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criu.pyc
� k�x]c @ s� d d l Z d d l Z d d l Z d d l Z d d l Z d d l j Z d d d � � YZ d e f d � � YZ d e f d � � YZ d e f d � � YZ d e f d � � YZ d e f d � � YZ d e f d � � YZ d d d � � YZ d S( i����Nt _criu_commc B sD e Z d Z d Z d Z d Z d Z d Z d Z d � Z d � Z RS( s/ Base class for communication classes. i i i c C s d S( s� Connect to criu and return socket object. daemon -- is for whether or not criu should daemonize if executing criu from binary(comm_bin). N( ( t selft daemon( ( s/ /usr/lib/python2.7/site-packages/pycriu/criu.pyt connect s c C s d S( s' Disconnect from criu. N( ( R ( ( s/ /usr/lib/python2.7/site-packages/pycriu/criu.pyt disconnect s N( t __name__t __module__t __doc__t COMM_SKt COMM_FDt COMM_BINt Nonet comm_typet commt skR R ( ( ( s/ /usr/lib/python2.7/site-packages/pycriu/criu.pyR s t _criu_comm_skc B s) e Z d Z d � Z d � Z d � Z RS( s. Communication class for unix socket. c C s | j | _ | | _ d S( N( R R R ( R t sk_path( ( s/ /usr/lib/python2.7/site-packages/pycriu/criu.pyt __init__* s c C s5 t j t j t j � | _ | j j | j � | j S( N( t sockett AF_UNIXt SOCK_SEQPACKETR R R ( R R ( ( s/ /usr/lib/python2.7/site-packages/pycriu/criu.pyR . s c C s | j j � d S( N( R t close( R ( ( s/ /usr/lib/python2.7/site-packages/pycriu/criu.pyR 4 s ( R R R R R R ( ( ( s/ /usr/lib/python2.7/site-packages/pycriu/criu.pyR % s t _criu_comm_fdc B s) e Z d Z d � Z d � Z d � Z RS( s2 Communication class for file descriptor. c C s | j | _ | | _ d S( N( R R R ( R t fd( ( s/ /usr/lib/python2.7/site-packages/pycriu/criu.pyR = s c C s( t j | j t j t j � | _ | j S( N( R t fromfdR R R R ( R R ( ( s/ /usr/lib/python2.7/site-packages/pycriu/criu.pyR A s c C s | j j � d S( N( R R ( R ( ( s/ /usr/lib/python2.7/site-packages/pycriu/criu.pyR G s ( R R R R R R ( ( ( s/ /usr/lib/python2.7/site-packages/pycriu/criu.pyR 8 s t _criu_comm_binc B s) e Z d Z d � Z d � Z d � Z RS( s) Communication class for binary. c C s+ | j | _ | | _ d | _ d | _ d S( N( R R R R t swrkR ( R t bin_path( ( s/ /usr/lib/python2.7/site-packages/pycriu/criu.pyR P s c sm t j t j t j � � t j � d t j � } t j � d t j | t j B� t j � d t j � } t j � d t j | t j @� | � _ t j � } | d k r � � f d � } | rt j � } | d k r� t j � | � q t j d � q%| � n | r%t j | d � n � d j � t j d � d j d � � d � _ � d � _ � j S( Ni i c s� t j d � t j d � t j d � � d j t j d t j � � � t j � j � j d d � d j � g � t j d � d S( Ni i i t iR s %d( t osR t sendt structt packt getpidt execvR t filenot _exit( ( t cssR ( s/ /usr/lib/python2.7/site-packages/pycriu/criu.pyt exec_criud s # R i ( R t socketpairR R t fcntlt F_GETFDt F_SETFDt FD_CLOEXECR R t forkt setsidR$ t waitpidR R t unpackt recvR R ( R R t flagst pR& ( ( R% R s/ /usr/lib/python2.7/site-packages/pycriu/criu.pyR V s, !" & c C s0 | j j � | j s, t j | j d � n d S( Ni ( R R R R R. R ( R ( ( s/ /usr/lib/python2.7/site-packages/pycriu/criu.pyR � s ( R R R R R R ( ( ( s/ /usr/lib/python2.7/site-packages/pycriu/criu.pyR K s 0t CRIUExceptionc B s# e Z d Z d Z d Z d � Z RS( s? Exception class for handling and storing criu errors. c C s | j S( N( t _str( R ( ( s/ /usr/lib/python2.7/site-packages/pycriu/criu.pyt __str__� s N( R R R R t typR4 R5 ( ( ( s/ /usr/lib/python2.7/site-packages/pycriu/criu.pyR3 � s t CRIUExceptionInternalc B s e Z d Z d � Z RS( sC Exception class for handling and storing internal errors. c C s/ | | _ d t j j | j � | f | _ d S( Ns! %s failed with internal error: %s( R6 t rpct criu_req_typet NameR4 ( R R6 t s( ( s/ /usr/lib/python2.7/site-packages/pycriu/criu.pyR � s ( R R R R ( ( ( s/ /usr/lib/python2.7/site-packages/pycriu/criu.pyR7 � s t CRIUExceptionExternalc B s e Z d Z d � Z d � Z RS( sC Exception class for handling and storing criu RPC errors. c C s. | | _ | | _ | | _ | j � | _ d S( N( R6 t resp_typt errnot _gen_error_strR4 ( R t req_typR= R> ( ( s/ /usr/lib/python2.7/site-packages/pycriu/criu.pyR � s c C s� d t j j | j � f } | j | j k rE | d | j f 7} n | d | j f 7} | j t j k rx | d 7} n | j t j k r� | j t j k r� | d 7} q� n | j t j k r� | j t j k r� | d 7} q� n | d 7} | S( Ns %s failed: s Unexpected response type %d: s Error(%d): s Bad optionss No process with such pids) Process with requested pid already existst Unknown( R8 R9 R: R6 R= R> t EBADRQCt DUMPt ESRCHt RESTOREt EEXIST( R R; ( ( s/ /usr/lib/python2.7/site-packages/pycriu/criu.pyR? � s ( R R R R R? ( ( ( s/ /usr/lib/python2.7/site-packages/pycriu/criu.pyR< � s t criuc B s} e Z d Z d Z d Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z d � Z RS( s Call criu through RPC. c C s) | j d � t j � | _ d | _ d S( NRG ( t use_binaryR8 t criu_optst optsR R ( R ( ( s/ /usr/lib/python2.7/site-packages/pycriu/criu.pyR � s c C s t | � | _ d S( sZ Access criu using unix socket which that belongs to criu service daemon. N( R t _comm( R t sk_name( ( s/ /usr/lib/python2.7/site-packages/pycriu/criu.pyt use_sk� s c C s t | � | _ d S( s0 Access criu using provided fd. N( R RK ( R R ( ( s/ /usr/lib/python2.7/site-packages/pycriu/criu.pyt use_fd� s c C s t | � | _ d S( sO Access criu by execing it using provided path to criu binary. N( R RK ( R t bin_name( ( s/ /usr/lib/python2.7/site-packages/pycriu/criu.pyRH � s c C s t } | j t j k r4 | j j d � r4 t } n y� | j sU | j j | � } n | j } | j rs | | _ n | j | j � � | j t | j d t j t j B� � � } | j s� | j j � n t j � } | j | � Wn+ t k r} t | j t | � � � n X| S( sA As simple as send request and receive response. t pidi ( t Falset typeR8 RC RJ t HasFieldt TrueR RK R t keep_openR t SerializeToStringR0 t lenR t MSG_TRUNCt MSG_PEEKR t criu_respt ParseFromStringt ExceptionR7 t str( R t reqR R; t buft respt e( ( s/ /usr/lib/python2.7/site-packages/pycriu/criu.pyt _send_req_and_recv_resp� s$ % + c C sR t j � } t j | _ | j | � } | j sN t | j | j | j � � n d S( sB Checks whether the kernel support is up-to-date. N( R8 t criu_reqt CHECKRR Rb t successR< t cr_errno( R R^ R` ( ( s/ /usr/lib/python2.7/site-packages/pycriu/criu.pyt check s c C sh t j � } t j | _ | j j | j � | j | � } | j sa t | j | j | j � � n | j S( sC Checkpoint a process/tree identified by opts.pid. ( R8 Rc RC RR RJ t MergeFromRb Re R< Rf t dump( R R^ R` ( ( s/ /usr/lib/python2.7/site-packages/pycriu/criu.pyRi s c C sh t j � } t j | _ | j j | j � | j | � } | j sa t | j | j | j � � n | j S( sC Checkpoint a process/tree identified by opts.pid. ( R8 Rc t PRE_DUMPRR RJ Rh Rb Re R< Rf Ri ( R R^ R` ( ( s/ /usr/lib/python2.7/site-packages/pycriu/criu.pyt pre_dump" s c C sh t j � } t j | _ | j j | j � | j | � } | j sa t | j | j | j � � n | j S( s) Restore a process/tree. ( R8 Rc RE RR RJ Rh Rb Re R< Rf t restore( R R^ R` ( ( s/ /usr/lib/python2.7/site-packages/pycriu/criu.pyRl 1 s c C sq t j � } t j | _ | j j | j � t | _ | j | � } | j sj t | j | j | j � � n | j S( N( R8 Rc t PAGE_SERVER_CHLDRR RJ Rh RT RU Rb Re R< Rf t ps( R R^ R` ( ( s/ /usr/lib/python2.7/site-packages/pycriu/criu.pyt page_server_chld@ s c C s^ t j � } t j | _ | | _ | j | � } | j sW t | j | j | j � � n | j S( N( R8 Rc t WAIT_PIDRR RP Rb Re R< Rf t status( R RP R^ R` ( ( s/ /usr/lib/python2.7/site-packages/pycriu/criu.pyt wait_pidM s N( R R R R RJ RK R RM RN RH Rb Rg Ri Rk Rl Ro Rr ( ( ( s/ /usr/lib/python2.7/site-packages/pycriu/criu.pyRG � s # ( ( ( R R> R( R R t pycriu.rpc_pb2t rpc_pb2R8 R R R R R\ R3 R7 R< RG ( ( ( s/ /usr/lib/python2.7/site-packages/pycriu/criu.pyt <module> s A #