*/
#define BT_COMP_LOG_SELF_COMP self_comp
-#define BT_LOG_OUTPUT_LEVEL log_level
-#define BT_LOG_TAG "PLUGIN/SRC.CTF.LTTNG-LIVE/META"
+#define BT_LOG_OUTPUT_LEVEL log_level
+#define BT_LOG_TAG "PLUGIN/SRC.CTF.LTTNG-LIVE/META"
#include "logging/comp-logging.h"
#include <stdio.h>
#include "../common/metadata/decoder.hpp"
#include "../common/metadata/ctf-meta-configure-ir-trace.hpp"
-#define TSDL_MAGIC 0x75d11d57
-
-struct packet_header {
- uint32_t magic;
- uint8_t uuid[16];
- uint32_t checksum;
- uint32_t content_size;
- uint32_t packet_size;
- uint8_t compression_scheme;
- uint8_t encryption_scheme;
- uint8_t checksum_scheme;
- uint8_t major;
- uint8_t minor;
-} __attribute__((__packed__));
+#define TSDL_MAGIC 0x75d11d57
+struct packet_header
+{
+ uint32_t magic;
+ uint8_t uuid[16];
+ uint32_t checksum;
+ uint32_t content_size;
+ uint32_t packet_size;
+ uint8_t compression_scheme;
+ uint8_t encryption_scheme;
+ uint8_t checksum_scheme;
+ uint8_t major;
+ uint8_t minor;
+} __attribute__((__packed__));
-static
-bool stream_classes_all_have_default_clock_class(bt_trace_class *tc,
- bt_logging_level log_level,
- bt_self_component *self_comp)
+static bool stream_classes_all_have_default_clock_class(bt_trace_class *tc,
+ bt_logging_level log_level,
+ bt_self_component *self_comp)
{
- uint64_t i, sc_count;
- const bt_clock_class *cc = NULL;
- const bt_stream_class *sc;
- bool ret = true;
-
- sc_count = bt_trace_class_get_stream_class_count(tc);
- for (i = 0; i < sc_count; i++) {
- sc = bt_trace_class_borrow_stream_class_by_index_const(tc, i);
-
- BT_ASSERT(sc);
-
- cc = bt_stream_class_borrow_default_clock_class_const(sc);
- if (!cc) {
- ret = false;
- BT_COMP_LOGE_APPEND_CAUSE(self_comp,
- "Stream class doesn't have a default clock class: "
- "sc-id=%" PRIu64 ", sc-name=\"%s\"",
- bt_stream_class_get_id(sc),
- bt_stream_class_get_name(sc));
- goto end;
- }
- }
+ uint64_t i, sc_count;
+ const bt_clock_class *cc = NULL;
+ const bt_stream_class *sc;
+ bool ret = true;
+
+ sc_count = bt_trace_class_get_stream_class_count(tc);
+ for (i = 0; i < sc_count; i++) {
+ sc = bt_trace_class_borrow_stream_class_by_index_const(tc, i);
+
+ BT_ASSERT(sc);
+
+ cc = bt_stream_class_borrow_default_clock_class_const(sc);
+ if (!cc) {
+ ret = false;
+ BT_COMP_LOGE_APPEND_CAUSE(self_comp,
+ "Stream class doesn't have a default clock class: "
+ "sc-id=%" PRIu64 ", sc-name=\"%s\"",
+ bt_stream_class_get_id(sc), bt_stream_class_get_name(sc));
+ goto end;
+ }
+ }
end:
- return ret;
+ return ret;
}
/*
* Iterate over the stream classes and returns the first clock class
* encountered. This is useful to create message iterator inactivity message as
* we don't need a particular clock class.
*/
-static
-const bt_clock_class *borrow_any_clock_class(bt_trace_class *tc)
+static const bt_clock_class *borrow_any_clock_class(bt_trace_class *tc)
{
- uint64_t i, sc_count;
- const bt_clock_class *cc = NULL;
- const bt_stream_class *sc;
-
- sc_count = bt_trace_class_get_stream_class_count(tc);
- for (i = 0; i < sc_count; i++) {
- sc = bt_trace_class_borrow_stream_class_by_index_const(tc, i);
- BT_ASSERT_DBG(sc);
-
- cc = bt_stream_class_borrow_default_clock_class_const(sc);
- if (cc) {
- goto end;
- }
- }
+ uint64_t i, sc_count;
+ const bt_clock_class *cc = NULL;
+ const bt_stream_class *sc;
+
+ sc_count = bt_trace_class_get_stream_class_count(tc);
+ for (i = 0; i < sc_count; i++) {
+ sc = bt_trace_class_borrow_stream_class_by_index_const(tc, i);
+ BT_ASSERT_DBG(sc);
+
+ cc = bt_stream_class_borrow_default_clock_class_const(sc);
+ if (cc) {
+ goto end;
+ }
+ }
end:
- BT_ASSERT_DBG(cc);
- return cc;
+ BT_ASSERT_DBG(cc);
+ return cc;
}
BT_HIDDEN
-enum lttng_live_iterator_status lttng_live_metadata_update(
- struct lttng_live_trace *trace)
+enum lttng_live_iterator_status lttng_live_metadata_update(struct lttng_live_trace *trace)
{
- struct lttng_live_session *session = trace->session;
- struct lttng_live_metadata *metadata = trace->metadata;
- size_t size, len_read = 0;
- char *metadata_buf = NULL;
- bool keep_receiving;
- FILE *fp = NULL;
- enum ctf_metadata_decoder_status decoder_status;
- enum lttng_live_iterator_status status =
- LTTNG_LIVE_ITERATOR_STATUS_OK;
- bt_logging_level log_level = trace->log_level;
- bt_self_component *self_comp = trace->self_comp;
- enum lttng_live_get_one_metadata_status metadata_status;
-
- BT_COMP_LOGD("Updating metadata for trace: session-id=%" PRIu64
- ", trace-id=%" PRIu64, session->id, trace->id);
-
- /* No metadata stream yet. */
- if (!metadata) {
- if (session->new_streams_needed) {
- status = LTTNG_LIVE_ITERATOR_STATUS_AGAIN;
- } else {
- session->new_streams_needed = true;
- status = LTTNG_LIVE_ITERATOR_STATUS_CONTINUE;
- }
- goto end;
- }
-
- if (trace->metadata_stream_state != LTTNG_LIVE_METADATA_STREAM_STATE_NEEDED) {
- goto end;
- }
-
- /*
- * Open a new write only file handle to populate the `metadata_buf`
- * memory buffer so we can write in loop in it easily.
- */
- fp = bt_open_memstream(&metadata_buf, &size);
- if (!fp) {
- if (errno == EINTR &&
- lttng_live_graph_is_canceled(session->lttng_live_msg_iter)) {
- session->lttng_live_msg_iter->was_interrupted = true;
- status = LTTNG_LIVE_ITERATOR_STATUS_AGAIN;
- } else {
- BT_COMP_LOGE_APPEND_CAUSE_ERRNO(self_comp,
- "Metadata open_memstream", ".");
- status = LTTNG_LIVE_ITERATOR_STATUS_ERROR;
- }
- goto end;
- }
-
- keep_receiving = true;
- /* Grab all available metadata. */
- while (keep_receiving) {
- size_t reply_len = 0;
- /*
- * lttng_live_get_one_metadata_packet() asks the Relay Daemon
- * for new metadata. If new metadata is received, the function
- * writes it to the provided file handle and updates the
- * reply_len output parameter. We call this function in loop
- * until it returns _END meaning that no new metadata is
- * available.
- * We may receive a _CLOSED status if the metadata stream we
- * are requesting is no longer available on the relay.
- * If we receive an _ERROR status, it means there was a
- * networking, allocating, or some other unrecoverable error.
- */
- metadata_status = lttng_live_get_one_metadata_packet(trace, fp,
- &reply_len);
-
- switch (metadata_status) {
- case LTTNG_LIVE_GET_ONE_METADATA_STATUS_OK:
- len_read += reply_len;
- break;
- case LTTNG_LIVE_GET_ONE_METADATA_STATUS_END:
- keep_receiving = false;
- break;
- case LTTNG_LIVE_GET_ONE_METADATA_STATUS_CLOSED:
- BT_COMP_LOGD("Metadata stream was closed by the Relay, the trace is no longer active: "
- "trace-id=%" PRIu64 ", metadata-stream-id=%" PRIu64,
- trace->id, metadata->stream_id);
- /*
- * The stream was closed and we received everything
- * there was to receive for this metadata stream.
- * We go on with the decoding of what we received. So
- * that data stream can be decoded.
- */
- keep_receiving = false;
- trace->metadata_stream_state = LTTNG_LIVE_METADATA_STREAM_STATE_CLOSED;
- break;
- case LTTNG_LIVE_GET_ONE_METADATA_STATUS_ERROR:
- BT_COMP_LOGE_APPEND_CAUSE(self_comp,
- "Error getting one trace metadata packet: "
- "trace-id=%" PRIu64, trace->id);
- goto error;
- default:
- bt_common_abort();
- }
- }
-
- /* The memory buffer `metadata_buf` contains all the metadata. */
- if (bt_close_memstream(&metadata_buf, &size, fp)) {
- BT_COMP_LOGW_ERRNO("Metadata bt_close_memstream", ".");
- }
-
- fp = NULL;
-
- if (len_read == 0) {
- if (!trace->trace) {
- status = LTTNG_LIVE_ITERATOR_STATUS_AGAIN;
- goto end;
- }
-
- /* The relay sent zero bytes of metdata. */
- trace->metadata_stream_state = LTTNG_LIVE_METADATA_STREAM_STATE_NOT_NEEDED;
- goto end;
- }
-
- /*
- * Open a new reading file handle on the `metadata_buf` and pass it to
- * the metadata decoder.
- */
- fp = bt_fmemopen(metadata_buf, len_read, "rb");
- if (!fp) {
- if (errno == EINTR &&
- lttng_live_graph_is_canceled(session->lttng_live_msg_iter)) {
- session->lttng_live_msg_iter->was_interrupted = true;
- status = LTTNG_LIVE_ITERATOR_STATUS_AGAIN;
- } else {
- BT_COMP_LOGE_APPEND_CAUSE_ERRNO(self_comp,
- "Cannot memory-open metadata buffer", ".");
- status = LTTNG_LIVE_ITERATOR_STATUS_ERROR;
- }
- goto end;
- }
-
- /*
- * The call to ctf_metadata_decoder_append_content() will append
- * new metadata to our current trace class.
- */
- BT_COMP_LOGD("Appending new metadata to the ctf_trace class");
- decoder_status = ctf_metadata_decoder_append_content(
- metadata->decoder, fp);
- switch (decoder_status) {
- case CTF_METADATA_DECODER_STATUS_OK:
- if (!trace->trace_class) {
- struct ctf_trace_class *tc =
- ctf_metadata_decoder_borrow_ctf_trace_class(
- metadata->decoder);
-
- trace->trace_class =
- ctf_metadata_decoder_get_ir_trace_class(
- metadata->decoder);
- trace->trace = bt_trace_create(trace->trace_class);
- if (!trace->trace) {
- BT_COMP_LOGE_APPEND_CAUSE(self_comp,
- "Failed to create bt_trace");
- goto error;
- }
- if (ctf_trace_class_configure_ir_trace(tc,
- trace->trace)) {
- BT_COMP_LOGE_APPEND_CAUSE(self_comp,
- "Failed to configure ctf trace class");
- goto error;
- }
- if (!stream_classes_all_have_default_clock_class(
- trace->trace_class, log_level,
- self_comp)) {
- /* Error logged in function. */
- goto error;
- }
- trace->clock_class =
- borrow_any_clock_class(trace->trace_class);
- }
-
- /* The metadata was updated succesfully. */
- trace->metadata_stream_state = LTTNG_LIVE_METADATA_STREAM_STATE_NOT_NEEDED;
-
- break;
- default:
- goto error;
- }
-
- goto end;
+ struct lttng_live_session *session = trace->session;
+ struct lttng_live_metadata *metadata = trace->metadata;
+ size_t size, len_read = 0;
+ char *metadata_buf = NULL;
+ bool keep_receiving;
+ FILE *fp = NULL;
+ enum ctf_metadata_decoder_status decoder_status;
+ enum lttng_live_iterator_status status = LTTNG_LIVE_ITERATOR_STATUS_OK;
+ bt_logging_level log_level = trace->log_level;
+ bt_self_component *self_comp = trace->self_comp;
+ enum lttng_live_get_one_metadata_status metadata_status;
+
+ BT_COMP_LOGD("Updating metadata for trace: session-id=%" PRIu64 ", trace-id=%" PRIu64,
+ session->id, trace->id);
+
+ /* No metadata stream yet. */
+ if (!metadata) {
+ if (session->new_streams_needed) {
+ status = LTTNG_LIVE_ITERATOR_STATUS_AGAIN;
+ } else {
+ session->new_streams_needed = true;
+ status = LTTNG_LIVE_ITERATOR_STATUS_CONTINUE;
+ }
+ goto end;
+ }
+
+ if (trace->metadata_stream_state != LTTNG_LIVE_METADATA_STREAM_STATE_NEEDED) {
+ goto end;
+ }
+
+ /*
+ * Open a new write only file handle to populate the `metadata_buf`
+ * memory buffer so we can write in loop in it easily.
+ */
+ fp = bt_open_memstream(&metadata_buf, &size);
+ if (!fp) {
+ if (errno == EINTR && lttng_live_graph_is_canceled(session->lttng_live_msg_iter)) {
+ session->lttng_live_msg_iter->was_interrupted = true;
+ status = LTTNG_LIVE_ITERATOR_STATUS_AGAIN;
+ } else {
+ BT_COMP_LOGE_APPEND_CAUSE_ERRNO(self_comp, "Metadata open_memstream", ".");
+ status = LTTNG_LIVE_ITERATOR_STATUS_ERROR;
+ }
+ goto end;
+ }
+
+ keep_receiving = true;
+ /* Grab all available metadata. */
+ while (keep_receiving) {
+ size_t reply_len = 0;
+ /*
+ * lttng_live_get_one_metadata_packet() asks the Relay Daemon
+ * for new metadata. If new metadata is received, the function
+ * writes it to the provided file handle and updates the
+ * reply_len output parameter. We call this function in loop
+ * until it returns _END meaning that no new metadata is
+ * available.
+ * We may receive a _CLOSED status if the metadata stream we
+ * are requesting is no longer available on the relay.
+ * If we receive an _ERROR status, it means there was a
+ * networking, allocating, or some other unrecoverable error.
+ */
+ metadata_status = lttng_live_get_one_metadata_packet(trace, fp, &reply_len);
+
+ switch (metadata_status) {
+ case LTTNG_LIVE_GET_ONE_METADATA_STATUS_OK:
+ len_read += reply_len;
+ break;
+ case LTTNG_LIVE_GET_ONE_METADATA_STATUS_END:
+ keep_receiving = false;
+ break;
+ case LTTNG_LIVE_GET_ONE_METADATA_STATUS_CLOSED:
+ BT_COMP_LOGD("Metadata stream was closed by the Relay, the trace is no longer active: "
+ "trace-id=%" PRIu64 ", metadata-stream-id=%" PRIu64,
+ trace->id, metadata->stream_id);
+ /*
+ * The stream was closed and we received everything
+ * there was to receive for this metadata stream.
+ * We go on with the decoding of what we received. So
+ * that data stream can be decoded.
+ */
+ keep_receiving = false;
+ trace->metadata_stream_state = LTTNG_LIVE_METADATA_STREAM_STATE_CLOSED;
+ break;
+ case LTTNG_LIVE_GET_ONE_METADATA_STATUS_ERROR:
+ BT_COMP_LOGE_APPEND_CAUSE(self_comp,
+ "Error getting one trace metadata packet: "
+ "trace-id=%" PRIu64,
+ trace->id);
+ goto error;
+ default:
+ bt_common_abort();
+ }
+ }
+
+ /* The memory buffer `metadata_buf` contains all the metadata. */
+ if (bt_close_memstream(&metadata_buf, &size, fp)) {
+ BT_COMP_LOGW_ERRNO("Metadata bt_close_memstream", ".");
+ }
+
+ fp = NULL;
+
+ if (len_read == 0) {
+ if (!trace->trace) {
+ status = LTTNG_LIVE_ITERATOR_STATUS_AGAIN;
+ goto end;
+ }
+
+ /* The relay sent zero bytes of metdata. */
+ trace->metadata_stream_state = LTTNG_LIVE_METADATA_STREAM_STATE_NOT_NEEDED;
+ goto end;
+ }
+
+ /*
+ * Open a new reading file handle on the `metadata_buf` and pass it to
+ * the metadata decoder.
+ */
+ fp = bt_fmemopen(metadata_buf, len_read, "rb");
+ if (!fp) {
+ if (errno == EINTR && lttng_live_graph_is_canceled(session->lttng_live_msg_iter)) {
+ session->lttng_live_msg_iter->was_interrupted = true;
+ status = LTTNG_LIVE_ITERATOR_STATUS_AGAIN;
+ } else {
+ BT_COMP_LOGE_APPEND_CAUSE_ERRNO(self_comp, "Cannot memory-open metadata buffer", ".");
+ status = LTTNG_LIVE_ITERATOR_STATUS_ERROR;
+ }
+ goto end;
+ }
+
+ /*
+ * The call to ctf_metadata_decoder_append_content() will append
+ * new metadata to our current trace class.
+ */
+ BT_COMP_LOGD("Appending new metadata to the ctf_trace class");
+ decoder_status = ctf_metadata_decoder_append_content(metadata->decoder, fp);
+ switch (decoder_status) {
+ case CTF_METADATA_DECODER_STATUS_OK:
+ if (!trace->trace_class) {
+ struct ctf_trace_class *tc =
+ ctf_metadata_decoder_borrow_ctf_trace_class(metadata->decoder);
+
+ trace->trace_class = ctf_metadata_decoder_get_ir_trace_class(metadata->decoder);
+ trace->trace = bt_trace_create(trace->trace_class);
+ if (!trace->trace) {
+ BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Failed to create bt_trace");
+ goto error;
+ }
+ if (ctf_trace_class_configure_ir_trace(tc, trace->trace)) {
+ BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Failed to configure ctf trace class");
+ goto error;
+ }
+ if (!stream_classes_all_have_default_clock_class(trace->trace_class, log_level,
+ self_comp)) {
+ /* Error logged in function. */
+ goto error;
+ }
+ trace->clock_class = borrow_any_clock_class(trace->trace_class);
+ }
+
+ /* The metadata was updated succesfully. */
+ trace->metadata_stream_state = LTTNG_LIVE_METADATA_STREAM_STATE_NOT_NEEDED;
+
+ break;
+ default:
+ goto error;
+ }
+
+ goto end;
error:
- status = LTTNG_LIVE_ITERATOR_STATUS_ERROR;
+ status = LTTNG_LIVE_ITERATOR_STATUS_ERROR;
end:
- if (fp) {
- int closeret;
-
- closeret = fclose(fp);
- if (closeret) {
- BT_COMP_LOGW_ERRNO("Error on fclose", ".");
- }
- }
- free(metadata_buf);
- return status;
+ if (fp) {
+ int closeret;
+
+ closeret = fclose(fp);
+ if (closeret) {
+ BT_COMP_LOGW_ERRNO("Error on fclose", ".");
+ }
+ }
+ free(metadata_buf);
+ return status;
}
BT_HIDDEN
-int lttng_live_metadata_create_stream(struct lttng_live_session *session,
- uint64_t ctf_trace_id, uint64_t stream_id,
- const char *trace_name)
+int lttng_live_metadata_create_stream(struct lttng_live_session *session, uint64_t ctf_trace_id,
+ uint64_t stream_id, const char *trace_name)
{
- bt_self_component *self_comp = session->self_comp;
- bt_logging_level log_level = session->log_level;
- struct lttng_live_metadata *metadata = NULL;
- struct lttng_live_trace *trace;
-
- ctf_metadata_decoder_config cfg{};
- cfg.log_level = session->log_level;
- cfg.self_comp = session->self_comp;
- cfg.clock_class_offset_s = 0;
- cfg.clock_class_offset_ns = 0;
- cfg.create_trace_class = true;
-
- metadata = g_new0(struct lttng_live_metadata, 1);
- if (!metadata) {
- return -1;
- }
- metadata->log_level = session->log_level;
- metadata->self_comp = session->self_comp;
- metadata->stream_id = stream_id;
-
- metadata->decoder = ctf_metadata_decoder_create(&cfg);
- if (!metadata->decoder) {
- BT_COMP_LOGE_APPEND_CAUSE(self_comp,
- "Failed to create CTF metadata decoder");
- goto error;
- }
- trace = lttng_live_session_borrow_or_create_trace_by_id(session,
- ctf_trace_id);
- if (!trace) {
- BT_COMP_LOGE_APPEND_CAUSE(self_comp,
- "Failed to borrow trace");
- goto error;
- }
- trace->metadata = metadata;
- return 0;
+ bt_self_component *self_comp = session->self_comp;
+ bt_logging_level log_level = session->log_level;
+ struct lttng_live_metadata *metadata = NULL;
+ struct lttng_live_trace *trace;
+
+ ctf_metadata_decoder_config cfg {};
+ cfg.log_level = session->log_level;
+ cfg.self_comp = session->self_comp;
+ cfg.clock_class_offset_s = 0;
+ cfg.clock_class_offset_ns = 0;
+ cfg.create_trace_class = true;
+
+ metadata = g_new0(struct lttng_live_metadata, 1);
+ if (!metadata) {
+ return -1;
+ }
+ metadata->log_level = session->log_level;
+ metadata->self_comp = session->self_comp;
+ metadata->stream_id = stream_id;
+
+ metadata->decoder = ctf_metadata_decoder_create(&cfg);
+ if (!metadata->decoder) {
+ BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Failed to create CTF metadata decoder");
+ goto error;
+ }
+ trace = lttng_live_session_borrow_or_create_trace_by_id(session, ctf_trace_id);
+ if (!trace) {
+ BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Failed to borrow trace");
+ goto error;
+ }
+ trace->metadata = metadata;
+ return 0;
error:
- ctf_metadata_decoder_destroy(metadata->decoder);
- g_free(metadata);
- return -1;
+ ctf_metadata_decoder_destroy(metadata->decoder);
+ g_free(metadata);
+ return -1;
}
BT_HIDDEN
void lttng_live_metadata_fini(struct lttng_live_trace *trace)
{
- struct lttng_live_metadata *metadata = trace->metadata;
-
- if (!metadata) {
- return;
- }
- ctf_metadata_decoder_destroy(metadata->decoder);
- trace->metadata = NULL;
- g_free(metadata);
+ struct lttng_live_metadata *metadata = trace->metadata;
+
+ if (!metadata) {
+ return;
+ }
+ ctf_metadata_decoder_destroy(metadata->decoder);
+ trace->metadata = NULL;
+ g_free(metadata);
}
projects / babeltrace.git / blobdiff