*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
*/
#include <babeltrace/format.h>
#include <babeltrace/ctf/events-internal.h>
#include <babeltrace/trace-handle-internal.h>
#include <babeltrace/context-internal.h>
-#include <babeltrace/uuid.h>
+#include <babeltrace/compat/uuid.h>
#include <babeltrace/endian.h>
+#include <babeltrace/ctf/ctf-index.h>
#include <inttypes.h>
#include <stdio.h>
#include <sys/mman.h>
#include "metadata/ctf-parser.h"
#include "metadata/ctf-ast.h"
#include "events-private.h"
-#include "memstream.h"
+#include <babeltrace/compat/memstream.h>
+#include <babeltrace/compat/fcntl.h>
+
+#define LOG2_CHAR_BIT 3
+
+/*
+ * Length of first attempt at mapping a packet header, in bits.
+ */
+#define DEFAULT_HEADER_LEN (getpagesize() * CHAR_BIT)
/*
- * We currently simply map a page to read the packet header and packet
- * context to get the packet length and content length. (in bits)
+ * Lenght of packet to write, in bits.
*/
-#define MAX_PACKET_HEADER_LEN (getpagesize() * CHAR_BIT)
#define WRITE_PACKET_LEN (getpagesize() * 8 * CHAR_BIT)
#ifndef min
#define NSEC_PER_SEC 1000000000ULL
+#define INDEX_PATH "./index/%s.idx"
+
int opt_clock_cycles,
opt_clock_seconds,
opt_clock_date,
opt_clock_gmt;
uint64_t opt_clock_offset;
+uint64_t opt_clock_offset_ns;
extern int yydebug;
+/*
+ * TODO: babeltrace_ctf_console_output ensures that we only print
+ * discarded events when ctf-text plugin is used. Should be cleaned up
+ * with the plugin system redesign.
+ */
+int babeltrace_ctf_console_output;
+
static
-struct trace_descriptor *ctf_open_trace(const char *path, int flags,
- void (*packet_seek)(struct stream_pos *pos, size_t index,
+struct bt_trace_descriptor *ctf_open_trace(const char *path, int flags,
+ void (*packet_seek)(struct bt_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 index,
+struct bt_trace_descriptor *ctf_open_mmap_trace(
+ struct bt_mmap_stream_list *mmap_list,
+ void (*packet_seek)(struct bt_stream_pos *pos, size_t index,
int whence),
FILE *metadata_fp);
static
-void ctf_set_context(struct trace_descriptor *descriptor,
+void ctf_set_context(struct bt_trace_descriptor *descriptor,
struct bt_context *ctx);
static
-void ctf_set_handle(struct trace_descriptor *descriptor,
+void ctf_set_handle(struct bt_trace_descriptor *descriptor,
struct bt_trace_handle *handle);
static
-void ctf_close_trace(struct trace_descriptor *descriptor);
+int ctf_close_trace(struct bt_trace_descriptor *descriptor);
static
-uint64_t ctf_timestamp_begin(struct trace_descriptor *descriptor,
+uint64_t ctf_timestamp_begin(struct bt_trace_descriptor *descriptor,
struct bt_trace_handle *handle, enum bt_clock_type type);
static
-uint64_t ctf_timestamp_end(struct trace_descriptor *descriptor,
+uint64_t ctf_timestamp_end(struct bt_trace_descriptor *descriptor,
struct bt_trace_handle *handle, enum bt_clock_type type);
static
-int ctf_convert_index_timestamp(struct trace_descriptor *tdp);
+int ctf_convert_index_timestamp(struct bt_trace_descriptor *tdp);
static
rw_dispatch read_dispatch_table[] = {
};
static
-struct format ctf_format = {
+struct bt_format ctf_format = {
.open_trace = ctf_open_trace,
.open_mmap_trace = ctf_open_mmap_trace,
.close_trace = ctf_close_trace,
};
static
-uint64_t ctf_timestamp_begin(struct trace_descriptor *descriptor,
+uint64_t ctf_timestamp_begin(struct bt_trace_descriptor *descriptor,
struct bt_trace_handle *handle, enum bt_clock_type type)
{
struct ctf_trace *tin;
parent);
stream_pos = &cfs->pos;
- if (!stream_pos->packet_real_index)
+ if (!stream_pos->packet_index)
goto error;
- if (stream_pos->packet_real_index->len <= 0)
+ if (stream_pos->packet_index->len <= 0)
continue;
+ index = &g_array_index(stream_pos->packet_index,
+ struct packet_index,
+ stream_pos->packet_index->len - 1);
if (type == BT_CLOCK_REAL) {
- index = &g_array_index(stream_pos->packet_real_index,
- struct packet_index,
- stream_pos->packet_real_index->len - 1);
+ if (index->ts_real.timestamp_begin < begin)
+ begin = index->ts_real.timestamp_begin;
} else if (type == BT_CLOCK_CYCLES) {
- index = &g_array_index(stream_pos->packet_cycles_index,
- struct packet_index,
- stream_pos->packet_real_index->len - 1);
-
+ if (index->ts_cycles.timestamp_begin < begin)
+ begin = index->ts_cycles.timestamp_begin;
} else {
goto error;
}
- if (index->timestamp_begin < begin)
- begin = index->timestamp_begin;
}
}
}
static
-uint64_t ctf_timestamp_end(struct trace_descriptor *descriptor,
+uint64_t ctf_timestamp_end(struct bt_trace_descriptor *descriptor,
struct bt_trace_handle *handle, enum bt_clock_type type)
{
struct ctf_trace *tin;
parent);
stream_pos = &cfs->pos;
- if (!stream_pos->packet_real_index)
+ if (!stream_pos->packet_index)
goto error;
- if (stream_pos->packet_real_index->len <= 0)
+ if (stream_pos->packet_index->len <= 0)
continue;
+ index = &g_array_index(stream_pos->packet_index,
+ struct packet_index,
+ stream_pos->packet_index->len - 1);
if (type == BT_CLOCK_REAL) {
- index = &g_array_index(stream_pos->packet_real_index,
- struct packet_index,
- stream_pos->packet_real_index->len - 1);
+ if (index->ts_real.timestamp_end > end)
+ end = index->ts_real.timestamp_end;
} else if (type == BT_CLOCK_CYCLES) {
- index = &g_array_index(stream_pos->packet_cycles_index,
- struct packet_index,
- stream_pos->packet_real_index->len - 1);
-
+ if (index->ts_cycles.timestamp_end > end)
+ end = index->ts_cycles.timestamp_end;
} else {
goto error;
}
- if (index->timestamp_end > end)
- end = index->timestamp_end;
}
}
uint64_t oldval, newval, updateval;
if (unlikely(integer_declaration->len == 64)) {
- stream->prev_cycles_timestamp = stream->cycles_timestamp;
stream->cycles_timestamp = integer_definition->value._unsigned;
- stream->prev_real_timestamp = ctf_get_real_timestamp(stream,
- stream->prev_cycles_timestamp);
stream->real_timestamp = ctf_get_real_timestamp(stream,
stream->cycles_timestamp);
return;
updateval = stream->cycles_timestamp;
updateval &= ~((1ULL << integer_declaration->len) - 1);
updateval += newval;
- stream->prev_cycles_timestamp = stream->cycles_timestamp;
stream->cycles_timestamp = updateval;
/* convert to real timestamp */
- stream->prev_real_timestamp = ctf_get_real_timestamp(stream,
- stream->prev_cycles_timestamp);
stream->real_timestamp = ctf_get_real_timestamp(stream,
stream->cycles_timestamp);
}
* Print timestamp, rescaling clock frequency to nanoseconds and
* applying offsets as needed (unix time).
*/
+static
void ctf_print_timestamp_real(FILE *fp,
struct ctf_stream_definition *stream,
uint64_t timestamp)
ts_nsec = timestamp;
+ /* Add command-line offset in ns*/
+ ts_nsec += opt_clock_offset_ns;
+
/* Add command-line offset */
ts_sec += opt_clock_offset;
/*
* Print timestamp, in cycles
*/
+static
void ctf_print_timestamp_cycles(FILE *fp,
struct ctf_stream_definition *stream,
uint64_t timestamp)
}
static
-int ctf_read_event(struct stream_pos *ppos, struct ctf_stream_definition *stream)
+void print_uuid(FILE *fp, unsigned char *uuid)
+{
+ int i;
+
+ for (i = 0; i < BABELTRACE_UUID_LEN; i++)
+ fprintf(fp, "%x", (unsigned int) uuid[i]);
+}
+
+/*
+ * Discarded events can be either:
+ * - discarded after end of previous buffer due to buffer full:
+ * happened within range: [ prev_timestamp_end, timestamp_begin ]
+ * - discarded within current buffer due to either event too large or
+ * nested wrap-around:
+ * happened within range: [ timestamp_begin, timestamp_end ]
+ *
+ * Given we have discarded counters of those two types merged into the
+ * events_discarded counter, we need to use the union of those ranges:
+ * [ prev_timestamp_end, timestamp_end ]
+ */
+static
+void ctf_print_discarded(FILE *fp, struct ctf_stream_definition *stream)
+{
+ if (!stream->events_discarded || !babeltrace_ctf_console_output) {
+ return;
+ }
+ fflush(stdout);
+ fprintf(fp, "[warning] Tracer discarded %" PRIu64 " events between [",
+ stream->events_discarded);
+ if (opt_clock_cycles) {
+ ctf_print_timestamp(fp, stream,
+ stream->prev.cycles.end);
+ fprintf(fp, "] and [");
+ ctf_print_timestamp(fp, stream,
+ stream->current.cycles.end);
+ } else {
+ ctf_print_timestamp(fp, stream,
+ stream->prev.real.end);
+ fprintf(fp, "] and [");
+ ctf_print_timestamp(fp, stream,
+ stream->current.real.end);
+ }
+ fprintf(fp, "] in trace UUID ");
+ print_uuid(fp, stream->stream_class->trace->uuid);
+ if (stream->stream_class->trace->parent.path[0])
+ fprintf(fp, ", at path: \"%s\"",
+ stream->stream_class->trace->parent.path);
+
+ fprintf(fp, ", within stream id %" PRIu64, stream->stream_id);
+ if (stream->path[0])
+ fprintf(fp, ", at relative path: \"%s\"", stream->path);
+ fprintf(fp, ". ");
+ fprintf(fp, "You should consider recording a new trace with larger "
+ "buffers or with fewer events enabled.\n");
+ fflush(fp);
+}
+
+static
+int ctf_read_event(struct bt_stream_pos *ppos, struct ctf_stream_definition *stream)
{
struct ctf_stream_pos *pos =
container_of(ppos, struct ctf_stream_pos, parent);
*/
if (unlikely(pos->offset == EOF))
return EOF;
+
+ /* Stream is inactive for now (live reading). */
+ if (unlikely(pos->content_size == 0))
+ return EAGAIN;
+
+ /*
+ * Packet seeked to by ctf_pos_get_event() only contains
+ * headers, no event. Consider stream as inactive (live
+ * reading).
+ */
+ if (unlikely(pos->data_offset == pos->content_size))
+ return EAGAIN;
+
assert(pos->offset < pos->content_size);
/* Read event header */
if (likely(stream->stream_event_header)) {
struct definition_integer *integer_definition;
- struct definition *variant;
+ struct bt_definition *variant;
ret = generic_rw(ppos, &stream->stream_event_header->p);
if (unlikely(ret))
goto error;
/* lookup event id */
- integer_definition = lookup_integer(&stream->stream_event_header->p, "id", FALSE);
+ integer_definition = bt_lookup_integer(&stream->stream_event_header->p, "id", FALSE);
if (integer_definition) {
id = integer_definition->value._unsigned;
} else {
struct definition_enum *enum_definition;
- enum_definition = lookup_enum(&stream->stream_event_header->p, "id", FALSE);
+ enum_definition = bt_lookup_enum(&stream->stream_event_header->p, "id", FALSE);
if (enum_definition) {
id = enum_definition->integer->value._unsigned;
}
}
- variant = lookup_variant(&stream->stream_event_header->p, "v");
+ variant = bt_lookup_variant(&stream->stream_event_header->p, "v");
if (variant) {
- integer_definition = lookup_integer(variant, "id", FALSE);
+ integer_definition = bt_lookup_integer(variant, "id", FALSE);
if (integer_definition) {
id = integer_definition->value._unsigned;
}
/* lookup timestamp */
stream->has_timestamp = 0;
- integer_definition = lookup_integer(&stream->stream_event_header->p, "timestamp", FALSE);
+ integer_definition = bt_lookup_integer(&stream->stream_event_header->p, "timestamp", FALSE);
if (integer_definition) {
ctf_update_timestamp(stream, integer_definition);
stream->has_timestamp = 1;
} else {
if (variant) {
- integer_definition = lookup_integer(variant, "timestamp", FALSE);
+ integer_definition = bt_lookup_integer(variant, "timestamp", FALSE);
if (integer_definition) {
ctf_update_timestamp(stream, integer_definition);
stream->has_timestamp = 1;
goto error;
}
+ if (pos->last_offset == pos->offset) {
+ fprintf(stderr, "[error] Invalid 0 byte event encountered.\n");
+ return -EINVAL;
+ }
+
return 0;
error:
- fprintf(stderr, "[error] Unexpected end of stream. Either the trace data stream is corrupted or metadata description does not match data layout.\n");
+ fprintf(stderr, "[error] Unexpected end of packet. Either the trace data stream is corrupted or metadata description does not match data layout.\n");
return ret;
}
static
-int ctf_write_event(struct stream_pos *pos, struct ctf_stream_definition *stream)
+int ctf_write_event(struct bt_stream_pos *pos, struct ctf_stream_definition *stream)
{
struct ctf_stream_declaration *stream_class = stream->stream_class;
struct ctf_event_definition *event;
return ret;
}
-void ctf_init_pos(struct ctf_stream_pos *pos, int fd, int open_flags)
+/*
+ * One side-effect of this function is to unmap pos mmap base if one is
+ * mapped.
+ */
+static
+int find_data_offset(struct ctf_stream_pos *pos,
+ struct ctf_file_stream *file_stream,
+ struct packet_index *packet_index)
{
- pos->fd = fd;
- pos->mmap_offset = 0;
- pos->packet_size = 0;
- pos->content_size = 0;
- pos->content_size_loc = NULL;
+ uint64_t packet_map_len = DEFAULT_HEADER_LEN, tmp_map_len;
+ struct stat filestats;
+ size_t filesize;
+ int ret;
+
+ pos = &file_stream->pos;
+
+ ret = fstat(pos->fd, &filestats);
+ if (ret < 0)
+ return ret;
+ filesize = filestats.st_size;
+
+ /* Deal with empty files */
+ if (!filesize) {
+ return 0;
+ }
+
+begin:
+ if (filesize - pos->mmap_offset < (packet_map_len >> LOG2_CHAR_BIT)) {
+ packet_map_len = (filesize - pos->mmap_offset) << LOG2_CHAR_BIT;
+ }
+
+ if (pos->base_mma) {
+ /* unmap old base */
+ ret = munmap_align(pos->base_mma);
+ if (ret) {
+ fprintf(stderr, "[error] Unable to unmap old base: %s.\n",
+ strerror(errno));
+ return ret;
+ }
+ pos->base_mma = NULL;
+ }
+ /* map new base. Need mapping length from header. */
+ pos->base_mma = mmap_align(packet_map_len >> LOG2_CHAR_BIT, PROT_READ,
+ MAP_PRIVATE, pos->fd, pos->mmap_offset);
+ assert(pos->base_mma != MAP_FAILED);
+
+ pos->content_size = packet_map_len;
+ pos->packet_size = packet_map_len;
+ pos->offset = 0; /* Position of the packet header */
+
+ /* update trace_packet_header and stream_packet_context */
+ if (pos->prot == PROT_READ && file_stream->parent.trace_packet_header) {
+ /* Read packet header */
+ ret = generic_rw(&pos->parent, &file_stream->parent.trace_packet_header->p);
+ if (ret) {
+ if (ret == -EFAULT)
+ goto retry;
+ }
+ }
+ if (pos->prot == PROT_READ && file_stream->parent.stream_packet_context) {
+ /* Read packet context */
+ ret = generic_rw(&pos->parent, &file_stream->parent.stream_packet_context->p);
+ if (ret) {
+ if (ret == -EFAULT)
+ goto retry;
+ }
+ }
+ packet_index->data_offset = pos->offset;
+
+ /* unmap old base */
+ ret = munmap_align(pos->base_mma);
+ if (ret) {
+ fprintf(stderr, "[error] Unable to unmap old base: %s.\n",
+ strerror(errno));
+ return ret;
+ }
pos->base_mma = NULL;
- pos->offset = 0;
- pos->dummy = false;
- pos->cur_index = 0;
- pos->packet_real_index = NULL;
- if (fd >= 0)
- pos->packet_cycles_index = g_array_new(FALSE, TRUE,
- sizeof(struct packet_index));
- else
- pos->packet_cycles_index = NULL;
+
+ return 0;
+
+ /* Retry with larger mapping */
+retry:
+ if (packet_map_len == ((filesize - pos->mmap_offset) << LOG2_CHAR_BIT)) {
+ /*
+ * Reached EOF, but still expecting header/context data.
+ */
+ fprintf(stderr, "[error] Reached end of file, but still expecting header or context fields.\n");
+ return -EFAULT;
+ }
+ /* Double the mapping len, and retry */
+ tmp_map_len = packet_map_len << 1;
+ if (tmp_map_len >> 1 != packet_map_len) {
+ /* Overflow */
+ fprintf(stderr, "[error] Packet mapping length overflow\n");
+ return -EFAULT;
+ }
+ packet_map_len = tmp_map_len;
+ goto begin;
+}
+
+
+int ctf_init_pos(struct ctf_stream_pos *pos, struct bt_trace_descriptor *trace,
+ int fd, int open_flags)
+{
+ pos->fd = fd;
+ if (fd >= 0) {
+ pos->packet_index = g_array_new(FALSE, TRUE,
+ sizeof(struct packet_index));
+ } else {
+ pos->packet_index = NULL;
+ }
switch (open_flags & O_ACCMODE) {
case O_RDONLY:
pos->prot = PROT_READ;
pos->flags = MAP_PRIVATE;
pos->parent.rw_table = read_dispatch_table;
pos->parent.event_cb = ctf_read_event;
+ pos->parent.trace = trace;
break;
case O_RDWR:
- pos->prot = PROT_WRITE; /* Write has priority */
+ pos->prot = PROT_READ | PROT_WRITE;
pos->flags = MAP_SHARED;
pos->parent.rw_table = write_dispatch_table;
pos->parent.event_cb = ctf_write_event;
+ pos->parent.trace = trace;
if (fd >= 0)
ctf_packet_seek(&pos->parent, 0, SEEK_SET); /* position for write */
break;
default:
assert(0);
}
+ return 0;
}
-void ctf_fini_pos(struct ctf_stream_pos *pos)
+int ctf_fini_pos(struct ctf_stream_pos *pos)
{
- int ret;
-
- if (pos->prot == PROT_WRITE && pos->content_size_loc)
+ if ((pos->prot & PROT_WRITE) && pos->content_size_loc)
*pos->content_size_loc = pos->offset;
if (pos->base_mma) {
+ int ret;
+
/* unmap old base */
ret = munmap_align(pos->base_mma);
if (ret) {
fprintf(stderr, "[error] Unable to unmap old base: %s.\n",
strerror(errno));
- assert(0);
+ return -1;
}
}
- (void) g_array_free(pos->packet_cycles_index, TRUE);
- (void) g_array_free(pos->packet_real_index, TRUE);
+ if (pos->packet_index)
+ (void) g_array_free(pos->packet_index, TRUE);
+ return 0;
+}
+
+void ctf_update_current_packet_index(struct ctf_stream_definition *stream,
+ struct packet_index *prev_index,
+ struct packet_index *cur_index)
+{
+ uint64_t events_discarded_diff;
+
+ /* Update packet index time information */
+
+ /* Current packet begin/end */
+ stream->current.real.begin =
+ cur_index->ts_real.timestamp_begin;
+ stream->current.cycles.begin =
+ cur_index->ts_cycles.timestamp_begin;
+ stream->current.real.end =
+ cur_index->ts_real.timestamp_end;
+ stream->current.cycles.end =
+ cur_index->ts_cycles.timestamp_end;
+
+ /* Update packet index discarded event information */
+ events_discarded_diff = cur_index->events_discarded;
+ if (prev_index) {
+ /* Previous packet begin/end */
+ stream->prev.cycles.begin =
+ prev_index->ts_cycles.timestamp_begin;
+ stream->prev.real.begin =
+ prev_index->ts_real.timestamp_begin;
+ stream->prev.cycles.end =
+ prev_index->ts_cycles.timestamp_end;
+ stream->prev.real.end =
+ prev_index->ts_real.timestamp_end;
+
+ events_discarded_diff -= prev_index->events_discarded;
+ /*
+ * Deal with 32-bit wrap-around if the tracer provided a
+ * 32-bit field.
+ */
+ if (prev_index->events_discarded_len == 32) {
+ events_discarded_diff = (uint32_t) events_discarded_diff;
+ }
+ } else {
+ /*
+ * First packet: use current packet info as limits for
+ * previous packet.
+ */
+ stream->prev.cycles.begin =
+ stream->prev.cycles.end =
+ stream->current.cycles.begin;
+ stream->prev.real.begin =
+ stream->prev.real.end =
+ stream->current.real.begin;
+ }
+ stream->events_discarded = events_discarded_diff;
}
/*
* for SEEK_CUR: go to next packet.
- * for SEEK_POS: go to packet numer (index).
+ * for SEEK_SET: go to packet numer (index).
*/
-void ctf_packet_seek(struct stream_pos *stream_pos, size_t index, int whence)
+void ctf_packet_seek(struct bt_stream_pos *stream_pos, size_t index, int whence)
{
struct ctf_stream_pos *pos =
container_of(stream_pos, struct ctf_stream_pos, parent);
struct ctf_file_stream *file_stream =
container_of(pos, struct ctf_file_stream, pos);
int ret;
- off_t off;
- struct packet_index *packet_index;
+ struct packet_index *packet_index, *prev_index;
+
+ switch (whence) {
+ case SEEK_CUR:
+ case SEEK_SET: /* Fall-through */
+ break; /* OK */
+ default:
+ assert(0);
+ }
- if (pos->prot == PROT_WRITE && pos->content_size_loc)
+ if ((pos->prot & PROT_WRITE) && pos->content_size_loc)
*pos->content_size_loc = pos->offset;
if (pos->base_mma) {
* The caller should never ask for ctf_move_pos across packets,
* except to get exactly at the beginning of the next packet.
*/
- if (pos->prot == PROT_WRITE) {
+ if (pos->prot & PROT_WRITE) {
switch (whence) {
case SEEK_CUR:
/* The writer will add padding */
- pos->mmap_offset += WRITE_PACKET_LEN / CHAR_BIT;
+ pos->mmap_offset += pos->packet_size / CHAR_BIT;
break;
case SEEK_SET:
assert(index == 0); /* only seek supported for now */
}
pos->content_size = -1U; /* Unknown at this point */
pos->packet_size = WRITE_PACKET_LEN;
- off = posix_fallocate(pos->fd, pos->mmap_offset,
- pos->packet_size / CHAR_BIT);
- assert(off >= 0);
+ do {
+ ret = bt_posix_fallocate(pos->fd, pos->mmap_offset,
+ pos->packet_size / CHAR_BIT);
+ } while (ret == EINTR);
+ assert(ret == 0);
pos->offset = 0;
} else {
read_next_packet:
switch (whence) {
case SEEK_CUR:
{
- uint64_t events_discarded_diff;
-
if (pos->offset == EOF) {
return;
}
- /* For printing discarded event count */
- packet_index = &g_array_index(pos->packet_cycles_index,
- struct packet_index, pos->cur_index);
- file_stream->parent.prev_cycles_timestamp_end =
- packet_index->timestamp_end;
- file_stream->parent.prev_cycles_timestamp =
- packet_index->timestamp_begin;
-
- packet_index = &g_array_index(pos->packet_real_index,
- struct packet_index, pos->cur_index);
- file_stream->parent.prev_real_timestamp_end =
- packet_index->timestamp_end;
- file_stream->parent.prev_real_timestamp =
- packet_index->timestamp_begin;
-
- events_discarded_diff = packet_index->events_discarded;
- if (pos->cur_index > 0) {
- packet_index = &g_array_index(pos->packet_real_index,
- struct packet_index,
- pos->cur_index - 1);
- 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_real_timestamp = file_stream->parent.real_timestamp;
- file_stream->parent.prev_cycles_timestamp = file_stream->parent.cycles_timestamp;
+ assert(pos->cur_index < pos->packet_index->len);
/* The reader will expect us to skip padding */
++pos->cur_index;
break;
}
case SEEK_SET:
+ if (index >= pos->packet_index->len) {
+ pos->offset = EOF;
+ return;
+ }
pos->cur_index = index;
- file_stream->parent.prev_real_timestamp = 0;
- file_stream->parent.prev_real_timestamp_end = 0;
- file_stream->parent.prev_cycles_timestamp = 0;
- file_stream->parent.prev_cycles_timestamp_end = 0;
break;
default:
assert(0);
}
- if (pos->cur_index >= pos->packet_real_index->len) {
- /*
- * When a stream reaches the end of the
- * file, we need to show the number of
- * events discarded ourselves, because
- * there is no next event scheduled to
- * be printed in the output.
- */
- if (file_stream->parent.events_discarded) {
- /*
- * 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);
- if (opt_clock_cycles) {
- ctf_print_timestamp(stderr,
- &file_stream->parent,
- file_stream->parent.prev_cycles_timestamp);
- fprintf(stderr, "] and [");
- ctf_print_timestamp(stderr, &file_stream->parent,
- file_stream->parent.prev_cycles_timestamp_end);
- } else {
- ctf_print_timestamp(stderr,
- &file_stream->parent,
- file_stream->parent.prev_real_timestamp);
- fprintf(stderr, "] and [");
- ctf_print_timestamp(stderr, &file_stream->parent,
- file_stream->parent.prev_real_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;
- }
+
+ packet_index = &g_array_index(pos->packet_index,
+ struct packet_index, pos->cur_index);
+ if (pos->cur_index > 0) {
+ prev_index = &g_array_index(pos->packet_index,
+ struct packet_index,
+ pos->cur_index - 1);
+ } else {
+ prev_index = NULL;
+ }
+ ctf_update_current_packet_index(&file_stream->parent,
+ prev_index, packet_index);
+
+ if (pos->cur_index >= pos->packet_index->len) {
pos->offset = EOF;
return;
}
- packet_index = &g_array_index(pos->packet_cycles_index,
- struct packet_index,
- pos->cur_index);
- file_stream->parent.cycles_timestamp = packet_index->timestamp_begin;
- packet_index = &g_array_index(pos->packet_real_index,
+ /*
+ * 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->parent.collection) {
+ ctf_print_discarded(stderr, &file_stream->parent);
+ }
+
+ packet_index = &g_array_index(pos->packet_index,
struct packet_index,
pos->cur_index);
- file_stream->parent.real_timestamp = packet_index->timestamp_begin;
- pos->mmap_offset = packet_index->offset;
+ file_stream->parent.cycles_timestamp = packet_index->ts_cycles.timestamp_begin;
+
+ file_stream->parent.real_timestamp = packet_index->ts_real.timestamp_begin;
/* Lookup context/packet size in index */
+ if (packet_index->data_offset == -1) {
+ ret = find_data_offset(pos, file_stream, packet_index);
+ if (ret < 0) {
+ return;
+ }
+ }
pos->content_size = packet_index->content_size;
pos->packet_size = packet_index->packet_size;
- if (packet_index->data_offset < packet_index->content_size) {
+ pos->mmap_offset = packet_index->offset;
+ pos->data_offset = packet_index->data_offset;
+ if (pos->data_offset < packet_index->content_size) {
pos->offset = 0; /* will read headers */
- } else if (packet_index->data_offset == packet_index->content_size) {
+ } else if (pos->data_offset == packet_index->content_size) {
/* empty packet */
pos->offset = packet_index->data_offset;
whence = SEEK_CUR;
}
/* update trace_packet_header and stream_packet_context */
- if (pos->prot != PROT_WRITE && file_stream->parent.trace_packet_header) {
+ if (!(pos->prot & PROT_WRITE) &&
+ file_stream->parent.trace_packet_header) {
/* Read packet header */
ret = generic_rw(&pos->parent, &file_stream->parent.trace_packet_header->p);
assert(!ret);
}
- if (pos->prot != PROT_WRITE && file_stream->parent.stream_packet_context) {
+ if (!(pos->prot & PROT_WRITE) &&
+ file_stream->parent.stream_packet_context) {
/* Read packet context */
ret = generic_rw(&pos->parent, &file_stream->parent.stream_packet_context->p);
assert(!ret);
}
static
-int ctf_open_trace_metadata_packet_read(struct ctf_trace *td, FILE *in,
+int ctf_trace_metadata_packet_read(struct ctf_trace *td, FILE *in,
FILE *out)
{
struct metadata_packet_header header;
memcpy(td->uuid, header.uuid, sizeof(header.uuid));
CTF_TRACE_SET_FIELD(td, uuid);
} else {
- if (babeltrace_uuid_compare(header.uuid, td->uuid))
+ if (bt_uuid_compare(header.uuid, td->uuid))
return -EINVAL;
}
+ if ((header.content_size / CHAR_BIT) < header_sizeof(header))
+ return -EINVAL;
+
toread = (header.content_size / CHAR_BIT) - header_sizeof(header);
for (;;) {
}
static
-int ctf_open_trace_metadata_stream_read(struct ctf_trace *td, FILE **fp,
+int ctf_trace_metadata_stream_read(struct ctf_trace *td, FILE **fp,
char **buf)
{
FILE *in, *out;
- size_t size;
+ size_t size, buflen;
int ret;
in = *fp;
return -errno;
}
for (;;) {
- ret = ctf_open_trace_metadata_packet_read(td, in, out);
+ ret = ctf_trace_metadata_packet_read(td, in, out);
if (ret) {
break;
}
/* close to flush the buffer */
ret = babeltrace_close_memstream(buf, &size, out);
if (ret < 0) {
+ int closeret;
+
perror("babeltrace_flush_memstream");
- fclose(in);
- return -errno;
+ ret = -errno;
+ closeret = fclose(in);
+ if (closeret) {
+ perror("Error in fclose");
+ }
+ return ret;
+ }
+ ret = fclose(in);
+ if (ret) {
+ perror("Error in fclose");
}
- fclose(in);
/* open for reading */
- *fp = babeltrace_fmemopen(*buf, strlen(*buf), "rb");
+ buflen = strlen(*buf);
+ if (!buflen) {
+ *fp = NULL;
+ return -ENOENT;
+ }
+ *fp = babeltrace_fmemopen(*buf, buflen, "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 index,
- int whence), FILE *metadata_fp)
+int ctf_trace_metadata_read(struct ctf_trace *td, FILE *metadata_fp,
+ struct ctf_scanner *scanner, int append)
{
- struct ctf_scanner *scanner;
struct ctf_file_stream *metadata_stream;
FILE *fp;
char *buf = NULL;
- int ret = 0;
+ int ret = 0, closeret;
metadata_stream = g_new0(struct ctf_file_stream, 1);
metadata_stream->pos.last_offset = LAST_OFFSET_POISON;
- if (packet_seek) {
- metadata_stream->pos.packet_seek = packet_seek;
- } else {
- fprintf(stderr, "[error] packet_seek function undefined.\n");
- ret = -1;
- goto end_stream;
- }
-
if (metadata_fp) {
fp = metadata_fp;
+ metadata_stream->pos.fd = -1;
} else {
td->metadata = &metadata_stream->parent;
metadata_stream->pos.fd = openat(td->dirfd, "metadata", O_RDONLY);
if (metadata_stream->pos.fd < 0) {
fprintf(stderr, "Unable to open metadata.\n");
- return metadata_stream->pos.fd;
+ ret = -1;
+ goto end_free;
}
fp = fdopen(metadata_stream->pos.fd, "r");
ret = -errno;
goto end_stream;
}
+ /* fd now belongs to fp */
+ metadata_stream->pos.fd = -1;
}
if (babeltrace_debug)
yydebug = 1;
if (packet_metadata(td, fp)) {
- ret = ctf_open_trace_metadata_stream_read(td, &fp, &buf);
- if (ret)
- goto end_packet_read;
+ ret = ctf_trace_metadata_stream_read(td, &fp, &buf);
+ if (ret) {
+ goto end;
+ }
+ td->metadata_string = buf;
+ td->metadata_packetized = 1;
} else {
- unsigned int major, minor;
- ssize_t nr_items;
-
- td->byte_order = BYTE_ORDER;
-
- /* Check text-only metadata header and version */
- nr_items = fscanf(fp, "/* CTF %u.%u", &major, &minor);
- if (nr_items < 2)
- fprintf(stderr, "[warning] Ill-shapen or missing \"/* CTF x.y\" header for text-only metadata.\n");
- if (check_version(major, minor) < 0) {
- ret = -EINVAL;
- goto end_packet_read;
+ if (!append) {
+ unsigned int major, minor;
+ ssize_t nr_items;
+
+ td->byte_order = BYTE_ORDER;
+
+ /* Check text-only metadata header and version */
+ nr_items = fscanf(fp, "/* CTF %10u.%10u", &major, &minor);
+ if (nr_items < 2)
+ fprintf(stderr, "[warning] Ill-shapen or missing \"/* CTF x.y\" header for text-only metadata.\n");
+ if (check_version(major, minor) < 0) {
+ ret = -EINVAL;
+ goto end;
+ }
+ rewind(fp);
}
- rewind(fp);
}
- scanner = ctf_scanner_alloc(fp);
- if (!scanner) {
- fprintf(stderr, "[error] Error allocating scanner\n");
- ret = -ENOMEM;
- goto end_scanner_alloc;
- }
- ret = ctf_scanner_append_ast(scanner);
+ ret = ctf_scanner_append_ast(scanner, fp);
if (ret) {
fprintf(stderr, "[error] Error creating AST\n");
goto end;
goto end;
}
end:
- ctf_scanner_free(scanner);
-end_scanner_alloc:
-end_packet_read:
- if (fp)
- fclose(fp);
- free(buf);
+ if (fp) {
+ closeret = fclose(fp);
+ if (closeret) {
+ perror("Error on fclose");
+ }
+ }
end_stream:
- close(metadata_stream->pos.fd);
+ if (metadata_stream->pos.fd >= 0) {
+ closeret = close(metadata_stream->pos.fd);
+ if (closeret) {
+ perror("Error on metadata stream fd close");
+ }
+ }
+end_free:
if (ret)
g_free(metadata_stream);
return ret;
struct ctf_event_definition *stream_event = g_new0(struct ctf_event_definition, 1);
if (event->context_decl) {
- struct definition *definition =
+ struct bt_definition *definition =
event->context_decl->p.definition_new(&event->context_decl->p,
stream->parent_def_scope, 0, 0, "event.context");
if (!definition) {
stream->parent_def_scope = stream_event->event_context->p.scope;
}
if (event->fields_decl) {
- struct definition *definition =
+ struct bt_definition *definition =
event->fields_decl->p.definition_new(&event->fields_decl->p,
stream->parent_def_scope, 0, 0, "event.fields");
if (!definition) {
error:
if (stream_event->event_fields)
- definition_unref(&stream_event->event_fields->p);
+ bt_definition_unref(&stream_event->event_fields->p);
if (stream_event->event_context)
- definition_unref(&stream_event->event_context->p);
+ bt_definition_unref(&stream_event->event_context->p);
+ fprintf(stderr, "[error] Unable to create event definition for event \"%s\".\n",
+ g_quark_to_string(event->name));
return NULL;
}
+static
+int copy_event_declarations_stream_class_to_stream(struct ctf_trace *td,
+ struct ctf_stream_declaration *stream_class,
+ struct ctf_stream_definition *stream)
+{
+ size_t def_size, class_size, i;
+ int ret = 0;
+
+ def_size = stream->events_by_id->len;
+ class_size = stream_class->events_by_id->len;
+
+ g_ptr_array_set_size(stream->events_by_id, class_size);
+ for (i = def_size; i < class_size; i++) {
+ struct ctf_event_declaration *event =
+ g_ptr_array_index(stream_class->events_by_id, i);
+ struct ctf_event_definition *stream_event;
+
+ if (!event)
+ continue;
+ stream_event = create_event_definitions(td, stream, event);
+ if (!stream_event) {
+ ret = -EINVAL;
+ goto error;
+ }
+ g_ptr_array_index(stream->events_by_id, i) = stream_event;
+ }
+error:
+ return ret;
+}
+
static
int create_stream_definitions(struct ctf_trace *td, struct ctf_stream_definition *stream)
{
stream_class = stream->stream_class;
if (stream_class->packet_context_decl) {
- struct definition *definition =
+ struct bt_definition *definition =
stream_class->packet_context_decl->p.definition_new(&stream_class->packet_context_decl->p,
stream->parent_def_scope, 0, 0, "stream.packet.context");
if (!definition) {
stream->parent_def_scope = stream->stream_packet_context->p.scope;
}
if (stream_class->event_header_decl) {
- struct definition *definition =
+ struct bt_definition *definition =
stream_class->event_header_decl->p.definition_new(&stream_class->event_header_decl->p,
stream->parent_def_scope, 0, 0, "stream.event.header");
if (!definition) {
stream->parent_def_scope = stream->stream_event_header->p.scope;
}
if (stream_class->event_context_decl) {
- struct definition *definition =
+ struct bt_definition *definition =
stream_class->event_context_decl->p.definition_new(&stream_class->event_context_decl->p,
stream->parent_def_scope, 0, 0, "stream.event.context");
if (!definition) {
stream->parent_def_scope = stream->stream_event_context->p.scope;
}
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_declaration *event = g_ptr_array_index(stream_class->events_by_id, i);
- struct ctf_event_definition *stream_event;
-
- if (!event)
- continue;
- stream_event = create_event_definitions(td, stream, event);
- if (!stream_event)
- goto error_event;
- g_ptr_array_index(stream->events_by_id, i) = stream_event;
- }
+ ret = copy_event_declarations_stream_class_to_stream(td,
+ stream_class, stream);
+ if (ret)
+ goto error_event;
return 0;
error_event:
g_ptr_array_free(stream->events_by_id, TRUE);
error:
if (stream->stream_event_context)
- definition_unref(&stream->stream_event_context->p);
+ bt_definition_unref(&stream->stream_event_context->p);
if (stream->stream_event_header)
- definition_unref(&stream->stream_event_header->p);
+ bt_definition_unref(&stream->stream_event_header->p);
if (stream->stream_packet_context)
- definition_unref(&stream->stream_packet_context->p);
+ bt_definition_unref(&stream->stream_packet_context->p);
+ fprintf(stderr, "[error] Unable to create stream (%" PRIu64 ") definitions: %s\n",
+ stream_class->stream_id, strerror(-ret));
return ret;
}
-
static
-int create_stream_packet_index(struct ctf_trace *td,
- struct ctf_file_stream *file_stream)
+int stream_assign_class(struct ctf_trace *td,
+ struct ctf_file_stream *file_stream,
+ uint64_t stream_id)
{
struct ctf_stream_declaration *stream;
- int len_index;
- struct ctf_stream_pos *pos;
- struct stat filestats;
- struct packet_index packet_index;
- int first_packet = 1;
int ret;
- pos = &file_stream->pos;
-
- ret = fstat(pos->fd, &filestats);
- if (ret < 0)
- return ret;
-
- if (filestats.st_size < MAX_PACKET_HEADER_LEN / CHAR_BIT)
+ file_stream->parent.stream_id = stream_id;
+ if (stream_id >= td->streams->len) {
+ fprintf(stderr, "[error] Stream %" PRIu64 " is not declared in metadata.\n", stream_id);
return -EINVAL;
+ }
+ stream = g_ptr_array_index(td->streams, stream_id);
+ if (!stream) {
+ fprintf(stderr, "[error] Stream %" PRIu64 " is not declared in metadata.\n", stream_id);
+ return -EINVAL;
+ }
+ file_stream->parent.stream_class = stream;
+ ret = create_stream_definitions(td, &file_stream->parent);
+ if (ret)
+ return ret;
+ return 0;
+}
- for (pos->mmap_offset = 0; pos->mmap_offset < filestats.st_size; ) {
- uint64_t stream_id = 0;
-
- if (pos->base_mma) {
- /* unmap old base */
- ret = munmap_align(pos->base_mma);
- if (ret) {
- fprintf(stderr, "[error] Unable to unmap old base: %s.\n",
- strerror(errno));
- return ret;
- }
- pos->base_mma = NULL;
- }
- /* map new base. Need mapping length from header. */
- pos->base_mma = mmap_align(MAX_PACKET_HEADER_LEN / CHAR_BIT, PROT_READ,
- MAP_PRIVATE, pos->fd, pos->mmap_offset);
- assert(pos->base_mma != MAP_FAILED);
- pos->content_size = MAX_PACKET_HEADER_LEN; /* Unknown at this point */
- pos->packet_size = MAX_PACKET_HEADER_LEN; /* Unknown at this point */
- pos->offset = 0; /* Position of the packet header */
-
- packet_index.offset = pos->mmap_offset;
- packet_index.content_size = 0;
- packet_index.packet_size = 0;
- packet_index.timestamp_begin = 0;
- packet_index.timestamp_end = 0;
- packet_index.events_discarded = 0;
-
- /* read and check header, set stream id (and check) */
- if (file_stream->parent.trace_packet_header) {
- /* Read packet header */
- ret = generic_rw(&pos->parent, &file_stream->parent.trace_packet_header->p);
- if (ret)
- return ret;
- len_index = struct_declaration_lookup_field_index(file_stream->parent.trace_packet_header->declaration, g_quark_from_static_string("magic"));
- if (len_index >= 0) {
- struct definition *field;
- uint64_t magic;
-
- field = struct_definition_get_field_from_index(file_stream->parent.trace_packet_header, len_index);
- magic = get_unsigned_int(field);
- if (magic != CTF_MAGIC) {
- fprintf(stderr, "[error] Invalid magic number 0x%" PRIX64 " at packet %u (file offset %zd).\n",
- magic,
- file_stream->pos.packet_cycles_index->len,
- (ssize_t) pos->mmap_offset);
- return -EINVAL;
- }
- }
-
- /* check uuid */
- len_index = struct_declaration_lookup_field_index(file_stream->parent.trace_packet_header->declaration, g_quark_from_static_string("uuid"));
- if (len_index >= 0) {
- struct definition_array *defarray;
- struct definition *field;
- uint64_t i;
- 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) == BABELTRACE_UUID_LEN);
-
- for (i = 0; i < BABELTRACE_UUID_LEN; i++) {
- struct definition *elem;
+static
+int create_stream_one_packet_index(struct ctf_stream_pos *pos,
+ struct ctf_trace *td,
+ struct ctf_file_stream *file_stream,
+ size_t filesize)
+{
+ struct packet_index packet_index;
+ uint64_t stream_id = 0;
+ uint64_t packet_map_len = DEFAULT_HEADER_LEN, tmp_map_len;
+ int first_packet = 0;
+ int len_index;
+ int ret;
- elem = array_index(defarray, i);
- uuidval[i] = get_unsigned_int(elem);
- }
- ret = babeltrace_uuid_compare(td->uuid, uuidval);
- if (ret) {
- fprintf(stderr, "[error] Unique Universal Identifiers do not match.\n");
- return -EINVAL;
- }
- }
+begin:
+ if (!pos->mmap_offset) {
+ first_packet = 1;
+ }
+ if (filesize - pos->mmap_offset < (packet_map_len >> LOG2_CHAR_BIT)) {
+ packet_map_len = (filesize - pos->mmap_offset) << LOG2_CHAR_BIT;
+ }
- len_index = struct_declaration_lookup_field_index(file_stream->parent.trace_packet_header->declaration, g_quark_from_static_string("stream_id"));
- if (len_index >= 0) {
- struct definition *field;
-
- field = struct_definition_get_field_from_index(file_stream->parent.trace_packet_header, len_index);
- stream_id = get_unsigned_int(field);
- }
+ if (pos->base_mma) {
+ /* unmap old base */
+ ret = munmap_align(pos->base_mma);
+ if (ret) {
+ fprintf(stderr, "[error] Unable to unmap old base: %s.\n",
+ strerror(errno));
+ return ret;
}
-
- if (!first_packet && file_stream->parent.stream_id != stream_id) {
- fprintf(stderr, "[error] Stream ID is changing within a stream.\n");
- return -EINVAL;
+ pos->base_mma = NULL;
+ }
+ /* map new base. Need mapping length from header. */
+ pos->base_mma = mmap_align(packet_map_len >> LOG2_CHAR_BIT, PROT_READ,
+ MAP_PRIVATE, pos->fd, pos->mmap_offset);
+ assert(pos->base_mma != MAP_FAILED);
+ /*
+ * Use current mapping size as temporary content and packet
+ * size.
+ */
+ pos->content_size = packet_map_len;
+ pos->packet_size = packet_map_len;
+ pos->offset = 0; /* Position of the packet header */
+
+ packet_index.offset = pos->mmap_offset;
+ packet_index.content_size = 0;
+ packet_index.packet_size = 0;
+ packet_index.ts_real.timestamp_begin = 0;
+ packet_index.ts_real.timestamp_end = 0;
+ packet_index.ts_cycles.timestamp_begin = 0;
+ packet_index.ts_cycles.timestamp_end = 0;
+ packet_index.events_discarded = 0;
+ packet_index.events_discarded_len = 0;
+
+ /* read and check header, set stream id (and check) */
+ if (file_stream->parent.trace_packet_header) {
+ /* Read packet header */
+ ret = generic_rw(&pos->parent, &file_stream->parent.trace_packet_header->p);
+ if (ret) {
+ if (ret == -EFAULT)
+ goto retry;
+ fprintf(stderr, "[error] Unable to read packet header: %s\n", strerror(-ret));
+ return ret;
}
- if (first_packet) {
- file_stream->parent.stream_id = stream_id;
- if (stream_id >= td->streams->len) {
- fprintf(stderr, "[error] Stream %" PRIu64 " is not declared in metadata.\n", stream_id);
+ len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.trace_packet_header->declaration, g_quark_from_static_string("magic"));
+ if (len_index >= 0) {
+ struct bt_definition *field;
+ uint64_t magic;
+
+ field = bt_struct_definition_get_field_from_index(file_stream->parent.trace_packet_header, len_index);
+ magic = bt_get_unsigned_int(field);
+ if (magic != CTF_MAGIC) {
+ fprintf(stderr, "[error] Invalid magic number 0x%" PRIX64 " at packet %u (file offset %zd).\n",
+ magic,
+ file_stream->pos.packet_index->len,
+ (ssize_t) pos->mmap_offset);
return -EINVAL;
}
- stream = g_ptr_array_index(td->streams, stream_id);
- if (!stream) {
- fprintf(stderr, "[error] Stream %" PRIu64 " is not declared in metadata.\n", stream_id);
- return -EINVAL;
- }
- file_stream->parent.stream_class = stream;
- ret = create_stream_definitions(td, &file_stream->parent);
- if (ret)
- return ret;
}
- first_packet = 0;
- if (file_stream->parent.stream_packet_context) {
- /* Read packet context */
- ret = generic_rw(&pos->parent, &file_stream->parent.stream_packet_context->p);
- if (ret)
- return ret;
- /* read content size from header */
- len_index = struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("content_size"));
- if (len_index >= 0) {
- struct definition *field;
+ /* check uuid */
+ len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.trace_packet_header->declaration, g_quark_from_static_string("uuid"));
+ if (len_index >= 0) {
+ struct definition_array *defarray;
+ struct bt_definition *field;
+ uint64_t i;
+ uint8_t uuidval[BABELTRACE_UUID_LEN];
- field = struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index);
- packet_index.content_size = get_unsigned_int(field);
- } else {
- /* Use file size for packet size */
- packet_index.content_size = filestats.st_size * CHAR_BIT;
- }
+ field = bt_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(bt_array_len(defarray) == BABELTRACE_UUID_LEN);
- /* read packet size from header */
- len_index = struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("packet_size"));
- if (len_index >= 0) {
- struct definition *field;
+ for (i = 0; i < BABELTRACE_UUID_LEN; i++) {
+ struct bt_definition *elem;
- field = struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index);
- packet_index.packet_size = get_unsigned_int(field);
- } else {
- /* Use content size if non-zero, else file size */
- packet_index.packet_size = packet_index.content_size ? : filestats.st_size * CHAR_BIT;
+ elem = bt_array_index(defarray, i);
+ uuidval[i] = bt_get_unsigned_int(elem);
}
-
- /* read timestamp begin from header */
- len_index = struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("timestamp_begin"));
- if (len_index >= 0) {
- struct definition *field;
-
- field = struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index);
- packet_index.timestamp_begin = get_unsigned_int(field);
- if (file_stream->parent.stream_class->trace->collection) {
- packet_index.timestamp_begin =
- ctf_get_real_timestamp(
- &file_stream->parent,
- packet_index.timestamp_begin);
- }
+ ret = bt_uuid_compare(td->uuid, uuidval);
+ if (ret) {
+ fprintf(stderr, "[error] Unique Universal Identifiers do not match.\n");
+ return -EINVAL;
}
+ }
- /* read timestamp end from header */
- len_index = struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("timestamp_end"));
- if (len_index >= 0) {
- struct definition *field;
-
- field = struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index);
- packet_index.timestamp_end = get_unsigned_int(field);
- if (file_stream->parent.stream_class->trace->collection) {
- packet_index.timestamp_end =
- ctf_get_real_timestamp(
- &file_stream->parent,
- packet_index.timestamp_end);
- }
- }
+ len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.trace_packet_header->declaration, g_quark_from_static_string("stream_id"));
+ if (len_index >= 0) {
+ struct bt_definition *field;
- /* read events discarded from header */
- len_index = struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("events_discarded"));
- if (len_index >= 0) {
- struct definition *field;
+ field = bt_struct_definition_get_field_from_index(file_stream->parent.trace_packet_header, len_index);
+ stream_id = bt_get_unsigned_int(field);
+ }
+ }
- 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);
- }
+ if (!first_packet && file_stream->parent.stream_id != stream_id) {
+ fprintf(stderr, "[error] Stream ID is changing within a stream: expecting %" PRIu64 ", but packet has %" PRIu64 "\n",
+ stream_id,
+ file_stream->parent.stream_id);
+ return -EINVAL;
+ }
+ if (first_packet) {
+ ret = stream_assign_class(td, file_stream, stream_id);
+ if (ret)
+ return ret;
+ }
+
+ if (file_stream->parent.stream_packet_context) {
+ /* Read packet context */
+ ret = generic_rw(&pos->parent, &file_stream->parent.stream_packet_context->p);
+ if (ret) {
+ if (ret == -EFAULT)
+ goto retry;
+ fprintf(stderr, "[error] Unable to read packet context: %s\n", strerror(-ret));
+ return ret;
+ }
+ /* read packet size from header */
+ len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("packet_size"));
+ if (len_index >= 0) {
+ struct bt_definition *field;
+
+ field = bt_struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index);
+ packet_index.packet_size = bt_get_unsigned_int(field);
} else {
/* Use file size for packet size */
- packet_index.content_size = filestats.st_size * CHAR_BIT;
- /* Use content size if non-zero, else file size */
- packet_index.packet_size = packet_index.content_size ? : filestats.st_size * CHAR_BIT;
+ packet_index.packet_size = filesize * CHAR_BIT;
}
- /* Validate content size and packet size values */
- if (packet_index.content_size > packet_index.packet_size) {
- fprintf(stderr, "[error] Content size (%" PRIu64 " bits) is larger than packet size (%" PRIu64 " bits).\n",
- packet_index.content_size, packet_index.packet_size);
- return -EINVAL;
+ /* read content size from header */
+ len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("content_size"));
+ if (len_index >= 0) {
+ struct bt_definition *field;
+
+ field = bt_struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index);
+ packet_index.content_size = bt_get_unsigned_int(field);
+ } else {
+ /* Use packet size if non-zero, else file size */
+ packet_index.content_size = packet_index.packet_size ? : filesize * CHAR_BIT;
}
- if (packet_index.packet_size > ((uint64_t)filestats.st_size - packet_index.offset) * CHAR_BIT) {
- fprintf(stderr, "[error] Packet size (%" PRIu64 " bits) is larger than remaining file size (%" PRIu64 " bits).\n",
- packet_index.packet_size, ((uint64_t)filestats.st_size - packet_index.offset) * CHAR_BIT);
- return -EINVAL;
+ /* read timestamp begin from header */
+ len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("timestamp_begin"));
+ if (len_index >= 0) {
+ struct bt_definition *field;
+
+ field = bt_struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index);
+ packet_index.ts_cycles.timestamp_begin = bt_get_unsigned_int(field);
+ if (file_stream->parent.stream_class->trace->parent.collection) {
+ packet_index.ts_real.timestamp_begin =
+ ctf_get_real_timestamp(
+ &file_stream->parent,
+ packet_index.ts_cycles.timestamp_begin);
+ }
}
- /* Save position after header and context */
- packet_index.data_offset = pos->offset;
+ /* read timestamp end from header */
+ len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("timestamp_end"));
+ if (len_index >= 0) {
+ struct bt_definition *field;
+
+ field = bt_struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index);
+ packet_index.ts_cycles.timestamp_end = bt_get_unsigned_int(field);
+ if (file_stream->parent.stream_class->trace->parent.collection) {
+ packet_index.ts_real.timestamp_end =
+ ctf_get_real_timestamp(
+ &file_stream->parent,
+ packet_index.ts_cycles.timestamp_end);
+ }
+ }
- /* add index to packet array */
- g_array_append_val(file_stream->pos.packet_cycles_index, packet_index);
+ /* read events discarded from header */
+ len_index = bt_struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("events_discarded"));
+ if (len_index >= 0) {
+ struct bt_definition *field;
- pos->mmap_offset += packet_index.packet_size / CHAR_BIT;
+ field = bt_struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index);
+ packet_index.events_discarded = bt_get_unsigned_int(field);
+ packet_index.events_discarded_len = bt_get_int_len(field);
+ }
+ } else {
+ /* Use file size for packet size */
+ packet_index.packet_size = filesize * CHAR_BIT;
+ /* Use packet size if non-zero, else file size */
+ packet_index.content_size = packet_index.packet_size ? : filesize * CHAR_BIT;
+ }
+
+ /* Validate content size and packet size values */
+ if (packet_index.content_size > packet_index.packet_size) {
+ fprintf(stderr, "[error] Content size (%" PRIu64 " bits) is larger than packet size (%" PRIu64 " bits).\n",
+ packet_index.content_size, packet_index.packet_size);
+ return -EINVAL;
+ }
+
+ if (packet_index.packet_size > ((uint64_t) filesize - packet_index.offset) * CHAR_BIT) {
+ fprintf(stderr, "[error] Packet size (%" PRIu64 " bits) is larger than remaining file size (%" PRIu64 " bits).\n",
+ packet_index.packet_size, ((uint64_t) filesize - packet_index.offset) * CHAR_BIT);
+ return -EINVAL;
+ }
+
+ if (packet_index.content_size < pos->offset) {
+ fprintf(stderr, "[error] Invalid CTF stream: content size is smaller than packet headers.\n");
+ return -EINVAL;
}
+ if ((packet_index.packet_size >> LOG2_CHAR_BIT) == 0) {
+ fprintf(stderr, "[error] Invalid CTF stream: packet size needs to be at least one byte\n");
+ return -EINVAL;
+ }
+
+ /* Save position after header and context */
+ packet_index.data_offset = pos->offset;
+
+ /* add index to packet array */
+ g_array_append_val(file_stream->pos.packet_index, packet_index);
+
+ pos->mmap_offset += packet_index.packet_size >> LOG2_CHAR_BIT;
+
+ return 0;
+
+ /* Retry with larger mapping */
+retry:
+ if (packet_map_len == ((filesize - pos->mmap_offset) << LOG2_CHAR_BIT)) {
+ /*
+ * Reached EOF, but still expecting header/context data.
+ */
+ fprintf(stderr, "[error] Reached end of file, but still expecting header or context fields.\n");
+ return -EFAULT;
+ }
+ /* Double the mapping len, and retry */
+ tmp_map_len = packet_map_len << 1;
+ if (tmp_map_len >> 1 != packet_map_len) {
+ /* Overflow */
+ fprintf(stderr, "[error] Packet mapping length overflow\n");
+ return -EFAULT;
+ }
+ packet_map_len = tmp_map_len;
+ goto begin;
+}
+
+static
+int create_stream_packet_index(struct ctf_trace *td,
+ struct ctf_file_stream *file_stream)
+{
+ struct ctf_stream_pos *pos;
+ struct stat filestats;
+ int ret;
+
+ pos = &file_stream->pos;
+
+ ret = fstat(pos->fd, &filestats);
+ if (ret < 0)
+ return ret;
+
+ /* Deal with empty files */
+ if (!filestats.st_size) {
+ if (file_stream->parent.trace_packet_header
+ || file_stream->parent.stream_packet_context) {
+ /*
+ * We expect a trace packet header and/or stream packet
+ * context. Since a trace needs to have at least one
+ * packet, empty files are therefore not accepted.
+ */
+ fprintf(stderr, "[error] Encountered an empty file, but expecting a trace packet header.\n");
+ return -EINVAL;
+ } else {
+ /*
+ * Without trace packet header nor stream packet
+ * context, a one-packet trace can indeed be empty. This
+ * is only valid if there is only one stream class: 0.
+ */
+ ret = stream_assign_class(td, file_stream, 0);
+ if (ret)
+ return ret;
+ return 0;
+ }
+ }
+
+ for (pos->mmap_offset = 0; pos->mmap_offset < filestats.st_size; ) {
+ ret = create_stream_one_packet_index(pos, td, file_stream,
+ filestats.st_size);
+ if (ret)
+ return ret;
+ }
return 0;
}
int ret;
if (td->packet_header_decl) {
- struct definition *definition =
+ struct bt_definition *definition =
td->packet_header_decl->p.definition_new(&td->packet_header_decl->p,
stream->parent_def_scope, 0, 0, "trace.packet.header");
if (!definition) {
return 0;
error:
+ fprintf(stderr, "[error] Unable to create trace definitions: %s\n", strerror(-ret));
+ return ret;
+}
+
+static
+int import_stream_packet_index(struct ctf_trace *td,
+ struct ctf_file_stream *file_stream)
+{
+ struct ctf_stream_pos *pos;
+ struct ctf_packet_index *ctf_index = NULL;
+ struct ctf_packet_index_file_hdr index_hdr;
+ struct packet_index index;
+ uint32_t packet_index_len;
+ int ret = 0;
+ int first_packet = 1;
+ size_t len;
+
+ pos = &file_stream->pos;
+
+ len = fread(&index_hdr, sizeof(index_hdr), 1, pos->index_fp);
+ if (len != 1) {
+ perror("read index file header");
+ goto error;
+ }
+
+ /* Check the index header */
+ if (be32toh(index_hdr.magic) != CTF_INDEX_MAGIC) {
+ fprintf(stderr, "[error] wrong index magic\n");
+ ret = -1;
+ goto error;
+ }
+ if (be32toh(index_hdr.index_major) != CTF_INDEX_MAJOR) {
+ fprintf(stderr, "[error] Incompatible index file %" PRIu32
+ ".%" PRIu32 ", supported %d.%d\n",
+ be32toh(index_hdr.index_major),
+ be32toh(index_hdr.index_minor), CTF_INDEX_MAJOR,
+ CTF_INDEX_MINOR);
+ ret = -1;
+ goto error;
+ }
+ packet_index_len = be32toh(index_hdr.packet_index_len);
+ if (packet_index_len == 0) {
+ fprintf(stderr, "[error] Packet index length cannot be 0.\n");
+ ret = -1;
+ goto error;
+ }
+ /*
+ * Allocate the index length found in header, not internal
+ * representation.
+ */
+ ctf_index = g_malloc0(packet_index_len);
+ while (fread(ctf_index, packet_index_len, 1,
+ pos->index_fp) == 1) {
+ uint64_t stream_id;
+ struct ctf_stream_declaration *stream = NULL;
+
+ memset(&index, 0, sizeof(index));
+ index.offset = be64toh(ctf_index->offset);
+ index.packet_size = be64toh(ctf_index->packet_size);
+ index.content_size = be64toh(ctf_index->content_size);
+ index.ts_cycles.timestamp_begin = be64toh(ctf_index->timestamp_begin);
+ index.ts_cycles.timestamp_end = be64toh(ctf_index->timestamp_end);
+ index.events_discarded = be64toh(ctf_index->events_discarded);
+ index.events_discarded_len = 64;
+ index.data_offset = -1;
+ stream_id = be64toh(ctf_index->stream_id);
+
+ if (!first_packet) {
+ /* add index to packet array */
+ g_array_append_val(file_stream->pos.packet_index, index);
+ continue;
+ }
+
+ file_stream->parent.stream_id = stream_id;
+ if (stream_id < td->streams->len) {
+ stream = g_ptr_array_index(td->streams, stream_id);
+ }
+ if (!stream) {
+ fprintf(stderr, "[error] Stream %" PRIu64
+ " is not declared in metadata.\n",
+ stream_id);
+ ret = -EINVAL;
+ goto error;
+ }
+ file_stream->parent.stream_class = stream;
+ ret = create_stream_definitions(td, &file_stream->parent);
+ if (ret)
+ goto error;
+ first_packet = 0;
+ /* add index to packet array */
+ g_array_append_val(file_stream->pos.packet_index, index);
+ }
+
+ /* Index containing only the header. */
+ if (!file_stream->parent.stream_class) {
+ ret = -1;
+ goto error;
+ }
+
+ ret = 0;
+
+error:
+ g_free(ctf_index);
return 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 index,
+ void (*packet_seek)(struct bt_stream_pos *pos, size_t index,
int whence))
{
- int ret, fd;
+ int ret, fd, closeret;
struct ctf_file_stream *file_stream;
struct stat statbuf;
+ char *index_name;
fd = openat(td->dirfd, path, flags);
if (fd < 0) {
goto fstat_error;
}
if (S_ISDIR(statbuf.st_mode)) {
- fprintf(stderr, "[warning] Skipping directory '%s' found in trace\n", path);
+ if (strncmp(path, "index", 5) != 0) {
+ fprintf(stderr, "[warning] Skipping directory '%s' "
+ "found in trace\n", path);
+ }
ret = 0;
goto fd_is_dir_ok;
}
+ if (!statbuf.st_size) {
+ /** Skip empty files. */
+ ret = 0;
+ goto fd_is_empty_file;
+ }
file_stream = g_new0(struct ctf_file_stream, 1);
file_stream->pos.last_offset = LAST_OFFSET_POISON;
+ file_stream->pos.fd = -1;
+ file_stream->pos.index_fp = NULL;
+
+ strncpy(file_stream->parent.path, path, PATH_MAX);
+ file_stream->parent.path[PATH_MAX - 1] = '\0';
if (packet_seek) {
file_stream->pos.packet_seek = packet_seek;
goto error_def;
}
- ctf_init_pos(&file_stream->pos, fd, flags);
+ ret = ctf_init_pos(&file_stream->pos, &td->parent, fd, flags);
+ if (ret)
+ goto error_def;
ret = create_trace_definitions(td, &file_stream->parent);
if (ret)
goto error_def;
/*
- * For now, only a single slock is supported.
+ * For now, only a single clock per trace is supported.
*/
- file_stream->parent.current_clock = td->single_clock;
- ret = create_stream_packet_index(td, file_stream);
- if (ret)
- goto error_index;
+ file_stream->parent.current_clock = td->parent.single_clock;
+
+ /*
+ * Allocate the index name for this stream and try to open it.
+ */
+ index_name = malloc((strlen(path) + sizeof(INDEX_PATH)) * sizeof(char));
+ if (!index_name) {
+ fprintf(stderr, "[error] Cannot allocate index filename\n");
+ ret = -ENOMEM;
+ goto error_def;
+ }
+ snprintf(index_name, strlen(path) + sizeof(INDEX_PATH),
+ INDEX_PATH, path);
+
+ if (bt_faccessat(td->dirfd, td->parent.path, index_name, O_RDONLY, 0) < 0) {
+ ret = create_stream_packet_index(td, file_stream);
+ if (ret) {
+ fprintf(stderr, "[error] Stream index creation error.\n");
+ goto error_index;
+ }
+ } else {
+ ret = openat(td->dirfd, index_name, flags);
+ if (ret < 0) {
+ perror("Index file openat()");
+ ret = -1;
+ goto error_free;
+ }
+ file_stream->pos.index_fp = fdopen(ret, "r");
+ if (!file_stream->pos.index_fp) {
+ perror("fdopen() error");
+ goto error_free;
+ }
+ ret = import_stream_packet_index(td, file_stream);
+ if (ret) {
+ ret = -1;
+ goto error_index;
+ }
+ ret = fclose(file_stream->pos.index_fp);
+ if (ret < 0) {
+ perror("close index");
+ goto error_free;
+ }
+ }
+ free(index_name);
+
/* Add stream file to stream class */
g_ptr_array_add(file_stream->parent.stream_class->streams,
&file_stream->parent);
return 0;
error_index:
+ if (file_stream->pos.index_fp) {
+ ret = fclose(file_stream->pos.index_fp);
+ if (ret < 0) {
+ perror("close index");
+ }
+ }
if (file_stream->parent.trace_packet_header)
- definition_unref(&file_stream->parent.trace_packet_header->p);
+ bt_definition_unref(&file_stream->parent.trace_packet_header->p);
+error_free:
+ free(index_name);
error_def:
- ctf_fini_pos(&file_stream->pos);
+ closeret = ctf_fini_pos(&file_stream->pos);
+ if (closeret) {
+ fprintf(stderr, "Error on ctf_fini_pos\n");
+ }
g_free(file_stream);
+fd_is_empty_file:
fd_is_dir_ok:
fstat_error:
- close(fd);
+ closeret = close(fd);
+ if (closeret) {
+ perror("Error on fd close");
+ }
error:
return 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 index,
+ void (*packet_seek)(struct bt_stream_pos *pos, size_t index,
int whence), FILE *metadata_fp)
{
- int ret;
+ struct ctf_scanner *scanner;
+ int ret, closeret;
struct dirent *dirent;
struct dirent *diriter;
size_t dirent_len;
+ char *ext;
td->flags = flags;
ret = -errno;
goto error_dirfd;
}
- strncpy(td->path, path, sizeof(td->path));
- td->path[sizeof(td->path) - 1] = '\0';
+ strncpy(td->parent.path, path, sizeof(td->parent.path));
+ td->parent.path[sizeof(td->parent.path) - 1] = '\0';
/*
* Keep the metadata file separate.
+ * Keep scanner object local to the open. We don't support
+ * incremental metadata append for on-disk traces.
*/
-
- ret = ctf_open_trace_metadata_read(td, packet_seek, metadata_fp);
+ scanner = ctf_scanner_alloc();
+ if (!scanner) {
+ fprintf(stderr, "[error] Error allocating scanner\n");
+ ret = -ENOMEM;
+ goto error_metadata;
+ }
+ ret = ctf_trace_metadata_read(td, metadata_fp, scanner, 0);
+ ctf_scanner_free(scanner);
if (ret) {
+ if (ret == -ENOENT) {
+ fprintf(stderr, "[warning] Empty metadata.\n");
+ }
fprintf(stderr, "[warning] Unable to open trace metadata for path \"%s\".\n", path);
goto error_metadata;
}
|| !strcmp(diriter->d_name, "..")
|| !strcmp(diriter->d_name, "metadata"))
continue;
+
+ /* Ignore index files : *.idx */
+ ext = strrchr(diriter->d_name, '.');
+ if (ext && (!strcmp(ext, ".idx"))) {
+ continue;
+ }
+
ret = ctf_open_file_stream_read(td, diriter->d_name,
flags, packet_seek);
if (ret) {
readdir_error:
free(dirent);
error_metadata:
- close(td->dirfd);
+ closeret = close(td->dirfd);
+ if (closeret) {
+ perror("Error on fd close");
+ }
error_dirfd:
- closedir(td->dir);
+ closeret = closedir(td->dir);
+ if (closeret) {
+ perror("Error on closedir");
+ }
error:
return ret;
}
* since the index creation read it entirely.
*/
static
-struct trace_descriptor *ctf_open_trace(const char *path, int flags,
- void (*packet_seek)(struct stream_pos *pos, size_t index,
+struct bt_trace_descriptor *ctf_open_trace(const char *path, int flags,
+ void (*packet_seek)(struct bt_stream_pos *pos, size_t index,
int whence), FILE *metadata_fp)
{
struct ctf_trace *td;
return NULL;
}
-
+static
void ctf_init_mmap_pos(struct ctf_stream_pos *pos,
- struct mmap_stream *mmap_info)
+ struct bt_mmap_stream *mmap_info)
{
pos->mmap_offset = 0;
pos->packet_size = 0;
pos->offset = 0;
pos->dummy = false;
pos->cur_index = 0;
- pos->packet_cycles_index = NULL;
- pos->packet_real_index = NULL;
pos->prot = PROT_READ;
pos->flags = MAP_PRIVATE;
pos->parent.rw_table = read_dispatch_table;
pos->parent.event_cb = ctf_read_event;
+ pos->priv = mmap_info->priv;
+ pos->packet_index = g_array_new(FALSE, TRUE,
+ sizeof(struct packet_index));
}
static
int prepare_mmap_stream_definition(struct ctf_trace *td,
- struct ctf_file_stream *file_stream)
+ struct ctf_file_stream *file_stream,
+ void (*packet_seek)(struct bt_stream_pos *pos, size_t index,
+ int whence))
{
struct ctf_stream_declaration *stream;
- uint64_t stream_id = 0;
+ uint64_t stream_id;
int ret;
- file_stream->parent.stream_id = stream_id;
+ /* Ask for the first packet to get the stream_id. */
+ packet_seek(&file_stream->pos.parent, 0, SEEK_SET);
+ stream_id = file_stream->parent.stream_id;
if (stream_id >= td->streams->len) {
fprintf(stderr, "[error] Stream %" PRIu64 " is not declared "
"in metadata.\n", stream_id);
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 index,
+ struct bt_mmap_stream *mmap_info,
+ void (*packet_seek)(struct bt_stream_pos *pos, size_t index,
int whence))
{
int ret;
struct ctf_file_stream *file_stream;
file_stream = g_new0(struct ctf_file_stream, 1);
+ file_stream->parent.stream_id = -1ULL;
file_stream->pos.last_offset = LAST_OFFSET_POISON;
ctf_init_mmap_pos(&file_stream->pos, mmap_info);
goto error_def;
}
- ret = prepare_mmap_stream_definition(td, file_stream);
+ ret = prepare_mmap_stream_definition(td, file_stream, packet_seek);
if (ret)
goto error_index;
+ /*
+ * For now, only a single clock per trace is supported.
+ */
+ file_stream->parent.current_clock = td->parent.single_clock;
+
/* Add stream file to stream class */
g_ptr_array_add(file_stream->parent.stream_class->streams,
&file_stream->parent);
error_index:
if (file_stream->parent.trace_packet_header)
- definition_unref(&file_stream->parent.trace_packet_header->p);
+ bt_definition_unref(&file_stream->parent.trace_packet_header->p);
error_def:
g_free(file_stream);
return ret;
}
+static
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 index,
+ struct bt_mmap_stream_list *mmap_list,
+ void (*packet_seek)(struct bt_stream_pos *pos, size_t index,
int whence),
FILE *metadata_fp)
{
int ret;
- struct mmap_stream *mmap_info;
+ struct bt_mmap_stream *mmap_info;
- ret = ctf_open_trace_metadata_read(td, ctf_packet_seek, metadata_fp);
+ td->scanner = ctf_scanner_alloc();
+ if (!td->scanner) {
+ fprintf(stderr, "[error] Error allocating scanner\n");
+ ret = -ENOMEM;
+ goto error;
+ }
+ ret = ctf_trace_metadata_read(td, metadata_fp, td->scanner, 0);
if (ret) {
+ if (ret == -ENOENT) {
+ fprintf(stderr, "[warning] Empty metadata.\n");
+ }
goto error;
}
goto error;
}
}
-
return 0;
error:
+ ctf_scanner_free(td->scanner);
return ret;
}
static
-struct trace_descriptor *ctf_open_mmap_trace(
- struct mmap_stream_list *mmap_list,
- void (*packet_seek)(struct stream_pos *pos, size_t index,
+struct bt_trace_descriptor *ctf_open_mmap_trace(
+ struct bt_mmap_stream_list *mmap_list,
+ void (*packet_seek)(struct bt_stream_pos *pos, size_t index,
int whence),
FILE *metadata_fp)
{
goto error;
}
td = g_new0(struct ctf_trace, 1);
+ td->dirfd = -1;
ret = ctf_open_mmap_trace_read(td, mmap_list, packet_seek, metadata_fp);
if (ret)
goto error_free;
return NULL;
}
+int ctf_append_trace_metadata(struct bt_trace_descriptor *tdp,
+ FILE *metadata_fp)
+{
+ struct ctf_trace *td = container_of(tdp, struct ctf_trace, parent);
+ int i, j;
+ int ret;
+
+ if (!td->scanner)
+ return -EINVAL;
+ ret = ctf_trace_metadata_read(td, metadata_fp, td->scanner, 1);
+ if (ret)
+ return ret;
+ /* for each stream_class */
+ for (i = 0; i < td->streams->len; i++) {
+ struct ctf_stream_declaration *stream_class;
+
+ stream_class = g_ptr_array_index(td->streams, i);
+ if (!stream_class)
+ continue;
+ /* for each stream */
+ for (j = 0; j < stream_class->streams->len; j++) {
+ struct ctf_stream_definition *stream;
+
+ stream = g_ptr_array_index(stream_class->streams, j);
+ if (!stream)
+ continue;
+ ret = copy_event_declarations_stream_class_to_stream(td,
+ stream_class, stream);
+ if (ret)
+ return ret;
+ }
+ }
+ return 0;
+}
+
static
-int ctf_convert_index_timestamp(struct trace_descriptor *tdp)
+int ctf_convert_index_timestamp(struct bt_trace_descriptor *tdp)
{
int i, j, k;
struct ctf_trace *td = container_of(tdp, struct ctf_trace, parent);
cfs = container_of(stream, struct ctf_file_stream,
parent);
stream_pos = &cfs->pos;
- stream_pos->packet_real_index = g_array_new(FALSE, TRUE,
- sizeof(struct packet_index));
-
- if (!stream_pos->packet_cycles_index)
+ if (!stream_pos->packet_index)
continue;
- for (k = 0; k < stream_pos->packet_cycles_index->len; k++) {
+ for (k = 0; k < stream_pos->packet_index->len; k++) {
struct packet_index *index;
- struct packet_index new_index;
- index = &g_array_index(stream_pos->packet_cycles_index,
+ index = &g_array_index(stream_pos->packet_index,
struct packet_index, k);
- memcpy(&new_index, index,
- sizeof(struct packet_index));
- new_index.timestamp_begin =
+ index->ts_real.timestamp_begin =
ctf_get_real_timestamp(stream,
- index->timestamp_begin);
- new_index.timestamp_end =
+ index->ts_cycles.timestamp_begin);
+ index->ts_real.timestamp_end =
ctf_get_real_timestamp(stream,
- index->timestamp_end);
- g_array_append_val(stream_pos->packet_real_index,
- new_index);
+ index->ts_cycles.timestamp_end);
}
}
}
}
static
-void ctf_close_file_stream(struct ctf_file_stream *file_stream)
+int ctf_close_file_stream(struct ctf_file_stream *file_stream)
{
- ctf_fini_pos(&file_stream->pos);
- close(file_stream->pos.fd);
+ int ret;
+
+ ret = ctf_fini_pos(&file_stream->pos);
+ if (ret) {
+ fprintf(stderr, "Error on ctf_fini_pos\n");
+ return -1;
+ }
+ if (file_stream->pos.fd >= 0) {
+ ret = close(file_stream->pos.fd);
+ if (ret) {
+ perror("Error closing file fd");
+ return -1;
+ }
+ }
+ return 0;
}
static
-void ctf_close_trace(struct trace_descriptor *tdp)
+int ctf_close_trace(struct bt_trace_descriptor *tdp)
{
struct ctf_trace *td = container_of(tdp, struct ctf_trace, parent);
- int i;
+ int ret;
if (td->streams) {
+ int i;
+
for (i = 0; i < td->streams->len; i++) {
struct ctf_stream_declaration *stream;
int j;
continue;
for (j = 0; j < stream->streams->len; j++) {
struct ctf_file_stream *file_stream;
- file_stream = container_of(g_ptr_array_index(stream->streams, j), struct ctf_file_stream, parent);
- ctf_close_file_stream(file_stream);
+ file_stream = container_of(g_ptr_array_index(stream->streams, j),
+ struct ctf_file_stream, parent);
+ ret = ctf_close_file_stream(file_stream);
+ if (ret)
+ return ret;
}
-
}
- 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);
+ ctf_destroy_metadata(td);
+ ctf_scanner_free(td->scanner);
+ if (td->dirfd >= 0) {
+ ret = close(td->dirfd);
+ if (ret) {
+ perror("Error closing dirfd");
+ return ret;
}
- g_ptr_array_free(td->event_declarations, TRUE);
}
- closedir(td->dir);
+ if (td->dir) {
+ ret = closedir(td->dir);
+ if (ret) {
+ perror("Error closedir");
+ return ret;
+ }
+ }
+ free(td->metadata_string);
g_free(td);
+ return 0;
}
static
-void ctf_set_context(struct trace_descriptor *descriptor,
+void ctf_set_context(struct bt_trace_descriptor *descriptor,
struct bt_context *ctx)
{
struct ctf_trace *td = container_of(descriptor, struct ctf_trace,
parent);
- td->ctx = ctx;
+ td->parent.ctx = ctx;
}
static
-void ctf_set_handle(struct trace_descriptor *descriptor,
+void ctf_set_handle(struct bt_trace_descriptor *descriptor,
struct bt_trace_handle *handle)
{
struct ctf_trace *td = container_of(descriptor, struct ctf_trace,
parent);
- td->handle = handle;
+ td->parent.handle = handle;
}
+static
void __attribute__((constructor)) ctf_init(void)
{
int ret;
assert(!ret);
}
-/* TODO: finalize */
+static
+void __attribute__((destructor)) ctf_exit(void)
+{
+ bt_unregister_format(&ctf_format);
+}
projects / babeltrace.git / blobdiff