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[CSRSRV]

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- Correct a misspelling 'CsrThreadAltertable' -> 'CsrThreadAlertable'.
- Introduce CSR_REPLY_CODEs instead of using hardcoded values, and use them with CSR_API_ROUTINE-type functions. They correspond to which decision CSRSRV should take after a server function is called: answer to the client or not, and perform according tasks.

[BASESRV]
Use CSR_REPLY_CODEs.

svn path=/branches/ros-csrss/; revision=57801
This commit is contained in:
Hermès Bélusca-Maïto 2012-12-04 23:01:54 +00:00
parent 24087a3b01
commit 2599e85e27
4 changed files with 57 additions and 53 deletions
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22
include/reactos/subsys/csr/csrsrv.h
View file

@ -21,7 +21,8 @@
#include "csrmsg.h"
/* TYPES **********************************************************************/
/* STRUCTURES *****************************************************************/
// Used in ntdll/csr/connect.c
#define CSR_CSRSS_SECTION_SIZE 65536
@ -102,7 +103,7 @@ typedef enum _CSR_PROCESS_FLAGS
typedef enum _CSR_THREAD_FLAGS
{
CsrThreadAltertable = 0x1,
CsrThreadAlertable = 0x1,
CsrThreadInTermination = 0x2,
CsrThreadTerminated = 0x4,
CsrThreadIsServerThread = 0x10
@ -127,6 +128,16 @@ typedef enum _CSR_DEBUG_FLAGS
CsrDebugProcessChildren = 2
} CSR_PROCESS_DEBUG_FLAGS, *PCSR_PROCESS_DEBUG_FLAGS;
typedef enum _CSR_REPLY_CODE
{
CsrReplyImmediately = 0,
CsrReplyPending = 1,
CsrReplyDeadClient = 2,
CsrReplyAlreadyDone = 3
} CSR_REPLY_CODE, *PCSR_REPLY_CODE;
/* FUNCTION TYPES AND STRUCTURES **********************************************/
/*
* Wait block
@ -162,13 +173,12 @@ typedef
NTSTATUS
(NTAPI *PCSR_API_ROUTINE)(
IN OUT PCSR_API_MESSAGE ApiMessage,
OUT PULONG Reply
IN OUT PCSR_REPLY_CODE ReplyCode OPTIONAL
);
#define CSR_API(n) \
NTSTATUS NTAPI n(IN OUT PCSR_API_MESSAGE ApiMessage, \
OUT PULONG Reply)
// IN OUT PCSR_REPLY_STATUS ReplyStatus)
IN OUT PCSR_REPLY_CODE ReplyCode OPTIONAL)
typedef
NTSTATUS
@ -228,8 +238,6 @@ typedef struct _CSR_SERVER_DLL
} CSR_SERVER_DLL, *PCSR_SERVER_DLL;
/* FUNCTION TYPES *************************************************************/
typedef
NTSTATUS
(NTAPI *PCSR_SERVER_DLL_INIT_CALLBACK)(IN PCSR_SERVER_DLL LoadedServerDll);

6
subsystems/win/basesrv/server.c
View file

@ -94,6 +94,10 @@ CSR_API(BaseSrvCreateProcess)
if (Status == STATUS_THREAD_IS_TERMINATING)
{
DPRINT1("Thread already dead\n");
/* Set the special reply value so we don't reply this message back */
*ReplyCode = CsrReplyDeadClient;
return Status;
}
@ -189,7 +193,7 @@ CSR_API(BaseSrvExitProcess)
ASSERT(CsrThread != NULL);
/* Set the special reply value so we don't reply this message back */
*Reply = 2;
*ReplyCode = CsrReplyDeadClient;
/* Remove the CSR_THREADs and CSR_PROCESS */
return CsrDestroyProcess(&CsrThread->ClientId,

50
subsystems/win32/csrsrv/api.c
View file

@ -52,8 +52,7 @@ CsrCallServerFromServer(IN PCSR_API_MESSAGE ReceiveMsg,
ULONG ServerId;
PCSR_SERVER_DLL ServerDll;
ULONG ApiId;
ULONG Reply;
NTSTATUS Status;
CSR_REPLY_CODE ReplyCode = CsrReplyImmediately;
/* Get the Server ID */
ServerId = CSR_API_NUMBER_TO_SERVER_ID(ReceiveMsg->ApiNumber);
@ -97,12 +96,8 @@ CsrCallServerFromServer(IN PCSR_API_MESSAGE ReceiveMsg,
/* Validation complete, start SEH */
_SEH2_TRY
{
/* Call the API and get the result */
/// CsrApiCallHandler(ReplyMsg, /*ProcessData*/ &ReplyCode); ///
Status = (ServerDll->DispatchTable[ApiId])(ReceiveMsg, &Reply);
/* Return the result, no matter what it is */
ReplyMsg->Status = Status;
/* Call the API, get the reply code and return the result */
ReplyMsg->Status = ServerDll->DispatchTable[ApiId](ReceiveMsg, &ReplyCode);
}
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
{
@ -350,6 +345,7 @@ CsrApiRequestThread(IN PVOID Parameter)
LARGE_INTEGER TimeOut;
PCSR_THREAD CurrentThread, CsrThread;
NTSTATUS Status;
CSR_REPLY_CODE ReplyCode;
PCSR_API_MESSAGE ReplyMsg;
CSR_API_MESSAGE ReceiveMsg;
PCSR_PROCESS CsrProcess;
@ -358,7 +354,7 @@ CsrApiRequestThread(IN PVOID Parameter)
PCSR_SERVER_DLL ServerDll;
PCLIENT_DIED_MSG ClientDiedMsg;
PDBGKM_MSG DebugMessage;
ULONG ServerId, ApiId, Reply, MessageType, i;
ULONG ServerId, ApiId, MessageType, i;
HANDLE ReplyPort;
/* Setup LPC loop port and message */
@ -453,8 +449,9 @@ CsrApiRequestThread(IN PVOID Parameter)
{
/* Handle the Connection Request */
CsrApiHandleConnectionRequest(&ReceiveMsg);
ReplyPort = CsrApiPort;
ReplyMsg = NULL;
ReplyPort = CsrApiPort;
continue;
}
@ -550,8 +547,9 @@ CsrApiRequestThread(IN PVOID Parameter)
DPRINT1("CSRSS: %lx is invalid ServerDllIndex (%08x)\n",
ServerId, ServerDll);
DbgBreakPoint();
ReplyPort = CsrApiPort;
ReplyMsg = NULL;
ReplyPort = CsrApiPort;
continue;
}
@ -565,6 +563,7 @@ CsrApiRequestThread(IN PVOID Parameter)
DPRINT1("CSRSS: %lx is invalid ApiTableIndex for %Z\n",
CSR_API_NUMBER_TO_API_ID(ReceiveMsg.ApiNumber),
&ServerDll->Name);
ReplyPort = CsrApiPort;
ReplyMsg = NULL;
continue;
@ -589,10 +588,10 @@ CsrApiRequestThread(IN PVOID Parameter)
/* Make sure we have enough threads */
CsrpCheckRequestThreads();
/* Call the API and get the result */
/* Call the API and get the reply code */
ReplyMsg = NULL;
ReplyPort = CsrApiPort;
ServerDll->DispatchTable[ApiId](&ReceiveMsg, &Reply);
ServerDll->DispatchTable[ApiId](&ReceiveMsg, &ReplyCode);
/* Increase the static thread count */
_InterlockedIncrement(&CsrpStaticThreadCount);
@ -644,6 +643,7 @@ CsrApiRequestThread(IN PVOID Parameter)
/* Release the lock and keep looping */
CsrReleaseProcessLock();
ReplyMsg = NULL;
ReplyPort = CsrApiPort;
continue;
@ -807,36 +807,40 @@ CsrApiRequestThread(IN PVOID Parameter)
Teb->CsrClientThread = CsrThread;
/* Call the API and get the result */
Reply = 0;
ServerDll->DispatchTable[ApiId](&ReceiveMsg, &Reply);
/* Call the API, get the reply code and return the result */
ReplyCode = CsrReplyImmediately;
ReplyMsg->Status = ServerDll->DispatchTable[ApiId](&ReceiveMsg, &ReplyCode);
/* Increase the static thread count */
_InterlockedIncrement(&CsrpStaticThreadCount);
Teb->CsrClientThread = CurrentThread;
if (Reply == 3)
if (ReplyCode == CsrReplyAlreadyDone)
{
ReplyMsg = NULL;
if (ReceiveMsg.CsrCaptureData)
{
CsrReleaseCapturedArguments(&ReceiveMsg);
}
CsrDereferenceThread(CsrThread);
ReplyMsg = NULL;
ReplyPort = CsrApiPort;
CsrDereferenceThread(CsrThread);
}
else if (Reply == 2)
else if (ReplyCode == CsrReplyDeadClient)
{
/* Reply to the death message */
NtReplyPort(ReplyPort, &ReplyMsg->Header);
ReplyPort = CsrApiPort;
/* Reply back to the API port now */
ReplyMsg = NULL;
ReplyPort = CsrApiPort;
CsrDereferenceThread(CsrThread);
}
else if (Reply == 1)
else if (ReplyCode == CsrReplyPending)
{
ReplyPort = CsrApiPort;
ReplyMsg = NULL;
ReplyPort = CsrApiPort;
}
else
{

32
subsystems/win32/csrsrv/server.c
View file

@ -253,7 +253,7 @@ LoadFailed:
* @param ApiMessage
* Pointer to the CSR API Message for this request.
*
* @param Reply
* @param ReplyCode
* Optional reply to this request.
*
* @return STATUS_SUCCESS in case of success, STATUS_INVALID_PARAMETER
@ -262,10 +262,7 @@ LoadFailed:
* @remarks None.
*
*--*/
NTSTATUS
NTAPI
CsrSrvClientConnect(IN OUT PCSR_API_MESSAGE ApiMessage,
IN OUT PULONG Reply OPTIONAL)
CSR_API(CsrSrvClientConnect)
{
NTSTATUS Status;
PCSR_CLIENT_CONNECT ClientConnect = &ApiMessage->Data.CsrClientConnect;
@ -273,7 +270,7 @@ CsrSrvClientConnect(IN OUT PCSR_API_MESSAGE ApiMessage,
PCSR_PROCESS CurrentProcess = CsrGetClientThread()->Process;
/* Set default reply */
*Reply = 0;
*ReplyCode = CsrReplyImmediately;
/* Validate the ServerID */
if (ClientConnect->ServerId >= CSR_SERVER_DLL_MAX)
@ -498,7 +495,7 @@ CsrSrvAttachSharedSection(IN PCSR_PROCESS CsrProcess OPTIONAL,
* @param ApiMessage
* Pointer to the CSR API Message for this request.
*
* @param Reply
* @param ReplyCode
* Pointer to an optional reply to this request.
*
* @return STATUS_SUCCESS.
@ -506,15 +503,12 @@ CsrSrvAttachSharedSection(IN PCSR_PROCESS CsrProcess OPTIONAL,
* @remarks None.
*
*--*/
NTSTATUS
NTAPI
CsrSrvIdentifyAlertableThread(IN OUT PCSR_API_MESSAGE ApiMessage,
IN OUT PULONG Reply)
CSR_API(CsrSrvIdentifyAlertableThread)
{
PCSR_THREAD CsrThread = CsrGetClientThread();
/* Set the alertable flag */
CsrThread->Flags |= CsrThreadAltertable;
CsrThread->Flags |= CsrThreadAlertable;
/* Return success */
return STATUS_SUCCESS;
@ -529,7 +523,7 @@ CsrSrvIdentifyAlertableThread(IN OUT PCSR_API_MESSAGE ApiMessage,
* @param ApiMessage
* Pointer to the CSR API Message for this request.
*
* @param Reply
* @param ReplyCode
* Pointer to an optional reply to this request.
*
* @return STATUS_SUCCESS.
@ -537,10 +531,7 @@ CsrSrvIdentifyAlertableThread(IN OUT PCSR_API_MESSAGE ApiMessage,
* @remarks None.
*
*--*/
NTSTATUS
NTAPI
CsrSrvSetPriorityClass(IN OUT PCSR_API_MESSAGE ApiMessage,
IN OUT PULONG Reply)
CSR_API(CsrSrvSetPriorityClass)
{
/* Deprecated */
return STATUS_SUCCESS;
@ -557,7 +548,7 @@ CsrSrvSetPriorityClass(IN OUT PCSR_API_MESSAGE ApiMessage,
* @param ApiMessage
* Pointer to the CSR API Message for this request.
*
* @param Reply
* @param ReplyCode
* Pointer to an optional reply to this request.
*
* @return STATUS_INVALID_PARAMETER.
@ -566,10 +557,7 @@ CsrSrvSetPriorityClass(IN OUT PCSR_API_MESSAGE ApiMessage,
* return success.
*
*--*/
NTSTATUS
NTAPI
CsrSrvUnusedFunction(IN OUT PCSR_API_MESSAGE ApiMessage,
IN OUT PULONG Reply)
CSR_API(CsrSrvUnusedFunction)
{
/* Deprecated */
return STATUS_INVALID_PARAMETER;