ppsspp/Core/HLE/sceKernelMsgPipe.cpp
Unknown W. Brackets 1cb7a88137 Don't use a dynamic string for wait debugging.
Happens in release, and shows up on the profiler.
Not huge, but should save ~0.5% of cpu time.
2013-01-26 11:29:19 -08:00

630 lines
19 KiB
C++

// Copyright (c) 2012- PPSSPP Project.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 2.0 or later versions.
// This program 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 General Public License 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official git repository and contact information can be found at
// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
#include "HLE.h"
#include "sceKernel.h"
#include "sceKernelMsgPipe.h"
#include "sceKernelThread.h"
#define SCE_KERNEL_MPA_THFIFO_S 0x0000
#define SCE_KERNEL_MPA_THPRI_S 0x0100
#define SCE_KERNEL_MPA_THFIFO_R 0x0000
#define SCE_KERNEL_MPA_THPRI_R 0x1000
#define SCE_KERNEL_MPW_FULL 0
#define SCE_KERNEL_MPW_ASAP 1
struct NativeMsgPipe
{
SceSize size;
char name[32];
SceUInt attr;
int bufSize;
int freeSize;
int numSendWaitThreads;
int numReceiveWaitThreads;
};
struct MsgPipeWaitingThread
{
SceUID id;
u32 bufAddr;
u32 bufSize;
u32 freeSize;
int waitMode;
u32 transferredBytesAddr;
};
struct MsgPipe : public KernelObject
{
const char *GetName() {return nmp.name;}
const char *GetTypeName() {return "MsgPipe";}
static u32 GetMissingErrorCode() { return SCE_KERNEL_ERROR_UNKNOWN_MPPID; }
int GetIDType() const { return SCE_KERNEL_TMID_Mpipe; }
MsgPipe() : buffer(NULL) {}
~MsgPipe()
{
if (buffer != NULL)
delete [] buffer;
}
void AddWaitingThread(std::vector<MsgPipeWaitingThread> &list, SceUID id, u32 addr, u32 size, int waitMode, u32 transferredBytesAddr, bool usePrio)
{
MsgPipeWaitingThread thread = { id, addr, size, size, waitMode, transferredBytesAddr };
if (usePrio)
{
for (std::vector<MsgPipeWaitingThread>::iterator it = list.begin(); it != list.end(); it++)
{
if (__KernelGetThreadPrio(id) >= __KernelGetThreadPrio((*it).id))
{
list.insert(it, thread);
break;
}
}
}
else
{
list.push_back(thread);
}
}
void AddSendWaitingThread(SceUID id, u32 addr, u32 size, int waitMode, u32 transferredBytesAddr)
{
bool usePrio = ((nmp.attr & SCE_KERNEL_MPA_THPRI_S) != 0);
AddWaitingThread(sendWaitingThreads, id, addr, size, waitMode, transferredBytesAddr, usePrio);
}
void AddReceiveWaitingThread(SceUID id, u32 addr, u32 size, int waitMode, u32 transferredBytesAddr)
{
bool usePrio = ((nmp.attr & SCE_KERNEL_MPA_THPRI_R) != 0);
AddWaitingThread(receiveWaitingThreads, id, addr, size, waitMode, transferredBytesAddr, usePrio);
}
void CheckSendThreads()
{
if (sendWaitingThreads.empty())
return;
MsgPipeWaitingThread *thread = &sendWaitingThreads.front();
if ((u32) nmp.freeSize >= thread->bufSize)
{
// Put all the data to the buffer
memcpy(buffer + (nmp.bufSize - nmp.freeSize), Memory::GetPointer(thread->bufAddr), thread->bufSize);
Memory::Write_U32(thread->bufSize, thread->transferredBytesAddr);
nmp.freeSize -= thread->bufSize;
__KernelResumeThreadFromWait(thread->id);
sendWaitingThreads.erase(sendWaitingThreads.begin());
CheckReceiveThreads();
}
else if (thread->waitMode == SCE_KERNEL_MPW_ASAP && nmp.freeSize != 0)
{
// Put as much data as possible into the buffer
memcpy(buffer + (nmp.bufSize - nmp.freeSize), Memory::GetPointer(thread->bufAddr), nmp.freeSize);
Memory::Write_U32(nmp.freeSize, thread->transferredBytesAddr);
nmp.freeSize = 0;
__KernelResumeThreadFromWait(thread->id);
receiveWaitingThreads.erase(receiveWaitingThreads.begin());
CheckReceiveThreads();
}
}
// This function should be only ran when the temporary buffer size is not 0 (otherwise, data is copied directly to the threads)
void CheckReceiveThreads()
{
if (receiveWaitingThreads.empty())
return;
MsgPipeWaitingThread *thread = &receiveWaitingThreads.front();
if ((u32) nmp.bufSize - (u32) nmp.freeSize >= thread->bufSize)
{
// Get the needed data from the buffer
Memory::Memcpy(thread->bufAddr, buffer, thread->bufSize);
// Put the unused data at the start of the buffer
memmove(buffer, buffer + thread->bufSize, nmp.bufSize - nmp.freeSize);
Memory::Write_U32(thread->bufSize, thread->transferredBytesAddr);
nmp.freeSize += thread->bufSize;
__KernelResumeThreadFromWait(thread->id);
receiveWaitingThreads.erase(receiveWaitingThreads.begin());
CheckSendThreads();
}
else if (thread->waitMode == SCE_KERNEL_MPW_ASAP && nmp.freeSize != nmp.bufSize)
{
// Get all the data from the buffer
Memory::Memcpy(thread->bufAddr, buffer, nmp.bufSize - nmp.freeSize);
Memory::Write_U32(nmp.bufSize - nmp.freeSize, thread->transferredBytesAddr);
nmp.freeSize = nmp.bufSize;
__KernelResumeThreadFromWait(thread->id);
receiveWaitingThreads.erase(receiveWaitingThreads.begin());
CheckSendThreads();
}
}
virtual void DoState(PointerWrap &p)
{
p.Do(nmp);
MsgPipeWaitingThread mpwt1 = {0}, mpwt2 = {0};
p.Do(sendWaitingThreads, mpwt1);
p.Do(receiveWaitingThreads, mpwt2);
bool hasBuffer = buffer != NULL;
p.Do(hasBuffer);
if (hasBuffer)
{
if (buffer == NULL)
buffer = new u8[nmp.bufSize];
p.DoArray(buffer, nmp.bufSize);
}
p.DoMarker("MsgPipe");
}
NativeMsgPipe nmp;
std::vector<MsgPipeWaitingThread> sendWaitingThreads;
std::vector<MsgPipeWaitingThread> receiveWaitingThreads;
u8 *buffer;
};
KernelObject *__KernelMsgPipeObject()
{
return new MsgPipe;
}
void sceKernelCreateMsgPipe()
{
const char *name = Memory::GetCharPointer(PARAM(0));
int memoryPartition = PARAM(1);
SceUInt attr = PARAM(2);
int size = PARAM(3);
int opt = PARAM(4);
MsgPipe *m = new MsgPipe();
SceUID id = kernelObjects.Create(m);
m->nmp.size = sizeof(NativeMsgPipe);
strncpy(m->nmp.name, name, sizeof(m->nmp.name));
m->nmp.attr = attr;
m->nmp.bufSize = size;
m->nmp.freeSize = size;
m->nmp.numSendWaitThreads = 0;
m->nmp.numReceiveWaitThreads = 0;
m->buffer = 0;
if (size != 0)
{
m->buffer = new u8[size];
}
DEBUG_LOG(HLE, "%d=sceKernelCreateMsgPipe(%s, part=%d, attr=%08x, size=%d, opt=%08x)", id, name, memoryPartition, attr, size, opt);
RETURN(id);
}
void sceKernelDeleteMsgPipe()
{
SceUID uid = PARAM(0);
u32 error;
MsgPipe *m = kernelObjects.Get<MsgPipe>(uid, error);
if (!m)
{
ERROR_LOG(HLE, "sceKernelDeleteMsgPipe(%i) - ERROR %08x", uid, error);
RETURN(error);
return;
}
for (u32 i = 0; i < m->sendWaitingThreads.size(); i++)
{
__KernelResumeThreadFromWait(m->sendWaitingThreads[i].id);
}
for (u32 i = 0; i < m->receiveWaitingThreads.size(); i++)
{
__KernelResumeThreadFromWait(m->receiveWaitingThreads[i].id);
}
DEBUG_LOG(HLE, "sceKernelDeleteMsgPipe(%i)", uid);
RETURN(kernelObjects.Destroy<MsgPipe>(uid));
}
void __KernelSendMsgPipe(MsgPipe *m, u32 sendBufAddr, u32 sendSize, int waitMode, u32 resultAddr, u32 timeoutPtr, bool cbEnabled, bool pool)
{
u32 curSendAddr = sendBufAddr;
if (m->nmp.bufSize == 0)
{
while (!m->receiveWaitingThreads.empty())
{
MsgPipeWaitingThread *thread = &m->receiveWaitingThreads.front();
if (thread->freeSize > sendSize)
{
Memory::Memcpy(thread->bufAddr + (thread->bufSize - thread->freeSize), Memory::GetPointer(curSendAddr), sendSize);
thread->freeSize -= sendSize;
curSendAddr += sendSize;
sendSize = 0;
if (thread->waitMode == SCE_KERNEL_MPW_ASAP)
{
Memory::Write_U32(thread->bufSize - thread->freeSize, thread->transferredBytesAddr);
__KernelResumeThreadFromWait(thread->id);
m->receiveWaitingThreads.erase(m->receiveWaitingThreads.begin());
}
break;
}
else if (thread->freeSize == sendSize)
{
Memory::Memcpy(thread->bufAddr + (thread->bufSize - thread->freeSize), Memory::GetPointer(curSendAddr), sendSize);
Memory::Write_U32(thread->bufSize, thread->transferredBytesAddr);
__KernelResumeThreadFromWait(thread->id);
m->receiveWaitingThreads.erase(m->receiveWaitingThreads.begin());
curSendAddr += sendSize;
sendSize = 0;
break;
}
else
{
Memory::Memcpy(thread->bufAddr + (thread->bufSize - thread->freeSize), Memory::GetPointer(curSendAddr), thread->freeSize);
sendSize -= thread->freeSize;
curSendAddr += thread->freeSize;
Memory::Write_U32(thread->bufSize, thread->transferredBytesAddr);
__KernelResumeThreadFromWait(thread->id);
m->receiveWaitingThreads.erase(m->receiveWaitingThreads.begin());
}
}
// If there is still data to send and (we want to send all of it or we didn't send anything)
if (sendSize != 0 && (waitMode != SCE_KERNEL_MPW_ASAP || curSendAddr == sendBufAddr))
{
if (pool)
{
RETURN(SCE_KERNEL_ERROR_MPP_FULL);
return;
}
else
{
m->AddSendWaitingThread(__KernelGetCurThread(), curSendAddr, sendSize, waitMode, resultAddr);
RETURN(0);
__KernelWaitCurThread(WAITTYPE_MSGPIPE, 0, 0, 0, cbEnabled, "msgpipe waited");
return;
}
}
}
else
{
if (sendSize <= (u32) m->nmp.freeSize)
{
memcpy(m->buffer + (m->nmp.bufSize - m->nmp.freeSize), Memory::GetPointer(sendBufAddr), sendSize);
m->nmp.freeSize -= sendSize;
curSendAddr = sendBufAddr + sendSize;
sendSize = 0;
}
else if (waitMode == SCE_KERNEL_MPW_ASAP && m->nmp.freeSize != 0)
{
memcpy(m->buffer + (m->nmp.bufSize - m->nmp.freeSize), Memory::GetPointer(sendBufAddr), m->nmp.freeSize);
curSendAddr = sendBufAddr + m->nmp.freeSize;
sendSize -= m->nmp.freeSize;
m->nmp.freeSize = 0;
}
else
{
if (pool)
{
RETURN(SCE_KERNEL_ERROR_MPP_FULL);
return;
}
else
{
m->AddSendWaitingThread(__KernelGetCurThread(), curSendAddr, sendSize, waitMode, resultAddr);
RETURN(0);
__KernelWaitCurThread(WAITTYPE_MSGPIPE, 0, 0, 0, cbEnabled, "msgpipe waited");
return;
}
}
if (curSendAddr != sendBufAddr)
{
m->CheckReceiveThreads();
}
}
Memory::Write_U32(curSendAddr - sendBufAddr, resultAddr);
RETURN(0);
}
void sceKernelSendMsgPipe()
{
SceUInt uid = PARAM(0);
u32 sendBufAddr = PARAM(1);
u32 sendSize = PARAM(2);
int waitMode = PARAM(3);
u32 resultAddr = PARAM(4);
u32 timeoutPtr = PARAM(5);
u32 error;
MsgPipe *m = kernelObjects.Get<MsgPipe>(uid, error);
if (!m) {
ERROR_LOG(HLE, "sceKernelSendMsgPipe(%i) - ERROR %08x", uid, error);
RETURN(error);
return;
}
DEBUG_LOG(HLE, "sceKernelSendMsgPipe(id=%i, addr=%08x, size=%i, mode=%i, result=%08x, timeout=%08x)", uid, sendBufAddr, sendSize, waitMode, resultAddr, timeoutPtr);
__KernelSendMsgPipe(m, sendBufAddr, sendSize, waitMode, resultAddr, timeoutPtr, false, false);
}
void sceKernelSendMsgPipeCB()
{
SceUInt uid = PARAM(0);
u32 sendBufAddr = PARAM(1);
u32 sendSize = PARAM(2);
int waitMode = PARAM(3);
u32 resultAddr = PARAM(4);
u32 timeoutPtr = PARAM(5);
u32 error;
MsgPipe *m = kernelObjects.Get<MsgPipe>(uid, error);
if (!m) {
ERROR_LOG(HLE, "sceKernelSendMsgPipeCB(%i) - ERROR %08x", uid, error);
RETURN(error);
return;
}
DEBUG_LOG(HLE, "sceKernelSendMsgPipeCB(id=%i, addr=%08x, size=%i, mode=%i, result=%08x, timeout=%08x)", uid, sendBufAddr, sendSize, waitMode, resultAddr, timeoutPtr);
__KernelSendMsgPipe(m, sendBufAddr, sendSize, waitMode, resultAddr, timeoutPtr, true, false);
__KernelCheckCallbacks();
}
void sceKernelTrySendMsgPipe()
{
SceUInt uid = PARAM(0);
u32 sendBufAddr = PARAM(1);
u32 sendSize = PARAM(2);
int waitMode = PARAM(3);
u32 resultAddr = PARAM(4);
u32 error;
MsgPipe *m = kernelObjects.Get<MsgPipe>(uid, error);
if (!m) {
ERROR_LOG(HLE, "sceKernelTrySendMsgPipe(%i) - ERROR %08x", uid, error);
RETURN(error);
return;
}
DEBUG_LOG(HLE, "sceKernelTrySendMsgPipeCB(id=%i, addr=%08x, size=%i, mode=%i, result=%08x)", uid, sendBufAddr, sendSize, waitMode, resultAddr);
__KernelSendMsgPipe(m, sendBufAddr, sendSize, waitMode, resultAddr, 0, false, true);
}
void __KernelReceiveMsgPipe(MsgPipe *m, u32 receiveBufAddr, u32 receiveSize, int waitMode, u32 resultAddr, u32 timeoutPtr, bool cbEnabled, bool pool)
{
u32 curReceiveAddr = receiveBufAddr;
// MsgPipe buffer size is 0, receiving directly from waiting send threads
if (m->nmp.bufSize == 0)
{
// While they're still sending waiting threads (which can send data)
while (!m->sendWaitingThreads.empty())
{
MsgPipeWaitingThread *thread = &m->sendWaitingThreads.front();
// Sending thread has more data than we have to receive: retrieve just the amount of data we want
if (thread->bufSize - thread->freeSize > receiveSize)
{
Memory::Memcpy(curReceiveAddr, Memory::GetPointer(thread->bufAddr), receiveSize);
thread->freeSize += receiveSize;
// Move still available data at the beginning of the sending thread buffer
Memory::Memcpy(thread->bufAddr, Memory::GetPointer(thread->bufAddr + receiveSize), thread->bufSize - thread->freeSize);
curReceiveAddr += receiveSize;
receiveSize = 0;
// The sending thread mode is ASAP: we have sent some data so restart it even though its buffer isn't empty
if (thread->waitMode == SCE_KERNEL_MPW_ASAP)
{
Memory::Write_U32(thread->bufSize - thread->freeSize, thread->transferredBytesAddr);
__KernelResumeThreadFromWait(thread->id);
m->sendWaitingThreads.erase(m->sendWaitingThreads.begin());
}
break;
}
// Sending thread wants to send the same amount of data as we want to retrieve: get the data and resume thread
else if (thread->bufSize - thread->freeSize == receiveSize)
{
Memory::Memcpy(curReceiveAddr, Memory::GetPointer(thread->bufAddr), receiveSize);
Memory::Write_U32(thread->bufSize, thread->transferredBytesAddr);
__KernelResumeThreadFromWait(thread->id);
m->sendWaitingThreads.erase(m->sendWaitingThreads.begin());
curReceiveAddr += receiveSize;
receiveSize = 0;
break;
}
// Not enough data in the sending thread: get the data available and restart the sending thread, then loop
else
{
Memory::Memcpy(curReceiveAddr, Memory::GetPointer(thread->bufAddr), thread->bufSize - thread->freeSize);
receiveSize -= thread->bufSize - thread->freeSize;
curReceiveAddr += thread->bufSize - thread->freeSize;
Memory::Write_U32(thread->bufSize, thread->transferredBytesAddr);
__KernelResumeThreadFromWait(thread->id);
m->sendWaitingThreads.erase(m->sendWaitingThreads.begin());
}
}
// All data hasn't been received and (mode isn't ASAP or nothing was received)
if (receiveSize != 0 && (waitMode != SCE_KERNEL_MPW_ASAP || curReceiveAddr == receiveBufAddr))
{
if (pool)
{
RETURN(SCE_KERNEL_ERROR_MPP_EMPTY);
return;
}
else
{
m->AddReceiveWaitingThread(__KernelGetCurThread(), curReceiveAddr, receiveSize, waitMode, resultAddr);
RETURN(0);
__KernelWaitCurThread(WAITTYPE_MSGPIPE, 0, 0, 0, cbEnabled, "msgpipe waited");
return;
}
}
}
// Getting data from the MsgPipe buffer
else
{
// Enough data in the buffer: copy just the needed amount of data
if (receiveSize <= (u32) m->nmp.bufSize - (u32) m->nmp.freeSize)
{
Memory::Memcpy(receiveBufAddr, m->buffer, receiveSize);
m->nmp.freeSize += receiveSize;
memmove(m->buffer, m->buffer + receiveSize, m->nmp.bufSize - m->nmp.freeSize);
curReceiveAddr = receiveBufAddr + receiveSize;
receiveSize = 0;
}
// Else, if mode is ASAP and there's at list 1 available byte of data: copy all the available data
else if (waitMode == SCE_KERNEL_MPW_ASAP && m->nmp.freeSize != m->nmp.bufSize)
{
Memory::Memcpy(receiveBufAddr, m->buffer, m->nmp.bufSize - m->nmp.freeSize);
receiveSize -= m->nmp.bufSize - m->nmp.freeSize;
curReceiveAddr = receiveBufAddr + m->nmp.bufSize - m->nmp.freeSize;
m->nmp.freeSize = m->nmp.bufSize;
}
else
{
if (pool)
{
RETURN(SCE_KERNEL_ERROR_MPP_EMPTY);
return;
}
else
{
m->AddReceiveWaitingThread(__KernelGetCurThread(), curReceiveAddr, receiveSize, waitMode, resultAddr);
RETURN(0);
__KernelWaitCurThread(WAITTYPE_MSGPIPE, 0, 0, 0, cbEnabled, "msgpipe waited");
return;
}
}
if (curReceiveAddr != receiveBufAddr)
{
m->CheckSendThreads();
}
}
Memory::Write_U32(curReceiveAddr - receiveBufAddr, resultAddr);
RETURN(0);
}
void sceKernelReceiveMsgPipe()
{
SceUID uid = PARAM(0);
u32 receiveBufAddr = PARAM(1);
u32 receiveSize = PARAM(2);
int waitMode = PARAM(3);
u32 resultAddr = PARAM(4);
u32 timeoutPtr = PARAM(5);
u32 error;
MsgPipe *m = kernelObjects.Get<MsgPipe>(uid, error);
if (!m) {
ERROR_LOG(HLE, "sceKernelReceiveMsgPipe(%i) - ERROR %08x", uid, error);
RETURN(error);
return;
}
DEBUG_LOG(HLE, "sceKernelReceiveMsgPipe(%i, %08x, %i, %i, %08x, %08x)", uid, receiveBufAddr, receiveSize, waitMode, resultAddr, timeoutPtr);
__KernelReceiveMsgPipe(m, receiveBufAddr, receiveSize, waitMode, resultAddr, timeoutPtr, false, false);
}
void sceKernelReceiveMsgPipeCB()
{
SceUID uid = PARAM(0);
u32 receiveBufAddr = PARAM(1);
u32 receiveSize = PARAM(2);
int waitMode = PARAM(3);
u32 resultAddr = PARAM(4);
u32 timeoutPtr = PARAM(5);
u32 error;
MsgPipe *m = kernelObjects.Get<MsgPipe>(uid, error);
if (!m) {
ERROR_LOG(HLE, "sceKernelReceiveMsgPipeCB(%i) - ERROR %08x", uid, error);
RETURN(error);
return;
}
DEBUG_LOG(HLE, "sceKernelReceiveMsgPipeCB(%i, %08x, %i, %i, %08x, %08x)", uid, receiveBufAddr, receiveSize, waitMode, resultAddr, timeoutPtr);
__KernelReceiveMsgPipe(m, receiveBufAddr, receiveSize, waitMode, resultAddr, timeoutPtr, true, false);
}
void sceKernelTryReceiveMsgPipe()
{
SceUID uid = PARAM(0);
u32 receiveBufAddr = PARAM(1);
u32 receiveSize = PARAM(2);
int waitMode = PARAM(3);
u32 resultAddr = PARAM(4);
u32 error;
MsgPipe *m = kernelObjects.Get<MsgPipe>(uid, error);
if (!m) {
ERROR_LOG(HLE, "sceKernelTryReceiveMsgPipe(%i) - ERROR %08x", uid, error);
RETURN(error);
return;
}
DEBUG_LOG(HLE, "sceKernelTryReceiveMsgPipe(%i, %08x, %i, %i, %08x)", uid, receiveBufAddr, receiveSize, waitMode, resultAddr);
__KernelReceiveMsgPipe(m, receiveBufAddr, receiveSize, waitMode, resultAddr, 0, false, true);
}
void sceKernelCancelMsgPipe()
{
SceUID uid = PARAM(0);
u32 numSendThreadsAddr = PARAM(1);
u32 numReceiveThreadsAddr = PARAM(2);
u32 error;
MsgPipe *m = kernelObjects.Get<MsgPipe>(uid, error);
if (!m)
{
ERROR_LOG(HLE, "sceKernelCancelMsgPipe(%i) - ERROR %08x", uid, error);
RETURN(error);
return;
}
if (m->buffer != 0)
{
delete [] m->buffer;
}
u32 count;
for (count = 0; count < m->sendWaitingThreads.size(); count++)
{
__KernelResumeThreadFromWait(m->sendWaitingThreads[count].id);
}
Memory::Write_U32(count, numSendThreadsAddr);
for (count = 0; count < m->receiveWaitingThreads.size(); count++)
{
__KernelResumeThreadFromWait(m->receiveWaitingThreads[count].id);
}
Memory::Write_U32(count, numReceiveThreadsAddr);
DEBUG_LOG(HLE, "sceKernelCancelMsgPipe(%i, %i, %i)", uid, numSendThreadsAddr, numReceiveThreadsAddr);
RETURN(0);
}
void sceKernelReferMsgPipeStatus()
{
SceUID uid = PARAM(0);
u32 msgPipeStatusAddr = PARAM(1);
DEBUG_LOG(HLE,"sceKernelReferMsgPipeStatus(%i, %08x)", uid, msgPipeStatusAddr);
u32 error;
MsgPipe *m = kernelObjects.Get<MsgPipe>(uid, error);
if (m)
{
m->nmp.numSendWaitThreads = (int) m->sendWaitingThreads.size();
m->nmp.numReceiveWaitThreads = (int) m->receiveWaitingThreads.size();
Memory::WriteStruct(msgPipeStatusAddr, &m->nmp);
RETURN(0);
}
else
{
RETURN(error);
}
}