def barrier_2(vm, words, params, debug_dir, data_scrdump_filename,
current_step_num):
if len(words) < 7:
logging.error("Bad barrier_2 command line")
return False
# Parse barrier command line
cmd, dx, dy, x1, y1, md5sum, timeout = words[:7]
dx, dy, x1, y1, timeout = map(int, [dx, dy, x1, y1, timeout])
# Define some paths
scrdump_filename = os.path.join(debug_dir, "scrdump.ppm")
cropped_scrdump_filename = os.path.join(debug_dir, "cropped_scrdump.ppm")
expected_scrdump_filename = os.path.join(debug_dir, "scrdump_expected.ppm")
expected_cropped_scrdump_filename = os.path.join(debug_dir,
"cropped_scrdump_expected.ppm")
comparison_filename = os.path.join(debug_dir, "comparison.ppm")
history_dir = os.path.join(debug_dir, "barrier_history")
# Collect a few parameters
timeout_multiplier = float(params.get("timeout_multiplier") or 1)
fail_if_stuck_for = float(params.get("fail_if_stuck_for") or 1e308)
stuck_detection_history = int(params.get("stuck_detection_history") or 2)
keep_screendump_history = params.get("keep_screendump_history") == "yes"
keep_all_history = params.get("keep_all_history") == "yes"
# Multiply timeout by the timeout multiplier
timeout *= timeout_multiplier
# Timeout/5 is the time it took stepmaker to complete this step.
# Divide that number by 10 to poll 10 times, just in case
# current machine is stronger then the "stepmaker machine".
# Limit to 1 (min) and 10 (max) seconds between polls.
sleep_duration = float(timeout) / 50.0
if sleep_duration < 1.0: sleep_duration = 1.0
if sleep_duration > 10.0: sleep_duration = 10.0
end_time = time.time() + timeout
end_time_stuck = time.time() + fail_if_stuck_for
start_time = time.time()
prev_whole_image_md5sums = []
failure_message = None
# Main loop
while True:
# Check for timeouts
if time.time() > end_time:
failure_message = "regular timeout"
break
if time.time() > end_time_stuck:
failure_message = "guest is stuck"
break
# Make sure vm is alive
if not vm.is_alive():
failure_message = "VM is dead"
break
# Request screendump
try:
vm.monitor.screendump(scrdump_filename, debug=False)
except kvm_monitor.MonitorError, e:
logging.warning(e)
continue
# Read image file
(w, h, data) = ppm_utils.image_read_from_ppm_file(scrdump_filename)
# Make sure image is valid
if not ppm_utils.image_verify_ppm_file(scrdump_filename):
logging.warning("Got invalid screendump: dimensions: %dx%d, "
"data size: %d", w, h, len(data))
continue
# Compute md5sum of whole image
whole_image_md5sum = ppm_utils.image_md5sum(w, h, data)
# Write screendump to history_dir (as JPG) if requested
# and if the screendump differs from the previous one
if (keep_screendump_history and
whole_image_md5sum not in prev_whole_image_md5sums[:1]):
try:
os.makedirs(history_dir)
except:
pass
history_scrdump_filename = os.path.join(history_dir,
"scrdump-step_%s-%s.jpg" % (current_step_num,
time.strftime("%Y%m%d-%H%M%S")))
try:
image = PIL.Image.open(scrdump_filename)
image.save(history_scrdump_filename, format = 'JPEG',
quality = 30)
except NameError:
pass
# Compare md5sum of barrier region with the expected md5sum
calced_md5sum = ppm_utils.get_region_md5sum(w, h, data, x1, y1, dx, dy,
cropped_scrdump_filename)
if calced_md5sum == md5sum:
# Success -- remove screendump history unless requested not to
if keep_screendump_history and not keep_all_history:
shutil.rmtree(history_dir)
# Report success
return True
# Insert image md5sum into queue of last seen images:
# If md5sum is already in queue...
if whole_image_md5sum in prev_whole_image_md5sums:
# Remove md5sum from queue
prev_whole_image_md5sums.remove(whole_image_md5sum)
else:
# Otherwise extend 'stuck' timeout
end_time_stuck = time.time() + fail_if_stuck_for
# Insert md5sum at beginning of queue
prev_whole_image_md5sums.insert(0, whole_image_md5sum)
# Limit queue length to stuck_detection_history
prev_whole_image_md5sums = \
prev_whole_image_md5sums[:stuck_detection_history]
# Sleep for a while
time.sleep(sleep_duration)
def barrier_2(vm, words, params, debug_dir, data_scrdump_filename,
current_step_num):
if len(words) < 7:
logging.error("Bad barrier_2 command line")
return False
# Parse barrier command line
cmd, dx, dy, x1, y1, md5sum, timeout = words[:7]
dx, dy, x1, y1, timeout = map(int, [dx, dy, x1, y1, timeout])
# Define some paths
scrdump_filename = os.path.join(debug_dir, "scrdump.ppm")
cropped_scrdump_filename = os.path.join(debug_dir, "cropped_scrdump.ppm")
expected_scrdump_filename = os.path.join(debug_dir, "scrdump_expected.ppm")
expected_cropped_scrdump_filename = os.path.join(debug_dir,
"cropped_scrdump_expected.ppm")
comparison_filename = os.path.join(debug_dir, "comparison.ppm")
history_dir = os.path.join(debug_dir, "barrier_history")
# Collect a few parameters
timeout_multiplier = float(params.get("timeout_multiplier") or 1)
fail_if_stuck_for = float(params.get("fail_if_stuck_for") or 1e308)
stuck_detection_history = int(params.get("stuck_detection_history") or 2)
keep_screendump_history = params.get("keep_screendump_history") == "yes"
keep_all_history = params.get("keep_all_history") == "yes"
# Multiply timeout by the timeout multiplier
timeout *= timeout_multiplier
# Timeout/5 is the time it took stepmaker to complete this step.
# Divide that number by 10 to poll 10 times, just in case
# current machine is stronger then the "stepmaker machine".
# Limit to 1 (min) and 10 (max) seconds between polls.
sleep_duration = float(timeout) / 50.0
if sleep_duration < 1.0: sleep_duration = 1.0
if sleep_duration > 10.0: sleep_duration = 10.0
end_time = time.time() + timeout
end_time_stuck = time.time() + fail_if_stuck_for
start_time = time.time()
prev_whole_image_md5sums = []
failure_message = None
# Main loop
while True:
# Check for timeouts
if time.time() > end_time:
failure_message = "regular timeout"
break
if time.time() > end_time_stuck:
failure_message = "guest is stuck"
break
# Make sure vm is alive
if not vm.is_alive():
failure_message = "VM is dead"
break
# Request screendump
try:
vm.monitor.screendump(scrdump_filename, debug=False)
except kvm_monitor.MonitorError, e:
logging.warn(e)
continue
# Read image file
(w, h, data) = ppm_utils.image_read_from_ppm_file(scrdump_filename)
# Make sure image is valid
if not ppm_utils.image_verify_ppm_file(scrdump_filename):
logging.warn("Got invalid screendump: dimensions: %dx%d, "
"data size: %d", w, h, len(data))
continue
# Compute md5sum of whole image
whole_image_md5sum = ppm_utils.image_md5sum(w, h, data)
# Write screendump to history_dir (as JPG) if requested
# and if the screendump differs from the previous one
if (keep_screendump_history and
whole_image_md5sum not in prev_whole_image_md5sums[:1]):
try:
os.makedirs(history_dir)
except Exception:
pass
history_scrdump_filename = os.path.join(history_dir,
"scrdump-step_%s-%s.jpg" % (current_step_num,
time.strftime("%Y%m%d-%H%M%S")))
try:
image = PIL.Image.open(scrdump_filename)
image.save(history_scrdump_filename, format = 'JPEG',
quality = 30)
except NameError:
pass
# Compare md5sum of barrier region with the expected md5sum
calced_md5sum = ppm_utils.get_region_md5sum(w, h, data, x1, y1, dx, dy,
cropped_scrdump_filename)
if calced_md5sum == md5sum:
# Success -- remove screendump history unless requested not to
if keep_screendump_history and not keep_all_history:
shutil.rmtree(history_dir)
# Report success
return True
# Insert image md5sum into queue of last seen images:
# If md5sum is already in queue...
if whole_image_md5sum in prev_whole_image_md5sums:
# Remove md5sum from queue
prev_whole_image_md5sums.remove(whole_image_md5sum)
else:
# Otherwise extend 'stuck' timeout
end_time_stuck = time.time() + fail_if_stuck_for
# Insert md5sum at beginning of queue
prev_whole_image_md5sums.insert(0, whole_image_md5sum)
# Limit queue length to stuck_detection_history
prev_whole_image_md5sums = \
prev_whole_image_md5sums[:stuck_detection_history]
# Sleep for a while
time.sleep(sleep_duration)
# What should we do with this failure?
if words[-1] == "optional":
logging.info(message)
return False
else:
# Collect information and put it in debug_dir
if data_scrdump_filename and os.path.exists(data_scrdump_filename):
# Read expected screendump image
(ew, eh, edata) = \
ppm_utils.image_read_from_ppm_file(data_scrdump_filename)
# Write it in debug_dir
ppm_utils.image_write_to_ppm_file(expected_scrdump_filename,
ew, eh, edata)
# Write the cropped version as well
ppm_utils.get_region_md5sum(ew, eh, edata, x1, y1, dx, dy,
expected_cropped_scrdump_filename)
# Perform comparison
(w, h, data) = ppm_utils.image_read_from_ppm_file(scrdump_filename)
if w == ew and h == eh:
(w, h, data) = ppm_utils.image_comparison(w, h, data, edata)
ppm_utils.image_write_to_ppm_file(comparison_filename, w, h,
data)
# Print error messages and fail the test
long_message = message + "\n(see analysis at %s)" % debug_dir
logging.error(long_message)
raise error.TestFail, message
def run_steps(test, params, env):
vm = env.get_vm(params.get("main_vm"))
if not vm:
# What should we do with this failure?
if words[-1] == "optional":
logging.info(message)
return False
else:
# Collect information and put it in debug_dir
if data_scrdump_filename and os.path.exists(data_scrdump_filename):
# Read expected screendump image
(ew, eh, edata) = \
ppm_utils.image_read_from_ppm_file(data_scrdump_filename)
# Write it in debug_dir
ppm_utils.image_write_to_ppm_file(expected_scrdump_filename,
ew, eh, edata)
# Write the cropped version as well
ppm_utils.get_region_md5sum(ew, eh, edata, x1, y1, dx, dy,
expected_cropped_scrdump_filename)
# Perform comparison
(w, h, data) = ppm_utils.image_read_from_ppm_file(scrdump_filename)
if w == ew and h == eh:
(w, h, data) = ppm_utils.image_comparison(w, h, data, edata)
ppm_utils.image_write_to_ppm_file(comparison_filename, w, h,
data)
# Print error messages and fail the test
long_message = message + "\n(see analysis at %s)" % debug_dir
logging.error(long_message)
raise error.TestFail, message
def run_steps(test, params, env):
vm = env.get_vm(params.get("main_vm"))
if not vm:
