if (caa_likely(!ctx))
return 0;
+ offset += lib_ring_buffer_align(offset, ctx->largest_align);
for (i = 0; i < ctx->nr_fields; i++)
offset += ctx->fields[i].get_size(offset);
return offset - orig_offset;
if (caa_likely(!ctx))
return;
+ lib_ring_buffer_align_ctx(bufctx, ctx->largest_align);
for (i = 0; i < ctx->nr_fields; i++)
ctx->fields[i].record(&ctx->fields[i], bufctx, chan);
}
handle);
struct lttng_channel *lttng_chan = channel_get_private(chan);
+ assert(header);
+ if (!header)
+ return;
header->magic = CTF_MAGIC_NUMBER;
memcpy(header->uuid, lttng_chan->uuid, sizeof(lttng_chan->uuid));
header->stream_id = lttng_chan->id;
handle);
unsigned long records_lost = 0;
+ assert(header);
+ if (!header)
+ return;
header->ctx.timestamp_end = tsc;
header->ctx.content_size =
(uint64_t) data_size * CHAR_BIT; /* in bits */
static struct packet_header *client_packet_header(struct lttng_ust_lib_ring_buffer *buf,
struct lttng_ust_shm_handle *handle)
{
- struct channel *chan = shmp(handle, buf->backend.chan);
- struct lttng_channel *lttng_chan = channel_get_private(chan);
- unsigned long sb_index;
- struct lttng_ust_lib_ring_buffer_backend *bufb;
- struct packet_header *header;
-
- bufb = &buf->backend;
- sb_index = subbuffer_id_get_index(<tng_chan->chan->backend.config,
- bufb->buf_rsb.id);
- header = lib_ring_buffer_offset_address(bufb,
- sb_index * lttng_chan->chan->backend.subbuf_size,
- handle);
- return header;
+ return lib_ring_buffer_read_offset_address(&buf->backend, 0, handle);
}
static int client_timestamp_begin(struct lttng_ust_lib_ring_buffer *buf,
struct packet_header *header;
header = client_packet_header(buf, handle);
+ if (!header)
+ return -1;
*timestamp_begin = header->ctx.timestamp_begin;
return 0;
}
struct packet_header *header;
header = client_packet_header(buf, handle);
+ if (!header)
+ return -1;
*timestamp_end = header->ctx.timestamp_end;
return 0;
}
struct packet_header *header;
header = client_packet_header(buf, handle);
+ if (!header)
+ return -1;
*events_discarded = header->ctx.events_discarded;
return 0;
}
struct packet_header *header;
header = client_packet_header(buf, handle);
+ if (!header)
+ return -1;
*content_size = header->ctx.content_size;
return 0;
}
struct packet_header *header;
header = client_packet_header(buf, handle);
+ if (!header)
+ return -1;
*packet_size = header->ctx.packet_size;
return 0;
}
struct packet_header *header;
header = client_packet_header(buf, handle);
+ if (!header)
+ return -1;
*stream_id = header->stream_id;
return 0;
}
lib_ring_buffer_write(&client_config, ctx, src, len);
}
+static
+void lttng_event_strcpy(struct lttng_ust_lib_ring_buffer_ctx *ctx, const char *src,
+ size_t len)
+{
+ lib_ring_buffer_strcpy(&client_config, ctx, src, len, '#');
+}
+
#if 0
static
wait_queue_head_t *lttng_get_reader_wait_queue(struct channel *chan)
.ops = {
.channel_create = _channel_create,
.channel_destroy = lttng_channel_destroy,
+ .u.has_strcpy = 1,
.event_reserve = lttng_event_reserve,
.event_commit = lttng_event_commit,
.event_write = lttng_event_write,
.is_finalized = lttng_is_finalized,
.is_disabled = lttng_is_disabled,
.flush_buffer = lttng_flush_buffer,
+ .event_strcpy = lttng_event_strcpy,
},
.client_config = &client_config,
};