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From: hbdeshmukh@apache.org
To: commits@quickstep.incubator.apache.org
Date: Tue, 17 Jan 2017 19:31:07 -0000
Message-Id: <c5728013582c4d36999d44351fd5e2f1@git.apache.org>
In-Reply-To: <0deccc80e9b74623abdb71bdb8aeda8d@git.apache.org>
References: <0deccc80e9b74623abdb71bdb8aeda8d@git.apache.org>
Subject: [13/51] [partial] incubator-quickstep git commit: Added shell script
 to download prerequisite third party libs
archived-at: Tue, 17 Jan 2017 19:31:16 -0000

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/bb3371c3/third_party/gperftools/src/packed-cache-inl.h
----------------------------------------------------------------------
diff --git a/third_party/gperftools/src/packed-cache-inl.h b/third_party/gperftools/src/packed-cache-inl.h
deleted file mode 100644
index 0946260..0000000
--- a/third_party/gperftools/src/packed-cache-inl.h
+++ /dev/null
@@ -1,239 +0,0 @@
-// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
-// Copyright (c) 2007, Google Inc.
-// All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// ---
-// Author: Geoff Pike
-//
-// This file provides a minimal cache that can hold a <key, value> pair
-// with little if any wasted space.  The types of the key and value
-// must be unsigned integral types or at least have unsigned semantics
-// for >>, casting, and similar operations.
-//
-// Synchronization is not provided.  However, the cache is implemented
-// as an array of cache entries whose type is chosen at compile time.
-// If a[i] is atomic on your hardware for the chosen array type then
-// raciness will not necessarily lead to bugginess.  The cache entries
-// must be large enough to hold a partial key and a value packed
-// together.  The partial keys are bit strings of length
-// kKeybits - kHashbits, and the values are bit strings of length kValuebits.
-//
-// In an effort to use minimal space, every cache entry represents
-// some <key, value> pair; the class provides no way to mark a cache
-// entry as empty or uninitialized.  In practice, you may want to have
-// reserved keys or values to get around this limitation.  For example, in
-// tcmalloc's PageID-to-sizeclass cache, a value of 0 is used as
-// "unknown sizeclass."
-//
-// Usage Considerations
-// --------------------
-//
-// kHashbits controls the size of the cache.  The best value for
-// kHashbits will of course depend on the application.  Perhaps try
-// tuning the value of kHashbits by measuring different values on your
-// favorite benchmark.  Also remember not to be a pig; other
-// programs that need resources may suffer if you are.
-//
-// The main uses for this class will be when performance is
-// critical and there's a convenient type to hold the cache's
-// entries.  As described above, the number of bits required
-// for a cache entry is (kKeybits - kHashbits) + kValuebits.  Suppose
-// kKeybits + kValuebits is 43.  Then it probably makes sense to
-// chose kHashbits >= 11 so that cache entries fit in a uint32.
-//
-// On the other hand, suppose kKeybits = kValuebits = 64.  Then
-// using this class may be less worthwhile.  You'll probably
-// be using 128 bits for each entry anyway, so maybe just pick
-// a hash function, H, and use an array indexed by H(key):
-//    void Put(K key, V value) { a_[H(key)] = pair<K, V>(key, value); }
-//    V GetOrDefault(K key, V default) { const pair<K, V> &p = a_[H(key)]; ... }
-//    etc.
-//
-// Further Details
-// ---------------
-//
-// For caches used only by one thread, the following is true:
-// 1. For a cache c,
-//      (c.Put(key, value), c.GetOrDefault(key, 0)) == value
-//    and
-//      (c.Put(key, value), <...>, c.GetOrDefault(key, 0)) == value
-//    if the elided code contains no c.Put calls.
-//
-// 2. Has(key) will return false if no <key, value> pair with that key
-//    has ever been Put.  However, a newly initialized cache will have
-//    some <key, value> pairs already present.  When you create a new
-//    cache, you must specify an "initial value."  The initialization
-//    procedure is equivalent to Clear(initial_value), which is
-//    equivalent to Put(k, initial_value) for all keys k from 0 to
-//    2^kHashbits - 1.
-//
-// 3. If key and key' differ then the only way Put(key, value) may
-//    cause Has(key') to change is that Has(key') may change from true to
-//    false. Furthermore, a Put() call that doesn't change Has(key')
-//    doesn't change GetOrDefault(key', ...) either.
-//
-// Implementation details:
-//
-// This is a direct-mapped cache with 2^kHashbits entries; the hash
-// function simply takes the low bits of the key.  We store whole keys
-// if a whole key plus a whole value fits in an entry.  Otherwise, an
-// entry is the high bits of a key and a value, packed together.
-// E.g., a 20 bit key and a 7 bit value only require a uint16 for each
-// entry if kHashbits >= 11.
-//
-// Alternatives to this scheme will be added as needed.
-
-#ifndef TCMALLOC_PACKED_CACHE_INL_H_
-#define TCMALLOC_PACKED_CACHE_INL_H_
-
-#include "config.h"
-#include <stddef.h>                     // for size_t
-#ifdef HAVE_STDINT_H
-#include <stdint.h>                     // for uintptr_t
-#endif
-#include "base/basictypes.h"
-#include "internal_logging.h"
-
-// A safe way of doing "(1 << n) - 1" -- without worrying about overflow
-// Note this will all be resolved to a constant expression at compile-time
-#define N_ONES_(IntType, N)                                     \
-  ( (N) == 0 ? 0 : ((static_cast<IntType>(1) << ((N)-1))-1 +    \
-                    (static_cast<IntType>(1) << ((N)-1))) )
-
-// The types K and V provide upper bounds on the number of valid keys
-// and values, but we explicitly require the keys to be less than
-// 2^kKeybits and the values to be less than 2^kValuebits.  The size of
-// the table is controlled by kHashbits, and the type of each entry in
-// the cache is T.  See also the big comment at the top of the file.
-template <int kKeybits, typename T>
-class PackedCache {
- public:
-  typedef uintptr_t K;
-  typedef size_t V;
-#ifdef TCMALLOC_SMALL_BUT_SLOW
-  // Decrease the size map cache if running in the small memory mode.
-  static const int kHashbits = 12;
-#else
-  static const int kHashbits = 16;
-#endif
-  static const int kValuebits = 7;
-  static const bool kUseWholeKeys = kKeybits + kValuebits <= 8 * sizeof(T);
-
-  explicit PackedCache(V initial_value) {
-    COMPILE_ASSERT(kKeybits <= sizeof(K) * 8, key_size);
-    COMPILE_ASSERT(kValuebits <= sizeof(V) * 8, value_size);
-    COMPILE_ASSERT(kHashbits <= kKeybits, hash_function);
-    COMPILE_ASSERT(kKeybits - kHashbits + kValuebits <= kTbits,
-                   entry_size_must_be_big_enough);
-    Clear(initial_value);
-  }
-
-  void Put(K key, V value) {
-    ASSERT(key == (key & kKeyMask));
-    ASSERT(value == (value & kValueMask));
-    array_[Hash(key)] = KeyToUpper(key) | value;
-  }
-
-  bool Has(K key) const {
-    ASSERT(key == (key & kKeyMask));
-    return KeyMatch(array_[Hash(key)], key);
-  }
-
-  V GetOrDefault(K key, V default_value) const {
-    // As with other code in this class, we touch array_ as few times
-    // as we can.  Assuming entries are read atomically (e.g., their
-    // type is uintptr_t on most hardware) then certain races are
-    // harmless.
-    ASSERT(key == (key & kKeyMask));
-    T entry = array_[Hash(key)];
-    return KeyMatch(entry, key) ? EntryToValue(entry) : default_value;
-  }
-
-  void Clear(V value) {
-    ASSERT(value == (value & kValueMask));
-    for (int i = 0; i < 1 << kHashbits; i++) {
-      ASSERT(kUseWholeKeys || KeyToUpper(i) == 0);
-      array_[i] = kUseWholeKeys ? (value | KeyToUpper(i)) : value;
-    }
-  }
-
- private:
-  // We are going to pack a value and the upper part of a key (or a
-  // whole key) into an entry of type T.  The UPPER type is for the
-  // upper part of a key, after the key has been masked and shifted
-  // for inclusion in an entry.
-  typedef T UPPER;
-
-  static V EntryToValue(T t) { return t & kValueMask; }
-
-  // If we have space for a whole key, we just shift it left.
-  // Otherwise kHashbits determines where in a K to find the upper
-  // part of the key, and kValuebits determines where in the entry to
-  // put it.
-  static UPPER KeyToUpper(K k) {
-    if (kUseWholeKeys) {
-      return static_cast<T>(k) << kValuebits;
-    } else {
-      const int shift = kHashbits - kValuebits;
-      // Assume kHashbits >= kValuebits.  It'd be easy to lift this assumption.
-      return static_cast<T>(k >> shift) & kUpperMask;
-    }
-  }
-
-  static size_t Hash(K key) {
-    return static_cast<size_t>(key) & N_ONES_(size_t, kHashbits);
-  }
-
-  // Does the entry match the relevant part of the given key?
-  static bool KeyMatch(T entry, K key) {
-    return kUseWholeKeys ?
-        (entry >> kValuebits == key) :
-        ((KeyToUpper(key) ^ entry) & kUpperMask) == 0;
-  }
-
-  static const int kTbits = 8 * sizeof(T);
-  static const int kUpperbits = kUseWholeKeys ? kKeybits : kKeybits - kHashbits;
-
-  // For masking a K.
-  static const K kKeyMask = N_ONES_(K, kKeybits);
-
-  // For masking a T.
-  static const T kUpperMask = N_ONES_(T, kUpperbits) << kValuebits;
-
-  // For masking a V or a T.
-  static const V kValueMask = N_ONES_(V, kValuebits);
-
-  // array_ is the cache.  Its elements are volatile because any
-  // thread can write any array element at any time.
-  volatile T array_[1 << kHashbits];
-};
-
-#undef N_ONES_
-
-#endif  // TCMALLOC_PACKED_CACHE_INL_H_

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/bb3371c3/third_party/gperftools/src/page_heap.cc
----------------------------------------------------------------------
diff --git a/third_party/gperftools/src/page_heap.cc b/third_party/gperftools/src/page_heap.cc
deleted file mode 100644
index a60df4a..0000000
--- a/third_party/gperftools/src/page_heap.cc
+++ /dev/null
@@ -1,675 +0,0 @@
-// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
-// Copyright (c) 2008, Google Inc.
-// All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// ---
-// Author: Sanjay Ghemawat <opensource@google.com>
-
-#include <config.h>
-#ifdef HAVE_INTTYPES_H
-#include <inttypes.h>                   // for PRIuPTR
-#endif
-#include <gperftools/malloc_extension.h>      // for MallocRange, etc
-#include "base/basictypes.h"
-#include "base/commandlineflags.h"
-#include "internal_logging.h"  // for ASSERT, TCMalloc_Printer, etc
-#include "page_heap_allocator.h"  // for PageHeapAllocator
-#include "static_vars.h"       // for Static
-#include "system-alloc.h"      // for TCMalloc_SystemAlloc, etc
-
-DEFINE_double(tcmalloc_release_rate,
-              EnvToDouble("TCMALLOC_RELEASE_RATE", 1.0),
-              "Rate at which we release unused memory to the system.  "
-              "Zero means we never release memory back to the system.  "
-              "Increase this flag to return memory faster; decrease it "
-              "to return memory slower.  Reasonable rates are in the "
-              "range [0,10]");
-
-DEFINE_int64(tcmalloc_heap_limit_mb,
-              EnvToInt("TCMALLOC_HEAP_LIMIT_MB", 0),
-              "Limit total size of the process heap to the "
-              "specified number of MiB. "
-              "When we approach the limit the memory is released "
-              "to the system more aggressively (more minor page faults). "
-              "Zero means to allocate as long as system allows.");
-
-namespace tcmalloc {
-
-PageHeap::PageHeap()
-    : pagemap_(MetaDataAlloc),
-      pagemap_cache_(0),
-      scavenge_counter_(0),
-      // Start scavenging at kMaxPages list
-      release_index_(kMaxPages),
-      aggressive_decommit_(false) {
-  COMPILE_ASSERT(kNumClasses <= (1 << PageMapCache::kValuebits), valuebits);
-  DLL_Init(&large_.normal);
-  DLL_Init(&large_.returned);
-  for (int i = 0; i < kMaxPages; i++) {
-    DLL_Init(&free_[i].normal);
-    DLL_Init(&free_[i].returned);
-  }
-}
-
-Span* PageHeap::SearchFreeAndLargeLists(Length n) {
-  ASSERT(Check());
-  ASSERT(n > 0);
-
-  // Find first size >= n that has a non-empty list
-  for (Length s = n; s < kMaxPages; s++) {
-    Span* ll = &free_[s].normal;
-    // If we're lucky, ll is non-empty, meaning it has a suitable span.
-    if (!DLL_IsEmpty(ll)) {
-      ASSERT(ll->next->location == Span::ON_NORMAL_FREELIST);
-      return Carve(ll->next, n);
-    }
-    // Alternatively, maybe there's a usable returned span.
-    ll = &free_[s].returned;
-    if (!DLL_IsEmpty(ll)) {
-      // We did not call EnsureLimit before, to avoid releasing the span
-      // that will be taken immediately back.
-      // Calling EnsureLimit here is not very expensive, as it fails only if
-      // there is no more normal spans (and it fails efficiently)
-      // or SystemRelease does not work (there is probably no returned spans).
-      if (EnsureLimit(n)) {
-        // ll may have became empty due to coalescing
-        if (!DLL_IsEmpty(ll)) {
-          ASSERT(ll->next->location == Span::ON_RETURNED_FREELIST);
-          return Carve(ll->next, n);
-        }
-      }
-    }
-  }
-  // No luck in free lists, our last chance is in a larger class.
-  return AllocLarge(n);  // May be NULL
-}
-
-static const size_t kForcedCoalesceInterval = 128*1024*1024;
-
-Span* PageHeap::New(Length n) {
-  ASSERT(Check());
-  ASSERT(n > 0);
-
-  Span* result = SearchFreeAndLargeLists(n);
-  if (result != NULL)
-    return result;
-
-  if (stats_.free_bytes != 0 && stats_.unmapped_bytes != 0
-      && stats_.free_bytes + stats_.unmapped_bytes >= stats_.system_bytes / 4
-      && (stats_.system_bytes / kForcedCoalesceInterval
-          != (stats_.system_bytes + (n << kPageShift)) / kForcedCoalesceInterval)) {
-    // We're about to grow heap, but there are lots of free pages.
-    // tcmalloc's design decision to keep unmapped and free spans
-    // separately and never coalesce them means that sometimes there
-    // can be free pages span of sufficient size, but it consists of
-    // "segments" of different type so page heap search cannot find
-    // it. In order to prevent growing heap and wasting memory in such
-    // case we're going to unmap all free pages. So that all free
-    // spans are maximally coalesced.
-    //
-    // We're also limiting 'rate' of going into this path to be at
-    // most once per 128 megs of heap growth. Otherwise programs that
-    // grow heap frequently (and that means by small amount) could be
-    // penalized with higher count of minor page faults.
-    //
-    // See also large_heap_fragmentation_unittest.cc and
-    // https://code.google.com/p/gperftools/issues/detail?id=368
-    ReleaseAtLeastNPages(static_cast<Length>(0x7fffffff));
-
-    // then try again. If we are forced to grow heap because of large
-    // spans fragmentation and not because of problem described above,
-    // then at the very least we've just unmapped free but
-    // insufficiently big large spans back to OS. So in case of really
-    // unlucky memory fragmentation we'll be consuming virtual address
-    // space, but not real memory
-    result = SearchFreeAndLargeLists(n);
-    if (result != NULL) return result;
-  }
-
-  // Grow the heap and try again.
-  if (!GrowHeap(n)) {
-    ASSERT(stats_.unmapped_bytes+ stats_.committed_bytes==stats_.system_bytes);
-    ASSERT(Check());
-    return NULL;
-  }
-  return SearchFreeAndLargeLists(n);
-}
-
-Span* PageHeap::AllocLarge(Length n) {
-  // find the best span (closest to n in size).
-  // The following loops implements address-ordered best-fit.
-  Span *best = NULL;
-
-  // Search through normal list
-  for (Span* span = large_.normal.next;
-       span != &large_.normal;
-       span = span->next) {
-    if (span->length >= n) {
-      if ((best == NULL)
-          || (span->length < best->length)
-          || ((span->length == best->length) && (span->start < best->start))) {
-        best = span;
-        ASSERT(best->location == Span::ON_NORMAL_FREELIST);
-      }
-    }
-  }
-
-  Span *bestNormal = best;
-
-  // Search through released list in case it has a better fit
-  for (Span* span = large_.returned.next;
-       span != &large_.returned;
-       span = span->next) {
-    if (span->length >= n) {
-      if ((best == NULL)
-          || (span->length < best->length)
-          || ((span->length == best->length) && (span->start < best->start))) {
-        best = span;
-        ASSERT(best->location == Span::ON_RETURNED_FREELIST);
-      }
-    }
-  }
-
-  if (best == bestNormal) {
-    return best == NULL ? NULL : Carve(best, n);
-  }
-
-  // best comes from returned list.
-
-  if (EnsureLimit(n, false)) {
-    return Carve(best, n);
-  }
-
-  if (EnsureLimit(n, true)) {
-    // best could have been destroyed by coalescing.
-    // bestNormal is not a best-fit, and it could be destroyed as well.
-    // We retry, the limit is already ensured:
-    return AllocLarge(n);
-  }
-
-  // If bestNormal existed, EnsureLimit would succeeded:
-  ASSERT(bestNormal == NULL);
-  // We are not allowed to take best from returned list.
-  return NULL;
-}
-
-Span* PageHeap::Split(Span* span, Length n) {
-  ASSERT(0 < n);
-  ASSERT(n < span->length);
-  ASSERT(span->location == Span::IN_USE);
-  ASSERT(span->sizeclass == 0);
-  Event(span, 'T', n);
-
-  const int extra = span->length - n;
-  Span* leftover = NewSpan(span->start + n, extra);
-  ASSERT(leftover->location == Span::IN_USE);
-  Event(leftover, 'U', extra);
-  RecordSpan(leftover);
-  pagemap_.set(span->start + n - 1, span); // Update map from pageid to span
-  span->length = n;
-
-  return leftover;
-}
-
-void PageHeap::CommitSpan(Span* span) {
-  TCMalloc_SystemCommit(reinterpret_cast<void*>(span->start << kPageShift),
-                        static_cast<size_t>(span->length << kPageShift));
-  stats_.committed_bytes += span->length << kPageShift;
-}
-
-bool PageHeap::DecommitSpan(Span* span) {
-  bool rv = TCMalloc_SystemRelease(reinterpret_cast<void*>(span->start << kPageShift),
-                                   static_cast<size_t>(span->length << kPageShift));
-  if (rv) {
-    stats_.committed_bytes -= span->length << kPageShift;
-  }
-
-  return rv;
-}
-
-Span* PageHeap::Carve(Span* span, Length n) {
-  ASSERT(n > 0);
-  ASSERT(span->location != Span::IN_USE);
-  const int old_location = span->location;
-  RemoveFromFreeList(span);
-  span->location = Span::IN_USE;
-  Event(span, 'A', n);
-
-  const int extra = span->length - n;
-  ASSERT(extra >= 0);
-  if (extra > 0) {
-    Span* leftover = NewSpan(span->start + n, extra);
-    leftover->location = old_location;
-    Event(leftover, 'S', extra);
-    RecordSpan(leftover);
-
-    // The previous span of |leftover| was just splitted -- no need to
-    // coalesce them. The next span of |leftover| was not previously coalesced
-    // with |span|, i.e. is NULL or has got location other than |old_location|.
-#ifndef NDEBUG
-    const PageID p = leftover->start;
-    const Length len = leftover->length;
-    Span* next = GetDescriptor(p+len);
-    ASSERT (next == NULL ||
-            next->location == Span::IN_USE ||
-            next->location != leftover->location);
-#endif
-
-    PrependToFreeList(leftover);  // Skip coalescing - no candidates possible
-    span->length = n;
-    pagemap_.set(span->start + n - 1, span);
-  }
-  ASSERT(Check());
-  if (old_location == Span::ON_RETURNED_FREELIST) {
-    // We need to recommit this address space.
-    CommitSpan(span);
-  }
-  ASSERT(span->location == Span::IN_USE);
-  ASSERT(span->length == n);
-  ASSERT(stats_.unmapped_bytes+ stats_.committed_bytes==stats_.system_bytes);
-  return span;
-}
-
-void PageHeap::Delete(Span* span) {
-  ASSERT(Check());
-  ASSERT(span->location == Span::IN_USE);
-  ASSERT(span->length > 0);
-  ASSERT(GetDescriptor(span->start) == span);
-  ASSERT(GetDescriptor(span->start + span->length - 1) == span);
-  const Length n = span->length;
-  span->sizeclass = 0;
-  span->sample = 0;
-  span->location = Span::ON_NORMAL_FREELIST;
-  Event(span, 'D', span->length);
-  MergeIntoFreeList(span);  // Coalesces if possible
-  IncrementalScavenge(n);
-  ASSERT(stats_.unmapped_bytes+ stats_.committed_bytes==stats_.system_bytes);
-  ASSERT(Check());
-}
-
-bool PageHeap::MayMergeSpans(Span *span, Span *other) {
-  if (aggressive_decommit_) {
-    return other->location != Span::IN_USE;
-  }
-  return span->location == other->location;
-}
-
-void PageHeap::MergeIntoFreeList(Span* span) {
-  ASSERT(span->location != Span::IN_USE);
-
-  // Coalesce -- we guarantee that "p" != 0, so no bounds checking
-  // necessary.  We do not bother resetting the stale pagemap
-  // entries for the pieces we are merging together because we only
-  // care about the pagemap entries for the boundaries.
-  //
-  // Note: depending on aggressive_decommit_ mode we allow only
-  // similar spans to be coalesced.
-  //
-  // The following applies if aggressive_decommit_ is enabled:
-  //
-  // Note that the adjacent spans we merge into "span" may come out of a
-  // "normal" (committed) list, and cleanly merge with our IN_USE span, which
-  // is implicitly committed.  If the adjacents spans are on the "returned"
-  // (decommitted) list, then we must get both spans into the same state before
-  // or after we coalesce them.  The current code always decomits. This is
-  // achieved by blindly decommitting the entire coalesced region, which  may
-  // include any combination of committed and decommitted spans, at the end of
-  // the method.
-
-  // TODO(jar): "Always decommit" causes some extra calls to commit when we are
-  // called in GrowHeap() during an allocation :-/.  We need to eval the cost of
-  // that oscillation, and possibly do something to reduce it.
-
-  // TODO(jar): We need a better strategy for deciding to commit, or decommit,
-  // based on memory usage and free heap sizes.
-
-  uint64_t temp_committed = 0;
-
-  const PageID p = span->start;
-  const Length n = span->length;
-  Span* prev = GetDescriptor(p-1);
-  if (prev != NULL && MayMergeSpans(span, prev)) {
-    // Merge preceding span into this span
-    ASSERT(prev->start + prev->length == p);
-    const Length len = prev->length;
-    if (aggressive_decommit_ && prev->location == Span::ON_RETURNED_FREELIST) {
-      // We're about to put the merge span into the returned freelist and call
-      // DecommitSpan() on it, which will mark the entire span including this
-      // one as released and decrease stats_.committed_bytes by the size of the
-      // merged span.  To make the math work out we temporarily increase the
-      // stats_.committed_bytes amount.
-      temp_committed = prev->length << kPageShift;
-    }
-    RemoveFromFreeList(prev);
-    DeleteSpan(prev);
-    span->start -= len;
-    span->length += len;
-    pagemap_.set(span->start, span);
-    Event(span, 'L', len);
-  }
-  Span* next = GetDescriptor(p+n);
-  if (next != NULL && MayMergeSpans(span, next)) {
-    // Merge next span into this span
-    ASSERT(next->start == p+n);
-    const Length len = next->length;
-    if (aggressive_decommit_ && next->location == Span::ON_RETURNED_FREELIST) {
-      // See the comment below 'if (prev->location ...' for explanation.
-      temp_committed += next->length << kPageShift;
-    }
-    RemoveFromFreeList(next);
-    DeleteSpan(next);
-    span->length += len;
-    pagemap_.set(span->start + span->length - 1, span);
-    Event(span, 'R', len);
-  }
-
-  if (aggressive_decommit_) {
-    if (DecommitSpan(span)) {
-      span->location = Span::ON_RETURNED_FREELIST;
-      stats_.committed_bytes += temp_committed;
-    } else {
-      ASSERT(temp_committed == 0);
-    }
-  }
-  PrependToFreeList(span);
-}
-
-void PageHeap::PrependToFreeList(Span* span) {
-  ASSERT(span->location != Span::IN_USE);
-  SpanList* list = (span->length < kMaxPages) ? &free_[span->length] : &large_;
-  if (span->location == Span::ON_NORMAL_FREELIST) {
-    stats_.free_bytes += (span->length << kPageShift);
-    DLL_Prepend(&list->normal, span);
-  } else {
-    stats_.unmapped_bytes += (span->length << kPageShift);
-    DLL_Prepend(&list->returned, span);
-  }
-}
-
-void PageHeap::RemoveFromFreeList(Span* span) {
-  ASSERT(span->location != Span::IN_USE);
-  if (span->location == Span::ON_NORMAL_FREELIST) {
-    stats_.free_bytes -= (span->length << kPageShift);
-  } else {
-    stats_.unmapped_bytes -= (span->length << kPageShift);
-  }
-  DLL_Remove(span);
-}
-
-void PageHeap::IncrementalScavenge(Length n) {
-  // Fast path; not yet time to release memory
-  scavenge_counter_ -= n;
-  if (scavenge_counter_ >= 0) return;  // Not yet time to scavenge
-
-  const double rate = FLAGS_tcmalloc_release_rate;
-  if (rate <= 1e-6) {
-    // Tiny release rate means that releasing is disabled.
-    scavenge_counter_ = kDefaultReleaseDelay;
-    return;
-  }
-
-  Length released_pages = ReleaseAtLeastNPages(1);
-
-  if (released_pages == 0) {
-    // Nothing to scavenge, delay for a while.
-    scavenge_counter_ = kDefaultReleaseDelay;
-  } else {
-    // Compute how long to wait until we return memory.
-    // FLAGS_tcmalloc_release_rate==1 means wait for 1000 pages
-    // after releasing one page.
-    const double mult = 1000.0 / rate;
-    double wait = mult * static_cast<double>(released_pages);
-    if (wait > kMaxReleaseDelay) {
-      // Avoid overflow and bound to reasonable range.
-      wait = kMaxReleaseDelay;
-    }
-    scavenge_counter_ = static_cast<int64_t>(wait);
-  }
-}
-
-Length PageHeap::ReleaseLastNormalSpan(SpanList* slist) {
-  Span* s = slist->normal.prev;
-  ASSERT(s->location == Span::ON_NORMAL_FREELIST);
-
-  if (DecommitSpan(s)) {
-    RemoveFromFreeList(s);
-    const Length n = s->length;
-    s->location = Span::ON_RETURNED_FREELIST;
-    MergeIntoFreeList(s);  // Coalesces if possible.
-    return n;
-  }
-
-  return 0;
-}
-
-Length PageHeap::ReleaseAtLeastNPages(Length num_pages) {
-  Length released_pages = 0;
-
-  // Round robin through the lists of free spans, releasing the last
-  // span in each list.  Stop after releasing at least num_pages
-  // or when there is nothing more to release.
-  while (released_pages < num_pages && stats_.free_bytes > 0) {
-    for (int i = 0; i < kMaxPages+1 && released_pages < num_pages;
-         i++, release_index_++) {
-      if (release_index_ > kMaxPages) release_index_ = 0;
-      SpanList* slist = (release_index_ == kMaxPages) ?
-          &large_ : &free_[release_index_];
-      if (!DLL_IsEmpty(&slist->normal)) {
-        Length released_len = ReleaseLastNormalSpan(slist);
-        // Some systems do not support release
-        if (released_len == 0) return released_pages;
-        released_pages += released_len;
-      }
-    }
-  }
-  return released_pages;
-}
-
-bool PageHeap::EnsureLimit(Length n, bool withRelease)
-{
-  Length limit = (FLAGS_tcmalloc_heap_limit_mb*1024*1024) >> kPageShift;
-  if (limit == 0) return true; //there is no limit
-
-  // We do not use stats_.system_bytes because it does not take
-  // MetaDataAllocs into account.
-  Length takenPages = TCMalloc_SystemTaken >> kPageShift;
-  //XXX takenPages may be slightly bigger than limit for two reasons:
-  //* MetaDataAllocs ignore the limit (it is not easy to handle
-  //  out of memory there)
-  //* sys_alloc may round allocation up to huge page size,
-  //  although smaller limit was ensured
-
-  ASSERT(takenPages >= stats_.unmapped_bytes >> kPageShift);
-  takenPages -= stats_.unmapped_bytes >> kPageShift;
-
-  if (takenPages + n > limit && withRelease) {
-    takenPages -= ReleaseAtLeastNPages(takenPages + n - limit);
-  }
-
-  return takenPages + n <= limit;
-}
-
-void PageHeap::RegisterSizeClass(Span* span, size_t sc) {
-  // Associate span object with all interior pages as well
-  ASSERT(span->location == Span::IN_USE);
-  ASSERT(GetDescriptor(span->start) == span);
-  ASSERT(GetDescriptor(span->start+span->length-1) == span);
-  Event(span, 'C', sc);
-  span->sizeclass = sc;
-  for (Length i = 1; i < span->length-1; i++) {
-    pagemap_.set(span->start+i, span);
-  }
-}
-
-void PageHeap::GetSmallSpanStats(SmallSpanStats* result) {
-  for (int s = 0; s < kMaxPages; s++) {
-    result->normal_length[s] = DLL_Length(&free_[s].normal);
-    result->returned_length[s] = DLL_Length(&free_[s].returned);
-  }
-}
-
-void PageHeap::GetLargeSpanStats(LargeSpanStats* result) {
-  result->spans = 0;
-  result->normal_pages = 0;
-  result->returned_pages = 0;
-  for (Span* s = large_.normal.next; s != &large_.normal; s = s->next) {
-    result->normal_pages += s->length;;
-    result->spans++;
-  }
-  for (Span* s = large_.returned.next; s != &large_.returned; s = s->next) {
-    result->returned_pages += s->length;
-    result->spans++;
-  }
-}
-
-bool PageHeap::GetNextRange(PageID start, base::MallocRange* r) {
-  Span* span = reinterpret_cast<Span*>(pagemap_.Next(start));
-  if (span == NULL) {
-    return false;
-  }
-  r->address = span->start << kPageShift;
-  r->length = span->length << kPageShift;
-  r->fraction = 0;
-  switch (span->location) {
-    case Span::IN_USE:
-      r->type = base::MallocRange::INUSE;
-      r->fraction = 1;
-      if (span->sizeclass > 0) {
-        // Only some of the objects in this span may be in use.
-        const size_t osize = Static::sizemap()->class_to_size(span->sizeclass);
-        r->fraction = (1.0 * osize * span->refcount) / r->length;
-      }
-      break;
-    case Span::ON_NORMAL_FREELIST:
-      r->type = base::MallocRange::FREE;
-      break;
-    case Span::ON_RETURNED_FREELIST:
-      r->type = base::MallocRange::UNMAPPED;
-      break;
-    default:
-      r->type = base::MallocRange::UNKNOWN;
-      break;
-  }
-  return true;
-}
-
-static void RecordGrowth(size_t growth) {
-  StackTrace* t = Static::stacktrace_allocator()->New();
-  t->depth = GetStackTrace(t->stack, kMaxStackDepth-1, 3);
-  t->size = growth;
-  t->stack[kMaxStackDepth-1] = reinterpret_cast<void*>(Static::growth_stacks());
-  Static::set_growth_stacks(t);
-}
-
-bool PageHeap::GrowHeap(Length n) {
-  ASSERT(kMaxPages >= kMinSystemAlloc);
-  if (n > kMaxValidPages) return false;
-  Length ask = (n>kMinSystemAlloc) ? n : static_cast<Length>(kMinSystemAlloc);
-  size_t actual_size;
-  void* ptr = NULL;
-  if (EnsureLimit(ask)) {
-      ptr = TCMalloc_SystemAlloc(ask << kPageShift, &actual_size, kPageSize);
-  }
-  if (ptr == NULL) {
-    if (n < ask) {
-      // Try growing just "n" pages
-      ask = n;
-      if (EnsureLimit(ask)) {
-        ptr = TCMalloc_SystemAlloc(ask << kPageShift, &actual_size, kPageSize);
-      }
-    }
-    if (ptr == NULL) return false;
-  }
-  ask = actual_size >> kPageShift;
-  RecordGrowth(ask << kPageShift);
-
-  uint64_t old_system_bytes = stats_.system_bytes;
-  stats_.system_bytes += (ask << kPageShift);
-  stats_.committed_bytes += (ask << kPageShift);
-  const PageID p = reinterpret_cast<uintptr_t>(ptr) >> kPageShift;
-  ASSERT(p > 0);
-
-  // If we have already a lot of pages allocated, just pre allocate a bunch of
-  // memory for the page map. This prevents fragmentation by pagemap metadata
-  // when a program keeps allocating and freeing large blocks.
-
-  if (old_system_bytes < kPageMapBigAllocationThreshold
-      && stats_.system_bytes >= kPageMapBigAllocationThreshold) {
-    pagemap_.PreallocateMoreMemory();
-  }
-
-  // Make sure pagemap_ has entries for all of the new pages.
-  // Plus ensure one before and one after so coalescing code
-  // does not need bounds-checking.
-  if (pagemap_.Ensure(p-1, ask+2)) {
-    // Pretend the new area is allocated and then Delete() it to cause
-    // any necessary coalescing to occur.
-    Span* span = NewSpan(p, ask);
-    RecordSpan(span);
-    Delete(span);
-    ASSERT(stats_.unmapped_bytes+ stats_.committed_bytes==stats_.system_bytes);
-    ASSERT(Check());
-    return true;
-  } else {
-    // We could not allocate memory within "pagemap_"
-    // TODO: Once we can return memory to the system, return the new span
-    return false;
-  }
-}
-
-bool PageHeap::Check() {
-  ASSERT(free_[0].normal.next == &free_[0].normal);
-  ASSERT(free_[0].returned.next == &free_[0].returned);
-  return true;
-}
-
-bool PageHeap::CheckExpensive() {
-  bool result = Check();
-  CheckList(&large_.normal, kMaxPages, 1000000000, Span::ON_NORMAL_FREELIST);
-  CheckList(&large_.returned, kMaxPages, 1000000000, Span::ON_RETURNED_FREELIST);
-  for (Length s = 1; s < kMaxPages; s++) {
-    CheckList(&free_[s].normal, s, s, Span::ON_NORMAL_FREELIST);
-    CheckList(&free_[s].returned, s, s, Span::ON_RETURNED_FREELIST);
-  }
-  return result;
-}
-
-bool PageHeap::CheckList(Span* list, Length min_pages, Length max_pages,
-                         int freelist) {
-  for (Span* s = list->next; s != list; s = s->next) {
-    CHECK_CONDITION(s->location == freelist);  // NORMAL or RETURNED
-    CHECK_CONDITION(s->length >= min_pages);
-    CHECK_CONDITION(s->length <= max_pages);
-    CHECK_CONDITION(GetDescriptor(s->start) == s);
-    CHECK_CONDITION(GetDescriptor(s->start+s->length-1) == s);
-  }
-  return true;
-}
-
-}  // namespace tcmalloc

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/bb3371c3/third_party/gperftools/src/page_heap.h
----------------------------------------------------------------------
diff --git a/third_party/gperftools/src/page_heap.h b/third_party/gperftools/src/page_heap.h
deleted file mode 100644
index 18abed1..0000000
--- a/third_party/gperftools/src/page_heap.h
+++ /dev/null
@@ -1,316 +0,0 @@
-// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
-// Copyright (c) 2008, Google Inc.
-// All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// ---
-// Author: Sanjay Ghemawat <opensource@google.com>
-
-#ifndef TCMALLOC_PAGE_HEAP_H_
-#define TCMALLOC_PAGE_HEAP_H_
-
-#include <config.h>
-#include <stddef.h>                     // for size_t
-#ifdef HAVE_STDINT_H
-#include <stdint.h>                     // for uint64_t, int64_t, uint16_t
-#endif
-#include <gperftools/malloc_extension.h>
-#include "base/basictypes.h"
-#include "common.h"
-#include "packed-cache-inl.h"
-#include "pagemap.h"
-#include "span.h"
-
-// We need to dllexport PageHeap just for the unittest.  MSVC complains
-// that we don't dllexport the PageHeap members, but we don't need to
-// test those, so I just suppress this warning.
-#ifdef _MSC_VER
-#pragma warning(push)
-#pragma warning(disable:4251)
-#endif
-
-// This #ifdef should almost never be set.  Set NO_TCMALLOC_SAMPLES if
-// you're porting to a system where you really can't get a stacktrace.
-// Because we control the definition of GetStackTrace, all clients of
-// GetStackTrace should #include us rather than stacktrace.h.
-#ifdef NO_TCMALLOC_SAMPLES
-  // We use #define so code compiles even if you #include stacktrace.h somehow.
-# define GetStackTrace(stack, depth, skip)  (0)
-#else
-# include <gperftools/stacktrace.h>
-#endif
-
-namespace base {
-struct MallocRange;
-}
-
-namespace tcmalloc {
-
-// -------------------------------------------------------------------------
-// Map from page-id to per-page data
-// -------------------------------------------------------------------------
-
-// We use PageMap2<> for 32-bit and PageMap3<> for 64-bit machines.
-// We also use a simple one-level cache for hot PageID-to-sizeclass mappings,
-// because sometimes the sizeclass is all the information we need.
-
-// Selector class -- general selector uses 3-level map
-template <int BITS> class MapSelector {
- public:
-  typedef TCMalloc_PageMap3<BITS-kPageShift> Type;
-  typedef PackedCache<BITS-kPageShift, uint64_t> CacheType;
-};
-
-// A two-level map for 32-bit machines
-template <> class MapSelector<32> {
- public:
-  typedef TCMalloc_PageMap2<32-kPageShift> Type;
-  typedef PackedCache<32-kPageShift, uint16_t> CacheType;
-};
-
-// -------------------------------------------------------------------------
-// Page-level allocator
-//  * Eager coalescing
-//
-// Heap for page-level allocation.  We allow allocating and freeing a
-// contiguous runs of pages (called a "span").
-// -------------------------------------------------------------------------
-
-class PERFTOOLS_DLL_DECL PageHeap {
- public:
-  PageHeap();
-
-  // Allocate a run of "n" pages.  Returns zero if out of memory.
-  // Caller should not pass "n == 0" -- instead, n should have
-  // been rounded up already.
-  Span* New(Length n);
-
-  // Delete the span "[p, p+n-1]".
-  // REQUIRES: span was returned by earlier call to New() and
-  //           has not yet been deleted.
-  void Delete(Span* span);
-
-  // Mark an allocated span as being used for small objects of the
-  // specified size-class.
-  // REQUIRES: span was returned by an earlier call to New()
-  //           and has not yet been deleted.
-  void RegisterSizeClass(Span* span, size_t sc);
-
-  // Split an allocated span into two spans: one of length "n" pages
-  // followed by another span of length "span->length - n" pages.
-  // Modifies "*span" to point to the first span of length "n" pages.
-  // Returns a pointer to the second span.
-  //
-  // REQUIRES: "0 < n < span->length"
-  // REQUIRES: span->location == IN_USE
-  // REQUIRES: span->sizeclass == 0
-  Span* Split(Span* span, Length n);
-
-  // Return the descriptor for the specified page.  Returns NULL if
-  // this PageID was not allocated previously.
-  inline Span* GetDescriptor(PageID p) const {
-    return reinterpret_cast<Span*>(pagemap_.get(p));
-  }
-
-  // If this page heap is managing a range with starting page # >= start,
-  // store info about the range in *r and return true.  Else return false.
-  bool GetNextRange(PageID start, base::MallocRange* r);
-
-  // Page heap statistics
-  struct Stats {
-    Stats() : system_bytes(0), free_bytes(0), unmapped_bytes(0), committed_bytes(0) {}
-    uint64_t system_bytes;    // Total bytes allocated from system
-    uint64_t free_bytes;      // Total bytes on normal freelists
-    uint64_t unmapped_bytes;  // Total bytes on returned freelists
-    uint64_t committed_bytes;  // Bytes committed, always <= system_bytes_.
-
-  };
-  inline Stats stats() const { return stats_; }
-
-  struct SmallSpanStats {
-    // For each free list of small spans, the length (in spans) of the
-    // normal and returned free lists for that size.
-    int64 normal_length[kMaxPages];
-    int64 returned_length[kMaxPages];
-  };
-  void GetSmallSpanStats(SmallSpanStats* result);
-
-  // Stats for free large spans (i.e., spans with more than kMaxPages pages).
-  struct LargeSpanStats {
-    int64 spans;           // Number of such spans
-    int64 normal_pages;    // Combined page length of normal large spans
-    int64 returned_pages;  // Combined page length of unmapped spans
-  };
-  void GetLargeSpanStats(LargeSpanStats* result);
-
-  bool Check();
-  // Like Check() but does some more comprehensive checking.
-  bool CheckExpensive();
-  bool CheckList(Span* list, Length min_pages, Length max_pages,
-                 int freelist);  // ON_NORMAL_FREELIST or ON_RETURNED_FREELIST
-
-  // Try to release at least num_pages for reuse by the OS.  Returns
-  // the actual number of pages released, which may be less than
-  // num_pages if there weren't enough pages to release. The result
-  // may also be larger than num_pages since page_heap might decide to
-  // release one large range instead of fragmenting it into two
-  // smaller released and unreleased ranges.
-  Length ReleaseAtLeastNPages(Length num_pages);
-
-  // Return 0 if we have no information, or else the correct sizeclass for p.
-  // Reads and writes to pagemap_cache_ do not require locking.
-  // The entries are 64 bits on 64-bit hardware and 16 bits on
-  // 32-bit hardware, and we don't mind raciness as long as each read of
-  // an entry yields a valid entry, not a partially updated entry.
-  size_t GetSizeClassIfCached(PageID p) const {
-    return pagemap_cache_.GetOrDefault(p, 0);
-  }
-  void CacheSizeClass(PageID p, size_t cl) const { pagemap_cache_.Put(p, cl); }
-
-  bool GetAggressiveDecommit(void) {return aggressive_decommit_;}
-  void SetAggressiveDecommit(bool aggressive_decommit) {
-    aggressive_decommit_ = aggressive_decommit;
-  }
-
- private:
-  // Allocates a big block of memory for the pagemap once we reach more than
-  // 128MB
-  static const size_t kPageMapBigAllocationThreshold = 128 << 20;
-
-  // Minimum number of pages to fetch from system at a time.  Must be
-  // significantly bigger than kBlockSize to amortize system-call
-  // overhead, and also to reduce external fragementation.  Also, we
-  // should keep this value big because various incarnations of Linux
-  // have small limits on the number of mmap() regions per
-  // address-space.
-  // REQUIRED: kMinSystemAlloc <= kMaxPages;
-  static const int kMinSystemAlloc = kMaxPages;
-
-  // Never delay scavenging for more than the following number of
-  // deallocated pages.  With 4K pages, this comes to 4GB of
-  // deallocation.
-  static const int kMaxReleaseDelay = 1 << 20;
-
-  // If there is nothing to release, wait for so many pages before
-  // scavenging again.  With 4K pages, this comes to 1GB of memory.
-  static const int kDefaultReleaseDelay = 1 << 18;
-
-  // Pick the appropriate map and cache types based on pointer size
-  typedef MapSelector<kAddressBits>::Type PageMap;
-  typedef MapSelector<kAddressBits>::CacheType PageMapCache;
-  PageMap pagemap_;
-  mutable PageMapCache pagemap_cache_;
-
-  // We segregate spans of a given size into two circular linked
-  // lists: one for normal spans, and one for spans whose memory
-  // has been returned to the system.
-  struct SpanList {
-    Span        normal;
-    Span        returned;
-  };
-
-  // List of free spans of length >= kMaxPages
-  SpanList large_;
-
-  // Array mapping from span length to a doubly linked list of free spans
-  SpanList free_[kMaxPages];
-
-  // Statistics on system, free, and unmapped bytes
-  Stats stats_;
-
-  Span* SearchFreeAndLargeLists(Length n);
-
-  bool GrowHeap(Length n);
-
-  // REQUIRES: span->length >= n
-  // REQUIRES: span->location != IN_USE
-  // Remove span from its free list, and move any leftover part of
-  // span into appropriate free lists.  Also update "span" to have
-  // length exactly "n" and mark it as non-free so it can be returned
-  // to the client.  After all that, decrease free_pages_ by n and
-  // return span.
-  Span* Carve(Span* span, Length n);
-
-  void RecordSpan(Span* span) {
-    pagemap_.set(span->start, span);
-    if (span->length > 1) {
-      pagemap_.set(span->start + span->length - 1, span);
-    }
-  }
-
-  // Allocate a large span of length == n.  If successful, returns a
-  // span of exactly the specified length.  Else, returns NULL.
-  Span* AllocLarge(Length n);
-
-  // Coalesce span with neighboring spans if possible, prepend to
-  // appropriate free list, and adjust stats.
-  void MergeIntoFreeList(Span* span);
-
-  // Commit the span.
-  void CommitSpan(Span* span);
-
-  // Decommit the span.
-  bool DecommitSpan(Span* span);
-
-  // Prepends span to appropriate free list, and adjusts stats.
-  void PrependToFreeList(Span* span);
-
-  // Removes span from its free list, and adjust stats.
-  void RemoveFromFreeList(Span* span);
-
-  // Incrementally release some memory to the system.
-  // IncrementalScavenge(n) is called whenever n pages are freed.
-  void IncrementalScavenge(Length n);
-
-  // Release the last span on the normal portion of this list.
-  // Return the length of that span or zero if release failed.
-  Length ReleaseLastNormalSpan(SpanList* slist);
-
-  // Checks if we are allowed to take more memory from the system.
-  // If limit is reached and allowRelease is true, tries to release
-  // some unused spans.
-  bool EnsureLimit(Length n, bool allowRelease = true);
-
-  bool MayMergeSpans(Span *span, Span *other);
-
-  // Number of pages to deallocate before doing more scavenging
-  int64_t scavenge_counter_;
-
-  // Index of last free list where we released memory to the OS.
-  int release_index_;
-
-  bool aggressive_decommit_;
-};
-
-}  // namespace tcmalloc
-
-#ifdef _MSC_VER
-#pragma warning(pop)
-#endif
-
-#endif  // TCMALLOC_PAGE_HEAP_H_

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/bb3371c3/third_party/gperftools/src/page_heap_allocator.h
----------------------------------------------------------------------
diff --git a/third_party/gperftools/src/page_heap_allocator.h b/third_party/gperftools/src/page_heap_allocator.h
deleted file mode 100644
index 892d1c1..0000000
--- a/third_party/gperftools/src/page_heap_allocator.h
+++ /dev/null
@@ -1,114 +0,0 @@
-// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
-// Copyright (c) 2008, Google Inc.
-// All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// ---
-// Author: Sanjay Ghemawat <opensource@google.com>
-
-#ifndef TCMALLOC_PAGE_HEAP_ALLOCATOR_H_
-#define TCMALLOC_PAGE_HEAP_ALLOCATOR_H_
-
-#include <stddef.h>                     // for NULL, size_t
-
-#include "common.h"            // for MetaDataAlloc
-#include "internal_logging.h"  // for ASSERT
-
-namespace tcmalloc {
-
-// Simple allocator for objects of a specified type.  External locking
-// is required before accessing one of these objects.
-template <class T>
-class PageHeapAllocator {
- public:
-  // We use an explicit Init function because these variables are statically
-  // allocated and their constructors might not have run by the time some
-  // other static variable tries to allocate memory.
-  void Init() {
-    ASSERT(sizeof(T) <= kAllocIncrement);
-    inuse_ = 0;
-    free_area_ = NULL;
-    free_avail_ = 0;
-    free_list_ = NULL;
-    // Reserve some space at the beginning to avoid fragmentation.
-    Delete(New());
-  }
-
-  T* New() {
-    // Consult free list
-    void* result;
-    if (free_list_ != NULL) {
-      result = free_list_;
-      free_list_ = *(reinterpret_cast<void**>(result));
-    } else {
-      if (free_avail_ < sizeof(T)) {
-        // Need more room. We assume that MetaDataAlloc returns
-        // suitably aligned memory.
-        free_area_ = reinterpret_cast<char*>(MetaDataAlloc(kAllocIncrement));
-        if (free_area_ == NULL) {
-          Log(kCrash, __FILE__, __LINE__,
-              "FATAL ERROR: Out of memory trying to allocate internal "
-              "tcmalloc data (bytes, object-size)",
-              kAllocIncrement, sizeof(T));
-        }
-        free_avail_ = kAllocIncrement;
-      }
-      result = free_area_;
-      free_area_ += sizeof(T);
-      free_avail_ -= sizeof(T);
-    }
-    inuse_++;
-    return reinterpret_cast<T*>(result);
-  }
-
-  void Delete(T* p) {
-    *(reinterpret_cast<void**>(p)) = free_list_;
-    free_list_ = p;
-    inuse_--;
-  }
-
-  int inuse() const { return inuse_; }
-
- private:
-  // How much to allocate from system at a time
-  static const int kAllocIncrement = 128 << 10;
-
-  // Free area from which to carve new objects
-  char* free_area_;
-  size_t free_avail_;
-
-  // Free list of already carved objects
-  void* free_list_;
-
-  // Number of allocated but unfreed objects
-  int inuse_;
-};
-
-}  // namespace tcmalloc
-
-#endif  // TCMALLOC_PAGE_HEAP_ALLOCATOR_H_

http://git-wip-us.apache.org/repos/asf/incubator-quickstep/blob/bb3371c3/third_party/gperftools/src/pagemap.h
----------------------------------------------------------------------
diff --git a/third_party/gperftools/src/pagemap.h b/third_party/gperftools/src/pagemap.h
deleted file mode 100644
index dd94423..0000000
--- a/third_party/gperftools/src/pagemap.h
+++ /dev/null
@@ -1,324 +0,0 @@
-// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
-// Copyright (c) 2005, Google Inc.
-// All rights reserved.
-// 
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-// 
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-// 
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// ---
-// Author: Sanjay Ghemawat <opensource@google.com>
-//
-// A data structure used by the caching malloc.  It maps from page# to
-// a pointer that contains info about that page.  We use two
-// representations: one for 32-bit addresses, and another for 64 bit
-// addresses.  Both representations provide the same interface.  The
-// first representation is implemented as a flat array, the seconds as
-// a three-level radix tree that strips away approximately 1/3rd of
-// the bits every time.
-//
-// The BITS parameter should be the number of bits required to hold
-// a page number.  E.g., with 32 bit pointers and 4K pages (i.e.,
-// page offset fits in lower 12 bits), BITS == 20.
-
-#ifndef TCMALLOC_PAGEMAP_H_
-#define TCMALLOC_PAGEMAP_H_
-
-#include "config.h"
-
-#include <stddef.h>                     // for NULL, size_t
-#include <string.h>                     // for memset
-#if defined HAVE_STDINT_H
-#include <stdint.h>
-#elif defined HAVE_INTTYPES_H
-#include <inttypes.h>
-#else
-#include <sys/types.h>
-#endif
-#include "internal_logging.h"  // for ASSERT
-
-// Single-level array
-template <int BITS>
-class TCMalloc_PageMap1 {
- private:
-  static const int LENGTH = 1 << BITS;
-
-  void** array_;
-
- public:
-  typedef uintptr_t Number;
-
-  explicit TCMalloc_PageMap1(void* (*allocator)(size_t)) {
-    array_ = reinterpret_cast<void**>((*allocator)(sizeof(void*) << BITS));
-    memset(array_, 0, sizeof(void*) << BITS);
-  }
-
-  // Ensure that the map contains initialized entries "x .. x+n-1".
-  // Returns true if successful, false if we could not allocate memory.
-  bool Ensure(Number x, size_t n) {
-    // Nothing to do since flat array was allocated at start.  All
-    // that's left is to check for overflow (that is, we don't want to
-    // ensure a number y where array_[y] would be an out-of-bounds
-    // access).
-    return n <= LENGTH - x;   // an overflow-free way to do "x + n <= LENGTH"
-  }
-
-  void PreallocateMoreMemory() {}
-
-  // Return the current value for KEY.  Returns NULL if not yet set,
-  // or if k is out of range.
-  void* get(Number k) const {
-    if ((k >> BITS) > 0) {
-      return NULL;
-    }
-    return array_[k];
-  }
-
-  // REQUIRES "k" is in range "[0,2^BITS-1]".
-  // REQUIRES "k" has been ensured before.
-  //
-  // Sets the value 'v' for key 'k'.
-  void set(Number k, void* v) {
-    array_[k] = v;
-  }
-
-  // Return the first non-NULL pointer found in this map for
-  // a page number >= k.  Returns NULL if no such number is found.
-  void* Next(Number k) const {
-    while (k < (1 << BITS)) {
-      if (array_[k] != NULL) return array_[k];
-      k++;
-    }
-    return NULL;
-  }
-};
-
-// Two-level radix tree
-template <int BITS>
-class TCMalloc_PageMap2 {
- private:
-  // Put 32 entries in the root and (2^BITS)/32 entries in each leaf.
-  static const int ROOT_BITS = 5;
-  static const int ROOT_LENGTH = 1 << ROOT_BITS;
-
-  static const int LEAF_BITS = BITS - ROOT_BITS;
-  static const int LEAF_LENGTH = 1 << LEAF_BITS;
-
-  // Leaf node
-  struct Leaf {
-    void* values[LEAF_LENGTH];
-  };
-
-  Leaf* root_[ROOT_LENGTH];             // Pointers to 32 child nodes
-  void* (*allocator_)(size_t);          // Memory allocator
-
- public:
-  typedef uintptr_t Number;
-
-  explicit TCMalloc_PageMap2(void* (*allocator)(size_t)) {
-    allocator_ = allocator;
-    memset(root_, 0, sizeof(root_));
-  }
-
-  void* get(Number k) const {
-    const Number i1 = k >> LEAF_BITS;
-    const Number i2 = k & (LEAF_LENGTH-1);
-    if ((k >> BITS) > 0 || root_[i1] == NULL) {
-      return NULL;
-    }
-    return root_[i1]->values[i2];
-  }
-
-  void set(Number k, void* v) {
-    const Number i1 = k >> LEAF_BITS;
-    const Number i2 = k & (LEAF_LENGTH-1);
-    ASSERT(i1 < ROOT_LENGTH);
-    root_[i1]->values[i2] = v;
-  }
-
-  bool Ensure(Number start, size_t n) {
-    for (Number key = start; key <= start + n - 1; ) {
-      const Number i1 = key >> LEAF_BITS;
-
-      // Check for overflow
-      if (i1 >= ROOT_LENGTH)
-        return false;
-
-      // Make 2nd level node if necessary
-      if (root_[i1] == NULL) {
-        Leaf* leaf = reinterpret_cast<Leaf*>((*allocator_)(sizeof(Leaf)));
-        if (leaf == NULL) return false;
-        memset(leaf, 0, sizeof(*leaf));
-        root_[i1] = leaf;
-      }
-
-      // Advance key past whatever is covered by this leaf node
-      key = ((key >> LEAF_BITS) + 1) << LEAF_BITS;
-    }
-    return true;
-  }
-
-  void PreallocateMoreMemory() {
-    // Allocate enough to keep track of all possible pages
-    Ensure(0, 1 << BITS);
-  }
-
-  void* Next(Number k) const {
-    while (k < (1 << BITS)) {
-      const Number i1 = k >> LEAF_BITS;
-      Leaf* leaf = root_[i1];
-      if (leaf != NULL) {
-        // Scan forward in leaf
-        for (Number i2 = k & (LEAF_LENGTH - 1); i2 < LEAF_LENGTH; i2++) {
-          if (leaf->values[i2] != NULL) {
-            return leaf->values[i2];
-          }
-        }
-      }
-      // Skip to next top-level entry
-      k = (i1 + 1) << LEAF_BITS;
-    }
-    return NULL;
-  }
-};
-
-// Three-level radix tree
-template <int BITS>
-class TCMalloc_PageMap3 {
- private:
-  // How many bits should we consume at each interior level
-  static const int INTERIOR_BITS = (BITS + 2) / 3; // Round-up
-  static const int INTERIOR_LENGTH = 1 << INTERIOR_BITS;
-
-  // How many bits should we consume at leaf level
-  static const int LEAF_BITS = BITS - 2*INTERIOR_BITS;
-  static const int LEAF_LENGTH = 1 << LEAF_BITS;
-
-  // Interior node
-  struct Node {
-    Node* ptrs[INTERIOR_LENGTH];
-  };
-
-  // Leaf node
-  struct Leaf {
-    void* values[LEAF_LENGTH];
-  };
-
-  Node* root_;                          // Root of radix tree
-  void* (*allocator_)(size_t);          // Memory allocator
-
-  Node* NewNode() {
-    Node* result = reinterpret_cast<Node*>((*allocator_)(sizeof(Node)));
-    if (result != NULL) {
-      memset(result, 0, sizeof(*result));
-    }
-    return result;
-  }
-
- public:
-  typedef uintptr_t Number;
-
-  explicit TCMalloc_PageMap3(void* (*allocator)(size_t)) {
-    allocator_ = allocator;
-    root_ = NewNode();
-  }
-
-  void* get(Number k) const {
-    const Number i1 = k >> (LEAF_BITS + INTERIOR_BITS);
-    const Number i2 = (k >> LEAF_BITS) & (INTERIOR_LENGTH-1);
-    const Number i3 = k & (LEAF_LENGTH-1);
-    if ((k >> BITS) > 0 ||
-        root_->ptrs[i1] == NULL || root_->ptrs[i1]->ptrs[i2] == NULL) {
-      return NULL;
-    }
-    return reinterpret_cast<Leaf*>(root_->ptrs[i1]->ptrs[i2])->values[i3];
-  }
-
-  void set(Number k, void* v) {
-    ASSERT(k >> BITS == 0);
-    const Number i1 = k >> (LEAF_BITS + INTERIOR_BITS);
-    const Number i2 = (k >> LEAF_BITS) & (INTERIOR_LENGTH-1);
-    const Number i3 = k & (LEAF_LENGTH-1);
-    reinterpret_cast<Leaf*>(root_->ptrs[i1]->ptrs[i2])->values[i3] = v;
-  }
-
-  bool Ensure(Number start, size_t n) {
-    for (Number key = start; key <= start + n - 1; ) {
-      const Number i1 = key >> (LEAF_BITS + INTERIOR_BITS);
-      const Number i2 = (key >> LEAF_BITS) & (INTERIOR_LENGTH-1);
-
-      // Check for overflow
-      if (i1 >= INTERIOR_LENGTH || i2 >= INTERIOR_LENGTH)
-        return false;
-
-      // Make 2nd level node if necessary
-      if (root_->ptrs[i1] == NULL) {
-        Node* n = NewNode();
-        if (n == NULL) return false;
-        root_->ptrs[i1] = n;
-      }
-
-      // Make leaf node if necessary
-      if (root_->ptrs[i1]->ptrs[i2] == NULL) {
-        Leaf* leaf = reinterpret_cast<Leaf*>((*allocator_)(sizeof(Leaf)));
-        if (leaf == NULL) return false;
-        memset(leaf, 0, sizeof(*leaf));
-        root_->ptrs[i1]->ptrs[i2] = reinterpret_cast<Node*>(leaf);
-      }
-
-      // Advance key past whatever is covered by this leaf node
-      key = ((key >> LEAF_BITS) + 1) << LEAF_BITS;
-    }
-    return true;
-  }
-
-  void PreallocateMoreMemory() {
-  }
-
-  void* Next(Number k) const {
-    while (k < (Number(1) << BITS)) {
-      const Number i1 = k >> (LEAF_BITS + INTERIOR_BITS);
-      const Number i2 = (k >> LEAF_BITS) & (INTERIOR_LENGTH-1);
-      if (root_->ptrs[i1] == NULL) {
-        // Advance to next top-level entry
-        k = (i1 + 1) << (LEAF_BITS + INTERIOR_BITS);
-      } else {
-        Leaf* leaf = reinterpret_cast<Leaf*>(root_->ptrs[i1]->ptrs[i2]);
-        if (leaf != NULL) {
-          for (Number i3 = (k & (LEAF_LENGTH-1)); i3 < LEAF_LENGTH; i3++) {
-            if (leaf->values[i3] != NULL) {
-              return leaf->values[i3];
-            }
-          }
-        }
-        // Advance to next interior entry
-        k = ((k >> LEAF_BITS) + 1) << LEAF_BITS;
-      }
-    }
-    return NULL;
-  }
-};
-
-#endif  // TCMALLOC_PAGEMAP_H_