#include <stdbool.h>
#include <babeltrace/assert-internal.h>
#include <babeltrace/babeltrace-internal.h>
-#include <babeltrace/trace-ir/field-classes-const.h>
+#include <babeltrace/trace-ir/field-class-const.h>
#include <babeltrace/trace-ir/field-path-const.h>
#include <babeltrace/trace-ir/event-class-const.h>
-#include <babeltrace/values.h>
-#include <stdarg.h>
+#include <babeltrace/graph/self-message-iterator.h>
+#include <babeltrace/value.h>
#include <inttypes.h>
+#include <stdarg.h>
#include <stdint.h>
+#include <unistd.h>
#include <glib.h>
#define BT_COMMON_COLOR_RESET "\033[0m"
BT_HIDDEN
size_t bt_common_get_page_size(void);
+/*
+ * Wraps read() function to handle EINTR and partial reads.
+ * On success, it returns `count` received as parameter. On error, it returns a
+ * value smaller than the requested `count`.
+ */
+static inline
+ssize_t bt_common_read(int fd, void *buf, size_t count)
+{
+ size_t i = 0;
+ ssize_t ret;
+
+ BT_ASSERT(buf);
+
+ /* Never return an overflow value. */
+ BT_ASSERT(count <= SSIZE_MAX);
+
+ do {
+ ret = read(fd, buf + i, count - i);
+ if (ret < 0) {
+ if (errno == EINTR) {
+#ifdef BT_LOGD_STR
+ BT_LOGD_STR("read() call interrupted. Retrying...");
+#endif
+ /* retry operation */
+ continue;
+ } else {
+#ifdef BT_LOGE_ERRNO
+ BT_LOGE_ERRNO("Error while reading", ": fd=%d",
+ fd);
+#endif
+ goto end;
+ }
+ }
+ i += ret;
+ BT_ASSERT(i <= count);
+ } while (count - i > 0 && ret > 0);
+
+end:
+ if (ret >= 0) {
+ if (i == 0) {
+ ret = -1;
+ } else {
+ ret = i;
+ }
+ }
+
+ return ret;
+}
+
static inline
const char *bt_common_field_class_type_string(enum bt_field_class_type class_type)
{
const char *bt_common_scope_string(enum bt_scope scope)
{
switch (scope) {
- case BT_SCOPE_PACKET_HEADER:
- return "BT_SCOPE_PACKET_HEADER";
case BT_SCOPE_PACKET_CONTEXT:
return "BT_SCOPE_PACKET_CONTEXT";
- case BT_SCOPE_EVENT_HEADER:
- return "BT_SCOPE_EVENT_HEADER";
case BT_SCOPE_EVENT_COMMON_CONTEXT:
return "BT_SCOPE_EVENT_COMMON_CONTEXT";
case BT_SCOPE_EVENT_SPECIFIC_CONTEXT:
};
static inline
-GString *bt_field_path_string(struct bt_field_path *path)
+GString *bt_common_field_path_string(struct bt_field_path *path)
{
GString *str = g_string_new(NULL);
uint64_t i;
g_string_append_printf(str, "[%s", bt_common_scope_string(
bt_field_path_get_root_scope(path)));
- for (i = 0; i < bt_field_path_get_index_count(path); i++) {
- g_string_append_printf(str, ", %" PRIu64,
- bt_field_path_get_index_by_index(path, i));
+ for (i = 0; i < bt_field_path_get_item_count(path); i++) {
+ const struct bt_field_path_item *fp_item =
+ bt_field_path_borrow_item_by_index_const(path, i);
+
+ switch (bt_field_path_item_get_type(fp_item)) {
+ case BT_FIELD_PATH_ITEM_TYPE_INDEX:
+ g_string_append_printf(str, ", %" PRIu64,
+ bt_field_path_item_index_get_index(fp_item));
+ break;
+ case BT_FIELD_PATH_ITEM_TYPE_CURRENT_ARRAY_ELEMENT:
+ g_string_append(str, ", <CUR>");
+ break;
+ default:
+ abort();
+ }
}
g_string_append(str, "]");
return str;
}
+static inline
+const char *bt_common_self_message_iterator_status_string(
+ enum bt_self_message_iterator_status status)
+{
+ switch (status) {
+ case BT_SELF_MESSAGE_ITERATOR_STATUS_AGAIN:
+ return "BT_SELF_MESSAGE_ITERATOR_STATUS_AGAIN";
+ case BT_SELF_MESSAGE_ITERATOR_STATUS_END:
+ return "BT_SELF_MESSAGE_ITERATOR_STATUS_END";
+ case BT_SELF_MESSAGE_ITERATOR_STATUS_OK:
+ return "BT_SELF_MESSAGE_ITERATOR_STATUS_OK";
+ case BT_SELF_MESSAGE_ITERATOR_STATUS_ERROR:
+ return "BT_SELF_MESSAGE_ITERATOR_STATUS_ERROR";
+ case BT_SELF_MESSAGE_ITERATOR_STATUS_NOMEM:
+ return "BT_SELF_MESSAGE_ITERATOR_STATUS_NOMEM";
+ default:
+ return "(unknown)";
+ }
+};
+
+#define NS_PER_S_I INT64_C(1000000000)
+#define NS_PER_S_U UINT64_C(1000000000)
+
+static inline
+int bt_common_clock_value_from_ns_from_origin(
+ int64_t cc_offset_seconds, uint64_t cc_offset_cycles,
+ uint64_t cc_freq, int64_t ns_from_origin,
+ uint64_t *raw_value)
+{
+ int ret = 0;
+ int64_t offset_in_ns;
+ uint64_t value_in_ns;
+ uint64_t rem_value_in_ns;
+ uint64_t value_periods;
+ uint64_t value_period_cycles;
+ int64_t ns_to_add;
+
+ BT_ASSERT(raw_value);
+
+ /* Compute offset part of requested value, in nanoseconds */
+ if (!bt_safe_to_mul_int64(cc_offset_seconds, NS_PER_S_I)) {
+ ret = -1;
+ goto end;
+ }
+
+ offset_in_ns = cc_offset_seconds * NS_PER_S_I;
+
+ if (cc_freq == NS_PER_S_U) {
+ ns_to_add = (int64_t) cc_offset_cycles;
+ } else {
+ if (!bt_safe_to_mul_int64((int64_t) cc_offset_cycles,
+ NS_PER_S_I)) {
+ ret = -1;
+ goto end;
+ }
+
+ ns_to_add = ((int64_t) cc_offset_cycles * NS_PER_S_I) /
+ (int64_t) cc_freq;
+ }
+
+ if (!bt_safe_to_add_int64(offset_in_ns, ns_to_add)) {
+ ret = -1;
+ goto end;
+ }
+
+ offset_in_ns += ns_to_add;
+
+ /* Value part in nanoseconds */
+ if (ns_from_origin < offset_in_ns) {
+ ret = -1;
+ goto end;
+ }
+
+ value_in_ns = (uint64_t) (ns_from_origin - offset_in_ns);
+
+ /* Number of whole clock periods in `value_in_ns` */
+ value_periods = value_in_ns / NS_PER_S_U;
+
+ /* Remaining nanoseconds in cycles + whole clock periods in cycles */
+ rem_value_in_ns = value_in_ns - value_periods * NS_PER_S_U;
+
+ if (value_periods > UINT64_MAX / cc_freq) {
+ ret = -1;
+ goto end;
+ }
+
+ if (!bt_safe_to_mul_uint64(value_periods, cc_freq)) {
+ ret = -1;
+ goto end;
+ }
+
+ value_period_cycles = value_periods * cc_freq;
+
+ if (!bt_safe_to_mul_uint64(cc_freq, rem_value_in_ns)) {
+ ret = -1;
+ goto end;
+ }
+
+ if (!bt_safe_to_add_uint64(cc_freq * rem_value_in_ns / NS_PER_S_U,
+ value_period_cycles)) {
+ ret = -1;
+ goto end;
+ }
+
+ *raw_value = cc_freq * rem_value_in_ns / NS_PER_S_U +
+ value_period_cycles;
+
+end:
+ return ret;
+}
+
+static inline
+enum bt_self_message_iterator_status bt_common_message_iterator_status_to_self(
+ enum bt_message_iterator_status status)
+{
+ return (int) status;
+}
#endif /* BABELTRACE_COMMON_INTERNAL_H */
projects / babeltrace.git / blobdiff