2 * Copyright 2000, International Business Machines Corporation and others.
5 * This software has been released under the terms of the IBM Public
6 * License. For details, see the LICENSE file in the top-level source
7 * directory or online at http://www.openafs.org/dl/license10.html
10 /* Sample program using multi_Rx, to execute calls in parallel to multiple hosts */
12 #include <sys/types.h>
14 #include <netinet/in.h>
17 #include "rx/rx_clock.h"
19 /* Bogus procedure to get internet address of host */
20 static u_long GetIpAddress(hostname)
23 struct hostent *hostent;
25 hostent = gethostbyname(hostname);
26 if (!hostent) {printf("host %s not found", hostname);exit(1);}
27 if (hostent->h_length != sizeof(u_long)) {
28 printf("host address is disagreeable length (%d)", hostent->h_length);
31 bcopy(hostent->h_addr, (char *)&host, sizeof(host));
38 struct rx_securityClass *null_securityObject;
39 register int i, nHosts = 0;
45 struct rx_connection *conns[50];
47 register int trials=1;
48 register int verbose=0;
51 struct clock startTime, endTime;
54 while (**argv == '-') {
55 if (strcmp(*argv, "-verbose") == 0) verbose = 1;
56 else if (strcmp(*argv, "-count") == 0) trials = atoi(*++argv), argc--;
57 else if (strcmp(*argv, "-abort") == 0) abort = 1;
59 fprintf("Unknown option %s\n", *argv);
65 host[nHosts].name = *argv;
66 host[nHosts].ipaddr = GetIpAddress(*argv);
67 arg[nHosts] = 10000*(nHosts+1); /* a bogus argument to show how an input argument to the multi call can be indexed by multi_i */
73 null_securityObject = rxnull_NewClientSecurityObject();
74 for (i=0; i<nHosts; i++) {
75 conns[i] = rx_NewConnection(host[i].ipaddr, SAMPLE_SERVER_PORT, SAMPLE_SERVICE_ID, null_securityObject, SAMPLE_NULL);
79 clock_GetTime(&startTime);
80 for (i=0;i<trials;i++) {
81 multi_Rx(conns, nHosts) {
82 /* Note that multi_i is available both for arguments (result could also be indexed by multi_i, if you want to keep the results apart, and after the call completes) and in the code which follows the completion of each multi_TEST_Add. At completion, multi_i will be set to the connection index of the call which completed, and multi_error will be set to the error code returned by that call. */
83 if (verbose) printf("%s: About to add %d to %d\n", host[multi_i].name, arg[multi_i], i*10, &result);
84 multi_TEST_Add(verbose, arg[multi_i], i*10, &result);
85 if (verbose) printf("%s: error %d, %d + %d is %d\n", host[multi_i].name, multi_error, arg[multi_i], i*10, result);
86 if (abort && multi_error) multi_Abort;
87 if (multi_error == 0) nSuccesses++;
88 else if (!verbose) printf("%s: error %d\n", host[multi_i].name, multi_error);
92 clock_GetTime(&endTime);
93 msec = clock_ElapsedTime(&startTime, &endTime);
94 printf("nSuccesses=%d in %d msec; %d msec per iteration for %d iterations over %d hosts\n", nSuccesses, msec, msec/trials, trials, nHosts);
96 /* Allow Rx to idle down any calls; it's a good idea, but not essential, to call this routine */