Delta Between Two Patch Sets: src/plugin/PluginChecksum.cpp
Issue 11013110:
Cleanup (Closed)
Left Patch Set: SetPref/GetPref type safety. Comments addressed.
Created July 22, 2013, 12:42 a.m.
Right Patch Set: More beautification and addressing comments
Created July 29, 2013, 12:13 p.m.
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| Right: |
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|---|---|
| (no file at all) | |
| 1 #include "PluginStdAfx.h" | |
| 2 | |
| 3 #include "PluginChecksum.h" | |
| 4 #include "PluginClient.h" | |
| 5 | |
| 6 | |
| 7 CPluginChecksum::CPluginChecksum() | |
| 8 { | |
| 9 Clear(); | |
| 10 } | |
| 11 | |
| 12 | |
| 13 CPluginChecksum::~CPluginChecksum() | |
| 14 { | |
| 15 } | |
| 16 | |
| 17 | |
| 18 void CPluginChecksum::Clear() | |
| 19 { | |
| 20 m_sum = 0; | |
| 21 m_r = 55665; | |
| 22 m_c1 = 52845; | |
| 23 m_c2 = 22719; | |
| 24 } | |
| 25 | |
| 26 | |
| 27 DWORD CPluginChecksum::Get() const | |
| 28 { | |
| 29 return m_sum; | |
| 30 } | |
| 31 | |
| 32 | |
| 33 CString CPluginChecksum::GetAsString() const | |
| 34 { | |
| 35 CString checksum; | |
| 36 | |
| 37 checksum.Format(L"%lu", Get()); | |
| 38 | |
| 39 return checksum; | |
| 40 } | |
| 41 | |
| 42 | |
| 43 void CPluginChecksum::Add(BYTE value) | |
| 44 { | |
| 45 if (value) | |
| 46 { | |
| 47 BYTE cipher = (value ^ (m_r >> 8)); | |
| 48 m_r = (cipher + m_r) * m_c1 + m_c2; | |
| 49 m_sum += cipher; | |
| 50 } | |
| 51 } | |
| 52 | |
| 53 | |
| 54 void CPluginChecksum::Add(const CStringA& s) | |
| 55 { | |
| 56 for (int i = 0; i < s.GetLength(); i++) | |
| 57 { | |
| 58 Add((BYTE)s.GetAt(i)); | |
| 59 } | |
| 60 | |
| 61 #ifdef ENABLE_DEBUG_CHECKSUM | |
| 62 CStringA sum; | |
| 63 sum.Format("%d", m_sum); | |
| 64 | |
| 65 DEBUG_CHECKSUM("Checksum::AddString " + s + " sum:" + sum) | |
| 66 #endif | |
| 67 } | |
| 68 | |
| 69 void CPluginChecksum::Add(const CStringW& s) | |
| 70 { | |
| 71 for (int i = 0; i < s.GetLength(); i++) | |
| 72 { | |
| 73 WORD value = (WORD)s.GetAt(i); | |
| 74 | |
| 75 Add(LOBYTE(value)); | |
| 76 Add(HIBYTE(value)); | |
| 77 } | |
| 78 | |
| 79 #ifdef ENABLE_DEBUG_CHECKSUM | |
| 80 CStringA sum; | |
| 81 sum.Format("%d", m_sum); | |
| 82 | |
| 83 DEBUG_CHECKSUM("Checksum::AddString " + s + " sum:" + sum) | |
| 84 #endif | |
| 85 } | |
| 86 | |
| 87 void CPluginChecksum::Add(const CStringA& s1, const CStringA& s2) | |
| 88 { | |
| 89 if (!s1.IsEmpty() && !s2.IsEmpty()) | |
| 90 { | |
| 91 Add(s1); | |
| 92 Add(s2); | |
| 93 } | |
| 94 } | |
| 95 | |
| 96 void CPluginChecksum::Add(const CStringW& s1, const CStringW& s2) | |
| 97 { | |
| 98 if (!s1.IsEmpty() && !s2.IsEmpty()) | |
| 99 { | |
| 100 Add(s1); | |
| 101 Add(s2); | |
| 102 } | |
| 103 } | |
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