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This test suite exercises some system calls subject to interruption with EINTR,
to check that it is actually handled transparently.
It is intended to be run by the main test suite within a child process, to
ensure there is no background thread running (so that signals are delivered to
the correct thread).
Signals are generated in-process using setitimer(ITIMER_REAL), which allows
sub-second periodicity (contrarily to signal()).
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zimport os, sys, time� zwr = int(sys.argv[1])�
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|�|d � �7 }|t |�k sM| �|�� d� W d � d S 1 stw Y d S )N� xrM zimport io, os, sys, timerN zrd = int(sys.argv[1])rP zdata = b"x" * %s�data_len = len(data)z!# let the parent block on write()�time.sleep(sleep_time)zread_data = io.BytesIO()z+while len(read_data.getvalue()) < data_len:z% chunk = os.read(rd, 2 * data_len)z read_data.write(chunk)z value = read_data.getvalue()zif value != data:z0 raise Exception("read error: %s vs %s bytes"z- % (len(value), data_len))rR r )r; rS rT rU r Z
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|�� d� W d � d S 1 sow Y d S )N)r` � y� zrM � import os, socket, sys, timerN �fd = int(sys.argv[1])� family = %s�sock_type = %srO rP z)wr = socket.fromfd(fd, family, sock_type)� os.close(fd)zwith wr:z for data in datas:z( # let the parent block on recv()z time.sleep(sleep_time)z wr.sendall(data)rR r )�socketrk rT rU rV �int�family�typer. �filenor& rW r rX rZ r8 ) r Z recv_funcr[ r\ r] r1 �fdr r^ r r r �
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|�|gd�}t|��: |�� d}|t|�k r||t|�|d � �} || d u rvt|�n| 7 }|t|�k sb| �|�� d� W d � d S 1 s�w Y d S )Ns xyzr3 rM rn rN ro rp rq rP zdata = b"xyz" * %sra z)rd = socket.fromfd(fd, family, sock_type)rr zwith rd:z$ # let the parent block on send()rQ z' received_data = bytearray(data_len)z n = 0z while n < data_len:z8 n += rd.recv_into(memoryview(received_data)[n:])zif received_data != data:z0 raise Exception("recv error: %s vs %s bytes"z5 % (len(received_data), data_len))rR r )rs rk rT rU r Z
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TimeEINTRTestz" EINTR tests for the time module. c C s: t �� }t �| j� | �� t �� | }| �|| j� d S r# )�time� monotonic�sleepr. r" �assertGreaterEqual�r �t0�dtr r r �
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FNTLEINTRTestc
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