#include <babeltrace/ctf/types.h>
#include <babeltrace/ctf/metadata.h>
#include <babeltrace/babeltrace-internal.h>
+#include <babeltrace/ctf/events-internal.h>
+#include <babeltrace/trace-handle-internal.h>
+#include <babeltrace/context-internal.h>
+#include <babeltrace/uuid.h>
+#include <babeltrace/endian.h>
#include <inttypes.h>
#include <stdio.h>
-#include <uuid/uuid.h>
#include <sys/mman.h>
#include <errno.h>
-#include <endian.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "metadata/ctf-scanner.h"
#include "metadata/ctf-parser.h"
#include "metadata/ctf-ast.h"
+#include "events-private.h"
+#include "memstream.h"
/*
* We currently simply map a page to read the packet header and packet
*/
#define MAX_PACKET_HEADER_LEN (getpagesize() * CHAR_BIT)
#define WRITE_PACKET_LEN (getpagesize() * 8 * CHAR_BIT)
-#define UUID_LEN 16 /* uuid by value len */
#ifndef min
#define min(a, b) (((a) < (b)) ? (a) : (b))
static
struct trace_descriptor *ctf_open_trace(const char *path, int flags,
- void (*packet_seek)(struct stream_pos *pos, size_t offset,
- int whence), FILE *metadata_fp);
+ void (*packet_seek)(struct stream_pos *pos, size_t index,
+ int whence),
+ FILE *metadata_fp);
static
struct trace_descriptor *ctf_open_mmap_trace(
struct mmap_stream_list *mmap_list,
- void (*packet_seek)(struct stream_pos *pos, size_t offset, int whence),
+ void (*packet_seek)(struct stream_pos *pos, size_t index,
+ int whence),
FILE *metadata_fp);
+static
+void ctf_set_context(struct trace_descriptor *descriptor,
+ struct bt_context *ctx);
+static
+void ctf_set_handle(struct trace_descriptor *descriptor,
+ struct bt_trace_handle *handle);
static
void ctf_close_trace(struct trace_descriptor *descriptor);
+static
+uint64_t ctf_timestamp_begin(struct trace_descriptor *descriptor,
+ struct bt_trace_handle *handle);
+static
+uint64_t ctf_timestamp_end(struct trace_descriptor *descriptor,
+ struct bt_trace_handle *handle);
static
rw_dispatch read_dispatch_table[] = {
.open_trace = ctf_open_trace,
.open_mmap_trace = ctf_open_mmap_trace,
.close_trace = ctf_close_trace,
+ .set_context = ctf_set_context,
+ .set_handle = ctf_set_handle,
+ .timestamp_begin = ctf_timestamp_begin,
+ .timestamp_end = ctf_timestamp_end,
};
+static
+uint64_t ctf_timestamp_begin(struct trace_descriptor *descriptor,
+ struct bt_trace_handle *handle)
+{
+ struct ctf_trace *tin;
+ uint64_t begin = ULLONG_MAX;
+ int i, j;
+
+ tin = container_of(descriptor, struct ctf_trace, parent);
+
+ if (!tin)
+ goto error;
+
+ /* for each stream_class */
+ for (i = 0; i < tin->streams->len; i++) {
+ struct ctf_stream_declaration *stream_class;
+
+ stream_class = g_ptr_array_index(tin->streams, i);
+ /* for each file_stream */
+ for (j = 0; j < stream_class->streams->len; j++) {
+ struct ctf_stream_definition *stream;
+ struct ctf_file_stream *cfs;
+ struct ctf_stream_pos *stream_pos;
+ struct packet_index *index;
+
+ stream = g_ptr_array_index(stream_class->streams, j);
+ cfs = container_of(stream, struct ctf_file_stream,
+ parent);
+ stream_pos = &cfs->pos;
+
+ index = &g_array_index(stream_pos->packet_index,
+ struct packet_index, 0);
+ if (index->timestamp_begin < begin)
+ begin = index->timestamp_begin;
+ }
+ }
+
+ return begin;
+
+error:
+ return -1ULL;
+}
+
+static
+uint64_t ctf_timestamp_end(struct trace_descriptor *descriptor,
+ struct bt_trace_handle *handle)
+{
+ struct ctf_trace *tin;
+ uint64_t end = 0;
+ int i, j;
+
+ tin = container_of(descriptor, struct ctf_trace, parent);
+
+ if (!tin)
+ goto error;
+
+ /* for each stream_class */
+ for (i = 0; i < tin->streams->len; i++) {
+ struct ctf_stream_declaration *stream_class;
+
+ stream_class = g_ptr_array_index(tin->streams, i);
+ /* for each file_stream */
+ for (j = 0; j < stream_class->streams->len; j++) {
+ struct ctf_stream_definition *stream;
+ struct ctf_file_stream *cfs;
+ struct ctf_stream_pos *stream_pos;
+ struct packet_index *index;
+
+ stream = g_ptr_array_index(stream_class->streams, j);
+ cfs = container_of(stream, struct ctf_file_stream,
+ parent);
+ stream_pos = &cfs->pos;
+
+ index = &g_array_index(stream_pos->packet_index,
+ struct packet_index,
+ stream_pos->packet_index->len - 1);
+ if (index->timestamp_end > end)
+ end = index->timestamp_end;
+ }
+ }
+
+ return end;
+
+error:
+ return -1ULL;
+}
+
/*
* Update stream current timestamp, keep at clock frequency.
*/
static
-void ctf_update_timestamp(struct ctf_stream *stream,
+void ctf_update_timestamp(struct ctf_stream_definition *stream,
struct definition_integer *integer_definition)
{
struct declaration_integer *integer_declaration =
* applying offsets as needed (unix time).
*/
void ctf_print_timestamp(FILE *fp,
- struct ctf_stream *stream,
+ struct ctf_stream_definition *stream,
uint64_t timestamp)
{
uint64_t ts_sec = 0, ts_nsec;
- struct ctf_trace *trace = stream->stream_class->trace;
- struct trace_collection *tc = trace->collection;
- uint64_t tc_offset = tc->single_clock_offset_avg;
- if (stream->current_clock->freq == 1000000000ULL) {
- ts_nsec = timestamp;
+ if (opt_clock_raw) {
+ ts_nsec = ctf_get_timestamp_raw(stream, timestamp);
} else {
- ts_nsec = (uint64_t) ((double) timestamp * 1000000000.0
- / (double) stream->current_clock->freq);
+ ts_nsec = ctf_get_timestamp(stream, timestamp);
}
- /* Add offsets */
- if (!opt_clock_raw) {
- ts_nsec += tc_offset;
- }
+ /* Add command-line offset */
ts_sec += opt_clock_offset;
ts_sec += ts_nsec / NSEC_PER_SEC;
}
static
-int ctf_read_event(struct stream_pos *ppos, struct ctf_stream *stream)
+int ctf_read_event(struct stream_pos *ppos, struct ctf_stream_definition *stream)
{
struct ctf_stream_pos *pos =
container_of(ppos, struct ctf_stream_pos, parent);
- struct ctf_stream_class *stream_class = stream->stream_class;
- struct ctf_stream_event *event;
+ struct ctf_stream_declaration *stream_class = stream->stream_class;
+ struct ctf_event_definition *event;
uint64_t id = 0;
int ret;
}
static
-int ctf_write_event(struct stream_pos *pos, struct ctf_stream *stream)
+int ctf_write_event(struct stream_pos *pos, struct ctf_stream_definition *stream)
{
- struct ctf_stream_class *stream_class = stream->stream_class;
- struct ctf_stream_event *event;
+ struct ctf_stream_declaration *stream_class = stream->stream_class;
+ struct ctf_event_definition *event;
uint64_t id;
int ret;
(void) g_array_free(pos->packet_index, TRUE);
}
-void ctf_packet_seek(struct stream_pos *stream_pos, size_t offset, int whence)
+/*
+ * for SEEK_CUR: go to next packet.
+ * for SEEK_POS: go to packet numer (index).
+ */
+void ctf_packet_seek(struct stream_pos *stream_pos, size_t index, int whence)
{
struct ctf_stream_pos *pos =
container_of(stream_pos, struct ctf_stream_pos, parent);
container_of(pos, struct ctf_file_stream, pos);
int ret;
off_t off;
- struct packet_index *index;
+ struct packet_index *packet_index;
if (pos->prot == PROT_WRITE && pos->content_size_loc)
*pos->content_size_loc = pos->offset;
switch (whence) {
case SEEK_CUR:
/* The writer will add padding */
- assert(pos->offset + offset == pos->packet_size);
pos->mmap_offset += WRITE_PACKET_LEN / CHAR_BIT;
break;
case SEEK_SET:
- assert(offset == 0); /* only seek supported for now */
+ assert(index == 0); /* only seek supported for now */
pos->cur_index = 0;
break;
default:
switch (whence) {
case SEEK_CUR:
{
- uint32_t events_discarded_diff;
+ uint64_t events_discarded_diff;
if (pos->offset == EOF) {
return;
}
/* For printing discarded event count */
- index = &g_array_index(pos->packet_index,
+ packet_index = &g_array_index(pos->packet_index,
struct packet_index, pos->cur_index);
- events_discarded_diff = index->events_discarded;
+ events_discarded_diff = packet_index->events_discarded;
file_stream->parent.prev_timestamp_end =
- index->timestamp_end;
+ packet_index->timestamp_end;
if (pos->cur_index > 0) {
- index = &g_array_index(pos->packet_index,
+ packet_index = &g_array_index(pos->packet_index,
struct packet_index,
pos->cur_index - 1);
- events_discarded_diff -= index->events_discarded;
+ events_discarded_diff -= packet_index->events_discarded;
+ /*
+ * Deal with 32-bit wrap-around if the
+ * tracer provided a 32-bit field.
+ */
+ if (packet_index->events_discarded_len == 32) {
+ events_discarded_diff = (uint32_t) events_discarded_diff;
+ }
}
file_stream->parent.events_discarded = events_discarded_diff;
file_stream->parent.prev_timestamp = file_stream->parent.timestamp;
/* The reader will expect us to skip padding */
- assert(pos->offset + offset == pos->content_size);
++pos->cur_index;
break;
}
case SEEK_SET:
- if (offset == 0)
- pos->cur_index = 0;
+ pos->cur_index = index;
file_stream->parent.prev_timestamp = 0;
file_stream->parent.prev_timestamp_end = 0;
break;
* be printed in the output.
*/
if (file_stream->parent.events_discarded) {
- fflush(stdout);
- fprintf(stderr, "[warning] Tracer discarded %d events at end of stream between [",
- file_stream->parent.events_discarded);
- ctf_print_timestamp(stderr, &file_stream->parent,
- file_stream->parent.prev_timestamp);
- fprintf(stderr, "] and [");
- ctf_print_timestamp(stderr, &file_stream->parent,
- file_stream->parent.prev_timestamp_end);
- fprintf(stderr, "]. You should consider increasing the buffer size.\n");
- fflush(stderr);
+ /*
+ * We need to check if we are in trace
+ * read or called from packet indexing.
+ * In this last case, the collection is
+ * not there, so we cannot print the
+ * timestamps.
+ */
+ if ((&file_stream->parent)->stream_class->trace->collection) {
+ fflush(stdout);
+ fprintf(stderr, "[warning] Tracer discarded %" PRIu64 " events at end of stream between [",
+ file_stream->parent.events_discarded);
+ ctf_print_timestamp(stderr, &file_stream->parent,
+ file_stream->parent.prev_timestamp);
+ fprintf(stderr, "] and [");
+ ctf_print_timestamp(stderr, &file_stream->parent,
+ file_stream->parent.prev_timestamp_end);
+ fprintf(stderr, "]. You should consider recording a new trace with larger buffers or with fewer events enabled.\n");
+ fflush(stderr);
+ }
file_stream->parent.events_discarded = 0;
}
pos->offset = EOF;
return;
}
- index = &g_array_index(pos->packet_index, struct packet_index,
+ packet_index = &g_array_index(pos->packet_index, struct packet_index,
pos->cur_index);
- pos->mmap_offset = index->offset;
+ pos->mmap_offset = packet_index->offset;
/* Lookup context/packet size in index */
- file_stream->parent.timestamp = index->timestamp_begin;
- pos->content_size = index->content_size;
- pos->packet_size = index->packet_size;
- if (index->data_offset < index->content_size) {
+ file_stream->parent.timestamp = packet_index->timestamp_begin;
+ pos->content_size = packet_index->content_size;
+ pos->packet_size = packet_index->packet_size;
+ if (packet_index->data_offset < packet_index->content_size) {
pos->offset = 0; /* will read headers */
- } else if (index->data_offset == index->content_size) {
+ } else if (packet_index->data_offset == packet_index->content_size) {
/* empty packet */
- pos->offset = index->data_offset;
- offset = 0;
+ pos->offset = packet_index->data_offset;
whence = SEEK_CUR;
goto read_next_packet;
} else {
memcpy(td->uuid, header.uuid, sizeof(header.uuid));
CTF_TRACE_SET_FIELD(td, uuid);
} else {
- if (uuid_compare(header.uuid, td->uuid))
+ if (babeltrace_uuid_compare(header.uuid, td->uuid))
return -EINVAL;
}
* because its size includes garbage at the end (after final
* \0). This is the allocated size, not the actual string size.
*/
- out = open_memstream(buf, &size);
+ out = babeltrace_open_memstream(buf, &size);
if (out == NULL) {
perror("Metadata open_memstream");
return -errno;
break;
}
}
- fclose(out); /* flush the buffer */
+ /* close to flush the buffer */
+ ret = babeltrace_close_memstream(buf, &size, out);
+ if (ret < 0) {
+ perror("babeltrace_flush_memstream");
+ fclose(in);
+ return -errno;
+ }
fclose(in);
/* open for reading */
- *fp = fmemopen(*buf, strlen(*buf), "rb");
+ *fp = babeltrace_fmemopen(*buf, strlen(*buf), "rb");
if (!*fp) {
perror("Metadata fmemopen");
return -errno;
static
int ctf_open_trace_metadata_read(struct ctf_trace *td,
- void (*packet_seek)(struct stream_pos *pos, size_t offset,
+ void (*packet_seek)(struct stream_pos *pos, size_t index,
int whence), FILE *metadata_fp)
{
struct ctf_scanner *scanner;
ctf_scanner_free(scanner);
end_scanner_alloc:
end_packet_read:
- fclose(fp);
+ if (fp)
+ fclose(fp);
free(buf);
end_stream:
close(metadata_stream->pos.fd);
}
static
-struct ctf_stream_event *create_event_definitions(struct ctf_trace *td,
- struct ctf_stream *stream,
- struct ctf_event *event)
+struct ctf_event_definition *create_event_definitions(struct ctf_trace *td,
+ struct ctf_stream_definition *stream,
+ struct ctf_event_declaration *event)
{
- struct ctf_stream_event *stream_event = g_new0(struct ctf_stream_event, 1);
+ struct ctf_event_definition *stream_event = g_new0(struct ctf_event_definition, 1);
if (event->context_decl) {
struct definition *definition =
struct definition_struct, p);
stream->parent_def_scope = stream_event->event_fields->p.scope;
}
+ stream_event->stream = stream;
return stream_event;
error:
}
static
-int create_stream_definitions(struct ctf_trace *td, struct ctf_stream *stream)
+int create_stream_definitions(struct ctf_trace *td, struct ctf_stream_definition *stream)
{
- struct ctf_stream_class *stream_class;
+ struct ctf_stream_declaration *stream_class;
int ret;
int i;
stream->events_by_id = g_ptr_array_new();
g_ptr_array_set_size(stream->events_by_id, stream_class->events_by_id->len);
for (i = 0; i < stream->events_by_id->len; i++) {
- struct ctf_event *event = g_ptr_array_index(stream_class->events_by_id, i);
- struct ctf_stream_event *stream_event;
+ struct ctf_event_declaration *event = g_ptr_array_index(stream_class->events_by_id, i);
+ struct ctf_event_definition *stream_event;
if (!event)
continue;
error_event:
for (i = 0; i < stream->events_by_id->len; i++) {
- struct ctf_stream_event *stream_event = g_ptr_array_index(stream->events_by_id, i);
+ struct ctf_event_definition *stream_event = g_ptr_array_index(stream->events_by_id, i);
if (stream_event)
g_free(stream_event);
}
int create_stream_packet_index(struct ctf_trace *td,
struct ctf_file_stream *file_stream)
{
- struct ctf_stream_class *stream;
+ struct ctf_stream_declaration *stream;
int len_index;
struct ctf_stream_pos *pos;
struct stat filestats;
struct definition_array *defarray;
struct definition *field;
uint64_t i;
- uint8_t uuidval[UUID_LEN];
+ uint8_t uuidval[BABELTRACE_UUID_LEN];
field = struct_definition_get_field_from_index(file_stream->parent.trace_packet_header, len_index);
assert(field->declaration->id == CTF_TYPE_ARRAY);
defarray = container_of(field, struct definition_array, p);
- assert(array_len(defarray) == UUID_LEN);
+ assert(array_len(defarray) == BABELTRACE_UUID_LEN);
- for (i = 0; i < UUID_LEN; i++) {
+ for (i = 0; i < BABELTRACE_UUID_LEN; i++) {
struct definition *elem;
elem = array_index(defarray, i);
uuidval[i] = get_unsigned_int(elem);
}
- ret = uuid_compare(td->uuid, uuidval);
+ ret = babeltrace_uuid_compare(td->uuid, uuidval);
if (ret) {
fprintf(stderr, "[error] Unique Universal Identifiers do not match.\n");
return -EINVAL;
field = struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index);
packet_index.events_discarded = get_unsigned_int(field);
+ packet_index.events_discarded_len = get_int_len(field);
}
} else {
/* Use file size for packet size */
}
static
-int create_trace_definitions(struct ctf_trace *td, struct ctf_stream *stream)
+int create_trace_definitions(struct ctf_trace *td, struct ctf_stream_definition *stream)
{
int ret;
*/
static
int ctf_open_file_stream_read(struct ctf_trace *td, const char *path, int flags,
- void (*packet_seek)(struct stream_pos *pos, size_t offset,
+ void (*packet_seek)(struct stream_pos *pos, size_t index,
int whence))
{
int ret;
static
int ctf_open_trace_read(struct ctf_trace *td,
const char *path, int flags,
- void (*packet_seek)(struct stream_pos *pos, size_t offset,
+ void (*packet_seek)(struct stream_pos *pos, size_t index,
int whence), FILE *metadata_fp)
{
int ret;
/* Open trace directory */
td->dir = opendir(path);
if (!td->dir) {
- fprintf(stderr, "[error] Unable to open trace directory.\n");
+ fprintf(stderr, "[error] Unable to open trace directory \"%s\".\n", path);
ret = -ENOENT;
goto error;
}
td->dirfd = open(path, 0);
if (td->dirfd < 0) {
- fprintf(stderr, "[error] Unable to open trace directory file descriptor.\n");
+ fprintf(stderr, "[error] Unable to open trace directory file descriptor for path \"%s\".\n", path);
perror("Trace directory open");
ret = -errno;
goto error_dirfd;
ret = ctf_open_trace_metadata_read(td, packet_seek, metadata_fp);
if (ret) {
+ fprintf(stderr, "[warning] Unable to open trace metadata for path \"%s\".\n", path);
goto error_metadata;
}
static
struct trace_descriptor *ctf_open_trace(const char *path, int flags,
- void (*packet_seek)(struct stream_pos *pos, size_t offset,
+ void (*packet_seek)(struct stream_pos *pos, size_t index,
int whence), FILE *metadata_fp)
{
struct ctf_trace *td;
int prepare_mmap_stream_definition(struct ctf_trace *td,
struct ctf_file_stream *file_stream)
{
- struct ctf_stream_class *stream;
+ struct ctf_stream_declaration *stream;
uint64_t stream_id = 0;
int ret;
static
int ctf_open_mmap_stream_read(struct ctf_trace *td,
struct mmap_stream *mmap_info,
- void (*packet_seek)(struct stream_pos *pos, size_t offset,
+ void (*packet_seek)(struct stream_pos *pos, size_t index,
int whence))
{
int ret;
int ctf_open_mmap_trace_read(struct ctf_trace *td,
struct mmap_stream_list *mmap_list,
- void (*packet_seek)(struct stream_pos *pos, size_t offset,
+ void (*packet_seek)(struct stream_pos *pos, size_t index,
int whence),
FILE *metadata_fp)
{
static
struct trace_descriptor *ctf_open_mmap_trace(
struct mmap_stream_list *mmap_list,
- void (*packet_seek)(struct stream_pos *pos, size_t offset, int whence),
+ void (*packet_seek)(struct stream_pos *pos, size_t index,
+ int whence),
FILE *metadata_fp)
{
struct ctf_trace *td;
if (td->streams) {
for (i = 0; i < td->streams->len; i++) {
- struct ctf_stream_class *stream;
+ struct ctf_stream_declaration *stream;
int j;
stream = g_ptr_array_index(td->streams, i);
}
g_ptr_array_free(td->streams, TRUE);
}
+
+ if (td->event_declarations) {
+ for (i = 0; i < td->event_declarations->len; i++) {
+ struct bt_ctf_event_decl *event;
+
+ event = g_ptr_array_index(td->event_declarations, i);
+ if (event->context_decl)
+ g_ptr_array_free(event->context_decl, TRUE);
+ if (event->fields_decl)
+ g_ptr_array_free(event->fields_decl, TRUE);
+ if (event->packet_header_decl)
+ g_ptr_array_free(event->packet_header_decl, TRUE);
+ if (event->event_context_decl)
+ g_ptr_array_free(event->event_context_decl, TRUE);
+ if (event->event_header_decl)
+ g_ptr_array_free(event->event_header_decl, TRUE);
+ if (event->packet_context_decl)
+ g_ptr_array_free(event->packet_context_decl, TRUE);
+ g_free(event);
+ }
+ g_ptr_array_free(td->event_declarations, TRUE);
+ }
closedir(td->dir);
g_free(td);
}
+static
+void ctf_set_context(struct trace_descriptor *descriptor,
+ struct bt_context *ctx)
+{
+ struct ctf_trace *td = container_of(descriptor, struct ctf_trace,
+ parent);
+
+ td->ctx = ctx;
+}
+
+static
+void ctf_set_handle(struct trace_descriptor *descriptor,
+ struct bt_trace_handle *handle)
+{
+ struct ctf_trace *td = container_of(descriptor, struct ctf_trace,
+ parent);
+
+ td->handle = handle;
+}
+
void __attribute__((constructor)) ctf_init(void)
{
int ret;
projects / babeltrace.git / blobdiff