DUNIONS.C

/**************************************************************************** 
                   Microsoft RPC Version 2.0 
           Copyright Microsoft Corp. 1992, 1993, 1994- 1996 
                    Discriminated Union Example 
 
    FILE:       dunions.c 
 
    USAGE:      dunions  -p protocol_sequence 
                         -e endpoint 
                         -m max calls 
                         -n min calls 
                         -f flag for RpcServerListen 
 
    PURPOSE:    Server side of RPC distributed application dunion 
 
    FUNCTIONS:  main() - registers server as RPC server 
 
    COMMENTS:   This distributed application illustrates discriminated 
                union. 
 
****************************************************************************/ 
 
#include <stdlib.h> 
#include <stdio.h> 
#include <ctype.h> 
#include "dunion.h"    // header file generated by MIDL compiler 
 
#define PURPOSE \ 
"This Microsoft RPC Version 2.0 sample program demonstrates\n\ 
two ways to specify a discriminated union. For more information\n\ 
about the attributes and the RPC API functions, see the\n\ 
RPC programming guide and reference.\n\n" 
 
void Usage(char * pszProgramName) 
{ 
    fprintf(stderr, "%s", PURPOSE); 
    fprintf(stderr, "Usage:  %s\n", pszProgramName); 
    fprintf(stderr, " -p protocol_sequence\n"); 
    fprintf(stderr, " -e endpoint\n"); 
    fprintf(stderr, " -m maxcalls\n"); 
    fprintf(stderr, " -n mincalls\n"); 
    fprintf(stderr, " -f flag_wait_op\n"); 
    exit(1); 
} 
 
void _CRTAPI1 main(int argc, char * argv[]) 
{ 
    RPC_STATUS status; 
    unsigned char * pszProtocolSequence = "ncacn_np"; 
    unsigned char * pszSecurity         = NULL; 
    unsigned char * pszEndpoint         = "\\pipe\\dunion"; 
    unsigned int    cMinCalls           = 1; 
    unsigned int    cMaxCalls           = 20; 
    unsigned int    fDontWait           = FALSE; 
    int i; 
 
    /* 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 'e': 
                pszEndpoint = argv[++i]; 
                break; 
            case 'm': 
                cMaxCalls = (unsigned int) atoi(argv[++i]); 
                break; 
            case 'n': 
                cMinCalls = (unsigned int) atoi(argv[++i]); 
                break; 
            case 'f': 
                fDontWait = (unsigned int) atoi(argv[++i]); 
                break; 
            case 'h': 
            case '?': 
            default: 
                Usage(argv[0]); 
            } 
        } 
        else 
            Usage(argv[0]); 
     } 
 
     status = RpcServerUseProtseqEp(pszProtocolSequence, 
                                    cMaxCalls, 
                                    pszEndpoint, 
                                    pszSecurity);  // Security descriptor 
     printf("RpcServerUseProtseqEp returned 0x%x\n", status); 
     if (status) { 
         exit(status); 
     } 
 
     status = RpcServerRegisterIf(dunion_ServerIfHandle,// interface to register 
                                  NULL,   // MgrTypeUuid 
                                  NULL);  // MgrEpv; null means use default 
     printf("RpcServerRegisterIf returned 0x%x\n", status); 
     if (status) { 
         exit(status); 
     } 
 
     printf("Calling RpcServerListen\n"); 
     status = RpcServerListen(cMinCalls, 
                              cMaxCalls, 
                              fDontWait); 
     printf("RpcServerListen returned: 0x%x\n", status); 
     if (status) { 
         exit(status); 
     } 
 
     if (fDontWait) { 
         printf("Calling RpcMgmtWaitServerListen\n"); 
         status = RpcMgmtWaitServerListen();  //  wait operation 
         printf("RpcMgmtWaitServerListen returned: 0x%x\n", status); 
         if (status) { 
             exit(status); 
         } 
     } 
 
}  // end main() 
 
 
/*********************************************************************/ 
/*                 MIDL allocate and free                            */ 
/*********************************************************************/ 
 
void __RPC_FAR * __RPC_USER midl_user_allocate(size_t len) 
{ 
    return(malloc(len)); 
} 
 
void __RPC_USER midl_user_free(void __RPC_FAR * ptr) 
{ 
    free(ptr); 
} 
 
/* end file dunions.c */