def read_one_marker(fileobj, status, buffer_so_far=None):
fileobj = FileObjWrapper(fileobj, buffer_so_far)
marker = fileobj.read(1)
if marker == MARKER_STACKTRACE:
count = read_word(fileobj)
# for now
assert count == 1
depth = read_word(fileobj)
assert depth <= 2**16, 'stack strace depth too high'
trace = read_trace(fileobj, depth, status.version, status.profile_lines)
if status.version >= VERSION_THREAD_ID:
thread_id, = struct.unpack('l', fileobj.read(WORD_SIZE))
else:
thread_id = 0
if status.profile_memory:
mem_in_kb, = struct.unpack('l', fileobj.read(WORD_SIZE))
else:
mem_in_kb = 0
trace.reverse()
status.profiles.append((trace, 1, thread_id, mem_in_kb))
elif marker == MARKER_VIRTUAL_IP:
unique_id = read_word(fileobj)
name = read_string(fileobj)
if PY3:
name = name.decode()
status.virtual_ips[unique_id] = name
elif marker == MARKER_TRAILER:
return True # finished
else:
raise FileReadError("unexpected marker: %d" % ord(marker))
return False
def read_header(fileobj, buffer_so_far=None):
fileobj = FileObjWrapper(fileobj, buffer_so_far)
assert_error(read_word(fileobj) == 0)
assert_error(read_word(fileobj) == 3)
assert_error(read_word(fileobj) == 0)
period = read_word(fileobj)
assert_error(read_word(fileobj) == 0)
interp_name, version, profile_memory, profile_lines = _read_header(fileobj)
return ReaderStatus(interp_name, period, version, None, profile_memory,
profile_lines)
def read_header(fileobj, buffer_so_far=None):
fileobj = FileObjWrapper(fileobj, buffer_so_far)
assert_error(read_word(fileobj) == 0)
assert_error(read_word(fileobj) == 3)
assert_error(read_word(fileobj) == 0)
period = read_word(fileobj)
assert_error(read_word(fileobj) == 0)
interp_name, version, profile_memory, profile_lines = _read_header(fileobj)
return ReaderStatus(interp_name, period, version, None, profile_memory,
profile_lines)
def read_one_marker(fileobj, status, buffer_so_far=None):
fileobj = FileObjWrapper(fileobj, buffer_so_far)
marker = fileobj.read(1)
if marker == MARKER_STACKTRACE:
count = read_word(fileobj)
# for now
assert count == 1
depth = read_word(fileobj)
assert depth <= 2**16, 'stack strace depth too high'
trace = read_trace(fileobj, depth, status.version,
status.profile_lines)
if status.version >= VERSION_THREAD_ID:
thread_id = read_addr(fileobj)
else:
thread_id = 0
if status.profile_memory:
mem_in_kb = read_addr(fileobj)
else:
mem_in_kb = 0
trace.reverse()
status.profiles.append((trace, 1, thread_id, mem_in_kb))
elif marker == MARKER_VIRTUAL_IP or marker == MARKER_NATIVE_SYMBOLS:
unique_id = read_addr(fileobj)
name = read_string(fileobj)
if PY3K:
name = name.decode()
status.virtual_ips[unique_id] = name
elif marker == MARKER_META:
read_string(fileobj)
read_string(fileobj)
# TODO save the for the tests?
elif marker == MARKER_TRAILER:
return True # finished
elif marker == MARKER_TIME_N_ZONE:
read_time_and_zone(fileobj)
else:
raise FileReadError("unexpected marker: %d" % ord(marker))
return False
def read_one_marker(fileobj, status, buffer_so_far=None):
fileobj = FileObjWrapper(fileobj, buffer_so_far)
marker = fileobj.read(1)
if marker == MARKER_STACKTRACE:
count = read_word(fileobj)
# for now
assert count == 1
depth = read_word(fileobj)
assert depth <= 2**16, 'stack strace depth too high'
trace = read_trace(fileobj, depth, status.version, status.profile_lines)
if status.version >= VERSION_THREAD_ID:
thread_id = read_addr(fileobj)
else:
thread_id = 0
if status.profile_memory:
mem_in_kb = read_addr(fileobj)
else:
mem_in_kb = 0
trace.reverse()
status.profiles.append((trace, 1, thread_id, mem_in_kb))
elif marker == MARKER_VIRTUAL_IP or marker == MARKER_NATIVE_SYMBOLS:
unique_id = read_addr(fileobj)
name = read_string(fileobj)
if PY3K:
name = name.decode()
status.virtual_ips[unique_id] = name
elif marker == MARKER_META:
read_string(fileobj)
read_string(fileobj)
# TODO save the for the tests?
elif marker == MARKER_TRAILER:
return True # finished
elif marker == MARKER_TIME_N_ZONE:
read_time_and_zone(fileobj)
else:
raise FileReadError("unexpected marker: %d" % ord(marker))
return False
def read_header(fileobj, buffer_so_far=None):
fileobj = FileObjWrapper(fileobj, buffer_so_far)
assert_error(read_word(fileobj) == 0)
assert_error(read_word(fileobj) == 3)
assert_error(read_word(fileobj) == 0)
period = read_word(fileobj)
assert_error(read_word(fileobj) == 0)
marker = fileobj.read(1)
assert_error(marker == MARKER_HEADER, "expected header")
version, = struct.unpack("!h", fileobj.read(2))
if version >= VERSION_MODE_AWARE:
mode = ord(fileobj.read(1))
profile_memory = (mode & PROFILE_MEMORY) != 0
profile_lines = (mode & PROFILE_LINES) != 0
else:
profile_memory = version == VERSION_MEMORY
profile_lines = False
lgt = ord(fileobj.read(1))
interp_name = fileobj.read(lgt)
if PY3:
interp_name = interp_name.decode()
return ReaderStatus(interp_name, period, version, None, profile_memory, profile_lines)
def read_prof(fileobj, virtual_ips_only=False):
fileobj = gunzip(fileobj)
assert read_word(fileobj) == 0 # header count
assert read_word(fileobj) == 3 # header size
assert read_word(fileobj) == 0
period = read_word(fileobj)
assert read_word(fileobj) == 0
virtual_ips = []
profiles = []
interp_name = None
version = 0
profile_memory = False
profile_lines = False
while True:
marker = fileobj.read(1)
if marker == MARKER_HEADER:
assert not version, "multiple headers"
version, = struct.unpack("!h", fileobj.read(2))
if version >= VERSION_MODE_AWARE:
mode = ord(fileobj.read(1))
profile_memory = (mode & PROFILE_MEMORY) != 0
profile_lines = (mode & PROFILE_LINES) != 0
else:
profile_memory = version == VERSION_MEMORY
profile_lines = False
lgt = ord(fileobj.read(1))
interp_name = fileobj.read(lgt)
if PY3:
interp_name = interp_name.decode()
elif marker == MARKER_STACKTRACE:
count = read_word(fileobj)
# for now
assert count == 1
depth = read_word(fileobj)
assert depth <= 2**16, 'stack strace depth too high'
if virtual_ips_only:
fileobj.read(WORD_SIZE * depth)
trace = []
else:
trace = read_trace(fileobj, depth, version, profile_lines)
if version >= VERSION_THREAD_ID:
thread_id, = struct.unpack('l', fileobj.read(WORD_SIZE))
else:
thread_id = 0
if profile_memory:
mem_in_kb, = struct.unpack('l', fileobj.read(WORD_SIZE))
else:
mem_in_kb = 0
trace.reverse()
profiles.append((trace, 1, thread_id, mem_in_kb))
elif marker == MARKER_INTERP_NAME:
assert not version, "multiple headers"
assert not interp_name, "Dual interpreter name header"
lgt = ord(fileobj.read(1))
interp_name = fileobj.read(lgt)
if PY3:
interp_name = interp_name.decode()
elif marker == MARKER_VIRTUAL_IP:
unique_id = read_word(fileobj)
name = read_string(fileobj)
if PY3:
name = name.decode()
virtual_ips.append((unique_id, name))
elif marker == MARKER_TRAILER:
#if not virtual_ips_only:
# symmap = read_ranges(fileobj.read())
break
else:
assert not marker, (fileobj.tell(), repr(marker))
break
virtual_ips.sort() # I think it's sorted, but who knows
if virtual_ips_only:
return virtual_ips
return period, profiles, virtual_ips, interp_name
