def unpack(ctypes_obj, string, bytes=None):
"""Unpack a python string into a ctypes structure
Args:
ctypes_obj (ctypes.Structure): ctypes structure to pack into
string (str): String to copy over the ctypes_obj memory space
Kwargs:
bytes: Number of bytes to copy
Raises:
ValueError, MemoryError
If the length of the string is not the correct size for the memory
footprint of the ctypes structure then the bytes keyword argument must
be used
"""
if bytes is None:
if len(string) != ctypes.sizeof(ctypes_obj):
raise ValueError("Attempt to unpack a string of size %d into a \
struct of size %d" % (len(string), ctypes.sizeof(ctypes_obj)))
bytes = len(string)
if bytes > ctypes.sizeof(ctypes_obj):
raise MemoryError("Attempt to unpack %d bytes over an object \
of size %d" % (bytes, ctypes.sizeof(ctypes_obj)))
ctypes.memmove(ctypes.addressof(ctypes_obj), string, bytes)
def load_static_sym(self):
# http://wiki.osdev.org/COFF
# http://www.delorie.com/djgpp/doc/coff/symtab.html
sym_table_off = self.pe.FILE_HEADER.PointerToSymbolTable
n_sym = self.pe.FILE_HEADER.NumberOfSymbols
string_table_off = sym_table_off + sizeof(SymbolEntry) * n_sym
base = self.pe.OPTIONAL_HEADER.ImageBase + \
self.pe.OPTIONAL_HEADER.SectionAlignment
off = sym_table_off
i = 0
while i < n_sym:
sym = self.pe.get_sym_at_offset(off)
if sym.sclass == 2: # static symbol
name = \
sym.sym.name.decode() if sym.sym.addr.zeroes != 0 else \
self.pe.get_string_at_offset(string_table_off + \
sym.sym.addr.offset)
# print("%d %s" % (sym.scnum, name))
self.classbinary.reverse_symbols[sym.value + base] = name
self.classbinary.symbols[name] = sym.value + base
if sym.numaux != 0:
off += sym.numaux * sizeof(SymbolEntry)
i += sym.numaux
off += sizeof(SymbolEntry)
i += 1
def win_pick(window, starting_color):
paste = None
start_color = None
if starting_color is not None:
start_color = hexstr_to_bgr(starting_color[1:])
s = sublime.load_settings("ColorPicker.sublime-settings")
custom_colors = s.get("custom_colors", ['0'] * 16)
if len(custom_colors) < 16:
custom_colors = ['0'] * 16
s.set('custom_colors', custom_colors)
cc = CHOOSECOLOR()
ctypes.memset(ctypes.byref(cc), 0, ctypes.sizeof(cc))
cc.lStructSize = ctypes.sizeof(cc)
if sublime_version == 2:
cc.hwndOwner = window.hwnd()
else:
# Temporary fix for Sublime Text 3 - For some reason the hwnd crashes it
# Of course, clicking out of the colour picker and into Sublime will make
# Sublime not respond, but as soon as you exit the colour picker it's ok
cc.hwndOwner = None
cc.Flags = CC_SOLIDCOLOR | CC_FULLOPEN | CC_RGBINIT
cc.rgbResult = c_uint32(start_color) if not paste and start_color else get_pixel()
cc.lpCustColors = to_custom_color_array(custom_colors)
if ChooseColorW(ctypes.byref(cc)):
color = bgr_to_hexstr(cc.rgbResult)
else:
color = None
return color
def _task_list():
psapi = ctypes.windll.psapi
kernel = ctypes.windll.kernel32
hModule = ctypes.c_ulong()
count = ctypes.c_ulong()
modname = ctypes.c_buffer(30)
PROCESS_QUERY_INFORMATION = 0x0400
PROCESS_VM_READ = 0x0010
pid_list = win32process.EnumProcesses()
info_list = []
for pid in pid_list:
hProcess = kernel.OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, False, pid)
if hProcess:
psapi.EnumProcessModules(hProcess, ctypes.byref(hModule), ctypes.sizeof(hModule), ctypes.byref(count))
psapi.GetModuleBaseNameA(hProcess, hModule.value, modname, ctypes.sizeof(modname))
pname = ctypes.string_at(modname)
procmeminfo = win32process.GetProcessMemoryInfo(hProcess)
procmemusage = (procmeminfo["WorkingSetSize"]/1024)
info_list.append((pid, pname, procmemusage))
kernel.CloseHandle(hProcess)
return info_list
def get_pids(process_name):
BIG_ARRAY = DWORD * 4096
processes = BIG_ARRAY()
needed = DWORD()
pids = []
result = windll.psapi.EnumProcesses(processes, sizeof(processes), addressof(needed))
if not result:
return pids
num_results = needed.value / sizeof(DWORD)
for i in range(num_results):
pid = processes[i]
process = windll.kernel32.OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, 0, pid)
if process:
module = HANDLE()
result = windll.psapi.EnumProcessModules(process, addressof(module), sizeof(module), addressof(needed))
if result:
name = create_unicode_buffer(1024)
result = windll.psapi.GetModuleBaseNameW(process, module, name, len(name))
# TODO: This might not be the best way to
# match a process name; maybe use a regexp instead.
if name.value.startswith(process_name):
pids.append(pid)
windll.kernel32.CloseHandle(module)
windll.kernel32.CloseHandle(process)
return pids
def hash_data(buffer, alg, block_size=16*1024):
if alg not in _calg_map:
raise InvalidHashAlgorithm()
block_size = int(block_size)
if block_size <= 0:
raise ValueError("'block_size' should be a positive integer")
with _crypt_context() as hCryptProv:
with _crypt_hash(hCryptProv, _calg_map[alg]) as hCryptHash:
buffer_len = len(buffer)
if block_size > buffer_len:
block_size = buffer_len
i = 0
while i < buffer_len:
count = block_size if (i + block_size <= buffer_len) else (buffer_len - i)
if not CryptHashData(hCryptHash, _cast(buffer[i:i+count], PBYTE), DWORD(count), DWORD(0)):
raise WinError()
i += count
dwHashLen = DWORD(sizeof(DWORD))
dwHashSize = DWORD()
if not CryptGetHashParam(hCryptHash, HP_HASHSIZE, _cast(pointer(dwHashSize), PBYTE), pointer(dwHashLen), DWORD(0)):
raise WinError()
pbHashVal = (BYTE * dwHashSize.value)()
dwHashLen.value = sizeof(pbHashVal)
if not CryptGetHashParam(hCryptHash, HP_HASHVAL, pbHashVal, pointer(dwHashLen), DWORD(0)):
raise WinError()
return ''.join(map(lambda b: format(b, '02x'), bytes(pbHashVal)))
def read_fts_container(self, filepath):
f = open(filepath, "rb")
data = f.read()
f.close()
self.log.debug("Loaded %i bytes from file %s" % (len(data), filepath))
pos = 0
primaryHeader = UNIQUE_HEADER.from_buffer_copy(data, pos)
pos += sizeof(UNIQUE_HEADER)
self.log.debug("Header path: %s" % primaryHeader.path.decode('iso-8859-1'))
self.log.debug("Header count: %i" % primaryHeader.count)
self.log.debug("Header version: %f" % primaryHeader.version)
self.log.debug("Header uncompressedsize: %i" % primaryHeader.uncompressedsize)
secondaryHeadersType = UNIQUE_HEADER3 * primaryHeader.count
secondaryHeaders = secondaryHeadersType.from_buffer_copy(data, pos)
pos += sizeof(secondaryHeadersType)
for h in secondaryHeaders:
self.log.debug("Header2 path: %s" % h.path.decode('iso-8859-1'))
uncompressed = self.ioLib.unpack(data[pos:])
if primaryHeader.uncompressedsize != len(uncompressed):
self.log.warn("Uncompressed size mismatch, expected %i actual %i" % (primaryHeader.uncompressedsize, len(uncompressed)))
return self.read_fts(uncompressed)
def _readSMART(self, name):
serial = 'NO SERIAL NUMBER'
handle = ctypes.windll.kernel32.CreateFileW(
name,
win32file.GENERIC_READ | win32file.GENERIC_WRITE,
win32file.FILE_SHARE_READ | win32file.FILE_SHARE_WRITE,
None, win32file.OPEN_EXISTING, 0, 0)
if handle == -1:
logging.warning("Failed to open device '%s' for querying the "
"serial number. Error code: %d", name,
win32api.GetLastError())
return serial
q = StoragePropertyQuery()
r = StorageDeviceDescriptor()
read_count = ctypes.wintypes.ULONG()
ret = ctypes.windll.kernel32.DeviceIoControl(
handle, 0x002D1400, ctypes.addressof(q), ctypes.sizeof(q),
ctypes.addressof(r), ctypes.sizeof(r),
ctypes.addressof(read_count), 0)
if ret:
serial = buffer(r)[r.SerialNumberOffset:r.SerialNumberOffset + 20]
else:
logging.warning("DeviceIoControl for device %s failed with"
"eror code: %d. Could not look up serial number",
name, win32api.GetLastError())
ctypes.windll.kernel32.CloseHandle(handle)
return serial
def copy_windows(text):
# This function is heavily based on
# http://msdn.com/ms649016#_win32_Copying_Information_to_the_Clipboard
with window() as hwnd:
# http://msdn.com/ms649048
# If an application calls OpenClipboard with hwnd set to NULL,
# EmptyClipboard sets the clipboard owner to NULL;
# this causes SetClipboardData to fail.
# => We need a valid hwnd to copy something.
with clipboard(hwnd):
safeEmptyClipboard()
if text:
# http://msdn.com/ms649051
# If the hMem parameter identifies a memory object,
# the object must have been allocated using the
# function with the GMEM_MOVEABLE flag.
count = wcslen(text) + 1
handle = safeGlobalAlloc(GMEM_MOVEABLE,
count * sizeof(c_wchar))
locked_handle = safeGlobalLock(handle)
ctypes.memmove(c_wchar_p(locked_handle), c_wchar_p(text),
count * sizeof(c_wchar))
safeGlobalUnlock(handle)
safeSetClipboardData(CF_UNICODETEXT, handle)
def _gen_ehdr(self, pid, phdrs): """ Generate elf header for process pid with program headers phdrs. """ ehdr = elf.Elf64_Ehdr() ctypes.memset(ctypes.addressof(ehdr), 0, ctypes.sizeof(ehdr)) ehdr.e_ident[elf.EI_MAG0] = elf.ELFMAG0 ehdr.e_ident[elf.EI_MAG1] = elf.ELFMAG1 ehdr.e_ident[elf.EI_MAG2] = elf.ELFMAG2 ehdr.e_ident[elf.EI_MAG3] = elf.ELFMAG3 ehdr.e_ident[elf.EI_CLASS] = elf.ELFCLASS64 ehdr.e_ident[elf.EI_DATA] = elf.ELFDATA2LSB ehdr.e_ident[elf.EI_VERSION] = elf.EV_CURRENT ehdr.e_type = elf.ET_CORE ehdr.e_machine = elf.EM_X86_64 ehdr.e_version = elf.EV_CURRENT ehdr.e_phoff = ctypes.sizeof(elf.Elf64_Ehdr()) ehdr.e_ehsize = ctypes.sizeof(elf.Elf64_Ehdr()) ehdr.e_phentsize = ctypes.sizeof(elf.Elf64_Phdr()) #FIXME Case len(phdrs) > PN_XNUM should be handled properly. # See fs/binfmt_elf.c from linux kernel. ehdr.e_phnum = len(phdrs) return ehdr
def _gen_fpregset(self, pid, tid): """ Generate NT_FPREGSET note for thread tid of process pid. """ core = self.cores[tid] regs = core["thread_info"]["fpregs"] fpregset = elf.elf_fpregset_t() ctypes.memset(ctypes.addressof(fpregset), 0, ctypes.sizeof(fpregset)) fpregset.cwd = regs["cwd"] fpregset.swd = regs["swd"] fpregset.ftw = regs["twd"] fpregset.fop = regs["fop"] fpregset.rip = regs["rip"] fpregset.rdp = regs["rdp"] fpregset.mxcsr = regs["mxcsr"] fpregset.mxcr_mask = regs["mxcsr_mask"] fpregset.st_space = (ctypes.c_uint * len(regs["st_space"]))(*regs["st_space"]) fpregset.xmm_space = (ctypes.c_uint * len(regs["xmm_space"]))(*regs["xmm_space"]) #fpregset.padding = regs["padding"] unused nhdr = elf.Elf64_Nhdr() nhdr.n_namesz = 5 nhdr.n_descsz = ctypes.sizeof(elf.elf_fpregset_t()) nhdr.n_type = elf.NT_FPREGSET note = elf_note() note.data = fpregset note.owner = "CORE" note.nhdr = nhdr return note
def get_cdrom_drive_mount_point(self):
mount_point = None
buf = ctypes.create_unicode_buffer(2048)
buf_len = kernel32.GetLogicalDriveStringsW(ctypes.sizeof(buf) / ctypes.sizeof(wintypes.WCHAR), buf)
if not buf_len:
raise Exception("Cannot enumerate logical devices")
cdrom_dev = self.get_physical_path().rsplit("\\")[-1].upper()
i = 0
while not mount_point and i < buf_len:
curr_drive = ctypes.wstring_at(ctypes.addressof(buf) + i * ctypes.sizeof(wintypes.WCHAR))[:-1]
dev = ctypes.create_unicode_buffer(2048)
ret_val = kernel32.QueryDosDeviceW(curr_drive, dev, ctypes.sizeof(dev) / ctypes.sizeof(wintypes.WCHAR))
if not ret_val:
raise Exception("Cannot query NT device")
if dev.value.rsplit("\\")[-1].upper() == cdrom_dev:
mount_point = curr_drive
else:
i += len(curr_drive) + 2
return mount_point
def _get_properties(properties, length):
"""
Convenience Function to get the material properties as a dict
and values in a python format.
"""
result = {}
#read all properties
for p in [properties[i] for i in range(length)]:
#the name
p = p.contents
key = (str(p.mKey.data.decode("utf-8")).split('.')[1], p.mSemantic)
#the data
from ctypes import POINTER, cast, c_int, c_float, sizeof
if p.mType == 1:
arr = cast(p.mData, POINTER(c_float * int(p.mDataLength/sizeof(c_float)) )).contents
value = [x for x in arr]
elif p.mType == 3: #string can't be an array
value = cast(p.mData, POINTER(structs.MaterialPropertyString)).contents.data.decode("utf-8")
elif p.mType == 4:
arr = cast(p.mData, POINTER(c_int * int(p.mDataLength/sizeof(c_int)) )).contents
value = [x for x in arr]
else:
value = p.mData[:p.mDataLength]
if len(value) == 1:
[value] = value
result[key] = value
return PropertyGetter(result)
def getBGR32(dc, bitmap):
"""
Returns a (raw BGR str, (width, height)) for C{dc}, C{bitmap}.
Guaranteed to be 32-bit. Note that the origin of the returned image is
in the bottom-left corner, and the image has 32-bit line padding.
"""
bmpInfo = bitmap.GetInfo()
width, height = bmpInfo['bmWidth'], bmpInfo['bmHeight']
bmi = BITMAPINFO()
ctypes.memset(ctypes.byref(bmi), 0x00, ctypes.sizeof(bmi))
bmi.bmiHeader.biSize = ctypes.sizeof(BITMAPINFOHEADER)
bmi.bmiHeader.biWidth = width
bmi.bmiHeader.biHeight = height
bmi.bmiHeader.biBitCount = 24
bmi.bmiHeader.biPlanes = 1
bufferLen = height * ((width * 3 + 3) & -4)
pbBits = ctypes.create_string_buffer(bufferLen)
ret = ctypes.windll.gdi32.GetDIBits(
dc.GetHandleAttrib(),
bitmap.GetHandle(),
0,
height,
ctypes.byref(pbBits),
ctypes.pointer(bmi),
win32con.DIB_RGB_COLORS)
if ret == 0:
raise DIBFailed("Return code 0 from GetDIBits")
assert len(pbBits.raw) == bufferLen, len(pbBits.raw)
return pbBits.raw, (width, height)
def run(self):
"""
All the real work happens herein; we can be called in one of three
situations, determined by environment variables. First couple are
during the agent Install process, where the domain.h and namespace
files need to be created. The third case is the real mccoy, where
an agent is actually being started by pmcd/dbpmda and makes use of
libpcp_pmda to talk PCP protocol.
"""
if ('PCP_PYTHON_DOMAIN' in os.environ):
self.domain_write()
elif ('PCP_PYTHON_PMNS' in os.environ):
self.pmns_write(os.environ['PCP_PYTHON_PMNS'])
else:
self.pmns_refresh()
cpmda.pmid_oneline_refresh(self._metric_oneline)
cpmda.pmid_longtext_refresh(self._metric_helptext)
cpmda.indom_oneline_refresh(self._indom_oneline)
cpmda.indom_longtext_refresh(self._indom_helptext)
numindoms = len(self._indomtable)
ibuf = create_string_buffer(numindoms * sizeof(pmdaIndom))
indoms = cast(ibuf, POINTER(pmdaIndom))
for i in xrange(numindoms):
indoms[i] = self._indomtable[i]
nummetrics = len(self._metrictable)
mbuf = create_string_buffer(nummetrics * sizeof(pmdaMetric))
metrics = cast(mbuf, POINTER(pmdaMetric))
for i in xrange(nummetrics):
metrics[i] = self._metrictable[i]
cpmda.pmda_dispatch(ibuf.raw, numindoms, mbuf.raw, nummetrics)
def _set_format(self):
if not self.controls:
return
object_formats = (dinput.DIOBJECTDATAFORMAT * len(self.controls))()
offset = 0
for object_format, control in zip(object_formats, self.controls):
object_format.dwOfs = offset
object_format.dwType = control._type
offset += 4
format = dinput.DIDATAFORMAT()
format.dwSize = ctypes.sizeof(format)
format.dwObjSize = ctypes.sizeof(dinput.DIOBJECTDATAFORMAT)
format.dwFlags = 0
format.dwDataSize = offset
format.dwNumObjs = len(object_formats)
format.rgodf = ctypes.cast(ctypes.pointer(object_formats),
dinput.LPDIOBJECTDATAFORMAT)
self._device.SetDataFormat(format)
prop = dinput.DIPROPDWORD()
prop.diph.dwSize = ctypes.sizeof(prop)
prop.diph.dwHeaderSize = ctypes.sizeof(prop.diph)
prop.diph.dwObj = 0
prop.diph.dwHow = dinput.DIPH_DEVICE
prop.dwData = 64 * ctypes.sizeof(dinput.DIDATAFORMAT)
self._device.SetProperty(dinput.DIPROP_BUFFERSIZE,
ctypes.byref(prop.diph))
def __init__(self, buffer):
super().__init__()
self.checksum = compute_checksum(memoryview(buffer)[:-8])
self.add_option(Metadata, buffer, 0)
offset = sizeof(Metadata)
while offset < len(buffer):
header = OptionHeader.from_buffer_copy(buffer, offset)
if header.size:
option_class = index[header.tag]
if header.size != sizeof(option_class):
raise InvalidSize(
'Option: {!r}, calculated: {}, reported: {}'.format(
option_class, sizeof(option_class), header.size
)
)
self.add_option(option_class, buffer, offset)
offset += sizeof(option_class)
if not hasattr(self, 'cks'):
raise ChecksumNotPresent
if self.checksum != self.cks.value:
raise IncorrectChecksum('calculated: {}, reported: {}'.format(
self.checksum,
self.cks.value
))
def fromdict(cls, credential, flags=0):
unsupported = set(credential.keys()) - SUPPORTED_CREDKEYS
if len(unsupported):
raise ValueError("Unsupported keys: {0}".format(unsupported))
if flags != 0:
raise ValueError("flag != 0 not yet supported")
c_creds = cls()
c_pcreds = PCREDENTIAL(c_creds)
# zero-out memory
ctypes.memset(c_pcreds, 0, ctypes.sizeof(c_creds))
for key in SUPPORTED_CREDKEYS:
if key in credential:
if key != 'CredentialBlob':
setattr(c_creds, key, credential[key])
else:
blob = make_unicode(credential['CredentialBlob'])
blob_data = ctypes.create_unicode_buffer(blob)
# Create_unicode_buffer adds a NULL at the end of the
# string we do not want that.
c_creds.CredentialBlobSize = \
ctypes.sizeof(blob_data) - \
ctypes.sizeof(ctypes.c_wchar)
c_creds.CredentialBlob = ctypes.cast(blob_data, LPBYTE)
return c_creds
def determine_64_bit_int():
"""
The only configuration parameter needed at compile-time is how to
specify a 64-bit signed integer. Python's ctypes module can get us
that information, but it is only available in Python 2.5 or later.
If we can't be absolutely certain, we default to "long long int",
which is correct on most platforms (x86, x86_64). If we find
platforms where this heuristic doesn't work, we may need to
hardcode for them.
"""
try:
try:
import ctypes
except ImportError:
raise ValueError()
if ctypes.sizeof(ctypes.c_longlong) == 8:
return "long long int"
elif ctypes.sizeof(ctypes.c_long) == 8:
return "long int"
elif ctypes.sizeof(ctypes.c_int) == 8:
return "int"
else:
raise ValueError()
except ValueError:
return "long long int"
def parse(cls, client: 'Client'):
tc_type = client.recv(ctypes.sizeof(ctypes.c_byte))
# Decimal or Null
if tc_type == TC_NULL:
return Null.build_c_type(), tc_type
header_class = cls.build_c_header()
buffer = tc_type + client.recv(
ctypes.sizeof(header_class)
- len(tc_type)
)
header = header_class.from_buffer_copy(buffer)
data_type = type(
cls.__name__,
(header_class,),
{
'_pack_': 1,
'_fields_': [
('data', ctypes.c_ubyte * header.length),
],
}
)
buffer += client.recv(
ctypes.sizeof(data_type)
- ctypes.sizeof(header_class)
)
return data_type, buffer
def transaction(self, bytes_to_send):
"""Sends bytes via the SPI bus.
:param bytes_to_send: The bytes to send on the SPI device.
:type bytes_to_send: bytes
:returns: bytes -- returned bytes from SPI device
:raises: InitError
"""
bytes_to_send = _pybytes(bytes_to_send)
# make some buffer space to store reading/writing
wbuffer = ctypes.create_string_buffer(bytes_to_send,
len(bytes_to_send))
rbuffer = ctypes.create_string_buffer(len(bytes_to_send))
# create the spi transfer struct
transfer = spi_ioc_transfer(
tx_buf=ctypes.addressof(wbuffer),
rx_buf=ctypes.addressof(rbuffer),
len=ctypes.sizeof(wbuffer))
if self.spi_transaction_callback is not None:
self.spi_transaction_callback(bytes_to_send)
# send the spi command
ioctl(self.fd, SPI_IOC_MESSAGE(1), transfer)
return _pyord(ctypes.string_at(rbuffer, ctypes.sizeof(rbuffer)))
def __write_header(self, wave_format):
AutoLock(self.lock)
assert(self.hmmio)
hmmio = self.hmmio
ck_root = self.ck_root
ck_child = self.ck_child
mmio_info = self.mmio_info
#Wave chunk
ck_root.fccType = 'WAVE'
ret = winmm.mmioCreateChunk(hmmio, ck_root.ptr(), MMIO_CREATERIFF)
assert(ret == 0)
#Format chunk
ck_child.ckid = 'fmt '
ck_child.cksize = ctypes.sizeof(WaveFormatEx)-ctypes.sizeof(ctypes.c_short) # sizeof(PCMWAVEFORMAT)
ret = winmm.mmioCreateChunk(hmmio, ck_child.ptr(), 0)
assert(ret == 0)
#Write format data
sz = ctypes.sizeof(wave_format)
if (wave_format.wFormatTag != WAVE_FORMAT_PCM):
sz = sz + wave_format.cbSize
ret = winmm.mmioWrite(hmmio, wave_format.ptr(), sz)
assert(ret == sz)
#Back to root
ret = winmm.mmioAscend(hmmio, ck_child.ptr(), 0)
assert(ret == 0)
#Data chunk
ck_child.ckid = "data"
ck_child.cksize = 0
ret = winmm.mmioCreateChunk(self.hmmio, ck_child.ptr(), 0)
assert(ret == 0)
def read_record(buf, offset, tag2struct=defs.tag2struct):
tag = ord(buf[offset])
if tag in tag2struct and tag!=32 and offset+1+ctypes.sizeof(tag2struct[tag])<=len(buf):
struct = tag2struct[tag]
assert struct != defs.FILE_HEADER
record = struct.from_buffer_copy(buf, offset+1)
offset += 1 + ctypes.sizeof(struct)
return tag, record, offset
else:
junkstart, junkend = offset, None
while offset<len(buf):
tag1, tag2 = ord(buf[offset]), None
if tag1 in tag2struct and tag1!=32 and offset+1+ctypes.sizeof(tag2struct[tag1])<=len(buf):
#print>>sys.stderr, "tag1 0x%02x at offset 0x%04x" % (tag1, offset)
struct1 = tag2struct[tag1]
tag2 = ord(buf[offset+1+ctypes.sizeof(struct1)])
if tag2 in tag2struct and tag2!=32:
junkend = offset
if junkend is not None:
tag, struct = tag1, struct1
#print>>sys.stderr, "Tag 0x%02x at offset 0x%04x, preceded by junk: %s" % (tag, offset, hexlify(buf[junkstart:junkend]))
#print "Tag 0x%02x at offset 0x%04x, preceded by junk: %s" % (tag, offset, hexlify(buf[junkstart:junkend]))
break
offset += 1
else:
junkend = len(buf)
#print>>sys.stderr, "File ends with junk: %s" % (hexlify(buf[junkstart:junkend]))
struct = ReprBytes("SUSPECTED_JUNK", junkend-junkstart)
record = struct.from_buffer_copy(buf, junkstart)
return None, record, offset
def _setup_ctypes_cache():
from pypy.rpython.lltypesystem import rffi
_ctypes_cache.update({
lltype.Signed: ctypes.c_long,
lltype.Unsigned: ctypes.c_ulong,
lltype.Char: ctypes.c_ubyte,
rffi.DOUBLE: ctypes.c_double,
rffi.FLOAT: ctypes.c_float,
rffi.LONGDOUBLE: ctypes.c_longdouble,
rffi.SIGNEDCHAR: ctypes.c_byte,
rffi.UCHAR: ctypes.c_ubyte,
rffi.SHORT: ctypes.c_short,
rffi.USHORT: ctypes.c_ushort,
rffi.INT: ctypes.c_int,
rffi.INT_real: ctypes.c_int,
rffi.UINT: ctypes.c_uint,
rffi.LONG: ctypes.c_long,
rffi.ULONG: ctypes.c_ulong,
rffi.LONGLONG: ctypes.c_longlong,
rffi.ULONGLONG: ctypes.c_ulonglong,
rffi.SIZE_T: ctypes.c_size_t,
lltype.Bool: ctypes.c_long, # XXX
llmemory.Address: ctypes.c_void_p,
llmemory.GCREF: ctypes.c_void_p,
llmemory.WeakRef: ctypes.c_void_p, # XXX
})
# for unicode strings, do not use ctypes.c_wchar because ctypes
# automatically converts arrays into unicode strings.
# Pick the unsigned int that has the same size.
if ctypes.sizeof(ctypes.c_wchar) == ctypes.sizeof(ctypes.c_uint16):
_ctypes_cache[lltype.UniChar] = ctypes.c_uint16
else:
_ctypes_cache[lltype.UniChar] = ctypes.c_uint32
def test_dirent():
dirent = configure.getstruct("struct dirent",
"""
struct dirent /* for this example only, not the exact dirent */
{
long d_ino;
int d_off;
unsigned short d_reclen;
char d_name[32];
};
""",
[("d_reclen", ctypes.c_ushort)])
assert issubclass(dirent, ctypes.Structure)
ssize = (ctypes.sizeof(ctypes.c_long) +
ctypes.sizeof(ctypes.c_int) +
ctypes.sizeof(ctypes.c_ushort) +
32)
extra_padding = (-ssize) % ctypes.alignment(ctypes.c_long)
assert dirent._fields_ == [('_alignment', ctypes.c_long),
('_pad0', ctypes.c_char),
('_pad1', ctypes.c_char),
('_pad2', ctypes.c_char),
('_pad3', ctypes.c_char),
('d_reclen', ctypes.c_ushort),
] + [
('_pad%d' % n, ctypes.c_char)
for n in range(4, 4+32+extra_padding)]
assert ctypes.sizeof(dirent) == ssize + extra_padding
assert ctypes.alignment(dirent) == ctypes.alignment(ctypes.c_long)
def DerefPointer(pointer, processID):
# print 'POINTER!!!!! %s, pointer points to address (/has value): %s (%s)' % (type(pointer.contents), ctypes.addressof(pointer.contents), hex(ctypes.addressof(pointer.contents)))
# res = []
# res.append('%s = %r' % (fieldName, pointer))
# res.append('\n')
try:
# ctypes.addressof(value.contents)
if ctypes.addressof(pointer.contents) != 0:
# if bool(pointer.contents):
# contents = pointer.contents
pointedAtType = type(pointer.contents)
typeInstanceInLocalMem = pointedAtType()
contents = ReadMem(ctypes.addressof(pointer.contents), ctypes.sizeof(pointer.contents), None, processID)
fit = min(len(contents), ctypes.sizeof(typeInstanceInLocalMem))
# Copy
ctypes.memmove(ctypes.addressof(typeInstanceInLocalMem), contents, fit)
return typeInstanceInLocalMem
return contents
else:
return None
except:
pass
return None
def __init__(self, buffer_size=1024):
"""Builds the tracing session properties.
Parameters
---------
buffer_size: int
the amount of memory allocated for each trace buffer
"""
# allocate buffer for the trace
self.max_string_len = 1024
self.buff_size = sizeof(EVENT_TRACE_PROPERTIES) + 2 * sizeof(c_wchar) * self.max_string_len
self._buff = (c_char * self.buff_size)()
self._props = cast(pointer(self._buff), POINTER(EVENT_TRACE_PROPERTIES))
# set trace properties
self._props.contents.wnode.buffer_size = self.buff_size
self._props.contents.wnode.guid = KERNEL_TRACE_CONTROL_GUID
self._props.contents.wnode.flags = WNODE_FLAG_TRACED_GUID
self._props.contents.logger_name_offset = sizeof(EVENT_TRACE_PROPERTIES)
self._props.contents.log_file_name_offset = 0
self._props.contents.log_file_mode = PROCESS_TRACE_MODE_REAL_TIME
self._props.contents.buffer_size = buffer_size
def _get_taskinfo(self):
integer_t = ctypes.c_int
natural_t = ctypes.c_uint
vm_size_t = ctypes.c_ulong
class time_value_t(ctypes.Structure):
_fields_ = [("seconds", integer_t),
("microseconds", integer_t)]
def __repr__(self):
return "%s.%s" % (self.seconds, self.microseconds)
policy_t = ctypes.c_int
class task_basic_info(ctypes.Structure):
_pack_ = 4
_fields_ = [("suspend_count", integer_t),
("virtual_size", vm_size_t),
("resident_size", vm_size_t),
("user_time", time_value_t),
("system_time", time_value_t),
("policy", policy_t)]
def __repr__(self):
return repr(dict((key, getattr(self, key))
for key in dir(self)
if not key.startswith("_")))
kern_return_t = ctypes.c_int
mach_port_t = natural_t
task_name_t = ctypes.c_uint
task_flavor_t = ctypes.c_uint
task_info_t = ctypes.POINTER(ctypes.c_int)
mach_msg_type_number_t = natural_t
TASK_BASIC_INFO_COUNT = ctypes.sizeof(
task_basic_info) / ctypes.sizeof(natural_t)
TASK_BASIC_INFO = 5
KERN_SUCCESS = 0
libkern = ctypes.CDLL("/usr/lib/system/libsystem_kernel.dylib")
task_info = libkern.task_info
task_info.restype = kern_return_t
task_info.argtypes = [task_name_t,
task_flavor_t,
ctypes.POINTER(task_basic_info),
ctypes.POINTER(mach_msg_type_number_t)]
mach_task_self = libkern.mach_task_self
mach_task_self.restype = mach_port_t
mach_task_self.argtypes = []
ti = task_basic_info()
count = mach_msg_type_number_t(TASK_BASIC_INFO_COUNT)
kr = task_info(mach_task_self(), TASK_BASIC_INFO,
ctypes.byref(ti),
ctypes.byref(count))
if kr != KERN_SUCCESS:
return None
return ti
def ReadStructureFromOtherProcessMemory(address, structureType, processID): # Buffer to store the read bytes. outBufferAddr = ctypes.create_string_buffer(ctypes.sizeof(structureType)) # bytesRead = ctypes.c_size_t() c_structure = structureType() # Allocate a structure in the *current* (!) process to mirror the structure from the *other* process. ReadMem(address, ctypes.sizeof(structureType), ctypes.byref(c_structure), processID) return c_structure
def _get_properties(properties, length):
"""
Convenience Function to get the material properties as a dict
and values in a python format.
"""
result = {}
#read all properties
for p in [properties[i] for i in range(length)]:
#the name
p = p.contents
key = str(p.mKey.data)
#the data
from ctypes import POINTER, cast, c_int, c_float, sizeof
if p.mType == 1:
arr = cast(p.mData, POINTER(c_float * int(p.mDataLength/sizeof(c_float)) )).contents
value = numpy.array([x for x in arr])
elif p.mType == 3: #string can't be an array
value = cast(p.mData, POINTER(structs.String)).contents.data
elif p.mType == 4:
arr = cast(p.mData, POINTER(c_int * int(p.mDataLength/sizeof(c_int)) )).contents
value = numpy.array([x for x in arr])
else:
value = p.mData[:p.mDataLength]
result[key] = value
return result
def decode(self, file, filename):
if not file:
file = open(filename, 'rb')
bytes = file.read()
buffer = ctypes.c_buffer(bytes)
if bytes[:2] != 'BM':
raise ImageDecodeException('Not a Windows bitmap file: %r' %
(filename or file))
file_header = to_ctypes(buffer, 0, BITMAPFILEHEADER)
bits_offset = file_header.bfOffBits
info_header_offset = ctypes.sizeof(BITMAPFILEHEADER)
info_header = to_ctypes(buffer, info_header_offset, BITMAPINFOHEADER)
palette_offset = info_header_offset + info_header.biSize
if info_header.biSize < ctypes.sizeof(BITMAPINFOHEADER):
raise ImageDecodeException('Unsupported BMP type: %r' %
(filename or file))
width = info_header.biWidth
height = info_header.biHeight
if width <= 0 or info_header.biPlanes != 1:
raise ImageDecodeException('BMP file has corrupt parameters: %r' %
(filename or file))
pitch_sign = height < 0 and -1 or 1
height = abs(height)
compression = info_header.biCompression
if compression not in (BI_RGB, BI_BITFIELDS):
raise ImageDecodeException('Unsupported compression: %r' %
(filename or file))
clr_used = 0
bitcount = info_header.biBitCount
if bitcount == 1:
pitch = (width + 7) // 8
bits_type = ctypes.c_ubyte
decoder = decode_1bit
elif bitcount == 4:
pitch = (width + 1) // 2
bits_type = ctypes.c_ubyte
decoder = decode_4bit
elif bitcount == 8:
bits_type = ctypes.c_ubyte
pitch = width
decoder = decode_8bit
elif bitcount == 16:
pitch = width * 2
bits_type = ctypes.c_uint16
decoder = decode_bitfields
elif bitcount == 24:
pitch = width * 3
bits_type = ctypes.c_ubyte
decoder = decode_24bit
elif bitcount == 32:
pitch = width * 4
if compression == BI_RGB:
decoder = decode_32bit_rgb
bits_type = ctypes.c_ubyte
elif compression == BI_BITFIELDS:
decoder = decode_bitfields
bits_type = ctypes.c_uint32
else:
raise ImageDecodeException('Unsupported compression: %r' %
(filename or file))
else:
raise ImageDecodeException('Unsupported bit count %d: %r' %
(bitcount, filename or file))
pitch = (pitch + 3) & ~3
packed_width = pitch // ctypes.sizeof(bits_type)
if bitcount < 16 and compression == BI_RGB:
clr_used = info_header.biClrUsed or (1 << bitcount)
palette = to_ctypes(buffer, palette_offset, RGBQUAD * clr_used)
bits = to_ctypes(buffer, bits_offset,
bits_type * packed_width * height)
return decoder(bits, palette, width, height, pitch, pitch_sign)
elif bitcount >= 16 and compression == BI_RGB:
bits = to_ctypes(buffer, bits_offset,
bits_type * (packed_width * height))
return decoder(bits, None, width, height, pitch, pitch_sign)
elif compression == BI_BITFIELDS:
if info_header.biSize >= ctypes.sizeof(BITMAPV4HEADER):
info_header = to_ctypes(buffer, info_header_offset,
BITMAPV4HEADER)
r_mask = info_header.bV4RedMask
g_mask = info_header.bV4GreenMask
b_mask = info_header.bV4BlueMask
else:
fields_offset = info_header_offset + \
ctypes.sizeof(BITMAPINFOHEADER)
fields = to_ctypes(buffer, fields_offset, RGBFields)
r_mask = fields.red
g_mask = fields.green
b_mask = fields.blue
class _BitsArray(ctypes.LittleEndianStructure):
_pack_ = 1
_fields_ = [
('data', bits_type * packed_width * height),
]
bits = to_ctypes(buffer, bits_offset, _BitsArray).data
return decoder(bits, r_mask, g_mask, b_mask, width, height, pitch,
pitch_sign)
def ensure_size(self, size):
while ctypes.sizeof(self.buf) - self.wpos < size:
ctypes.resize(self.buf, ctypes.sizeof(self.buf) * 2)
def test_dns_record_flags_size():
assert ctypes.sizeof(gdef.DNS_RECORD_FLAGS) == 4
class CTypesEncoder(json.JSONEncoder):
def default(self, obj):
if isinstance(obj, ctypes.Structure):
jsonDict = {}
for name in obj.__dict__:
value = getattr(obj, name)
jsonDict[name] = value
for field in obj._fields_:
name, type = field
value = getattr(obj, name)
jsonDict[name] = value
return jsonDict
elif isinstance(obj, ctypes.Array):
return [ item for item in obj ]
print obj.__class__
return json.JSONEncoder.default(self, obj)
header.data_offset = ctypes.sizeof(HEADER) + ctypes.sizeof(attrib_desc_t)
print CTypesEncoder().encode( [ header, attrib_desc ] )
print ""
def xtf_read_gen(
path: str,
types: List[XTFHeaderType] = None
) -> Generator[Union[XTFFileHeader, XTFPacket], None, None]:
"""
Generator object which iterates over the XTF file, return first the file header and then subsequent packets
:param path: The path to the XTF file
:param types: Optional list of XTFHeaderTypes to keep. Default (None) returns all types. Can improve performance
:return: None
"""
# Read index file if it exists
(path_root, _) = splitext(path)
path_idx = path_root + '.pyxtf_idx'
has_idx = isfile(path_idx)
if has_idx:
with open(path_idx, 'rb') as f_idx:
xtf_idx = pickle.load(
f_idx) # type: Dict[XTFHeaderType, List[int]]
else:
xtf_idx = {}
# Read XTF file
with open(path, 'rb') as f:
# Read initial file header
file_header = XTFFileHeader.create_from_buffer(buffer=f)
n_channels = file_header.channel_count()
if n_channels > 6:
raise NotImplementedError(
"Support for more than 6 channels not implemented.")
# Return the file header before starting packet iteration
yield file_header
# Loop through XTF packets and handle according to type
if has_idx:
# Only return packets that matches types arg (if None, return all)
for packet_start_loc, p_headertype in xtf_idx_pos_iter(
xtf_idx, types):
f.seek(packet_start_loc)
# Get the class associated with this header type (if any)
# How to read and construct each type is implemented in the class (default impl. in XTFBase.__new__)
p_class = XTFPacketClasses.get(p_headertype, None)
if p_class:
p_header = p_class.create_from_buffer(
buffer=f, file_header=file_header)
yield p_header
else:
warning_str = 'Unsupported packet type \'{}\' encountered'.format(
str(p_headertype))
warn(warning_str)
else:
# Preallocate, as it is assigned to at every iteration
p_start = XTFPacketStart()
while True:
# Test for file end without advancing the file position
if not f.peek(1):
break
# Save packet start location
packet_start_loc = f.tell()
# Read the first few shared packet bytes without advancing file pointer
bytes_read = f.readinto(p_start)
if bytes_read < ctypes.sizeof(XTFPacketStart):
raise RuntimeError(
'XTF file shorter than expected while reading packet.')
# Only return packets that matches types arg (if None, return all)
p_headertype = XTFHeaderType(p_start.HeaderType)
if not types or p_headertype in types:
f.seek(packet_start_loc)
# Get the class associated with this header type (if any)
# How to read and construct each type is implemented in the class (default impl. in XTFBase.__new__)
p_class = XTFPacketClasses.get(p_headertype, None)
if p_class:
p_header = p_class.create_from_buffer(
buffer=f, file_header=file_header)
yield p_header
else:
warning_str = 'Unsupported packet type \'{}\' encountered'.format(
str(p_headertype))
warn(warning_str)
# Skip over any data padding before next iteration
f.seek(packet_start_loc + p_start.NumBytesThisRecord)
# Store index file information
try:
xtf_idx[p_headertype].append(packet_start_loc)
except KeyError:
xtf_idx[p_headertype] = [packet_start_loc]
# Pickle index file
with open(path_idx, mode='wb') as f_idx:
pickle.dump(xtf_idx, f_idx)
return
def _get_total_physmem():
retval = None
try:
if IS_WIN:
import ctypes
kernel32 = ctypes.windll.kernel32
c_ulong = ctypes.c_ulong
class MEMORYSTATUS(ctypes.Structure):
_fields_ = [('dwLength', c_ulong), ('dwMemoryLoad', c_ulong),
('dwTotalPhys', c_ulong), ('dwAvailPhys', c_ulong),
('dwTotalPageFile', c_ulong),
('dwAvailPageFile', c_ulong),
('dwTotalVirtual', c_ulong),
('dwAvailVirtual', c_ulong)]
memory_status = MEMORYSTATUS()
memory_status.dwLength = ctypes.sizeof(MEMORYSTATUS)
kernel32.GlobalMemoryStatus(ctypes.byref(memory_status))
retval = memory_status.dwTotalPhys
else:
retval = 1024 * int(
re.search(r"(?i)MemTotal:\s+(\d+)\skB",
open("/proc/meminfo").read()).group(1))
except:
pass
if not retval:
try:
import psutil
retval = psutil.virtual_memory().total
except:
pass
if not retval:
try:
retval = int(
re.search(r"real mem(ory)?\s*=\s*(\d+) ",
open("/var/run/dmesg.boot").read()).group(2))
except:
pass
if not retval:
try:
retval = int(
re.search(
r"hw\.(physmem|memsize):\s*(\d+)",
subprocess.check_output(
"sysctl hw", shell=True,
stderr=subprocess.STDOUT)).group(2))
except:
pass
if not retval:
try:
retval = 1024 * int(
re.search(
r"\s+(\d+) K total memory",
subprocess.check_output(
"vmstat -s", shell=True,
stderr=subprocess.STDOUT)).group(1))
except:
pass
if not retval:
try:
retval = int(
re.search(
r"Mem:\s+(\d+)",
subprocess.check_output(
"free -b", shell=True,
stderr=subprocess.STDOUT)).group(1))
except:
pass
if not retval:
try:
retval = 1024 * int(
re.search(
r"KiB Mem:\s*\x1b[^\s]+\s*(\d+)",
subprocess.check_output(
"top -n 1", shell=True,
stderr=subprocess.STDOUT)).group(1))
except:
pass
return retval
def evaluate(text):
b = text if isinstance(text, bytes) else bytes(str(text), 'utf-8')
pt = ctypes.create_string_buffer(b)
return przetak.evaluate(GoString(pt.raw, ctypes.sizeof(pt)))
OnigCodePoint = ctypes.c_uint
class OnigRegexType(ctypes.Structure):
_fields_ = []
regex_t = OnigRegexType
OnigRegex = ctypes.POINTER(OnigRegexType)
try:
# Python 2.7
_c_ssize_t = ctypes.c_ssize_t
except AttributeError:
# Python 2.6
if ctypes.sizeof(ctypes.c_int) == ctypes.sizeof(ctypes.c_void_p):
_c_ssize_t = ctypes.c_int
elif ctypes.sizeof(ctypes.c_long) == ctypes.sizeof(ctypes.c_void_p):
_c_ssize_t = ctypes.c_long
elif ctypes.sizeof(ctypes.c_longlong) == ctypes.sizeof(ctypes.c_void_p):
_c_ssize_t = ctypes.c_longlong
class OnigRegion(ctypes.Structure):
_fields_ = [
("allocated", ctypes.c_int),
("num_regs", ctypes.c_int),
("beg", ctypes.POINTER(_c_ssize_t)),
("end", ctypes.POINTER(_c_ssize_t)),
("history_root", ctypes.c_void_p),
]
WEIGHT_TYPE = np.float64
INVTT_TYPE = np.float64
TIMESTAMP_TYPE = np.float64
PSD_TYPE = np.float64
try:
_mappraiser = ct.CDLL("libmappraiser.so")
except OSError:
path = ctu.find_library("mappraiser")
if path is not None:
_mappraiser = ct.CDLL(path)
available = _mappraiser is not None
try:
if MPI._sizeof(MPI.Comm) == ct.sizeof(ct.c_int):
MPI_Comm = ct.c_int
else:
MPI_Comm = ct.c_void_p
except Exception as e:
raise Exception(
'Failed to set the portable MPI communicator datatype: "{}". '
"MPI4py is probably too old. ".format(e))
def encode_comm(comm):
comm_ptr = MPI._addressof(comm)
return MPI_Comm.from_address(comm_ptr)
_mappraiser.MLmap.restype = None
def to_ctypes(buffer, offset, type):
if offset + ctypes.sizeof(type) > len(buffer):
raise ImageDecodeException('BMP file is truncated')
ptr = ptr_add(ctypes.pointer(buffer), offset)
return ctypes.cast(ptr, ctypes.POINTER(type)).contents
def SendInput(*inputs):
nInputs = len(inputs)
LPINPUT = INPUT * nInputs
pInputs = LPINPUT(*inputs)
cbSize = ctypes.c_int(ctypes.sizeof(INPUT))
return ctypes.windll.user32.SendInput(nInputs, pInputs, cbSize)
def __init__(self, options, minidump_name):
self.minidump_name = minidump_name
self.minidump_file = open(minidump_name, "r")
self.minidump = mmap.mmap(self.minidump_file.fileno(), 0,
mmap.MAP_PRIVATE)
self.header = MINIDUMP_HEADER.Read(self.minidump, 0)
if self.header.signature != MinidumpReader._HEADER_MAGIC:
print >> sys.stderr, "Warning: unsupported minidump header magic"
DebugPrint(self.header)
directories = []
offset = self.header.stream_directories_rva
for _ in xrange(self.header.stream_count):
directories.append(MINIDUMP_DIRECTORY.Read(self.minidump, offset))
offset += MINIDUMP_DIRECTORY.size
self.arch = None
self.exception = None
self.exception_context = None
self.memory_list = None
self.memory_list64 = None
self.thread_map = {}
# Find MDRawSystemInfo stream and determine arch.
for d in directories:
if d.stream_type == MD_SYSTEM_INFO_STREAM:
system_info = MINIDUMP_RAW_SYSTEM_INFO.Read(
self.minidump, d.location.rva)
self.arch = system_info.processor_architecture
assert self.arch in [
MD_CPU_ARCHITECTURE_AMD64, MD_CPU_ARCHITECTURE_X86
]
assert not self.arch is None
for d in directories:
DebugPrint(d)
if d.stream_type == MD_EXCEPTION_STREAM:
self.exception = MINIDUMP_EXCEPTION_STREAM.Read(
self.minidump, d.location.rva)
DebugPrint(self.exception)
if self.arch == MD_CPU_ARCHITECTURE_X86:
self.exception_context = MINIDUMP_CONTEXT_X86.Read(
self.minidump, self.exception.thread_context.rva)
elif self.arch == MD_CPU_ARCHITECTURE_AMD64:
self.exception_context = MINIDUMP_CONTEXT_AMD64.Read(
self.minidump, self.exception.thread_context.rva)
DebugPrint(self.exception_context)
elif d.stream_type == MD_THREAD_LIST_STREAM:
thread_list = MINIDUMP_THREAD_LIST.Read(
self.minidump, d.location.rva)
assert ctypes.sizeof(thread_list) == d.location.data_size
DebugPrint(thread_list)
for thread in thread_list.threads:
DebugPrint(thread)
self.thread_map[thread.id] = thread
elif d.stream_type == MD_MEMORY_LIST_STREAM:
print >> sys.stderr, "Warning: not a full minidump"
assert self.memory_list is None
self.memory_list = MINIDUMP_MEMORY_LIST.Read(
self.minidump, d.location.rva)
assert ctypes.sizeof(self.memory_list) == d.location.data_size
DebugPrint(self.memory_list)
elif d.stream_type == MD_MEMORY_64_LIST_STREAM:
assert self.memory_list64 is None
self.memory_list64 = MINIDUMP_MEMORY_LIST64.Read(
self.minidump, d.location.rva)
assert ctypes.sizeof(
self.memory_list64) == d.location.data_size
DebugPrint(self.memory_list64)
def Keyboard(code, flags=0):
input = Input(KeybdInput(code, flags))
ctypes.windll.user32.SendInput(1, ctypes.pointer(input), ctypes.sizeof(input))
return input
HANDLED_TYPES = (_bytes.unicode, )
@classmethod
def from_param(cls, value, typeCode=None):
# TODO: raise CopyError if the flag is set!
converted = _bytes.as_8_bit(value)
result = StringHandler.from_param(converted)
if converted is not value:
if ERROR_ON_COPY:
raise error.CopyError(
"""Unicode string passed, cannot copy with ERROR_ON_COPY set, please use 8-bit strings"""
)
result._temporary_array_ = converted
return result
def asArray(self, value, typeCode=None):
value = _bytes.as_8_bit(value)
return StringHandler.asArray(self, value, typeCode=typeCode)
BYTE_SIZES = {
GL_1_1.GL_DOUBLE: ctypes.sizeof(_types.GLdouble),
GL_1_1.GL_FLOAT: ctypes.sizeof(_types.GLfloat),
GL_1_1.GL_INT: ctypes.sizeof(_types.GLint),
GL_1_1.GL_SHORT: ctypes.sizeof(_types.GLshort),
GL_1_1.GL_UNSIGNED_BYTE: ctypes.sizeof(_types.GLubyte),
GL_1_1.GL_UNSIGNED_SHORT: ctypes.sizeof(_types.GLshort),
GL_1_1.GL_BYTE: ctypes.sizeof(_types.GLbyte),
GL_1_1.GL_UNSIGNED_INT: ctypes.sizeof(_types.GLuint),
}
ERROR_IO_PENDING = 997
ERROR_INVALID_USER_BUFFER = 1784
READ_CONTROL = 0x00020000
STANDARD_RIGHTS_READ = READ_CONTROL
KEY_QUERY_VALUE = 0x0001
HKEY_LOCAL_MACHINE = 0x80000002
SYNCHRONIZE = 0x00100000
KEY_ENUMERATE_SUB_KEYS = 0x0008
KEY_NOTIFY = 0x0010
KEY_READ = ((STANDARD_RIGHTS_READ | KEY_QUERY_VALUE | KEY_ENUMERATE_SUB_KEYS
| KEY_NOTIFY) & (~SYNCHRONIZE))
KEY_EXECUTE = KEY_READ & ~SYNCHRONIZE
if ctypes.sizeof(ctypes.c_void_p) == 8:
ULONG_PTR = ctypes.c_int64
else:
ULONG_PTR = ctypes.c_ulong
#Structyres.
class DUMMYSTRUCTNAME(ctypes.Structure):
# pylint: disable=too-few-public-methods
_fields_ = [('Offset', ctypes.wintypes.DWORD),\
('OffsetHigh', ctypes.wintypes.DWORD),]
class DUMMYUNIONNAME(ctypes.Union):
# pylint: disable=too-few-public-methods
_fields_ = [('_0', DUMMYSTRUCTNAME),\
def Hardware(message, parameter=0):
input = Input(HardwareInput(message, parameter))
ctypes.windll.user32.SendInput(1, ctypes.pointer(input), ctypes.sizeof(input))
return input
the spaces replaced by underscores.
"""
return p_name.lower().replace(" ", "_")
class DCAMException(halExceptions.HardwareException):
pass
#
# Initialization
#
dcam = ctypes.windll.dcamapi
paraminit = DCAMAPI_INIT(0, 0, 0, 0, None, None)
paraminit.size = ctypes.sizeof(paraminit)
error_code = dcam.dcamapi_init(ctypes.byref(paraminit))
if (error_code != DCAMERR_NOERROR):
raise DCAMException("DCAM initialization failed with error code " +
str(error_code))
n_cameras = paraminit.iDeviceCount
class HCamData(object):
"""
Hamamatsu camera data object.
Initially I tried to use create_string_buffer() to allocate storage for the
data from the camera but this turned out to be too slow. The software
kept falling behind the camera and create_string_buffer() seemed to be the
def Mouse(flags, x=0, y=0, data=0):
input = Input(MouseInput(flags, x, y, data))
ctypes.windll.user32.SendInput(1, ctypes.pointer(input), ctypes.sizeof(input))
return input
def _shutdown_with_windows_restart_manager(self, pid):
""" Shut down a process using the Windows Restart Manager.
When Windows shuts down, it uses a protocol including the
WM_QUERYENDSESSION and WM_ENDSESSION messages to give
applications a chance to shut down safely. The best way to
simulate this is via the Restart Manager, which allows a process
(such as an installer) to use the same mechanism to shut down
any other processes which are using registered resources.
This function starts a Restart Manager session, registers the
process as a resource, and shuts down the process.
:param pid: The process id (int) of the process to shutdown
:raises: WindowsError: if a Windows API call fails
"""
import ctypes
from ctypes import Structure, POINTER, WINFUNCTYPE, windll, pointer, WinError
from ctypes.wintypes import HANDLE, DWORD, BOOL, WCHAR, UINT, ULONG, LPCWSTR
# set up Windows SDK types
OpenProcess = windll.kernel32.OpenProcess
OpenProcess.restype = HANDLE
OpenProcess.argtypes = [
DWORD, # dwDesiredAccess
BOOL, # bInheritHandle
DWORD
] # dwProcessId
PROCESS_QUERY_INFORMATION = 0x0400
class FILETIME(Structure):
_fields_ = [('dwLowDateTime', DWORD), ('dwHighDateTime', DWORD)]
LPFILETIME = POINTER(FILETIME)
GetProcessTimes = windll.kernel32.GetProcessTimes
GetProcessTimes.restype = BOOL
GetProcessTimes.argtypes = [
HANDLE, # hProcess
LPFILETIME, # lpCreationTime
LPFILETIME, # lpExitTime
LPFILETIME, # lpKernelTime
LPFILETIME
] # lpUserTime
ERROR_SUCCESS = 0
class RM_UNIQUE_PROCESS(Structure):
_fields_ = [('dwProcessId', DWORD), ('ProcessStartTime', FILETIME)]
RmStartSession = windll.rstrtmgr.RmStartSession
RmStartSession.restype = DWORD
RmStartSession.argtypes = [
POINTER(DWORD), # pSessionHandle
DWORD, # dwSessionFlags
POINTER(WCHAR)
] # strSessionKey
class GUID(ctypes.Structure):
_fields_ = [('Data1', ctypes.c_ulong), ('Data2', ctypes.c_ushort),
('Data3', ctypes.c_ushort),
('Data4', ctypes.c_ubyte * 8)]
CCH_RM_SESSION_KEY = ctypes.sizeof(GUID) * 2
RmRegisterResources = windll.rstrtmgr.RmRegisterResources
RmRegisterResources.restype = DWORD
RmRegisterResources.argtypes = [
DWORD, # dwSessionHandle
UINT, # nFiles
POINTER(LPCWSTR), # rgsFilenames
UINT, # nApplications
POINTER(RM_UNIQUE_PROCESS), # rgApplications
UINT, # nServices
POINTER(LPCWSTR)
] # rgsServiceNames
RM_WRITE_STATUS_CALLBACK = WINFUNCTYPE(None, UINT)
RmShutdown = windll.rstrtmgr.RmShutdown
RmShutdown.restype = DWORD
RmShutdown.argtypes = [
DWORD, # dwSessionHandle
ULONG, # lActionFlags
RM_WRITE_STATUS_CALLBACK
] # fnStatus
RmEndSession = windll.rstrtmgr.RmEndSession
RmEndSession.restype = DWORD
RmEndSession.argtypes = [DWORD] # dwSessionHandle
# Get the info needed to uniquely identify the process
hProc = OpenProcess(PROCESS_QUERY_INFORMATION, False, pid)
if not hProc:
raise WinError()
creationTime = FILETIME()
exitTime = FILETIME()
kernelTime = FILETIME()
userTime = FILETIME()
if not GetProcessTimes(hProc, pointer(creationTime), pointer(exitTime),
pointer(kernelTime), pointer(userTime)):
raise WinError()
# Start the Restart Manager Session
dwSessionHandle = DWORD()
sessionKeyType = WCHAR * (CCH_RM_SESSION_KEY + 1)
sessionKey = sessionKeyType()
if RmStartSession(pointer(dwSessionHandle), 0,
sessionKey) != ERROR_SUCCESS:
raise WinError()
try:
UProcs_count = 1
UProcsArrayType = RM_UNIQUE_PROCESS * UProcs_count
UProcs = UProcsArrayType(RM_UNIQUE_PROCESS(pid, creationTime))
# Register the process as a resource
if RmRegisterResources(dwSessionHandle, 0, None, UProcs_count,
UProcs, 0, None) != ERROR_SUCCESS:
raise WinError()
# Shut down all processes using registered resources
if RmShutdown(
dwSessionHandle, 0,
ctypes.cast(None,
RM_WRITE_STATUS_CALLBACK)) != ERROR_SUCCESS:
raise WinError()
finally:
RmEndSession(dwSessionHandle)
def newFrames(self):
"""
Return a list of the ids of all the new frames since the last check.
Returns an empty list if the camera has already stopped and no frames
are available.
This will block waiting for at least one new frame.
"""
captureStatus = ctypes.c_int32(0)
self.checkStatus(
dcam.dcamcap_status(self.camera_handle,
ctypes.byref(captureStatus)))
# Wait for a new frame if the camera is acquiring.
if captureStatus.value == DCAMCAP_STATUS_BUSY:
paramstart = DCAMWAIT_START(
0, 0, DCAMWAIT_CAPEVENT_FRAMEREADY | DCAMWAIT_CAPEVENT_STOPPED,
100)
paramstart.size = ctypes.sizeof(paramstart)
self.checkStatus(
dcam.dcamwait_start(self.wait_handle,
ctypes.byref(paramstart)),
"dcamwait_start")
# Check how many new frames there are.
paramtransfer = DCAMCAP_TRANSFERINFO(0, DCAMCAP_TRANSFERKIND_FRAME, 0,
0)
paramtransfer.size = ctypes.sizeof(paramtransfer)
self.checkStatus(
dcam.dcamcap_transferinfo(self.camera_handle,
ctypes.byref(paramtransfer)),
"dcamcap_transferinfo")
cur_buffer_index = paramtransfer.nNewestFrameIndex
cur_frame_number = paramtransfer.nFrameCount
# Check that we have not acquired more frames than we can store in our buffer.
# Keep track of the maximum backlog.
backlog = cur_frame_number - self.last_frame_number
if (backlog > self.number_image_buffers):
print(
">> Warning! hamamatsu camera frame buffer overrun detected!")
if (backlog > self.max_backlog):
self.max_backlog = backlog
self.last_frame_number = cur_frame_number
# Create a list of the new frames.
new_frames = []
if (cur_buffer_index < self.buffer_index):
for i in range(self.buffer_index + 1, self.number_image_buffers):
new_frames.append(i)
for i in range(cur_buffer_index + 1):
new_frames.append(i)
else:
for i in range(self.buffer_index, cur_buffer_index):
new_frames.append(i + 1)
self.buffer_index = cur_buffer_index
if self.debug:
print(new_frames)
return new_frames
def CMSG_SPACE(length): # bits/socket.h
ret = CMSG_ALIGN(length).value + CMSG_ALIGN(ctypes.sizeof(cmsghdr)).value
return ctypes.c_size_t(ret)
import struct
class InotifyEvent(ctypes.Structure):
_fields_ = [
("wd", c_int),
("mask", c_uint32),
("cookie", c_uint32),
("len", c_uint32),
("name", c_char_p),
]
s_size = 16
# default 2048 events
INOTIFY_EVENT_BUFFER_SIZE = 2048 * (ctypes.sizeof(InotifyEvent) + s_size)
event_types = {
"IN_CLOSE_WRITE": 0x00000008,
"IN_CREATE": 0x00000100,
"IN_MOVED_FROM": 0x00000040,
"IN_MOVED_TO": 0x00000080,
"IN_DELETE": 0x00000200,
"IN_DELETE_SELF": 0x00000400,
"IN_IGNORED": 0x8000
}
IN_NONBLOCK = 0x00004000
def parse_inotify_buffer(event_buffer):
def CMSG_LEN(length):
sizeof_cmshdr = ctypes.sizeof(cmsghdr)
return ctypes.c_size_t(CMSG_ALIGN(sizeof_cmshdr).value + length)
def __init__(self):
Structure.__init__(self)
self.cb = sizeof(self)
class MPIMsg(CompositeObject):
_C_field_bufs = 'bufs'
_C_field_bufg = 'bufg'
_C_field_sizes = 'sizes'
_C_field_rrecv = 'rrecv'
_C_field_rsend = 'rsend'
if MPI._sizeof(MPI.Request) == sizeof(c_int):
c_mpirequest_p = type('MPI_Request', (c_int,), {})
else:
c_mpirequest_p = type('MPI_Request', (c_void_p,), {})
fields = [
(_C_field_bufs, c_void_p),
(_C_field_bufg, c_void_p),
(_C_field_sizes, POINTER(c_int)),
(_C_field_rrecv, c_mpirequest_p),
(_C_field_rsend, c_mpirequest_p),
]
def __init__(self, name, target, halos, language=None):
self._target = target
self._halos = halos
self._language = language
super().__init__(name, 'msg', self.fields)
# Required for buffer allocation/deallocation before/after jumping/returning
# to/from C-land
self._allocator = default_allocator(language)
self._memfree_args = []
def __del__(self):
self._C_memfree()
def _C_memfree(self):
# Deallocate the MPI buffers
for i in self._memfree_args:
self._allocator.free(*i)
self._memfree_args[:] = []
def __value_setup__(self, dtype, value):
# We eventually produce an array of `struct msg` that is as big as
# the number of peers we have to communicate with
return (dtype._type_*self.npeers)()
@property
def target(self):
return self._target
@property
def halos(self):
return self._halos
@property
def language(self):
return self._language
@property
def npeers(self):
return len(self._halos)
def _arg_defaults(self, alias=None):
target = alias or self.target
for i, halo in enumerate(self.halos):
entry = self.value[i]
# Buffer size for this peer
shape = []
for dim, side in zip(*halo):
try:
shape.append(getattr(target._size_owned[dim], side.name))
except AttributeError:
assert side is CENTER
shape.append(target._size_domain[dim])
entry.sizes = (c_int*len(shape))(*shape)
# Allocate the send/recv buffers
size = reduce(mul, shape)
ctype = dtype_to_ctype(target.dtype)
entry.bufg, bufg_memfree_args = self._allocator._alloc_C_libcall(size, ctype)
entry.bufs, bufs_memfree_args = self._allocator._alloc_C_libcall(size, ctype)
# The `memfree_args` will be used to deallocate the buffer upon returning
# from C-land
self._memfree_args.extend([bufg_memfree_args, bufs_memfree_args])
return {self.name: self.value}
def _arg_values(self, args=None, **kwargs):
return self._arg_defaults(alias=kwargs.get(self.target.name, self.target))
def _arg_apply(self, *args, **kwargs):
self._C_memfree()
# Pickling support
_pickle_args = ['name', 'target', 'halos']
_pickle_kwargs = CompositeObject._pickle_kwargs + ['language']
def CMSG_ALIGN(length): # bits/socket.h
ret = (length + ctypes.sizeof(ctypes.c_size_t) - 1
& ~(ctypes.sizeof(ctypes.c_size_t) - 1))
return ctypes.c_size_t(ret)
def CMSG_SPACE(sz):
return CMSG_ALIGN(sz) + CMSG_ALIGN(ct.sizeof(cmsghdr))
# Copyright (C) 2017-present Pinterest Inc.
#
# This module is part of ptracer and is released under
# the Apache 2.0 License: http://www.apache.org/licenses/LICENSE-2.0
import ctypes
import sys
PLATFORM = None
WORD_SIZE = ctypes.sizeof(ctypes.c_void_p)
BITS = WORD_SIZE * 8
if sys.platform.startswith('linux'):
PLATFORM = 'linux'
if PLATFORM is None or BITS != 64:
raise RuntimeError('unsupported platform: {} ({} bit)'.format(
sys.platform, BITS))
def CMSG_ALIGN(sz):
i = ct.sizeof(ct.c_size_t)
return ((sz + i - 1) // i) * i
def CMSG_LEN(sz):
return CMSG_ALIGN(ct.sizeof(cmsghdr)) + sz
