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1 | // Created on: 2013-01-17 |
2 | // Created by: Kirill GAVRILOV |
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3 | // Copyright (c) 2013-2014 OPEN CASCADE SAS |
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4 | // |
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5 | // This file is part of Open CASCADE Technology software library. |
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6 | // |
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7 | // This library is free software; you can redistribute it and/or modify it under |
8 | // the terms of the GNU Lesser General Public License version 2.1 as published |
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9 | // by the Free Software Foundation, with special exception defined in the file |
10 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
11 | // distribution for complete text of the license and disclaimer of any warranty. |
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12 | // |
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13 | // Alternatively, this file may be used under the terms of Open CASCADE |
14 | // commercial license or contractual agreement. |
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15 | |
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16 | #include <Standard_CLocaleSentry.hxx> |
17 | |
18 | #include <Standard_TypeDef.hxx> |
19 | |
20 | #include <cstring> |
21 | |
22 | namespace |
23 | { |
24 | |
25 | //! CLocalePtr - static object representing C locale |
26 | class CLocalePtr |
27 | { |
28 | public: |
29 | |
30 | CLocalePtr() |
31 | #ifdef HAVE_XLOCALE_H |
32 | : myLocale (newlocale (LC_ALL_MASK, "C", NULL)) |
33 | #elif defined(_WIN32) |
34 | : myLocale (_create_locale (LC_ALL, "C")) |
35 | #else |
36 | : myLocale (NULL) |
37 | #endif |
38 | {} |
39 | |
40 | ~CLocalePtr() |
41 | { |
42 | #ifdef HAVE_XLOCALE_H |
43 | freelocale (myLocale); |
44 | #elif defined(_WIN32) |
45 | _free_locale (myLocale); |
46 | #endif |
47 | } |
48 | |
49 | public: |
50 | |
51 | Standard_CLocaleSentry::clocale_t myLocale; |
52 | |
53 | }; |
54 | |
55 | static CLocalePtr theCLocale; |
56 | |
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57 | } |
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58 | |
59 | // ======================================================================= |
60 | // function : GetCLocale |
61 | // purpose : |
62 | // ======================================================================= |
63 | Standard_CLocaleSentry::clocale_t Standard_CLocaleSentry::GetCLocale() |
64 | { |
65 | return theCLocale.myLocale; |
66 | } |
67 | |
68 | // ======================================================================= |
69 | // function : Standard_CLocaleSentry |
70 | // purpose : |
71 | // ======================================================================= |
72 | Standard_CLocaleSentry::Standard_CLocaleSentry() |
73 | #ifdef HAVE_XLOCALE_H |
74 | : myPrevLocale (uselocale (theCLocale.myLocale)) // switch to C locale within this thread only using xlocale API |
75 | #else |
76 | : myPrevLocale (setlocale (LC_ALL, 0)) |
77 | #if defined(_MSC_VER) && (_MSC_VER > 1400) |
78 | , myPrevTLocaleState (_configthreadlocale (_ENABLE_PER_THREAD_LOCALE)) |
79 | #endif |
80 | #endif |
81 | { |
82 | #ifndef HAVE_XLOCALE_H |
83 | const char* aPrevLocale = (const char* )myPrevLocale; |
84 | if (aPrevLocale[0] == 'C' && aPrevLocale[1] == '\0') |
85 | { |
86 | myPrevLocale = NULL; // already C locale |
87 | return; |
88 | } |
89 | // copy string as following setlocale calls may invalidate returned pointer |
90 | Standard_Size aLen = std::strlen (aPrevLocale) + 1; |
91 | myPrevLocale = new char[aLen]; |
92 | memcpy (myPrevLocale, aPrevLocale, aLen); |
93 | |
94 | setlocale (LC_ALL, "C"); |
95 | #endif |
96 | } |
97 | |
98 | // ======================================================================= |
99 | // function : ~Standard_CLocaleSentry |
100 | // purpose : |
101 | // ======================================================================= |
102 | Standard_CLocaleSentry::~Standard_CLocaleSentry() |
103 | { |
104 | #ifdef HAVE_XLOCALE_H |
105 | uselocale ((locale_t )myPrevLocale); |
106 | #else |
107 | if (myPrevLocale != NULL) |
108 | { |
109 | const char* aPrevLocale = (const char* )myPrevLocale; |
110 | setlocale (LC_ALL, aPrevLocale); |
111 | delete[] aPrevLocale; |
112 | } |
113 | #if defined(_MSC_VER) && (_MSC_VER > 1400) |
114 | if (myPrevTLocaleState != _ENABLE_PER_THREAD_LOCALE) |
115 | { |
116 | _configthreadlocale (myPrevTLocaleState); |
117 | } |
118 | #endif |
119 | #endif |
120 | } |