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javac++androidlinuxc#windowsobjective-ccocoa誰得qtpythonphprubygameguibathyscaphec計画中(planning stage)翻訳omegatframeworktwitterdomtestvb.netdirectxゲームエンジンbtronarduinopreviewer

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修订版3e9d90eb2490ccf6bb74abed6e1defcac32a39b4 (tree)
时间2011-01-17 22:37:43
作者berupon <berupon@gmai...>
Commiterberupon

Log Message

planning interface

更改概述

差异

--- /dev/null
+++ b/File.cpp
@@ -0,0 +1,60 @@
1+#include "stdafx.h"
2+#include "File.h"
3+
4+#include <io.h>
5+#include <assert.h>
6+#include <memory.h>
7+#include <stdio.h>
8+
9+#include <windows.h>
10+
11+File::File(HANDLE hFile)
12+ :
13+ hFile_(hFile)
14+{
15+}
16+
17+File::File(FILE* pFile)
18+{
19+ hFile_ = (HANDLE) _get_osfhandle(_fileno(pFile));
20+}
21+
22+BOOL File::Read(void* pBuffer, DWORD nNumberOfBytesToRead, DWORD& nNumberOfBytesRead)
23+{
24+ return ReadFile(hFile_, pBuffer, nNumberOfBytesToRead, &nNumberOfBytesRead, NULL);
25+}
26+
27+BOOL File::Write(const void* pBuffer, DWORD nNumberOfBytesToWrite, DWORD& nNumberOfBytesWritten)
28+{
29+ return WriteFile(hFile_, pBuffer, nNumberOfBytesToWrite, &nNumberOfBytesWritten, NULL);
30+}
31+
32+DWORD File::Seek(LONG lDistanceToMove, DWORD dwMoveMethod)
33+{
34+ return SetFilePointer(hFile_, lDistanceToMove, NULL, dwMoveMethod);
35+}
36+
37+DWORD File::Tell() const
38+{
39+ /*
40+ -- Reference --
41+ http://nukz.net/reference/fileio/hh/winbase/filesio_3vhu.htm
42+ */
43+ return SetFilePointer(
44+ hFile_, // must have GENERIC_READ and/or GENERIC_WRITE
45+ 0, // do not move pointer
46+ NULL, // hFile is not large enough to need this pointer
47+ FILE_CURRENT
48+ ); // provides offset from current position
49+}
50+
51+DWORD File::Size() const
52+{
53+ return GetFileSize(hFile_, NULL);
54+}
55+
56+BOOL File::Flush()
57+{
58+ return FlushFileBuffers(hFile_);
59+}
60+
--- /dev/null
+++ b/File.h
@@ -0,0 +1,32 @@
1+#pragma once
2+
3+#include "IFile.h"
4+
5+#include <stdio.h>
6+
7+class File : public IFile
8+{
9+public:
10+ File(HANDLE hFile);
11+
12+ File(FILE* pFile);
13+
14+ BOOL Read(void* pBuffer, DWORD nNumberOfBytesToRead, DWORD& nNumberOfBytesRead);
15+
16+ BOOL Write(const void* pBuffer, DWORD nNumberOfBytesToWrite, DWORD& nNumberOfBytesWritten);
17+
18+ DWORD Seek(LONG lDistanceToMove, DWORD dwMoveMethod);
19+
20+ DWORD Tell() const;
21+
22+ DWORD Size() const;
23+
24+ BOOL Flush();
25+
26+ bool HasBuffer() const { return false; }
27+ virtual const void* GetBuffer() const { return 0; }
28+
29+private:
30+ HANDLE hFile_;
31+};
32+
--- /dev/null
+++ b/IFile.h
@@ -0,0 +1,35 @@
1+#pragma once
2+
3+#include <windows.h>
4+
5+/*!
6+
7+概要
8+ 画像の入出力用に仮想的にFileを扱えるようにする
9+
10+制限
11+ 非同期操作には対応しない
12+ 2GBまで
13+
14+備考
15+ CxImage by Davide Pizzolato (http://www.xdp.it/cximage.htm) を参考にしました。
16+
17+ InterfaceをWindowsAPIのFile関数に似せています
18+
19+*/
20+
21+class IFile
22+{
23+public:
24+ virtual BOOL Read(void* pBuffer, DWORD nNumberOfBytesToRead, DWORD& nNumberOfBytesRead) = 0;
25+ virtual BOOL Write(const void* pBuffer, DWORD nNumberOfBytesToWrite, DWORD& nNumberOfBytesWritten) = 0;
26+ virtual DWORD Seek(LONG lDistanceToMove, DWORD dwMoveMethod) = 0;
27+ virtual DWORD Tell() const = 0;
28+ virtual DWORD Size() const = 0;
29+ virtual bool IsEof() const { return Tell() == Size(); }
30+ virtual BOOL Flush() = 0;
31+
32+ virtual bool HasBuffer() const = 0;
33+ virtual const void* GetBuffer() const = 0;
34+};
35+
--- /dev/null
+++ b/MemoryFile.cpp
@@ -0,0 +1,59 @@
1+#include "stdafx.h"
2+#include "MemoryFile.h"
3+
4+MemoryFile::MemoryFile(void* pBuff, size_t buffSize)
5+ :
6+ pBuff_(pBuff),
7+ buffSize_(buffSize)
8+{
9+}
10+
11+BOOL MemoryFile::Read(void* pBuffer, DWORD nNumberOfBytesToRead, DWORD& nNumberOfBytesRead)
12+{
13+ DWORD fileSize = Size();
14+ nNumberOfBytesRead = (fileSize < curPos_+nNumberOfBytesToRead) ? (fileSize - curPos_) : nNumberOfBytesToRead;
15+ memcpy(pBuffer, (BYTE*)pBuff_+curPos_, nNumberOfBytesRead);
16+ Seek(nNumberOfBytesRead, FILE_CURRENT);
17+ return TRUE;
18+}
19+
20+BOOL MemoryFile::Write(const void* pBuffer, DWORD nNumberOfBytesToWrite, DWORD& nNumberOfBytesWritten)
21+{
22+ memcpy((BYTE*)pBuff_+curPos_, pBuffer, nNumberOfBytesToWrite);
23+ nNumberOfBytesWritten = nNumberOfBytesToWrite;
24+ Seek(nNumberOfBytesToWrite, FILE_CURRENT);
25+ return TRUE;
26+}
27+
28+DWORD MemoryFile::Seek(LONG lDistanceToMove, DWORD dwMoveMethod)
29+{
30+ switch (dwMoveMethod) {
31+ case FILE_BEGIN:
32+ curPos_ = lDistanceToMove;
33+ break;
34+ case FILE_CURRENT:
35+ curPos_ += lDistanceToMove;
36+ break;
37+ case FILE_END:
38+ curPos_ += buffSize_ + lDistanceToMove;
39+ break;
40+ }
41+ assert(0 <= curPos_ && curPos_ <= buffSize_);
42+ return curPos_;
43+}
44+
45+DWORD MemoryFile::Tell() const
46+{
47+ return curPos_;
48+}
49+
50+DWORD MemoryFile::Size() const
51+{
52+ return buffSize_;
53+}
54+
55+BOOL MemoryFile::Flush()
56+{
57+ return TRUE;
58+}
59+
--- /dev/null
+++ b/MemoryFile.h
@@ -0,0 +1,31 @@
1+#pragma once
2+
3+#include "IFile.h"
4+
5+class MemoryFile : public IFile
6+{
7+public:
8+ MemoryFile(void* pBuff, size_t buffSize);
9+
10+ BOOL Read(void* pBuffer, DWORD nNumberOfBytesToRead, DWORD& nNumberOfBytesRead);
11+
12+ BOOL Write(const void* pBuffer, DWORD nNumberOfBytesToWrite, DWORD& nNumberOfBytesWritten);
13+
14+ DWORD Seek(LONG lDistanceToMove, DWORD dwMoveMethod);
15+
16+ DWORD Tell() const;
17+
18+ DWORD Size() const;
19+
20+ BOOL Flush();
21+
22+ bool HasBuffer() const { return true; }
23+ virtual const void* GetBuffer() const { return pBuff_; }
24+
25+private:
26+ void* pBuff_;
27+ DWORD buffSize_;
28+
29+ DWORD curPos_;
30+};
31+
--- a/bson/bson.h
+++ b/bson/bson.h
@@ -25,15 +25,42 @@ enum ElementType {
2525 ElementType_MaxKey = 0x7F,
2626 };
2727
28+template <typename T>
29+struct Document
30+{
31+ Document(T& writer)
32+ :
33+ w_(writer)
34+ {
35+ w_.EnterDocument();
36+ }
37+ ~Document()
38+ {
39+ w_.LeaveDocument();
40+ }
41+private:
42+ T& w_;
43+};
44+
2845 struct IReader {
29- const char* GetName() const;
30- ElementType GetType() const;
31- const char* GetDataPtr() const;
32- const char** GetCurrentPath() const;
46+ const char* ReadElementName() const;
47+ ElementType ReadElementType() const;
48+ const char* ReadElementDataPtr() const;
49+
50+ void ReadElement_Double(double& val) const;
51+ void ReadElement_String(char* str, uint32_t& strLen) const;
52+ void ReadElement_Binary(uint32_t& nBytes, BinarySubType& subType, char* data) const;
53+ void ReadElement_Boolean(bool& val);
54+ void ReadElement_Regex(char* pattern, char* option);
55+ void ReadElement_Int32(int32_t& val);
56+ void ReadElement_Int64(int64_t& val);
57+
58+ const char** CurrentPath() const;
3359
34- bool ReadNextElement();
35- bool EnterDocument();
36- bool LeaveDocument();
60+ bool MoveToNextElement();
61+
62+ virtual bool EnterDocument() = 0;
63+ virtual bool LeaveDocument() = 0;
3764 };
3865
3966 enum BinarySubType {
@@ -56,43 +83,13 @@ struct IWriter {
5683 void WriteElement_Regex(const char* name, const char* pattern, const char* option) { WriteElementHead(ElementType_Regex, name); WriteCString(pattern); WriteCString(option); }
5784 void WriteElement_Int32(const char* name, int32_t val) { WriteElementHead(ElementType_Int32, name); WriteInt32(val); }
5885 void WriteElement_Int64(const char* name, int64_t val) { WriteElementHead(ElementType_Int64, name); WriteInt64(val); }
59- void WriteElement(const char* name, ElementType type, const char* data) {
60- WriteElementHead(type, name);
61- size_t len;
62- switch (type) {
63- case ElementType_String:
64- case ElementType_JavaScriptCode:
65- case ElementType_Symbol:
66- break;
67- case ElementType_Document:
68- break;
69- case ElementType_Binary:
70- break;
71- case ElementType_Boolean:
72- len = 1;
73- break;
74- case ElementType_Null:
75- len = 0;
76- break;
77- case ElementType_Regex:
78- break;
79- case ElementType_Int32:
80- len = 4;
81- break;
82- case ElementType_Double:
83- case ElementType_UTCdatetime:
84- case ElementType_TimeStamp:
85- case ElementType_Int64:
86- len = 8;
87- break;
88- }
89- Write(data, len);
90- }
91- void EnterDocument(); // start writing document
92- void LeaveDocument();
9386
87+ virtual void EnterDocument() = 0; // start writing document
88+ virtual void LeaveDocument() = 0;
89+
90+private:
9491 // device
95- void Write(const char* data, uint32_t len);
92+ virtual void Write(const char* data, uint32_t len) = 0;
9693
9794 // impl
9895 void WriteElementHead(ElementType type, const char* name) { WriteInt8(type); WriteCString(name); }
@@ -107,11 +104,5 @@ struct IWriter {
107104
108105 };
109106
110-struct FileReader : IReader {
111- const char* name_;
112- ElementType type_;
113- std::vector<const char*> path_;
114-};
115-
116107
117108 } // namespace BSON