Sweden-Number/dlls/mstask/task_scheduler.c

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/*
* Copyright (C) 2008 Google (Roy Shea)
* Copyright (C) 2018 Dmitry Timoshkov
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdarg.h>
#define COBJMACROS
#include "windef.h"
#include "winbase.h"
#include "initguid.h"
#include "objbase.h"
#include "taskschd.h"
#include "mstask.h"
#include "mstask_private.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(mstask);
typedef struct
{
ITaskScheduler ITaskScheduler_iface;
LONG ref;
ITaskService *service;
} TaskSchedulerImpl;
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typedef struct
{
IEnumWorkItems IEnumWorkItems_iface;
LONG ref;
HANDLE handle;
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} EnumWorkItemsImpl;
static inline TaskSchedulerImpl *impl_from_ITaskScheduler(ITaskScheduler *iface)
{
return CONTAINING_RECORD(iface, TaskSchedulerImpl, ITaskScheduler_iface);
}
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static inline EnumWorkItemsImpl *impl_from_IEnumWorkItems(IEnumWorkItems *iface)
{
return CONTAINING_RECORD(iface, EnumWorkItemsImpl, IEnumWorkItems_iface);
}
static void TaskSchedulerDestructor(TaskSchedulerImpl *This)
{
TRACE("%p\n", This);
ITaskService_Release(This->service);
heap_free(This);
InterlockedDecrement(&dll_ref);
}
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static HRESULT WINAPI EnumWorkItems_QueryInterface(IEnumWorkItems *iface, REFIID riid, void **obj)
{
EnumWorkItemsImpl *This = impl_from_IEnumWorkItems(iface);
TRACE("(%p)->(%s %p)\n", This, debugstr_guid(riid), obj);
if (IsEqualGUID(riid, &IID_IEnumWorkItems) || IsEqualGUID(riid, &IID_IUnknown))
{
*obj = &This->IEnumWorkItems_iface;
IEnumWorkItems_AddRef(iface);
return S_OK;
}
*obj = NULL;
return E_NOINTERFACE;
}
static ULONG WINAPI EnumWorkItems_AddRef(IEnumWorkItems *iface)
{
EnumWorkItemsImpl *This = impl_from_IEnumWorkItems(iface);
ULONG ref = InterlockedIncrement(&This->ref);
TRACE("(%p)->(%lu)\n", This, ref);
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return ref;
}
static ULONG WINAPI EnumWorkItems_Release(IEnumWorkItems *iface)
{
EnumWorkItemsImpl *This = impl_from_IEnumWorkItems(iface);
ULONG ref = InterlockedDecrement(&This->ref);
TRACE("(%p)->(%lu)\n", This, ref);
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if (ref == 0)
{
if (This->handle != INVALID_HANDLE_VALUE)
FindClose(This->handle);
heap_free(This);
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InterlockedDecrement(&dll_ref);
}
return ref;
}
static void free_list(LPWSTR *list, LONG count)
{
LONG i;
for (i = 0; i < count; i++)
CoTaskMemFree(list[i]);
CoTaskMemFree(list);
}
static inline BOOL is_file(const WIN32_FIND_DATAW *data)
{
return !(data->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY);
}
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static HRESULT WINAPI EnumWorkItems_Next(IEnumWorkItems *iface, ULONG count, LPWSTR **names, ULONG *fetched)
{
EnumWorkItemsImpl *This = impl_from_IEnumWorkItems(iface);
WCHAR path[MAX_PATH];
WIN32_FIND_DATAW data;
ULONG enumerated, allocated, dummy;
LPWSTR *list;
HRESULT hr = S_FALSE;
TRACE("(%p)->(%lu %p %p)\n", This, count, names, fetched);
if (!count || !names || (!fetched && count > 1)) return E_INVALIDARG;
if (!fetched) fetched = &dummy;
*names = NULL;
*fetched = 0;
enumerated = 0;
list = NULL;
if (This->handle == INVALID_HANDLE_VALUE)
{
GetWindowsDirectoryW(path, MAX_PATH);
lstrcatW(path, L"\\Tasks\\*");
This->handle = FindFirstFileW(path, &data);
if (This->handle == INVALID_HANDLE_VALUE)
return S_FALSE;
}
else
{
if (!FindNextFileW(This->handle, &data))
return S_FALSE;
}
allocated = 64;
list = CoTaskMemAlloc(allocated * sizeof(list[0]));
if (!list) return E_OUTOFMEMORY;
do
{
if (is_file(&data))
{
if (enumerated >= allocated)
{
LPWSTR *new_list;
allocated *= 2;
new_list = CoTaskMemRealloc(list, allocated * sizeof(list[0]));
if (!new_list)
{
hr = E_OUTOFMEMORY;
break;
}
list = new_list;
}
list[enumerated] = CoTaskMemAlloc((lstrlenW(data.cFileName) + 1) * sizeof(WCHAR));
if (!list[enumerated])
{
hr = E_OUTOFMEMORY;
break;
}
lstrcpyW(list[enumerated], data.cFileName);
enumerated++;
if (enumerated >= count)
{
hr = S_OK;
break;
}
}
} while (FindNextFileW(This->handle, &data));
if (FAILED(hr))
free_list(list, enumerated);
else
{
*fetched = enumerated;
*names = list;
}
return hr;
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}
static HRESULT WINAPI EnumWorkItems_Skip(IEnumWorkItems *iface, ULONG count)
{
LPWSTR *names;
ULONG fetched;
HRESULT hr;
TRACE("(%p)->(%lu)\n", iface, count);
hr = EnumWorkItems_Next(iface, count, &names, &fetched);
if (SUCCEEDED(hr))
free_list(names, fetched);
return hr;
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}
static HRESULT WINAPI EnumWorkItems_Reset(IEnumWorkItems *iface)
{
EnumWorkItemsImpl *This = impl_from_IEnumWorkItems(iface);
TRACE("(%p)\n", This);
if (This->handle != INVALID_HANDLE_VALUE)
{
FindClose(This->handle);
This->handle = INVALID_HANDLE_VALUE;
}
return S_OK;
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}
static HRESULT WINAPI EnumWorkItems_Clone(IEnumWorkItems *iface, IEnumWorkItems **cloned)
{
EnumWorkItemsImpl *This = impl_from_IEnumWorkItems(iface);
FIXME("(%p)->(%p): stub\n", This, cloned);
return E_NOTIMPL;
}
static const IEnumWorkItemsVtbl EnumWorkItemsVtbl = {
EnumWorkItems_QueryInterface,
EnumWorkItems_AddRef,
EnumWorkItems_Release,
EnumWorkItems_Next,
EnumWorkItems_Skip,
EnumWorkItems_Reset,
EnumWorkItems_Clone
};
static HRESULT create_task_enum(IEnumWorkItems **ret)
{
EnumWorkItemsImpl *tasks;
*ret = NULL;
tasks = heap_alloc(sizeof(*tasks));
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if (!tasks)
return E_OUTOFMEMORY;
tasks->IEnumWorkItems_iface.lpVtbl = &EnumWorkItemsVtbl;
tasks->ref = 1;
tasks->handle = INVALID_HANDLE_VALUE;
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*ret = &tasks->IEnumWorkItems_iface;
InterlockedIncrement(&dll_ref);
return S_OK;
}
static HRESULT WINAPI MSTASK_ITaskScheduler_QueryInterface(
ITaskScheduler* iface,
REFIID riid,
void **ppvObject)
{
TaskSchedulerImpl * This = impl_from_ITaskScheduler(iface);
TRACE("IID: %s\n", debugstr_guid(riid));
if (IsEqualGUID(riid, &IID_IUnknown) ||
IsEqualGUID(riid, &IID_ITaskScheduler))
{
*ppvObject = &This->ITaskScheduler_iface;
ITaskScheduler_AddRef(iface);
return S_OK;
}
*ppvObject = NULL;
return E_NOINTERFACE;
}
static ULONG WINAPI MSTASK_ITaskScheduler_AddRef(
ITaskScheduler* iface)
{
TaskSchedulerImpl *This = impl_from_ITaskScheduler(iface);
TRACE("\n");
return InterlockedIncrement(&This->ref);
}
static ULONG WINAPI MSTASK_ITaskScheduler_Release(
ITaskScheduler* iface)
{
TaskSchedulerImpl * This = impl_from_ITaskScheduler(iface);
ULONG ref;
TRACE("\n");
ref = InterlockedDecrement(&This->ref);
if (ref == 0)
TaskSchedulerDestructor(This);
return ref;
}
static HRESULT WINAPI MSTASK_ITaskScheduler_SetTargetComputer(
ITaskScheduler *iface, LPCWSTR comp_name)
{
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TaskSchedulerImpl *This = impl_from_ITaskScheduler(iface);
VARIANT v_null, v_comp;
HRESULT hr;
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TRACE("(%p)->(%s)\n", This, debugstr_w(comp_name));
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V_VT(&v_null) = VT_NULL;
V_VT(&v_comp) = VT_BSTR;
V_BSTR(&v_comp) = SysAllocString(comp_name);
hr = ITaskService_Connect(This->service, v_comp, v_null, v_null, v_null);
SysFreeString(V_BSTR(&v_comp));
return hr;
}
static HRESULT WINAPI MSTASK_ITaskScheduler_GetTargetComputer(
ITaskScheduler *iface, LPWSTR *comp_name)
{
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TaskSchedulerImpl *This = impl_from_ITaskScheduler(iface);
BSTR bstr;
WCHAR *buffer;
HRESULT hr;
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TRACE("(%p)->(%p)\n", This, comp_name);
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if (!comp_name)
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return E_INVALIDARG;
hr = ITaskService_get_TargetServer(This->service, &bstr);
if (hr != S_OK) return hr;
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/* extra space for two '\' and a zero */
buffer = CoTaskMemAlloc((SysStringLen(bstr) + 3) * sizeof(WCHAR));
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if (buffer)
{
buffer[0] = '\\';
buffer[1] = '\\';
lstrcpyW(buffer + 2, bstr);
*comp_name = buffer;
hr = S_OK;
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}
else
{
*comp_name = NULL;
hr = E_OUTOFMEMORY;
}
SysFreeString(bstr);
return hr;
}
static HRESULT WINAPI MSTASK_ITaskScheduler_Enum(
ITaskScheduler* iface,
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IEnumWorkItems **tasks)
{
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TaskSchedulerImpl *This = impl_from_ITaskScheduler(iface);
TRACE("(%p)->(%p)\n", This, tasks);
if (!tasks)
return E_INVALIDARG;
return create_task_enum(tasks);
}
static HRESULT WINAPI MSTASK_ITaskScheduler_Activate(ITaskScheduler *iface,
LPCWSTR task_name, REFIID riid, IUnknown **unknown)
{
ITask *task;
IPersistFile *pfile;
HRESULT hr;
TRACE("%p, %s, %s, %p\n", iface, debugstr_w(task_name), debugstr_guid(riid), unknown);
hr = ITaskScheduler_NewWorkItem(iface, task_name, &CLSID_CTask, riid, (IUnknown **)&task);
if (hr != S_OK) return hr;
hr = ITask_QueryInterface(task, &IID_IPersistFile, (void **)&pfile);
if (hr == S_OK)
{
WCHAR *curfile;
hr = IPersistFile_GetCurFile(pfile, &curfile);
if (hr == S_OK)
{
hr = IPersistFile_Load(pfile, curfile, STGM_READ | STGM_SHARE_DENY_WRITE);
CoTaskMemFree(curfile);
}
IPersistFile_Release(pfile);
}
if (hr == S_OK)
*unknown = (IUnknown *)task;
else
ITask_Release(task);
return hr;
}
static HRESULT WINAPI MSTASK_ITaskScheduler_Delete(ITaskScheduler *iface, LPCWSTR name)
{
WCHAR task_name[MAX_PATH];
TRACE("%p, %s\n", iface, debugstr_w(name));
if (wcschr(name, '.')) return E_INVALIDARG;
GetWindowsDirectoryW(task_name, MAX_PATH);
lstrcatW(task_name, L"\\Tasks\\");
lstrcatW(task_name, name);
lstrcatW(task_name, L".job");
if (!DeleteFileW(task_name))
return HRESULT_FROM_WIN32(GetLastError());
return S_OK;
}
static HRESULT WINAPI MSTASK_ITaskScheduler_NewWorkItem(
ITaskScheduler* iface,
LPCWSTR task_name,
REFCLSID rclsid,
REFIID riid,
IUnknown **task)
{
TaskSchedulerImpl *This = impl_from_ITaskScheduler(iface);
TRACE("(%p, %s, %s, %s, %p)\n", iface, debugstr_w(task_name),
debugstr_guid(rclsid), debugstr_guid(riid), task);
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if (!IsEqualGUID(rclsid, &CLSID_CTask))
return CLASS_E_CLASSNOTAVAILABLE;
if (!IsEqualGUID(riid, &IID_ITask))
return E_NOINTERFACE;
return TaskConstructor(This->service, task_name, (ITask **)task);
}
static HRESULT WINAPI MSTASK_ITaskScheduler_AddWorkItem(ITaskScheduler *iface, LPCWSTR name, IScheduledWorkItem *item)
{
WCHAR task_name[MAX_PATH];
IPersistFile *pfile;
HRESULT hr;
TRACE("%p, %s, %p\n", iface, debugstr_w(name), item);
if (wcschr(name, '.')) return E_INVALIDARG;
GetWindowsDirectoryW(task_name, MAX_PATH);
lstrcatW(task_name, L"\\Tasks\\");
lstrcatW(task_name, name);
lstrcatW(task_name, L".job");
hr = IScheduledWorkItem_QueryInterface(item, &IID_IPersistFile, (void **)&pfile);
if (hr == S_OK)
{
hr = IPersistFile_Save(pfile, task_name, TRUE);
IPersistFile_Release(pfile);
}
return hr;
}
static HRESULT WINAPI MSTASK_ITaskScheduler_IsOfType(
ITaskScheduler* iface,
LPCWSTR pwszName,
REFIID riid)
{
FIXME("%p, %s, %s: stub\n", iface, debugstr_w(pwszName),
debugstr_guid(riid));
return E_NOTIMPL;
}
static const ITaskSchedulerVtbl MSTASK_ITaskSchedulerVtbl =
{
MSTASK_ITaskScheduler_QueryInterface,
MSTASK_ITaskScheduler_AddRef,
MSTASK_ITaskScheduler_Release,
MSTASK_ITaskScheduler_SetTargetComputer,
MSTASK_ITaskScheduler_GetTargetComputer,
MSTASK_ITaskScheduler_Enum,
MSTASK_ITaskScheduler_Activate,
MSTASK_ITaskScheduler_Delete,
MSTASK_ITaskScheduler_NewWorkItem,
MSTASK_ITaskScheduler_AddWorkItem,
MSTASK_ITaskScheduler_IsOfType
};
HRESULT TaskSchedulerConstructor(LPVOID *ppObj)
{
TaskSchedulerImpl *This;
ITaskService *service;
VARIANT v_null;
HRESULT hr;
TRACE("(%p)\n", ppObj);
hr = CoCreateInstance(&CLSID_TaskScheduler, NULL, CLSCTX_INPROC_SERVER, &IID_ITaskService, (void **)&service);
if (hr != S_OK) return hr;
V_VT(&v_null) = VT_NULL;
hr = ITaskService_Connect(service, v_null, v_null, v_null, v_null);
if (hr != S_OK)
{
ITaskService_Release(service);
return hr;
}
This = heap_alloc(sizeof(*This));
if (!This)
{
ITaskService_Release(service);
return E_OUTOFMEMORY;
}
This->ITaskScheduler_iface.lpVtbl = &MSTASK_ITaskSchedulerVtbl;
This->service = service;
This->ref = 1;
*ppObj = &This->ITaskScheduler_iface;
InterlockedIncrement(&dll_ref);
return S_OK;
}