# Resume mode to interpret resume_time:
# 0 = node_time, 1 = publish_time, 2 = receive_time.
int32 RESUME_MODE_NODE_TIME=0
int32 RESUME_MODE_PUBLISH_TIME=1
int32 RESUME_MODE_RECEIVE_TIME=2

# Timestamp in the future when to resume recording/playback.
# If empty or time in the past, resumes recording/playback immediately.
# Note: The resume_time is not supported by player and shall be set to zero when using Resume with
# player.
builtin_interfaces/Time resume_time

# Resume mode to use for the resume_time request.
int32 resume_mode

# Topic name to use for timestamp-based resume evaluation.
# If empty, evaluate using messages from all topics.
string tracking_topic_name
---
# Return codes for Resume response.
int32 RETURN_CODE_SUCCESS=0
int32 RETURN_CODE_INVALID_RESUME_MODE=1
int32 RETURN_CODE_INVALID_TRACKING_TOPIC=2
int32 RETURN_CODE_RESUME_FAILED=3

# Return code. Use RETURN_CODE_SUCCESS on success; otherwise use one of the error codes.
int32 return_code

# Error string. Empty if no error occurred.
string error_string