priv_data_size,
void **priv_data,
size_t priv_data_align,
size_t priv_data_size,
+ void *priv_data_init,
void *buf_addr, size_t subbuf_size,
size_t num_subbuf, unsigned int switch_timer_interval,
unsigned int read_timer_interval,
void *buf_addr, size_t subbuf_size,
size_t num_subbuf, unsigned int switch_timer_interval,
unsigned int read_timer_interval,
@@
-486,6
+488,7
@@
struct lttng_ust_shm_handle *channel_create(const struct lttng_ust_lib_ring_buff
if (!shmp(handle, priv_data_alloc))
goto error_append;
*priv_data = channel_get_private(chan);
if (!shmp(handle, priv_data_alloc))
goto error_append;
*priv_data = channel_get_private(chan);
+ memcpy(*priv_data, priv_data_init, priv_data_size);
} else {
chan->priv_data_offset = -1;
*priv_data = NULL;
} else {
chan->priv_data_offset = -1;
*priv_data = NULL;
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