third_party/sqlite/separate_cache_pool.patch

   1 diff --git src/pcache1.c src/pcache1.c
   2 index ad44395..e4d0705 100644
   3 --- src/pcache1.c
   4 +++ src/pcache1.c
   5 @@ -549,10 +549,12 @@ static sqlite3_pcache *pcache1Create(int szPage, int bPurgeable){
   6    int sz;               /* Bytes of memory required to allocate the new cache */
   7
   8    /*
   9 -  ** The seperateCache variable is true if each PCache has its own private
  10 +  ** The separateCache variable is true if each PCache has its own private
  11    ** PGroup.  In other words, separateCache is true for mode (1) where no
  12    ** mutexing is required.
  13    **
  14 +  **   *  Always use separate caches (mode-1) if SQLITE_SEPARATE_CACHE_POOLS
  15 +  **
  16    **   *  Always use a unified cache (mode-2) if ENABLE_MEMORY_MANAGEMENT
  17    **
  18    **   *  Always use a unified cache in single-threaded applications
  19 @@ -560,7 +562,9 @@ static sqlite3_pcache *pcache1Create(int szPage, int bPurgeable){
  20    **   *  Otherwise (if multi-threaded and ENABLE_MEMORY_MANAGEMENT is off)
  21    **      use separate caches (mode-1)
  22    */
  23 -#if defined(SQLITE_ENABLE_MEMORY_MANAGEMENT) || SQLITE_THREADSAFE==0
  24 +#ifdef SQLITE_SEPARATE_CACHE_POOLS
  25 +  const int separateCache = 1;
  26 +#elif defined(SQLITE_ENABLE_MEMORY_MANAGEMENT) || SQLITE_THREADSAFE==0
  27    const int separateCache = 0;
  28  #else
  29    int separateCache = sqlite3GlobalConfig.bCoreMutex>0;