diff options
| author | Kirill Volinsky <mataes2007@gmail.com> | 2012-10-13 08:54:34 +0000 |
|---|---|---|
| committer | Kirill Volinsky <mataes2007@gmail.com> | 2012-10-13 08:54:34 +0000 |
| commit | de6eb3e4bc30eff928dc932c03812ede3077926a (patch) | |
| tree | 966a57948af890b1c47699e5ec0db23a26a7add9 /protocols/MRA/src/Sdk/MemoryFindByte.h | |
| parent | 870d3d99c22c77a94a352ad292ed67e8eb81edf0 (diff) | |
MRA: folders restructurization
git-svn-id: http://svn.miranda-ng.org/main/trunk@1900 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
Diffstat (limited to 'protocols/MRA/src/Sdk/MemoryFindByte.h')
| -rw-r--r-- | protocols/MRA/src/Sdk/MemoryFindByte.h | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/protocols/MRA/src/Sdk/MemoryFindByte.h b/protocols/MRA/src/Sdk/MemoryFindByte.h new file mode 100644 index 0000000000..a18a721b9d --- /dev/null +++ b/protocols/MRA/src/Sdk/MemoryFindByte.h @@ -0,0 +1,97 @@ +/*
+ * Copyright (c) 2003 Rozhuk Ivan <rozhuk.im@gmail.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */ +
+
+
+#if !defined(AFX_MEMORYFINDBYTE__H__INCLUDED_)
+#define AFX_MEMORYFINDBYTE__H__INCLUDED_
+
+#if _MSC_VER > 1000
+#pragma once
+#endif // _MSC_VER > 1000
+
+
+
+__inline void *MemoryFindByte(size_t dwFrom,const void *pBuff,size_t dwBuffSize,unsigned char chWhatFind)
+{
+ void *pRet=NULL;
+
+ if (pBuff && dwBuffSize && dwFrom<dwBuffSize)
+ {
+ pRet=(void*)memchr((const void*)(((size_t)pBuff)+dwFrom),chWhatFind,(dwBuffSize-dwFrom));
+ }
+return(pRet);
+}
+
+
+#ifndef _WIN64
+__inline void *MemoryFindByteReverse(size_t dwFrom,const void *pBuff,size_t dwBuffSize,unsigned char chWhatFind)
+{
+ void *pRet=NULL;
+
+ __asm
+ {
+ push ebx // сохраняем регистр
+ push edi // сохраняем регистр
+ push esi // сохраняем регистр
+
+ mov ecx,dwBuffSize
+ test ecx,ecx //; проверка входного параметра, он !=0
+ je short end_func
+
+ mov edi,pBuff //; di = string
+ test edi,edi //; проверка входного параметра, он !=0
+ jz short end_func
+
+ mov eax,dwFrom
+
+/////////////////////////////////////////////
+ cmp eax,ecx //; проверка ecx(=len)=>dwFrom
+ jae short end_func
+
+ std //; count 'up' on string this time
+ sub ecx,eax //; уменьшаем длинну на dwFrom(нач смещен)
+ add edi,ecx //; сдвигаем начало на dwSourceSize(на конец)
+ mov al,chWhatFind //; al=search byte
+ repne scasb //; find that byte
+ inc edi //; di points to byte which stopped scan
+ cmp [edi],al //; see if we have a hit
+ jne short end_func //; yes, point to byte
+ mov pRet,edi //; ax=pointer to byte
+ end_func:
+
+ cld
+ pop esi // восстанавливаем содержимое регистра
+ pop edi // восстанавливаем содержимое регистра
+ pop ebx // восстанавливаем содержимое регистра
+ }
+return(pRet);
+}
+#endif
+
+
+#endif // !defined(AFX_MEMORYFINDBYTE__H__INCLUDED_)
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