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author | 2016-02-21 11:48:45 +0100 | |
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committer | 2016-02-21 11:48:45 +0100 | |
commit | cc24a339d8c0517259084b5c178d784626ba965c (patch) | |
tree | 9868e9687b5802ae0a3733712a3bbeb3bc75c953 /3rdparty/libuv/test/test-emfile.c | |
parent | b5daabda5495dea5c50e17961ecfed2ea8619d76 (diff) |
Merge remote-tracking branch 'refs/remotes/mamedev/master'
Second attempt
Diffstat (limited to '3rdparty/libuv/test/test-emfile.c')
-rw-r--r-- | 3rdparty/libuv/test/test-emfile.c | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/3rdparty/libuv/test/test-emfile.c b/3rdparty/libuv/test/test-emfile.c new file mode 100644 index 00000000000..dd35f785b46 --- /dev/null +++ b/3rdparty/libuv/test/test-emfile.c @@ -0,0 +1,110 @@ +/* Copyright Joyent, Inc. and other Node contributors. All rights reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to + * deal in the Software without restriction, including without limitation the + * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + */ + +#if !defined(_WIN32) + +#include "uv.h" +#include "task.h" + +#include <errno.h> +#include <sys/resource.h> +#include <unistd.h> + +static void connection_cb(uv_stream_t* server_handle, int status); +static void connect_cb(uv_connect_t* req, int status); + +static const int maxfd = 31; +static unsigned connect_cb_called; +static uv_tcp_t server_handle; +static uv_tcp_t client_handle; + + +TEST_IMPL(emfile) { + struct sockaddr_in addr; + struct rlimit limits; + uv_connect_t connect_req; + uv_loop_t* loop; + int first_fd; + + /* Lower the file descriptor limit and use up all fds save one. */ + limits.rlim_cur = limits.rlim_max = maxfd + 1; + if (setrlimit(RLIMIT_NOFILE, &limits)) { + ASSERT(errno == EPERM); /* Valgrind blocks the setrlimit() call. */ + RETURN_SKIP("setrlimit(RLIMIT_NOFILE) failed, running under valgrind?"); + } + + loop = uv_default_loop(); + ASSERT(0 == uv_ip4_addr("127.0.0.1", TEST_PORT, &addr)); + ASSERT(0 == uv_tcp_init(loop, &server_handle)); + ASSERT(0 == uv_tcp_init(loop, &client_handle)); + ASSERT(0 == uv_tcp_bind(&server_handle, (const struct sockaddr*) &addr, 0)); + ASSERT(0 == uv_listen((uv_stream_t*) &server_handle, 8, connection_cb)); + + /* Remember the first one so we can clean up afterwards. */ + do + first_fd = dup(0); + while (first_fd == -1 && errno == EINTR); + ASSERT(first_fd > 0); + + while (dup(0) != -1 || errno == EINTR); + ASSERT(errno == EMFILE); + close(maxfd); + + /* Now connect and use up the last available file descriptor. The EMFILE + * handling logic in src/unix/stream.c should ensure that connect_cb() runs + * whereas connection_cb() should *not* run. + */ + ASSERT(0 == uv_tcp_connect(&connect_req, + &client_handle, + (const struct sockaddr*) &addr, + connect_cb)); + ASSERT(0 == uv_run(loop, UV_RUN_DEFAULT)); + ASSERT(1 == connect_cb_called); + + /* Close the dups again. Ignore errors in the unlikely event that the + * file descriptors were not contiguous. + */ + while (first_fd < maxfd) { + close(first_fd); + first_fd += 1; + } + + MAKE_VALGRIND_HAPPY(); + return 0; +} + + +static void connection_cb(uv_stream_t* server_handle, int status) { + ASSERT(0 && "connection_cb should not be called."); +} + + +static void connect_cb(uv_connect_t* req, int status) { + /* |status| should equal 0 because the connection should have been accepted, + * it's just that the server immediately closes it again. + */ + ASSERT(0 == status); + connect_cb_called += 1; + uv_close((uv_handle_t*) &server_handle, NULL); + uv_close((uv_handle_t*) &client_handle, NULL); +} + +#endif /* !defined(_WIN32) */ |