XMITC.C
资源名称:MSDN_VC98.zip [点击查看]
上传用户:bangxh
上传日期:2007-01-31
资源大小:42235k
文件大小:7k
源码类别:
Windows编程
开发平台:
Visual C++
- /****************************************************************************
- Microsoft RPC Version 2.0
- Copyright Microsoft Corp. 1992, 1993, 1994- 1996
- xmit Example
- FILE: xmitc.c
- USAGE: xmitc -n network_address
- -p protocol_sequence
- -e endpoint
- -o options
- -c count of elements in linked list
- -v value of first element in linked list
- -d delta between values in linked list
- PURPOSE: Client side of RPC distributed application.
- This sample demonstrates the transmit_as example.
- A doubly-linked list is transmitted over the network
- as a sized array.
- RELATED: xmits.c - server main
- xmitp.c - remote procedures
- xmitu.c - utility procedures
- FUNCTIONS: main() - bind to server and call remote procedure
- COMMENTS: This sample program generates a linked list to
- demonstrate how a list with aliasing can be transmitted
- using the transmit_as attribute as a sized array.
- The pointers are rebuilt on the server side.
- The [transmit_as] attribute (used in the typedef of
- DOUBLE_LINK_TYPE in the file XMIT.IDL) requires the
- four user-supplied functions whose names start with
- the name of the presented type, DOUBLE_LINK_TYPE.
- The [in, out] attributes applied to remote procedure
- parameters require the two user-supplied functions
- midl_user_allocate and midl_user_free.
- The other functions are utilities that are used to
- build or display the data structures.
- ****************************************************************************/
- #include <stdlib.h>
- #include <stdio.h>
- #include <ctype.h>
- #include "xmit.h" // header file generated by MIDL compiler
- #include "xmitu.h" // utility function prototypes
- #define PURPOSE
- "This Microsoft RPC Version 2.0 sample program demonstratesn
- the use of the [transmit_as] attribute. For more informationn
- about the attributes and the RPC API functions, see then
- RPC programming guide and reference.nn"
- #define MAX_ELEMENTS 50
- void Usage(char * pszProgramName)
- {
- fprintf(stderr, "%s", PURPOSE);
- fprintf(stderr, "Usage: %sn", pszProgramName);
- fprintf(stderr, " -p protocol_sequencen");
- fprintf(stderr, " -n network_addressn");
- fprintf(stderr, " -e endpointn");
- fprintf(stderr, " -o optionsn");
- fprintf(stderr, " -c count_of_elementsn");
- fprintf(stderr, " -v valuen");
- fprintf(stderr, " -d deltan");
- exit(1);
- }
- void _CRTAPI1 main(int argc, char **argv)
- {
- RPC_STATUS status;
- unsigned char * pszUuid = NULL;
- unsigned char * pszProtocolSequence = "ncacn_np";
- unsigned char * pszNetworkAddress = NULL;
- unsigned char * pszEndpoint = "\pipe\xmit";
- unsigned char * pszOptions = NULL;
- unsigned char * pszStringBinding = NULL;
- int i;
- int cElements = 10;
- short sValue = 100;
- short sDelta = 10;
- DOUBLE_LINK_TYPE *pFirst, *pCurrent;
- /* allow the user to override settings with command line switches */
- for (i = 1; i < argc; i++) {
- if ((*argv[i] == '-') || (*argv[i] == '/')) {
- switch (tolower(*(argv[i]+1))) {
- case 'p': // protocol sequence
- pszProtocolSequence = argv[++i];
- break;
- case 'n': // network address
- pszNetworkAddress = argv[++i];
- break;
- case 'e':
- pszEndpoint = argv[++i];
- break;
- case 'o':
- pszOptions = argv[++i];
- break;
- case 'c':
- cElements = atoi(argv[++i]);
- if (cElements > MAX_ELEMENTS)
- cElements = MAX_ELEMENTS;
- break;
- case 'v':
- sValue = (short)atoi(argv[++i]);
- break;
- case 'd':
- sDelta = (short)atoi(argv[++i]);
- break;
- case 'h':
- case '?':
- default:
- Usage(argv[0]);
- }
- }
- else
- Usage(argv[0]);
- }
- /* initialize a list with a number of elements */
- pFirst = InsertNewNode(sValue, NULL);
- pCurrent = pFirst; // assign some values to the list nodes
- sValue += sDelta; // make them different values
- for (i = 1; i < cElements; i++) {
- pCurrent = InsertNewNode(sValue, pCurrent);
- sValue += sDelta;
- }
- ListWalkProc(pFirst);
- /* Use a convenience function to concatenate the elements of the string */
- /* binding into the syntax needed by RpcBindingFromStringBinding. */
- status = RpcStringBindingCompose(pszUuid,
- pszProtocolSequence,
- pszNetworkAddress,
- pszEndpoint,
- pszOptions,
- &pszStringBinding);
- printf("RpcStringBindingCompose returned 0x%xn", status);
- printf("pszStringBinding = %sn", pszStringBinding);
- if (status) {
- exit(status);
- }
- /* Set the binding handle that will be used to bind to the server. */
- status = RpcBindingFromStringBinding(pszStringBinding,
- &hXmit);
- printf("RpcBindingFromStringBinding returned 0x%xn", status);
- if (status) {
- exit(status);
- }
- RpcTryExcept {
- printf("Calling the remote procedure 'ModifyListProc'n");
- ModifyListProc(pFirst); // call the remote procedure
- printf("Calling the remote procedure 'Shutdown'n");
- Shutdown(); // shut down the server side
- }
- RpcExcept(1) {
- printf("Runtime reported exception %ldn", RpcExceptionCode() );
- }
- RpcEndExcept
- printf("After ModifyListProc, the list appears as follows:n");
- ListWalkProc(pFirst); // call the utility that displays the list
- /* The calls to the remote procedures are complete. */
- /* Free the string and the binding handle using RPC API calls. */
- status = RpcStringFree(&pszStringBinding);
- printf("RpcStringFree returned 0x%xn", status);
- if (status) {
- exit(status);
- }
- status = RpcBindingFree(&hXmit);
- printf("RpcBindingFree returned 0x%xn", status);
- if (status) {
- exit(status);
- }
- exit(0);
- } // end main()
- /* end file xmitc.c */