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PiperOrigin-RevId: 226224230
Change-Id: Id24c7d3733722fd41d5fe74ef64e0ce8c68f0b12
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Implement pwritev2 and associated unit tests.
Clean up preadv2 unit tests.
Tag RWF_ flags in both preadv2 and pwritev2 with associated bug tickets.
PiperOrigin-RevId: 226222119
Change-Id: Ieb22672418812894ba114bbc88e67f1dd50de620
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PiperOrigin-RevId: 226029237
Change-Id: I6fcdb241d635468beb6d6c173f2e7f96d715bf26
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PiperOrigin-RevId: 226018694
Change-Id: I98965e26fe565f37e98e5df5f997363ab273c91b
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Connectionless Unix sockets (DGRAM Unix sockets created with the socket system
call) inherently only have a read queue. They do not establish bidirectional
connections, instead, the connect system call only sets a default send
location. Writes give the data to the other endpoint which has its own read
queue.
To simplify the code, connectionless Unix sockets still get read and write
queues, but the write queue is a dummy and never waited on. The read queue is
the connectionless endpoint's queue. This change fixes a bug where the dummy
queue was incorrectly set as the read queue and the endpoint's queue was
incorrectly set as the write queue. This meant that read notifications went
to the dummy queue and were black holed.
PiperOrigin-RevId: 225921042
Change-Id: I8d9059def787a2c3c305185b92d05093fbd2be2a
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PiperOrigin-RevId: 225887356
Change-Id: Iee000dcfc9e0168c2566edf41c66108be9b68cd6
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Currently mlock() and friends do nothing whatsoever. However, mlocking
is directly application-visible in a number of ways; for example,
madvise(MADV_DONTNEED) and msync(MS_INVALIDATE) both fail on mlocked
regions. We handle this inconsistently: MADV_DONTNEED is too important
to not work, but MS_INVALIDATE is rejected.
Change MM to track mlocked regions in a manner consistent with Linux.
It still will not actually pin pages into host physical memory, but:
- mlock() will now cause sentry memory management to precommit mlocked
pages.
- MADV_DONTNEED and MS_INVALIDATE will interact with mlocked pages as
described above.
PiperOrigin-RevId: 225861605
Change-Id: Iee187204979ac9a4d15d0e037c152c0902c8d0ee
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PiperOrigin-RevId: 225646045
Change-Id: Ic712ebc627587ef4a9486f0b39fe8c96100f10ff
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PiperOrigin-RevId: 225620490
Change-Id: Ia726107b3f58093a5f881634f90b071b32d2c269
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PiperOrigin-RevId: 225455503
Change-Id: I327fc6e7ba26532b628f343dece3bd9fc4d3b524
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This test suite was creating shm segments without ensuring they were
cleaned up. Shm segments outlive the process creating them, so on a
standard linux machine the test was leaving segments behind after each
run. This would often cause failures as test cases would be affected
by the cases that ran before them and left unexpected segments lying
around.
Also skip some assertions around memory usage when running on a Linux
host, as we can't reason about external users of shm segments.
PiperOrigin-RevId: 225435523
Change-Id: Ia299dacf59045002436f5e30dcc131f679bb7272
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PiperOrigin-RevId: 225424296
Change-Id: I60fcc2b859339dca9963cb32227a287e719ab765
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This ensures that we know what type of socket caused a timeout.
PiperOrigin-RevId: 225294255
Change-Id: I9033bd0f3791d3b5714aa08d111cf58a3014d252
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This allows ValueOrDie() to be called on PosixErrorOr rvalues (e.g.
temporaries) holding move-only types without extraneous std::move()s.
PiperOrigin-RevId: 225098036
Change-Id: I662862e4f3562141f941845fc6e197edb27ce29b
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MSG_WAITALL requests that recv family calls do not perform short reads. It only
has an effect for SOCK_STREAM sockets, other types ignore it.
PiperOrigin-RevId: 224918540
Change-Id: Id97fbf972f1f7cbd4e08eec0138f8cbdf1c94fe7
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PiperOrigin-RevId: 224886231
Change-Id: I0fccb4d994601739d8b16b1d4e6b31f40297fb22
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