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/* $Id: prfcoreterm.cpp.h 29 2009-07-01 20:30:29Z bird $ */
/** @file
* kProfiler Mark 2 - Core Termination Code Template.
*/
/*
* Copyright (c) 2006-2007 Knut St. Osmundsen <bird-kStuff-spamix@anduin.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
/**
* Unwinds and terminates all the threads, and frees the stack space.
*
* @returns The new data set size. (pHdr->cb)
* @param pHdr The profiler data set header.
*/
KPRF_DECL_FUNC(KU32, TerminateAll)(KPRF_TYPE(P,HDR) pHdr)
{
KU64 TS = KPRF_NOW();
if (!pHdr)
return 0;
/*
* Iterate the threads and terminate all which are non-terminated.
*/
KPRF_TYPE(P,THREAD) paThread = KPRF_OFF2PTR(P,THREAD, pHdr->offThreads, pHdr);
for (KU32 i = 0; i < pHdr->cThreads; i++)
{
KPRF_TYPE(P,THREAD) pCur = &paThread[i];
switch (pCur->enmState)
{
/* these states needs no work. */
case KPRF_TYPE(,THREADSTATE_TERMINATED):
case KPRF_TYPE(,THREADSTATE_UNUSED):
default:
break;
/* these are active and requires unwinding.*/
case KPRF_TYPE(,THREADSTATE_ACTIVE):
case KPRF_TYPE(,THREADSTATE_SUSPENDED):
case KPRF_TYPE(,THREADSTATE_OVERFLOWED):
KPRF_NAME(TerminateThread)(pHdr, pCur, TS);
break;
}
}
/*
* Free the stacks.
*/
if (pHdr->offStacks)
{
/* only if the stack is at the end of the data set. */
const KU32 cbStacks = KPRF_ALIGN(pHdr->cMaxStacks * pHdr->cbStack, 32);
if (pHdr->offStacks + cbStacks == pHdr->cb)
pHdr->cb -= cbStacks;
pHdr->offStacks = 0;
}
return pHdr->cb;
}
/**
* Sets the commandline.
*
* This is typically done after TerminateAll, when the stacks has
* been freed up and there is plenty free space.
*
* @returns The new data set size. (pHdr->cb)
* @param pHdr The profiler data set header.
* @param cArgs The number of arguments in the array.
* @param papszArgs Pointer to an array of arguments.
*/
KPRF_DECL_FUNC(KU32, SetCommandLine)(KPRF_TYPE(P,HDR) pHdr, unsigned cArgs, const char * const *papszArgs)
{
if (!pHdr)
return 0;
/*
* Any space at all?
*/
if (pHdr->cb + 16 > pHdr->cbAllocated) /* 16 bytes min */
return pHdr->cb;
/*
* Encode untill we run out of space.
*/
pHdr->offCommandLine = pHdr->cb;
char *psz = (char *)pHdr + pHdr->cb;
char *pszMax = (char *)pHdr + pHdr->cbAllocated - 1;
for (unsigned i = 0; i < cArgs && psz + 7 < pszMax; i++)
{
if (i > 0)
*psz++ = ' ';
*psz++ = '\'';
const char *pszArg = papszArgs[i];
while (psz < pszMax)
{
char ch = *pszArg++;
if (!ch)
break;
if (ch == '\'')
{
if (psz + 1 >= pszMax)
break;
*psz++ = '\\';
}
*psz++ = ch;
}
if (psz < pszMax)
*psz++ = '\'';
}
*psz++ = '\0';
pHdr->cb = psz - (char *)pHdr;
pHdr->cchCommandLine = pHdr->cb - pHdr->offCommandLine - 1;
return pHdr->cb;
}
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