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[CHEW]

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- Fix formatting, comments.
- Delete an empty directory.

svn path=/trunk/; revision=43386
This commit is contained in:
Dmitry Gorbachev 2009-10-12 03:27:45 +00:00
parent ac4cdf694c
commit 27f05c27a8
4 changed files with 88 additions and 76 deletions
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11
reactos/include/reactos/chew/chew.h
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@ -1,7 +1,7 @@
/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
* FILE: include/chew/chew.h
* FILE: include/reactos/chew/chew.h
* PURPOSE: Common Highlevel Executive Worker
*
* PROGRAMMERS: arty (ayerkes@speakeasy.net)
@ -14,15 +14,16 @@
* Initialize CHEW, given a device object (since IoAllocateWorkItem relies on
* it).
*/
VOID ChewInit( PDEVICE_OBJECT DeviceObject );
VOID ChewInit(PDEVICE_OBJECT DeviceObject);
/**
* Shutdown CHEW, waits for remaining work items.
*/
VOID ChewShutdown();
VOID ChewShutdown(VOID);
/**
* Creates and queues a work item.
*/
BOOLEAN ChewCreate
( VOID (*Worker)(PVOID), PVOID WorkerContext );
BOOLEAN ChewCreate(VOID (*Worker)(PVOID), PVOID WorkerContext);
#endif/*_REACTOS_CHEW_H*/

0
reactos/include/reactos/chew/chew/.gitignore vendored
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2
reactos/lib/drivers/chew/chew.rbuild
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@ -4,4 +4,4 @@
<define name="_NTOSKRNL_" />
<include base="chew">include</include>
<file>workqueue.c</file>
</module>
</module>

151
reactos/lib/drivers/chew/workqueue.c
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@ -1,82 +1,93 @@
/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
* FILE: drivers/lib/chew/workqueue.c
* PURPOSE: Common Highlevel Executive Worker
*
* PROGRAMMERS: arty (ayerkes@speakeasy.net)
*/
#include <ntddk.h>
#include <chew/chew.h>
#define NDEBUG
/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
* FILE: lib/drivers/chew/workqueue.c
* PURPOSE: Common Highlevel Executive Worker
*
* PROGRAMMERS: arty (ayerkes@speakeasy.net)
*/
#include <ntddk.h>
#include <chew/chew.h>
#define NDEBUG
//#include <debug.h>
#define FOURCC(w,x,y,z) (((w) << 24) | ((x) << 16) | ((y) << 8) | (z))
#define CHEW_TAG FOURCC('C','H','E','W')
PDEVICE_OBJECT WorkQueueDevice;
LIST_ENTRY WorkQueue;
#define CHEW_TAG FOURCC('C','H','E','W')
PDEVICE_OBJECT WorkQueueDevice;
LIST_ENTRY WorkQueue;
KSPIN_LOCK WorkQueueLock;
KEVENT WorkQueueClear;
typedef struct _WORK_ITEM {
LIST_ENTRY Entry;
PIO_WORKITEM WorkItem;
VOID (*Worker)( PVOID WorkerContext );
PVOID WorkerContext;
} WORK_ITEM, *PWORK_ITEM;
VOID ChewInit( PDEVICE_OBJECT DeviceObject ) {
WorkQueueDevice = DeviceObject;
InitializeListHead( &WorkQueue );
KeInitializeSpinLock( &WorkQueueLock );
KeInitializeEvent(&WorkQueueClear, NotificationEvent, TRUE);
}
VOID ChewShutdown() {
KeWaitForSingleObject(&WorkQueueClear, Executive, KernelMode, FALSE, NULL);
}
VOID NTAPI ChewWorkItem( PDEVICE_OBJECT DeviceObject, PVOID ChewItem ) {
KEVENT WorkQueueClear;
typedef struct _WORK_ITEM
{
LIST_ENTRY Entry;
PIO_WORKITEM WorkItem;
VOID (*Worker)(PVOID WorkerContext);
PVOID WorkerContext;
} WORK_ITEM, *PWORK_ITEM;
VOID ChewInit(PDEVICE_OBJECT DeviceObject)
{
WorkQueueDevice = DeviceObject;
InitializeListHead(&WorkQueue);
KeInitializeSpinLock(&WorkQueueLock);
KeInitializeEvent(&WorkQueueClear, NotificationEvent, TRUE);
}
VOID ChewShutdown(VOID)
{
KeWaitForSingleObject(&WorkQueueClear, Executive, KernelMode, FALSE, NULL);
}
VOID NTAPI ChewWorkItem(PDEVICE_OBJECT DeviceObject, PVOID ChewItem)
{
PWORK_ITEM WorkItem = ChewItem;
KIRQL OldIrql;
WorkItem->Worker( WorkItem->WorkerContext );
IoFreeWorkItem( WorkItem->WorkItem );
KIRQL OldIrql;
WorkItem->Worker(WorkItem->WorkerContext);
IoFreeWorkItem(WorkItem->WorkItem);
KeAcquireSpinLock(&WorkQueueLock, &OldIrql);
RemoveEntryList(&WorkItem->Entry);
if (IsListEmpty(&WorkQueue))
KeSetEvent(&WorkQueueClear, 0, FALSE);
KeReleaseSpinLock(&WorkQueueLock, OldIrql);
ExFreePoolWithTag(WorkItem, CHEW_TAG);
}
BOOLEAN ChewCreate
( VOID (*Worker)( PVOID ), PVOID WorkerContext ) {
ExFreePoolWithTag(WorkItem, CHEW_TAG);
}
BOOLEAN ChewCreate(VOID (*Worker)(PVOID), PVOID WorkerContext)
{
PWORK_ITEM Item;
Item = ExAllocatePoolWithTag
( NonPagedPool,
sizeof( WORK_ITEM ),
CHEW_TAG );
if( Item ) {
Item->WorkItem = IoAllocateWorkItem( WorkQueueDevice );
if( !Item->WorkItem ) {
ExFreePool( Item );
return FALSE;
}
Item->Worker = Worker;
Item->WorkerContext = WorkerContext;
ExInterlockedInsertTailList( &WorkQueue, &Item->Entry, &WorkQueueLock );
KeResetEvent(&WorkQueueClear);
IoQueueWorkItem( Item->WorkItem, ChewWorkItem, DelayedWorkQueue, Item );
return TRUE;
} else {
return FALSE;
}
}
Item = ExAllocatePoolWithTag(NonPagedPool,
sizeof(WORK_ITEM),
CHEW_TAG);
if (Item)
{
Item->WorkItem = IoAllocateWorkItem(WorkQueueDevice);
if (!Item->WorkItem)
{
ExFreePool(Item);
return FALSE;
}
Item->Worker = Worker;
Item->WorkerContext = WorkerContext;
ExInterlockedInsertTailList(&WorkQueue, &Item->Entry, &WorkQueueLock);
KeResetEvent(&WorkQueueClear);
IoQueueWorkItem(Item->WorkItem, ChewWorkItem, DelayedWorkQueue, Item);
return TRUE;
}
else
{
return FALSE;
}
}