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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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�z OSEINTRTest._test_wait_multiplec C s | � tj� d S r$ )r? �osr; r r r r � test_wait` � zOSEINTRTest.test_wait�wait3zrequires wait3()c C � | � dd� � d S )Nc S s
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|�|d � �7 }|t |�k sM| �|�� d� W d � d S 1 stw Y d S )N� xrR zimport io, os, sys, timerS zrd = int(sys.argv[1])rU 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))rW r )r@ rY rZ r[ r �
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|�� d� W d � d S 1 sow Y d S )N)rf � y� zrR � import os, socket, sys, timerS �fd = int(sys.argv[1])� family = %s�sock_type = %srT rU 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)rW r )�socketrr rZ r[ r\ �int�family�typer1 �filenor( r] r r^ r` r; ) r � recv_funcra rb rc r4 �fdr rd r r r �
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TimeEINTRTestz" EINTR tests for the time module. c C s: t �� }t �| j� | �� t �� | }| �|| j� d S r$ )�time� monotonic�sleepr1 r# �assertGreaterEqual�r �t0�dtr r r �
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FNTLEINTRTestc
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