#include "../libringbuffer/backend.h"
#include "../libringbuffer/frontend.h"
#include "../liblttng-ust/wait.h"
+#include "../liblttng-ust/lttng-rb-clients.h"
/*
* Number of milliseconds to retry before failing metadata writes on
};
extern void lttng_ring_buffer_client_overwrite_init(void);
+extern void lttng_ring_buffer_client_overwrite_rt_init(void);
extern void lttng_ring_buffer_client_discard_init(void);
+extern void lttng_ring_buffer_client_discard_rt_init(void);
extern void lttng_ring_buffer_metadata_client_init(void);
extern void lttng_ring_buffer_client_overwrite_exit(void);
+extern void lttng_ring_buffer_client_overwrite_rt_exit(void);
extern void lttng_ring_buffer_client_discard_exit(void);
+extern void lttng_ring_buffer_client_discard_rt_exit(void);
extern void lttng_ring_buffer_metadata_client_exit(void);
volatile enum ust_loglevel ust_loglevel;
return ustcomm_recv_app_reply(sock, &lur, lum.handle, lum.cmd);
}
+int ustctl_set_exclusion(int sock, struct lttng_ust_event_exclusion *exclusion,
+ struct lttng_ust_object_data *obj_data)
+{
+ struct ustcomm_ust_msg lum;
+ struct ustcomm_ust_reply lur;
+ int ret;
+
+ if (!obj_data) {
+ return -EINVAL;
+ }
+
+ memset(&lum, 0, sizeof(lum));
+ lum.handle = obj_data->handle;
+ lum.cmd = LTTNG_UST_EXCLUSION;
+ lum.u.exclusion.count = exclusion->count;
+
+ ret = ustcomm_send_app_msg(sock, &lum);
+ if (ret) {
+ return ret;
+ }
+
+ /* send var len exclusion names */
+ ret = ustcomm_send_unix_sock(sock,
+ exclusion->names,
+ exclusion->count * LTTNG_UST_SYM_NAME_LEN);
+ if (ret < 0) {
+ return ret;
+ }
+ if (ret != exclusion->count * LTTNG_UST_SYM_NAME_LEN) {
+ return -EINVAL;
+ }
+ return ustcomm_recv_app_reply(sock, &lur, lum.handle, lum.cmd);
+}
+
/* Enable event, channel and session ioctl */
int ustctl_enable(int sock, struct lttng_ust_object_data *object)
{
return ret;
ret = ustcomm_recv_app_reply(sock, &lur, lum.handle, lum.cmd);
if (!ret) {
- if (lur.ret_val >= 0) {
- channel_data->handle = lur.ret_val;
- }
+ channel_data->handle = lur.ret_val;
}
return ret;
}
attr->subbuf_size, attr->num_subbuf,
attr->switch_timer_interval,
attr->read_timer_interval,
- attr->uuid);
+ attr->uuid, attr->chan_id);
if (!chan->chan) {
goto chan_error;
}
void ustctl_destroy_channel(struct ustctl_consumer_channel *chan)
{
+ (void) ustctl_channel_close_wait_fd(chan);
+ (void) ustctl_channel_close_wakeup_fd(chan);
chan->chan->ops->channel_destroy(chan->chan);
free(chan);
}
return ret;
}
+/*
+ * Write at most one packet in the channel.
+ * Returns the number of bytes written on success, < 0 on error.
+ */
+ssize_t ustctl_write_one_packet_to_channel(
+ struct ustctl_consumer_channel *channel,
+ const char *metadata_str, /* NOT null-terminated */
+ size_t len) /* metadata length */
+{
+ struct lttng_ust_lib_ring_buffer_ctx ctx;
+ struct lttng_channel *chan = channel->chan;
+ const char *str = metadata_str;
+ ssize_t reserve_len;
+ int ret;
+
+ reserve_len = min_t(ssize_t,
+ chan->ops->packet_avail_size(chan->chan, chan->handle),
+ len);
+ lib_ring_buffer_ctx_init(&ctx, chan->chan, NULL, reserve_len,
+ sizeof(char), -1, chan->handle);
+ ret = chan->ops->event_reserve(&ctx, 0);
+ if (ret != 0) {
+ DBG("LTTng: event reservation failed");
+ assert(ret < 0);
+ reserve_len = ret;
+ goto end;
+ }
+ chan->ops->event_write(&ctx, str, reserve_len);
+ chan->ops->event_commit(&ctx);
+
+end:
+ return reserve_len;
+}
+
int ustctl_channel_close_wait_fd(struct ustctl_consumer_channel *consumer_chan)
{
struct channel *chan;
assert(stream);
buf = stream->buf;
consumer_chan = stream->chan;
+ (void) ustctl_stream_close_wait_fd(stream);
+ (void) ustctl_stream_close_wakeup_fd(stream);
lib_ring_buffer_release_read(buf, consumer_chan->chan->handle);
free(stream);
}
consumer_chan->chan->handle);
}
+static
+struct lttng_ust_client_lib_ring_buffer_client_cb *get_client_cb(
+ struct lttng_ust_lib_ring_buffer *buf,
+ struct lttng_ust_shm_handle *handle)
+{
+ struct channel *chan;
+ const struct lttng_ust_lib_ring_buffer_config *config;
+ struct lttng_ust_client_lib_ring_buffer_client_cb *client_cb;
+
+ chan = shmp(handle, buf->backend.chan);
+ config = &chan->backend.config;
+ if (!config->cb_ptr)
+ return NULL;
+ client_cb = caa_container_of(config->cb_ptr,
+ struct lttng_ust_client_lib_ring_buffer_client_cb,
+ parent);
+ return client_cb;
+}
+
+int ustctl_get_timestamp_begin(struct ustctl_consumer_stream *stream,
+ uint64_t *timestamp_begin)
+{
+ struct lttng_ust_client_lib_ring_buffer_client_cb *client_cb;
+ struct lttng_ust_lib_ring_buffer *buf;
+ struct lttng_ust_shm_handle *handle;
+
+ if (!stream || !timestamp_begin)
+ return -EINVAL;
+ buf = stream->buf;
+ handle = stream->chan->chan->handle;
+ client_cb = get_client_cb(buf, handle);
+ if (!client_cb)
+ return -ENOSYS;
+ return client_cb->timestamp_begin(buf, handle, timestamp_begin);
+}
+
+int ustctl_get_timestamp_end(struct ustctl_consumer_stream *stream,
+ uint64_t *timestamp_end)
+{
+ struct lttng_ust_client_lib_ring_buffer_client_cb *client_cb;
+ struct lttng_ust_lib_ring_buffer *buf;
+ struct lttng_ust_shm_handle *handle;
+
+ if (!stream || !timestamp_end)
+ return -EINVAL;
+ buf = stream->buf;
+ handle = stream->chan->chan->handle;
+ client_cb = get_client_cb(buf, handle);
+ if (!client_cb)
+ return -ENOSYS;
+ return client_cb->timestamp_end(buf, handle, timestamp_end);
+}
+
+int ustctl_get_events_discarded(struct ustctl_consumer_stream *stream,
+ uint64_t *events_discarded)
+{
+ struct lttng_ust_client_lib_ring_buffer_client_cb *client_cb;
+ struct lttng_ust_lib_ring_buffer *buf;
+ struct lttng_ust_shm_handle *handle;
+
+ if (!stream || !events_discarded)
+ return -EINVAL;
+ buf = stream->buf;
+ handle = stream->chan->chan->handle;
+ client_cb = get_client_cb(buf, handle);
+ if (!client_cb)
+ return -ENOSYS;
+ return client_cb->events_discarded(buf, handle, events_discarded);
+}
+
+int ustctl_get_content_size(struct ustctl_consumer_stream *stream,
+ uint64_t *content_size)
+{
+ struct lttng_ust_client_lib_ring_buffer_client_cb *client_cb;
+ struct lttng_ust_lib_ring_buffer *buf;
+ struct lttng_ust_shm_handle *handle;
+
+ if (!stream || !content_size)
+ return -EINVAL;
+ buf = stream->buf;
+ handle = stream->chan->chan->handle;
+ client_cb = get_client_cb(buf, handle);
+ if (!client_cb)
+ return -ENOSYS;
+ return client_cb->content_size(buf, handle, content_size);
+}
+
+int ustctl_get_packet_size(struct ustctl_consumer_stream *stream,
+ uint64_t *packet_size)
+{
+ struct lttng_ust_client_lib_ring_buffer_client_cb *client_cb;
+ struct lttng_ust_lib_ring_buffer *buf;
+ struct lttng_ust_shm_handle *handle;
+
+ if (!stream || !packet_size)
+ return -EINVAL;
+ buf = stream->buf;
+ handle = stream->chan->chan->handle;
+ client_cb = get_client_cb(buf, handle);
+ if (!client_cb)
+ return -ENOSYS;
+ return client_cb->packet_size(buf, handle, packet_size);
+}
+
+int ustctl_get_stream_id(struct ustctl_consumer_stream *stream,
+ uint64_t *stream_id)
+{
+ struct lttng_ust_client_lib_ring_buffer_client_cb *client_cb;
+ struct lttng_ust_lib_ring_buffer *buf;
+ struct lttng_ust_shm_handle *handle;
+
+ if (!stream || !stream_id)
+ return -EINVAL;
+ buf = stream->buf;
+ handle = stream->chan->chan->handle;
+ client_cb = get_client_cb(buf, handle);
+ if (!client_cb)
+ return -ENOSYS;
+ return client_cb->stream_id(buf, handle, stream_id);
+}
+
+int ustctl_get_current_timestamp(struct ustctl_consumer_stream *stream,
+ uint64_t *ts)
+{
+ struct lttng_ust_client_lib_ring_buffer_client_cb *client_cb;
+ struct lttng_ust_lib_ring_buffer *buf;
+ struct lttng_ust_shm_handle *handle;
+
+ if (!stream || !ts)
+ return -EINVAL;
+ buf = stream->buf;
+ handle = stream->chan->chan->handle;
+ client_cb = get_client_cb(buf, handle);
+ if (!client_cb || !client_cb->current_timestamp)
+ return -ENOSYS;
+ return client_cb->current_timestamp(buf, handle, ts);
+}
+
/*
* Returns 0 on success, negative error value on error.
*/
goto signature_error;
}
/* Enforce end of string */
- signature[signature_len - 1] = '\0';
+ a_sign[signature_len - 1] = '\0';
/* recv fields */
if (fields_len) {
projects / lttng-ust.git / blobdiff