| 1 | /* $Id: iterate.c 405 2003-07-17 01:19:17Z bird $
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| 2 | *
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| 3 | * Iterate a program for a number of seconds.
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| 4 | *
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| 5 | * InnoTek Systemberatung GmbH confidential
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| 6 | *
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| 7 | * Copyright (c) 2003 InnoTek Systemberatung GmbH
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| 8 | * Author: knut st. osmundsen <bird-srcspam@anduin.net>
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| 9 | *
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| 10 | * All Rights Reserved
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| 11 | *
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| 12 | */
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| 13 |
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| 14 | #define INCL_BASE
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| 15 | #include <os2.h>
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| 16 | #include <string.h>
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| 17 | #include <stdio.h>
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| 18 |
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| 19 |
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| 20 | static int syntax(const char *argv0)
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| 21 | {
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| 22 | fprintf(stderr,
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| 23 | "syntax: %s <seconds> <prog> [arg]\n"
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| 24 | "\n"
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| 25 | "Iterated execution of <prog> for <seconds> reporting the number of iterations.\n",
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| 26 | argv0);
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| 27 | return 8;
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| 28 | }
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| 29 |
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| 30 |
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| 31 | int main(int argc, char const * const *argv)
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| 32 | {
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| 33 | APIRET rc;
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| 34 | unsigned cSeconds;
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| 35 | PPIB ppib;
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| 36 | PTIB ptib;
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| 37 | char * psz;
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| 38 | char * pszEnd;
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| 39 | char szArgs[8192];
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| 40 | ULONG ulEnd;
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| 41 | ULONG ul;
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| 42 | unsigned cIterations;
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| 43 |
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| 44 | /* Enough arguments? */
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| 45 | if (argc <= 2)
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| 46 | return syntax(argv[0]);
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| 47 |
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| 48 | /* It's easier to use the OS/2 facilities. */
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| 49 | DosGetInfoBlocks(&ptib, &ppib);
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| 50 | psz = ppib->pib_pchcmd;
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| 51 |
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| 52 | /* Skip the prog name and traditinal blanks before first arg */
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| 53 | psz += strlen(psz) + 1;
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| 54 | while (*psz == ' ' || *psz == '\t')
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| 55 | psz++;
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| 56 |
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| 57 | /* Seconds. */
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| 58 | cSeconds = strtoul(psz, &pszEnd, 0);
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| 59 | if (pszEnd <= psz || cSeconds <= 0)
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| 60 | {
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| 61 | fprintf(stderr, "error: would you be so good as give me a decent argument?\n");
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| 62 | return 8;
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| 63 | }
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| 64 |
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| 65 | /* Skip the spaces. */
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| 66 | psz = pszEnd;
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| 67 | while (*psz == ' ' || *psz == '\t')
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| 68 | psz++;
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| 69 |
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| 70 | /* Find the program name to execute - first word. (forget quoting) */
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| 71 | psz = strcpy(szArgs, psz);
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| 72 | while (*psz != ' ' && *psz != '\0')
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| 73 | psz++;
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| 74 | *psz++ = '\0';
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| 75 |
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| 76 |
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| 77 | /*
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| 78 | * Now iterate!
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| 79 | */
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| 80 | printf("Iterating '%s' for %d seconds...\n", szArgs, cSeconds);
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| 81 | fflush(stdout);
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| 82 |
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| 83 | DosQuerySysInfo(QSV_MS_COUNT, QSV_MS_COUNT, &ulEnd, sizeof(ulEnd));
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| 84 | ul = ulEnd;
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| 85 | ulEnd += 1000 * cSeconds;
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| 86 | while (ul < ulEnd)
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| 87 | {
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| 88 | RESULTCODES res;
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| 89 | rc = DosExecPgm(NULL, 0, EXEC_SYNC, szArgs, NULL, &res, szArgs);
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| 90 | if (rc)
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| 91 | break;
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| 92 | cIterations++;
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| 93 | /* check the time */
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| 94 | DosQuerySysInfo(QSV_MS_COUNT, QSV_MS_COUNT, &ul, sizeof(ul));
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| 95 | }
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| 96 | if (rc)
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| 97 | printf("error: DosExecPgm failed with rc=%d.\n", rc);
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| 98 | printf("Executed %d iterations.\n", cIterations);
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| 99 |
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| 100 | return rc;
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| 101 | }
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| 102 |
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