else:
usePID = False
-
-ctx = Context()
-ret = ctx.add_trace(sys.argv[len(sys.argv)-1], "ctf")
+traces = TraceCollection()
+ret = traces.add_trace(sys.argv[len(sys.argv)-1], "ctf")
if ret is None:
raise IOError("Error adding trace")
-# Setting iterator
-bp = IterPos(SEEK_BEGIN)
-ctf_it = ctf.Iterator(ctx, bp)
-
-# Reading events
-event = ctf_it.read_event()
-while event is not None:
+for event in traces.events:
while True:
- if event.get_name() == "sched_switch":
- # Getting scope definition
- sco = event.get_top_level_scope(ctf.scope.STREAM_EVENT_CONTEXT)
- if sco is None:
- print("ERROR: Cannot get definition scope for sched_switch")
- break # Next event
-
+ if event.name == "sched_switch":
# Getting PID
- pid_field = event.get_field(sco, "_pid")
- pid = pid_field.get_int64()
-
- if ctf.field_error():
+ pid = event.field_with_scope("pid", CTFScope.STREAM_EVENT_CONTEXT)
+ if pid is None:
print("ERROR: Missing PID info for sched_switch")
break # Next event
if usePID and (pid != long(sys.argv[1])):
break # Next event
- sco = event.get_top_level_scope(ctf.scope.EVENT_FIELDS)
-
- # prev_comm
- field = event.get_field(sco, "_prev_comm")
- prev_comm = field.get_char_array()
- if ctf.field_error():
- print("ERROR: Missing prev_comm context info")
-
- # prev_tid
- field = event.get_field(sco, "_prev_tid")
- prev_tid = field.get_int64()
- if ctf.field_error():
- print("ERROR: Missing prev_tid context info")
-
- # prev_prio
- field = event.get_field(sco, "_prev_prio")
- prev_prio = field.get_int64()
- if ctf.field_error():
- print("ERROR: Missing prev_prio context info")
-
- # prev_state
- field = event.get_field(sco, "_prev_state")
- prev_state = field.get_int64()
- if ctf.field_error():
- print("ERROR: Missing prev_state context info")
-
- # next_comm
- field = event.get_field(sco, "_next_comm")
- next_comm = field.get_char_array()
- if ctf.field_error():
- print("ERROR: Missing next_comm context info")
-
- # next_tid
- field = event.get_field(sco, "_next_tid")
- next_tid = field.get_int64()
- if ctf.field_error():
- print("ERROR: Missing next_tid context info")
-
- # next_prio
- field = event.get_field(sco, "_next_prio")
- next_prio = field.get_int64()
- if ctf.field_error():
- print("ERROR: Missing next_prio context info")
+ prev_comm = event["prev_comm"]
+ prev_tid = event["prev_tid"]
+ prev_prio = event["prev_prio"]
+ prev_state = event["prev_state"]
+ next_comm = event["next_comm"]
+ next_tid = event["next_tid"]
+ next_prio = event["next_prio"]
# Output
print("sched_switch, pid = {}, TS = {}, prev_comm = {},\n\t"
"prev_tid = {}, prev_prio = {}, prev_state = {},\n\t"
"next_comm = {}, next_tid = {}, next_prio = {}".format(
- pid, event.get_timestamp(), prev_comm, prev_tid,
+ pid, event.timestamp, prev_comm, prev_tid,
prev_prio, prev_state, next_comm, next_tid, next_prio))
break # Next event
-
- # Next event
- ret = ctf_it.next()
- if ret < 0:
- break
- event = ctf_it.read_event()
-
-del ctf_it