#!/usr/bin/python
from zcm import ZCM, LogFile, LogEvent
import sys
if len(sys.argv) < 2:
print "Usage: ./log_event_counter.py <logfile.log>"
exit(1)
log = LogFile(sys.argv[1], 'r')
if not log.good():
print "Unable to open log"
exit(1)
i = 0
evt = log.readNextEvent()
while evt:
i = i + 1
evt = log.readNextEvent()
log.close()
print "Total events: " + str(i)
from zcm import ZCM, LogFile, LogEvent
import sys
sys.path.insert(0, '../build/types/')
from example_t import example_t
msg = example_t()
msg.timestamp = 10
event = LogEvent()
event.setEventnum (0)
event.setTimestamp (1)
event.setChannel ("test channel")
event.setData (msg.encode())
log = LogFile('testlog.log', 'w')
log.writeEvent(event)
log.close()
log = LogFile('testlog.log', 'r')
evt = log.readNextEvent()
assert evt.getEventnum() == event.getEventnum(), "Event nums dont match"
assert evt.getTimestamp() == event.getTimestamp(), "Timestamps dont match"
assert evt.getChannel() == event.getChannel(), "Channels dont match"
assert evt.getData() == event.getData(), "Data doesn't match"
evt = log.readPrevEvent()
assert evt.getEventnum() == event.getEventnum(), "Event nums dont match"
assert evt.getTimestamp() == event.getTimestamp(), "Timestamps dont match"
assert evt.getChannel() == event.getChannel(), "Channels dont match"
assert evt.getData() == event.getData(), "Data doesn't match"
#!/usr/bin/python
from zcm import ZCM, LogFile, LogEvent
import sys, os
blddir= os.path.dirname(os.path.realpath(__file__)) + '/../build/'
sys.path.insert(0, blddir + "types/")
from example_t import example_t
msg = example_t()
msg.timestamp = 10
event = LogEvent()
event.setTimestamp (1)
event.setChannel ("test channel")
log = LogFile('/tmp/testlog.log', 'w')
i = 0
while i < 100:
msg.position[0] = i
event.setData(msg.encode())
log.writeEvent(event)
i = i + 1
log.close()
from subprocess import call
cmd=["zcm-log-indexer", "-l/tmp/testlog.log", "-o/tmp/testlog.dbz",
"-t" + blddir + "types/libexamplezcmtypes.so",
"-p" + blddir + "cpp/libexample-indexer-plugin.so", "-r"]
call(cmd)
# To see the indexer command that runs here, uncomment the following two lines
print ' '.join(cmd)
