dabc737d78
The tty subsystem on Windows was listening for console events from all processes to detect when our console window was being resized. This could cause an explosion in the number of events queued by the system when running many console applications in parallel that all wrote to their console quickly. The end result was a complete machine hang. Now we determine, whenever possible, what our corresponding conhost.exe process is and listen for console events from that process only. This detection does not work in 32-bit applications running on 64-bit Windows so those default to the old behavior of listening to all processes. PR-URL: https://github.com/libuv/libuv/pull/2308 Reviewed-By: Saúl Ibarra Corretgé <saghul@gmail.com> Reviewed-By: Bartosz Sosnowski <bartosz@janeasystems.com>
139 lines
4.8 KiB
C
139 lines
4.8 KiB
C
/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#include <assert.h>
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#include "uv.h"
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#include "internal.h"
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/* Ntdll function pointers */
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sRtlGetVersion pRtlGetVersion;
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sRtlNtStatusToDosError pRtlNtStatusToDosError;
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sNtDeviceIoControlFile pNtDeviceIoControlFile;
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sNtQueryInformationFile pNtQueryInformationFile;
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sNtSetInformationFile pNtSetInformationFile;
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sNtQueryVolumeInformationFile pNtQueryVolumeInformationFile;
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sNtQueryDirectoryFile pNtQueryDirectoryFile;
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sNtQuerySystemInformation pNtQuerySystemInformation;
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sNtQueryInformationProcess pNtQueryInformationProcess;
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/* Kernel32 function pointers */
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sGetQueuedCompletionStatusEx pGetQueuedCompletionStatusEx;
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/* Powrprof.dll function pointer */
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sPowerRegisterSuspendResumeNotification pPowerRegisterSuspendResumeNotification;
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/* User32.dll function pointer */
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sSetWinEventHook pSetWinEventHook;
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void uv_winapi_init(void) {
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HMODULE ntdll_module;
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HMODULE powrprof_module;
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HMODULE user32_module;
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HMODULE kernel32_module;
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ntdll_module = GetModuleHandleA("ntdll.dll");
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if (ntdll_module == NULL) {
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uv_fatal_error(GetLastError(), "GetModuleHandleA");
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}
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pRtlGetVersion = (sRtlGetVersion) GetProcAddress(ntdll_module,
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"RtlGetVersion");
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pRtlNtStatusToDosError = (sRtlNtStatusToDosError) GetProcAddress(
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ntdll_module,
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"RtlNtStatusToDosError");
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if (pRtlNtStatusToDosError == NULL) {
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uv_fatal_error(GetLastError(), "GetProcAddress");
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}
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pNtDeviceIoControlFile = (sNtDeviceIoControlFile) GetProcAddress(
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ntdll_module,
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"NtDeviceIoControlFile");
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if (pNtDeviceIoControlFile == NULL) {
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uv_fatal_error(GetLastError(), "GetProcAddress");
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}
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pNtQueryInformationFile = (sNtQueryInformationFile) GetProcAddress(
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ntdll_module,
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"NtQueryInformationFile");
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if (pNtQueryInformationFile == NULL) {
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uv_fatal_error(GetLastError(), "GetProcAddress");
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}
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pNtSetInformationFile = (sNtSetInformationFile) GetProcAddress(
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ntdll_module,
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"NtSetInformationFile");
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if (pNtSetInformationFile == NULL) {
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uv_fatal_error(GetLastError(), "GetProcAddress");
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}
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pNtQueryVolumeInformationFile = (sNtQueryVolumeInformationFile)
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GetProcAddress(ntdll_module, "NtQueryVolumeInformationFile");
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if (pNtQueryVolumeInformationFile == NULL) {
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uv_fatal_error(GetLastError(), "GetProcAddress");
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}
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pNtQueryDirectoryFile = (sNtQueryDirectoryFile)
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GetProcAddress(ntdll_module, "NtQueryDirectoryFile");
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if (pNtQueryVolumeInformationFile == NULL) {
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uv_fatal_error(GetLastError(), "GetProcAddress");
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}
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pNtQuerySystemInformation = (sNtQuerySystemInformation) GetProcAddress(
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ntdll_module,
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"NtQuerySystemInformation");
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if (pNtQuerySystemInformation == NULL) {
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uv_fatal_error(GetLastError(), "GetProcAddress");
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}
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pNtQueryInformationProcess = (sNtQueryInformationProcess) GetProcAddress(
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ntdll_module,
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"NtQueryInformationProcess");
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if (pNtQueryInformationProcess == NULL) {
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uv_fatal_error(GetLastError(), "GetProcAddress");
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}
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kernel32_module = GetModuleHandleA("kernel32.dll");
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if (kernel32_module == NULL) {
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uv_fatal_error(GetLastError(), "GetModuleHandleA");
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}
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pGetQueuedCompletionStatusEx = (sGetQueuedCompletionStatusEx) GetProcAddress(
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kernel32_module,
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"GetQueuedCompletionStatusEx");
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powrprof_module = LoadLibraryA("powrprof.dll");
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if (powrprof_module != NULL) {
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pPowerRegisterSuspendResumeNotification = (sPowerRegisterSuspendResumeNotification)
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GetProcAddress(powrprof_module, "PowerRegisterSuspendResumeNotification");
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}
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user32_module = LoadLibraryA("user32.dll");
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if (user32_module != NULL) {
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pSetWinEventHook = (sSetWinEventHook)
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GetProcAddress(user32_module, "SetWinEventHook");
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}
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}
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