+#!/usr/bin/env python3
# example_api_test.py
-#
+#
# Babeltrace example script based on the Babeltrace API test script
-#
+#
# Copyright 2012 EfficiOS Inc.
-#
+#
# Author: Danny Serres <danny.serres@efficios.com>
-#
+#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
-#
+#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
if len(sys.argv) < 2:
raise TypeError("Usage: python example-api-test.py path/to/file")
-# Create context and add trace:
-ctx = Context()
-trace_handle = ctx.add_trace(sys.argv[1], "ctf")
+# Create TraceCollection and add trace:
+traces = TraceCollection()
+trace_handle = traces.add_trace(sys.argv[1], "ctf")
if trace_handle is None:
raise IOError("Error adding trace")
# Listing events
-lst = ctf.get_event_decl_list(trace_handle, ctx)
print("--- Event list ---")
-for item in lst:
- print("event : {}".format(item.get_name()))
+for event_declaration in trace_handle.events:
+ print("event : {}".format(event_declaration.name))
+ if event_declaration.name == "sched_switch":
+ for field_declaration in event_declaration.fields:
+ print(field_declaration)
print("--- Done ---")
-# Iter trace
-bp = IterPos(SEEK_BEGIN)
-ctf_it = ctf.Iterator(ctx,bp)
-event = ctf_it.read_event()
+for event in traces.events:
+ print("TS: {}, {} : {}".format(event.timestamp, event.cycles, event.name))
-while(event is not None):
- print("TS: {}, {} : {}".format(event.get_timestamp(),
- event.get_cycles(), event.get_name()))
-
- if event.get_name() == "sched_switch":
- sco = event.get_top_level_scope(ctf.scope.EVENT_FIELDS)
- prev_field = event.get_field(sco, "_prev_comm")
- prev_comm = prev_field.get_char_array()
-
- if ctf.field_error():
+ if event.name == "sched_switch":
+ prev_comm = event["prev_comm"]
+ if prev_comm is None:
print("ERROR: Missing prev_comm context info")
else:
print("sched_switch prev_comm: {}".format(prev_comm))
- if event.get_name() == "exit_syscall":
- sco = event.get_top_level_scope(ctf.scope.EVENT_FIELDS)
- ret_field = event.get_field(sco, "_ret")
- ret_code = ret_field.get_int64()
-
- if ctf.field_error():
+ if event.name == "exit_syscall":
+ ret_code = event["ret"]
+ if ret_code is None:
print("ERROR: Unable to extract ret")
else:
print("exit_syscall ret: {}".format(ret_code))
-
- ret = ctf_it.next()
- if ret < 0:
- break
- else:
- event = ctf_it.read_event()
-
-del ctf_it