| 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 <io.h>
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| 26 | #include <fcntl.h>
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| 27 | #include <string.h>
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| 28 |
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| 29 |
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| 30 |
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| 31 | int main(int argc, const char **argv)
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| 32 | {
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| 33 | int i,j;
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| 34 | LONG lFHDelta = 0;
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| 35 | ULONG cFHs = 0;
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| 36 | ULONG cFHLast;
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| 37 | unsigned msLastInc;
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| 38 | unsigned msEnd;
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| 39 | unsigned msStart;
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| 40 | PGINFOSEG pGIS = GETGINFOSEG();
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| 41 | #define MAX_FHS 10000
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| 42 | #ifdef TEST_STREAMS
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| 43 | static FILE *apFiles[MAX_FHS];
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| 44 | #else
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| 45 | static int aiFiles[MAX_FHS];
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| 46 | #endif
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| 47 |
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| 48 | DosSetRelMaxFH(&lFHDelta, &cFHs);
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| 49 | printf("cFHs=%d\n", cFHs);
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| 50 |
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| 51 | cFHLast = cFHs;
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| 52 | msLastInc = pGIS->msecs;
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| 53 | for (i = 0; i < MAX_FHS; i++)
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| 54 | {
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| 55 | msStart = pGIS->msecs;
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| 56 | #ifdef TEST_STREAMS
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| 57 | apFiles[i] = fopen(argv[argc - 1], "rb");
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| 58 | #else
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| 59 | aiFiles[i] = open(argv[argc - 1], O_BINARY | O_RDONLY);
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| 60 | #endif
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| 61 | msEnd = pGIS->msecs;
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| 62 | #ifdef TEST_STREAMS
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| 63 | if (apFiles[i] == NULL)
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| 64 | #else
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| 65 | if (aiFiles[i] < 0)
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| 66 | #endif
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| 67 | {
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| 68 | printf("error %d!\n", i + 1);
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| 69 | break;
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| 70 | }
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| 71 |
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| 72 | lFHDelta = cFHs = 0;
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| 73 | DosSetRelMaxFH(&lFHDelta, &cFHs);
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| 74 | lFHDelta = cFHs = 0;
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| 75 | DosSetRelMaxFH(&lFHDelta, &cFHs);
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| 76 | if (cFHs != cFHLast)
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| 77 | {
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| 78 | printf("Max FH change %i (fh=%d): %d -> %d (inc: %d ms since last: %d ms)\n",
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| 79 | i + 1,
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| 80 | #ifdef TEST_STREAMS
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| 81 | fileno(apFiles[i]),
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| 82 | #else
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| 83 | aiFiles[i],
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| 84 | #endif
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| 85 | cFHLast, cFHs,
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| 86 | msEnd - msStart, msStart - msLastInc);
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| 87 | msLastInc = msEnd;
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| 88 | }
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| 89 | cFHLast = cFHs;
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| 90 | }
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| 91 |
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| 92 | lFHDelta = cFHs = 0;
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| 93 | DosSetRelMaxFH(&lFHDelta, &cFHs);
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| 94 | printf("cFHs=%d\n", cFHs);
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| 95 |
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| 96 | /*
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| 97 | * Free the files.
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| 98 | */
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| 99 | msStart = pGIS->msecs;
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| 100 | for (j = 0; j < i; j++)
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| 101 | #ifdef TEST_STREAMS
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| 102 | fclose(apFiles[j]);
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| 103 | #else
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| 104 | close(aiFiles[j]);
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| 105 | #endif
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| 106 | msEnd = pGIS->msecs;
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| 107 | printf("close of %d files took %d ms\n", j, msEnd - msStart);
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| 108 |
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| 109 | /*
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| 110 | * Report the result.
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| 111 | */
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| 112 | if (i < 9900)
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| 113 | {
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| 114 | printf("1023-maxfilehandles: failed, could only open %d handles, expected > 9900\n", i);
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| 115 | return 1;
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| 116 | }
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| 117 |
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| 118 | printf("1023-maxfilehandles: succeeded opening %d handles.\n", i);
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| 119 | return 0;
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| 120 | }
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