diff --git a/Makefile b/Makefile
index 84f77ab22..0537762b3 100644
--- a/Makefile
+++ b/Makefile
@@ -13,37 +13,32 @@ OPT = -O2 -DNDEBUG       # (A) Production use (optimized mode)
 # OPT = -O2 -g2 -DNDEBUG # (C) Profiling mode: opt, but w/debugging symbols
 #-----------------------------------------------
 
+# detect what platform we're building on
+$(shell sh ./build_detect_platform)
+# this file is generated by build_detect_platform to set build flags
+include build_config.mk
 
-UNAME := $(shell uname)
-
-ifeq ($(UNAME), Darwin)
-# To build for iOS, set PLATFORM=IOS.
-ifndef PLATFORM
-PLATFORM=OSX
-endif # PLATFORM
-PLATFORM_CFLAGS = -DLEVELDB_PLATFORM_OSX
-PORT_MODULE = port_osx.o
-else # UNAME
-PLATFORM_CFLAGS = -DLEVELDB_PLATFORM_POSIX -std=c++0x
-PORT_MODULE = port_posix.o
-endif # UNAME
-
-# Set 'SNAPPY' to 1 if you have the Snappy compression library
-# installed and want to enable its use in LevelDB
+# If Snappy is installed, add compilation and linker flags
 # (see http://code.google.com/p/snappy/)
-SNAPPY=0
-
-ifeq ($(SNAPPY), 0)
+ifeq ($(SNAPPY), 1)
+SNAPPY_CFLAGS=-DSNAPPY
+SNAPPY_LDFLAGS=-lsnappy
+else
 SNAPPY_CFLAGS=
 SNAPPY_LDFLAGS=
+endif
+
+# If Google Perf Tools are installed, add compilation and linker flags
+# (see http://code.google.com/p/google-perftools/)
+ifeq ($(GOOGLE_PERFTOOLS), 1)
+GOOGLE_PERFTOOLS_LDFLAGS=-ltcmalloc
 else
-SNAPPY_CFLAGS=-DSNAPPY
-SNAPPY_LDFLAGS=-lsnappy
+GOOGLE_PERFTOOLS_LDFLAGS=
 endif
 
-CFLAGS = -c -I. -I./include $(PLATFORM_CFLAGS) $(OPT) $(SNAPPY_CFLAGS)
+CFLAGS = -c -I. -I./include $(PORT_CFLAGS) $(PLATFORM_CCFLAGS) $(OPT) $(SNAPPY_CFLAGS)
 
-LDFLAGS=-lpthread $(SNAPPY_LDFLAGS)
+LDFLAGS=$(PLATFORM_LDFLAGS) $(SNAPPY_LDFLAGS) $(GOOGLE_PERFTOOLS_LDFLAGS)
 
 LIBOBJECTS = \
 	./db/builder.o \
@@ -59,7 +54,7 @@ LIBOBJECTS = \
 	./db/version_edit.o \
 	./db/version_set.o \
 	./db/write_batch.o \
-	./port/$(PORT_MODULE) \
+	./port/port_posix.o \
 	./table/block.o \
 	./table/block_builder.o \
 	./table/format.o \
@@ -105,19 +100,15 @@ PROGRAMS = db_bench $(TESTS)
 
 LIBRARY = libleveldb.a
 
-ifeq ($(PLATFORM), IOS)
-# Only XCode can build executable applications for iOS.
 all: $(LIBRARY)
-else
-all: $(PROGRAMS) $(LIBRARY)
-endif
 
-check: $(TESTS)
+check: $(PROGRAMS) $(TESTS)
 	for t in $(TESTS); do echo "***** Running $$t"; ./$$t || exit 1; done
 
 clean:
 	-rm -f $(PROGRAMS) $(LIBRARY) */*.o ios-x86/*/*.o ios-arm/*/*.o
-	-rmdir -p ios-x86/* ios-arm/*
+	-rm -rf ios-x86/* ios-arm/*
+	-rm build_config.mk
 
 $(LIBRARY): $(LIBOBJECTS)
 	rm -f $@
@@ -188,5 +179,3 @@ else
 	$(CC) $(CFLAGS) $< -o $@
 endif
 
-# TODO(gabor): dependencies for .o files
-# TODO(gabor): Build library
diff --git a/build_detect_platform b/build_detect_platform
new file mode 100644
index 000000000..f23068a7b
--- /dev/null
+++ b/build_detect_platform
@@ -0,0 +1,69 @@
+#!/bin/sh
+
+# Detects OS we're compiling on and generates build_config.mk,
+# which in turn gets read while processing Makefile.
+
+# build_config.mk will set the following variables:
+# - PORT_CFLAGS will either set:
+#               -DLEVELDB_PLATFORM_POSIX if cstatomic is present
+#               -DLEVELDB_PLATFORM_NOATOMIC if it is not
+# - PLATFORM_CFLAGS with compiler flags for the platform
+# - PLATFORM_LDFLAGS with linker flags for the platform
+
+# Delete existing build_config.mk
+rm -f build_config.mk
+
+# Detect OS
+case `uname -s` in
+    Darwin)
+        PLATFORM=OS_MACOSX
+        echo "PLATFORM_CFLAGS=-pthread -DOS_MACOSX" >> build_config.mk
+        echo "PLATFORM_LDFLAGS=-lpthread"  >> build_config.mk
+        ;;
+    Linux)
+        PLATFORM=OS_LINUX
+        echo "PLATFORM_CFLAGS=-pthread -DOS_LINUX" >> build_config.mk
+        echo "PLATFORM_LDFLAGS=-lpthread"  >> build_config.mk
+        ;;
+    SunOS)
+        PLATFORM=OS_SOLARIS
+        echo "PLATFORM_CFLAGS=-D_REENTRANT -DOS_SOLARIS"  >> build_config.mk
+        echo "PLATFORM_LDFLAGS=-lpthread -lrt" >> build_config.mk
+        ;;
+    *)
+        echo "Unknown platform!"
+        exit 1
+esac
+
+echo "PLATFORM=$PLATFORM" >> build_config.mk
+
+# On GCC, use libc's memcmp, not GCC's memcmp
+PORT_CFLAGS="-fno-builtin-memcmp"
+
+# Detect C++0x -- this determines whether we'll use port_noatomic.h
+# or port_posix.h by:
+# 1. Rrying to compile with -std=c++0x and including <cstdatomic>.
+# 2. If g++ returns error code, we know to use port_posix.h
+g++ $CFLAGS -std=c++0x -x c++ - -o /dev/null 2>/dev/null  <<EOF
+  #include <cstdatomic>
+  int main() {}
+EOF
+if [ "$?" = 0 ]; then
+    PORT_CFLAGS+=" -DLEVELDB_PLATFORM_POSIX -DLEVELDB_CSTDATOMIC_PRESENT -std=c++0x"
+else
+    PORT_CFLAGS+=" -DLEVELDB_PLATFORM_POSIX"
+fi
+
+# Test whether Snappy library is installed
+# http://code.google.com/p/snappy/
+g++ $CFLAGS -x c++ - -o /dev/null 2>/dev/null  <<EOF
+  #include <snappy.h>
+  int main() {}
+EOF
+if [ "$?" = 0 ]; then
+    echo "SNAPPY=1" >> build_config.mk
+else
+    echo "SNAPPY=0" >> build_config.mk
+fi
+
+echo "PORT_CFLAGS=$PORT_CFLAGS" >> build_config.mk
diff --git a/port/atomic_pointer.h b/port/atomic_pointer.h
new file mode 100644
index 000000000..3bae00717
--- /dev/null
+++ b/port/atomic_pointer.h
@@ -0,0 +1,213 @@
+// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file. See the AUTHORS file for names of contributors.
+
+// AtomicPointer provides storage for a lock-free pointer.
+// Platform-dependent implementation of AtomicPointer:
+// - If cstdatomic is present (on newer versions of gcc, it is), we use
+//   a cstdatomic-based AtomicPointer
+// - If it is not, we define processor-dependent AtomicWord operations,
+//   and then use them to build AtomicPointer
+//
+// This code is based on atomicops-internals-* in Google's perftools:
+// http://code.google.com/p/google-perftools/source/browse/#svn%2Ftrunk%2Fsrc%2Fbase
+
+#ifndef PORT_ATOMIC_POINTER_H_
+#define PORT_ATOMIC_POINTER_H_
+
+#ifdef LEVELDB_CSTDATOMIC_PRESENT
+
+///////////////////////////////////////////////////////////////////////////////
+// WE HAVE <cstdatomic>
+// Use a <cstdatomic>-based AtomicPointer
+
+#include <cstdatomic>
+#include <stdint.h>
+
+namespace leveldb {
+namespace port {
+
+// Storage for a lock-free pointer
+class AtomicPointer {
+ private:
+  std::atomic<void*> rep_;
+ public:
+  AtomicPointer() { }
+  explicit AtomicPointer(void* v) : rep_(v) { }
+  inline void* Acquire_Load() const {
+    return rep_.load(std::memory_order_acquire);
+  }
+  inline void Release_Store(void* v) {
+    rep_.store(v, std::memory_order_release);
+  }
+  inline void* NoBarrier_Load() const {
+    return rep_.load(std::memory_order_relaxed);
+  }
+  inline void NoBarrier_Store(void* v) {
+    rep_.store(v, std::memory_order_relaxed);
+  }
+};
+
+} // namespace leveldb::port
+} // namespace leveldb
+
+#else
+///////////////////////////////////////////////////////////////////////////////
+// NO <cstdatomic>
+// The entire rest of this file covers that case
+
+#if defined(_M_X64) || defined(__x86_64__)
+#define ARCH_CPU_X86_FAMILY 1
+#elif defined(_M_IX86) || defined(__i386__) || defined(__i386)
+#define ARCH_CPU_X86_FAMILY 1
+#elif defined(__ARMEL__)
+#define ARCH_CPU_ARM_FAMILY 1
+#else
+#warning Please add support for your architecture in atomicpointer.h
+#endif
+
+namespace leveldb {
+namespace port {
+namespace internal {
+
+// AtomicWord is a machine-sized pointer.
+typedef intptr_t AtomicWord;
+
+} // namespace leveldb::port::internal
+} // namespace leveldb::port
+} // namespace leveldb
+
+// Include our platform specific implementation.
+///////////////////////////////////////////////////////////////////////////////
+// Windows on x86
+#if defined(OS_WIN) && defined(COMPILER_MSVC) && defined(ARCH_CPU_X86_FAMILY)
+
+// void MemoryBarrier(void) macro is defined in windows.h:
+// http://msdn.microsoft.com/en-us/library/ms684208(v=vs.85).aspx
+// Including windows.h here; MemoryBarrier() gets used below.
+#include <windows.h>
+
+///////////////////////////////////////////////////////////////////////////////
+// Mac OS on x86
+#elif defined(OS_MACOSX) && defined(ARCH_CPU_X86_FAMILY)
+
+#include <libkern/OSAtomic.h>
+
+namespace leveldb {
+namespace port {
+namespace internal {
+
+inline void MemoryBarrier() {
+#if defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
+  // See http://gcc.gnu.org/ml/gcc/2003-04/msg01180.html for a discussion on
+  // this idiom. Also see http://en.wikipedia.org/wiki/Memory_ordering.
+  __asm__ __volatile__("" : : : "memory");
+#else
+  OSMemoryBarrier();
+#endif
+}
+
+} // namespace leveldb::port::internal
+} // namespace leveldb::port
+} // namespace leveldb
+
+///////////////////////////////////////////////////////////////////////////////
+// Any x86 CPU
+#elif defined(ARCH_CPU_X86_FAMILY)
+
+namespace leveldb {
+namespace port {
+namespace internal {
+
+inline void MemoryBarrier() {
+  __asm__ __volatile__("" : : : "memory");
+}
+
+} // namespace leveldb::port::internal
+} // namespace leveldb::port
+} // namespace leveldb
+
+#undef ATOMICOPS_COMPILER_BARRIER
+
+///////////////////////////////////////////////////////////////////////////////
+// ARM
+#elif defined(ARCH_CPU_ARM_FAMILY)
+
+namespace leveldb {
+namespace port {
+namespace internal {
+
+typedef void (*LinuxKernelMemoryBarrierFunc)(void);
+LinuxKernelMemoryBarrierFunc pLinuxKernelMemoryBarrier __attribute__((weak)) =
+    (LinuxKernelMemoryBarrierFunc) 0xffff0fa0;
+
+inline void MemoryBarrier() {
+  pLinuxKernelMemoryBarrier();
+}
+
+} // namespace leveldb::port::internal
+} // namespace leveldb::port
+} // namespace leveldb
+
+#else
+#error "Atomic operations are not supported on your platform"
+#endif
+
+///////////////////////////////////////////////////////////////////////////////
+// Implementation of AtomicPointer based on MemoryBarriers above
+
+namespace leveldb {
+namespace port {
+namespace internal {
+
+// Atomic operations using per-system MemoryBarrier()s
+
+inline AtomicWord Acquire_Load(volatile const AtomicWord* ptr) {
+  AtomicWord value = *ptr;
+  MemoryBarrier();
+  return value;
+}
+
+inline void Release_Store(volatile AtomicWord* ptr, AtomicWord value) {
+  MemoryBarrier();
+  *ptr = value;
+}
+
+inline AtomicWord NoBarrier_Load(volatile const AtomicWord* ptr) {
+  return *ptr;
+}
+
+inline void NoBarrier_Store(volatile AtomicWord* ptr, AtomicWord value) {
+  *ptr = value;
+}
+
+} // namespace leveldb::port::internal
+
+// AtomicPointer definition for systems without <cstdatomic>.
+class AtomicPointer {
+ private:
+  typedef internal::AtomicWord Rep;
+  Rep rep_;
+ public:
+  AtomicPointer() { }
+  explicit AtomicPointer(void* p) : rep_(reinterpret_cast<Rep>(p)) {}
+  inline void* Acquire_Load() const {
+    return reinterpret_cast<void*>(internal::Acquire_Load(&rep_));
+  }
+  inline void Release_Store(void* v) {
+    internal::Release_Store(&rep_, reinterpret_cast<Rep>(v));
+  }
+  inline void* NoBarrier_Load() const {
+    return reinterpret_cast<void*>(internal::NoBarrier_Load(&rep_));
+  }
+  inline void NoBarrier_Store(void* v) {
+    internal::NoBarrier_Store(&rep_, reinterpret_cast<Rep>(v));
+  }
+};
+
+} // namespace leveldb::port
+} // namespace leveldb
+
+#endif // LEVELDB_CSTDATOMIC_PRESENT
+
+#endif  // PORT_ATOMIC_POINTER_H_
diff --git a/port/port.h b/port/port.h
index e35db2337..816826b34 100644
--- a/port/port.h
+++ b/port/port.h
@@ -16,8 +16,6 @@
 #  include "port/port_chromium.h"
 #elif defined(LEVELDB_PLATFORM_ANDROID)
 #  include "port/port_android.h"
-#elif defined(LEVELDB_PLATFORM_OSX)
-#  include "port/port_osx.h"
 #endif
 
 #endif  // STORAGE_LEVELDB_PORT_PORT_H_
diff --git a/port/port_posix.h b/port/port_posix.h
index d0b061581..3f329f0f8 100644
--- a/port/port_posix.h
+++ b/port/port_posix.h
@@ -7,20 +7,46 @@
 #ifndef STORAGE_LEVELDB_PORT_PORT_POSIX_H_
 #define STORAGE_LEVELDB_PORT_PORT_POSIX_H_
 
-#include <endian.h>
+#if defined(OS_MACOSX)
+  #include <machine/endian.h>
+#elif defined(OS_SOLARIS)
+  #include <sys/isa_defs.h>
+  #ifdef _LITTLE_ENDIAN
+    #define LITTLE_ENDIAN
+  #else
+    #define BIG_ENDIAN
+  #endif
+#else
+  #include <endian.h>
+#endif
 #include <pthread.h>
 #ifdef SNAPPY
 #include <snappy.h>
 #endif
 #include <stdint.h>
 #include <string>
-#include <cstdatomic>
-#include <cstring>
+#include "port/atomic_pointer.h"
+
+#ifdef LITTLE_ENDIAN
+#define IS_LITTLE_ENDIAN true
+#else
+#define IS_LITTLE_ENDIAN (__BYTE_ORDER == __LITTLE_ENDIAN)
+#endif
+
+#if defined(OS_MACOSX) || defined(OS_SOLARIS)
+#define fread_unlocked fread
+#define fwrite_unlocked fwrite
+#define fflush_unlocked fflush
+#endif
+
+#if defined(OS_MACOSX)
+#define fdatasync fsync
+#endif
 
 namespace leveldb {
 namespace port {
 
-static const bool kLittleEndian = (__BYTE_ORDER == __LITTLE_ENDIAN);
+static const bool kLittleEndian = IS_LITTLE_ENDIAN;
 
 class CondVar;
 
@@ -54,29 +80,8 @@ class CondVar {
   Mutex* mu_;
 };
 
-// Storage for a lock-free pointer
-class AtomicPointer {
- private:
-  std::atomic<void*> rep_;
- public:
-  AtomicPointer() { }
-  explicit AtomicPointer(void* v) : rep_(v) { }
-  inline void* Acquire_Load() const {
-    return rep_.load(std::memory_order_acquire);
-  }
-  inline void Release_Store(void* v) {
-    rep_.store(v, std::memory_order_release);
-  }
-  inline void* NoBarrier_Load() const {
-    return rep_.load(std::memory_order_relaxed);
-  }
-  inline void NoBarrier_Store(void* v) {
-    rep_.store(v, std::memory_order_relaxed);
-  }
-};
-
 inline bool Snappy_Compress(const char* input, size_t input_length,
-                            std::string* output) {
+                            ::std::string* output) {
 #ifdef SNAPPY
   output->resize(snappy::MaxCompressedLength(input_length));
   size_t outlen;
@@ -89,7 +94,7 @@ inline bool Snappy_Compress(const char* input, size_t input_length,
 }
 
 inline bool Snappy_Uncompress(const char* input_data, size_t input_length,
-                              std::string* output) {
+                              ::std::string* output) {
 #ifdef SNAPPY
   size_t ulength;
   if (!snappy::GetUncompressedLength(input_data, ulength, &ulength)) {
@@ -106,7 +111,7 @@ inline bool GetHeapProfile(void (*func)(void*, const char*, int), void* arg) {
   return false;
 }
 
-}
-}
+} // namespace port
+} // namespace leveldb
 
 #endif  // STORAGE_LEVELDB_PORT_PORT_POSIX_H_
diff --git a/util/cache.cc b/util/cache.cc
index 968e6a005..5829b79fd 100644
--- a/util/cache.cc
+++ b/util/cache.cc
@@ -2,17 +2,9 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file. See the AUTHORS file for names of contributors.
 
-#if defined(LEVELDB_PLATFORM_POSIX) || defined(LEVELDB_PLATFORM_ANDROID)
-#include <unordered_set>
-#elif defined(LEVELDB_PLATFORM_OSX)
-#include <ext/hash_set>
-#elif defined(LEVELDB_PLATFORM_CHROMIUM)
-#include "base/hash_tables.h"
-#else
-#include <hash_set> // TODO(sanjay): Switch to unordered_set when possible.
-#endif
-
 #include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
 
 #include "leveldb/cache.h"
 #include "port/port.h"
@@ -33,6 +25,7 @@ namespace {
 struct LRUHandle {
   void* value;
   void (*deleter)(const Slice&, void* value);
+  LRUHandle* next_hash;
   LRUHandle* next;
   LRUHandle* prev;
   size_t charge;      // TODO(opt): Only allow uint32_t?
@@ -51,43 +44,93 @@ struct LRUHandle {
   }
 };
 
-// Pick a platform specific hash_set instantiation
-#if defined(LEVELDB_PLATFORM_CHROMIUM) && defined(OS_WIN)
-  // Microsoft's hash_set deviates from the standard. See
-  // http://msdn.microsoft.com/en-us/library/1t4xas78(v=vs.80).aspx
-  // for details. Basically the 2 param () operator is a less than and
-  // the 1 param () operator is a hash function.
-  struct HandleHashCompare : public stdext::hash_compare<LRUHandle*> {
-    size_t operator() (LRUHandle* h) const {
-      Slice k = h->key();
-      return Hash(k.data(), k.size(), 0);
+// We provide our own simple hash table since it removes a whole bunch
+// of porting hacks and is also faster than some of the built-in hash
+// table implementations in some of the compiler/runtime combinations
+// we have tested.  E.g., readrandom speeds up by ~5% over the g++
+// 4.4.3's builtin hashtable.
+class HandleTable {
+ public:
+  HandleTable() : length_(0), elems_(0), list_(NULL) { Resize(); }
+  ~HandleTable() { delete[] list_; }
+
+  LRUHandle* Lookup(LRUHandle* h) {
+    return *FindPointer(h);
+  }
+
+  LRUHandle* Insert(LRUHandle* h) {
+    LRUHandle** ptr = FindPointer(h);
+    LRUHandle* old = *ptr;
+    h->next_hash = (old == NULL ? NULL : old->next_hash);
+    *ptr = h;
+    if (old == NULL) {
+      ++elems_;
+      if (elems_ > length_) {
+        // Since each cache entry is fairly large, we aim for a small
+        // average linked list length (<= 1).
+        Resize();
+      }
     }
-    bool operator() (LRUHandle* a, LRUHandle* b) const {
-      return a->key().compare(b->key()) < 0;
+    return old;
+  }
+
+  LRUHandle* Remove(LRUHandle* h) {
+    LRUHandle** ptr = FindPointer(h);
+    LRUHandle* result = *ptr;
+    if (result != NULL) {
+      *ptr = result->next_hash;
+      --elems_;
     }
-  };
-  typedef base::hash_set<LRUHandle*, HandleHashCompare> HandleTable;
-#else
-  struct HandleHash {
-    inline size_t operator()(LRUHandle* h) const {
-      Slice k = h->key();
-      return Hash(k.data(), k.size(), 0);
+    return result;
+  }
+
+ private:
+  // The table consists of an array of buckets where each bucket is
+  // a linked list of cache entries that hash into the bucket.
+  uint32_t length_;
+  uint32_t elems_;
+  LRUHandle** list_;
+
+  // Return a pointer to slot that points to a cache entry that
+  // matches *h.  If there is no such cache entry, return a pointer to
+  // the trailing slot in the corresponding linked list.
+  LRUHandle** FindPointer(LRUHandle* h) {
+    Slice key = h->key();
+    uint32_t hash = Hash(key.data(), key.size(), 0);
+    LRUHandle** ptr = &list_[hash & (length_ - 1)];
+    while (*ptr != NULL && key != (*ptr)->key()) {
+      ptr = &(*ptr)->next_hash;
     }
-  };
+    return ptr;
+  }
 
-  struct HandleEq {
-    inline bool operator()(LRUHandle* a, LRUHandle* b) const {
-      return a->key() == b->key();
+  void Resize() {
+    uint32_t new_length = 4;
+    while (new_length < elems_) {
+      new_length *= 2;
+    }
+    LRUHandle** new_list = new LRUHandle*[new_length];
+    memset(new_list, 0, sizeof(new_list[0]) * new_length);
+    uint32_t count = 0;
+    for (int i = 0; i < length_; i++) {
+      LRUHandle* h = list_[i];
+      while (h != NULL) {
+        LRUHandle* next = h->next_hash;
+        Slice key = h->key();
+        uint32_t hash = Hash(key.data(), key.size(), 0);
+        LRUHandle** ptr = &new_list[hash & (new_length - 1)];
+        h->next_hash = *ptr;
+        *ptr = h;
+        h = next;
+        count++;
+      }
     }
-  };
-#  if defined(LEVELDB_PLATFORM_CHROMIUM)
-    typedef base::hash_set<LRUHandle*, HandleHash, HandleEq> HandleTable;
-#  elif defined(LEVELDB_PLATFORM_POSIX) || defined(LEVELDB_PLATFORM_ANDROID)
-    typedef std::unordered_set<LRUHandle*, HandleHash, HandleEq> HandleTable;
-#  else
-    typedef __gnu_cxx::hash_set<LRUHandle*, HandleHash, HandleEq> HandleTable;
-#  endif
-#endif
+    assert(elems_ == count);
+    delete[] list_;
+    list_ = new_list;
+    length_ = new_length;
+  }
+};
 
 class LRUCache : public Cache {
  public:
@@ -132,7 +175,6 @@ LRUCache::LRUCache(size_t capacity)
 }
 
 LRUCache::~LRUCache() {
-  table_.clear();
   for (LRUHandle* e = lru_.next; e != &lru_; ) {
     LRUHandle* next = e->next;
     assert(e->refs == 1);  // Error if caller has an unreleased handle
@@ -170,16 +212,13 @@ Cache::Handle* LRUCache::Lookup(const Slice& key) {
   LRUHandle dummy;
   dummy.next = &dummy;
   dummy.value = const_cast<Slice*>(&key);
-  HandleTable::iterator iter = table_.find(&dummy);
-  if (iter == table_.end()) {
-    return NULL;
-  } else {
-    LRUHandle* e = const_cast<LRUHandle*>(*iter);
+  LRUHandle* e = table_.Lookup(&dummy);
+  if (e != NULL) {
     e->refs++;
     LRU_Remove(e);
     LRU_Append(e);
-    return reinterpret_cast<Handle*>(e);
   }
+  return reinterpret_cast<Handle*>(e);
 }
 
 void* LRUCache::Value(Handle* handle) {
@@ -206,20 +245,16 @@ Cache::Handle* LRUCache::Insert(const Slice& key, void* value, size_t charge,
   LRU_Append(e);
   usage_ += charge;
 
-  std::pair<HandleTable::iterator,bool> p = table_.insert(e);
-  if (!p.second) {
-    // Kill existing entry
-    LRUHandle* old = const_cast<LRUHandle*>(*(p.first));
+  LRUHandle* old = table_.Insert(e);
+  if (old != NULL) {
     LRU_Remove(old);
-    table_.erase(p.first);
-    table_.insert(e);
     Unref(old);
   }
 
   while (usage_ > capacity_ && lru_.next != &lru_) {
     LRUHandle* old = lru_.next;
     LRU_Remove(old);
-    table_.erase(old);
+    table_.Remove(old);
     Unref(old);
   }
 
@@ -232,11 +267,9 @@ void LRUCache::Erase(const Slice& key) {
   LRUHandle dummy;
   dummy.next = &dummy;
   dummy.value = const_cast<Slice*>(&key);
-  HandleTable::iterator iter = table_.find(&dummy);
-  if (iter != table_.end()) {
-    LRUHandle* e = const_cast<LRUHandle*>(*iter);
+  LRUHandle* e = table_.Remove(&dummy);
+  if (e != NULL) {
     LRU_Remove(e);
-    table_.erase(iter);
     Unref(e);
   }
 }