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ZIP olu?turuldu: wp-log/parcalar.zip
ZIP olu?turuldu: wp-log/parcalar.zip
ZIP olu?turuldu: wp-log/parcalar.zip
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ZIP olu?turuldu: wp-log/parcalar.zip
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File manager - Edit - /lib/python3.9/site-packages/pycriu/criu.py

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# Same as libcriu for C. import socket import errno import fcntl import os import struct import pycriu.rpc_pb2 as rpc class _criu_comm: """ Base class for communication classes. """ COMM_SK = 0 COMM_FD = 1 COMM_BIN = 2 comm_type = None comm = None sk = None def connect(self, daemon): """ Connect to criu and return socket object. daemon -- is for whether or not criu should daemonize if executing criu from binary(comm_bin). """ pass def disconnect(self): """ Disconnect from criu. """ pass class _criu_comm_sk(_criu_comm): """ Communication class for unix socket. """ def __init__(self, sk_path): self.comm_type = self.COMM_SK self.comm = sk_path def connect(self, daemon): self.sk = socket.socket(socket.AF_UNIX, socket.SOCK_SEQPACKET) self.sk.connect(self.comm) return self.sk def disconnect(self): self.sk.close() class _criu_comm_fd(_criu_comm): """ Communication class for file descriptor. """ def __init__(self, fd): self.comm_type = self.COMM_FD self.comm = fd def connect(self, daemon): self.sk = socket.fromfd(self.comm, socket.AF_UNIX, socket.SOCK_SEQPACKET) return self.sk def disconnect(self): self.sk.close() class _criu_comm_bin(_criu_comm): """ Communication class for binary. """ def __init__(self, bin_path): self.comm_type = self.COMM_BIN self.comm = bin_path self.swrk = None self.daemon = None def connect(self, daemon): # Kind of the same thing we do in libcriu css = socket.socketpair(socket.AF_UNIX, socket.SOCK_SEQPACKET) flags = fcntl.fcntl(css[1], fcntl.F_GETFD) fcntl.fcntl(css[1], fcntl.F_SETFD, flags \| fcntl.FD_CLOEXEC) flags = fcntl.fcntl(css[0], fcntl.F_GETFD) fcntl.fcntl(css[0], fcntl.F_SETFD, flags & ~fcntl.FD_CLOEXEC) self.daemon = daemon p = os.fork() if p == 0: def exec_criu(): os.close(0) os.close(1) os.close(2) css[0].send(struct.pack('i', os.getpid())) os.execv(self.comm, [self.comm, 'swrk', "%d" % css[0].fileno()]) os._exit(1) if daemon: # Python has no daemon(3) alternative, # so we need to mimic it ourself. p = os.fork() if p == 0: os.setsid() exec_criu() else: os._exit(0) else: exec_criu() else: if daemon: os.waitpid(p, 0) css[0].close() self.swrk = struct.unpack('i', css[1].recv(4))[0] self.sk = css[1] return self.sk def disconnect(self): self.sk.close() if not self.daemon: os.waitpid(self.swrk, 0) class CRIUException(Exception): """ Exception class for handling and storing criu errors. """ typ = None _str = None def __str__(self): return self._str class CRIUExceptionInternal(CRIUException): """ Exception class for handling and storing internal errors. """ def __init__(self, typ, s): self.typ = typ self._str = "%s failed with internal error: %s" % ( rpc.criu_req_type.Name(self.typ), s) class CRIUExceptionExternal(CRIUException): """ Exception class for handling and storing criu RPC errors. """ def __init__(self, req_typ, resp_typ, errno): self.typ = req_typ self.resp_typ = resp_typ self.errno = errno self._str = self._gen_error_str() def _gen_error_str(self): s = "%s failed: " % (rpc.criu_req_type.Name(self.typ), ) if self.typ != self.resp_typ: s += "Unexpected response type %d: " % (self.resp_typ, ) s += "Error(%d): " % (self.errno, ) if self.errno == errno.EBADRQC: s += "Bad options" if self.typ == rpc.DUMP: if self.errno == errno.ESRCH: s += "No process with such pid" if self.typ == rpc.RESTORE: if self.errno == errno.EEXIST: s += "Process with requested pid already exists" s += "Unknown" return s class criu: """ Call criu through RPC. """ opts = None #CRIU options in pb format _comm = None #Communication method def __init__(self): self.use_binary('criu') self.opts = rpc.criu_opts() self.sk = None def use_sk(self, sk_name): """ Access criu using unix socket which that belongs to criu service daemon. """ self._comm = _criu_comm_sk(sk_name) def use_fd(self, fd): """ Access criu using provided fd. """ self._comm = _criu_comm_fd(fd) def use_binary(self, bin_name): """ Access criu by execing it using provided path to criu binary. """ self._comm = _criu_comm_bin(bin_name) def _send_req_and_recv_resp(self, req): """ As simple as send request and receive response. """ # In case of self-dump we need to spawn criu swrk detached # from our current process, as criu has a hard time separating # process resources from its own if criu is located in a same # process tree it is trying to dump. daemon = False if req.type == rpc.DUMP and not req.opts.HasField('pid'): daemon = True try: if not self.sk: s = self._comm.connect(daemon) else: s = self.sk if req.keep_open: self.sk = s s.send(req.SerializeToString()) buf = s.recv(len(s.recv(1, socket.MSG_TRUNC \| socket.MSG_PEEK))) if not req.keep_open: self._comm.disconnect() resp = rpc.criu_resp() resp.ParseFromString(buf) except Exception as e: raise CRIUExceptionInternal(req.type, str(e)) return resp def check(self): """ Checks whether the kernel support is up-to-date. """ req = rpc.criu_req() req.type = rpc.CHECK resp = self._send_req_and_recv_resp(req) if not resp.success: raise CRIUExceptionExternal(req.type, resp.type, resp.cr_errno) def dump(self): """ Checkpoint a process/tree identified by opts.pid. """ req = rpc.criu_req() req.type = rpc.DUMP req.opts.MergeFrom(self.opts) resp = self._send_req_and_recv_resp(req) if not resp.success: raise CRIUExceptionExternal(req.type, resp.type, resp.cr_errno) return resp.dump def pre_dump(self): """ Checkpoint a process/tree identified by opts.pid. """ req = rpc.criu_req() req.type = rpc.PRE_DUMP req.opts.MergeFrom(self.opts) resp = self._send_req_and_recv_resp(req) if not resp.success: raise CRIUExceptionExternal(req.type, resp.type, resp.cr_errno) return resp.dump def restore(self): """ Restore a process/tree. """ req = rpc.criu_req() req.type = rpc.RESTORE req.opts.MergeFrom(self.opts) resp = self._send_req_and_recv_resp(req) if not resp.success: raise CRIUExceptionExternal(req.type, resp.type, resp.cr_errno) return resp.restore def page_server_chld(self): req = rpc.criu_req() req.type = rpc.PAGE_SERVER_CHLD req.opts.MergeFrom(self.opts) req.keep_open = True resp = self._send_req_and_recv_resp(req) if not resp.success: raise CRIUExceptionExternal(req.type, resp.type, resp.cr_errno) return resp.ps def wait_pid(self, pid): req = rpc.criu_req() req.type = rpc.WAIT_PID req.pid = pid resp = self._send_req_and_recv_resp(req) if not resp.success: raise CRIUExceptionExternal(req.type, resp.type, resp.cr_errno) return resp.status