Python _multiprocessing.Connection方法代码示例

# 需要导入模块: import _multiprocessing [as 别名]
# 或者: from _multiprocessing import Connection [as 别名]
def Pipe(duplex=True):
        '''
        Returns pair of connection objects at either end of a pipe
        '''
        if duplex:
            s1, s2 = socket.socketpair()
            s1.setblocking(True)
            s2.setblocking(True)
            c1 = _multiprocessing.Connection(os.dup(s1.fileno()))
            c2 = _multiprocessing.Connection(os.dup(s2.fileno()))
            s1.close()
            s2.close()
        else:
            fd1, fd2 = os.pipe()
            c1 = _multiprocessing.Connection(fd1, writable=False)
            c2 = _multiprocessing.Connection(fd2, readable=False)

        return c1, c2 

# 需要导入模块: import _multiprocessing [as 别名]
# 或者: from _multiprocessing import Connection [as 别名]
def __init__(self, f, regions=False, kind=None, samtools_path="samtools"):
        ext = None
        self.samtools_path = samtools_path
        self.spool = None  # use this to catch alignment during reader scraping
        self.type = 'sam'
        try:
            self._f_name = f.name
            _, ext = os.path.splitext(f.name)
            if f.name == '<stdin>':  # stdin stream
                self._sam_init(f)
            elif (ext is not None and ext.lower()) == '.bam' or (kind is not None and kind.lower() == 'bam'):
                self._bam_init(f, regions)
                self.type = 'bam'
            elif (ext is not None and ext.lower()) == '.sam' or (kind is not None and kind.lower() == 'sam'):
                self._sam_init(f)
            else:
                self._sam_init(f)
            if (regions and (ext is not None and ext.lower() != '.bam') and kind is None) or (regions and kind is not None and kind.lower() != 'bam'):
                self.__exit__()
                raise ValueError("Region support requires bam file.")
        except AttributeError:
            self._f_name = None
            if isinstance(f, Connection):
                self._pipe_init(f)
            else:
                self._sam_init(f) 

# 需要导入模块: import _multiprocessing [as 别名]
# 或者: from _multiprocessing import Connection [as 别名]
def rebuild_handle(pickled_data):
    address, handle, inherited = pickled_data
    if inherited:
        return handle
    sub_debug('rebuilding handle %d', handle)
    conn = Client(address, authkey=current_process().authkey)
    conn.send((handle, os.getpid()))
    new_handle = recv_handle(conn)
    conn.close()
    return new_handle

#
# Register `_multiprocessing.Connection` with `ForkingPickler`
# 

# 需要导入模块: import _multiprocessing [as 别名]
# 或者: from _multiprocessing import Connection [as 别名]
def rebuild_connection(reduced_handle, readable, writable):
    handle = rebuild_handle(reduced_handle)
    return _multiprocessing.Connection(
        handle, readable=readable, writable=writable
        ) 

# 需要导入模块: import _multiprocessing [as 别名]
# 或者: from _multiprocessing import Connection [as 别名]
def accept(self):
        '''
        Accept a connection on the bound socket or named pipe of `self`.

        Returns a `Connection` object.
        '''
        c = self._listener.accept()
        if self._authkey:
            deliver_challenge(c, self._authkey)
            answer_challenge(c, self._authkey)
        return c 

# 需要导入模块: import _multiprocessing [as 别名]
# 或者: from _multiprocessing import Connection [as 别名]
def rebuild_connection(df, readable, writable):
        fd = df.detach()
        return Connection(fd, readable, writable)