extern int yydebug;
static
-struct trace_descriptor *ctf_open_trace(const char *path, int flags,
+struct trace_descriptor *ctf_open_trace(const char *collection_path, const char *path, int flags,
void (*move_pos_slow)(struct ctf_stream_pos *pos, size_t offset,
int whence), FILE *metadata_fp);
static
+struct trace_descriptor *ctf_open_mmap_trace(
+ struct mmap_stream_list *mmap_list,
+ void (*move_pos_slow)(struct ctf_stream_pos *pos, size_t offset, int whence),
+ FILE *metadata_fp);
+
+static
void ctf_close_trace(struct trace_descriptor *descriptor);
static
static
struct format ctf_format = {
.open_trace = ctf_open_trace,
+ .open_mmap_trace = ctf_open_mmap_trace,
.close_trace = ctf_close_trace,
};
}
if (unlikely(id >= stream_class->events_by_id->len)) {
- fprintf(stdout, "[error] Event id %" PRIu64 " is outside range.\n", id);
+ fprintf(stderr, "[error] Event id %" PRIu64 " is outside range.\n", id);
return -EINVAL;
}
event = g_ptr_array_index(stream->events_by_id, id);
if (unlikely(!event)) {
- fprintf(stdout, "[error] Event id %" PRIu64 " is unknown.\n", id);
+ fprintf(stderr, "[error] Event id %" PRIu64 " is unknown.\n", id);
return -EINVAL;
}
return 0;
error:
- fprintf(stdout, "[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 stream. Either the trace data stream is corrupted or metadata description does not match data layout.\n");
return ret;
}
}
if (unlikely(id >= stream_class->events_by_id->len)) {
- fprintf(stdout, "[error] Event id %" PRIu64 " is outside range.\n", id);
+ fprintf(stderr, "[error] Event id %" PRIu64 " is outside range.\n", id);
return -EINVAL;
}
event = g_ptr_array_index(stream->events_by_id, id);
if (unlikely(!event)) {
- fprintf(stdout, "[error] Event id %" PRIu64 " is unknown.\n", id);
+ fprintf(stderr, "[error] Event id %" PRIu64 " is unknown.\n", id);
return -EINVAL;
}
return 0;
error:
- fprintf(stdout, "[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 stream. Either the trace data stream is corrupted or metadata description does not match data layout.\n");
return ret;
}
/* unmap old base */
ret = munmap(pos->base, pos->packet_size / CHAR_BIT);
if (ret) {
- fprintf(stdout, "[error] Unable to unmap old base: %s.\n",
+ fprintf(stderr, "[error] Unable to unmap old base: %s.\n",
strerror(errno));
assert(0);
}
/* unmap old base */
ret = munmap(pos->base, pos->packet_size / CHAR_BIT);
if (ret) {
- fprintf(stdout, "[error] Unable to unmap old base: %s.\n",
+ fprintf(stderr, "[error] Unable to unmap old base: %s.\n",
strerror(errno));
assert(0);
}
read_next_packet:
switch (whence) {
case SEEK_CUR:
+ {
+ uint32_t events_discarded_diff;
+
+ /* Print lost event count */
+ index = &g_array_index(pos->packet_index,
+ struct packet_index, pos->cur_index);
+ events_discarded_diff = index->events_discarded;
+ if (pos->cur_index > 0) {
+ index = &g_array_index(pos->packet_index,
+ struct packet_index,
+ pos->cur_index - 1);
+ events_discarded_diff -= index->events_discarded;
+ }
+ if (events_discarded_diff != 0) {
+ fflush(stdout);
+ fprintf(stderr, "[warning] %d events discarded by tracer. You should try using larger buffers.\n",
+ events_discarded_diff);
+ fflush(stderr);
+ }
if (pos->offset == EOF)
return;
/* The reader will expect us to skip padding */
assert(pos->offset + offset == pos->content_size);
++pos->cur_index;
break;
+ }
case SEEK_SET:
assert(offset == 0); /* only seek supported for now */
pos->cur_index = 0;
pos->base = mmap(NULL, pos->packet_size / CHAR_BIT, pos->prot,
pos->flags, pos->fd, pos->mmap_offset);
if (pos->base == MAP_FAILED) {
- fprintf(stdout, "[error] mmap error %s.\n",
+ fprintf(stderr, "[error] mmap error %s.\n",
strerror(errno));
assert(0);
}
/* eventually return an error instead of warning */
warning:
- fprintf(stdout, "[warning] Unsupported CTF specification version %u.%u. Trying anyway.\n",
+ fprintf(stderr, "[warning] Unsupported CTF specification version %u.%u. Trying anyway.\n",
major, minor);
return 0;
}
header.packet_size = GUINT32_SWAP_LE_BE(header.packet_size);
}
if (header.checksum)
- fprintf(stdout, "[warning] checksum verification not supported yet.\n");
+ fprintf(stderr, "[warning] checksum verification not supported yet.\n");
if (header.compression_scheme) {
- fprintf(stdout, "[error] compression (%u) not supported yet.\n",
+ fprintf(stderr, "[error] compression (%u) not supported yet.\n",
header.compression_scheme);
return -EINVAL;
}
if (header.encryption_scheme) {
- fprintf(stdout, "[error] encryption (%u) not supported yet.\n",
+ fprintf(stderr, "[error] encryption (%u) not supported yet.\n",
header.encryption_scheme);
return -EINVAL;
}
if (header.checksum_scheme) {
- fprintf(stdout, "[error] checksum (%u) not supported yet.\n",
+ fprintf(stderr, "[error] checksum (%u) not supported yet.\n",
header.checksum_scheme);
return -EINVAL;
}
}
if (babeltrace_debug) {
buf[readlen] = '\0';
- fprintf(stdout, "[debug] metadata packet read: %s\n",
+ fprintf(stderr, "[debug] metadata packet read: %s\n",
buf);
}
toread = (header.packet_size - header.content_size) / CHAR_BIT;
ret = fseek(in, toread, SEEK_CUR);
if (ret < 0) {
- fprintf(stdout, "[warning] Missing padding at end of file\n");
+ fprintf(stderr, "[warning] Missing padding at end of file\n");
ret = 0;
}
return ret;
* \0). This is the allocated size, not the actual string size.
*/
out = open_memstream(buf, &size);
- if (out == NULL)
+ if (out == NULL) {
+ perror("Metadata open_memstream");
return -errno;
-
+ }
for (;;) {
ret = ctf_open_trace_metadata_packet_read(td, in, out);
if (ret) {
fclose(in);
/* open for reading */
*fp = fmemopen(*buf, strlen(*buf), "rb");
+ if (!*fp) {
+ perror("Metadata fmemopen");
+ return -errno;
+ }
return 0;
}
td->metadata = &metadata_stream->parent;
metadata_stream->pos.fd = openat(td->dirfd, "metadata", O_RDONLY);
if (metadata_stream->pos.fd < 0) {
- fprintf(stdout, "Unable to open metadata.\n");
+ fprintf(stderr, "Unable to open metadata.\n");
return metadata_stream->pos.fd;
}
fp = fdopen(metadata_stream->pos.fd, "r");
if (!fp) {
- fprintf(stdout, "[error] Unable to open metadata stream.\n");
+ fprintf(stderr, "[error] Unable to open metadata stream.\n");
+ perror("Metadata stream open");
ret = -errno;
goto end_stream;
}
/* Check text-only metadata header and version */
nr_items = fscanf(fp, "/* CTF %u.%u", &major, &minor);
if (nr_items < 2)
- fprintf(stdout, "[warning] Ill-shapen or missing \"/* CTF x.y\" header for text-only metadata.\n");
+ 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;
scanner = ctf_scanner_alloc(fp);
if (!scanner) {
- fprintf(stdout, "[error] Error allocating scanner\n");
+ fprintf(stderr, "[error] Error allocating scanner\n");
ret = -ENOMEM;
goto end_scanner_alloc;
}
ret = ctf_scanner_append_ast(scanner);
if (ret) {
- fprintf(stdout, "[error] Error creating AST\n");
+ fprintf(stderr, "[error] Error creating AST\n");
goto end;
}
if (babeltrace_debug) {
- ret = ctf_visitor_print_xml(stdout, 0, &scanner->ast->root);
+ ret = ctf_visitor_print_xml(stderr, 0, &scanner->ast->root);
if (ret) {
- fprintf(stdout, "[error] Error visiting AST for XML output\n");
+ fprintf(stderr, "[error] Error visiting AST for XML output\n");
goto end;
}
}
- ret = ctf_visitor_semantic_check(stdout, 0, &scanner->ast->root);
+ ret = ctf_visitor_semantic_check(stderr, 0, &scanner->ast->root);
if (ret) {
- fprintf(stdout, "[error] Error in CTF semantic validation %d\n", ret);
+ fprintf(stderr, "[error] Error in CTF semantic validation %d\n", ret);
goto end;
}
- ret = ctf_visitor_construct_metadata(stdout, 0, &scanner->ast->root,
+ ret = ctf_visitor_construct_metadata(stderr, 0, &scanner->ast->root,
td, td->byte_order);
if (ret) {
- fprintf(stdout, "[error] Error in CTF metadata constructor %d\n", ret);
+ fprintf(stderr, "[error] Error in CTF metadata constructor %d\n", ret);
goto end;
}
end:
/* unmap old base */
ret = munmap(pos->base, pos->packet_size / CHAR_BIT);
if (ret) {
- fprintf(stdout, "[error] Unable to unmap old base: %s.\n",
+ fprintf(stderr, "[error] Unable to unmap old base: %s.\n",
strerror(errno));
return ret;
}
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) {
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_integer *defint;
struct definition *field;
+ uint64_t magic;
field = struct_definition_get_field_from_index(file_stream->parent.trace_packet_header, len_index);
- assert(field->declaration->id == CTF_TYPE_INTEGER);
- defint = container_of(field, struct definition_integer, p);
- assert(defint->declaration->signedness == FALSE);
- if (defint->value._unsigned != CTF_MAGIC) {
- fprintf(stdout, "[error] Invalid magic number 0x%" PRIX64 " at packet %u (file offset %zd).\n",
- defint->value._unsigned,
+ 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_index->len,
(ssize_t) pos->mmap_offset);
return -EINVAL;
assert(field->declaration->id == CTF_TYPE_ARRAY);
defarray = container_of(field, struct definition_array, p);
assert(array_len(defarray) == UUID_LEN);
- assert(defarray->declaration->elem->id == CTF_TYPE_INTEGER);
for (i = 0; i < UUID_LEN; i++) {
struct definition *elem;
- struct definition_integer *defint;
elem = array_index(defarray, i);
- assert(elem);
- defint = container_of(elem, struct definition_integer, p);
- uuidval[i] = defint->value._unsigned;
+ uuidval[i] = get_unsigned_int(elem);
}
ret = uuid_compare(td->uuid, uuidval);
if (ret) {
- fprintf(stdout, "[error] Unique Universal Identifiers do not match.\n");
+ fprintf(stderr, "[error] Unique Universal Identifiers do not match.\n");
return -EINVAL;
}
}
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_integer *defint;
struct definition *field;
field = struct_definition_get_field_from_index(file_stream->parent.trace_packet_header, len_index);
- assert(field->declaration->id == CTF_TYPE_INTEGER);
- defint = container_of(field, struct definition_integer, p);
- assert(defint->declaration->signedness == FALSE);
- stream_id = defint->value._unsigned;
+ stream_id = get_unsigned_int(field);
}
}
if (!first_packet && file_stream->parent.stream_id != stream_id) {
- fprintf(stdout, "[error] Stream ID is changing within a stream.\n");
+ fprintf(stderr, "[error] Stream ID is changing within a stream.\n");
return -EINVAL;
}
if (first_packet) {
file_stream->parent.stream_id = stream_id;
if (stream_id >= td->streams->len) {
- fprintf(stdout, "[error] Stream %" PRIu64 " is not declared in metadata.\n", stream_id);
+ 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(stdout, "[error] Stream %" PRIu64 " is not declared in metadata.\n", stream_id);
+ fprintf(stderr, "[error] Stream %" PRIu64 " is not declared in metadata.\n", stream_id);
return -EINVAL;
}
file_stream->parent.stream_class = stream;
/* 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_integer *defint;
struct definition *field;
field = struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index);
- assert(field->declaration->id == CTF_TYPE_INTEGER);
- defint = container_of(field, struct definition_integer, p);
- assert(defint->declaration->signedness == FALSE);
- packet_index.content_size = defint->value._unsigned;
+ packet_index.content_size = get_unsigned_int(field);
} else {
/* Use file size for packet size */
packet_index.content_size = filestats.st_size * CHAR_BIT;
/* 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_integer *defint;
struct definition *field;
field = struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index);
- assert(field->declaration->id == CTF_TYPE_INTEGER);
- defint = container_of(field, struct definition_integer, p);
- assert(defint->declaration->signedness == FALSE);
- packet_index.packet_size = defint->value._unsigned;
+ 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;
/* 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_integer *defint;
struct definition *field;
field = struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index);
- assert(field->declaration->id == CTF_TYPE_INTEGER);
- defint = container_of(field, struct definition_integer, p);
- assert(defint->declaration->signedness == FALSE);
- packet_index.timestamp_begin = defint->value._unsigned;
+ packet_index.timestamp_begin = get_unsigned_int(field);
}
/* 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_integer *defint;
struct definition *field;
field = struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index);
- assert(field->declaration->id == CTF_TYPE_INTEGER);
- defint = container_of(field, struct definition_integer, p);
- assert(defint->declaration->signedness == FALSE);
- packet_index.timestamp_end = defint->value._unsigned;
+ packet_index.timestamp_end = get_unsigned_int(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 = struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index);
+ packet_index.events_discarded = get_unsigned_int(field);
}
} else {
/* Use file size for packet size */
/* Validate content size and packet size values */
if (packet_index.content_size > packet_index.packet_size) {
- fprintf(stdout, "[error] Content size (%zu bits) is larger than packet size (%zu bits).\n",
+ fprintf(stderr, "[error] Content size (%zu bits) is larger than packet size (%zu bits).\n",
packet_index.content_size, packet_index.packet_size);
return -EINVAL;
}
if (packet_index.packet_size > (filestats.st_size - packet_index.offset) * CHAR_BIT) {
- fprintf(stdout, "[error] Packet size (%zu bits) is larger than remaining file size (%zu bits).\n",
+ fprintf(stderr, "[error] Packet size (%zu bits) is larger than remaining file size (%zu bits).\n",
packet_index.content_size, (size_t) (filestats.st_size - packet_index.offset) * CHAR_BIT);
return -EINVAL;
}
struct ctf_file_stream *file_stream;
ret = openat(td->dirfd, path, flags);
- if (ret < 0)
+ if (ret < 0) {
+ perror("File stream openat()");
goto error;
+ }
file_stream = g_new0(struct ctf_file_stream, 1);
if (move_pos_slow) {
return ret;
}
+static void
+init_domain_name(struct ctf_trace *td)
+{
+ char *start, *end;
+
+ start = td->path + strlen(td->collection_path);
+ while (start[0] == '/')
+ start++; /* skip / */
+ end = strchr(start, '/');
+ if (!end)
+ end = start + strlen(start);
+ memcpy(td->domain, start, end - start);
+ td->domain[end - start] = '\0';
+}
+
+static void
+init_proc_name(struct ctf_trace *td)
+{
+ char buf[PATH_MAX];
+ char *start, *end;
+
+ if (td->domain[0] == '\0')
+ return;
+ memcpy(buf, td->path, PATH_MAX);
+ start = buf + strlen(td->collection_path);
+ while (start[0] == '/')
+ start++; /* skip / */
+ start = strchr(start, '/'); /* get begin of domain content */
+ if (!start)
+ return;
+ while (start[0] == '/')
+ start++; /* skip / */
+ /* find last -, skips time */
+ end = strrchr(start, '-');
+ if (!end)
+ return;
+ *end = '\0';
+ /* find previous -, skips date */
+ end = strrchr(start, '-');
+ if (!end)
+ return;
+ *end = '\0';
+ /* find previous -, skips pid */
+ end = strrchr(start, '-');
+ if (!end)
+ return;
+ *end = '\0';
+
+ memcpy(td->procname, start, end - start);
+ td->procname[end - start] = '\0';
+}
+
+static void
+init_vpid(struct ctf_trace *td)
+{
+ char buf[PATH_MAX];
+ char *start, *end;
+
+ if (td->domain[0] == '\0')
+ return;
+ memcpy(buf, td->path, PATH_MAX);
+ start = buf + strlen(td->collection_path);
+ while (start[0] == '/')
+ start++; /* skip / */
+ start = strchr(start, '/'); /* get begin of domain content */
+ if (!start)
+ return;
+ while (start[0] == '/')
+ start++; /* skip / */
+ /* find last -, skips time */
+ end = strrchr(start, '-');
+ if (!end)
+ return;
+ *end = '\0';
+ /* find previous -, skips date */
+ end = strrchr(start, '-');
+ if (!end)
+ return;
+ *end = '\0';
+ /* find previous -, skips pid */
+ start = strrchr(start, '-');
+ if (!start)
+ return;
+ start++; /* skip - */
+
+ memcpy(td->vpid, start, end - start);
+ td->vpid[end - start] = '\0';
+}
+
static
-int ctf_open_trace_read(struct ctf_trace *td, const char *path, int flags,
+int ctf_open_trace_read(struct ctf_trace *td, const char *collection_path,
+ const char *path, int flags,
void (*move_pos_slow)(struct ctf_stream_pos *pos, size_t offset,
int whence), FILE *metadata_fp)
{
struct dirent *dirent;
struct dirent *diriter;
size_t dirent_len;
+ char *respath, *rescolpath;
td->flags = flags;
/* Open trace directory */
td->dir = opendir(path);
if (!td->dir) {
- fprintf(stdout, "[error] Unable to open trace directory.\n");
+ fprintf(stderr, "[error] Unable to open trace directory.\n");
ret = -ENOENT;
goto error;
}
td->dirfd = open(path, 0);
if (td->dirfd < 0) {
- fprintf(stdout, "[error] Unable to open trace directory file descriptor.\n");
- ret = -ENOENT;
+ fprintf(stderr, "[error] Unable to open trace directory file descriptor.\n");
+ perror("Trace directory open");
+ ret = -errno;
goto error_dirfd;
}
+ rescolpath = realpath(collection_path, td->collection_path);
+ if (!rescolpath) {
+ fprintf(stderr, "[error] collection path resolution failure\n");
+ return -EINVAL;
+ }
+ respath = realpath(path, td->path);
+ if (!respath) {
+ fprintf(stderr, "[error] path resolution failure\n");
+ return -EINVAL;
+ }
+ init_domain_name(td);
+ init_proc_name(td);
+ init_vpid(td);
/*
* Keep the metadata file separate.
for (;;) {
ret = readdir_r(td->dir, dirent, &diriter);
if (ret) {
- fprintf(stdout, "[error] Readdir error.\n");
+ fprintf(stderr, "[error] Readdir error.\n");
goto readdir_error;
}
if (!diriter)
continue;
ret = ctf_open_file_stream_read(td, diriter->d_name, flags, move_pos_slow);
if (ret) {
- fprintf(stdout, "[error] Open file stream error.\n");
+ fprintf(stderr, "[error] Open file stream error.\n");
goto readdir_error;
}
}
}
static
-struct trace_descriptor *ctf_open_trace(const char *path, int flags,
+struct trace_descriptor *ctf_open_trace(const char *collection_path, const char *path, int flags,
void (*move_pos_slow)(struct ctf_stream_pos *pos, size_t offset,
int whence), FILE *metadata_fp)
{
switch (flags & O_ACCMODE) {
case O_RDONLY:
if (!path) {
- fprintf(stdout, "[error] Path missing for input CTF trace.\n");
+ fprintf(stderr, "[error] Path missing for input CTF trace.\n");
goto error;
}
- ret = ctf_open_trace_read(td, path, flags, move_pos_slow, metadata_fp);
+ ret = ctf_open_trace_read(td, collection_path, path, flags, move_pos_slow, metadata_fp);
if (ret)
goto error;
break;
case O_RDWR:
- fprintf(stdout, "[error] Opening CTF traces for output is not supported yet.\n");
+ fprintf(stderr, "[error] Opening CTF traces for output is not supported yet.\n");
goto error;
default:
- fprintf(stdout, "[error] Incorrect open flags.\n");
+ fprintf(stderr, "[error] Incorrect open flags.\n");
goto error;
}
return NULL;
}
+
+void ctf_init_mmap_pos(struct ctf_stream_pos *pos,
+ struct mmap_stream *mmap_info)
+{
+ pos->mmap_offset = 0;
+ pos->packet_size = 0;
+ pos->content_size = 0;
+ pos->content_size_loc = NULL;
+ pos->fd = mmap_info->fd;
+ pos->base = 0;
+ pos->offset = 0;
+ pos->dummy = false;
+ pos->cur_index = 0;
+ pos->packet_index = NULL;
+ pos->prot = PROT_READ;
+ pos->flags = MAP_PRIVATE;
+ pos->parent.rw_table = read_dispatch_table;
+ pos->parent.event_cb = ctf_read_event;
+}
+
+static
+int prepare_mmap_stream_definition(struct ctf_trace *td,
+ struct ctf_file_stream *file_stream)
+{
+ struct ctf_stream_class *stream;
+ uint64_t stream_id = 0;
+ int ret;
+
+ 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);
+ ret = -EINVAL;
+ goto end;
+ }
+ 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 end;
+ }
+ file_stream->parent.stream_class = stream;
+ ret = create_stream_definitions(td, &file_stream->parent);
+end:
+ return ret;
+}
+
+static
+int ctf_open_mmap_stream_read(struct ctf_trace *td,
+ struct mmap_stream *mmap_info,
+ void (*move_pos_slow)(struct ctf_stream_pos *pos, size_t offset,
+ int whence))
+{
+ int ret;
+ struct ctf_file_stream *file_stream;
+
+ file_stream = g_new0(struct ctf_file_stream, 1);
+ ctf_init_mmap_pos(&file_stream->pos, mmap_info);
+
+ file_stream->pos.move_pos_slow = move_pos_slow;
+
+ ret = create_trace_definitions(td, &file_stream->parent);
+ if (ret) {
+ goto error_def;
+ }
+
+ ret = prepare_mmap_stream_definition(td, file_stream);
+ if (ret)
+ goto error_index;
+
+ /* 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->parent.trace_packet_header)
+ definition_unref(&file_stream->parent.trace_packet_header->p);
+error_def:
+ g_free(file_stream);
+ return ret;
+}
+
+int ctf_open_mmap_trace_read(struct ctf_trace *td,
+ struct mmap_stream_list *mmap_list,
+ void (*move_pos_slow)(struct ctf_stream_pos *pos, size_t offset,
+ int whence),
+ FILE *metadata_fp)
+{
+ int ret;
+ struct mmap_stream *mmap_info;
+
+ ret = ctf_open_trace_metadata_read(td, ctf_move_pos_slow, metadata_fp);
+ if (ret) {
+ goto error;
+ }
+
+ /*
+ * for each stream, try to open, check magic number, and get the
+ * stream ID to add to the right location in the stream array.
+ */
+ cds_list_for_each_entry(mmap_info, &mmap_list->head, list) {
+ ret = ctf_open_mmap_stream_read(td, mmap_info, move_pos_slow);
+ if (ret) {
+ fprintf(stderr, "[error] Open file mmap stream error.\n");
+ goto error;
+ }
+ }
+
+ return 0;
+
+error:
+ return ret;
+}
+
+static
+struct trace_descriptor *ctf_open_mmap_trace(
+ struct mmap_stream_list *mmap_list,
+ void (*move_pos_slow)(struct ctf_stream_pos *pos, size_t offset, int whence),
+ FILE *metadata_fp)
+{
+ struct ctf_trace *td;
+ int ret;
+
+ if (!metadata_fp) {
+ fprintf(stderr, "[error] No metadata file pointer associated, "
+ "required for mmap parsing\n");
+ goto error;
+ }
+ if (!move_pos_slow) {
+ fprintf(stderr, "[error] move_pos_slow function undefined.\n");
+ goto error;
+ }
+ td = g_new0(struct ctf_trace, 1);
+ ret = ctf_open_mmap_trace_read(td, mmap_list, move_pos_slow, metadata_fp);
+ if (ret)
+ goto error_free;
+
+ return &td->parent;
+
+error_free:
+ g_free(td);
+error:
+ return NULL;
+}
+
static
void ctf_close_file_stream(struct ctf_file_stream *file_stream)
{
projects / babeltrace.git / blobdiff