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| author | wolfbeast <mcwerewolf@wolfbeast.com> | 2019-03-29 16:04:01 +0100 |
|---|---|---|
| committer | wolfbeast <mcwerewolf@wolfbeast.com> | 2019-03-29 16:04:01 +0100 |
| commit | 88083f8c683c18f4de68a20c863a82a9da65db8f (patch) | |
| tree | 926656892d9d80260da02ea8ea71031b140c51df /other-licenses/7zstub/src/C/MtCoder.h | |
| parent | f999f544aad04069b03704d994a99352263f600b (diff) | |
| parent | 843e4ceffd6ce21a6e6db37419335eafdc543e18 (diff) | |
| download | UXP-88083f8c683c18f4de68a20c863a82a9da65db8f.tar UXP-88083f8c683c18f4de68a20c863a82a9da65db8f.tar.gz UXP-88083f8c683c18f4de68a20c863a82a9da65db8f.tar.lz UXP-88083f8c683c18f4de68a20c863a82a9da65db8f.tar.xz UXP-88083f8c683c18f4de68a20c863a82a9da65db8f.zip | |
Merge branch 'master' into Sync-weave
Diffstat (limited to 'other-licenses/7zstub/src/C/MtCoder.h')
| -rw-r--r-- | other-licenses/7zstub/src/C/MtCoder.h | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/other-licenses/7zstub/src/C/MtCoder.h b/other-licenses/7zstub/src/C/MtCoder.h new file mode 100644 index 000000000..7982e847c --- /dev/null +++ b/other-licenses/7zstub/src/C/MtCoder.h @@ -0,0 +1,141 @@ +/* MtCoder.h -- Multi-thread Coder
+2018-02-21 : Igor Pavlov : Public domain */
+
+#ifndef __MT_CODER_H
+#define __MT_CODER_H
+
+#include "MtDec.h"
+
+EXTERN_C_BEGIN
+
+/*
+ if ( defined MTCODER__USE_WRITE_THREAD) : main thread writes all data blocks to output stream
+ if (not defined MTCODER__USE_WRITE_THREAD) : any coder thread can write data blocks to output stream
+*/
+/* #define MTCODER__USE_WRITE_THREAD */
+
+#ifndef _7ZIP_ST
+ #define MTCODER__GET_NUM_BLOCKS_FROM_THREADS(numThreads) ((numThreads) + (numThreads) / 8 + 1)
+ #define MTCODER__THREADS_MAX 64
+ #define MTCODER__BLOCKS_MAX (MTCODER__GET_NUM_BLOCKS_FROM_THREADS(MTCODER__THREADS_MAX) + 3)
+#else
+ #define MTCODER__THREADS_MAX 1
+ #define MTCODER__BLOCKS_MAX 1
+#endif
+
+
+#ifndef _7ZIP_ST
+
+
+typedef struct
+{
+ ICompressProgress vt;
+ CMtProgress *mtProgress;
+ UInt64 inSize;
+ UInt64 outSize;
+} CMtProgressThunk;
+
+void MtProgressThunk_CreateVTable(CMtProgressThunk *p);
+
+#define MtProgressThunk_Init(p) { (p)->inSize = 0; (p)->outSize = 0; }
+
+
+struct _CMtCoder;
+
+
+typedef struct
+{
+ struct _CMtCoder *mtCoder;
+ unsigned index;
+ int stop;
+ Byte *inBuf;
+
+ CAutoResetEvent startEvent;
+ CThread thread;
+} CMtCoderThread;
+
+
+typedef struct
+{
+ SRes (*Code)(void *p, unsigned coderIndex, unsigned outBufIndex,
+ const Byte *src, size_t srcSize, int finished);
+ SRes (*Write)(void *p, unsigned outBufIndex);
+} IMtCoderCallback2;
+
+
+typedef struct
+{
+ SRes res;
+ unsigned bufIndex;
+ Bool finished;
+} CMtCoderBlock;
+
+
+typedef struct _CMtCoder
+{
+ /* input variables */
+
+ size_t blockSize; /* size of input block */
+ unsigned numThreadsMax;
+ UInt64 expectedDataSize;
+
+ ISeqInStream *inStream;
+ const Byte *inData;
+ size_t inDataSize;
+
+ ICompressProgress *progress;
+ ISzAllocPtr allocBig;
+
+ IMtCoderCallback2 *mtCallback;
+ void *mtCallbackObject;
+
+
+ /* internal variables */
+
+ size_t allocatedBufsSize;
+
+ CAutoResetEvent readEvent;
+ CSemaphore blocksSemaphore;
+
+ Bool stopReading;
+ SRes readRes;
+
+ #ifdef MTCODER__USE_WRITE_THREAD
+ CAutoResetEvent writeEvents[MTCODER__BLOCKS_MAX];
+ #else
+ CAutoResetEvent finishedEvent;
+ SRes writeRes;
+ unsigned writeIndex;
+ Byte ReadyBlocks[MTCODER__BLOCKS_MAX];
+ LONG numFinishedThreads;
+ #endif
+
+ unsigned numStartedThreadsLimit;
+ unsigned numStartedThreads;
+
+ unsigned numBlocksMax;
+ unsigned blockIndex;
+ UInt64 readProcessed;
+
+ CCriticalSection cs;
+
+ unsigned freeBlockHead;
+ unsigned freeBlockList[MTCODER__BLOCKS_MAX];
+
+ CMtProgress mtProgress;
+ CMtCoderBlock blocks[MTCODER__BLOCKS_MAX];
+ CMtCoderThread threads[MTCODER__THREADS_MAX];
+} CMtCoder;
+
+
+void MtCoder_Construct(CMtCoder *p);
+void MtCoder_Destruct(CMtCoder *p);
+SRes MtCoder_Code(CMtCoder *p);
+
+
+#endif
+
+
+EXTERN_C_END
+
+#endif
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