tildefriends/deps/libuv/test/test-poll-close-doesnt-corrupt-stack.c

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/* Copyright Bert Belder, and other libuv 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.
*/
#include <errno.h>
#include <stdio.h>
#include "uv.h"
#include "task.h"
#ifdef _MSC_VER /* msvc */
# define NO_INLINE __declspec(noinline)
#else /* gcc */
# define NO_INLINE __attribute__ ((noinline))
#endif
#ifdef _WIN32
static uv_os_sock_t sock;
static uv_poll_t handle;
static int close_cb_called = 0;
static void close_cb(uv_handle_t* h) {
close_cb_called++;
}
static void poll_cb(uv_poll_t* h, int status, int events) {
ASSERT(0 && "should never get here");
}
static void NO_INLINE close_socket_and_verify_stack(void) {
const uint32_t MARKER = 0xDEADBEEF;
const int VERIFY_AFTER = 10; /* ms */
int r;
volatile uint32_t data[65536];
size_t i;
for (i = 0; i < ARRAY_SIZE(data); i++)
data[i] = MARKER;
r = closesocket(sock);
ASSERT_OK(r);
uv_sleep(VERIFY_AFTER);
for (i = 0; i < ARRAY_SIZE(data); i++)
ASSERT_EQ(data[i], MARKER);
}
#endif
TEST_IMPL(poll_close_doesnt_corrupt_stack) {
#ifndef _WIN32
RETURN_SKIP("Test only relevant on Windows");
#else
struct WSAData wsa_data;
int r;
unsigned long on;
struct sockaddr_in addr;
r = WSAStartup(MAKEWORD(2, 2), &wsa_data);
ASSERT_OK(r);
sock = socket(AF_INET, SOCK_STREAM, 0);
ASSERT_NE(sock, INVALID_SOCKET);
on = 1;
r = ioctlsocket(sock, FIONBIO, &on);
ASSERT_OK(r);
r = uv_ip4_addr("127.0.0.1", TEST_PORT, &addr);
ASSERT_OK(r);
r = connect(sock, (const struct sockaddr*) &addr, sizeof addr);
ASSERT(r);
ASSERT_EQ(WSAGetLastError(), WSAEWOULDBLOCK);
r = uv_poll_init_socket(uv_default_loop(), &handle, sock);
ASSERT_OK(r);
r = uv_poll_start(&handle, UV_READABLE | UV_WRITABLE, poll_cb);
ASSERT_OK(r);
uv_close((uv_handle_t*) &handle, close_cb);
close_socket_and_verify_stack();
r = uv_run(uv_default_loop(), UV_RUN_DEFAULT);
ASSERT_OK(r);
ASSERT_EQ(1, close_cb_called);
MAKE_VALGRIND_HAPPY(uv_default_loop());
return 0;
#endif
}