| 1 | /* $Id: prfcoreterm.cpp.h 3609 2007-10-29 01:11:39Z 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 <bird-src-spam@anduin.net>
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| 8 | *
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| 9 | * This file is part of kProfiler.
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| 10 | *
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| 11 | * kProfiler is free software; you can redistribute it and/or
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| 12 | * modify it under the terms of the GNU Lesser General Public
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| 13 | * License as published by the Free Software Foundation; either
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| 14 | * version 2.1 of the License, or (at your option) any later version.
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| 15 | *
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| 16 | * kProfiler is distributed in the hope that it will be useful,
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| 17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 19 | * Lesser General Public License for more details.
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| 20 | *
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| 21 | * You should have received a copy of the GNU Lesser General Public
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| 22 | * License along with kProfiler; if not, write to the Free Software
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| 23 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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| 24 | *
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| 25 | */
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| 26 |
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| 27 |
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| 28 | /**
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| 29 | * Unwinds and terminates all the threads, and frees the stack space.
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| 30 | *
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| 31 | * @returns The new data set size. (pHdr->cb)
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| 32 | * @param pHdr The profiler data set header.
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| 33 | */
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| 34 | KPRF_DECL_FUNC(KU32, TerminateAll)(KPRF_TYPE(P,HDR) pHdr)
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| 35 | {
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| 36 | KU64 TS = KPRF_NOW();
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| 37 | if (!pHdr)
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| 38 | return 0;
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| 39 |
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| 40 | /*
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| 41 | * Iterate the threads and terminate all which are non-terminated.
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| 42 | */
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| 43 | KPRF_TYPE(P,THREAD) paThread = KPRF_OFF2PTR(P,THREAD, pHdr->offThreads, pHdr);
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| 44 | for (KU32 i = 0; i < pHdr->cThreads; i++)
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| 45 | {
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| 46 | KPRF_TYPE(P,THREAD) pCur = &paThread[i];
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| 47 | switch (pCur->enmState)
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| 48 | {
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| 49 | /* these states needs no work. */
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| 50 | case KPRF_TYPE(,THREADSTATE_TERMINATED):
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| 51 | case KPRF_TYPE(,THREADSTATE_UNUSED):
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| 52 | default:
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| 53 | break;
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| 54 |
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| 55 | /* these are active and requires unwinding.*/
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| 56 | case KPRF_TYPE(,THREADSTATE_ACTIVE):
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| 57 | case KPRF_TYPE(,THREADSTATE_SUSPENDED):
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| 58 | case KPRF_TYPE(,THREADSTATE_OVERFLOWED):
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| 59 | KPRF_NAME(TerminateThread)(pHdr, pCur, TS);
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| 60 | break;
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| 61 | }
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| 62 | }
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| 63 |
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| 64 |
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| 65 | /*
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| 66 | * Free the stacks.
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| 67 | */
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| 68 | if (pHdr->offStacks)
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| 69 | {
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| 70 | /* only if the stack is at the end of the data set. */
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| 71 | const KU32 cbStacks = KPRF_ALIGN(pHdr->cMaxStacks * pHdr->cbStack, 32);
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| 72 | if (pHdr->offStacks + cbStacks == pHdr->cb)
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| 73 | pHdr->cb -= cbStacks;
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| 74 | pHdr->offStacks = 0;
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| 75 | }
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| 76 |
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| 77 | return pHdr->cb;
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| 78 | }
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| 79 |
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| 80 |
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| 81 | /**
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| 82 | * Sets the commandline.
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| 83 | *
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| 84 | * This is typically done after TerminateAll, when the stacks has
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| 85 | * been freed up and there is plenty free space.
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| 86 | *
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| 87 | * @returns The new data set size. (pHdr->cb)
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| 88 | * @param pHdr The profiler data set header.
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| 89 | * @param cArgs The number of arguments in the array.
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| 90 | * @param papszArgs Pointer to an array of arguments.
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| 91 | */
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| 92 | KPRF_DECL_FUNC(KU32, SetCommandLine)(KPRF_TYPE(P,HDR) pHdr, unsigned cArgs, const char * const *papszArgs)
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| 93 | {
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| 94 | if (!pHdr)
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| 95 | return 0;
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| 96 |
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| 97 | /*
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| 98 | * Any space at all?
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| 99 | */
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| 100 | if (pHdr->cb + 16 > pHdr->cbAllocated) /* 16 bytes min */
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| 101 | return pHdr->cb;
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| 102 |
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| 103 | /*
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| 104 | * Encode untill we run out of space.
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| 105 | */
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| 106 | pHdr->offCommandLine = pHdr->cb;
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| 107 | char *psz = (char *)pHdr + pHdr->cb;
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| 108 | char *pszMax = (char *)pHdr + pHdr->cbAllocated - 1;
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| 109 | for (unsigned i = 0; i < cArgs && psz + 7 < pszMax; i++)
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| 110 | {
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| 111 | if (i > 0)
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| 112 | *psz++ = ' ';
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| 113 | *psz++ = '\'';
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| 114 | const char *pszArg = papszArgs[i];
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| 115 | while (psz < pszMax)
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| 116 | {
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| 117 | char ch = *pszArg++;
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| 118 | if (!ch)
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| 119 | break;
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| 120 | if (ch == '\'')
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| 121 | {
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| 122 | if (psz + 1 >= pszMax)
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| 123 | break;
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| 124 | *psz++ = '\\';
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| 125 | }
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| 126 | *psz++ = ch;
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| 127 | }
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| 128 | if (psz < pszMax)
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| 129 | *psz++ = '\'';
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| 130 | }
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| 131 | *psz++ = '\0';
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| 132 | pHdr->cb = psz - (char *)pHdr;
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| 133 | pHdr->cchCommandLine = pHdr->cb - pHdr->offCommandLine - 1;
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| 134 |
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| 135 | return pHdr->cb;
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| 136 | }
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| 137 |
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| 138 |
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