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Fix PollWithFullBufferBlocks.

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Set the snd/rcv buffer sizes so that the test is deterministic and runs in a
reasonable amount of time. It also ensures that we disable any auto-tuning of
the send/receive buffer which may happen.

PiperOrigin-RevId: 277337232
This commit is contained in:
Bhasker Hariharan
2019-10-29 12:17:06 -07:00
committed by gVisor bot
parent 7d80e85835
commit 392c561495
1 changed files with 8 additions and 1 deletions
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test/syscalls/linux/tcp_socket.cc
+8 -1
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@@ -394,8 +394,15 @@ TEST_P(TcpSocketTest, PollWithFullBufferBlocks) {
sizeof(tcp_nodelay_flag)),
SyscallSucceeds());
// Set a 256KB send/receive buffer.
int buf_sz = 1 << 18;
EXPECT_THAT(setsockopt(t_, SOL_SOCKET, SO_RCVBUF, &buf_sz, sizeof(buf_sz)),
SyscallSucceedsWithValue(0));
EXPECT_THAT(setsockopt(s_, SOL_SOCKET, SO_SNDBUF, &buf_sz, sizeof(buf_sz)),
SyscallSucceedsWithValue(0));
// Create a large buffer that will be used for sending.
std::vector<char> buf(10 * sendbuf_size_);
std::vector<char> buf(1 << 16);
// Write until we receive an error.
while (RetryEINTR(send)(s_, buf.data(), buf.size(), 0) != -1) {