libbabeltrace_plugin_ctf_fs_la_LIBADD = \
$(builddir)/../common/libbabeltrace-plugin-ctf-common.la
libbabeltrace_plugin_ctf_fs_la_SOURCES = \
- fs.c \
- data-stream.c \
- metadata.c \
+ data-stream-file.c \
+ data-stream-file.h \
file.c \
- data-stream.h \
file.h \
+ fs.c \
fs.h \
lttng-index.h \
+ metadata.c \
metadata.h \
print.h
--- /dev/null
+/*
+ * Copyright 2016-2017 - Philippe Proulx <pproulx@efficios.com>
+ * Copyright 2016 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ * Copyright 2010-2011 - EfficiOS Inc. and Linux Foundation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * 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 <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#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 "file.h"
+#include "metadata.h"
+#include "../common/notif-iter/notif-iter.h"
+#include <assert.h>
+#include "data-stream-file.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"
+
+static inline
+size_t remaining_mmap_bytes(struct ctf_fs_ds_file *ds_file)
+{
+ return ds_file->mmap_valid_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 = ds_file->file->ctf_fs;
+
+ if (!ds_file->mmap_addr) {
+ goto end;
+ }
+
+ if (munmap(ds_file->mmap_addr, ds_file->mmap_len)) {
+ PERR("Cannot memory-unmap address %p (size %zu) of file \"%s\" (%p): %s\n",
+ ds_file->mmap_addr, ds_file->mmap_len,
+ ds_file->file->path->str, ds_file->file->fp,
+ strerror(errno));
+ ret = -1;
+ goto end;
+ }
+
+ ds_file->mmap_addr = NULL;
+
+end:
+ return ret;
+}
+
+static
+enum bt_ctf_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;
+
+ /* Unmap old region */
+ if (ds_file->mmap_addr) {
+ if (ds_file_munmap(ds_file)) {
+ goto error;
+ }
+
+ ds_file->mmap_offset += ds_file->mmap_valid_len;
+ ds_file->request_offset = 0;
+ }
+
+ ds_file->mmap_valid_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;
+ 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,
+ 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",
+ ds_file->mmap_len, ds_file->file->path->str,
+ ds_file->file->fp, ds_file->mmap_offset,
+ strerror(errno));
+ goto error;
+ }
+
+ goto end;
+error:
+ ds_file_munmap(ds_file);
+ ret = BT_CTF_NOTIF_ITER_MEDIUM_STATUS_ERROR;
+end:
+ return ret;
+}
+
+static
+enum bt_ctf_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;
+ 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;
+ }
+
+ /* Check if we have at least one memory-mapped byte left */
+ 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",
+ ds_file->file->path->str, ds_file->file->fp);
+ status = BT_CTF_NOTIF_ITER_MEDIUM_STATUS_EOF;
+ goto end;
+ }
+
+ status = ds_file_mmap_next(ds_file);
+ switch (status) {
+ case BT_CTF_NOTIF_ITER_MEDIUM_STATUS_OK:
+ break;
+ case BT_CTF_NOTIF_ITER_MEDIUM_STATUS_EOF:
+ goto end;
+ default:
+ PERR("Cannot memory-map next region of file \"%s\" (%p)\n",
+ ds_file->file->path->str,
+ ds_file->file->fp);
+ goto error;
+ }
+ }
+
+ *buffer_sz = MIN(remaining_mmap_bytes(ds_file), request_sz);
+ *buffer_addr = ((uint8_t *) ds_file->mmap_addr) + ds_file->request_offset;
+ ds_file->request_offset += *buffer_sz;
+ goto end;
+
+error:
+ status = BT_CTF_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 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);
+
+ if (stream_class != ds_file_stream_class) {
+ /*
+ * Not supported: two packets described by two different
+ * stream classes within the same data stream file.
+ */
+ goto end;
+ }
+
+ stream = ds_file->stream;
+
+end:
+ return stream;
+}
+
+static struct bt_ctf_notif_iter_medium_ops medops = {
+ .request_bytes = medop_request_bytes,
+ .get_stream = medop_get_stream,
+};
+
+static
+int build_index_from_idx_file(struct ctf_fs_ds_file *ds_file)
+{
+ int ret = 0;
+ 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;
+ uint64_t total_packets_size = 0;
+ size_t file_index_entry_size;
+ size_t file_entry_count;
+ size_t i;
+
+ /* 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;
+ }
+
+ directory = g_path_get_dirname(ds_file->file->path->str);
+ if (!directory) {
+ ret = -1;
+ goto end;
+ }
+
+ index_basename = g_string_new(basename);
+ if (!index_basename) {
+ ret = -1;
+ goto end;
+ }
+
+ g_string_append(index_basename, ".idx");
+ index_file_path = g_build_filename(directory, "index",
+ index_basename->str, NULL);
+ mapped_file = g_mapped_file_new(index_file_path, FALSE, NULL);
+ if (!mapped_file) {
+ ret = -1;
+ goto end;
+ }
+ 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;
+ }
+
+ mmap_begin = g_mapped_file_get_contents(mapped_file);
+ header = (struct ctf_packet_index_file_hdr *) mmap_begin;
+
+ 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;
+ }
+
+ 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;
+ }
+
+ 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 = (struct index_entry *) ds_file->index.entries->data;
+ 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;
+ }
+
+ /* Convert size in bits to bytes. */
+ packet_size /= CHAR_BIT;
+ index->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->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;
+ }
+
+ total_packets_size += packet_size;
+ file_pos += file_index_entry_size;
+ index++;
+ }
+
+ /* 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;
+ }
+end:
+ g_free(directory);
+ g_free(basename);
+ g_free(index_file_path);
+ if (index_basename) {
+ g_string_free(index_basename, TRUE);
+ }
+ if (mapped_file) {
+ g_mapped_file_unref(mapped_file);
+ }
+ return ret;
+invalid_index:
+ g_array_free(ds_file->index.entries, TRUE);
+ goto end;
+}
+
+static
+int build_index_from_data_stream_file(struct ctf_fs_ds_file *stream)
+{
+ return 0;
+}
+
+static
+int init_stream_index(struct ctf_fs_ds_file *ds_file)
+{
+ int ret;
+
+ ret = build_index_from_idx_file(ds_file);
+ if (!ret) {
+ goto end;
+ }
+
+ ret = build_index_from_data_stream_file(ds_file);
+end:
+ return ret;
+}
+
+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)
+{
+ int ret;
+ 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);
+ 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");
+ 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);
+ 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;
+ }
+ }
+
+ goto end;
+
+error:
+ /* Do not touch "borrowed" file. */
+ ctf_fs_ds_file_destroy(ds_file);
+ ds_file = NULL;
+
+end:
+ return ds_file;
+}
+
+BT_HIDDEN
+void ctf_fs_ds_file_destroy(struct ctf_fs_ds_file *ds_file)
+{
+ if (!ds_file) {
+ return;
+ }
+
+ bt_put(ds_file->cc_prio_map);
+ bt_put(ds_file->stream);
+ (void) ds_file_munmap(ds_file);
+
+ if (ds_file->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 ctf_fs_ds_file *ds_file)
+{
+ enum bt_ctf_notif_iter_status notif_iter_status;
+ struct bt_notification_iterator_next_return ret = {
+ .status = BT_NOTIFICATION_ITERATOR_STATUS_ERROR,
+ .notification = NULL,
+ };
+
+ notif_iter_status = bt_ctf_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:
+ ret.status = BT_NOTIFICATION_ITERATOR_STATUS_END;
+ break;
+ case BT_CTF_NOTIF_ITER_STATUS_OK:
+ ret.status = BT_NOTIFICATION_ITERATOR_STATUS_OK;
+ break;
+ case BT_CTF_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.
+ */
+ assert(false);
+ case BT_CTF_NOTIF_ITER_STATUS_INVAL:
+ case BT_CTF_NOTIF_ITER_STATUS_ERROR:
+ default:
+ ret.status = BT_NOTIFICATION_ITERATOR_STATUS_ERROR;
+ break;
+ }
+
+ return ret;
+}
+
+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)
+{
+ enum bt_ctf_notif_iter_status notif_iter_status;
+ struct ctf_fs_ds_file *ds_file;
+ 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(
+ 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:
+ break;
+ case BT_CTF_NOTIF_ITER_STATUS_AGAIN:
+ assert(false);
+ case BT_CTF_NOTIF_ITER_STATUS_INVAL:
+ case BT_CTF_NOTIF_ITER_STATUS_ERROR:
+ default:
+ goto error;
+ break;
+ }
+
+ goto end;
+
+error:
+ ret = -1;
+
+ if (packet_header_field) {
+ bt_put(*packet_header_field);
+ }
+
+ if (packet_context_field) {
+ bt_put(*packet_context_field);
+ }
+
+end:
+ ctf_fs_ds_file_destroy(ds_file);
+ return ret;
+}
--- /dev/null
+#ifndef CTF_FS_DS_FILE_H
+#define CTF_FS_DS_FILE_H
+
+/*
+ * Copyright 2016 - Philippe Proulx <pproulx@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * 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 <stdio.h>
+#include <stdbool.h>
+#include <glib.h>
+#include <babeltrace/babeltrace-internal.h>
+#include <babeltrace/ctf-ir/trace.h>
+
+#include "../common/notif-iter/notif-iter.h"
+#include "lttng-index.h"
+
+struct ctf_fs_component;
+struct ctf_fs_file;
+struct ctf_fs_trace;
+struct ctf_fs_ds_file;
+
+struct index_entry {
+ uint64_t offset; /* in bytes. */
+ uint64_t packet_size; /* in bytes. */
+ /* relative to the packet context field's mapped clock. */
+ uint64_t timestamp_begin, timestamp_end;
+};
+
+struct index {
+ GArray *entries; /* Array of struct index_entry. */
+};
+
+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);
+
+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);
+
+BT_HIDDEN
+void ctf_fs_ds_file_destroy(struct ctf_fs_ds_file *stream);
+
+BT_HIDDEN
+struct bt_notification_iterator_next_return ctf_fs_ds_file_next(
+ struct ctf_fs_ds_file *stream);
+
+#endif /* CTF_FS_DS_FILE_H */
+++ /dev/null
-/*
- * Copyright 2016 - Philippe Proulx <pproulx@efficios.com>
- * Copyright 2016 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
- * Copyright 2010-2011 - EfficiOS Inc. and Linux Foundation
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * 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 <stdio.h>
-#include <stdint.h>
-#include <stdlib.h>
-#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 "file.h"
-#include "metadata.h"
-#include "../common/notif-iter/notif-iter.h"
-#include <assert.h>
-#include "data-stream.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"
-
-static inline
-size_t remaining_mmap_bytes(struct ctf_fs_stream *stream)
-{
- return stream->mmap_valid_len - stream->request_offset;
-}
-
-static
-int stream_munmap(struct ctf_fs_stream *stream)
-{
- int ret = 0;
- struct ctf_fs_component *ctf_fs = stream->file->ctf_fs;
-
- if (munmap(stream->mmap_addr, stream->mmap_len)) {
- PERR("Cannot memory-unmap address %p (size %zu) of file \"%s\" (%p): %s\n",
- stream->mmap_addr, stream->mmap_len,
- stream->file->path->str, stream->file->fp,
- strerror(errno));
- ret = -1;
- goto end;
- }
-end:
- return ret;
-}
-
-static
-enum bt_ctf_notif_iter_medium_status mmap_next(struct ctf_fs_stream *stream)
-{
- enum bt_ctf_notif_iter_medium_status ret =
- BT_CTF_NOTIF_ITER_MEDIUM_STATUS_OK;
- struct ctf_fs_component *ctf_fs = stream->file->ctf_fs;
-
- /* Unmap old region */
- if (stream->mmap_addr) {
- if (stream_munmap(stream)) {
- goto error;
- }
-
- stream->mmap_offset += stream->mmap_valid_len;
- stream->request_offset = 0;
- }
-
- stream->mmap_valid_len = MIN(stream->file->size - stream->mmap_offset,
- stream->mmap_max_len);
- if (stream->mmap_valid_len == 0) {
- ret = BT_CTF_NOTIF_ITER_MEDIUM_STATUS_EOF;
- goto end;
- }
- /* Round up to next page, assuming page size being a power of 2. */
- stream->mmap_len = (stream->mmap_valid_len + ctf_fs->page_size - 1)
- & ~(ctf_fs->page_size - 1);
- /* Map new region */
- assert(stream->mmap_len);
- stream->mmap_addr = mmap((void *) 0, stream->mmap_len,
- PROT_READ, MAP_PRIVATE, fileno(stream->file->fp),
- stream->mmap_offset);
- if (stream->mmap_addr == MAP_FAILED) {
- PERR("Cannot memory-map address (size %zu) of file \"%s\" (%p) at offset %zu: %s\n",
- stream->mmap_len, stream->file->path->str,
- stream->file->fp, stream->mmap_offset,
- strerror(errno));
- goto error;
- }
-
- goto end;
-error:
- stream_munmap(stream);
- ret = BT_CTF_NOTIF_ITER_MEDIUM_STATUS_ERROR;
-end:
- return ret;
-}
-
-static
-enum bt_ctf_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;
- struct ctf_fs_stream *stream = data;
- struct ctf_fs_component *ctf_fs = stream->file->ctf_fs;
-
- if (request_sz == 0) {
- goto end;
- }
-
- /* Check if we have at least one memory-mapped byte left */
- if (remaining_mmap_bytes(stream) == 0) {
- /* Are we at the end of the file? */
- if (stream->mmap_offset >= stream->file->size) {
- PDBG("Reached end of file \"%s\" (%p)\n",
- stream->file->path->str, stream->file->fp);
- status = BT_CTF_NOTIF_ITER_MEDIUM_STATUS_EOF;
- goto end;
- }
-
- status = mmap_next(stream);
- switch (status) {
- case BT_CTF_NOTIF_ITER_MEDIUM_STATUS_OK:
- break;
- case BT_CTF_NOTIF_ITER_MEDIUM_STATUS_EOF:
- goto end;
- default:
- PERR("Cannot memory-map next region of file \"%s\" (%p)\n",
- stream->file->path->str,
- stream->file->fp);
- goto error;
- }
- }
-
- *buffer_sz = MIN(remaining_mmap_bytes(stream), request_sz);
- *buffer_addr = ((uint8_t *) stream->mmap_addr) + stream->request_offset;
- stream->request_offset += *buffer_sz;
- goto end;
-
-error:
- status = BT_CTF_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 ctf_fs_stream *fs_stream = data;
- struct ctf_fs_component *ctf_fs = fs_stream->file->ctf_fs;
-
- if (!fs_stream->stream) {
- int64_t id = bt_ctf_stream_class_get_id(stream_class);
-
- PDBG("Creating stream out of stream class %" PRId64 "\n", id);
- fs_stream->stream = bt_ctf_stream_create(stream_class,
- fs_stream->file->path->str);
- if (!fs_stream->stream) {
- PERR("Cannot create stream (stream class %" PRId64 ")\n",
- id);
- }
- }
-
- return fs_stream->stream;
-}
-
-static struct bt_ctf_notif_iter_medium_ops medops = {
- .request_bytes = medop_request_bytes,
- .get_stream = medop_get_stream,
-};
-
-static
-int build_index_from_idx_file(struct ctf_fs_stream *stream)
-{
- int ret = 0;
- 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;
- uint64_t total_packets_size = 0;
- size_t file_index_entry_size;
- size_t file_entry_count;
- size_t i;
-
- /* Look for index file in relative path index/name.idx. */
- basename = g_path_get_basename(stream->file->path->str);
- if (!basename) {
- ret = -1;
- goto end;
- }
-
- directory = g_path_get_dirname(stream->file->path->str);
- if (!directory) {
- ret = -1;
- goto end;
- }
-
- index_basename = g_string_new(basename);
- if (!index_basename) {
- ret = -1;
- goto end;
- }
-
- g_string_append(index_basename, ".idx");
- index_file_path = g_build_filename(directory, "index",
- index_basename->str, NULL);
- mapped_file = g_mapped_file_new(index_file_path, FALSE, NULL);
- if (!mapped_file) {
- ret = -1;
- goto end;
- }
- 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;
- }
-
- mmap_begin = g_mapped_file_get_contents(mapped_file);
- header = (struct ctf_packet_index_file_hdr *) mmap_begin;
-
- 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;
- }
-
- 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;
- }
-
- stream->index.entries = g_array_sized_new(FALSE, TRUE,
- sizeof(struct index_entry), file_entry_count);
- if (!stream->index.entries) {
- ret = -1;
- goto end;
- }
- index = (struct index_entry *) stream->index.entries->data;
- 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;
- }
-
- /* Convert size in bits to bytes. */
- packet_size /= CHAR_BIT;
- index->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->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;
- }
-
- total_packets_size += packet_size;
- file_pos += file_index_entry_size;
- index++;
- }
-
- /* Validate that the index addresses the complete stream. */
- if (stream->file->size != total_packets_size) {
- printf_error("Invalid index; indexed size != stream file size");
- ret = -1;
- goto invalid_index;
- }
-end:
- g_free(directory);
- g_free(basename);
- g_free(index_file_path);
- if (index_basename) {
- g_string_free(index_basename, TRUE);
- }
- if (mapped_file) {
- g_mapped_file_unref(mapped_file);
- }
- return ret;
-invalid_index:
- g_array_free(stream->index.entries, TRUE);
- goto end;
-}
-
-static
-int build_index_from_stream(struct ctf_fs_stream *stream)
-{
- return 0;
-}
-
-static
-int init_stream_index(struct ctf_fs_stream *stream)
-{
- int ret;
-
- ret = build_index_from_idx_file(stream);
- if (!ret) {
- goto end;
- }
-
- ret = build_index_from_stream(stream);
-end:
- return ret;
-}
-
-BT_HIDDEN
-struct ctf_fs_stream *ctf_fs_stream_create(
- struct ctf_fs_trace *ctf_fs_trace, const char *path)
-{
- int ret;
- struct ctf_fs_stream *ctf_fs_stream = g_new0(struct ctf_fs_stream, 1);
-
- if (!ctf_fs_stream) {
- goto error;
- }
-
- ctf_fs_stream->file = ctf_fs_file_create(ctf_fs_trace->ctf_fs);
- if (!ctf_fs_stream->file) {
- goto error;
- }
-
- ctf_fs_stream->cc_prio_map = bt_get(ctf_fs_trace->cc_prio_map);
- g_string_assign(ctf_fs_stream->file->path, path);
- ret = ctf_fs_file_open(ctf_fs_trace->ctf_fs, ctf_fs_stream->file, "rb");
- if (ret) {
- goto error;
- }
-
- ctf_fs_stream->notif_iter = bt_ctf_notif_iter_create(
- ctf_fs_trace->metadata->trace,
- ctf_fs_trace->ctf_fs->page_size, medops, ctf_fs_stream,
- ctf_fs_trace->ctf_fs->error_fp);
- if (!ctf_fs_stream->notif_iter) {
- goto error;
- }
-
- ctf_fs_stream->mmap_max_len = ctf_fs_trace->ctf_fs->page_size * 2048;
- ret = init_stream_index(ctf_fs_stream);
- if (ret) {
- goto error;
- }
-
- goto end;
-
-error:
- /* Do not touch "borrowed" file. */
- ctf_fs_stream_destroy(ctf_fs_stream);
- ctf_fs_stream = NULL;
-
-end:
- return ctf_fs_stream;
-}
-
-BT_HIDDEN
-void ctf_fs_stream_destroy(struct ctf_fs_stream *ctf_fs_stream)
-{
- if (!ctf_fs_stream) {
- return;
- }
-
- bt_put(ctf_fs_stream->cc_prio_map);
-
- if (ctf_fs_stream->file) {
- ctf_fs_file_destroy(ctf_fs_stream->file);
- }
-
- if (ctf_fs_stream->stream) {
- BT_PUT(ctf_fs_stream->stream);
- }
-
- if (ctf_fs_stream->notif_iter) {
- bt_ctf_notif_iter_destroy(ctf_fs_stream->notif_iter);
- }
-
- if (ctf_fs_stream->index.entries) {
- g_array_free(ctf_fs_stream->index.entries, TRUE);
- }
-
- g_free(ctf_fs_stream);
-}
-
-BT_HIDDEN
-struct bt_notification_iterator_next_return ctf_fs_stream_next(
- struct ctf_fs_stream *stream)
-{
- enum bt_ctf_notif_iter_status notif_iter_status;
- struct bt_notification_iterator_next_return ret = {
- .status = BT_NOTIFICATION_ITERATOR_STATUS_ERROR,
- .notification = NULL,
- };
-
- if (stream->end_reached) {
- notif_iter_status = BT_CTF_NOTIF_ITER_STATUS_EOF;
- goto translate_status;
- }
-
- notif_iter_status = bt_ctf_notif_iter_get_next_notification(
- stream->notif_iter, stream->cc_prio_map, &ret.notification);
- if (notif_iter_status != BT_CTF_NOTIF_ITER_STATUS_OK &&
- notif_iter_status != BT_CTF_NOTIF_ITER_STATUS_EOF) {
- goto translate_status;
- }
-
- /* Should be handled in bt_ctf_notif_iter_get_next_notification. */
- if (notif_iter_status == BT_CTF_NOTIF_ITER_STATUS_EOF) {
- ret.notification = bt_notification_stream_end_create(
- stream->stream);
- if (!ret.notification) {
- notif_iter_status = BT_CTF_NOTIF_ITER_STATUS_ERROR;
- goto translate_status;
- }
-
- notif_iter_status = BT_CTF_NOTIF_ITER_STATUS_OK;
- stream->end_reached = true;
- }
-
-translate_status:
- switch (notif_iter_status) {
- case BT_CTF_NOTIF_ITER_STATUS_EOF:
- ret.status = BT_NOTIFICATION_ITERATOR_STATUS_END;
- break;
- case BT_CTF_NOTIF_ITER_STATUS_OK:
- ret.status = BT_NOTIFICATION_ITERATOR_STATUS_OK;
- break;
- case BT_CTF_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.
- */
- assert(false);
- case BT_CTF_NOTIF_ITER_STATUS_INVAL:
- case BT_CTF_NOTIF_ITER_STATUS_ERROR:
- default:
- ret.status = BT_NOTIFICATION_ITERATOR_STATUS_ERROR;
- break;
- }
-
- return ret;
-}
+++ /dev/null
-#ifndef CTF_FS_DATA_STREAM_H
-#define CTF_FS_DATA_STREAM_H
-
-/*
- * Copyright 2016 - Philippe Proulx <pproulx@efficios.com>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * 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 <stdio.h>
-#include <glib.h>
-#include <babeltrace/babeltrace-internal.h>
-#include <babeltrace/ctf-ir/trace.h>
-
-#include "../common/notif-iter/notif-iter.h"
-#include "lttng-index.h"
-
-struct ctf_fs_component;
-struct ctf_fs_file;
-struct ctf_fs_trace;
-struct ctf_fs_stream;
-
-struct index_entry {
- uint64_t offset; /* in bytes. */
- uint64_t packet_size; /* in bytes. */
- /* relative to the packet context field's mapped clock. */
- uint64_t timestamp_begin, timestamp_end;
-};
-
-struct index {
- GArray *entries; /* Array of struct index_entry. */
-};
-
-BT_HIDDEN
-struct ctf_fs_stream *ctf_fs_stream_create(
- struct ctf_fs_trace *ctf_fs_trace, const char *path);
-
-BT_HIDDEN
-void ctf_fs_stream_destroy(struct ctf_fs_stream *stream);
-
-BT_HIDDEN
-int ctf_fs_data_stream_open_streams(struct ctf_fs_component *ctf_fs);
-
-BT_HIDDEN
-struct bt_notification_iterator_next_return ctf_fs_stream_next(
- struct ctf_fs_stream *stream);
-
-#endif /* CTF_FS_DATA_STREAM_H */
#include <babeltrace/ctf-ir/packet.h>
#include <babeltrace/ctf-ir/clock-class.h>
+#include <babeltrace/ctf-ir/stream.h>
+#include <babeltrace/ctf-ir/fields.h>
#include <babeltrace/graph/private-port.h>
#include <babeltrace/graph/private-component.h>
#include <babeltrace/graph/private-component-source.h>
#include <plugins-common.h>
#include <glib.h>
#include <assert.h>
+#include <inttypes.h>
#include <stdbool.h>
#include <unistd.h>
#include "fs.h"
#include "metadata.h"
-#include "data-stream.h"
+#include "data-stream-file.h"
#include "file.h"
#include "../common/metadata/decoder.h"
BT_HIDDEN
bool ctf_fs_debug;
+static
+int notif_iter_data_set_current_ds_file(struct ctf_fs_notif_iter_data *notif_iter_data)
+{
+ struct ctf_fs_ds_file_info *ds_file_info;
+ int ret = 0;
+
+ assert(notif_iter_data->ds_file_info_index <
+ notif_iter_data->ds_file_group->ds_file_infos->len);
+ ds_file_info = g_ptr_array_index(
+ notif_iter_data->ds_file_group->ds_file_infos,
+ notif_iter_data->ds_file_info_index);
+
+ ctf_fs_ds_file_destroy(notif_iter_data->ds_file);
+ notif_iter_data->ds_file = ctf_fs_ds_file_create(
+ notif_iter_data->ds_file_group->ctf_fs_trace,
+ notif_iter_data->ds_file_group->stream,
+ ds_file_info->path->str, true);
+ if (!notif_iter_data->ds_file) {
+ ret = -1;
+ }
+
+ return ret;
+}
+
+static
+void ctf_fs_notif_iter_data_destroy(
+ struct ctf_fs_notif_iter_data *notif_iter_data)
+{
+ if (!notif_iter_data) {
+ return;
+ }
+
+ ctf_fs_ds_file_destroy(notif_iter_data->ds_file);
+ g_free(notif_iter_data);
+}
+
struct bt_notification_iterator_next_return ctf_fs_iterator_next(
struct bt_private_notification_iterator *iterator)
{
- struct ctf_fs_stream *fs_stream =
+ struct bt_notification_iterator_next_return next_ret;
+ struct ctf_fs_notif_iter_data *notif_iter_data =
bt_private_notification_iterator_get_user_data(iterator);
+ int ret;
+
+ assert(notif_iter_data->ds_file);
+ next_ret = ctf_fs_ds_file_next(notif_iter_data->ds_file);
+ if (next_ret.status == BT_NOTIFICATION_ITERATOR_STATUS_END) {
+ assert(!next_ret.notification);
+ notif_iter_data->ds_file_info_index++;
+
+ if (notif_iter_data->ds_file_info_index ==
+ notif_iter_data->ds_file_group->ds_file_infos->len) {
+ /*
+ * No more stream files to read: we reached the
+ * real end.
+ */
+ goto end;
+ }
+
+ /*
+ * Open and start reading the next stream file within
+ * our stream file group.
+ */
+ ret = notif_iter_data_set_current_ds_file(notif_iter_data);
+ if (ret) {
+ next_ret.status = BT_NOTIFICATION_ITERATOR_STATUS_ERROR;
+ goto end;
+ }
+
+ next_ret = ctf_fs_ds_file_next(notif_iter_data->ds_file);
+
+ /*
+ * We should not get BT_NOTIFICATION_ITERATOR_STATUS_END
+ * with a brand new stream file because empty stream
+ * files are not even part of stream file groups, which
+ * means we're sure to get at least one pair of "packet
+ * begin" and "packet end" notifications in the case of
+ * a single, empty packet.
+ */
+ assert(next_ret.status != BT_NOTIFICATION_ITERATOR_STATUS_END);
+ }
- return ctf_fs_stream_next(fs_stream);
+end:
+ return next_ret;
}
void ctf_fs_iterator_finalize(struct bt_private_notification_iterator *it)
{
- void *ctf_fs_stream =
+ void *notif_iter_data =
bt_private_notification_iterator_get_user_data(it);
- ctf_fs_stream_destroy(ctf_fs_stream);
+ ctf_fs_notif_iter_data_destroy(notif_iter_data);
}
enum bt_notification_iterator_status ctf_fs_iterator_init(
struct bt_private_notification_iterator *it,
struct bt_private_port *port)
{
- struct ctf_fs_stream *ctf_fs_stream = NULL;
struct ctf_fs_port_data *port_data;
+ struct ctf_fs_notif_iter_data *notif_iter_data = NULL;
enum bt_notification_iterator_status ret =
BT_NOTIFICATION_ITERATOR_STATUS_OK;
+ int iret;
port_data = bt_private_port_get_user_data(port);
if (!port_data) {
goto error;
}
- ctf_fs_stream = ctf_fs_stream_create(port_data->ctf_fs_trace,
- port_data->path->str);
- if (!ctf_fs_stream) {
+ notif_iter_data = g_new0(struct ctf_fs_notif_iter_data, 1);
+ if (!notif_iter_data) {
+ ret = BT_NOTIFICATION_ITERATOR_STATUS_NOMEM;
+ goto error;
+ }
+
+ notif_iter_data->ds_file_group = port_data->ds_file_group;
+ iret = notif_iter_data_set_current_ds_file(notif_iter_data);
+ if (iret) {
+ ret = BT_NOTIFICATION_ITERATOR_STATUS_ERROR;
goto error;
}
- ret = bt_private_notification_iterator_set_user_data(it, ctf_fs_stream);
+ ret = bt_private_notification_iterator_set_user_data(it, notif_iter_data);
if (ret) {
goto error;
}
- ctf_fs_stream = NULL;
+ notif_iter_data = NULL;
goto end;
error:
}
end:
- ctf_fs_stream_destroy(ctf_fs_stream);
+ ctf_fs_notif_iter_data_destroy(notif_iter_data);
return ret;
}
return;
}
+ if (ctf_fs_trace->ds_file_groups) {
+ g_ptr_array_free(ctf_fs_trace->ds_file_groups, TRUE);
+ }
+
if (ctf_fs_trace->path) {
g_string_free(ctf_fs_trace->path, TRUE);
}
return;
}
- if (port_data->path) {
- g_string_free(port_data->path, TRUE);
- }
-
g_free(port_data);
}
static
int create_one_port_for_trace(struct ctf_fs_trace *ctf_fs_trace,
- const char *stream_path)
+ struct ctf_fs_ds_file_group *ds_file_group)
{
int ret = 0;
struct bt_private_port *port = NULL;
struct ctf_fs_port_data *port_data = NULL;
GString *port_name = NULL;
struct ctf_fs_component *ctf_fs = ctf_fs_trace->ctf_fs;
+ struct ctf_fs_ds_file_info *ds_file_info =
+ g_ptr_array_index(ds_file_group->ds_file_infos, 0);
port_name = g_string_new(NULL);
if (!port_name) {
goto error;
}
- /* Assign the name for the new output port */
- g_string_printf(port_name, "%s", stream_path);
+ /*
+ * Assign the name for the new output port. If there's more than
+ * one stream file in the stream file group, the first
+ * (earliest) stream file's path is used.
+ */
+ assert(ds_file_group->ds_file_infos->len > 0);
+ ds_file_info = g_ptr_array_index(ds_file_group->ds_file_infos, 0);
+ g_string_assign(port_name, ds_file_info->path->str);
PDBG("Creating one port named `%s`\n", port_name->str);
/* Create output port for this file */
goto error;
}
- port_data->ctf_fs_trace = ctf_fs_trace;
- port_data->path = g_string_new(stream_path);
- if (!port_data->path) {
- goto error;
- }
-
+ port_data->ds_file_group = ds_file_group;
port = bt_private_component_source_add_output_private_port(
ctf_fs->priv_comp, port_name->str, port_data);
if (!port) {
static
int create_ports_for_trace(struct ctf_fs_trace *ctf_fs_trace)
+{
+ int ret = 0;
+ struct ctf_fs_component *ctf_fs = ctf_fs_trace->ctf_fs;
+ size_t i;
+
+ /* Create one output port for each stream file group */
+ for (i = 0; i < ctf_fs_trace->ds_file_groups->len; i++) {
+ struct ctf_fs_ds_file_group *ds_file_group =
+ g_ptr_array_index(ctf_fs_trace->ds_file_groups, i);
+
+ ret = create_one_port_for_trace(ctf_fs_trace, ds_file_group);
+ if (ret) {
+ PERR("Cannot create output port.\n");
+ goto end;
+ }
+ }
+
+end:
+ return ret;
+}
+
+uint64_t get_packet_header_stream_instance_id(struct ctf_fs_trace *ctf_fs_trace,
+ struct bt_ctf_field *packet_header_field)
+{
+ struct bt_ctf_field *stream_instance_id_field = NULL;
+ uint64_t stream_instance_id = -1ULL;
+ int ret;
+
+ if (!packet_header_field) {
+ goto end;
+ }
+
+ stream_instance_id_field = bt_ctf_field_structure_get_field_by_name(
+ packet_header_field, "stream_instance_id");
+ if (!stream_instance_id_field) {
+ goto end;
+ }
+
+ ret = bt_ctf_field_unsigned_integer_get_value(stream_instance_id_field,
+ &stream_instance_id);
+ if (ret) {
+ stream_instance_id = -1ULL;
+ goto end;
+ }
+
+end:
+ bt_put(stream_instance_id_field);
+ return stream_instance_id;
+}
+
+struct bt_ctf_stream_class *stream_class_from_packet_header(
+ struct ctf_fs_trace *ctf_fs_trace,
+ struct bt_ctf_field *packet_header_field)
+{
+ struct bt_ctf_field *stream_id_field = NULL;
+ struct bt_ctf_stream_class *stream_class = NULL;
+ uint64_t stream_id = -1ULL;
+ int ret;
+
+ if (!packet_header_field) {
+ goto single_stream_class;
+ }
+
+ stream_id_field = bt_ctf_field_structure_get_field_by_name(
+ packet_header_field, "stream_id");
+ if (!stream_id_field) {
+ goto end;
+ }
+
+ ret = bt_ctf_field_unsigned_integer_get_value(stream_id_field,
+ &stream_id);
+ if (ret) {
+ stream_id = -1ULL;
+ }
+
+ if (stream_id == -1ULL) {
+single_stream_class:
+ /* Single stream class */
+ if (bt_ctf_trace_get_stream_class_count(
+ ctf_fs_trace->metadata->trace) == 0) {
+ goto end;
+ }
+
+ stream_class = bt_ctf_trace_get_stream_class_by_index(
+ ctf_fs_trace->metadata->trace, 0);
+ } else {
+ stream_class = bt_ctf_trace_get_stream_class_by_id(
+ ctf_fs_trace->metadata->trace, stream_id);
+ }
+
+end:
+ bt_put(stream_id_field);
+ return stream_class;
+}
+
+uint64_t get_packet_context_timestamp_begin_ns(
+ struct ctf_fs_trace *ctf_fs_trace,
+ struct bt_ctf_field *packet_context_field)
+{
+ int ret;
+ struct bt_ctf_field *timestamp_begin_field = NULL;
+ struct bt_ctf_field_type *timestamp_begin_ft = NULL;
+ uint64_t timestamp_begin_raw_value = -1ULL;
+ uint64_t timestamp_begin_ns = -1ULL;
+ int64_t timestamp_begin_ns_signed;
+ struct bt_ctf_clock_class *timestamp_begin_clock_class = NULL;
+ struct bt_ctf_clock_value *clock_value = NULL;
+
+ if (!packet_context_field) {
+ goto end;
+ }
+
+ timestamp_begin_field = bt_ctf_field_structure_get_field_by_name(
+ packet_context_field, "timestamp_begin");
+ if (!timestamp_begin_field) {
+ goto end;
+ }
+
+ timestamp_begin_ft = bt_ctf_field_get_type(timestamp_begin_field);
+ assert(timestamp_begin_ft);
+ timestamp_begin_clock_class =
+ bt_ctf_field_type_integer_get_mapped_clock_class(timestamp_begin_ft);
+ if (!timestamp_begin_clock_class) {
+ goto end;
+ }
+
+ ret = bt_ctf_field_unsigned_integer_get_value(timestamp_begin_field,
+ ×tamp_begin_raw_value);
+ if (ret) {
+ goto end;
+ }
+
+ clock_value = bt_ctf_clock_value_create(timestamp_begin_clock_class,
+ timestamp_begin_raw_value);
+ if (!clock_value) {
+ goto end;
+ }
+
+ ret = bt_ctf_clock_value_get_value_ns_from_epoch(clock_value,
+ ×tamp_begin_ns_signed);
+ if (ret) {
+ goto end;
+ }
+
+ timestamp_begin_ns = (uint64_t) timestamp_begin_ns_signed;
+
+end:
+ bt_put(timestamp_begin_field);
+ bt_put(timestamp_begin_ft);
+ bt_put(timestamp_begin_clock_class);
+ bt_put(clock_value);
+ return timestamp_begin_ns;
+}
+
+static
+void ctf_fs_ds_file_info_destroy(struct ctf_fs_ds_file_info *ds_file_info)
+{
+ if (!ds_file_info) {
+ return;
+ }
+
+ if (ds_file_info->path) {
+ g_string_free(ds_file_info->path, TRUE);
+ }
+
+ g_free(ds_file_info);
+}
+
+static
+struct ctf_fs_ds_file_info *ctf_fs_ds_file_info_create(const char *path,
+ uint64_t begin_ns)
+{
+ struct ctf_fs_ds_file_info *ds_file_info;
+
+ ds_file_info = g_new0(struct ctf_fs_ds_file_info, 1);
+ if (!ds_file_info) {
+ goto end;
+ }
+
+ ds_file_info->path = g_string_new(path);
+ if (!ds_file_info->path) {
+ ctf_fs_ds_file_info_destroy(ds_file_info);
+ ds_file_info = NULL;
+ goto end;
+ }
+
+ ds_file_info->begin_ns = begin_ns;
+
+end:
+ return ds_file_info;
+}
+
+static
+void ctf_fs_ds_file_group_destroy(struct ctf_fs_ds_file_group *ds_file_group)
+{
+ if (!ds_file_group) {
+ return;
+ }
+
+ if (ds_file_group->ds_file_infos) {
+ g_ptr_array_free(ds_file_group->ds_file_infos, TRUE);
+ }
+
+ bt_put(ds_file_group->stream);
+ g_free(ds_file_group);
+}
+
+static
+struct ctf_fs_ds_file_group *ctf_fs_ds_file_group_create(
+ struct ctf_fs_trace *ctf_fs_trace,
+ struct bt_ctf_stream_class *stream_class,
+ uint64_t stream_instance_id)
+{
+ struct ctf_fs_ds_file_group *ds_file_group;
+
+ assert(stream_class);
+ ds_file_group = g_new0(struct ctf_fs_ds_file_group, 1);
+ if (!ds_file_group) {
+ goto error;
+ }
+
+ ds_file_group->ds_file_infos = g_ptr_array_new_with_free_func(
+ (GDestroyNotify) ctf_fs_ds_file_info_destroy);
+ if (!ds_file_group->ds_file_infos) {
+ goto error;
+ }
+
+ if (stream_instance_id == -1ULL) {
+ ds_file_group->stream = bt_ctf_stream_create(
+ stream_class, NULL);
+ } else {
+ ds_file_group->stream = bt_ctf_stream_create_with_id(
+ stream_class, NULL, stream_instance_id);
+ }
+
+ if (!ds_file_group->stream) {
+ goto error;
+ }
+
+ ds_file_group->ctf_fs_trace = ctf_fs_trace;
+
+ goto end;
+
+error:
+ ctf_fs_ds_file_group_destroy(ds_file_group);
+ ds_file_group = NULL;
+
+end:
+ return ds_file_group;
+}
+
+static
+int ctf_fs_ds_file_group_add_ds_file_info(
+ struct ctf_fs_ds_file_group *ds_file_group,
+ const char *path, uint64_t begin_ns)
+{
+ struct ctf_fs_ds_file_info *ds_file_info;
+ gint i = 0;
+ int ret = 0;
+
+ ds_file_info = ctf_fs_ds_file_info_create(path, begin_ns);
+ if (!ds_file_info) {
+ goto error;
+ }
+
+ /* Find a spot to insert this one */
+ for (i = 0; i < ds_file_group->ds_file_infos->len; i++) {
+ struct ctf_fs_ds_file_info *other_ds_file_info =
+ g_ptr_array_index(ds_file_group->ds_file_infos, i);
+
+ if (begin_ns < other_ds_file_info->begin_ns) {
+ break;
+ }
+ }
+
+ if (i == ds_file_group->ds_file_infos->len) {
+ /* Append instead */
+ i = -1;
+ }
+
+ g_ptr_array_insert(ds_file_group->ds_file_infos, i, ds_file_info);
+ ds_file_info = NULL;
+ goto end;
+
+error:
+ ctf_fs_ds_file_info_destroy(ds_file_info);
+ ret = -1;
+
+end:
+ return ret;
+}
+
+static
+int add_ds_file_to_ds_file_group(struct ctf_fs_trace *ctf_fs_trace,
+ const char *path)
+{
+ struct bt_ctf_field *packet_header_field = NULL;
+ struct bt_ctf_field *packet_context_field = NULL;
+ struct bt_ctf_stream_class *stream_class = NULL;
+ struct ctf_fs_component *ctf_fs = ctf_fs_trace->ctf_fs;
+ uint64_t stream_instance_id = -1ULL;
+ uint64_t begin_ns = -1ULL;
+ struct ctf_fs_ds_file_group *ds_file_group = NULL;
+ bool add_group = false;
+ int ret;
+ size_t i;
+
+ ret = ctf_fs_ds_file_get_packet_header_context_fields(
+ ctf_fs_trace, path, &packet_header_field,
+ &packet_context_field);
+ if (ret) {
+ PERR("Cannot get stream file's first packet's header and context fields (`%s`).\n",
+ path);
+ goto error;
+ }
+
+ stream_instance_id = get_packet_header_stream_instance_id(ctf_fs_trace,
+ packet_header_field);
+ begin_ns = get_packet_context_timestamp_begin_ns(ctf_fs_trace,
+ packet_context_field);
+ stream_class = stream_class_from_packet_header(ctf_fs_trace,
+ packet_header_field);
+ if (!stream_class) {
+ goto error;
+ }
+
+ if (begin_ns == -1ULL) {
+ /*
+ * No beggining timestamp to sort the stream files
+ * within a stream file group, so consider that this
+ * file must be the only one within its group.
+ */
+ stream_instance_id = -1ULL;
+ }
+
+ if (stream_instance_id == -1ULL) {
+ /*
+ * No stream instance ID or no beginning timestamp:
+ * create a unique stream file group for this stream
+ * file because, even if there's a stream instance ID,
+ * there's no timestamp to order the file within its
+ * group.
+ */
+
+ ds_file_group = ctf_fs_ds_file_group_create(ctf_fs_trace,
+ stream_class, stream_instance_id);
+ if (!ds_file_group) {
+ goto error;
+ }
+
+ ret = ctf_fs_ds_file_group_add_ds_file_info(ds_file_group,
+ path, begin_ns);
+ if (ret) {
+ goto error;
+ }
+
+ add_group = true;
+ goto end;
+ }
+
+ assert(stream_instance_id != -1ULL);
+ assert(begin_ns != -1ULL);
+
+ /* Find an existing stream file group with this ID */
+ for (i = 0; i < ctf_fs_trace->ds_file_groups->len; i++) {
+ int64_t id;
+ struct bt_ctf_stream_class *cand_stream_class;
+
+ ds_file_group = g_ptr_array_index(
+ ctf_fs_trace->ds_file_groups, i);
+ id = bt_ctf_stream_get_id(ds_file_group->stream);
+ cand_stream_class = bt_ctf_stream_get_class(
+ ds_file_group->stream);
+
+ assert(cand_stream_class);
+ bt_put(cand_stream_class);
+
+ if (cand_stream_class == stream_class &&
+ (uint64_t) id == stream_instance_id) {
+ break;
+ }
+
+ ds_file_group = NULL;
+ }
+
+ if (!ds_file_group) {
+ ds_file_group = ctf_fs_ds_file_group_create(ctf_fs_trace,
+ stream_class, stream_instance_id);
+ if (!ds_file_group) {
+ goto error;
+ }
+
+ add_group = true;
+ }
+
+ ret = ctf_fs_ds_file_group_add_ds_file_info(ds_file_group,
+ path, begin_ns);
+ if (ret) {
+ goto error;
+ }
+
+ goto end;
+
+error:
+ ctf_fs_ds_file_group_destroy(ds_file_group);
+ ret = -1;
+
+end:
+ if (add_group && ds_file_group) {
+ g_ptr_array_add(ctf_fs_trace->ds_file_groups, ds_file_group);
+ }
+
+ bt_put(packet_header_field);
+ bt_put(packet_context_field);
+ bt_put(stream_class);
+ return ret;
+}
+
+static
+int create_ds_file_groups(struct ctf_fs_trace *ctf_fs_trace)
{
int ret = 0;
const char *basename;
GError *error = NULL;
GDir *dir = NULL;
- struct ctf_fs_file *file = NULL;
struct ctf_fs_component *ctf_fs = ctf_fs_trace->ctf_fs;
- /* Create one output port for each stream file */
+ /* Check each file in the path directory, except specific ones */
dir = g_dir_open(ctf_fs_trace->path->str, 0, &error);
if (!dir) {
PERR("Cannot open directory `%s`: %s (code %d)\n",
}
while ((basename = g_dir_read_name(dir))) {
+ struct ctf_fs_file *file;
+
if (!strcmp(basename, CTF_FS_METADATA_FILENAME)) {
/* Ignore the metadata stream. */
PDBG("Ignoring metadata file `%s/%s`\n",
/* Skip empty stream. */
PDBG("Ignoring empty file `%s`\n", file->path->str);
ctf_fs_file_destroy(file);
- file = NULL;
continue;
}
- ret = create_one_port_for_trace(ctf_fs_trace, file->path->str);
+ ret = add_ds_file_to_ds_file_group(ctf_fs_trace,
+ file->path->str);
if (ret) {
- PERR("Cannot create output port for file `%s`\n",
+ PDBG("Cannot add stream file `%s` to stream file group\n",
file->path->str);
+ ctf_fs_file_destroy(file);
goto error;
}
ctf_fs_file_destroy(file);
- file = NULL;
}
goto end;
g_error_free(error);
}
- ctf_fs_file_destroy(file);
return ret;
}
goto error;
}
+ ctf_fs_trace->ds_file_groups = g_ptr_array_new_with_free_func(
+ (GDestroyNotify) ctf_fs_ds_file_group_destroy);
+ if (!ctf_fs_trace->ds_file_groups) {
+ goto error;
+ }
+
ret = ctf_fs_metadata_set_trace(ctf_fs_trace);
if (ret) {
goto error;
}
+ ret = create_ds_file_groups(ctf_fs_trace);
+ if (ret) {
+ goto error;
+ }
+
ret = create_cc_prio_map(ctf_fs_trace);
if (ret) {
goto error;
#include <babeltrace/babeltrace-internal.h>
#include <babeltrace/graph/component.h>
#include <babeltrace/graph/clock-class-priority-map.h>
-#include "data-stream.h"
+#include "data-stream-file.h"
BT_HIDDEN
extern bool ctf_fs_debug;
struct ctf_fs_file {
- /* Weak */
+ /* Weak, belongs to component */
struct ctf_fs_component *ctf_fs;
/* Owned by this */
int bo;
};
-struct ctf_fs_stream {
+struct ctf_fs_ds_file_info {
+ GString *path;
+ uint64_t begin_ns;
+};
+
+struct ctf_fs_ds_file {
/* Owned by this */
struct ctf_fs_file *file;
};
struct ctf_fs_component {
- /* Weak */
+ /* Weak, guaranteed to exist */
struct bt_private_component *priv_comp;
/* Array of struct ctf_fs_port_data *, owned by this */
};
struct ctf_fs_trace {
- /* Weak */
+ /* Weak, belongs to component */
struct ctf_fs_component *ctf_fs;
/* Owned by this */
/* Owned by this */
struct bt_clock_class_priority_map *cc_prio_map;
+ /* Array of struct ctf_fs_ds_file_group *, owned by this */
+ GPtrArray *ds_file_groups;
+
/* Owned by this */
GString *path;
GString *name;
};
-struct ctf_fs_port_data {
+struct ctf_fs_ds_file_group {
+ /*
+ * Array of struct ctf_fs_ds_file_info, owned by this.
+ *
+ * This is an _ordered_ array of data stream file infos which
+ * belong to this group (a single stream instance).
+ *
+ * You can call ctf_fs_ds_file_create() with one of those paths
+ * and the CTF IR stream below.
+ */
+ GPtrArray *ds_file_infos;
+
/* Owned by this */
- GString *path;
+ struct bt_ctf_stream *stream;
- /* Weak */
+ /* Weak, belongs to component */
struct ctf_fs_trace *ctf_fs_trace;
};
+struct ctf_fs_port_data {
+ /* Weak, belongs to ctf_fs_trace */
+ struct ctf_fs_ds_file_group *ds_file_group;
+};
+
+struct ctf_fs_notif_iter_data {
+ /* Weak, belongs to ctf_fs_trace */
+ struct ctf_fs_ds_file_group *ds_file_group;
+
+ /* Owned by this */
+ struct ctf_fs_ds_file *ds_file;
+
+ /* Which file the iterator is _currently_ operating on */
+ size_t ds_file_info_index;
+};
+
BT_HIDDEN
enum bt_component_status ctf_fs_init(struct bt_private_component *source,
struct bt_value *params, void *init_method_data);
projects / babeltrace.git / commitdiff
