diff options
Diffstat (limited to '3rdparty/libuv/src/win/core.c')
-rw-r--r-- | 3rdparty/libuv/src/win/core.c | 493 |
1 files changed, 0 insertions, 493 deletions
diff --git a/3rdparty/libuv/src/win/core.c b/3rdparty/libuv/src/win/core.c deleted file mode 100644 index ba306ebc083..00000000000 --- a/3rdparty/libuv/src/win/core.c +++ /dev/null @@ -1,493 +0,0 @@ -/* 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. - */ - -#include <assert.h> -#include <errno.h> -#include <limits.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#if defined(_MSC_VER) || defined(__MINGW64_VERSION_MAJOR) -#include <crtdbg.h> -#endif - -#include "uv.h" -#include "internal.h" -#include "handle-inl.h" -#include "req-inl.h" - - -static uv_loop_t default_loop_struct; -static uv_loop_t* default_loop_ptr; - -/* uv_once initialization guards */ -static uv_once_t uv_init_guard_ = UV_ONCE_INIT; - - -#if defined(_DEBUG) && (defined(_MSC_VER) || defined(__MINGW64_VERSION_MAJOR)) -/* Our crt debug report handler allows us to temporarily disable asserts - * just for the current thread. - */ - -UV_THREAD_LOCAL int uv__crt_assert_enabled = TRUE; - -static int uv__crt_dbg_report_handler(int report_type, char *message, int *ret_val) { - if (uv__crt_assert_enabled || report_type != _CRT_ASSERT) - return FALSE; - - if (ret_val) { - /* Set ret_val to 0 to continue with normal execution. - * Set ret_val to 1 to trigger a breakpoint. - */ - - if(IsDebuggerPresent()) - *ret_val = 1; - else - *ret_val = 0; - } - - /* Don't call _CrtDbgReport. */ - return TRUE; -} -#else -UV_THREAD_LOCAL int uv__crt_assert_enabled = FALSE; -#endif - - -#if !defined(__MINGW32__) || __MSVCRT_VERSION__ >= 0x800 -static void uv__crt_invalid_parameter_handler(const wchar_t* expression, - const wchar_t* function, const wchar_t * file, unsigned int line, - uintptr_t reserved) { - /* No-op. */ -} -#endif - - -static void uv_init(void) { - /* Tell Windows that we will handle critical errors. */ - SetErrorMode(SEM_FAILCRITICALERRORS | SEM_NOGPFAULTERRORBOX | - SEM_NOOPENFILEERRORBOX); - - /* Tell the CRT to not exit the application when an invalid parameter is - * passed. The main issue is that invalid FDs will trigger this behavior. - */ -#if !defined(__MINGW32__) || __MSVCRT_VERSION__ >= 0x800 - _set_invalid_parameter_handler(uv__crt_invalid_parameter_handler); -#endif - - /* We also need to setup our debug report handler because some CRT - * functions (eg _get_osfhandle) raise an assert when called with invalid - * FDs even though they return the proper error code in the release build. - */ -#if defined(_DEBUG) && (defined(_MSC_VER) || defined(__MINGW64_VERSION_MAJOR)) - _CrtSetReportHook(uv__crt_dbg_report_handler); -#endif - - /* Fetch winapi function pointers. This must be done first because other - * initialization code might need these function pointers to be loaded. - */ - uv_winapi_init(); - - /* Initialize winsock */ - uv_winsock_init(); - - /* Initialize FS */ - uv_fs_init(); - - /* Initialize signal stuff */ - uv_signals_init(); - - /* Initialize console */ - uv_console_init(); - - /* Initialize utilities */ - uv__util_init(); -} - - -int uv_loop_init(uv_loop_t* loop) { - int err; - - /* Initialize libuv itself first */ - uv__once_init(); - - /* Create an I/O completion port */ - loop->iocp = CreateIoCompletionPort(INVALID_HANDLE_VALUE, NULL, 0, 1); - if (loop->iocp == NULL) - return uv_translate_sys_error(GetLastError()); - - /* To prevent uninitialized memory access, loop->time must be initialized - * to zero before calling uv_update_time for the first time. - */ - loop->time = 0; - uv_update_time(loop); - - QUEUE_INIT(&loop->wq); - QUEUE_INIT(&loop->handle_queue); - QUEUE_INIT(&loop->active_reqs); - loop->active_handles = 0; - - loop->pending_reqs_tail = NULL; - - loop->endgame_handles = NULL; - - RB_INIT(&loop->timers); - - loop->check_handles = NULL; - loop->prepare_handles = NULL; - loop->idle_handles = NULL; - - loop->next_prepare_handle = NULL; - loop->next_check_handle = NULL; - loop->next_idle_handle = NULL; - - memset(&loop->poll_peer_sockets, 0, sizeof loop->poll_peer_sockets); - - loop->active_tcp_streams = 0; - loop->active_udp_streams = 0; - - loop->timer_counter = 0; - loop->stop_flag = 0; - - err = uv_mutex_init(&loop->wq_mutex); - if (err) - goto fail_mutex_init; - - err = uv_async_init(loop, &loop->wq_async, uv__work_done); - if (err) - goto fail_async_init; - - uv__handle_unref(&loop->wq_async); - loop->wq_async.flags |= UV__HANDLE_INTERNAL; - - return 0; - -fail_async_init: - uv_mutex_destroy(&loop->wq_mutex); - -fail_mutex_init: - CloseHandle(loop->iocp); - loop->iocp = INVALID_HANDLE_VALUE; - - return err; -} - - -void uv__once_init(void) { - uv_once(&uv_init_guard_, uv_init); -} - - -void uv__loop_close(uv_loop_t* loop) { - size_t i; - - /* close the async handle without needing an extra loop iteration */ - assert(!loop->wq_async.async_sent); - loop->wq_async.close_cb = NULL; - uv__handle_closing(&loop->wq_async); - uv__handle_close(&loop->wq_async); - - for (i = 0; i < ARRAY_SIZE(loop->poll_peer_sockets); i++) { - SOCKET sock = loop->poll_peer_sockets[i]; - if (sock != 0 && sock != INVALID_SOCKET) - closesocket(sock); - } - - uv_mutex_lock(&loop->wq_mutex); - assert(QUEUE_EMPTY(&loop->wq) && "thread pool work queue not empty!"); - assert(!uv__has_active_reqs(loop)); - uv_mutex_unlock(&loop->wq_mutex); - uv_mutex_destroy(&loop->wq_mutex); - - CloseHandle(loop->iocp); -} - - -int uv__loop_configure(uv_loop_t* loop, uv_loop_option option, va_list ap) { - return UV_ENOSYS; -} - - -int uv_backend_fd(const uv_loop_t* loop) { - return -1; -} - - -int uv_backend_timeout(const uv_loop_t* loop) { - if (loop->stop_flag != 0) - return 0; - - if (!uv__has_active_handles(loop) && !uv__has_active_reqs(loop)) - return 0; - - if (loop->pending_reqs_tail) - return 0; - - if (loop->endgame_handles) - return 0; - - if (loop->idle_handles) - return 0; - - return uv__next_timeout(loop); -} - - -static void uv_poll(uv_loop_t* loop, DWORD timeout) { - DWORD bytes; - ULONG_PTR key; - OVERLAPPED* overlapped; - uv_req_t* req; - int repeat; - uint64_t timeout_time; - - timeout_time = loop->time + timeout; - - for (repeat = 0; ; repeat++) { - GetQueuedCompletionStatus(loop->iocp, - &bytes, - &key, - &overlapped, - timeout); - - if (overlapped) { - /* Package was dequeued */ - req = uv_overlapped_to_req(overlapped); - uv_insert_pending_req(loop, req); - - /* Some time might have passed waiting for I/O, - * so update the loop time here. - */ - uv_update_time(loop); - } else if (GetLastError() != WAIT_TIMEOUT) { - /* Serious error */ - uv_fatal_error(GetLastError(), "GetQueuedCompletionStatus"); - } else if (timeout > 0) { - /* GetQueuedCompletionStatus can occasionally return a little early. - * Make sure that the desired timeout target time is reached. - */ - uv_update_time(loop); - if (timeout_time > loop->time) { - timeout = (DWORD)(timeout_time - loop->time); - /* The first call to GetQueuedCompletionStatus should return very - * close to the target time and the second should reach it, but - * this is not stated in the documentation. To make sure a busy - * loop cannot happen, the timeout is increased exponentially - * starting on the third round. - */ - timeout += repeat ? (1 << (repeat - 1)) : 0; - continue; - } - } - break; - } -} - - -static void uv_poll_ex(uv_loop_t* loop, DWORD timeout) { - BOOL success; - uv_req_t* req; - OVERLAPPED_ENTRY overlappeds[128]; - ULONG count; - ULONG i; - int repeat; - uint64_t timeout_time; - - timeout_time = loop->time + timeout; - - for (repeat = 0; ; repeat++) { - success = pGetQueuedCompletionStatusEx(loop->iocp, - overlappeds, - ARRAY_SIZE(overlappeds), - &count, - timeout, - FALSE); - - if (success) { - for (i = 0; i < count; i++) { - /* Package was dequeued */ - req = uv_overlapped_to_req(overlappeds[i].lpOverlapped); - uv_insert_pending_req(loop, req); - } - - /* Some time might have passed waiting for I/O, - * so update the loop time here. - */ - uv_update_time(loop); - } else if (GetLastError() != WAIT_TIMEOUT) { - /* Serious error */ - uv_fatal_error(GetLastError(), "GetQueuedCompletionStatusEx"); - } else if (timeout > 0) { - /* GetQueuedCompletionStatus can occasionally return a little early. - * Make sure that the desired timeout target time is reached. - */ - uv_update_time(loop); - if (timeout_time > loop->time) { - timeout = (DWORD)(timeout_time - loop->time); - /* The first call to GetQueuedCompletionStatus should return very - * close to the target time and the second should reach it, but - * this is not stated in the documentation. To make sure a busy - * loop cannot happen, the timeout is increased exponentially - * starting on the third round. - */ - timeout += repeat ? (1 << (repeat - 1)) : 0; - continue; - } - } - break; - } -} - - -static int uv__loop_alive(const uv_loop_t* loop) { - return loop->active_handles > 0 || - !QUEUE_EMPTY(&loop->active_reqs) || - loop->endgame_handles != NULL; -} - - -int uv_loop_alive(const uv_loop_t* loop) { - return uv__loop_alive(loop); -} - - -int uv_run(uv_loop_t *loop, uv_run_mode mode) { - DWORD timeout; - int r; - int ran_pending; - void (*poll)(uv_loop_t* loop, DWORD timeout); - - if (pGetQueuedCompletionStatusEx) - poll = &uv_poll_ex; - else - poll = &uv_poll; - - r = uv__loop_alive(loop); - if (!r) - uv_update_time(loop); - - while (r != 0 && loop->stop_flag == 0) { - uv_update_time(loop); - uv_process_timers(loop); - - ran_pending = uv_process_reqs(loop); - uv_idle_invoke(loop); - uv_prepare_invoke(loop); - - timeout = 0; - if ((mode == UV_RUN_ONCE && !ran_pending) || mode == UV_RUN_DEFAULT) - timeout = uv_backend_timeout(loop); - - (*poll)(loop, timeout); - - uv_check_invoke(loop); - uv_process_endgames(loop); - - if (mode == UV_RUN_ONCE) { - /* UV_RUN_ONCE implies forward progress: at least one callback must have - * been invoked when it returns. uv__io_poll() can return without doing - * I/O (meaning: no callbacks) when its timeout expires - which means we - * have pending timers that satisfy the forward progress constraint. - * - * UV_RUN_NOWAIT makes no guarantees about progress so it's omitted from - * the check. - */ - uv_process_timers(loop); - } - - r = uv__loop_alive(loop); - if (mode == UV_RUN_ONCE || mode == UV_RUN_NOWAIT) - break; - } - - /* The if statement lets the compiler compile it to a conditional store. - * Avoids dirtying a cache line. - */ - if (loop->stop_flag != 0) - loop->stop_flag = 0; - - return r; -} - - -int uv_fileno(const uv_handle_t* handle, uv_os_fd_t* fd) { - uv_os_fd_t fd_out; - - switch (handle->type) { - case UV_TCP: - fd_out = (uv_os_fd_t)((uv_tcp_t*) handle)->socket; - break; - - case UV_NAMED_PIPE: - fd_out = ((uv_pipe_t*) handle)->handle; - break; - - case UV_TTY: - fd_out = ((uv_tty_t*) handle)->handle; - break; - - case UV_UDP: - fd_out = (uv_os_fd_t)((uv_udp_t*) handle)->socket; - break; - - case UV_POLL: - fd_out = (uv_os_fd_t)((uv_poll_t*) handle)->socket; - break; - - default: - return UV_EINVAL; - } - - if (uv_is_closing(handle) || fd_out == INVALID_HANDLE_VALUE) - return UV_EBADF; - - *fd = fd_out; - return 0; -} - - -int uv__socket_sockopt(uv_handle_t* handle, int optname, int* value) { - int r; - int len; - SOCKET socket; - - if (handle == NULL || value == NULL) - return UV_EINVAL; - - if (handle->type == UV_TCP) - socket = ((uv_tcp_t*) handle)->socket; - else if (handle->type == UV_UDP) - socket = ((uv_udp_t*) handle)->socket; - else - return UV_ENOTSUP; - - len = sizeof(*value); - - if (*value == 0) - r = getsockopt(socket, SOL_SOCKET, optname, (char*) value, &len); - else - r = setsockopt(socket, SOL_SOCKET, optname, (const char*) value, len); - - if (r == SOCKET_ERROR) - return uv_translate_sys_error(WSAGetLastError()); - - return 0; -} |