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  • Committer: Bazaar Package Importer
  • Author(s): Jose Luis Rivas
  • Date: 2007-03-31 10:31:05 UTC
  • mto: (4.1.4 gutsy) (6.2.1 squeeze) (1.3.1 upstream)
  • mto: This revision was merged to the branch mainline in revision 6.
  • Revision ID: james.westby@ubuntu.com-20070331103105-jzpp1rml6ud0ff75
Tags: upstream-0.11.4
Import upstream version 0.11.4

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src/data/chunk.cc
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#include "config.h"
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#include <algorithm>
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#include <functional>
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#include "torrent/exceptions.h"
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}
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void
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Chunk::preload(uint32_t position, uint32_t length) {
 
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Chunk::preload(uint32_t position, uint32_t length, bool useAdvise) {
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  if (position >= m_chunkSize)
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    throw internal_error("Chunk::preload(...) position > m_chunkSize.");
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  do {
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    data = itr.data();
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    for (char* first = (char*)data.first, *last = (char*)data.first + data.second; first < last; first += 4096)
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      volatile char __UNUSED touchChunk = *(char*)data.first;
 
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    if (useAdvise) {
 
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      itr.memory_chunk()->advise(itr.memory_chunk_first(), data.second, MemoryChunk::advice_willneed);
 
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    } else {
 
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      for (char* first = (char*)data.first, *last = (char*)data.first + data.second; first < last; first += 4096)
 
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        volatile char __UNUSED touchChunk = *(char*)data.first;
 
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      // Make sure we touch the last page in the range.
 
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      volatile char __UNUSED touchChunk = *((char*)data.first + data.second - 1);
 
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    }
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  } while (itr.next());
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}