622 lines
15 KiB
C++
622 lines
15 KiB
C++
#include "HGNamedPipe.h"
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#include "HGInc.h"
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#include "HGThread.h"
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#include <string>
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struct HGNamedPipeServerImpl
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{
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HGNamedPipeServerImpl()
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{
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#if defined(HG_CMP_MSC)
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m_hConnectEvent = NULL;
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m_hWriteEvent = NULL;
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m_hReadEvent = NULL;
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m_hProcessEvent = NULL;
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m_hPipe = INVALID_HANDLE_VALUE;
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m_clientPid = 0;
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m_thread = NULL;
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m_error = HGFALSE;
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m_break = HGFALSE;
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#else
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// TODO
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#endif
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}
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~HGNamedPipeServerImpl()
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{
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#if defined(HG_CMP_MSC)
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HGBase_CloseThread(m_thread);
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m_thread = NULL;
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CloseHandle(m_hPipe);
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m_hPipe = INVALID_HANDLE_VALUE;
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CloseHandle(m_hProcessEvent);
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m_hProcessEvent = NULL;
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CloseHandle(m_hReadEvent);
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m_hReadEvent = NULL;
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CloseHandle(m_hWriteEvent);
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m_hWriteEvent = NULL;
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CloseHandle(m_hConnectEvent);
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m_hConnectEvent = NULL;
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#else
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// TODO
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#endif
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}
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#if defined(HG_CMP_MSC)
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HANDLE m_hConnectEvent;
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HANDLE m_hWriteEvent;
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HANDLE m_hReadEvent;
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HANDLE m_hProcessEvent;
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HANDLE m_hPipe;
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DWORD m_clientPid;
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HGThread m_thread;
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HGBool m_error;
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HGBool m_break;
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#else
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// TODO
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#endif
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};
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struct HGNamedPipeClientImpl
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{
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HGNamedPipeClientImpl()
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{
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#if defined(HG_CMP_MSC)
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m_hWriteEvent = NULL;
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m_hReadEvent = NULL;
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m_hProcessEvent = NULL;
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m_hPipe = INVALID_HANDLE_VALUE;
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m_serverPid = 0;
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m_thread = NULL;
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m_error = HGFALSE;
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m_break = HGFALSE;
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#else
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// TODO
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#endif
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}
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~HGNamedPipeClientImpl()
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{
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#if defined(HG_CMP_MSC)
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HGBase_CloseThread(m_thread);
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m_thread = NULL;
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CloseHandle(m_hPipe);
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m_hPipe = INVALID_HANDLE_VALUE;
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CloseHandle(m_hProcessEvent);
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m_hProcessEvent = NULL;
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CloseHandle(m_hReadEvent);
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m_hReadEvent = NULL;
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CloseHandle(m_hWriteEvent);
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m_hWriteEvent = NULL;
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#else
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// TODO
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#endif
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}
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#if defined(HG_CMP_MSC)
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HANDLE m_hWriteEvent;
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HANDLE m_hReadEvent;
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HANDLE m_hProcessEvent;
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HANDLE m_hPipe;
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DWORD m_serverPid;
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HGThread m_thread;
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HGBool m_error;
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HGBool m_break;
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#else
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// TODO
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#endif
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};
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static void HGAPI NamedPipeServerFunc(HGThread thread, HGPointer param)
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{
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HGNamedPipeServerImpl* p = (HGNamedPipeServerImpl*)param;
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#if defined(HG_CMP_MSC)
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HANDLE handles[2];
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handles[0] = OpenProcess(SYNCHRONIZE, FALSE, p->m_clientPid);
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handles[1] = p->m_hProcessEvent;
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if (WAIT_OBJECT_0 == WaitForMultipleObjects(2, handles, FALSE, INFINITE))
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{
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p->m_error = HGTRUE;
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SetEvent(p->m_hWriteEvent);
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SetEvent(p->m_hReadEvent);
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}
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CloseHandle(handles[0]);
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#else
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// TODO
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#endif
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}
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static void NamedPipeClientFunc(HGThread thread, HGPointer param)
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{
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HGNamedPipeClientImpl* p = (HGNamedPipeClientImpl*)param;
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#if defined(HG_CMP_MSC)
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HANDLE handles[2];
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handles[0] = OpenProcess(SYNCHRONIZE, FALSE, p->m_serverPid);
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handles[1] = p->m_hProcessEvent;
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if (WAIT_OBJECT_0 == WaitForMultipleObjects(2, handles, FALSE, INFINITE))
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{
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p->m_error = HGTRUE;
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SetEvent(p->m_hWriteEvent);
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SetEvent(p->m_hReadEvent);
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}
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CloseHandle(handles[0]);
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#else
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// TODO
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#endif
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}
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HGResult HGAPI HGBase_OpenNamedPipeServer(const HGChar* pipeName, HGNamedPipeServer* server)
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{
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if (NULL == pipeName || NULL == server)
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{
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return HGBASE_ERR_INVALIDARG;
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}
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#if defined(HG_CMP_MSC)
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HANDLE hConnectEvent = CreateEventA(NULL, TRUE, FALSE, NULL);
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assert(NULL != hConnectEvent);
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HANDLE hWriteEvent = CreateEventA(NULL, TRUE, FALSE, NULL);
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assert(NULL != hWriteEvent);
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HANDLE hReadEvent = CreateEventA(NULL, TRUE, FALSE, NULL);
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assert(NULL != hReadEvent);
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HANDLE hProcessEvent = CreateEventA(NULL, TRUE, FALSE, NULL);
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assert(NULL != hProcessEvent);
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char name[256];
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sprintf(name, "\\\\.\\pipe\\%s", pipeName);
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HANDLE hPipe = CreateNamedPipeA(name, PIPE_ACCESS_DUPLEX | FILE_FLAG_FIRST_PIPE_INSTANCE | FILE_FLAG_OVERLAPPED,
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0, 1, 1024, 1024, 0, NULL);
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if (INVALID_HANDLE_VALUE == hPipe)
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{
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CloseHandle(hProcessEvent);
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CloseHandle(hReadEvent);
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CloseHandle(hWriteEvent);
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CloseHandle(hConnectEvent);
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return HGBASE_ERR_FAIL;
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}
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HGNamedPipeServerImpl* pipeServerImpl = new HGNamedPipeServerImpl;
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pipeServerImpl->m_hConnectEvent = hConnectEvent;
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pipeServerImpl->m_hWriteEvent = hWriteEvent;
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pipeServerImpl->m_hReadEvent = hReadEvent;
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pipeServerImpl->m_hProcessEvent = hProcessEvent;
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pipeServerImpl->m_hPipe = hPipe;
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*server = (HGNamedPipeServer)pipeServerImpl;
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#else
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// TODO
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#endif
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return HGBASE_ERR_OK;
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}
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HGResult HGAPI HGBase_CloseNamedPipeServer(HGNamedPipeServer server)
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{
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if (NULL == server)
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{
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return HGBASE_ERR_INVALIDARG;
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}
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HGNamedPipeServerImpl* pipeServerImpl = (HGNamedPipeServerImpl*)server;
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delete pipeServerImpl;
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return HGBASE_ERR_OK;
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}
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HGResult HGAPI HGBase_NamedPipeServerWrite(HGNamedPipeServer server, const HGByte* data, HGUInt size, HGUInt* writeSize)
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{
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if (NULL == server || NULL == data || 0 == size)
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{
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return HGBASE_ERR_INVALIDARG;
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}
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HGNamedPipeServerImpl* pipeServerImpl = (HGNamedPipeServerImpl*)server;
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#if defined(HG_CMP_MSC)
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if (NULL == pipeServerImpl->m_thread || pipeServerImpl->m_error || pipeServerImpl->m_break)
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{
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return HGBASE_ERR_FAIL;
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}
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OVERLAPPED overlapped = { 0 };
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overlapped.hEvent = pipeServerImpl->m_hWriteEvent;
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DWORD dwNumerOfWriteBytes = 0;
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if (!WriteFile(pipeServerImpl->m_hPipe, data, size, &dwNumerOfWriteBytes, &overlapped))
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{
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if (ERROR_IO_PENDING != GetLastError())
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{
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// д<><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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return HGBASE_ERR_FAIL;
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}
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WaitForSingleObject(pipeServerImpl->m_hWriteEvent, INFINITE);
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if (!GetOverlappedResult(pipeServerImpl->m_hPipe, &overlapped, &dwNumerOfWriteBytes, TRUE))
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{
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// <20>ֶ<EFBFBD>ֹͣ
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return HGBASE_ERR_FAIL;
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}
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}
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if (NULL != writeSize)
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*writeSize = dwNumerOfWriteBytes;
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#else
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// TODO
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#endif
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return HGBASE_ERR_OK;
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}
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HGResult HGAPI HGBase_NamedPipeServerRead(HGNamedPipeServer server, HGByte* data, HGUInt size, HGUInt* readSize)
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{
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if (NULL == server || NULL == data || 0 == size)
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{
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return HGBASE_ERR_INVALIDARG;
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}
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HGNamedPipeServerImpl* pipeServerImpl = (HGNamedPipeServerImpl*)server;
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#if defined(HG_CMP_MSC)
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if (NULL == pipeServerImpl->m_thread) // δ<><CEB4><EFBFBD><EFBFBD>
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{
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OVERLAPPED overlapped = { 0 };
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overlapped.hEvent = pipeServerImpl->m_hConnectEvent;
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if (!ConnectNamedPipe(pipeServerImpl->m_hPipe, &overlapped))
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{
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DWORD err = GetLastError();
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if (ERROR_IO_PENDING != err && ERROR_PIPE_CONNECTED != err)
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{
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// <20>ȴ<EFBFBD><C8B4><EFBFBD><EFBFBD>ӳ<EFBFBD><D3B3><EFBFBD>
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return HGBASE_ERR_FAIL;
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}
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if (ERROR_IO_PENDING == err)
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{
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// <20>ȴ<EFBFBD><C8B4><EFBFBD><EFBFBD><EFBFBD>
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WaitForSingleObject(pipeServerImpl->m_hConnectEvent, INFINITE);
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DWORD dwTransferBytes = 0; // <20><>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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if (!GetOverlappedResult(pipeServerImpl->m_hPipe, &overlapped, &dwTransferBytes, TRUE))
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{
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// <20>ֶ<EFBFBD>ֹͣ
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return HGBASE_ERR_FAIL;
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}
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}
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}
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// <20><>ȡ<EFBFBD>Է<EFBFBD><D4B7><EFBFBD><EFBFBD><EFBFBD>ID
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memset(&overlapped, 0, sizeof(OVERLAPPED));
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overlapped.hEvent = pipeServerImpl->m_hReadEvent;
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DWORD dwNumerOfReadBytes = 0;
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DWORD clientPid = 0;
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if (!ReadFile(pipeServerImpl->m_hPipe, &clientPid, sizeof(DWORD), &dwNumerOfReadBytes, &overlapped))
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{
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if (ERROR_IO_PENDING != GetLastError())
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{
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// <20><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD>
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return HGBASE_ERR_FAIL;
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}
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WaitForSingleObject(pipeServerImpl->m_hReadEvent, INFINITE);
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if (!GetOverlappedResult(pipeServerImpl->m_hPipe, &overlapped, &dwNumerOfReadBytes, TRUE))
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{
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// <20>ֶ<EFBFBD>ֹͣ
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return HGBASE_ERR_FAIL;
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}
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}
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if (sizeof(DWORD) != dwNumerOfReadBytes || 0 == clientPid)
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{
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return HGBASE_ERR_FAIL;
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}
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// <20><><EFBFBD>ͼ<EFBFBD><CDBC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ID
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memset(&overlapped, 0, sizeof(OVERLAPPED));
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overlapped.hEvent = pipeServerImpl->m_hWriteEvent;
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DWORD dwNumerOfWriteBytes = 0;
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DWORD serverPid = GetCurrentProcessId();
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if (!WriteFile(pipeServerImpl->m_hPipe, &serverPid, sizeof(DWORD), &dwNumerOfWriteBytes, &overlapped))
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{
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if (ERROR_IO_PENDING != GetLastError())
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{
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// д<><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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return HGBASE_ERR_FAIL;
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}
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WaitForSingleObject(pipeServerImpl->m_hWriteEvent, INFINITE);
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if (!GetOverlappedResult(pipeServerImpl->m_hPipe, &overlapped, &dwNumerOfWriteBytes, TRUE))
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{
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// <20>ֶ<EFBFBD>ֹͣ
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return HGBASE_ERR_FAIL;
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}
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}
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if (sizeof(DWORD) != dwNumerOfWriteBytes)
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{
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return HGBASE_ERR_FAIL;
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}
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// <20><><EFBFBD><EFBFBD><EFBFBD>̵߳ȴ<CCB5><C8B4>Է<EFBFBD><D4B7><EFBFBD><EFBFBD><EFBFBD>ID
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pipeServerImpl->m_clientPid = clientPid;
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HGBase_OpenThread(NamedPipeServerFunc, pipeServerImpl, &pipeServerImpl->m_thread);
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assert(NULL != pipeServerImpl->m_thread);
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}
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if (pipeServerImpl->m_error || pipeServerImpl->m_break)
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{
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return HGBASE_ERR_FAIL;
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}
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OVERLAPPED overlapped = { 0 };
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overlapped.hEvent = pipeServerImpl->m_hReadEvent;
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DWORD dwNumerOfReadBytes = 0;
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if (!ReadFile(pipeServerImpl->m_hPipe, data, size, &dwNumerOfReadBytes, &overlapped))
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{
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if (ERROR_IO_PENDING != GetLastError())
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{
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// <20><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD>
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return HGBASE_ERR_FAIL;
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}
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WaitForSingleObject(pipeServerImpl->m_hReadEvent, INFINITE);
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if (!GetOverlappedResult(pipeServerImpl->m_hPipe, &overlapped, &dwNumerOfReadBytes, TRUE))
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{
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// <20>ֶ<EFBFBD>ֹͣ
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return HGBASE_ERR_FAIL;
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}
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}
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if (NULL != readSize)
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*readSize = dwNumerOfReadBytes;
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#else
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// TODO
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#endif
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return HGBASE_ERR_OK;
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}
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HGResult HGAPI HGBase_NamedPipeServerStop(HGNamedPipeServer server)
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{
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if (NULL == server)
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{
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return HGBASE_ERR_INVALIDARG;
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}
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HGNamedPipeServerImpl* pipeServerImpl = (HGNamedPipeServerImpl*)server;
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#if defined(HG_CMP_MSC)
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pipeServerImpl->m_break = HGTRUE;
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SetEvent(pipeServerImpl->m_hConnectEvent);
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SetEvent(pipeServerImpl->m_hWriteEvent);
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SetEvent(pipeServerImpl->m_hReadEvent);
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SetEvent(pipeServerImpl->m_hProcessEvent);
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#else
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// TODO
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#endif
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return HGBASE_ERR_OK;
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}
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HGResult HGAPI HGBase_OpenNamedPipeClient(const HGChar* pipeName, HGNamedPipeClient* client)
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{
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if (NULL == pipeName || NULL == client)
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{
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return HGBASE_ERR_INVALIDARG;
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}
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#if defined(HG_CMP_MSC)
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HANDLE hWriteEvent = CreateEventA(NULL, TRUE, FALSE, NULL);
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assert(NULL != hWriteEvent);
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HANDLE hReadEvent = CreateEventA(NULL, TRUE, FALSE, NULL);
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assert(NULL != hReadEvent);
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HANDLE hProcessEvent = CreateEventA(NULL, TRUE, FALSE, NULL);
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assert(NULL != hProcessEvent);
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char name[256];
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sprintf(name, "\\\\.\\pipe\\%s", pipeName);
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HANDLE hPipe = CreateFileA(name, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING,
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FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED, NULL);
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if (INVALID_HANDLE_VALUE == hPipe)
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{
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CloseHandle(hProcessEvent);
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CloseHandle(hReadEvent);
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CloseHandle(hWriteEvent);
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return HGBASE_ERR_FAIL;
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}
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// <20><><EFBFBD>ͼ<EFBFBD><CDBC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ID
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OVERLAPPED overlapped = { 0 };
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overlapped.hEvent = hWriteEvent;
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DWORD dwNumerOfWriteBytes = 0;
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DWORD clientPid = GetCurrentProcessId();
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if (!WriteFile(hPipe, &clientPid, sizeof(DWORD), &dwNumerOfWriteBytes, &overlapped))
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{
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if (ERROR_IO_PENDING != GetLastError())
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{
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// д<><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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CloseHandle(hPipe);
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CloseHandle(hProcessEvent);
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CloseHandle(hReadEvent);
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CloseHandle(hWriteEvent);
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return HGBASE_ERR_FAIL;
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}
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WaitForSingleObject(hWriteEvent, INFINITE);
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if (!GetOverlappedResult(hPipe, &overlapped, &dwNumerOfWriteBytes, TRUE))
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{
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// <20>ֶ<EFBFBD>ֹͣ
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CloseHandle(hPipe);
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CloseHandle(hProcessEvent);
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CloseHandle(hReadEvent);
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CloseHandle(hWriteEvent);
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return HGBASE_ERR_FAIL;
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}
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}
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if (sizeof(DWORD) != dwNumerOfWriteBytes)
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{
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CloseHandle(hPipe);
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CloseHandle(hProcessEvent);
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CloseHandle(hReadEvent);
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CloseHandle(hWriteEvent);
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return HGBASE_ERR_FAIL;
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}
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// <20><>ȡ<EFBFBD>Է<EFBFBD><D4B7><EFBFBD><EFBFBD><EFBFBD>ID
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memset(&overlapped, 0, sizeof(OVERLAPPED));
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overlapped.hEvent = hReadEvent;
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DWORD dwNumerOfReadBytes = 0;
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DWORD serverPid = 0;
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if (!ReadFile(hPipe, &serverPid, sizeof(DWORD), &dwNumerOfReadBytes, &overlapped))
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{
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if (ERROR_IO_PENDING != GetLastError())
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{
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// <20><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD>
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CloseHandle(hPipe);
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CloseHandle(hProcessEvent);
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CloseHandle(hReadEvent);
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CloseHandle(hWriteEvent);
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return HGBASE_ERR_FAIL;
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}
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WaitForSingleObject(hReadEvent, INFINITE);
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if (!GetOverlappedResult(hPipe, &overlapped, &dwNumerOfReadBytes, TRUE))
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{
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// <20>ֶ<EFBFBD>ֹͣ
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CloseHandle(hPipe);
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CloseHandle(hProcessEvent);
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CloseHandle(hReadEvent);
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CloseHandle(hWriteEvent);
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return HGBASE_ERR_FAIL;
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}
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}
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if (sizeof(DWORD) != dwNumerOfReadBytes || 0 == serverPid)
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{
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CloseHandle(hPipe);
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CloseHandle(hProcessEvent);
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CloseHandle(hReadEvent);
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CloseHandle(hWriteEvent);
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return HGBASE_ERR_FAIL;
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}
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// <20><><EFBFBD><EFBFBD><EFBFBD>̵߳ȴ<CCB5><C8B4>Է<EFBFBD><D4B7><EFBFBD><EFBFBD><EFBFBD>ID
|
||
|
||
HGNamedPipeClientImpl* pipeClientImpl = new HGNamedPipeClientImpl;
|
||
pipeClientImpl->m_hWriteEvent = hWriteEvent;
|
||
pipeClientImpl->m_hReadEvent = hReadEvent;
|
||
pipeClientImpl->m_hProcessEvent = hProcessEvent;
|
||
pipeClientImpl->m_hPipe = hPipe;
|
||
pipeClientImpl->m_serverPid = serverPid;
|
||
HGBase_OpenThread(NamedPipeServerFunc, pipeClientImpl, &pipeClientImpl->m_thread);
|
||
assert(NULL != pipeClientImpl->m_thread);
|
||
*client = (HGNamedPipeClient)pipeClientImpl;
|
||
#else
|
||
// TODO
|
||
#endif
|
||
return HGBASE_ERR_OK;
|
||
}
|
||
|
||
HGResult HGAPI HGBase_CloseNamedPipeClient(HGNamedPipeClient client)
|
||
{
|
||
if (NULL == client)
|
||
{
|
||
return HGBASE_ERR_INVALIDARG;
|
||
}
|
||
|
||
HGNamedPipeClientImpl* pipeClientImpl = (HGNamedPipeClientImpl*)client;
|
||
delete pipeClientImpl;
|
||
return HGBASE_ERR_OK;
|
||
}
|
||
|
||
HGResult HGAPI HGBase_NamedPipeClientWrite(HGNamedPipeClient client, const HGByte* data, HGUInt size, HGUInt* writeSize)
|
||
{
|
||
if (NULL == client)
|
||
{
|
||
return HGBASE_ERR_INVALIDARG;
|
||
}
|
||
|
||
HGNamedPipeClientImpl* pipeClientImpl = (HGNamedPipeClientImpl*)client;
|
||
#if defined(HG_CMP_MSC)
|
||
assert(NULL != pipeClientImpl->m_thread);
|
||
|
||
if (pipeClientImpl->m_error || pipeClientImpl->m_break)
|
||
{
|
||
return HGBASE_ERR_FAIL;
|
||
}
|
||
|
||
OVERLAPPED overlapped = { 0 };
|
||
overlapped.hEvent = pipeClientImpl->m_hWriteEvent;
|
||
DWORD dwNumerOfWriteBytes = 0;
|
||
if (!WriteFile(pipeClientImpl->m_hPipe, data, size, &dwNumerOfWriteBytes, &overlapped))
|
||
{
|
||
if (ERROR_IO_PENDING != GetLastError())
|
||
{
|
||
// д<><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||
return HGBASE_ERR_FAIL;
|
||
}
|
||
|
||
WaitForSingleObject(pipeClientImpl->m_hWriteEvent, INFINITE);
|
||
if (!GetOverlappedResult(pipeClientImpl->m_hPipe, &overlapped, &dwNumerOfWriteBytes, TRUE))
|
||
{
|
||
// <20>ֶ<EFBFBD>ֹͣ
|
||
return HGBASE_ERR_FAIL;
|
||
}
|
||
}
|
||
if (NULL != writeSize)
|
||
*writeSize = dwNumerOfWriteBytes;
|
||
#else
|
||
// TODO
|
||
#endif
|
||
return HGBASE_ERR_OK;
|
||
}
|
||
|
||
HGResult HGAPI HGBase_NamedPipeClientRead(HGNamedPipeClient client, HGByte* data, HGUInt size, HGUInt* readSize)
|
||
{
|
||
if (NULL == client)
|
||
{
|
||
return HGBASE_ERR_INVALIDARG;
|
||
}
|
||
|
||
HGNamedPipeClientImpl* pipeClientImpl = (HGNamedPipeClientImpl*)client;
|
||
#if defined(HG_CMP_MSC)
|
||
assert(NULL != pipeClientImpl->m_thread);
|
||
|
||
if (pipeClientImpl->m_error || pipeClientImpl->m_break)
|
||
{
|
||
return HGBASE_ERR_FAIL;
|
||
}
|
||
|
||
OVERLAPPED overlapped = { 0 };
|
||
overlapped.hEvent = pipeClientImpl->m_hReadEvent;
|
||
DWORD dwNumerOfReadBytes = 0;
|
||
if (!ReadFile(pipeClientImpl->m_hPipe, data, size, &dwNumerOfReadBytes, &overlapped))
|
||
{
|
||
if (ERROR_IO_PENDING != GetLastError())
|
||
{
|
||
// <20><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD>
|
||
return HGBASE_ERR_FAIL;
|
||
}
|
||
|
||
WaitForSingleObject(pipeClientImpl->m_hReadEvent, INFINITE);
|
||
if (!GetOverlappedResult(pipeClientImpl->m_hPipe, &overlapped, &dwNumerOfReadBytes, TRUE))
|
||
{
|
||
// <20>ֶ<EFBFBD>ֹͣ
|
||
return HGBASE_ERR_FAIL;
|
||
}
|
||
}
|
||
|
||
if (NULL != readSize)
|
||
*readSize = dwNumerOfReadBytes;
|
||
#else
|
||
// TODO
|
||
#endif
|
||
return HGBASE_ERR_OK;
|
||
}
|
||
|
||
HGResult HGAPI HGBase_NamedPipeClientStop(HGNamedPipeClient client)
|
||
{
|
||
if (NULL == client)
|
||
{
|
||
return HGBASE_ERR_INVALIDARG;
|
||
}
|
||
|
||
HGNamedPipeClientImpl* pipeClientImpl = (HGNamedPipeClientImpl*)client;
|
||
#if defined(HG_CMP_MSC)
|
||
pipeClientImpl->m_break = HGTRUE;
|
||
SetEvent(pipeClientImpl->m_hWriteEvent);
|
||
SetEvent(pipeClientImpl->m_hReadEvent);
|
||
SetEvent(pipeClientImpl->m_hProcessEvent);
|
||
#else
|
||
// TODO
|
||
#endif
|
||
return HGBASE_ERR_OK;
|
||
}
|