| 1 | /* $Id: prfcoreterm.cpp.h 29 2009-07-01 20:30:29Z bird $ */
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| 2 | /** @file
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| 3 | * kProfiler Mark 2 - Core Termination Code Template.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (c) 2006-2007 Knut St. Osmundsen <[email protected]>
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| 8 | *
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| 9 | * Permission is hereby granted, free of charge, to any person
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| 10 | * obtaining a copy of this software and associated documentation
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| 11 | * files (the "Software"), to deal in the Software without
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| 12 | * restriction, including without limitation the rights to use,
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| 13 | * copy, modify, merge, publish, distribute, sublicense, and/or sell
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| 14 | * copies of the Software, and to permit persons to whom the
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| 15 | * Software is furnished to do so, subject to the following
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| 16 | * conditions:
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| 17 | *
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| 18 | * The above copyright notice and this permission notice shall be
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| 19 | * included in all copies or substantial portions of the Software.
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| 20 | *
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| 21 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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| 22 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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| 23 | * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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| 24 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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| 25 | * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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| 26 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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| 27 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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| 28 | * OTHER DEALINGS IN THE SOFTWARE.
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| 29 | */
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| 30 |
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| 31 |
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| 32 | /**
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| 33 | * Unwinds and terminates all the threads, and frees the stack space.
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| 34 | *
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| 35 | * @returns The new data set size. (pHdr->cb)
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| 36 | * @param pHdr The profiler data set header.
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| 37 | */
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| 38 | KPRF_DECL_FUNC(KU32, TerminateAll)(KPRF_TYPE(P,HDR) pHdr)
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| 39 | {
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| 40 | KU64 TS = KPRF_NOW();
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| 41 | if (!pHdr)
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| 42 | return 0;
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| 43 |
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| 44 | /*
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| 45 | * Iterate the threads and terminate all which are non-terminated.
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| 46 | */
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| 47 | KPRF_TYPE(P,THREAD) paThread = KPRF_OFF2PTR(P,THREAD, pHdr->offThreads, pHdr);
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| 48 | for (KU32 i = 0; i < pHdr->cThreads; i++)
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| 49 | {
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| 50 | KPRF_TYPE(P,THREAD) pCur = &paThread[i];
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| 51 | switch (pCur->enmState)
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| 52 | {
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| 53 | /* these states needs no work. */
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| 54 | case KPRF_TYPE(,THREADSTATE_TERMINATED):
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| 55 | case KPRF_TYPE(,THREADSTATE_UNUSED):
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| 56 | default:
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| 57 | break;
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| 58 |
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| 59 | /* these are active and requires unwinding.*/
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| 60 | case KPRF_TYPE(,THREADSTATE_ACTIVE):
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| 61 | case KPRF_TYPE(,THREADSTATE_SUSPENDED):
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| 62 | case KPRF_TYPE(,THREADSTATE_OVERFLOWED):
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| 63 | KPRF_NAME(TerminateThread)(pHdr, pCur, TS);
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| 64 | break;
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| 65 | }
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| 66 | }
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| 67 |
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| 68 |
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| 69 | /*
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| 70 | * Free the stacks.
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| 71 | */
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| 72 | if (pHdr->offStacks)
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| 73 | {
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| 74 | /* only if the stack is at the end of the data set. */
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| 75 | const KU32 cbStacks = KPRF_ALIGN(pHdr->cMaxStacks * pHdr->cbStack, 32);
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| 76 | if (pHdr->offStacks + cbStacks == pHdr->cb)
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| 77 | pHdr->cb -= cbStacks;
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| 78 | pHdr->offStacks = 0;
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| 79 | }
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| 80 |
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| 81 | return pHdr->cb;
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| 82 | }
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| 83 |
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| 84 |
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| 85 | /**
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| 86 | * Sets the commandline.
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| 87 | *
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| 88 | * This is typically done after TerminateAll, when the stacks has
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| 89 | * been freed up and there is plenty free space.
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| 90 | *
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| 91 | * @returns The new data set size. (pHdr->cb)
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| 92 | * @param pHdr The profiler data set header.
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| 93 | * @param cArgs The number of arguments in the array.
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| 94 | * @param papszArgs Pointer to an array of arguments.
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| 95 | */
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| 96 | KPRF_DECL_FUNC(KU32, SetCommandLine)(KPRF_TYPE(P,HDR) pHdr, unsigned cArgs, const char * const *papszArgs)
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| 97 | {
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| 98 | if (!pHdr)
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| 99 | return 0;
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| 100 |
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| 101 | /*
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| 102 | * Any space at all?
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| 103 | */
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| 104 | if (pHdr->cb + 16 > pHdr->cbAllocated) /* 16 bytes min */
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| 105 | return pHdr->cb;
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| 106 |
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| 107 | /*
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| 108 | * Encode untill we run out of space.
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| 109 | */
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| 110 | pHdr->offCommandLine = pHdr->cb;
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| 111 | char *psz = (char *)pHdr + pHdr->cb;
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| 112 | char *pszMax = (char *)pHdr + pHdr->cbAllocated - 1;
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| 113 | for (unsigned i = 0; i < cArgs && psz + 7 < pszMax; i++)
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| 114 | {
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| 115 | if (i > 0)
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| 116 | *psz++ = ' ';
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| 117 | *psz++ = '\'';
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| 118 | const char *pszArg = papszArgs[i];
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| 119 | while (psz < pszMax)
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| 120 | {
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| 121 | char ch = *pszArg++;
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| 122 | if (!ch)
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| 123 | break;
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| 124 | if (ch == '\'')
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| 125 | {
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| 126 | if (psz + 1 >= pszMax)
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| 127 | break;
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| 128 | *psz++ = '\\';
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| 129 | }
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| 130 | *psz++ = ch;
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| 131 | }
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| 132 | if (psz < pszMax)
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| 133 | *psz++ = '\'';
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| 134 | }
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| 135 | *psz++ = '\0';
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| 136 | pHdr->cb = psz - (char *)pHdr;
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| 137 | pHdr->cchCommandLine = pHdr->cb - pHdr->offCommandLine - 1;
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| 138 |
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| 139 | return pHdr->cb;
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| 140 | }
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| 141 |
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| 142 |
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