/* Current content size (bits) (-1 if unknown) */
int64_t cur_content_size;
+
+ /* bt_ctf_clock to uint64_t. */
+ GHashTable *clock_states;
};
static
packet_header_type = bt_ctf_trace_get_packet_header_type(
notit->meta.trace);
if (!packet_header_type) {
- PERR("Failed to retrieve trace's packet header type\n");
- ret = BT_CTF_NOTIF_ITER_STATUS_ERROR;
+ notit->state = STATE_AFTER_TRACE_PACKET_HEADER;
goto end;
}
}
static inline
-enum bt_ctf_notif_iter_status set_current_stream_class(struct bt_ctf_notif_iter *notit)
+enum bt_ctf_notif_iter_status set_current_stream_class(
+ struct bt_ctf_notif_iter *notit)
{
enum bt_ctf_notif_iter_status status = BT_CTF_NOTIF_ITER_STATUS_OK;
struct bt_ctf_field_type *packet_header_type;
}
BT_PUT(notit->meta.stream_class);
-
notit->meta.stream_class = bt_ctf_trace_get_stream_class_by_id(
notit->meta.trace, stream_id);
if (!notit->meta.stream_class) {
packet_context_type = bt_ctf_stream_class_get_packet_context_type(
notit->meta.stream_class);
if (!packet_context_type) {
- PERR("Failed to retrieve stream class's packet context\n");
- status = BT_CTF_NOTIF_ITER_STATUS_ERROR;
+ notit->state = STATE_AFTER_STREAM_PACKET_CONTEXT;
goto end;
}
event_header_type = bt_ctf_stream_class_get_event_header_type(
notit->meta.stream_class);
if (!event_header_type) {
- PERR("Failed to retrieve stream class's event header type\n");
- status = BT_CTF_NOTIF_ITER_STATUS_ERROR;
+ notit->state = STATE_AFTER_STREAM_EVENT_HEADER;
goto end;
}
{
enum bt_ctf_notif_iter_status status;
- status = set_current_packet_content_sizes(notit);
- if (status != BT_CTF_NOTIF_ITER_STATUS_OK) {
- PERR("Failed to set current packet and content sizes\n");
- goto end;
- }
-
status = set_current_event_class(notit);
if (status != BT_CTF_NOTIF_ITER_STATUS_OK) {
PERR("Failed to set current event class\n");
stream_event_context_type = bt_ctf_stream_class_get_event_context_type(
notit->meta.stream_class);
if (!stream_event_context_type) {
- PERR("Failed to retrieve stream class's event context type\n");
- status = BT_CTF_NOTIF_ITER_STATUS_ERROR;
+ notit->state = STATE_DSCOPE_EVENT_CONTEXT_BEGIN;
goto end;
}
event_context_type = bt_ctf_event_class_get_context_type(
notit->meta.event_class);
if (!event_context_type) {
- PERR("Failed to retrieve event class's context type\n");
- status = BT_CTF_NOTIF_ITER_STATUS_ERROR;
+ notit->state = STATE_DSCOPE_EVENT_PAYLOAD_BEGIN;
goto end;
}
-
status = read_dscope_begin_state(notit, event_context_type,
STATE_DSCOPE_EVENT_PAYLOAD_BEGIN,
STATE_DSCOPE_EVENT_CONTEXT_CONTINUE,
event_payload_type = bt_ctf_event_class_get_payload_type(
notit->meta.event_class);
if (!event_payload_type) {
- PERR("Failed to retrieve event class's payload type\n");
- status = BT_CTF_NOTIF_ITER_STATUS_ERROR;
+ notit->state = STATE_EMIT_NOTIF_EVENT;
goto end;
}
return next_field;
}
+static
+void update_clock_state(uint64_t *state,
+ struct bt_ctf_field *value_field)
+{
+ struct bt_ctf_field_type *value_type = NULL;
+ uint64_t requested_new_value;
+ uint64_t requested_new_value_mask;
+ uint64_t cur_value_masked;
+ int requested_new_value_size;
+ int ret;
+
+ value_type = bt_ctf_field_get_type(value_field);
+ assert(value_type);
+
+ requested_new_value_size =
+ bt_ctf_field_type_integer_get_size(value_type);
+ assert(requested_new_value_size > 0);
+
+ ret = bt_ctf_field_unsigned_integer_get_value(value_field,
+ &requested_new_value);
+ assert(!ret);
+
+ /*
+ * Special case for a 64-bit new value, which is the limit
+ * of a clock value as of this version: overwrite the
+ * current value directly.
+ */
+ if (requested_new_value_size == 64) {
+ *state = requested_new_value;
+ goto end;
+ }
+
+ requested_new_value_mask = (1ULL << requested_new_value_size) - 1;
+ cur_value_masked = *state & requested_new_value_mask;
+
+ if (requested_new_value < cur_value_masked) {
+ /*
+ * It looks like a wrap happened on the number of bits
+ * of the requested new value. Assume that the clock
+ * value wrapped only one time.
+ */
+ *state += requested_new_value_mask + 1;
+ }
+
+ /* Clear the low bits of the current clock value. */
+ *state &= ~requested_new_value_mask;
+
+ /* Set the low bits of the current clock value. */
+ *state |= requested_new_value;
+end:
+ bt_put(value_type);
+}
+
+static
+enum bt_ctf_btr_status update_clock(struct bt_ctf_notif_iter *notit,
+ struct bt_ctf_field_type *int_field_type,
+ struct bt_ctf_field *int_field)
+{
+ gboolean clock_found;
+ uint64_t *clock_state;
+ enum bt_ctf_btr_status ret = BT_CTF_BTR_STATUS_OK;
+ struct bt_ctf_clock *clock = bt_ctf_field_type_integer_get_mapped_clock(
+ int_field_type);
+
+ if (likely(!clock)) {
+ goto end_no_clock;
+ }
+
+ clock_found = g_hash_table_lookup_extended(notit->clock_states,
+ clock, NULL, (gpointer) &clock_state);
+ if (unlikely(!clock_found)) {
+ const char *clock_name = bt_ctf_clock_get_name(clock);
+
+ PERR("Unknown clock %s mapped to integer encountered in stream\n",
+ clock_name ? : "NULL");
+ ret = BT_CTF_BTR_STATUS_ERROR;
+ goto end;
+ }
+
+ if (unlikely(!clock_state)) {
+ clock_state = g_new0(uint64_t, 1);
+ if (!clock_state) {
+ ret = BT_CTF_BTR_STATUS_ENOMEM;
+ goto end;
+ }
+ g_hash_table_insert(notit->clock_states, bt_get(clock),
+ clock_state);
+ }
+
+ /* Update the clock's state. */
+ update_clock_state(clock_state, int_field);
+end:
+ bt_put(clock);
+end_no_clock:
+ return ret;
+}
+
static
enum bt_ctf_btr_status btr_signed_int_cb(int64_t value,
struct bt_ctf_field_type *type, void *data)
if (!field) {
PERR("Failed to get next field (signed int)\n");
status = BT_CTF_BTR_STATUS_ERROR;
- goto end;
+ goto end_no_put;
}
switch(bt_ctf_field_type_get_type_id(type)) {
case BT_CTF_TYPE_ID_INTEGER:
/* Integer field is created field */
BT_MOVE(int_field, field);
+ bt_get(type);
break;
case BT_CTF_TYPE_ID_ENUM:
int_field = bt_ctf_field_enumeration_get_container(field);
+ type = bt_ctf_field_get_type(int_field);
break;
default:
+ assert(0);
+ type = NULL;
break;
}
ret = bt_ctf_field_signed_integer_set_value(int_field, value);
assert(!ret);
stack_top(notit->stack)->index++;
-
+ status = update_clock(notit, type, int_field);
end:
BT_PUT(field);
BT_PUT(int_field);
-
+ BT_PUT(type);
+end_no_put:
return status;
}
if (!field) {
PERR("Failed to get next field (unsigned int)\n");
status = BT_CTF_BTR_STATUS_ERROR;
- goto end;
+ goto end_no_put;
}
switch(bt_ctf_field_type_get_type_id(type)) {
case BT_CTF_TYPE_ID_INTEGER:
/* Integer field is created field */
BT_MOVE(int_field, field);
+ bt_get(type);
break;
case BT_CTF_TYPE_ID_ENUM:
int_field = bt_ctf_field_enumeration_get_container(field);
+ type = bt_ctf_field_get_type(int_field);
break;
default:
+ assert(0);
+ type = NULL;
break;
}
ret = bt_ctf_field_unsigned_integer_set_value(int_field, value);
assert(!ret);
stack_top(notit->stack)->index++;
-
+ status = update_clock(notit, type, int_field);
end:
BT_PUT(field);
BT_PUT(int_field);
-
+ BT_PUT(type);
+end_no_put:
return status;
}
goto end;
}
+ /*
+ * Initialize string field payload to an empty string since in the
+ * case of a length 0 string the btr_string_cb won't be called and
+ * we will end up with an unset string payload.
+ */
+ ret = bt_ctf_field_string_set_value(field, "");
+ if (ret) {
+ PERR("Failed to initialize string field\n");
+ status = BT_CTF_BTR_STATUS_ERROR;
+ goto end;
+ }
+
end:
BT_PUT(field);
end:
BT_PUT(tag_field);
BT_PUT(selected_field);
+ BT_PUT(path);
return selected_field_type;
}
+static
+int set_event_clocks(struct bt_ctf_event *event,
+ struct bt_ctf_notif_iter *notit)
+{
+ int ret;
+ GHashTableIter iter;
+ struct bt_ctf_clock *clock;
+ uint64_t *clock_state;
+
+ g_hash_table_iter_init(&iter, notit->clock_states);
+
+ while (g_hash_table_iter_next(&iter, (gpointer) &clock,
+ (gpointer) &clock_state)) {
+ struct bt_ctf_clock_value *clock_value;
+
+ clock_value = bt_ctf_clock_value_create(clock, *clock_state);
+ if (!clock_value) {
+ ret = -1;
+ goto end;
+ }
+ ret = bt_ctf_event_set_clock_value(event, clock, clock_value);
+ bt_put(clock_value);
+ if (ret) {
+ goto end;
+ }
+ }
+ ret = 0;
+end:
+ return ret;
+}
+
static
struct bt_ctf_event *create_event(struct bt_ctf_notif_iter *notit)
{
goto error;
}
+ ret = set_event_clocks(event, notit);
+ if (ret) {
+ goto error;
+ }
+
/* Associate with current packet. */
assert(notit->packet);
ret = bt_ctf_event_set_packet(event, notit->packet);
BT_PUT(event);
}
+static
+int init_clock_states(GHashTable *clock_states, struct bt_ctf_trace *trace)
+{
+ int clock_count, i, ret = 0;
+
+ clock_count = bt_ctf_trace_get_clock_count(trace);
+ if (clock_count <= 0) {
+ ret = -1;
+ goto end;
+ }
+
+ for (i = 0; i < clock_count; i++) {
+ struct bt_ctf_clock *clock;
+
+ clock = bt_ctf_trace_get_clock(trace, i);
+ if (!clock) {
+ ret = -1;
+ goto end;
+ }
+
+ g_hash_table_insert(clock_states, bt_get(clock), NULL);
+ bt_put(clock);
+ }
+end:
+ return ret;
+}
+
+BT_HIDDEN
struct bt_ctf_notif_iter *bt_ctf_notif_iter_create(struct bt_ctf_trace *trace,
size_t max_request_sz,
struct bt_ctf_notif_iter_medium_ops medops,
void *data, FILE *err_stream)
{
+ int ret;
struct bt_ctf_notif_iter *notit = NULL;
struct bt_ctf_btr_cbs cbs = {
.types = {
PERR("Failed to allocate memory for CTF notification iterator\n");
goto end;
}
-
- notit->meta.trace = trace;
- bt_get(notit->meta.trace);
+ notit->clock_states = g_hash_table_new_full(g_direct_hash,
+ g_direct_equal, bt_put, g_free);
+ if (!notit->clock_states) {
+ PERR("Failed to create hash table\n");
+ goto error;
+ }
+ ret = init_clock_states(notit->clock_states, trace);
+ if (ret) {
+ PERR("Failed to initialize stream clock states\n");
+ goto error;
+ }
+ notit->meta.trace = bt_get(trace);
notit->medium.medops = medops;
notit->medium.max_request_sz = max_request_sz;
notit->medium.data = data;
notit->stack = stack_new(notit);
if (!notit->stack) {
PERR("Failed to create stack\n");
- bt_ctf_notif_iter_destroy(notit);
- notit = NULL;
- goto end;
+ goto error;
}
notit->btr = bt_ctf_btr_create(cbs, notit, err_stream);
if (!notit->btr) {
PERR("Failed to create binary type reader\n");
- bt_ctf_notif_iter_destroy(notit);
- notit = NULL;
- goto end;
+ goto error;
}
bt_ctf_notif_iter_reset(notit);
end:
return notit;
+error:
+ bt_ctf_notif_iter_destroy(notit);
+ notit = NULL;
+ goto end;
}
void bt_ctf_notif_iter_destroy(struct bt_ctf_notif_iter *notit)
bt_ctf_btr_destroy(notit->btr);
}
+ if (notit->clock_states) {
+ g_hash_table_destroy(notit->clock_states);
+ }
g_free(notit);
}
projects / babeltrace.git / blobdiff