#include <common/sessiond-comm/relayd.h>
#include <common/uri.h>
#include <common/utils.h>
+#include <common/fd-tracker/utils.h>
#include "cmd.h"
#include "live.h"
* Create a poll set with O_CLOEXEC and add the thread quit pipe to the set.
*/
static
-int create_thread_poll_set(struct lttng_poll_event *events, int size)
+int create_named_thread_poll_set(struct lttng_poll_event *events,
+ int size, const char *name)
{
int ret;
goto error;
}
- ret = lttng_poll_create(events, size, LTTNG_CLOEXEC);
- if (ret < 0) {
- goto error;
- }
+ ret = fd_tracker_util_poll_create(the_fd_tracker,
+ name, events, 1, LTTNG_CLOEXEC);
/* Add quit pipe */
ret = lttng_poll_add(events, thread_quit_pipe[0], LPOLLIN | LPOLLERR);
return ret;
}
+/*
+ * Create a poll set with O_CLOEXEC and add the thread quit pipe to the set.
+ */
+static
+int create_thread_poll_set(struct lttng_poll_event *events, int size)
+{
+ return create_named_thread_poll_set(events, size, "Unknown epoll");
+}
+
/*
* Check if the thread quit pipe was triggered.
*
}
/* Pass 2 as size here for the thread quit pipe and control sockets. */
- ret = create_thread_poll_set(&events, 2);
+ ret = create_named_thread_poll_set(&events, 2,
+ "Live listener thread epoll");
if (ret < 0) {
goto error_create_poll;
}
error:
error_poll_add:
error_testpoint:
- lttng_poll_clean(&events);
+ (void) fd_tracker_util_poll_clean(the_fd_tracker, &events);
error_create_poll:
if (live_control_sock->fd >= 0) {
ret = live_control_sock->ops->close(live_control_sock);
session = session_get_by_id(be64toh(request.session_id));
if (!session) {
DBG("Relay session %" PRIu64 " not found",
- be64toh(request.session_id));
+ (uint64_t) be64toh(request.session_id));
response.status = htobe32(LTTNG_VIEWER_ATTACH_UNK);
goto send_reply;
}
DBG("Attach session ID %" PRIu64 " received",
- be64toh(request.session_id));
+ (uint64_t) be64toh(request.session_id));
if (session->live_timer == 0) {
DBG("Not live session");
vstream = viewer_stream_get_by_id(be64toh(request_index.stream_id));
if (!vstream) {
DBG("Client requested index of unknown stream id %" PRIu64,
- be64toh(request_index.stream_id));
+ (uint64_t) be64toh(request_index.stream_id));
viewer_index.status = htobe32(LTTNG_VIEWER_INDEX_ERR);
goto send_reply;
}
*/
DBG("Sending viewer index for stream %" PRIu64 " offset %" PRIu64,
rstream->stream_handle,
- be64toh(packet_index.offset));
+ (uint64_t) be64toh(packet_index.offset));
viewer_index.offset = packet_index.offset;
viewer_index.packet_size = packet_index.packet_size;
viewer_index.content_size = packet_index.content_size;
static
int viewer_get_packet(struct relay_connection *conn)
{
- int ret, send_data = 0;
- char *data = NULL;
- uint32_t len = 0;
- ssize_t read_len;
+ int ret;
+ off_t lseek_ret;
+ char *reply = NULL;
struct lttng_viewer_get_packet get_packet_info;
- struct lttng_viewer_trace_packet reply;
+ struct lttng_viewer_trace_packet reply_header;
struct relay_viewer_stream *vstream = NULL;
+ uint32_t reply_size = sizeof(reply_header);
+ uint32_t packet_data_len = 0;
+ ssize_t read_len;
DBG2("Relay get data packet");
health_code_update();
/* From this point on, the error label can be reached. */
- memset(&reply, 0, sizeof(reply));
+ memset(&reply_header, 0, sizeof(reply_header));
vstream = viewer_stream_get_by_id(be64toh(get_packet_info.stream_id));
if (!vstream) {
DBG("Client requested packet of unknown stream id %" PRIu64,
- be64toh(get_packet_info.stream_id));
- reply.status = htobe32(LTTNG_VIEWER_GET_PACKET_ERR);
+ (uint64_t) be64toh(get_packet_info.stream_id));
+ reply_header.status = htobe32(LTTNG_VIEWER_GET_PACKET_ERR);
goto send_reply_nolock;
+ } else {
+ packet_data_len = be32toh(get_packet_info.len);
+ reply_size += packet_data_len;
}
- pthread_mutex_lock(&vstream->stream->lock);
-
- len = be32toh(get_packet_info.len);
- data = zmalloc(len);
- if (!data) {
- PERROR("relay data zmalloc");
+ reply = zmalloc(reply_size);
+ if (!reply) {
+ PERROR("packet reply zmalloc");
+ reply_size = sizeof(reply_header);
goto error;
}
- ret = lseek(vstream->stream_fd->fd, be64toh(get_packet_info.offset),
+ pthread_mutex_lock(&vstream->stream->lock);
+ lseek_ret = lseek(vstream->stream_fd->fd, be64toh(get_packet_info.offset),
SEEK_SET);
- if (ret < 0) {
+ if (lseek_ret < 0) {
PERROR("lseek fd %d to offset %" PRIu64, vstream->stream_fd->fd,
- be64toh(get_packet_info.offset));
+ (uint64_t) be64toh(get_packet_info.offset));
goto error;
}
- read_len = lttng_read(vstream->stream_fd->fd, data, len);
- if (read_len < len) {
+ read_len = lttng_read(vstream->stream_fd->fd,
+ reply + sizeof(reply_header),
+ packet_data_len);
+ if (read_len < packet_data_len) {
PERROR("Relay reading trace file, fd: %d, offset: %" PRIu64,
vstream->stream_fd->fd,
- be64toh(get_packet_info.offset));
+ (uint64_t) be64toh(get_packet_info.offset));
goto error;
}
- reply.status = htobe32(LTTNG_VIEWER_GET_PACKET_OK);
- reply.len = htobe32(len);
- send_data = 1;
+ reply_header.status = htobe32(LTTNG_VIEWER_GET_PACKET_OK);
+ reply_header.len = htobe32(packet_data_len);
goto send_reply;
error:
- reply.status = htobe32(LTTNG_VIEWER_GET_PACKET_ERR);
+ reply_header.status = htobe32(LTTNG_VIEWER_GET_PACKET_ERR);
send_reply:
if (vstream) {
pthread_mutex_unlock(&vstream->stream->lock);
}
send_reply_nolock:
- reply.flags = htobe32(reply.flags);
health_code_update();
- ret = send_response(conn->sock, &reply, sizeof(reply));
- if (ret < 0) {
- goto end_free;
+ if (reply) {
+ memcpy(reply, &reply_header, sizeof(reply_header));
+ ret = send_response(conn->sock, reply, reply_size);
+ } else {
+ /* No reply to send. */
+ ret = send_response(conn->sock, &reply_header,
+ reply_size);
}
- health_code_update();
- if (send_data) {
- health_code_update();
- ret = send_response(conn->sock, data, len);
- if (ret < 0) {
- goto end_free;
- }
- health_code_update();
+ health_code_update();
+ if (ret < 0) {
+ PERROR("sendmsg of packet data failed");
+ goto end_free;
}
- DBG("Sent %u bytes for stream %" PRIu64, len,
- be64toh(get_packet_info.stream_id));
+ DBG("Sent %u bytes for stream %" PRIu64, reply_size,
+ (uint64_t) be64toh(get_packet_info.stream_id));
end_free:
- free(data);
+ free(reply);
end:
if (vstream) {
viewer_stream_put(vstream);
* find it.
*/
DBG("Client requested metadata of unknown stream id %" PRIu64,
- be64toh(request.stream_id));
+ (uint64_t) be64toh(request.stream_id));
reply.status = htobe32(LTTNG_VIEWER_METADATA_ERR);
goto send_reply;
}
}
DBG("Sent %" PRIu64 " bytes of metadata for stream %" PRIu64, len,
- be64toh(request.stream_id));
+ (uint64_t) be64toh(request.stream_id));
DBG("Metadata sent");
session = session_get_by_id(be64toh(request.session_id));
if (!session) {
DBG("Relay session %" PRIu64 " not found",
- be64toh(request.session_id));
+ (uint64_t) be64toh(request.session_id));
response.status = htobe32(LTTNG_VIEWER_DETACH_SESSION_UNK);
goto send_reply;
}
lttng_ht_destroy(viewer_connections_ht);
viewer_connections_ht_error:
/* Close relay conn pipes */
- utils_close_pipe(live_conn_pipe);
+ (void) fd_tracker_util_pipe_close(the_fd_tracker, live_conn_pipe);
if (err) {
DBG("Viewer worker thread exited with error");
}
*/
static int create_conn_pipe(void)
{
- return utils_create_pipe_cloexec(live_conn_pipe);
+ return fd_tracker_util_pipe_open_cloexec(the_fd_tracker,
+ "Live connection pipe", live_conn_pipe);
}
int relayd_live_join(void)
projects / lttng-tools.git / blobdiff