#include <babeltrace/trace-ir/clock-class.h>
#include <babeltrace/object-internal.h>
#include <babeltrace/babeltrace-internal.h>
+#include <babeltrace/common-internal.h>
#include <babeltrace/object-pool-internal.h>
#include <babeltrace/compat/uuid-internal.h>
#include <babeltrace/types.h>
#include <stdint.h>
#include <glib.h>
-#define NS_PER_S_I INT64_C(1000000000)
-#define NS_PER_S_U UINT64_C(1000000000)
-
struct bt_clock_class {
struct bt_object base;
struct bt_clock_class *cc, 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(cc);
- 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->frequency == 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->frequency;
- }
-
- 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->frequency) {
- ret = -1;
- goto end;
- }
-
- if (!bt_safe_to_mul_uint64(value_periods, cc->frequency)) {
- ret = -1;
- goto end;
- }
-
- value_period_cycles = value_periods * cc->frequency;
-
- if (!bt_safe_to_mul_uint64(cc->frequency, rem_value_in_ns)) {
- ret = -1;
- goto end;
- }
-
- if (!bt_safe_to_add_uint64(cc->frequency * rem_value_in_ns / NS_PER_S_U,
- value_period_cycles)) {
- ret = -1;
- goto end;
- }
-
- *raw_value = cc->frequency * rem_value_in_ns / NS_PER_S_U +
- value_period_cycles;
-
-end:
- return ret;
+
+ return bt_common_clock_value_from_ns_from_origin(cc->offset_seconds,
+ cc->offset_cycles, cc->frequency, ns_from_origin,
+ raw_value);
}
#endif /* BABELTRACE_TRACE_IR_CLOCK_CLASS_INTERNAL_H */