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46a5454b79
dwControlsAccepted is initialized a few lines earlier. Signed-off-by: Dmitry Timoshkov <dmitry@baikal.ru>
426 lines
12 KiB
C
426 lines
12 KiB
C
/*
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* Task Scheduler Service
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*
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* Copyright 2014 Dmitry Timoshkov
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <stdarg.h>
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#include "windef.h"
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#include "winbase.h"
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#include "winsvc.h"
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#include "rpc.h"
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#include "atsvc.h"
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#include "schrpc.h"
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#include "wine/debug.h"
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#include "schedsvc_private.h"
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WINE_DEFAULT_DEBUG_CHANNEL(schedsvc);
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static const WCHAR scheduleW[] = {'S','c','h','e','d','u','l','e',0};
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static SERVICE_STATUS_HANDLE schedsvc_handle;
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static HANDLE done_event, hjob_queue;
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void add_process_to_queue(HANDLE process)
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{
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if (!AssignProcessToJobObject(hjob_queue, process))
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ERR("AssignProcessToJobObject failed\n");
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}
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static DWORD WINAPI tasks_monitor_thread(void *arg)
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{
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static const WCHAR tasksW[] = { '\\','T','a','s','k','s','\\',0 };
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WCHAR path[MAX_PATH];
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HANDLE htasks, hport, htimer;
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JOBOBJECT_ASSOCIATE_COMPLETION_PORT job_info;
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OVERLAPPED ov;
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LARGE_INTEGER period;
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struct
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{
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FILE_NOTIFY_INFORMATION data;
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WCHAR name_buffer[MAX_PATH];
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} info;
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/* the buffer must be DWORD aligned */
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C_ASSERT(!(sizeof(info) & 3));
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TRACE("Starting...\n");
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load_at_tasks();
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check_missed_task_time();
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htimer = CreateWaitableTimerW(NULL, FALSE, NULL);
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if (htimer == NULL)
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{
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ERR("CreateWaitableTimer failed\n");
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return -1;
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}
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GetWindowsDirectoryW(path, MAX_PATH);
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lstrcatW(path, tasksW);
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/* Just in case it's an old Wine prefix with missing c:\windows\tasks */
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CreateDirectoryW(path, NULL);
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htasks = CreateFileW(path, FILE_LIST_DIRECTORY, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
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NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OVERLAPPED, NULL);
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if (htasks == INVALID_HANDLE_VALUE)
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{
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ERR("Couldn't start monitoring %s for tasks, error %lu\n", debugstr_w(path), GetLastError());
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return -1;
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}
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hjob_queue = CreateJobObjectW(NULL, NULL);
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if (!hjob_queue)
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{
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ERR("CreateJobObject failed\n");
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return -1;
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}
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hport = CreateIoCompletionPort(INVALID_HANDLE_VALUE, NULL, 0, 1);
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if (!hport)
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{
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ERR("CreateIoCompletionPort failed\n");
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return -1;
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}
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job_info.CompletionKey = hjob_queue;
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job_info.CompletionPort = hport;
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if (!SetInformationJobObject(hjob_queue, JobObjectAssociateCompletionPortInformation, &job_info, sizeof(job_info)))
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{
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ERR("SetInformationJobObject failed\n");
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return -1;
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}
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memset(&ov, 0, sizeof(ov));
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ov.hEvent = CreateEventW(NULL, FALSE, FALSE, NULL);
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memset(&info, 0, sizeof(info));
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ReadDirectoryChangesW(htasks, &info, sizeof(info), FALSE,
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FILE_NOTIFY_CHANGE_FILE_NAME | FILE_NOTIFY_CHANGE_SIZE | FILE_NOTIFY_CHANGE_LAST_WRITE,
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NULL, &ov, NULL);
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for (;;)
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{
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HANDLE events[4];
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DWORD ret;
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events[0] = done_event;
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events[1] = htimer;
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events[2] = hport;
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events[3] = ov.hEvent;
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ret = WaitForMultipleObjects(4, events, FALSE, INFINITE);
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/* Done event */
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if (ret == WAIT_OBJECT_0) break;
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/* Next runtime timer */
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if (ret == WAIT_OBJECT_0 + 1)
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{
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check_task_time();
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continue;
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}
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/* Job queue */
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if (ret == WAIT_OBJECT_0 + 2)
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{
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DWORD msg;
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ULONG_PTR dummy, pid;
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if (GetQueuedCompletionStatus(hport, &msg, &dummy, (OVERLAPPED **)&pid, 0))
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{
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if (msg == JOB_OBJECT_MSG_EXIT_PROCESS)
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{
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TRACE("got message: process %#Ix has terminated\n", pid);
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update_process_status(pid);
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}
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else
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FIXME("got message %#lx from the job\n", msg);
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}
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continue;
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}
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if (info.data.NextEntryOffset)
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FIXME("got multiple entries\n");
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/* Directory change notification */
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info.data.FileName[info.data.FileNameLength/sizeof(WCHAR)] = 0;
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switch (info.data.Action)
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{
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case FILE_ACTION_ADDED:
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TRACE("FILE_ACTION_ADDED %s\n", debugstr_w(info.data.FileName));
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GetWindowsDirectoryW(path, MAX_PATH);
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lstrcatW(path, tasksW);
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lstrcatW(path, info.data.FileName);
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add_job(path);
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break;
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case FILE_ACTION_REMOVED:
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TRACE("FILE_ACTION_REMOVED %s\n", debugstr_w(info.data.FileName));
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GetWindowsDirectoryW(path, MAX_PATH);
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lstrcatW(path, tasksW);
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lstrcatW(path, info.data.FileName);
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remove_job(path);
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break;
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case FILE_ACTION_MODIFIED:
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TRACE("FILE_ACTION_MODIFIED %s\n", debugstr_w(info.data.FileName));
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GetWindowsDirectoryW(path, MAX_PATH);
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lstrcatW(path, tasksW);
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lstrcatW(path, info.data.FileName);
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remove_job(path);
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add_job(path);
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break;
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default:
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FIXME("%s: action %#lx not handled\n", debugstr_w(info.data.FileName), info.data.Action);
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break;
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}
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check_task_state();
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if (get_next_runtime(&period))
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{
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if (!SetWaitableTimer(htimer, &period, 0, NULL, NULL, FALSE))
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ERR("SetWaitableTimer failed\n");
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}
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memset(&info, 0, sizeof(info));
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if (!ReadDirectoryChangesW(htasks, &info, sizeof(info), FALSE,
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FILE_NOTIFY_CHANGE_FILE_NAME | FILE_NOTIFY_CHANGE_SIZE | FILE_NOTIFY_CHANGE_LAST_WRITE,
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NULL, &ov, NULL)) break;
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}
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CancelWaitableTimer(htimer);
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CloseHandle(htimer);
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CloseHandle(ov.hEvent);
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CloseHandle(hport);
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CloseHandle(hjob_queue);
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CloseHandle(htasks);
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TRACE("Finished.\n");
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return 0;
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}
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void schedsvc_auto_start(void)
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{
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static DWORD start_type;
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SC_HANDLE scm, service;
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QUERY_SERVICE_CONFIGW *cfg;
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DWORD cfg_size;
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if (start_type == SERVICE_AUTO_START) return;
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TRACE("changing service start type to SERVICE_AUTO_START\n");
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scm = OpenSCManagerW(NULL, NULL, 0);
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if (!scm)
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{
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WARN("failed to open SCM (%lu)\n", GetLastError());
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return;
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}
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service = OpenServiceW(scm, scheduleW, SERVICE_QUERY_CONFIG | SERVICE_CHANGE_CONFIG);
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if (service)
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{
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if (!QueryServiceConfigW(service, NULL, 0, &cfg_size) && GetLastError() == ERROR_INSUFFICIENT_BUFFER)
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{
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cfg = malloc(cfg_size);
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if (cfg)
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{
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if (QueryServiceConfigW(service, cfg, cfg_size, &cfg_size))
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{
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start_type = cfg->dwStartType;
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if (start_type != SERVICE_AUTO_START)
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{
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if (ChangeServiceConfigW(service, SERVICE_NO_CHANGE, SERVICE_AUTO_START, SERVICE_NO_CHANGE,
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NULL, NULL, NULL, NULL, NULL, NULL, NULL))
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start_type = SERVICE_AUTO_START;
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}
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}
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free(cfg);
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}
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}
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else
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WARN("failed to query service config (%lu)\n", GetLastError());
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CloseServiceHandle(service);
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}
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else
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WARN("failed to open service (%lu)\n", GetLastError());
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CloseServiceHandle(scm);
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}
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static void schedsvc_update_status(DWORD state)
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{
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SERVICE_STATUS status;
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status.dwServiceType = SERVICE_WIN32;
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status.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_SHUTDOWN;
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status.dwWin32ExitCode = 0;
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status.dwServiceSpecificExitCode = 0;
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status.dwCheckPoint = 0;
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status.dwWaitHint = 0;
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status.dwCurrentState = state;
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SetServiceStatus(schedsvc_handle, &status);
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}
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static void WINAPI schedsvc_handler(DWORD control)
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{
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TRACE("%#lx\n", control);
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switch (control)
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{
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case SERVICE_CONTROL_STOP:
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case SERVICE_CONTROL_SHUTDOWN:
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schedsvc_update_status(SERVICE_STOP_PENDING);
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SetEvent(done_event);
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break;
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default:
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schedsvc_update_status(SERVICE_RUNNING);
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break;
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}
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}
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static RPC_BINDING_VECTOR *sched_bindings;
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static RPC_STATUS RPC_init(void)
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{
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static WCHAR ncacn_npW[] = { 'n','c','a','c','n','_','n','p',0 };
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static WCHAR endpoint_npW[] = { '\\','p','i','p','e','\\','a','t','s','v','c',0 };
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static WCHAR ncalrpcW[] = { 'n','c','a','l','r','p','c',0 };
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static WCHAR endpoint_lrpcW[] = { 'a','t','s','v','c',0 };
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RPC_STATUS status;
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status = RpcServerRegisterIf(ITaskSchedulerService_v1_0_s_ifspec, NULL, NULL);
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if (status != RPC_S_OK)
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{
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ERR("RpcServerRegisterIf error %#lx\n", status);
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return status;
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}
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status = RpcServerRegisterIf(atsvc_v1_0_s_ifspec, NULL, NULL);
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if (status != RPC_S_OK)
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{
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ERR("RpcServerRegisterIf error %#lx\n", status);
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RpcServerUnregisterIf(ITaskSchedulerService_v1_0_s_ifspec, NULL, FALSE);
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return status;
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}
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status = RpcServerUseProtseqEpW(ncacn_npW, RPC_C_PROTSEQ_MAX_REQS_DEFAULT, endpoint_npW, NULL);
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if (status != RPC_S_OK)
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{
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ERR("RpcServerUseProtseqEp error %#lx\n", status);
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return status;
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}
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status = RpcServerUseProtseqEpW(ncalrpcW, RPC_C_PROTSEQ_MAX_REQS_DEFAULT, endpoint_lrpcW, NULL);
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if (status != RPC_S_OK)
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{
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ERR("RpcServerUseProtseqEp error %#lx\n", status);
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return status;
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}
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status = RpcServerInqBindings(&sched_bindings);
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if (status != RPC_S_OK)
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{
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ERR("RpcServerInqBindings error %#lx\n", status);
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return status;
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}
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status = RpcEpRegisterW(ITaskSchedulerService_v1_0_s_ifspec, sched_bindings, NULL, NULL);
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if (status != RPC_S_OK)
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{
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ERR("RpcEpRegister error %#lx\n", status);
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return status;
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}
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status = RpcEpRegisterW(atsvc_v1_0_s_ifspec, sched_bindings, NULL, NULL);
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if (status != RPC_S_OK)
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{
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ERR("RpcEpRegister error %#lx\n", status);
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return status;
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}
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status = RpcServerListen(1, RPC_C_LISTEN_MAX_CALLS_DEFAULT, TRUE);
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if (status != RPC_S_OK)
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{
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ERR("RpcServerListen error %#lx\n", status);
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return status;
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}
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return RPC_S_OK;
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}
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static void RPC_finish(void)
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{
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RpcMgmtStopServerListening(NULL);
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RpcEpUnregister(ITaskSchedulerService_v1_0_s_ifspec, sched_bindings, NULL);
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RpcEpUnregister(atsvc_v1_0_s_ifspec, sched_bindings, NULL);
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RpcBindingVectorFree(&sched_bindings);
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RpcServerUnregisterIf(ITaskSchedulerService_v1_0_s_ifspec, NULL, FALSE);
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RpcServerUnregisterIf(atsvc_v1_0_s_ifspec, NULL, FALSE);
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}
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void WINAPI ServiceMain(DWORD argc, LPWSTR *argv)
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{
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HANDLE thread;
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DWORD tid;
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TRACE("starting Task Scheduler Service\n");
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schedsvc_handle = RegisterServiceCtrlHandlerW(scheduleW, schedsvc_handler);
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if (!schedsvc_handle)
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{
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ERR("RegisterServiceCtrlHandler error %ld\n", GetLastError());
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return;
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}
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schedsvc_update_status(SERVICE_START_PENDING);
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done_event = CreateEventW(NULL, TRUE, FALSE, NULL);
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thread = CreateThread(NULL, 0, tasks_monitor_thread, NULL, 0, &tid);
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if (thread && RPC_init() == RPC_S_OK)
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{
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schedsvc_update_status(SERVICE_RUNNING);
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WaitForSingleObject(thread, INFINITE);
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CloseHandle(thread);
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RPC_finish();
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}
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schedsvc_update_status(SERVICE_STOPPED);
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TRACE("exiting Task Scheduler Service\n");
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}
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void __RPC_FAR * __RPC_USER MIDL_user_allocate(SIZE_T len)
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{
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return malloc(len);
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}
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void __RPC_USER MIDL_user_free(void __RPC_FAR * ptr)
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{
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free(ptr);
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}
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