#include <stdbool.h>
#include <glib.h>
#include <inttypes.h>
-#include <sys/mman.h>
-#include <babeltrace/ctf-ir/stream.h>
-#include <babeltrace/graph/notification-iterator.h>
-#include <babeltrace/graph/notification-stream.h>
-#include <babeltrace/graph/notification-event.h>
-#include <babeltrace/graph/notification-packet.h>
+#include <babeltrace/compat/mman-internal.h>
+#include <babeltrace/endian-internal.h>
+#include <babeltrace/babeltrace.h>
+#include <babeltrace/common-internal.h>
#include "file.h"
#include "metadata.h"
#include "../common/notif-iter/notif-iter.h"
-#include <assert.h>
+#include <babeltrace/assert-internal.h>
#include "data-stream-file.h"
+#include <string.h>
-#define PRINT_ERR_STREAM ctf_fs->error_fp
-#define PRINT_PREFIX "ctf-fs-data-stream"
-#define PRINT_DBG_CHECK ctf_fs_debug
-#include "../print.h"
+#define BT_LOG_TAG "PLUGIN-CTF-FS-SRC-DS"
+#include "logging.h"
static inline
size_t remaining_mmap_bytes(struct ctf_fs_ds_file *ds_file)
{
- return ds_file->mmap_valid_len - ds_file->request_offset;
+ return ds_file->mmap_len - ds_file->request_offset;
}
static
int ds_file_munmap(struct ctf_fs_ds_file *ds_file)
{
int ret = 0;
- struct ctf_fs_component *ctf_fs;
if (!ds_file || !ds_file->mmap_addr) {
goto end;
}
- ctf_fs = ds_file->file->ctf_fs;
- if (munmap(ds_file->mmap_addr, ds_file->mmap_len)) {
- PERR("Cannot memory-unmap address %p (size %zu) of file \"%s\" (%p): %s\n",
+ if (bt_munmap(ds_file->mmap_addr, ds_file->mmap_len)) {
+ BT_LOGE_ERRNO("Cannot memory-unmap file",
+ ": address=%p, size=%zu, file_path=\"%s\", file=%p",
ds_file->mmap_addr, ds_file->mmap_len,
- ds_file->file->path->str, ds_file->file->fp,
- strerror(errno));
+ ds_file->file ? ds_file->file->path->str : "NULL",
+ ds_file->file ? ds_file->file->fp : NULL);
ret = -1;
goto end;
}
}
static
-enum bt_ctf_notif_iter_medium_status ds_file_mmap_next(
+enum bt_notif_iter_medium_status ds_file_mmap_next(
struct ctf_fs_ds_file *ds_file)
{
- enum bt_ctf_notif_iter_medium_status ret =
- BT_CTF_NOTIF_ITER_MEDIUM_STATUS_OK;
- struct ctf_fs_component *ctf_fs = ds_file->file->ctf_fs;
+ enum bt_notif_iter_medium_status ret =
+ BT_NOTIF_ITER_MEDIUM_STATUS_OK;
/* Unmap old region */
if (ds_file->mmap_addr) {
goto error;
}
- ds_file->mmap_offset += ds_file->mmap_valid_len;
+ /*
+ * mmap_len is guaranteed to be page-aligned except on the
+ * last mapping where it may not be possible (since the file's
+ * size itself may not be a page multiple).
+ */
+ ds_file->mmap_offset += ds_file->mmap_len;
ds_file->request_offset = 0;
}
- ds_file->mmap_valid_len = MIN(ds_file->file->size - ds_file->mmap_offset,
+ ds_file->mmap_len = MIN(ds_file->file->size - ds_file->mmap_offset,
ds_file->mmap_max_len);
- if (ds_file->mmap_valid_len == 0) {
- ret = BT_CTF_NOTIF_ITER_MEDIUM_STATUS_EOF;
+ if (ds_file->mmap_len == 0) {
+ ret = BT_NOTIF_ITER_MEDIUM_STATUS_EOF;
goto end;
}
- /* Round up to next page, assuming page size being a power of 2. */
- ds_file->mmap_len = (ds_file->mmap_valid_len + ctf_fs->page_size - 1)
- & ~(ctf_fs->page_size - 1);
/* Map new region */
- assert(ds_file->mmap_len);
- ds_file->mmap_addr = mmap((void *) 0, ds_file->mmap_len,
+ BT_ASSERT(ds_file->mmap_len);
+ ds_file->mmap_addr = bt_mmap((void *) 0, ds_file->mmap_len,
PROT_READ, MAP_PRIVATE, fileno(ds_file->file->fp),
ds_file->mmap_offset);
if (ds_file->mmap_addr == MAP_FAILED) {
- PERR("Cannot memory-map address (size %zu) of file \"%s\" (%p) at offset %zu: %s\n",
+ BT_LOGE("Cannot memory-map address (size %zu) of file \"%s\" (%p) at offset %jd: %s",
ds_file->mmap_len, ds_file->file->path->str,
- ds_file->file->fp, ds_file->mmap_offset,
+ ds_file->file->fp, (intmax_t) ds_file->mmap_offset,
strerror(errno));
goto error;
}
goto end;
error:
ds_file_munmap(ds_file);
- ret = BT_CTF_NOTIF_ITER_MEDIUM_STATUS_ERROR;
+ ret = BT_NOTIF_ITER_MEDIUM_STATUS_ERROR;
end:
return ret;
}
static
-enum bt_ctf_notif_iter_medium_status medop_request_bytes(
+enum bt_notif_iter_medium_status medop_request_bytes(
size_t request_sz, uint8_t **buffer_addr,
size_t *buffer_sz, void *data)
{
- enum bt_ctf_notif_iter_medium_status status =
- BT_CTF_NOTIF_ITER_MEDIUM_STATUS_OK;
+ enum bt_notif_iter_medium_status status =
+ BT_NOTIF_ITER_MEDIUM_STATUS_OK;
struct ctf_fs_ds_file *ds_file = data;
- struct ctf_fs_component *ctf_fs = ds_file->file->ctf_fs;
if (request_sz == 0) {
goto end;
if (remaining_mmap_bytes(ds_file) == 0) {
/* Are we at the end of the file? */
if (ds_file->mmap_offset >= ds_file->file->size) {
- PDBG("Reached end of file \"%s\" (%p)\n",
+ BT_LOGD("Reached end of file \"%s\" (%p)",
ds_file->file->path->str, ds_file->file->fp);
- status = BT_CTF_NOTIF_ITER_MEDIUM_STATUS_EOF;
+ status = BT_NOTIF_ITER_MEDIUM_STATUS_EOF;
goto end;
}
status = ds_file_mmap_next(ds_file);
switch (status) {
- case BT_CTF_NOTIF_ITER_MEDIUM_STATUS_OK:
+ case BT_NOTIF_ITER_MEDIUM_STATUS_OK:
break;
- case BT_CTF_NOTIF_ITER_MEDIUM_STATUS_EOF:
+ case BT_NOTIF_ITER_MEDIUM_STATUS_EOF:
goto end;
default:
- PERR("Cannot memory-map next region of file \"%s\" (%p)\n",
+ BT_LOGE("Cannot memory-map next region of file \"%s\" (%p)",
ds_file->file->path->str,
ds_file->file->fp);
goto error;
goto end;
error:
- status = BT_CTF_NOTIF_ITER_MEDIUM_STATUS_ERROR;
+ status = BT_NOTIF_ITER_MEDIUM_STATUS_ERROR;
end:
return status;
}
static
-struct bt_ctf_stream *medop_get_stream(
- struct bt_ctf_stream_class *stream_class, void *data)
+struct bt_stream *medop_borrow_stream(
+ struct bt_stream_class *stream_class, uint64_t stream_id,
+ void *data)
{
struct ctf_fs_ds_file *ds_file = data;
- struct bt_ctf_stream_class *ds_file_stream_class;
- struct bt_ctf_stream *stream = NULL;
-
- ds_file_stream_class = bt_ctf_stream_get_class(ds_file->stream);
- bt_put(ds_file_stream_class);
+ struct bt_stream_class *ds_file_stream_class;
+ struct bt_stream *stream = NULL;
+ ds_file_stream_class = bt_stream_borrow_class(ds_file->stream);
if (stream_class != ds_file_stream_class) {
/*
* Not supported: two packets described by two different
return stream;
}
-static struct bt_ctf_notif_iter_medium_ops medops = {
+static
+enum bt_notif_iter_medium_status medop_seek(
+ enum bt_notif_iter_seek_whence whence, off_t offset,
+ void *data)
+{
+ enum bt_notif_iter_medium_status ret =
+ BT_NOTIF_ITER_MEDIUM_STATUS_OK;
+ struct ctf_fs_ds_file *ds_file = data;
+ off_t file_size = ds_file->file->size;
+
+ if (whence != BT_NOTIF_ITER_SEEK_WHENCE_SET ||
+ offset < 0 || offset > file_size) {
+ BT_LOGE("Invalid medium seek request: whence=%d, offset=%jd, "
+ "file-size=%jd", (int) whence, offset,
+ file_size);
+ ret = BT_NOTIF_ITER_MEDIUM_STATUS_INVAL;
+ goto end;
+ }
+
+ /*
+ * Determine whether or not the destination is contained within the
+ * current mapping.
+ */
+ if (ds_file->mmap_addr && (offset < ds_file->mmap_offset ||
+ offset >= ds_file->mmap_offset + ds_file->mmap_len)) {
+ int unmap_ret;
+ off_t offset_in_mapping = offset % bt_common_get_page_size();
+
+ BT_LOGD("Medium seek request cannot be accomodated by the current "
+ "file mapping: offset=%jd, mmap-offset=%jd, "
+ "mmap-len=%zu", offset, ds_file->mmap_offset,
+ ds_file->mmap_len);
+ unmap_ret = ds_file_munmap(ds_file);
+ if (unmap_ret) {
+ ret = BT_NOTIF_ITER_MEDIUM_STATUS_ERROR;
+ goto end;
+ }
+
+ ds_file->mmap_offset = offset - offset_in_mapping;
+ ds_file->request_offset = offset_in_mapping;
+ ret = ds_file_mmap_next(ds_file);
+ if (ret != BT_NOTIF_ITER_MEDIUM_STATUS_OK) {
+ goto end;
+ }
+ } else {
+ ds_file->request_offset = offset - ds_file->mmap_offset;
+ }
+
+ ds_file->end_reached = (offset == file_size);
+end:
+ return ret;
+}
+
+BT_HIDDEN
+struct bt_notif_iter_medium_ops ctf_fs_ds_file_medops = {
.request_bytes = medop_request_bytes,
- .get_stream = medop_get_stream,
+ .borrow_stream = medop_borrow_stream,
+ .seek = medop_seek,
};
static
-int build_index_from_idx_file(struct ctf_fs_ds_file *ds_file)
+struct ctf_fs_ds_index *ctf_fs_ds_index_create(size_t length)
+{
+ struct ctf_fs_ds_index *index = g_new0(struct ctf_fs_ds_index, 1);
+
+ if (!index) {
+ BT_LOGE_STR("Failed to allocate index");
+ goto error;
+ }
+
+ index->entries = g_array_sized_new(FALSE, TRUE,
+ sizeof(struct ctf_fs_ds_index_entry), length);
+ if (!index->entries) {
+ BT_LOGE("Failed to allocate %zu index entries.", length);
+ goto error;
+ }
+ g_array_set_size(index->entries, length);
+end:
+ return index;
+error:
+ ctf_fs_ds_index_destroy(index);
+ goto end;
+}
+
+/* Returns a new, zeroed, index entry. */
+static
+struct ctf_fs_ds_index_entry *ctf_fs_ds_index_add_new_entry(
+ struct ctf_fs_ds_index *index)
+{
+ g_array_set_size(index->entries, index->entries->len + 1);
+ return &g_array_index(index->entries, struct ctf_fs_ds_index_entry,
+ index->entries->len - 1);
+}
+
+static
+struct bt_clock_class *borrow_field_mapped_clock_class(
+ struct bt_field *field)
+{
+ struct bt_field_type *field_type;
+ struct bt_clock_class *clock_class = NULL;
+
+ field_type = bt_field_borrow_type(field);
+ if (!field_type) {
+ goto end;
+ }
+
+ clock_class = bt_field_type_integer_borrow_mapped_clock_class(
+ field_type);
+ if (!clock_class) {
+ goto end;
+ }
+
+end:
+ return clock_class;
+}
+
+static
+int borrow_packet_bounds_from_packet_context(
+ struct bt_field *packet_context,
+ struct bt_clock_class **_timestamp_begin_cc,
+ struct bt_field **_timestamp_begin,
+ struct bt_clock_class **_timestamp_end_cc,
+ struct bt_field **_timestamp_end)
{
int ret = 0;
+ struct bt_clock_class *timestamp_begin_cc = NULL;
+ struct bt_clock_class *timestamp_end_cc = NULL;
+ struct bt_field *timestamp_begin = NULL;
+ struct bt_field *timestamp_end = NULL;
+
+ timestamp_begin = bt_field_structure_borrow_field_by_name(
+ packet_context, "timestamp_begin");
+ if (!timestamp_begin) {
+ BT_LOGD_STR("Cannot retrieve timestamp_begin field in packet context.");
+ ret = -1;
+ goto end;
+ }
+
+ timestamp_begin_cc = borrow_field_mapped_clock_class(timestamp_begin);
+ if (!timestamp_begin_cc) {
+ BT_LOGD_STR("Cannot retrieve the clock mapped to timestamp_begin.");
+ }
+
+ timestamp_end = bt_field_structure_borrow_field_by_name(
+ packet_context, "timestamp_end");
+ if (!timestamp_end) {
+ BT_LOGD_STR("Cannot retrieve timestamp_end field in packet context.");
+ ret = -1;
+ goto end;
+ }
+
+ timestamp_end_cc = borrow_field_mapped_clock_class(timestamp_end);
+ if (!timestamp_end_cc) {
+ BT_LOGD_STR("Cannot retrieve the clock mapped to timestamp_end.");
+ }
+
+ if (_timestamp_begin_cc) {
+ *_timestamp_begin_cc = timestamp_begin_cc;
+ }
+ if (_timestamp_begin) {
+ *_timestamp_begin = timestamp_begin;
+ }
+ if (_timestamp_end_cc) {
+ *_timestamp_end_cc = timestamp_end_cc;
+ }
+ if (_timestamp_end) {
+ *_timestamp_end = timestamp_end;
+ }
+end:
+ return ret;
+}
+
+static
+int borrow_ds_file_packet_bounds_clock_classes(struct ctf_fs_ds_file *ds_file,
+ struct bt_clock_class **timestamp_begin_cc,
+ struct bt_clock_class **timestamp_end_cc)
+{
+ struct bt_field *packet_context = NULL;
+ int ret = ctf_fs_ds_file_borrow_packet_header_context_fields(ds_file,
+ NULL, &packet_context);
+
+ if (ret || !packet_context) {
+ BT_LOGD("Cannot retrieve packet context field: ds-file-path=\"%s\"",
+ ds_file->file->path->str);
+ ret = -1;
+ goto end;
+ }
+
+ ret = borrow_packet_bounds_from_packet_context(packet_context,
+ timestamp_begin_cc, NULL,
+ timestamp_end_cc, NULL);
+
+end:
+ return ret;
+}
+
+static
+int convert_cycles_to_ns(struct bt_clock_class *clock_class,
+ uint64_t cycles, int64_t *ns)
+{
+ return bt_clock_class_cycles_to_ns(clock_class, cycles, ns);
+}
+
+static
+struct ctf_fs_ds_index *build_index_from_idx_file(
+ struct ctf_fs_ds_file *ds_file)
+{
+ int ret;
gchar *directory = NULL;
gchar *basename = NULL;
GString *index_basename = NULL;
gchar *index_file_path = NULL;
GMappedFile *mapped_file = NULL;
gsize filesize;
- const struct ctf_packet_index_file_hdr *header;
- const char *mmap_begin, *file_pos;
- struct index_entry *index;
+ const char *mmap_begin = NULL, *file_pos = NULL;
+ const struct ctf_packet_index_file_hdr *header = NULL;
+ struct ctf_fs_ds_index *index = NULL;
+ struct ctf_fs_ds_index_entry *index_entry = NULL;
uint64_t total_packets_size = 0;
size_t file_index_entry_size;
size_t file_entry_count;
size_t i;
+ struct bt_clock_class *timestamp_begin_cc = NULL;
+ struct bt_clock_class *timestamp_end_cc = NULL;
+
+ BT_LOGD("Building index from .idx file of stream file %s",
+ ds_file->file->path->str);
+
+ ret = borrow_ds_file_packet_bounds_clock_classes(ds_file,
+ ×tamp_begin_cc, ×tamp_end_cc);
+ if (ret) {
+ BT_LOGD_STR("Cannot get clock classes of \"timestamp_begin\" "
+ "and \"timestamp_end\" fields");
+ goto error;
+ }
/* Look for index file in relative path index/name.idx. */
basename = g_path_get_basename(ds_file->file->path->str);
if (!basename) {
- ret = -1;
- goto end;
+ BT_LOGE("Cannot get the basename of datastream file %s",
+ ds_file->file->path->str);
+ goto error;
}
directory = g_path_get_dirname(ds_file->file->path->str);
if (!directory) {
- ret = -1;
- goto end;
+ BT_LOGE("Cannot get dirname of datastream file %s",
+ ds_file->file->path->str);
+ goto error;
}
index_basename = g_string_new(basename);
if (!index_basename) {
- ret = -1;
- goto end;
+ BT_LOGE_STR("Cannot allocate index file basename string");
+ goto error;
}
g_string_append(index_basename, ".idx");
index_basename->str, NULL);
mapped_file = g_mapped_file_new(index_file_path, FALSE, NULL);
if (!mapped_file) {
- ret = -1;
- goto end;
+ BT_LOGD("Cannot create new mapped file %s",
+ index_file_path);
+ goto error;
}
+
+ /*
+ * The g_mapped_file API limits us to 4GB files on 32-bit.
+ * Traces with such large indexes have never been seen in the wild,
+ * but this would need to be adjusted to support them.
+ */
filesize = g_mapped_file_get_length(mapped_file);
if (filesize < sizeof(*header)) {
- printf_error("Invalid LTTng trace index: file size < header size");
- ret = -1;
- goto end;
+ BT_LOGW("Invalid LTTng trace index file: "
+ "file size (%zu bytes) < header size (%zu bytes)",
+ filesize, sizeof(*header));
+ goto error;
}
mmap_begin = g_mapped_file_get_contents(mapped_file);
file_pos = g_mapped_file_get_contents(mapped_file) + sizeof(*header);
if (be32toh(header->magic) != CTF_INDEX_MAGIC) {
- printf_error("Invalid LTTng trace index: \"magic\" validation failed");
- ret = -1;
- goto end;
+ BT_LOGW_STR("Invalid LTTng trace index: \"magic\" field validation failed");
+ goto error;
}
file_index_entry_size = be32toh(header->packet_index_len);
file_entry_count = (filesize - sizeof(*header)) / file_index_entry_size;
- if ((filesize - sizeof(*header)) % (file_entry_count * file_index_entry_size)) {
- printf_error("Invalid index file size; not a multiple of index entry size");
- ret = -1;
- goto end;
+ if ((filesize - sizeof(*header)) % file_index_entry_size) {
+ BT_LOGW("Invalid LTTng trace index: the index's size after the header "
+ "(%zu bytes) is not a multiple of the index entry size "
+ "(%zu bytes)", (filesize - sizeof(*header)),
+ sizeof(*header));
+ goto error;
}
- ds_file->index.entries = g_array_sized_new(FALSE, TRUE,
- sizeof(struct index_entry), file_entry_count);
- if (!ds_file->index.entries) {
- ret = -1;
- goto end;
+ index = ctf_fs_ds_index_create(file_entry_count);
+ if (!index) {
+ goto error;
}
- index = (struct index_entry *) ds_file->index.entries->data;
+
+ index_entry = (struct ctf_fs_ds_index_entry *) &g_array_index(
+ index->entries, struct ctf_fs_ds_index_entry, 0);
for (i = 0; i < file_entry_count; i++) {
struct ctf_packet_index *file_index =
(struct ctf_packet_index *) file_pos;
uint64_t packet_size = be64toh(file_index->packet_size);
if (packet_size % CHAR_BIT) {
- ret = -1;
- printf_error("Invalid packet size encountered in index file");
- goto invalid_index;
+ BT_LOGW("Invalid packet size encountered in LTTng trace index file");
+ goto error;
}
/* Convert size in bits to bytes. */
packet_size /= CHAR_BIT;
- index->packet_size = packet_size;
+ index_entry->packet_size = packet_size;
- index->offset = be64toh(file_index->offset);
- if (i != 0 && index->offset < (index - 1)->offset) {
- printf_error("Invalid, non-monotonic, packet offset encountered in index file");
- ret = -1;
- goto invalid_index;
+ index_entry->offset = be64toh(file_index->offset);
+ if (i != 0 && index_entry->offset < (index_entry - 1)->offset) {
+ BT_LOGW("Invalid, non-monotonic, packet offset encountered in LTTng trace index file: "
+ "previous offset=%" PRIu64 ", current offset=%" PRIu64,
+ (index_entry - 1)->offset, index_entry->offset);
+ goto error;
}
- index->timestamp_begin = be64toh(file_index->timestamp_begin);
- index->timestamp_end = be64toh(file_index->timestamp_end);
- if (index->timestamp_end < index->timestamp_begin) {
- printf_error("Invalid packet time bounds encountered in index file");
- ret = -1;
- goto invalid_index;
+ index_entry->timestamp_begin = be64toh(file_index->timestamp_begin);
+ index_entry->timestamp_end = be64toh(file_index->timestamp_end);
+ if (index_entry->timestamp_end < index_entry->timestamp_begin) {
+ BT_LOGW("Invalid packet time bounds encountered in LTTng trace index file (begin > end): "
+ "timestamp_begin=%" PRIu64 "timestamp_end=%" PRIu64,
+ index_entry->timestamp_begin,
+ index_entry->timestamp_end);
+ goto error;
+ }
+
+ /* Convert the packet's bound to nanoseconds since Epoch. */
+ ret = convert_cycles_to_ns(timestamp_begin_cc,
+ index_entry->timestamp_begin,
+ &index_entry->timestamp_begin_ns);
+ if (ret) {
+ BT_LOGD_STR("Failed to convert raw timestamp to nanoseconds since Epoch during index parsing");
+ goto error;
+ }
+ ret = convert_cycles_to_ns(timestamp_end_cc,
+ index_entry->timestamp_end,
+ &index_entry->timestamp_end_ns);
+ if (ret) {
+ BT_LOGD_STR("Failed to convert raw timestamp to nanoseconds since Epoch during LTTng trace index parsing");
+ goto error;
}
total_packets_size += packet_size;
file_pos += file_index_entry_size;
- index++;
+ index_entry++;
}
/* Validate that the index addresses the complete stream. */
if (ds_file->file->size != total_packets_size) {
- printf_error("Invalid index; indexed size != stream file size");
- ret = -1;
- goto invalid_index;
+ BT_LOGW("Invalid LTTng trace index file; indexed size != stream file size: "
+ "file-size=%" PRIu64 ", total-packets-size=%" PRIu64,
+ ds_file->file->size, total_packets_size);
+ goto error;
}
end:
g_free(directory);
if (mapped_file) {
g_mapped_file_unref(mapped_file);
}
- return ret;
-invalid_index:
- g_array_free(ds_file->index.entries, TRUE);
+ return index;
+error:
+ ctf_fs_ds_index_destroy(index);
+ index = NULL;
goto end;
}
static
-int build_index_from_data_stream_file(struct ctf_fs_ds_file *stream)
+int init_index_entry(struct ctf_fs_ds_index_entry *entry,
+ struct bt_field *packet_context, off_t packet_size,
+ off_t packet_offset)
{
- return 0;
+ int ret;
+ struct bt_field *timestamp_begin = NULL;
+ struct bt_field *timestamp_end = NULL;
+ struct bt_clock_class *timestamp_begin_cc = NULL;
+ struct bt_clock_class *timestamp_end_cc = NULL;
+
+ ret = borrow_packet_bounds_from_packet_context(packet_context,
+ ×tamp_begin_cc, ×tamp_begin,
+ ×tamp_end_cc, ×tamp_end);
+ if (ret || !timestamp_begin_cc || !timestamp_begin ||
+ !timestamp_end_cc || ! timestamp_end) {
+ BT_LOGD_STR("Failed to determine time bound fields of packet.");
+ goto end;
+ }
+
+ BT_ASSERT(packet_offset >= 0);
+ entry->offset = packet_offset;
+
+ BT_ASSERT(packet_size >= 0);
+ entry->packet_size = packet_size;
+
+ ret = bt_field_integer_unsigned_get_value(timestamp_begin,
+ &entry->timestamp_begin);
+ if (ret) {
+ goto end;
+ }
+ ret = bt_field_integer_unsigned_get_value(timestamp_end,
+ &entry->timestamp_end);
+ if (ret) {
+ goto end;
+ }
+
+ /* Convert the packet's bound to nanoseconds since Epoch. */
+ ret = convert_cycles_to_ns(timestamp_begin_cc,
+ entry->timestamp_begin,
+ &entry->timestamp_begin_ns);
+ if (ret) {
+ BT_LOGD_STR("Failed to convert raw timestamp to nanoseconds since Epoch.");
+ goto end;
+ }
+
+ ret = convert_cycles_to_ns(timestamp_end_cc,
+ entry->timestamp_end,
+ &entry->timestamp_end_ns);
+ if (ret) {
+ BT_LOGD_STR("Failed to convert raw timestamp to nanoseconds since Epoch.");
+ goto end;
+ }
+
+end:
+ return ret;
}
static
-int init_stream_index(struct ctf_fs_ds_file *ds_file)
+struct ctf_fs_ds_index *build_index_from_stream_file(
+ struct ctf_fs_ds_file *ds_file)
{
int ret;
+ struct ctf_fs_ds_index *index = NULL;
+ enum bt_notif_iter_status iter_status;
- ret = build_index_from_idx_file(ds_file);
- if (!ret) {
- goto end;
+ BT_LOGD("Indexing stream file %s", ds_file->file->path->str);
+
+ index = ctf_fs_ds_index_create(0);
+ if (!index) {
+ goto error;
+ }
+
+ do {
+ off_t current_packet_offset;
+ off_t next_packet_offset;
+ off_t current_packet_size, current_packet_size_bytes;
+ struct ctf_fs_ds_index_entry *entry;
+ struct bt_field *packet_context = NULL;
+
+ iter_status = bt_notif_iter_borrow_packet_header_context_fields(
+ ds_file->notif_iter, NULL, &packet_context);
+ if (iter_status != BT_NOTIF_ITER_STATUS_OK) {
+ if (iter_status == BT_NOTIF_ITER_STATUS_EOF) {
+ break;
+ }
+ goto error;
+ }
+
+ current_packet_offset =
+ bt_notif_iter_get_current_packet_offset(
+ ds_file->notif_iter);
+ if (current_packet_offset < 0) {
+ BT_LOGE_STR("Cannot get the current packet's offset.");
+ goto error;
+ }
+
+ current_packet_size = bt_notif_iter_get_current_packet_size(
+ ds_file->notif_iter);
+ if (current_packet_size < 0) {
+ BT_LOGE("Cannot get packet size: packet-offset=%jd",
+ current_packet_offset);
+ goto error;
+ }
+ current_packet_size_bytes =
+ ((current_packet_size + 7) & ~7) / CHAR_BIT;
+
+ if (current_packet_offset + current_packet_size_bytes >
+ ds_file->file->size) {
+ BT_LOGW("Invalid packet size reported in file: stream=\"%s\", "
+ "packet-offset=%jd, packet-size-bytes=%jd, "
+ "file-size=%jd",
+ ds_file->file->path->str,
+ current_packet_offset,
+ current_packet_size_bytes,
+ ds_file->file->size);
+ goto error;
+ }
+
+ next_packet_offset = current_packet_offset +
+ current_packet_size_bytes;
+ BT_LOGD("Seeking to next packet: current-packet-offset=%jd, "
+ "next-packet-offset=%jd", current_packet_offset,
+ next_packet_offset);
+
+ entry = ctf_fs_ds_index_add_new_entry(index);
+ if (!entry) {
+ BT_LOGE_STR("Failed to allocate a new index entry.");
+ goto error;
+ }
+
+ ret = init_index_entry(entry, packet_context,
+ current_packet_size_bytes,
+ current_packet_offset);
+ if (ret) {
+ goto error;
+ }
+
+ iter_status = bt_notif_iter_seek(ds_file->notif_iter,
+ next_packet_offset);
+ } while (iter_status == BT_NOTIF_ITER_STATUS_OK);
+
+ if (iter_status != BT_NOTIF_ITER_STATUS_EOF) {
+ goto error;
}
- ret = build_index_from_data_stream_file(ds_file);
end:
- return ret;
+ return index;
+
+error:
+ ctf_fs_ds_index_destroy(index);
+ index = NULL;
+ goto end;
}
BT_HIDDEN
struct ctf_fs_ds_file *ctf_fs_ds_file_create(
struct ctf_fs_trace *ctf_fs_trace,
- struct bt_ctf_stream *stream, const char *path,
- bool build_index)
+ struct bt_notif_iter *notif_iter,
+ struct bt_stream *stream, const char *path)
{
int ret;
+ const size_t page_size = bt_common_get_page_size();
struct ctf_fs_ds_file *ds_file = g_new0(struct ctf_fs_ds_file, 1);
if (!ds_file) {
goto error;
}
- ds_file->file = ctf_fs_file_create(ctf_fs_trace->ctf_fs);
+ ds_file->file = ctf_fs_file_create();
if (!ds_file->file) {
goto error;
}
ds_file->stream = bt_get(stream);
ds_file->cc_prio_map = bt_get(ctf_fs_trace->cc_prio_map);
g_string_assign(ds_file->file->path, path);
- ret = ctf_fs_file_open(ctf_fs_trace->ctf_fs, ds_file->file, "rb");
+ ret = ctf_fs_file_open(ds_file->file, "rb");
if (ret) {
goto error;
}
- ds_file->notif_iter = bt_ctf_notif_iter_create(
- ctf_fs_trace->metadata->trace,
- ctf_fs_trace->ctf_fs->page_size, medops, ds_file,
- ctf_fs_trace->ctf_fs->error_fp);
+ ds_file->notif_iter = notif_iter;
+ bt_notif_iter_set_medops_data(ds_file->notif_iter, ds_file);
if (!ds_file->notif_iter) {
goto error;
}
- ds_file->mmap_max_len = ctf_fs_trace->ctf_fs->page_size * 2048;
-
- if (build_index) {
- ret = init_stream_index(ds_file);
- if (ret) {
- goto error;
- }
- }
+ ds_file->mmap_max_len = page_size * 2048;
goto end;
return ds_file;
}
+BT_HIDDEN
+struct ctf_fs_ds_index *ctf_fs_ds_file_build_index(
+ struct ctf_fs_ds_file *ds_file)
+{
+ struct ctf_fs_ds_index *index;
+
+ index = build_index_from_idx_file(ds_file);
+ if (index) {
+ goto end;
+ }
+
+ BT_LOGD("Failed to build index from .index file; "
+ "falling back to stream indexing.");
+ index = build_index_from_stream_file(ds_file);
+end:
+ return index;
+}
+
BT_HIDDEN
void ctf_fs_ds_file_destroy(struct ctf_fs_ds_file *ds_file)
{
ctf_fs_file_destroy(ds_file->file);
}
- if (ds_file->notif_iter) {
- bt_ctf_notif_iter_destroy(ds_file->notif_iter);
- }
-
- if (ds_file->index.entries) {
- g_array_free(ds_file->index.entries, TRUE);
- }
-
g_free(ds_file);
}
BT_HIDDEN
-struct bt_notification_iterator_next_return ctf_fs_ds_file_next(
+struct bt_notification_iterator_next_method_return ctf_fs_ds_file_next(
struct ctf_fs_ds_file *ds_file)
{
- enum bt_ctf_notif_iter_status notif_iter_status;
- struct bt_notification_iterator_next_return ret = {
+ enum bt_notif_iter_status notif_iter_status;
+ struct bt_notification_iterator_next_method_return ret = {
.status = BT_NOTIFICATION_ITERATOR_STATUS_ERROR,
.notification = NULL,
};
- notif_iter_status = bt_ctf_notif_iter_get_next_notification(
+ notif_iter_status = bt_notif_iter_get_next_notification(
ds_file->notif_iter, ds_file->cc_prio_map, &ret.notification);
switch (notif_iter_status) {
- case BT_CTF_NOTIF_ITER_STATUS_EOF:
+ case BT_NOTIF_ITER_STATUS_EOF:
ret.status = BT_NOTIFICATION_ITERATOR_STATUS_END;
break;
- case BT_CTF_NOTIF_ITER_STATUS_OK:
+ case BT_NOTIF_ITER_STATUS_OK:
ret.status = BT_NOTIFICATION_ITERATOR_STATUS_OK;
break;
- case BT_CTF_NOTIF_ITER_STATUS_AGAIN:
+ case BT_NOTIF_ITER_STATUS_AGAIN:
/*
* Should not make it this far as this is
* medium-specific; there is nothing for the user to do
* and it should have been handled upstream.
*/
abort();
- case BT_CTF_NOTIF_ITER_STATUS_INVAL:
- case BT_CTF_NOTIF_ITER_STATUS_ERROR:
+ case BT_NOTIF_ITER_STATUS_INVAL:
+ case BT_NOTIF_ITER_STATUS_ERROR:
default:
ret.status = BT_NOTIFICATION_ITERATOR_STATUS_ERROR;
break;
}
BT_HIDDEN
-int ctf_fs_ds_file_get_packet_header_context_fields(
- struct ctf_fs_trace *ctf_fs_trace, const char *path,
- struct bt_ctf_field **packet_header_field,
- struct bt_ctf_field **packet_context_field)
+int ctf_fs_ds_file_borrow_packet_header_context_fields(
+ struct ctf_fs_ds_file *ds_file,
+ struct bt_field **packet_header_field,
+ struct bt_field **packet_context_field)
{
- enum bt_ctf_notif_iter_status notif_iter_status;
- struct ctf_fs_ds_file *ds_file;
+ enum bt_notif_iter_status notif_iter_status;
int ret = 0;
- ds_file = ctf_fs_ds_file_create(ctf_fs_trace, NULL, path, false);
- if (!ds_file) {
- goto error;
- }
-
- notif_iter_status = bt_ctf_notif_iter_get_packet_header_context_fields(
+ BT_ASSERT(ds_file);
+ notif_iter_status = bt_notif_iter_borrow_packet_header_context_fields(
ds_file->notif_iter, packet_header_field, packet_context_field);
switch (notif_iter_status) {
- case BT_CTF_NOTIF_ITER_STATUS_EOF:
- case BT_CTF_NOTIF_ITER_STATUS_OK:
+ case BT_NOTIF_ITER_STATUS_EOF:
+ case BT_NOTIF_ITER_STATUS_OK:
break;
- case BT_CTF_NOTIF_ITER_STATUS_AGAIN:
+ case BT_NOTIF_ITER_STATUS_AGAIN:
abort();
- case BT_CTF_NOTIF_ITER_STATUS_INVAL:
- case BT_CTF_NOTIF_ITER_STATUS_ERROR:
+ case BT_NOTIF_ITER_STATUS_INVAL:
+ case BT_NOTIF_ITER_STATUS_ERROR:
default:
goto error;
break;
error:
ret = -1;
- if (packet_header_field) {
- bt_put(*packet_header_field);
- }
+end:
+ return ret;
+}
- if (packet_context_field) {
- bt_put(*packet_context_field);
+BT_HIDDEN
+void ctf_fs_ds_index_destroy(struct ctf_fs_ds_index *index)
+{
+ if (!index) {
+ return;
}
-end:
- ctf_fs_ds_file_destroy(ds_file);
- return ret;
+ if (index->entries) {
+ g_array_free(index->entries, TRUE);
+ }
+ g_free(index);
}
projects / babeltrace.git / blobdiff