| 1 | /** @file
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| 2 | *
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| 3 | * Testcase for bug #1023 autoincrement of file handles.
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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) 2004 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 | /*******************************************************************************
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| 15 | * Header Files *
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| 16 | *******************************************************************************/
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| 17 | #define INCL_DOS
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| 18 | #define INCL_DOSINFOSEG
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| 19 | #ifdef __IBMC__
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| 20 | #include "../src/emx/include/os2emx.h"
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| 21 | #else
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| 22 | #include <os2.h>
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| 23 | #endif
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| 24 | #include <stdio.h>
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| 25 | #include <string.h>
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| 26 |
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| 27 |
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| 28 |
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| 29 | int main(int argc, const char **argv)
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| 30 | {
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| 31 | int i,j;
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| 32 | LONG lFHDelta = 0;
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| 33 | ULONG cFHs = 0;
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| 34 | ULONG cFHLast;
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| 35 | unsigned msLastInc;
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| 36 | unsigned msEnd;
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| 37 | unsigned msStart;
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| 38 | PGINFOSEG pGIS = GETGINFOSEG();
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| 39 | #define MAX_FHS 0x11000
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| 40 | static FILE *apFiles[MAX_FHS];
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| 41 |
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| 42 | DosSetRelMaxFH(&lFHDelta, &cFHs);
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| 43 | printf("cFHs=%d\n", cFHs);
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| 44 |
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| 45 | cFHLast = cFHs;
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| 46 | msLastInc = pGIS->msecs;
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| 47 | for (i = 0; i < MAX_FHS; i++)
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| 48 | {
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| 49 | msStart = pGIS->msecs;
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| 50 | apFiles[i] = fopen(argv[argc - 1], "rb");
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| 51 | msEnd = pGIS->msecs;
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| 52 | if (apFiles[i] == NULL)
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| 53 | {
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| 54 | printf("error %d!\n", i + 1);
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| 55 | break;
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| 56 | }
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| 57 |
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| 58 | lFHDelta = cFHs = 0;
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| 59 | DosSetRelMaxFH(&lFHDelta, &cFHs);
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| 60 | lFHDelta = cFHs = 0;
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| 61 | DosSetRelMaxFH(&lFHDelta, &cFHs);
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| 62 | if (cFHs != cFHLast)
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| 63 | {
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| 64 | printf("Max FH change %i (fh=%d): %d -> %d (inc: %d ms since last: %d ms)\n", i + 1, fileno(apFiles[i]), cFHLast, cFHs,
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| 65 | msEnd - msStart, msStart - msLastInc);
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| 66 | msLastInc = msEnd;
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| 67 | }
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| 68 | cFHLast = cFHs;
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| 69 | }
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| 70 |
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| 71 | lFHDelta = cFHs = 0;
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| 72 | DosSetRelMaxFH(&lFHDelta, &cFHs);
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| 73 | printf("cFHs=%d\n", cFHs);
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| 74 |
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| 75 | /*
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| 76 | * Free the files.
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| 77 | */
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| 78 | msStart = pGIS->msecs;
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| 79 | for (j = 0; j < i; j++)
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| 80 | fclose(apFiles[j]);
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| 81 | msEnd = pGIS->msecs;
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| 82 | printf("close of %j files took %d ms\n", j, msEnd - msStart);
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| 83 |
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| 84 | /*
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| 85 | * Report the result.
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| 86 | */
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| 87 | if (i < 9900)
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| 88 | {
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| 89 | printf("1023-maxfilehandles: failed, could only open %d handles, expected > 9900\n", i);
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| 90 | return 1;
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| 91 | }
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| 92 |
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| 93 | printf("1023-maxfilehandles: succeeded opening %d handles.\n", i);
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| 94 | return 0;
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| 95 | }
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