Win32 RPC 編程(一)

Win32 RPC 編程(一)  示例下載

1.首先使用uuidgen工具（$(VS)\Common7\Tools）生成idl接口文件

uuidgen /i /ohello.idl

注意"/o"和文件名之間沒有空白！

2.而後打開生成的接口文件，在裏面添加接口

 Cpp代碼

[
    uuid(d1717d33-8e03-456c-a79b-57fc212f5042),
    version(1.0),
    pointer_default(unique)
]

interface hello
{
    void HelloProc([in, string] unsigned char * pszString);
    void ShutDown(void);
}

[
	uuid(d1717d33-8e03-456c-a79b-57fc212f5042),
	version(1.0),
	pointer_default(unique)
]

interface hello
{
	void HelloProc([in, string] unsigned char * pszString);
	void ShutDown(void);
}

 3.編寫acf文件，此文件要與idl文件同名且放在同一目錄下。此文件是可選的。

 Cpp代碼

[
    implicit_handle (handle_t hello_Binding)
]

interface hello
{
}

[
	implicit_handle (handle_t hello_Binding)
]

interface hello
{
}

4.使用midl編譯idl文件

midl hello.idl

編譯生成hello.h, hello_c.c, hello_s.c三個文件。hello.h爲客戶端和服務端共用頭文件，hello_c.c要放到客戶端，hello_s.c要放到服務端。

5.服務端部分代碼

 Cpp代碼

#include <iostream>
#include <hello.h>

using namespace std;

int main(void)
{
    RPC_STATUS status = 0;

    unsigned int nMinCalls = 1;
    unsigned int nMaxCalls = 20;

    status = RpcServerUseProtseqEp(
        (unsigned char *)"ncacn_np",
        nMaxCalls,
        (unsigned char *)"\\pipe\\{a5194558-21a6-4978-9610-2072fcf1dc6e}",
        NULL );
    if ( status != 0 )
    {
        cout<<"RpcServerUseProtseqEp return "<<status<<" !"<<endl;
        return 1;
    }

    status = RpcServerRegisterIf(
        hello_v1_0_s_ifspec,
        NULL,
        NULL );
    if ( status != 0 )
    {
        cout<<"RpcServerRegisterIf return "<<status<<" !"<<endl;
        return 1;
    }

    cout<<"Begin RPC server listen!"<<endl;

    status = RpcServerListen(
        nMinCalls,
        nMaxCalls,
        FALSE );
    if ( status != 0 )
    {
        cout<<"RpcServerListen return "<<status<<" !"<<endl;
        return 1;
    }

    cin.get();
    return 0;
}

void * __RPC_USER MIDL_user_allocate(size_t len)
{
    return (malloc(len));
}

void __RPC_USER MIDL_user_free(void* ptr)
{
    free(ptr);
}

void HelloProc(unsigned char *pszString)
{
    cout<<pszString<<endl;
}

void ShutDown()
{
    RPC_STATUS status = 0;

    status = RpcMgmtStopServerListening(NULL);
    if ( status != 0 )
        cout<<"RpcMgmtStopServerListening return "<<status<<" !"<<endl;

    status = RpcServerUnregisterIf(NULL, NULL, FALSE);
    if ( status != 0 )
        cout<<"RpcServerUnregisterIf return "<<status<<" !"<<endl;
}

#include <iostream>
#include <hello.h>

using namespace std;

int main(void)
{
	RPC_STATUS status = 0;

	unsigned int nMinCalls = 1;
	unsigned int nMaxCalls = 20;

	status = RpcServerUseProtseqEp(
		(unsigned char *)"ncacn_np",
		nMaxCalls,
		(unsigned char *)"\\pipe\\{a5194558-21a6-4978-9610-2072fcf1dc6e}",
		NULL );
	if ( status != 0 )
	{
		cout<<"RpcServerUseProtseqEp return "<<status<<" !"<<endl;
		return 1;
	}

	status = RpcServerRegisterIf(
		hello_v1_0_s_ifspec,
		NULL,
		NULL );
	if ( status != 0 )
	{
		cout<<"RpcServerRegisterIf return "<<status<<" !"<<endl;
		return 1;
	}

	cout<<"Begin RPC server listen!"<<endl;

	status = RpcServerListen(
		nMinCalls,
		nMaxCalls,
		FALSE );
	if ( status != 0 )
	{
		cout<<"RpcServerListen return "<<status<<" !"<<endl;
		return 1;
	}

	cin.get();
	return 0;
}

void * __RPC_USER MIDL_user_allocate(size_t len)
{
	return (malloc(len));
}

void __RPC_USER MIDL_user_free(void* ptr)
{
	free(ptr);
}

void HelloProc(unsigned char *pszString)
{
	cout<<pszString<<endl;
}

void ShutDown()
{
	RPC_STATUS status = 0;

	status = RpcMgmtStopServerListening(NULL);
	if ( status != 0 )
		cout<<"RpcMgmtStopServerListening return "<<status<<" !"<<endl;

	status = RpcServerUnregisterIf(NULL, NULL, FALSE);
	if ( status != 0 )
		cout<<"RpcServerUnregisterIf return "<<status<<" !"<<endl;
}

 6.客戶端代碼

 Cpp代碼

#include <iostream>
#include <string>
#include <hello.h>

using namespace std;

void doRpcCall();

int main(int argc, char** argv)
{
    RPC_STATUS status;

    unsigned char * pszNetworkAddress = NULL;
    unsigned char * pszStringBinding = NULL;

    for ( int i = 1; i < argc; ++i )
    {
        if ( strcmp(argv[i], "-ip") == 0 )
        {
            pszNetworkAddress = (unsigned char *)argv[++i];
        }
    }

    status = RpcStringBindingCompose(
        NULL,
        (unsigned char *)"ncacn_np",
        pszNetworkAddress,
        (unsigned char *)"\\pipe\\{a5194558-21a6-4978-9610-2072fcf1dc6e}",
        NULL,
        &pszStringBinding );
    if ( status != 0 )
    {
        cout<<"RpcStringBindingCompose return "<<status<<" !"<<endl;
        return 1;
    }

    cout<<"pszStringBinding = "<<pszStringBinding<<endl;

    status = RpcBindingFromStringBinding(
        pszStringBinding,
        &hello_Binding );
    if ( status != 0 )
    {
        cout<<"RpcBindingFromStringBinding return "<<status<<" !"<<endl;
        return 1;
    }

    doRpcCall();

    status = RpcStringFree( &pszStringBinding );
    if ( status != 0 )
        cout<<"RpcStringFree return "<<status<<" !"<<endl;

    status = RpcBindingFree( &hello_Binding );
    if ( status != 0 )
        cout<<"RpcBindingFree return "<<status<<" !"<<endl;

    cin.get();
    return 0;
}

void doRpcCall()
{
    char buff[1024];

    RpcTryExcept
    {
        while (true)
        {
            cout<<"Please input a string param for RPC call:"<<endl;
            cin.getline(buff, 1023);

            if ( strcmp(buff, "exit") == 0 || strcmp(buff, "quit") == 0 )
            {
                ShutDown();
                break;
            }
            else
            {
                HelloProc( (unsigned char *)buff );
                cout<<"RPC call <HelloProc> succeed!"<<endl;
            }
        }
    }
    RpcExcept(1)
    {
        unsigned long ulCode = RpcExceptionCode();
        cout<<"RPC exception occured! code: "<<ulCode<<endl;
    }
    RpcEndExcept
}

void * __RPC_USER MIDL_user_allocate(size_t len)
{
    return (malloc(len));
}

void __RPC_USER MIDL_user_free(void* ptr)
{
    free(ptr);
}