diff options
Diffstat (limited to 'externals/grill')
| -rw-r--r-- | externals/grill/flext/source/flcontainers.h | 46 |
1 files changed, 35 insertions, 11 deletions
diff --git a/externals/grill/flext/source/flcontainers.h b/externals/grill/flext/source/flcontainers.h index 14d793de..ad32055a 100644 --- a/externals/grill/flext/source/flcontainers.h +++ b/externals/grill/flext/source/flcontainers.h @@ -12,6 +12,7 @@ WARRANTIES, see the file, "license.txt," in this distribution. \brief Lock-free container classes
This code has been adapted from the MidiShare project (c)Grame
+ http://midishare.sourceforge.net
*/
#ifndef __FLCONTAINERS_H
@@ -21,12 +22,8 @@ WARRANTIES, see the file, "license.txt," in this distribution. #include "flprefix.h"
-#if 1 //def __Pentium__
-#define VTYPE volatile
-#else
-#define VTYPE
-#endif
-
+// define that precautiously...
+// it's faster without that but we can't really know...
#define __SMP__
@@ -47,7 +44,7 @@ public: inline Cell *Avail() { return (Cell *)top; }
-#if defined(_WIN32) && defined(_MSC_VER)
+#if defined(_MSC_VER) && (defined(_WIN32))
#ifdef __SMP__
#define LOCK lock
#else
@@ -112,7 +109,7 @@ public: }
inline size_t Size() const { return ic-oc; }
-#elif defined(__GNUC__) && (defined(_X86_) || defined(__i386__) || defined(__i586__) || defined(__i686__))
+#elif defined(__GNUC__) && (defined(_X86_) || defined(__i386__))
#ifndef SMPLOCK
# ifdef __SMP__
# define SMPLOCK "lock ; "
@@ -183,6 +180,10 @@ public: :"memory", "edx");
return n;
}
+#elif defined(__GNUC__) && defined(__x86_64__)
+
+#error x86-64 architecture not supported yet
+
#elif defined(__GNUC__) && defined(__POWERPC__)
inline void Push(register Cell *cl)
{
@@ -244,13 +245,15 @@ public: }
inline size_t Size() const { return oc; }
+#else
+#error Platform not supported
#endif
private:
// don't change order!
- VTYPE size_t ic; // input (push) count
- VTYPE Cell *top; // top of the stack
- VTYPE size_t oc; // output (pop) count
+ volatile size_t ic; // input (push) count
+ volatile Cell *top; // top of the stack
+ volatile size_t oc; // output (pop) count
#ifdef __POWERPC__
size_t unused[5]; // lifo size must be at least 32 bytes
// to avoid livelock in multiprocessor
@@ -267,6 +270,17 @@ public: inline T *Pop() { return static_cast<T *>(Lifo::Pop()); }
};
+template <typename T>
+class PooledLifo
+ : public TypedLifo<T>
+{
+public:
+ inline T *New() { T *n = reuse.Pop(); return n?n:new T; }
+ inline Free(T *p) { if(reuse.Size() < Size()) reuse.Push(p); else delete p; }
+private:
+ TypedLifo<T> reuse;
+};
+
class FLEXT_SHARE Fifo
{
@@ -333,5 +347,15 @@ public: inline T *Clear() { return static_cast<T *>(Fifo::Clear()); }
};
+template <typename T>
+class PooledFifo
+ : public TypedFifo<T>
+{
+public:
+ inline T *New() { T *n = reuse.Pop(); return n?n:new T; }
+ inline Free(T *p) { if(reuse.Size() < Size()) reuse.Push(p); else delete p; }
+private:
+ TypedLifo<T> reuse;
+};
#endif
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