private static void WhackCache()
{
WindowCacheConfig config = new WindowCacheConfig();
config.SetPackedGitOpenFiles(1);
WindowCache.Reconfigure(config);
}
public override void TearDown()
{
base.TearDown();
WindowCacheConfig windowCacheConfig = new WindowCacheConfig();
WindowCache.Reconfigure(windowCacheConfig);
}
public override void SetUp()
{
WindowCacheConfig windowCacheConfig = new WindowCacheConfig();
windowCacheConfig.SetPackedGitOpenFiles(1);
WindowCache.Reconfigure(windowCacheConfig);
base.SetUp();
}
public override void SetUp()
{
WindowCacheConfig windowCacheConfig = new WindowCacheConfig();
windowCacheConfig.SetPackedGitOpenFiles(1);
WindowCache.Reconfigure(windowCacheConfig);
base.SetUp();
}
public override void SetUp()
{
base.SetUp();
WindowCacheConfig cfg = new WindowCacheConfig();
cfg.SetStreamFileThreshold(streamThreshold);
WindowCache.Reconfigure(cfg);
repo = CreateBareRepository();
wc = (WindowCursor)repo.NewObjectReader();
}
public virtual void TestCache_TooFewFiles()
{
WindowCacheConfig cfg = new WindowCacheConfig();
cfg.SetPackedGitOpenFiles(2);
WindowCache.Reconfigure(cfg);
DoCacheTests();
CheckLimits(cfg);
}
private WindowCache(WindowCacheConfig cfg)
{
tableSize = TableSize(cfg);
int lockCount = LockCount(cfg);
if (tableSize < 1)
{
throw new ArgumentException(JGitText.Get().tSizeMustBeGreaterOrEqual1);
}
if (lockCount < 1)
{
throw new ArgumentException(JGitText.Get().lockCountMustBeGreaterOrEqual1);
}
queue = new ReferenceQueue <ByteWindow>();
clock = new AtomicLong(1);
table = new AtomicReferenceArray <WindowCache.Entry>(tableSize);
locks = new WindowCache.Lock[lockCount];
for (int i = 0; i < locks.Length; i++)
{
locks[i] = new WindowCache.Lock();
}
evictLock = new ReentrantLock();
int eb = (int)(tableSize * .1);
if (64 < eb)
{
eb = 64;
}
else
{
if (eb < 4)
{
eb = 4;
}
}
if (tableSize < eb)
{
eb = tableSize;
}
evictBatch = eb;
maxFiles = cfg.GetPackedGitOpenFiles();
maxBytes = cfg.GetPackedGitLimit();
mmap = cfg.IsPackedGitMMAP();
windowSizeShift = Bits(cfg.GetPackedGitWindowSize());
windowSize = 1 << windowSizeShift;
openFiles = new AtomicInteger();
openBytes = new AtomicLong();
if (maxFiles < 1)
{
throw new ArgumentException(JGitText.Get().openFilesMustBeAtLeast1);
}
if (maxBytes < windowSize)
{
throw new ArgumentException(JGitText.Get().windowSizeMustBeLesserThanLimit);
}
}
public override void SetUp()
{
base.SetUp();
WindowCacheConfig cfg = new WindowCacheConfig();
cfg.SetStreamFileThreshold(streamThreshold);
WindowCache.Reconfigure(cfg);
repo = CreateBareRepository();
wc = (WindowCursor)repo.NewObjectReader();
}
private void CheckLimits(WindowCacheConfig cfg)
{
WindowCache cache = WindowCache.GetInstance();
NUnit.Framework.Assert.IsTrue(cache.GetOpenFiles() <= cfg.GetPackedGitOpenFiles()
);
NUnit.Framework.Assert.IsTrue(cache.GetOpenBytes() <= cfg.GetPackedGitLimit());
NUnit.Framework.Assert.IsTrue(0 < cache.GetOpenFiles());
NUnit.Framework.Assert.IsTrue(0 < cache.GetOpenBytes());
}
public virtual void TestCache_TooSmallLimit()
{
WindowCacheConfig cfg = new WindowCacheConfig();
cfg.SetPackedGitWindowSize(4096);
cfg.SetPackedGitLimit(4096);
WindowCache.Reconfigure(cfg);
DoCacheTests();
CheckLimits(cfg);
}
static DeltaBaseCache()
{
DEAD = new SoftReference<DeltaBaseCache.Entry>(null);
maxByteCount = new WindowCacheConfig().GetDeltaBaseCacheLimit();
cache = new DeltaBaseCache.Slot[CACHE_SZ];
for (int i = 0; i < CACHE_SZ; i++)
{
cache[i] = new DeltaBaseCache.Slot();
}
}
public static void Reconfigure(int packedGitLimit, int packedGitWindowSize, bool
packedGitMMAP, int deltaBaseCacheLimit)
{
WindowCacheConfig c = new WindowCacheConfig();
c.SetPackedGitLimit(packedGitLimit);
c.SetPackedGitWindowSize(packedGitWindowSize);
c.SetPackedGitMMAP(packedGitMMAP);
c.SetDeltaBaseCacheLimit(deltaBaseCacheLimit);
Reconfigure(c);
}
/// <summary>Modify the configuration of the window cache.</summary>
/// <remarks>
/// Modify the configuration of the window cache.
/// <p>
/// The new configuration is applied immediately. If the new limits are
/// smaller than what what is currently cached, older entries will be purged
/// as soon as possible to allow the cache to meet the new limit.
/// </remarks>
/// <param name="cfg">the new window cache configuration.</param>
/// <exception cref="System.ArgumentException">
/// the cache configuration contains one or more invalid
/// settings, usually too low of a limit.
/// </exception>
public static void Reconfigure(WindowCacheConfig cfg)
{
NGit.Storage.File.WindowCache nc = new NGit.Storage.File.WindowCache(cfg);
NGit.Storage.File.WindowCache oc = cache;
if (oc != null)
{
oc.RemoveAll();
}
cache = nc;
streamFileThreshold = cfg.GetStreamFileThreshold();
DeltaBaseCache.Reconfigure(cfg);
}
internal static void Reconfigure(WindowCacheConfig cfg)
{
lock (typeof(DeltaBaseCache))
{
int dbLimit = cfg.GetDeltaBaseCacheLimit();
if (maxByteCount != dbLimit)
{
maxByteCount = dbLimit;
ReleaseMemory();
}
}
}
public virtual void TestCache_Defaults()
{
WindowCacheConfig cfg = new WindowCacheConfig();
WindowCache.Reconfigure(cfg);
DoCacheTests();
CheckLimits(cfg);
WindowCache cache = WindowCache.GetInstance();
NUnit.Framework.Assert.AreEqual(6, cache.GetOpenFiles());
NUnit.Framework.Assert.AreEqual(17346, cache.GetOpenBytes());
}
internal static void Reconfigure(WindowCacheConfig cfg)
{
lock (typeof(DeltaBaseCache))
{
int dbLimit = cfg.GetDeltaBaseCacheLimit();
if (maxByteCount != dbLimit)
{
maxByteCount = dbLimit;
ReleaseMemory();
}
}
}
public virtual void TestConfigureCache_Limits1()
{
// This test is just to force coverage over some lower bounds for
// the table. We don't want the table to wind up with too small
// of a size. This is highly dependent upon the table allocation
// algorithm actually implemented in WindowCache.
//
WindowCacheConfig cfg = new WindowCacheConfig();
cfg.SetPackedGitLimit(6 * 4096 / 5);
cfg.SetPackedGitWindowSize(4096);
WindowCache.Reconfigure(cfg);
}
public virtual void TestConfigureCache_PackedGitLimit_0()
{
try
{
WindowCacheConfig cfg = new WindowCacheConfig();
cfg.SetPackedGitLimit(0);
WindowCache.Reconfigure(cfg);
NUnit.Framework.Assert.Fail("incorrectly permitted PackedGitLimit = 0");
}
catch (ArgumentException)
{
}
}
public virtual void TestConfigureCache_PackedGitLimit_0()
{
try
{
WindowCacheConfig cfg = new WindowCacheConfig();
cfg.SetPackedGitLimit(0);
WindowCache.Reconfigure(cfg);
NUnit.Framework.Assert.Fail("incorrectly permitted PackedGitLimit = 0");
}
catch (ArgumentException)
{
}
}
public virtual void TestConfigureCache_PackedGitWindowSize_4097()
{
try
{
WindowCacheConfig cfg = new WindowCacheConfig();
cfg.SetPackedGitWindowSize(4097);
WindowCache.Reconfigure(cfg);
NUnit.Framework.Assert.Fail("incorrectly permitted PackedGitWindowSize = 4097");
}
catch (ArgumentException e)
{
NUnit.Framework.Assert.AreEqual("Window size must be power of 2", e.Message);
}
}
public virtual void TestConfigureCache_PackedGitOpenFiles_0()
{
try
{
WindowCacheConfig cfg = new WindowCacheConfig();
cfg.SetPackedGitOpenFiles(0);
WindowCache.Reconfigure(cfg);
NUnit.Framework.Assert.Fail("incorrectly permitted PackedGitOpenFiles = 0");
}
catch (ArgumentException e)
{
NUnit.Framework.Assert.AreEqual("Open files must be >= 1", e.Message);
}
}
public virtual void TestConfigureCache_PackedGitWindowSize_0()
{
try
{
WindowCacheConfig cfg = new WindowCacheConfig();
cfg.SetPackedGitWindowSize(0);
WindowCache.Reconfigure(cfg);
NUnit.Framework.Assert.Fail("incorrectly permitted PackedGitWindowSize = 0");
}
catch (ArgumentException e)
{
NUnit.Framework.Assert.AreEqual("Invalid window size", e.Message);
}
}
public virtual void TestConfigureCache_PackedGitWindowSize_512()
{
try
{
WindowCacheConfig cfg = new WindowCacheConfig();
cfg.SetPackedGitWindowSize(512);
WindowCache.Reconfigure(cfg);
NUnit.Framework.Assert.Fail("incorrectly permitted PackedGitWindowSize = 512");
}
catch (ArgumentException e)
{
NUnit.Framework.Assert.AreEqual("Invalid window size", e.Message);
}
}
private static int TableSize(WindowCacheConfig cfg)
{
int wsz = cfg.GetPackedGitWindowSize();
long limit = cfg.GetPackedGitLimit();
if (wsz <= 0)
{
throw new ArgumentException(JGitText.Get().invalidWindowSize);
}
if (limit < wsz)
{
throw new ArgumentException(JGitText.Get().windowSizeMustBeLesserThanLimit);
}
return((int)Math.Min(5 * (limit / wsz) / 2, 2000000000));
}
public virtual void TestConfigureCache_PackedGitWindowSizeAbovePackedGitLimit()
{
try
{
WindowCacheConfig cfg = new WindowCacheConfig();
cfg.SetPackedGitLimit(1024);
cfg.SetPackedGitWindowSize(8192);
WindowCache.Reconfigure(cfg);
NUnit.Framework.Assert.Fail("incorrectly permitted PackedGitWindowSize > PackedGitLimit"
);
}
catch (ArgumentException e)
{
NUnit.Framework.Assert.AreEqual("Window size must be < limit", e.Message);
}
}
internal static void Reconfigure(WindowCacheConfig cfg)
{
defaultMaxByteCount = cfg.GetDeltaBaseCacheLimit();
}
public virtual void TestCache_TooFewFiles()
{
WindowCacheConfig cfg = new WindowCacheConfig();
cfg.SetPackedGitOpenFiles(2);
WindowCache.Reconfigure(cfg);
DoCacheTests();
CheckLimits(cfg);
}
public override void TearDown()
{
base.TearDown();
WindowCacheConfig windowCacheConfig = new WindowCacheConfig();
WindowCache.Reconfigure(windowCacheConfig);
}
public virtual void TestCache_TooSmallLimit()
{
WindowCacheConfig cfg = new WindowCacheConfig();
cfg.SetPackedGitWindowSize(4096);
cfg.SetPackedGitLimit(4096);
WindowCache.Reconfigure(cfg);
DoCacheTests();
CheckLimits(cfg);
}
private static void WhackCache()
{
WindowCacheConfig config = new WindowCacheConfig();
config.SetPackedGitOpenFiles(1);
WindowCache.Reconfigure(config);
}
private void CheckLimits(WindowCacheConfig cfg)
{
WindowCache cache = WindowCache.GetInstance();
NUnit.Framework.Assert.IsTrue(cache.GetOpenFiles() <= cfg.GetPackedGitOpenFiles()
);
NUnit.Framework.Assert.IsTrue(cache.GetOpenBytes() <= cfg.GetPackedGitLimit());
NUnit.Framework.Assert.IsTrue(0 < cache.GetOpenFiles());
NUnit.Framework.Assert.IsTrue(0 < cache.GetOpenBytes());
}
public virtual void TestConfigureCache_Limits1()
{
// This test is just to force coverage over some lower bounds for
// the table. We don't want the table to wind up with too small
// of a size. This is highly dependent upon the table allocation
// algorithm actually implemented in WindowCache.
//
WindowCacheConfig cfg = new WindowCacheConfig();
cfg.SetPackedGitLimit(6 * 4096 / 5);
cfg.SetPackedGitWindowSize(4096);
WindowCache.Reconfigure(cfg);
}
public virtual void TestConfigureCache_PackedGitWindowSizeAbovePackedGitLimit()
{
try
{
WindowCacheConfig cfg = new WindowCacheConfig();
cfg.SetPackedGitLimit(1024);
cfg.SetPackedGitWindowSize(8192);
WindowCache.Reconfigure(cfg);
NUnit.Framework.Assert.Fail("incorrectly permitted PackedGitWindowSize > PackedGitLimit"
);
}
catch (ArgumentException e)
{
NUnit.Framework.Assert.AreEqual("Window size must be < limit", e.Message);
}
}
public virtual void TestConfigureCache_PackedGitOpenFiles_0()
{
try
{
WindowCacheConfig cfg = new WindowCacheConfig();
cfg.SetPackedGitOpenFiles(0);
WindowCache.Reconfigure(cfg);
NUnit.Framework.Assert.Fail("incorrectly permitted PackedGitOpenFiles = 0");
}
catch (ArgumentException e)
{
NUnit.Framework.Assert.AreEqual("Open files must be >= 1", e.Message);
}
}
public virtual void TestConfigureCache_PackedGitWindowSize_4097()
{
try
{
WindowCacheConfig cfg = new WindowCacheConfig();
cfg.SetPackedGitWindowSize(4097);
WindowCache.Reconfigure(cfg);
NUnit.Framework.Assert.Fail("incorrectly permitted PackedGitWindowSize = 4097");
}
catch (ArgumentException e)
{
NUnit.Framework.Assert.AreEqual("Window size must be power of 2", e.Message);
}
}
public virtual void TestCache_Defaults()
{
WindowCacheConfig cfg = new WindowCacheConfig();
WindowCache.Reconfigure(cfg);
DoCacheTests();
CheckLimits(cfg);
WindowCache cache = WindowCache.GetInstance();
NUnit.Framework.Assert.AreEqual(6, cache.GetOpenFiles());
NUnit.Framework.Assert.AreEqual(17346, cache.GetOpenBytes());
}
private static int LockCount(WindowCacheConfig cfg)
{
return(Math.Max(cfg.GetPackedGitOpenFiles(), 32));
}
internal static void Reconfigure(WindowCacheConfig cfg)
{
defaultMaxByteCount = cfg.GetDeltaBaseCacheLimit();
}
