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,
};
uint64_t id = 0;
int ret;
+ /* We need to check for EOF here for empty files. */
+ if (unlikely(pos->offset == EOF))
+ return EOF;
+
ctf_pos_get_event(pos);
+ /*
+ * This is the EOF check after we've advanced the position in
+ * ctf_pos_get_event.
+ */
if (unlikely(pos->offset == EOF))
return EOF;
assert(pos->offset < pos->content_size);
/* empty packet */
pos->offset = index->data_offset;
offset = 0;
+ whence = SEEK_CUR;
goto read_next_packet;
} else {
pos->offset = EOF;
* \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;
}
fp = fdopen(metadata_stream->pos.fd, "r");
if (!fp) {
fprintf(stdout, "[error] Unable to open metadata stream.\n");
+ perror("Metadata stream open");
ret = -errno;
goto end_stream;
}
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) {
+ magic = get_unsigned_int(field);
+ if (magic != CTF_MAGIC) {
fprintf(stdout, "[error] Invalid magic number 0x%" PRIX64 " at packet %u (file offset %zd).\n",
- defint->value._unsigned,
+ 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) {
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);
}
}
/* 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);
}
} else {
/* Use file size for packet size */
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)
{
td->dirfd = open(path, 0);
if (td->dirfd < 0) {
fprintf(stdout, "[error] Unable to open trace directory file descriptor.\n");
- ret = -ENOENT;
+ perror("Trace directory open");
+ ret = -errno;
goto error_dirfd;
}
+ strncpy(td->collection_path, collection_path, PATH_MAX);
+ td->collection_path[PATH_MAX - 1] = '\0';
+ strncpy(td->path, path, PATH_MAX);
+ td->path[PATH_MAX - 1] = '\0';
+ init_domain_name(td);
+ init_proc_name(td);
+ init_vpid(td);
/*
* Keep the metadata file separate.
}
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)
{
fprintf(stdout, "[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;
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(stdout, "[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(stdout, "[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(stdout, "[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