#include <common/sessiond-comm/relayd.h>
#include <common/index/ctf-index.h>
#include <common/trace-chunk.h>
+#include <common/string-utils/format.h>
#include "relayd.h"
return ret;
}
-int relayd_rotate_stream(struct lttcomm_relayd_sock *rsock, uint64_t stream_id,
- uint64_t new_chunk_id, uint64_t seq_num)
+int relayd_rotate_streams(struct lttcomm_relayd_sock *sock,
+ unsigned int stream_count, uint64_t *new_chunk_id,
+ const struct relayd_stream_rotation_position *positions)
{
int ret;
- struct lttcomm_relayd_rotate_stream *msg = NULL;
- struct lttcomm_relayd_generic_reply reply;
- size_t len;
- int msg_len;
- /* FIXME */
- char *new_pathname = NULL;
+ unsigned int i;
+ struct lttng_dynamic_buffer payload;
+ struct lttcomm_relayd_generic_reply reply = {};
+ const struct lttcomm_relayd_rotate_streams msg = {
+ .stream_count = htobe32((uint32_t) stream_count),
+ .new_chunk_id = (typeof(msg.new_chunk_id)) {
+ .is_set = !!new_chunk_id,
+ .value = htobe64(new_chunk_id ? *new_chunk_id : 0),
+ },
+ };
+ char new_chunk_id_buf[MAX_INT_DEC_LEN(*new_chunk_id)] = {};
+ const char *new_chunk_id_str;
- /* Code flow error. Safety net. */
- assert(rsock);
+ lttng_dynamic_buffer_init(&payload);
- DBG("Sending rotate stream id %" PRIu64 " command to relayd", stream_id);
+ /* Code flow error. Safety net. */
+ assert(sock);
- /* Account for the trailing NULL. */
- len = lttng_strnlen(new_pathname, LTTNG_PATH_MAX) + 1;
- if (len > LTTNG_PATH_MAX) {
- ERR("Path used in relayd rotate stream command exceeds the maximal allowed length");
- ret = -1;
- goto error;
+ if (new_chunk_id) {
+ ret = snprintf(new_chunk_id_buf, sizeof(new_chunk_id_buf),
+ "%" PRIu64, *new_chunk_id);
+ if (ret == -1 || ret >= sizeof(new_chunk_id_buf)) {
+ new_chunk_id_str = "formatting error";
+ } else {
+ new_chunk_id_str = new_chunk_id_buf;
+ }
+ } else {
+ new_chunk_id_str = "none";
}
- msg_len = offsetof(struct lttcomm_relayd_rotate_stream, new_pathname) + len;
- msg = zmalloc(msg_len);
- if (!msg) {
- PERROR("Failed to allocate relayd rotate stream command of %d bytes",
- msg_len);
- ret = -1;
- goto error;
- }
+ DBG("Preparing \"rotate streams\" command payload: new_chunk_id = %s, stream_count = %u",
+ new_chunk_id_str, stream_count);
- if (lttng_strncpy(msg->new_pathname, new_pathname, len)) {
- ret = -1;
- ERR("Failed to copy relayd rotate stream command's new path name");
+ ret = lttng_dynamic_buffer_append(&payload, &msg, sizeof(msg));
+ if (ret) {
+ ERR("Failed to allocate \"rotate streams\" command payload");
goto error;
}
- msg->pathname_length = htobe32(len);
- msg->stream_id = htobe64(stream_id);
- msg->new_chunk_id = htobe64(new_chunk_id);
- /*
- * The seq_num is invalid for metadata streams, but it is ignored on
- * the relay.
- */
- msg->rotate_at_seq_num = htobe64(seq_num);
+ for (i = 0; i < stream_count; i++) {
+ const struct relayd_stream_rotation_position *position =
+ &positions[i];
+ const struct lttcomm_relayd_stream_rotation_position comm_position = {
+ .stream_id = htobe64(position->stream_id),
+ .rotate_at_seq_num = htobe64(
+ position->rotate_at_seq_num),
+ };
+
+ DBG("Rotate stream %" PRIu64 "at sequence number %" PRIu64,
+ position->stream_id,
+ position->rotate_at_seq_num);
+ ret = lttng_dynamic_buffer_append(&payload, &comm_position,
+ sizeof(comm_position));
+ if (ret) {
+ ERR("Failed to allocate \"rotate streams\" command payload");
+ goto error;
+ }
+ }
/* Send command. */
- ret = send_command(rsock, RELAYD_ROTATE_STREAM, (void *) msg, msg_len, 0);
+ ret = send_command(sock, RELAYD_ROTATE_STREAMS, payload.data,
+ payload.size, 0);
if (ret < 0) {
- ERR("Send rotate command");
+ ERR("Failed to send \"rotate stream\" command");
goto error;
}
/* Receive response. */
- ret = recv_reply(rsock, (void *) &reply, sizeof(reply));
+ ret = recv_reply(sock, &reply, sizeof(reply));
if (ret < 0) {
- ERR("Receive rotate reply");
+ ERR("Failed to receive \"rotate streams\" command reply");
goto error;
}
reply.ret_code = be32toh(reply.ret_code);
-
- /* Return session id or negative ret code. */
if (reply.ret_code != LTTNG_OK) {
ret = -1;
- ERR("Relayd rotate stream replied error %d", reply.ret_code);
+ ERR("Relayd rotate streams replied error %d", reply.ret_code);
} else {
/* Success. */
ret = 0;
- DBG("Relayd rotated stream id %" PRIu64 " successfully", stream_id);
+ DBG("Relayd rotated streams successfully");
}
error:
- free(msg);
+ lttng_dynamic_buffer_reset(&payload);
return ret;
}
end:
return ret;
}
+
+int relayd_trace_chunk_exists(struct lttcomm_relayd_sock *sock,
+ uint64_t chunk_id, bool *chunk_exists)
+{
+ int ret = 0;
+ struct lttcomm_relayd_trace_chunk_exists msg = {};
+ struct lttcomm_relayd_trace_chunk_exists_reply reply = {};
+
+ msg = (typeof(msg)){
+ .chunk_id = htobe64(chunk_id),
+ };
+
+ ret = send_command(sock, RELAYD_TRACE_CHUNK_EXISTS, &msg, sizeof(msg),
+ 0);
+ if (ret < 0) {
+ ERR("Failed to send trace chunk exists command to relay daemon");
+ goto end;
+ }
+
+ ret = recv_reply(sock, &reply, sizeof(reply));
+ if (ret < 0) {
+ ERR("Failed to receive relay daemon trace chunk close command reply");
+ goto end;
+ }
+
+ reply.generic.ret_code = be32toh(reply.generic.ret_code);
+ if (reply.generic.ret_code != LTTNG_OK) {
+ ret = -1;
+ ERR("Relayd trace chunk close replied error %d",
+ reply.generic.ret_code);
+ } else {
+ ret = 0;
+ DBG("Relayd successfully checked trace chunk existence: chunk_id = %" PRIu64
+ ", exists = %s", chunk_id,
+ reply.trace_chunk_exists ? "true" : "false");
+ *chunk_exists = !!reply.trace_chunk_exists;
+ }
+end:
+ return ret;
+}
projects / lttng-tools.git / blobdiff