X-Git-Url: http://git.efficios.com/?p=babeltrace.git;a=blobdiff_plain;f=formats%2Fctf%2Fctf.c;h=b02ef2a23b62949c91f0629e36dce2dc2e0cc7cb;hp=5e43d2fa867cce377f14cf9869929ef20afd79bd;hb=42dc00b7cd26b1d33e80aaeffc744eb45093a14d;hpb=e9378815b6be9213062f4097247bade3642ad479 diff --git a/formats/ctf/ctf.c b/formats/ctf/ctf.c index 5e43d2fa..b02ef2a2 100644 --- a/formats/ctf/ctf.c +++ b/formats/ctf/ctf.c @@ -87,13 +87,39 @@ struct format ctf_format = { .close_trace = ctf_close_trace, }; +static +void ctf_update_timestamp(struct ctf_stream *stream, + struct definition_integer *integer_definition) +{ + struct declaration_integer *integer_declaration = + integer_definition->declaration; + uint64_t oldval, newval, updateval; + + if (integer_declaration->len == 64) { + stream->timestamp = integer_definition->value._unsigned; + return; + } + /* keep low bits */ + oldval = stream->timestamp; + oldval &= (1ULL << integer_declaration->len) - 1; + newval = integer_definition->value._unsigned; + /* Test for overflow by comparing low bits */ + if (newval < oldval) + newval += 1ULL << integer_declaration->len; + /* updateval contains old high bits, and new low bits (sum) */ + updateval = stream->timestamp; + updateval &= ~((1ULL << integer_declaration->len) - 1); + updateval += newval; + stream->timestamp = updateval; +} + static int ctf_read_event(struct stream_pos *ppos, struct ctf_stream *stream) { struct ctf_stream_pos *pos = container_of(ppos, struct ctf_stream_pos, parent); struct ctf_stream_class *stream_class = stream->stream_class; - struct ctf_event *event_class; + struct ctf_stream_event *event; uint64_t id = 0; int ret; @@ -101,27 +127,27 @@ int ctf_read_event(struct stream_pos *ppos, struct ctf_stream *stream) return EOF; /* Read event header */ - if (stream_class->event_header) { + if (stream->stream_event_header) { struct definition_integer *integer_definition; struct definition *variant; - ret = generic_rw(ppos, &stream_class->event_header->p); + ret = generic_rw(ppos, &stream->stream_event_header->p); if (ret) goto error; /* lookup event id */ - integer_definition = lookup_integer(&stream_class->event_header->p, "id", FALSE); + integer_definition = lookup_integer(&stream->stream_event_header->p, "id", FALSE); if (integer_definition) { id = integer_definition->value._unsigned; } else { struct definition_enum *enum_definition; - enum_definition = lookup_enum(&stream_class->event_header->p, "id", FALSE); + enum_definition = lookup_enum(&stream->stream_event_header->p, "id", FALSE); if (enum_definition) { id = enum_definition->integer->value._unsigned; } } - variant = lookup_variant(&stream_class->event_header->p, "v"); + variant = lookup_variant(&stream->stream_event_header->p, "v"); if (variant) { integer_definition = lookup_integer(variant, "id", FALSE); if (integer_definition) { @@ -130,22 +156,22 @@ int ctf_read_event(struct stream_pos *ppos, struct ctf_stream *stream) } /* lookup timestamp */ - integer_definition = lookup_integer(&stream_class->event_header->p, "timestamp", FALSE); + integer_definition = lookup_integer(&stream->stream_event_header->p, "timestamp", FALSE); if (integer_definition) { - stream->timestamp = integer_definition->value._unsigned; + ctf_update_timestamp(stream, integer_definition); } else { if (variant) { integer_definition = lookup_integer(variant, "timestamp", FALSE); if (integer_definition) { - stream->timestamp = integer_definition->value._unsigned; + ctf_update_timestamp(stream, integer_definition); } } } } /* Read stream-declared event context */ - if (stream_class->event_context) { - ret = generic_rw(ppos, &stream_class->event_context->p); + if (stream->stream_event_context) { + ret = generic_rw(ppos, &stream->stream_event_context->p); if (ret) goto error; } @@ -154,22 +180,22 @@ int ctf_read_event(struct stream_pos *ppos, struct ctf_stream *stream) fprintf(stdout, "[error] Event id %" PRIu64 " is outside range.\n", id); return -EINVAL; } - event_class = g_ptr_array_index(stream_class->events_by_id, id); - if (!event_class) { + event = g_ptr_array_index(stream->events_by_id, id); + if (!event) { fprintf(stdout, "[error] Event id %" PRIu64 " is unknown.\n", id); return -EINVAL; } /* Read event-declared event context */ - if (event_class->context) { - ret = generic_rw(ppos, &event_class->context->p); + if (event->event_context) { + ret = generic_rw(ppos, &event->event_context->p); if (ret) goto error; } /* Read event payload */ - if (event_class->fields) { - ret = generic_rw(ppos, &event_class->fields->p); + if (event->event_fields) { + ret = generic_rw(ppos, &event->event_fields->p); if (ret) goto error; } @@ -185,29 +211,29 @@ static int ctf_write_event(struct stream_pos *pos, struct ctf_stream *stream) { struct ctf_stream_class *stream_class = stream->stream_class; - struct ctf_event *event_class; + struct ctf_stream_event *event; uint64_t id = 0; int ret; /* print event header */ - if (stream_class->event_header) { + if (stream->stream_event_header) { struct definition_integer *integer_definition; struct definition *variant; /* lookup event id */ - integer_definition = lookup_integer(&stream_class->event_header->p, "id", FALSE); + integer_definition = lookup_integer(&stream->stream_event_header->p, "id", FALSE); if (integer_definition) { id = integer_definition->value._unsigned; } else { struct definition_enum *enum_definition; - enum_definition = lookup_enum(&stream_class->event_header->p, "id", FALSE); + enum_definition = lookup_enum(&stream->stream_event_header->p, "id", FALSE); if (enum_definition) { id = enum_definition->integer->value._unsigned; } } - variant = lookup_variant(&stream_class->event_header->p, "v"); + variant = lookup_variant(&stream->stream_event_header->p, "v"); if (variant) { integer_definition = lookup_integer(variant, "id", FALSE); if (integer_definition) { @@ -215,14 +241,14 @@ int ctf_write_event(struct stream_pos *pos, struct ctf_stream *stream) } } - ret = generic_rw(pos, &stream_class->event_header->p); + ret = generic_rw(pos, &stream->stream_event_header->p); if (ret) goto error; } /* print stream-declared event context */ - if (stream_class->event_context) { - ret = generic_rw(pos, &stream_class->event_context->p); + if (stream->stream_event_context) { + ret = generic_rw(pos, &stream->stream_event_context->p); if (ret) goto error; } @@ -231,22 +257,22 @@ int ctf_write_event(struct stream_pos *pos, struct ctf_stream *stream) fprintf(stdout, "[error] Event id %" PRIu64 " is outside range.\n", id); return -EINVAL; } - event_class = g_ptr_array_index(stream_class->events_by_id, id); - if (!event_class) { + event = g_ptr_array_index(stream->events_by_id, id); + if (!event) { fprintf(stdout, "[error] Event id %" PRIu64 " is unknown.\n", id); return -EINVAL; } /* print event-declared event context */ - if (event_class->context) { - ret = generic_rw(pos, &event_class->context->p); + if (event->event_context) { + ret = generic_rw(pos, &event->event_context->p); if (ret) goto error; } /* Read and print event payload */ - if (event_class->fields) { - ret = generic_rw(pos, &event_class->fields->p); + if (event->event_fields) { + ret = generic_rw(pos, &event->event_fields->p); if (ret) goto error; } @@ -314,6 +340,8 @@ void ctf_fini_pos(struct ctf_stream_pos *pos) void ctf_move_pos_slow(struct ctf_stream_pos *pos, size_t offset, int whence) { + struct ctf_file_stream *file_stream = + container_of(pos, struct ctf_file_stream, pos); int ret; off_t off; struct packet_index *index; @@ -379,9 +407,15 @@ void ctf_move_pos_slow(struct ctf_stream_pos *pos, size_t offset, int whence) pos->mmap_offset = index->offset; /* Lookup context/packet size in index */ + file_stream->stream.timestamp = index->timestamp_begin; pos->content_size = index->content_size; pos->packet_size = index->packet_size; - pos->offset = index->data_offset; + if (index->data_offset < index->content_size) + pos->offset = 0; /* will read headers */ + else { + pos->offset = EOF; + return; + } } /* map new base. Need mapping length from header. */ pos->base = mmap(NULL, pos->packet_size / CHAR_BIT, pos->prot, @@ -391,6 +425,18 @@ void ctf_move_pos_slow(struct ctf_stream_pos *pos, size_t offset, int whence) strerror(errno)); assert(0); } + + /* update trace_packet_header and stream_packet_context */ + if (pos->prot != PROT_WRITE && file_stream->stream.trace_packet_header) { + /* Read packet header */ + ret = generic_rw(&pos->parent, &file_stream->stream.trace_packet_header->p); + assert(!ret); + } + if (pos->prot != PROT_WRITE && file_stream->stream.stream_packet_context) { + /* Read packet context */ + ret = generic_rw(&pos->parent, &file_stream->stream.stream_packet_context->p); + assert(!ret); + } } static @@ -462,7 +508,7 @@ int ctf_open_trace_metadata_packet_read(struct ctf_trace *td, FILE *in, return -EINVAL; } - toread = header.content_size / CHAR_BIT; + toread = (header.content_size / CHAR_BIT) - header_sizeof(header); for (;;) { readlen = fread(buf, sizeof(char), min(sizeof(buf), toread), in); @@ -600,6 +646,125 @@ end_stream: return ret; } +static +struct ctf_stream_event *create_event_definitions(struct ctf_trace *td, + struct ctf_stream *stream, + struct ctf_event *event) +{ + struct ctf_stream_event *stream_event = g_new0(struct ctf_stream_event, 1); + + if (event->context_decl) { + struct definition *definition = + event->context_decl->p.definition_new(&event->context_decl->p, + stream->parent_def_scope, 0, 0, "event.context"); + if (!definition) { + goto error; + } + stream_event->event_context = container_of(definition, + struct definition_struct, p); + stream->parent_def_scope = stream_event->event_context->p.scope; + } + if (event->fields_decl) { + struct definition *definition = + event->fields_decl->p.definition_new(&event->fields_decl->p, + stream->parent_def_scope, 0, 0, "event.fields"); + if (!definition) { + goto error; + } + stream_event->event_fields = container_of(definition, + struct definition_struct, p); + stream->parent_def_scope = stream_event->event_fields->p.scope; + } + return stream_event; + +error: + if (stream_event->event_fields) + definition_unref(&stream_event->event_fields->p); + if (stream_event->event_context) + definition_unref(&stream_event->event_context->p); + return NULL; +} + +static +int create_stream_definitions(struct ctf_trace *td, struct ctf_stream *stream) +{ + struct ctf_stream_class *stream_class; + int ret; + int i; + + if (stream->stream_definitions_created) + return 0; + + stream_class = stream->stream_class; + + if (stream_class->packet_context_decl) { + struct definition *definition = + stream_class->packet_context_decl->p.definition_new(&stream_class->packet_context_decl->p, + stream->parent_def_scope, 0, 0, "stream.packet.context"); + if (!definition) { + ret = -EINVAL; + goto error; + } + stream->stream_packet_context = container_of(definition, + struct definition_struct, p); + stream->parent_def_scope = stream->stream_packet_context->p.scope; + } + if (stream_class->event_header_decl) { + struct definition *definition = + stream_class->event_header_decl->p.definition_new(&stream_class->event_header_decl->p, + stream->parent_def_scope, 0, 0, "stream.event.header"); + if (!definition) { + ret = -EINVAL; + goto error; + } + stream->stream_event_header = + container_of(definition, struct definition_struct, p); + stream->parent_def_scope = stream->stream_event_header->p.scope; + } + if (stream_class->event_context_decl) { + struct definition *definition = + stream_class->event_context_decl->p.definition_new(&stream_class->event_context_decl->p, + stream->parent_def_scope, 0, 0, "stream.event.context"); + if (!definition) { + ret = -EINVAL; + goto error; + } + stream->stream_event_context = + container_of(definition, struct definition_struct, p); + stream->parent_def_scope = stream->stream_event_context->p.scope; + } + stream->events_by_id = g_ptr_array_new(); + g_ptr_array_set_size(stream->events_by_id, stream_class->events_by_id->len); + for (i = 0; i < stream->events_by_id->len; i++) { + struct ctf_event *event = g_ptr_array_index(stream_class->events_by_id, i); + struct ctf_stream_event *stream_event; + + if (!event) + continue; + stream_event = create_event_definitions(td, stream, event); + if (!stream_event) + goto error_event; + g_ptr_array_index(stream->events_by_id, i) = stream_event; + } + return 0; + +error_event: + for (i = 0; i < stream->events_by_id->len; i++) { + struct ctf_stream_event *stream_event = g_ptr_array_index(stream->events_by_id, i); + if (stream_event) + g_free(stream_event); + } + g_ptr_array_free(stream->events_by_id, TRUE); +error: + if (stream->stream_event_context) + definition_unref(&stream->stream_event_context->p); + if (stream->stream_event_header) + definition_unref(&stream->stream_event_header->p); + if (stream->stream_packet_context) + definition_unref(&stream->stream_packet_context->p); + return ret; +} + static int create_stream_packet_index(struct ctf_trace *td, @@ -619,6 +784,9 @@ int create_stream_packet_index(struct ctf_trace *td, if (ret < 0) return ret; + if (filestats.st_size < MAX_PACKET_HEADER_LEN / CHAR_BIT) + return -EINVAL; + for (pos->mmap_offset = 0; pos->mmap_offset < filestats.st_size; ) { uint64_t stream_id = 0; @@ -642,19 +810,21 @@ int create_stream_packet_index(struct ctf_trace *td, packet_index.offset = pos->mmap_offset; packet_index.content_size = 0; packet_index.packet_size = 0; + packet_index.timestamp_begin = 0; + packet_index.timestamp_end = 0; /* read and check header, set stream id (and check) */ - if (td->packet_header) { + if (file_stream->stream.trace_packet_header) { /* Read packet header */ - ret = generic_rw(&pos->parent, &td->packet_header->p); + ret = generic_rw(&pos->parent, &file_stream->stream.trace_packet_header->p); if (ret) return ret; - len_index = struct_declaration_lookup_field_index(td->packet_header->declaration, g_quark_from_static_string("magic")); + len_index = struct_declaration_lookup_field_index(file_stream->stream.trace_packet_header->declaration, g_quark_from_static_string("magic")); if (len_index >= 0) { struct definition_integer *defint; struct definition *field; - field = struct_definition_get_field_from_index(td->packet_header, len_index); + field = struct_definition_get_field_from_index(file_stream->stream.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); @@ -668,14 +838,14 @@ int create_stream_packet_index(struct ctf_trace *td, } /* check uuid */ - len_index = struct_declaration_lookup_field_index(td->packet_header->declaration, g_quark_from_static_string("uuid")); + len_index = struct_declaration_lookup_field_index(file_stream->stream.trace_packet_header->declaration, g_quark_from_static_string("uuid")); if (len_index >= 0) { struct definition_array *defarray; struct definition *field; uint64_t i; uint8_t uuidval[UUID_LEN]; - field = struct_definition_get_field_from_index(td->packet_header, len_index); + field = struct_definition_get_field_from_index(file_stream->stream.trace_packet_header, len_index); assert(field->declaration->id == CTF_TYPE_ARRAY); defarray = container_of(field, struct definition_array, p); assert(array_len(defarray) == UUID_LEN); @@ -698,12 +868,12 @@ int create_stream_packet_index(struct ctf_trace *td, } - len_index = struct_declaration_lookup_field_index(td->packet_header->declaration, g_quark_from_static_string("stream_id")); + len_index = struct_declaration_lookup_field_index(file_stream->stream.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(td->packet_header, len_index); + field = struct_definition_get_field_from_index(file_stream->stream.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); @@ -730,18 +900,22 @@ int create_stream_packet_index(struct ctf_trace *td, } first_packet = 0; - if (stream->packet_context) { + ret = create_stream_definitions(td, &file_stream->stream); + if (ret) + return ret; + + if (file_stream->stream.stream_packet_context) { /* Read packet context */ - ret = generic_rw(&pos->parent, &stream->packet_context->p); + ret = generic_rw(&pos->parent, &file_stream->stream.stream_packet_context->p); if (ret) return ret; /* read content size from header */ - len_index = struct_declaration_lookup_field_index(stream->packet_context->declaration, g_quark_from_static_string("content_size")); + len_index = struct_declaration_lookup_field_index(file_stream->stream.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(stream->packet_context, len_index); + field = struct_definition_get_field_from_index(file_stream->stream.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); @@ -752,12 +926,12 @@ int create_stream_packet_index(struct ctf_trace *td, } /* read packet size from header */ - len_index = struct_declaration_lookup_field_index(stream->packet_context->declaration, g_quark_from_static_string("packet_size")); + len_index = struct_declaration_lookup_field_index(file_stream->stream.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(stream->packet_context, len_index); + field = struct_definition_get_field_from_index(file_stream->stream.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); @@ -766,6 +940,32 @@ int create_stream_packet_index(struct ctf_trace *td, /* 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->stream.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->stream.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; + } + + /* read timestamp end from header */ + len_index = struct_declaration_lookup_field_index(file_stream->stream.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->stream.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; + } } else { /* Use file size for packet size */ packet_index.content_size = filestats.st_size * CHAR_BIT; @@ -801,6 +1001,30 @@ int create_stream_packet_index(struct ctf_trace *td, return 0; } +static +int create_trace_definitions(struct ctf_trace *td, struct ctf_stream *stream) +{ + int ret; + + if (td->packet_header_decl) { + struct definition *definition = + td->packet_header_decl->p.definition_new(&td->packet_header_decl->p, + stream->parent_def_scope, 0, 0, "trace.packet.header"); + if (!definition) { + ret = -EINVAL; + goto error; + } + stream->trace_packet_header = + container_of(definition, struct definition_struct, p); + stream->parent_def_scope = stream->trace_packet_header->p.scope; + } + + return 0; + +error: + return ret; +} + /* * Note: many file streams can inherit from the same stream class * description (metadata). @@ -816,6 +1040,9 @@ int ctf_open_file_stream_read(struct ctf_trace *td, const char *path, int flags) goto error; file_stream = g_new0(struct ctf_file_stream, 1); ctf_init_pos(&file_stream->pos, ret, flags); + ret = create_trace_definitions(td, &file_stream->stream); + if (ret) + goto error_def; ret = create_stream_packet_index(td, file_stream); if (ret) goto error_index; @@ -824,6 +1051,9 @@ int ctf_open_file_stream_read(struct ctf_trace *td, const char *path, int flags) return 0; error_index: + if (file_stream->stream.trace_packet_header) + definition_unref(&file_stream->stream.trace_packet_header->p); +error_def: ctf_fini_pos(&file_stream->pos); close(file_stream->pos.fd); g_free(file_stream);