{"id":1698,"date":"2019-11-07T13:41:07","date_gmt":"2019-11-07T04:41:07","guid":{"rendered":"https:\/\/www.oji-koji.com\/?p=1698"},"modified":"2021-07-28T11:29:55","modified_gmt":"2021-07-28T02:29:55","slug":"%e3%83%95%e3%82%a1%e3%82%a4%e3%83%ab%e9%80%81%e5%8f%97%e4%bf%a1%e6%a9%9f%e8%83%bd%e3%81%ae%e5%ae%9f%e8%a3%85%e3%83%aa%e3%83%b3%e3%82%b0%e3%83%90%e3%83%83%e3%83%95%e3%82%a1%e5%af%be%e5%bf%9c%e3%81%9d","status":"publish","type":"post","link":"https:\/\/www.oji-koji.com\/?p=1698","title":{"rendered":"\u30d5\u30a1\u30a4\u30eb\u9001\u53d7\u4fe1\u6a5f\u80fd\u306e\u5b9f\u88c5(\u30ea\u30f3\u30b0\u30d0\u30c3\u30d5\u30a1\u5bfe\u5fdc\u305d\u306e1)(2019\/11\/11\u66f4\u65b0)"},"content":{"rendered":"\n

\u524d\u56de\u4f5c\u6210\u3057\u305f\u3001SimpleServerTransFile(Windows<\/a>\u3001Linux<\/a>)\u3001
SimpleClientTransFile(Windows<\/a>\u3001Linux<\/a>)\u306e\u9001\u4fe1\u30fb\u53d7\u4fe1\u3068\u30d0\u30c3\u30d5\u30a1\u306e\u95a2\u4fc2\u306f\u4e0b\u56f3\u306e\u3088\u3046\u306b
\u306a\u3063\u3066\u3044\u307e\u3059\u3002
\u3010\u30af\u30e9\u30a4\u30a2\u30f3\u30c8A,\u30af\u30e9\u30a4\u30a2\u30f3\u30c8B\u3011
1.\u30ad\u30fc\u5165\u529b\u3055\u308c\u305f\u6587\u5b57\u5217\u306f\u3001\u9001\u53d7\u4fe1\u30b9\u30ec\u30c3\u30c9\u306e\u9001\u4fe1\u30d0\u30c3\u30d5\u30a1(m_pSendData<\/strong>)\u306b
\u3000\u683c\u7d0d\u3055\u308c\u307e\u3059\u3002
\u3000\u683c\u7d0d\u3055\u308c\u305f\u30c7\u30fc\u30bf\u306f\u9001\u53d7\u4fe1\u30b9\u30ec\u30c3\u30c9\u306b\u3088\u3063\u3066\u8aad\u307f\u8fbc\u307e\u308c\u9001\u4fe1\u3055\u308c\u307e\u3059\u3002
\u3010\u30b5\u30fc\u30d0\u3011
2.\u53d7\u4fe1\u3055\u308c\u305f\u30c7\u30fc\u30bf\u306f\u53d7\u4fe1\u30d0\u30c3\u30d5\u30a1(szRecvBuffer<\/strong>)\u306b\u683c\u7d0d\u3055\u308c\u307e\u3059\u3002
\u3000\u683c\u7d0d\u3055\u308c\u305f\u30c7\u30fc\u30bf\u3092\u89e3\u6790\u3057\u3001\u30c1\u30e3\u30c3\u30c8\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u914d\u4fe1\u3059\u308b\u305f\u3081\u306b\u30c1\u30e3\u30c3\u30c8\u7528\u30d0\u30c3\u30d5\u30a1
\u3000(m_pRecvData<\/strong>)\u306b\u683c\u7d0d\u3055\u308c\u307e\u3059\u3002
3.\u683c\u7d0d\u3055\u308c\u305f\u30c7\u30fc\u30bf\u306f\u30e1\u30a4\u30f3\u30b9\u30ec\u30c3\u30c9\u3067\u9806\u756a\u306b\u8aad\u307f\u8fbc\u307e\u308c\u3093\u3001\u914d\u4fe1\u5bfe\u8c61\u306e\u9001\u53d7\u4fe1\u30b9\u30ec\u30c3\u30c9\u306e
\u3000\u9001\u4fe1\u30d0\u30c3\u30d5\u30a1(m_pSendData<\/strong>)\u306b\u683c\u7d0d\u3055\u308c\u307e\u3059\u3002
\u3000\u683c\u7d0d\u3055\u308c\u305f\u30c7\u30fc\u30bf\u306f\u9001\u53d7\u4fe1\u30b9\u30ec\u30c3\u30c9\u306b\u3088\u3063\u3066\u8aad\u307f\u8fbc\u307e\u308c\u9001\u4fe1\u3055\u308c\u307e\u3059\u3002
\u3010\u30af\u30e9\u30a4\u30a2\u30f3\u30c8C\u3011
4.\u53d7\u4fe1\u3055\u308c\u305f\u30c7\u30fc\u30bf\u306f\u53d7\u4fe1\u30d0\u30c3\u30d5\u30a1(szRecvBuffer<\/strong>)\u306b\u683c\u7d0d\u3055\u308c\u307e\u3059\u3002
\u3000\u683c\u7d0d\u3055\u308c\u305f\u30c7\u30fc\u30bf\u3092\u89e3\u6790\u3057\u3001\u30c1\u30e3\u30c3\u30c8\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8868\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u3053\u308c\u3089\u306e\u30d0\u30c3\u30d5\u30a1\u306b\u306f\u3001\uff11\u7d44\u306e\u30c7\u30fc\u30bf(\u30d1\u30b1\u30c3\u30c8)\u3057\u304b\u683c\u7d0d\u3067\u304d\u306a\u3044\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002
\u524d\u306e\u30c7\u30fc\u30bf\u304c\u672a\u51e6\u7406\u306e\u6642\u3001\u6b21\u306e\u30c7\u30fc\u30bf\u3092\u683c\u7d0d\u3057\u3088\u3046\u3068\u3057\u305f\u3068\u304d\u306b\u306f\u30a8\u30e9\u30fc\u3068\u3057\u3066\u3044\u307e\u3059\u3002
\u3053\u308c\u3067\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u9001\u53d7\u4fe1\u306a\u3069\u6b21\u3005\u306b\u30c7\u30fc\u30bf\u3092\u51e6\u7406\u3057\u305f\u3044\u3068\u304d\u306b\u3001\u3046\u307e\u304f\u3044\u304b\u306a\u304b\u3063\u305f\u308a
\u901f\u5ea6\u304c\u51fa\u306a\u304b\u3063\u305f\u308a\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3002
\u305d\u3053\u3067\u3001\u3053\u3053\u3067\u306f\u6539\u826f\u30dd\u30a4\u30f3\u30c8\u3068\u3057\u3066\u3053\u308c\u3089\u306e\u30d0\u30c3\u30d5\u30a1\u3092\u30ea\u30f3\u30b0\u30d0\u30c3\u30d5\u30a1<\/strong>\u306b\u7f6e\u304d\u63db\u3048\u308b
\u3053\u3068\u3092\u3084\u3063\u3066\u307f\u307e\u3057\u3087\u3046\u3002
\u3053\u3053\u3067\u4f5c\u6210\u3059\u308b\u30ea\u30f3\u30b0\u30d0\u30c3\u30d5\u30a1<\/strong>\u306f\u3001\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u304b\u3089\u306e\u30a2\u30af\u30bb\u30b9\u3092\u8003\u616e\u3057\u3066\u540c\u671f
\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3082\u4f7f\u3046\u3053\u3068\u306b\u3057\u307e\u3057\u3087\u3046\u3002
\u307e\u305f\u3001\u4ee5\u964d\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u6a5f\u80fd\u8ffd\u52a0\u3082\u3059\u308b\u3053\u3068\u306b\u3057\u307e\u3059\u3002
\u5148\u305a\u306f\u30ea\u30f3\u30b0\u30d0\u30c3\u30d5\u30a1<\/strong>\u3063\u3066\u3069\u3093\u306a\u3082\u306e\u304b\u3092\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

\n
\n

\u30ea\u30f3\u30b0\u30d0\u30c3\u30d5\u30a1\u3068\u306f\u3001\u30c7\u30fc\u30bf\u3092\u30ea\u30f3\u30b0\u72b6\u306b\n\u8a18\u9332\u3059\u308b\u30d0\u30c3\u30d5\u30a1\u306e\u3053\u3068\u3067\u3001\u30c7\u30fc\u30bf\u3092\n\u7121\u9650\u306b\u9023\u7d9a\u3057\u3066\u8a18\u61b6\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\n\u3053\u306e\u6642\u3001\u30c7\u30fc\u30bf\u306f\u3001\u3082\u3063\u3068\u3082\u53e4\u3044\u3082\u306e\u304b\u3089\n\u4e0a\u66f8\u304d\u3055\u308c\u3066\u3044\u304d\u307e\u3059\u3002\n\u901a\u4fe1\u30c7\u30fc\u30bf\u306e\u69d8\u306b\u3001\u9023\u7d9a\u3057\u3066\u6ca2\u5c71\u306e\u30c7\u30fc\u30bf\n\u3092\u3084\u308a\u53d6\u308a\u3059\u308b\u5834\u5408\u306b\u6709\u52b9\u306a\u624b\u6cd5\u3067\u3059\u3002\n\u5f53\u7136\u306e\u3053\u3068\u306a\u304c\u3089\u3001\u53e4\u3044\u30c7\u30fc\u30bf\u306f\u52dd\u624b\u306b\n\u4e0a\u66f8\u304d\u3055\u308c\u3066\u3044\u304f\u306e\u3067\u3001\u4e0a\u66f8\u304d\u3055\u308c\u308b\u524d\u306b\n\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u51fa\u3059\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n\n

\n
\"\"
\u66f8\u304d\u3053\u3080\u4f4d\u7f6e\u304c T<\/strong>ail
\u8aad\u307f\u51fa\u3059\u4f4d\u7f6e\u304c H<\/strong>ead
\u30d0\u30c3\u30d5\u30a1\u30b5\u30a4\u30ba\u304c A<\/strong>llocSize<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n

Head = Tail\u306e\u6642\u306f\u30d0\u30c3\u30d5\u30a1\u306b\u4f55\u3082\u5165\u3063\u3066\u3044\u306a\u3044\u3068\u5b9a\u7fa9\u3057\u307e\u3059\u3002<\/strong>
\u8aad\u307f\u51fa\u3057\u53ef\u80fd\u30a8\u30ea\u30a2\u30b5\u30a4\u30ba(DataSize)\u306f\u6b21\u306e\u3088\u3046\u306b\u6c42\u3081\u3089\u308c\u307e\u3059\u3002
0<\/strong>—-H<\/strong>ead—–T<\/strong>ail—–A<\/strong>llocSize\u306e\u9806\u306e\u6642
\u3000DataSize:T-H<\/strong>
0<\/strong>—-T<\/strong>ail—–H<\/strong>aed—–A<\/strong>llocSize\u306e\u9806\u306e\u6642
\u3000DataSize:(A-H) + T<\/strong>
\uff08\uff0a\uff09H\u3068T\u304c\u4e00\u81f4\u3057\u305f\u6642\u306f\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u30c7\u30fc\u30bf\u6570\u30920\u3068\u3059\u308b\u306e\u3067
\u3000\u66f8\u304d\u8fbc\u307f\u53ef\u80fd\u30a8\u30ea\u30a2\u306e\u6700\u5f8c\u306fH\u306e1\u30d0\u30a4\u30c8\u524d\u307e\u3067<\/strong>\u3057\u304b\u8a31\u53ef\u3057\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

\u3053\u308c\u3092\u5b9f\u73fe\u3059\u308b\u30af\u30e9\u30b9CRingBuff\u3092\u4f5c\u308a\u307e\u3059
\u3053\u306e\u30af\u30e9\u30b9\u304c\u516c\u958b\u3059\u308b\u30e1\u30bd\u30c3\u30c9\u306f\u6b21\u306e\uff17\u500b\u3067\u3059\u3002
<\/p>\n\n\n\n

long Read(LPBYTE pbBuf, long lSize = 1);<\/strong>
\u6a5f\u80fd\uff1a\u30ea\u30f3\u30b0\u30d0\u30c3\u30d5\u30a1\u304b\u3089\u6307\u5b9a\u3055\u308c\u305f\u30d0\u30a4\u30c8\u6570\u5206\u306e\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3059\u308b
\u5f15\u6570\uff1aLPBYTE pbBuf [in\/out]\u30d0\u30c3\u30d5\u30a1
\u3000\u3000\u3000long lSize [in]\u30d0\u30c3\u30d5\u30a1\u30b5\u30a4\u30ba
\u8fd4\u5024\uff1a\u5b9f\u969b\u306b\u8aad\u307f\u8fbc\u3093\u3060\u30b5\u30a4\u30ba<\/p>\n\n\n\n

long ReadWithoutUpdateHeadPoint(LPBYTE pbBuf, long lSize = 1);<\/strong>
\u6a5f\u80fd\uff1a\u30ea\u30f3\u30b0\u30d0\u30c3\u30d5\u30a1\u304b\u3089\u6307\u5b9a\u3055\u308c\u305f\u30d0\u30a4\u30c8\u6570\u5206\u306e\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3059\u308b
\u3000\u3000\u3000\u305f\u3060\u3057\u8aad\u307f\u8fbc\u307f\u30dd\u30a4\u30f3\u30bf\u3092\u66f4\u65b0\u3057\u306a\u3044
\u3000\u3000\u3000\u53d7\u4fe1\u30c7\u30fc\u30bf\u306e\u89e3\u6790\u306e\u305f\u3081\u306b\u3001\u4eee\u8aad\u307f<\/strong>\u3092\u3059\u308b\u6a5f\u80fd
\u5f15\u6570\uff1aLPBYTE pbBuf [in\/out]\u30d0\u30c3\u30d5\u30a1
\u3000\u3000\u3000long lSize [in]\u30d0\u30c3\u30d5\u30a1\u30b5\u30a4\u30ba
\u8fd4\u5024\uff1a\u5b9f\u969b\u306b\u8aad\u307f\u8fbc\u3093\u3060\u30b5\u30a4\u30ba<\/p>\n\n\n\n

void UpdateHeadPoint(long lSize = 1);<\/strong>
\u6a5f\u80fd\uff1a\u8aad\u307f\u8fbc\u307f\u30dd\u30a4\u30f3\u30bf\u3092\u6307\u5b9a\u3055\u308c\u305f\u30d0\u30a4\u30c8\u6570\u5206\u9032\u3081\u308b
\u3000\u3000\u3000\u4eee\u8aad\u307f\u3057\u305f\u30c7\u30fc\u30bf\u3092\u30ea\u30f3\u30b0\u30d0\u30c3\u30d5\u30a1\u304b\u3089\u8aad\u307f\u8fbc\u307f\u6e08\u307f\u306b\u3059\u308b\u6a5f\u80fd<\/strong>
\u5f15\u6570\uff1along lSize [in]\u8aad\u3093\u3060\u3053\u3068\u306b\u3059\u308b\u30d0\u30a4\u30c8\u6570
\u8fd4\u5024\uff1a\u306a\u3057<\/p>\n\n\n\n

BOOL Write(LPBYTE pbBuf, long lSize = 1);<\/strong>
\u6a5f\u80fd\uff1a\u30ea\u30f3\u30b0\u30d0\u30c3\u30d5\u30a1\u306b\u6307\u5b9a\u3055\u308c\u305f\u30d0\u30a4\u30c8\u6570\u5206\u306e\u30c7\u30fc\u30bf\u3092\u66f8\u304d\u8fbc\u3080
\u5f15\u6570\uff1aLPBYTE pbBuf [in]\u30d0\u30c3\u30d5\u30a1
\u3000\u3000\u3000long lSize [in]\u30d0\u30c3\u30d5\u30a1\u30b5\u30a4\u30ba
\u8fd4\u5024\uff1aTRUE:\u66f8\u304d\u8fbc\u307f\u6210\u529f FALSE:\u66f8\u304d\u8fbc\u307f\u5931\u6557(\u7a7a\u304d\u4e0d\u8db3)<\/p>\n\n\n\n

long GetReadableSize();<\/strong>
\u6a5f\u80fd\uff1a\u30ea\u30f3\u30b0\u30d0\u30c3\u30d5\u30a1\u306b\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u30c7\u30fc\u30bf\u6570\u3092\u53d6\u5f97\u3059\u308b
\u5f15\u6570\uff1a\u306a\u3057
\u8fd4\u5024\uff1a\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u30c7\u30fc\u30bf\u6570<\/p>\n\n\n\n

long GetWriteableSize();<\/strong>
\u6a5f\u80fd\uff1a\u30ea\u30f3\u30b0\u30d0\u30c3\u30d5\u30a1\u306b\u66f8\u304d\u8fbc\u3081\u308b\u30c7\u30fc\u30bf\u6570\u3092\u53d6\u5f97\u3059\u308b
\u5f15\u6570\uff1a\u306a\u3057
\u8fd4\u5024\uff1a\u66f8\u304d\u8fbc\u3081\u308b\u30c7\u30fc\u30bf\u6570<\/p>\n\n\n\n

void Clear();<\/strong>
\u6a5f\u80fd\uff1a\u30ea\u30f3\u30b0\u30d0\u30c3\u30d5\u30a1\u3092\u7a7a\u306b\u3059\u308b
\u3000\u3000\u3000\u66f8\u304d\u8fbc\u307f\u3001\u8aad\u307f\u8fbc\u307f\u30dd\u30a4\u30f3\u30bf\u306e\u521d\u671f\u5316
\u5f15\u6570\uff1a\u306a\u3057
\u8fd4\u5024\uff1a\u306a\u3057<\/p>\n\n\n\n

\u305d\u308c\u3067\u306f\u3001\u5b9f\u969b\u306e\u30b3\u30fc\u30c9(\u30af\u30e9\u30b9CRingBuff)\u3092\u898b\u3066\u307f\u307e\u3059\u3002
H\u3068T\u304c\u4e00\u81f4\u3057\u305f\u6642\u306f\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u30c7\u30fc\u30bf\u6570\u30920\u3068\u5b9a\u7fa9\u3057\u3066\u3044\u308b\u306e\u3067\u66f8\u304d\u8fbc\u307f
\u53ef\u80fd\u30a8\u30ea\u30a2\u306e\u6700\u5f8c\u306fH\u306e1\u30d0\u30a4\u30c8\u524d\u307e\u3067\u3057\u304b\u8a31\u53ef\u3057\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u305f\u3081
\u30d0\u30c3\u30d5\u30a1\u306e\u6700\u5927\u30b5\u30a4\u30ba\u306e\u307b\u304b\u306b\u30011\u30d0\u30a4\u30c8\u5206\u591a\u3044\u78ba\u4fdd\u30b5\u30a4\u30ba(m_lAllocSize<\/strong>)\u3092
\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n

\u305d\u308c\u3067\u306f\u3001\u5b9f\u969b\u306e\u30b3\u30fc\u30c9(\u30af\u30e9\u30b9CRingBuff<\/strong>)\u3092\u898b\u3066\u307f\u307e\u3059\u3002
H\u3068T\u304c\u4e00\u81f4\u3057\u305f\u6642\u306f\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u30c7\u30fc\u30bf\u6570\u30920\u3068\u5b9a\u7fa9\u3057\u3066\u3044\u308b\u306e\u3067\u66f8\u304d\u8fbc\u307f
\u53ef\u80fd\u30a8\u30ea\u30a2\u306e\u6700\u5f8c\u306fH\u306e1\u30d0\u30a4\u30c8\u524d\u307e\u3067\u3057\u304b\u8a31\u53ef\u3057\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u305f\u3081
\u30d0\u30c3\u30d5\u30a1\u306e\u6700\u5927\u30b5\u30a4\u30ba\u306e\u307b\u304b\u306b\u30011\u30d0\u30a4\u30c8\u5206\u591a\u3044\u78ba\u4fdd\u30b5\u30a4\u30ba(m_lAllocSize<\/strong>)\u3092
\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002
Read\u3001Write\u3092\u5b9f\u65bd\u3059\u308b\u969b\u306b\u3001\u8aad\u307f\u8fbc\u307f\u53ef\u80fd\u30b5\u30a4\u30ba\u3001\u66f8\u304d\u8fbc\u307f\u53ef\u80fd\u30b5\u30a4\u30ba\u3092\u53d6\u5f97\u3059\u308b
\u5fc5\u8981\u304c\u3042\u308b\u306e\u3067\u3001\u540c\u671f\u51e6\u7406\u306e\u306a\u3044GetReadableSize0<\/strong>\u3001GetWriteableSize0<\/strong>\u3092\u5b9a\u7fa9
\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n

\u3010RingBuff.h\u3011\n#pragma once\n\n#include “stdThread.h”\n#include “MySyncObject.h”\n\n\/\/ \u66f8\u304d\u3053\u3080\u4f4d\u7f6e\u304c lTail\n\/\/ \u8aad\u307f\u51fa\u3059\u4f4d\u7f6e\u304c lHead\n\/\/ lHead = lTail\u306e\u6642\u306f\u30d0\u30c3\u30d5\u30a1\u306b\u4f55\u3082\u5165\u3063\u3066\u3044\u306a\u3044\u3068\u5b9a\u7fa9\n\/\/ 0====Head=====Tail=====AllocSize size:T-H\n\/\/ 0====Tail=====Haed=====AllocSize size:(A-H) + T\n\nclass CRingBuff\n{\npublic:\n CRingBuff(long lMaxSize);\n ~CRingBuff(void);\n\n long Read(LPBYTE pbBuf, long lSize = 1);\n long ReadWithoutUpdateHeadPoint(LPBYTE pbBuf, long lSize = 1);\n void UpdateHeadPoint(long lSize = 1);\n BOOL Write(LPBYTE pbBuf, long lSize = 1);\n long GetReadableSize();\n long GetWriteableSize();\n void Clear();\n\nprivate:\n long GetReadableSize0(); \/\/ GetReadableSize\u306e\u540c\u671f\u51e6\u7406\u306a\u3057\u7248\n long GetWriteableSize0(); \/\/ GetWriteableSize\u306e\u540c\u671f\u306a\u3057\u7248\n\n LPBYTE m_pbData; \/\/ \u30d0\u30c3\u30d5\u30a1\u306e\u5b9f\u4f53\n long m_lMaxSize; \/\/ \u30d0\u30c3\u30d5\u30a1\u306e\u6700\u5927\u30b5\u30a4\u30ba\n long m_lAllocSize; \/\/ \u5b9f\u4f53\u306e\u78ba\u4fdd\u30b5\u30a4\u30ba=\u30d0\u30c3\u30d5\u30a1\u306e\u6700\u5927\u30b5\u30a4\u30ba+1\n long m_lHead; \/\/ \u8aad\u307f\u8fbc\u307f\u958b\u59cb\u4f4d\u7f6e\n long m_lTail; \/\/ \u66f8\u304d\u8fbc\u307f\u958b\u59cb\u4f4d\u7f6e\n CMySyncObject *m_pCMySyncObject; \/\/ \u540c\u671f\u7528\n\npublic:\n BOOL m_fInitialized; \/\/ \u521d\u671f\u5316\u304c\u5b8c\u4e86\u3057\u3066\u3044\u308b\u304b\n};<\/p>\n\n\n\n

<\/p>\n\n\n\n

\u3010RingBuff.cpp\u3011\n#include “RingBuff.h”\n\n\/\/========================================================\n\/\/ Function\n\/\/ \u30af\u30e9\u30b9\u306e\u69cb\u7bc9\u3001\u30d0\u30c3\u30d5\u30a1\u306e\u6700\u5927\u30b5\u30a4\u30ba\u3092\u6307\u5b9a\n\/\/ Parameter\n\/\/ long lMaxSize [in]\u683c\u7d0d\u53ef\u80fd\u306a\u6700\u5927\u30b5\u30a4\u30ba \n\/\/ Return\n\/\/ \u306a\u3057\n\/\/========================================================\nCRingBuff::CRingBuff(long lMaxSize)\n{\n m_fInitialized = FALSE;\n m_pbData = NULL;\n m_lMaxSize = lMaxSize; \/\/ \u30b5\u30a4\u30ba\u3092\u899a\u3048\u308b\n m_lAllocSize = m_lMaxSize + 1; \/\/ \u30e1\u30e2\u30ea\u3092\u78ba\u4fdd\u3059\u308b\u30b5\u30a4\u30ba\n m_lHead = 0; \/\/ \u8aad\u307f\u8fbc\u307f\u958b\u59cb\u4f4d\u7f6e\n m_lTail = 0; \/\/ \u66f8\u304d\u8fbc\u307f\u958b\u59cb\u4f4d\u7f6e\n m_pCMySyncObject = new CMySyncObject();\n m_pCMySyncObject->Initialize();\n\n if (lMaxSize > 0)\n m_pbData = (LPBYTE)calloc(m_lAllocSize, sizeof(BYTE));\n if (m_pbData != NULL)\n m_fInitialized = TRUE; \/\/ \u521d\u671f\u5316\u5b8c\u4e86\n}\n\n\/\/========================================================\n\/\/ Function\n\/\/ \u30af\u30e9\u30b9\u306e\u7834\u68c4\u3001\u30d0\u30c3\u30d5\u30a1\u306e\u958b\u653e\n\/\/ Parameter\n\/\/ \u306a\u3057\n\/\/ Return\n\/\/ \u306a\u3057\n\/\/========================================================\nCRingBuff::~CRingBuff(void)\n{\n SAFE_FREE(m_pbData)\n m_pCMySyncObject->Uninitialize();\n SAFE_DELETE(m_pCMySyncObject)\n m_fInitialized = FALSE;\n}\n\n\/\/========================================================\n\/\/ Function\n\/\/ \u30c7\u30fc\u30bf\u306e\u8aad\u307f\u8fbc\u307f\n\/\/ \u73fe\u5728\u306e\u8aad\u307f\u8fbc\u307f\u958b\u59cb\u4f4d\u7f6e\u304b\u3089\u8aad\u307f\u8fbc\u3080\n\/\/ Parameter\n\/\/ LPBYTE pbBuf [in\/out]\u30d0\u30c3\u30d5\u30a1\n\/\/ long lSize [in]\u30d0\u30c3\u30d5\u30a1\u30b5\u30a4\u30ba\n\/\/ Return\n\/\/ \u5b9f\u969b\u306b\u8aad\u307f\u8fbc\u3093\u3060\u30b5\u30a4\u30ba <= \u30d0\u30c3\u30d5\u30a1\u30b5\u30a4\u30ba\n\/\/========================================================\nlong CRingBuff::Read(LPBYTE pbBuf, long lSize)\n{\n long lReadSize = 0;\n long ii;\n\n \/\/ \u8aad\u307f\u8fbc\u307f\u53ef\u80fd\u30b5\u30a4\u30ba(\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u30c7\u30fc\u30bf\u6570)\u3092\u53d6\u5f97\u3057\n \/\/ \u305d\u308c\u4ee5\u4e0a\u306f\u8aad\u307f\u8fbc\u307e\u306a\u3044\u3088\u3046\u306b\u3059\u308b\n m_pCMySyncObject->Lock();\n lReadSize = min(GetReadableSize0(), lSize);\n\n for (ii = 0; ii < lReadSize; ++ii)\n {\n pbBuf[ii] = m_pbData[m_lHead++]; \/\/ \u8aad\u307f\u8fbc\u307f\u4f4d\u7f6e\u66f4\u65b0\n m_lHead = m_lHead % m_lAllocSize;\n }\n m_pCMySyncObject->UnLock();\n return(lReadSize);\n}\n\n\/\/========================================================\n\/\/ Function\n\/\/ \u30c7\u30fc\u30bf\u306e\u4eee\u8aad\u307f\u8fbc\u307f\n\/\/ \u73fe\u5728\u306e\u8aad\u307f\u8fbc\u307f\u958b\u59cb\u4f4d\u7f6e\u304b\u3089\u8aad\u307f\u8fbc\u3080\n\/\/ \u8aad\u307f\u8fbc\u307f\u4f4d\u7f6e\u306e\u66f4\u65b0\u3092\u3057\u306a\u3044\n\/\/ Parameter\n\/\/ LPBYTE pbBuf [in\/out]\u30d0\u30c3\u30d5\u30a1\n\/\/ long lSize [in]\u30d0\u30c3\u30d5\u30a1\u30b5\u30a4\u30ba\n\/\/ Return\n\/\/ \u5b9f\u969b\u306b\u8aad\u307f\u8fbc\u3093\u3060\u30b5\u30a4\u30ba\n\/\/========================================================\nlong CRingBuff::ReadWithoutUpdateHeadPoint(LPBYTE pbBuf, long lSize)\n{\n long lReadSize = 0;\n long lHead, ii;\n\n \/\/ \u8aad\u307f\u8fbc\u307f\u53ef\u80fd\u30b5\u30a4\u30ba(\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u30c7\u30fc\u30bf\u6570)\u3092\u53d6\u5f97\u3057\n \/\/ \u305d\u308c\u4ee5\u4e0a\u306f\u8aad\u307f\u8fbc\u307e\u306a\u3044\u3088\u3046\u306b\u3059\u308b\n m_pCMySyncObject->Lock();\n lReadSize = min(GetReadableSize0(), lSize);\n\n lHead = m_lHead;\n for (ii = 0; ii < lReadSize; ++ii)\n {\n pbBuf[ii] = m_pbData[lHead++]; \/\/ \u8aad\u307f\u8fbc\u307f\u4f4d\u7f6e\u306f\u66f4\u65b0\u3057\u3066\u3044\u306a\u3044\n lHead = lHead % m_lAllocSize;\n }\n m_pCMySyncObject->UnLock();\n return(lReadSize);\n}\n\n\/\/========================================================\n\/\/ Function\n\/\/ \u8aad\u307f\u8fbc\u307f\u4f4d\u7f6e\u306e\u66f4\u65b0\u3092\u3059\u308b(\u6307\u5b9a\u30d0\u30a4\u30c8\u8aad\u3093\u3060\u3053\u3068\u306b\u3059\u308b)\n\/\/ Parameter\n\/\/ long lSize [in]\u8aad\u3093\u3060\u3053\u3068\u306b\u3059\u308b\u30d0\u30a4\u30c8\u6570\n\/\/ Return\n\/\/ \u306a\u3057\n\/\/========================================================\nvoid CRingBuff::UpdateHeadPoint(long lSize)\n{\n m_pCMySyncObject->Lock();\n m_lHead = (m_lHead + lSize) % m_lAllocSize;\n m_pCMySyncObject->UnLock();\n}\n\n\/\/========================================================\n\/\/ Function\n\/\/ \u30c7\u30fc\u30bf\u306e\u66f8\u304d\u8fbc\u307f\n\/\/ \u73fe\u5728\u306e\u66f8\u304d\u8fbc\u307f\u958b\u59cb\u4f4d\u7f6e\u304b\u3089\u66f8\u304d\u8fbc\u3080\n\/\/ \u3053\u306e\u95a2\u6570\u3092\u547c\u3076\u524d\u306bGetWriteableSize\u3067\u66f8\u304d\u8fbc\u307f\u53ef\u80fd\u30b5\u30a4\u30ba\u3092\u8abf\u3079\u308b\u3053\u3068\n\/\/ Parameter\n\/\/ LPBYTE pbBuf [in]\u30d0\u30c3\u30d5\u30a1\n\/\/ long lSize [in]\u30d0\u30c3\u30d5\u30a1\u30b5\u30a4\u30ba\n\/\/ Return\n\/\/ TRUE:\u66f8\u304d\u8fbc\u307f\u6210\u529f FALSE:\u7a7a\u304d\u4e0d\u8db3\n\/\/========================================================\nBOOL CRingBuff::Write(LPBYTE pbBuf, long lSize)\n{\n BOOL fRet = FALSE;\n long ii;\n\n \/\/ \u66f8\u304d\u8fbc\u307f\u53ef\u80fd\u30b5\u30a4\u30ba(\u30d0\u30c3\u30d5\u30a1\u306e\u7a7a\u304d)\u3092\u53d6\u5f97\u3057\u66f8\u304d\u8fbc\u3081\u308b\u304b\u8abf\u3079\u308b\n m_pCMySyncObject->Lock();\n if(lSize > GetWriteableSize0())\n goto L_END;\n\n for (ii = 0; ii < lSize; ++ii)\n {\n m_pbData[m_lTail++] = pbBuf[ii];\n m_lTail = m_lTail % m_lAllocSize;\n }\n fRet = TRUE;\nL_END:\n m_pCMySyncObject->UnLock();\n return(fRet);\n}\n\n\/\/========================================================\n\/\/ Function\n\/\/ \u8aad\u307f\u8fbc\u307f\u53ef\u80fd\u30b5\u30a4\u30ba(\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u30c7\u30fc\u30bf\u6570)\u306e\u53d6\u5f97\n\/\/ Parameter\n\/\/ \u306a\u3057\n\/\/ Return\n\/\/ \u8aad\u307f\u8fbc\u307f\u53ef\u80fd\u30b5\u30a4\u30ba\n\/\/========================================================\nlong CRingBuff::GetReadableSize()\n{\n long lHead, lTail, lReadable = 0;\n\n m_pCMySyncObject->Lock();\n if (m_pbData == NULL)\n goto L_END;\n\n lHead = m_lHead;\n lTail = m_lTail;\n lReadable = (lHead <= lTail) ? (lTail – lHead) : (m_lAllocSize – lHead) + lTail;\n\nL_END:\n m_pCMySyncObject->UnLock();\n return(lReadable);\n}\n\n\/\/========================================================\n\/\/ Function\n\/\/ \u8aad\u307f\u8fbc\u307f\u53ef\u80fd\u30b5\u30a4\u30ba(\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u30c7\u30fc\u30bf\u6570)\u306e\u53d6\u5f97\n\/\/ \u540c\u671f\u306a\u3057\u7248(\u547c\u3073\u51fa\u3057\u5143Read\u3001ReadWithoutUpdateHeadPoint\u3067\u540c\u671f\u51e6\u7406\u3092\u884c\u3046)\n\/\/ Parameter\n\/\/ \u306a\u3057\n\/\/ Return\n\/\/ \u8aad\u307f\u8fbc\u307f\u53ef\u80fd\u30b5\u30a4\u30ba\n\/\/========================================================\nlong CRingBuff::GetReadableSize0()\n{\n long lHead, lTail, lReadable = 0;\n\n if (m_pbData == NULL)\n goto L_END;\n\n lHead = m_lHead;\n lTail = m_lTail;\n lReadable = (lHead <= lTail) ? (lTail – lHead) : (m_lAllocSize – lHead) + lTail;\n\nL_END:\n return(lReadable);\n}\n\n\/\/========================================================\n\/\/ Function\n\/\/ \u66f8\u304d\u8fbc\u307f\u53ef\u80fd\u30b5\u30a4\u30ba(\u7a7a\u304d\u30b5\u30a4\u30ba)\u306e\u53d6\u5f97\n\/\/ Parameter\n\/\/ \u306a\u3057\n\/\/ Return\n\/\/ \u66f8\u304d\u8fbc\u307f\u53ef\u80fd\u30b5\u30a4\u30ba\n\/\/========================================================\nlong CRingBuff::GetWriteableSize()\n{\n long lHead, lTail, lWritable = 0;\n\n m_pCMySyncObject->Lock();\n if (m_pbData == NULL)\n goto L_END;\n\n lTail = m_lTail;\n lHead = m_lHead;\n lWritable = (lTail < lHead) ? (lHead – lTail) : (m_lAllocSize – lTail) + lHead;\n\n if (lWritable > 0) \/\/ Haed\u3068Tail\u306e\u9593\u306b\u9699\u9593\u3092\u958b\u3051\u308b\u305f\u30811\u30d0\u30a4\u30c8\u6e1b\u3089\u3059\n –lWritable;\nL_END:\n m_pCMySyncObject->UnLock();\n return(lWritable);\n}\n\n\/\/========================================================\n\/\/ Function\n\/\/ \u66f8\u304d\u8fbc\u307f\u53ef\u80fd\u30b5\u30a4\u30ba(\u7a7a\u304d\u30b5\u30a4\u30ba)\u306e\u53d6\u5f97\n\/\/ \u540c\u671f\u306a\u3057\u7248(\u547c\u3073\u51fa\u3057\u5143Write\u3067\u540c\u671f\u3092\u884c\u3046)\n\/\/ Parameter\n\/\/ \u306a\u3057\n\/\/ Return\n\/\/ \u66f8\u304d\u8fbc\u307f\u53ef\u80fd\u30b5\u30a4\u30ba\n\/\/========================================================\nlong CRingBuff::GetWriteableSize0()\n{\n long lHead, lTail, lWritable = 0;\n\n if (m_pbData == NULL)\n goto L_END;\n\n lTail = m_lTail;\n lHead = m_lHead;\n lWritable = (lTail < lHead) ? (lHead – lTail) : (m_lAllocSize – lTail) + lHead;\n\n if (lWritable > 0) \/\/ Haed\u3068Tail\u306e\u9593\u306b\u9699\u9593\u3092\u958b\u3051\u308b\u305f\u30811\u30d0\u30a4\u30c8\u6e1b\u3089\u3059\n –lWritable;\nL_END:\n return(lWritable);\n}\n\n\/\/========================================================\n\/\/ Function\n\/\/ \u66f8\u304d\u8fbc\u307f\u3001\u8aad\u307f\u8fbc\u307f\u30dd\u30a4\u30f3\u30bf\u306e\u521d\u671f\u5316\n\/\/ Parameter\n\/\/ \u306a\u3057\n\/\/ Return\n\/\/ \u306a\u3057\n\/\/========================================================\nvoid CRingBuff::Clear()\n{\n m_pCMySyncObject->Lock();\n m_lTail = 0;\n m_lHead = 0;\n m_pCMySyncObject->UnLock();\n}<\/p>\n\n\n\n

\u5404\u30d0\u30c3\u30d5\u30a1\u3092CRingBuff<\/a>\u3067\u7f6e\u304d\u63db\u3048\u308b\u306e\u3067\u3059\u304c\u3001\u305d\u308c\u306f\u6b21\u56de\u3068\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u524d\u56de\u4f5c\u6210\u3057\u305f\u3001SimpleServerTransFile(Windows\u3001Linux)\u3001 SimpleClientTransFile(Windows\u3001Linux)\u306e\u9001\u4fe1\u30fb\u53d7\u4fe1\u3068\u30d0\u30c3\u30d5\u30a1\u306e\u95a2\u4fc2\u306f\u4e0b\u56f3\u306e\u3088\u3046\u306b \u306a\u3063\u3066\u3044\u307e\u3059\u3002 […]<\/p>\n","protected":false},"author":1,"featured_media":129,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_locale":"ja","_original_post":"https:\/\/www.oji-koji.com\/?p=1698","footnotes":""},"categories":[9],"tags":[],"class_list":["post-1698","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-networkprograming2","ja"],"_links":{"self":[{"href":"https:\/\/www.oji-koji.com\/index.php?rest_route=\/wp\/v2\/posts\/1698","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.oji-koji.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.oji-koji.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.oji-koji.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.oji-koji.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1698"}],"version-history":[{"count":34,"href":"https:\/\/www.oji-koji.com\/index.php?rest_route=\/wp\/v2\/posts\/1698\/revisions"}],"predecessor-version":[{"id":3111,"href":"https:\/\/www.oji-koji.com\/index.php?rest_route=\/wp\/v2\/posts\/1698\/revisions\/3111"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.oji-koji.com\/index.php?rest_route=\/wp\/v2\/media\/129"}],"wp:attachment":[{"href":"https:\/\/www.oji-koji.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1698"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.oji-koji.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1698"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.oji-koji.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1698"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}