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1.1 root 1: /**************************************************************************** 1.1.1.3 ! root 2: Microsoft RPC Version 1.0 ! 3: Copyright Microsoft Corp. 1992 ! 4: Discriminated Union Example ! 5: ! 6: FILE: dunionc.c ! 7: ! 8: USAGE: dunionc -n network_address ! 9: -p protocol_sequence ! 10: -e endpoint ! 11: -o options ! 12: -d discriminant ! 13: -v union_value ! 14: ! 15: PURPOSE: Client side of RPC distributed application ! 16: ! 17: FUNCTIONS: main() - binds to server and calls remote procedure ! 18: ! 19: COMMENTS: This distributed application illustrates discriminated ! 20: union. 1.1 root 21: 22: ****************************************************************************/ 1.1.1.3 ! root 23: 1.1 root 24: #include <stdlib.h> 1.1.1.3 ! root 25: #include <stdio.h> ! 26: #include <ctype.h> ! 27: #include "dunion.h" // header file generated by MIDL compiler 1.1 root 28: 29: 30: void Usage(char * pszProgramName) 31: { 32: fprintf(stderr, "Usage: %s\n", pszProgramName); 33: fprintf(stderr, " -p protocol_sequence\n"); 34: fprintf(stderr, " -n network_address\n"); 35: fprintf(stderr, " -e endpoint\n"); 36: fprintf(stderr, " -o options\n"); 37: fprintf(stderr, " -d discriminant\n"); 38: fprintf(stderr, " -v union_value\n"); 39: exit(1); 40: } 41: 1.1.1.3 ! root 42: void DisplayUnionValue(DISCRIM_UNION_PARAM_TYPE *up, ! 43: short sDiscrim) 1.1 root 44: { 45: printf("sDiscrim = %d, data = ", sDiscrim); 46: switch(sDiscrim) { 1.1.1.3 ! root 47: case 0: ! 48: printf("short: %d\n", up->sVal); ! 49: break; ! 50: case 1: ! 51: printf("float: %f\n", up->fVal); ! 52: break; ! 53: case 2: ! 54: printf("char: %c\n", up->chVal); ! 55: break; ! 56: default: ! 57: printf("invalid\n"); ! 58: break; ! 59: } 1.1 root 60: } 61: 1.1.1.2 root 62: void _CRTAPI1 main(int argc, char **argv) 1.1 root 63: { 1.1.1.3 ! root 64: RPC_STATUS status; ! 65: unsigned char * pszUuid = NULL; 1.1 root 66: unsigned char * pszProtocolSequence = "ncacn_np"; 67: unsigned char * pszNetworkAddress = NULL; 1.1.1.3 ! root 68: unsigned char * pszEndpoint = "\\pipe\\dunion"; 1.1 root 69: unsigned char * pszOptions = NULL; 1.1.1.3 ! root 70: unsigned char * pszStringBinding = NULL; 1.1 root 71: int i; 72: 1.1.1.3 ! root 73: short sDiscrim = 0; ! 74: DISCRIM_UNION_PARAM_TYPE up = {1}; ! 75: DISCRIM_UNION_STRUCT_TYPE us = {0, 1}; ! 76: ! 77: /* allow the user to override settings with command line switches */ 1.1 root 78: for (i = 1; i < argc; i++) { 1.1.1.3 ! root 79: if ((*argv[i] == '-') || (*argv[i] == '/')) { ! 80: switch (tolower(*(argv[i]+1))) { ! 81: case 'p': // protocol sequence ! 82: pszProtocolSequence = argv[++i]; ! 83: break; ! 84: case 'n': // network address ! 85: pszNetworkAddress = argv[++i]; ! 86: break; ! 87: case 'e': ! 88: pszEndpoint = argv[++i]; ! 89: break; ! 90: case 'o': ! 91: pszOptions = argv[++i]; ! 92: break; ! 93: case 'd': ! 94: sDiscrim = (short) atoi(argv[++i]); ! 95: if ((sDiscrim > 3) || (sDiscrim < 0)) ! 96: sDiscrim = 0; ! 97: us.sDiscrim = sDiscrim; ! 98: break; ! 99: case 'v': ! 100: switch(sDiscrim) { ! 101: case 0: ! 102: up.sVal = (short) atoi(argv[++i]); ! 103: us.u.sVal = up.sVal; ! 104: break; ! 105: case 1: ! 106: up.fVal = (float) atof(argv[++i]); ! 107: us.u.fVal = up.fVal; ! 108: break; ! 109: case 2: ! 110: up.chVal = *(argv[++i]); ! 111: us.u.chVal = up.chVal; ! 112: break; ! 113: default: ! 114: break; ! 115: } ! 116: break; ! 117: case 'h': ! 118: case '?': ! 119: default: ! 120: Usage(argv[0]); ! 121: } ! 122: } ! 123: else ! 124: Usage(argv[0]); 1.1 root 125: } 126: 1.1.1.3 ! root 127: /* Use a convenience function to concatenate the elements of */ ! 128: /* the string binding into the proper sequence. */ 1.1 root 129: status = RpcStringBindingCompose(pszUuid, 130: pszProtocolSequence, 131: pszNetworkAddress, 132: pszEndpoint, 133: pszOptions, 134: &pszStringBinding); 135: printf("RpcStringBindingCompose returned 0x%x\n", status); 136: printf("pszStringBinding = %s\n", pszStringBinding); 1.1.1.3 ! root 137: if (status) { ! 138: exit(status); ! 139: } 1.1 root 140: 1.1.1.3 ! root 141: /* Set the binding handle that will be used to bind to the server. */ 1.1 root 142: status = RpcBindingFromStringBinding(pszStringBinding, 1.1.1.3 ! root 143: &hDiscrim); 1.1 root 144: printf("RpcBindingFromStringBinding returned 0x%x\n", status); 1.1.1.3 ! root 145: if (status) { ! 146: exit(status); ! 147: } 1.1 root 148: 149: printf("Calling the remote procedure 'UnionParamProc'\n"); 150: 1.1.1.3 ! root 151: DisplayUnionValue(&up, sDiscrim); // display value before call ! 152: UnionParamProc(&up, sDiscrim); // call the remote procedure 1.1 root 153: 1.1.1.3 ! root 154: UnionStructProc(&us); // call the remote procedure ! 155: DisplayUnionValue(&up, sDiscrim); // display value after call 1.1 root 156: 1.1.1.3 ! root 157: Shutdown(); // Shut down the server 1.1 root 158: 1.1.1.3 ! root 159: /* The remote procedure call is complete. Free the binding handle */ ! 160: status = RpcBindingFree(&hDiscrim); 1.1 root 161: printf("RpcBindingFree returned 0x%x\n", status); 1.1.1.3 ! root 162: if (status) { ! 163: exit(status); ! 164: } 1.1 root 165: 166: exit(0); 1.1.1.3 ! root 167: ! 168: } // end main() ! 169: ! 170: ! 171: /*********************************************************************/ ! 172: /* MIDL allocate and free */ ! 173: /*********************************************************************/ ! 174: ! 175: void __RPC_FAR * __RPC_API midl_user_allocate(size_t len) ! 176: { ! 177: return(malloc(len)); ! 178: } ! 179: ! 180: void __RPC_API midl_user_free(void __RPC_FAR * ptr) ! 181: { ! 182: free(ptr); 1.1 root 183: } 184: 1.1.1.3 ! root 185: /* end file dunionc.c */
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