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annotate packages/language/c/libc/stdio/current/include/stdiofiles.inl @ 115:6ed91473a1cd ecos-sw-2000-08-21

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Merge from eCos master repository on 2000-08-21-22:40:54-BST
author jlarmour
date Fri, 25 Aug 2000 17:32:38 +0000
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1 #ifndef CYGONCE_LIBC_STDIO_STDIOFILES_INL
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2 #define CYGONCE_LIBC_STDIO_STDIOFILES_INL
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3 //========================================================================
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4 //
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5 // stdiofiles.inl
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6 //
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7 // ISO C library stdio central file inlines
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8 //
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9 //========================================================================
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10 //####COPYRIGHTBEGIN####
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11 //
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12 // -------------------------------------------
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13 // The contents of this file are subject to the Red Hat eCos Public License
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14 // Version 1.1 (the "License"); you may not use this file except in
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15 // compliance with the License. You may obtain a copy of the License at
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16 // http://www.redhat.com/
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17 //
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18 // Software distributed under the License is distributed on an "AS IS"
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19 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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20 // License for the specific language governing rights and limitations under
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21 // the License.
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22 //
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23 // The Original Code is eCos - Embedded Configurable Operating System,
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24 // released September 30, 1998.
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25 //
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26 // The Initial Developer of the Original Code is Red Hat.
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27 // Portions created by Red Hat are
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28 // Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
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29 // All Rights Reserved.
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30 // -------------------------------------------
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31 //
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32 //####COPYRIGHTEND####
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33 //========================================================================
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34 //#####DESCRIPTIONBEGIN####
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35 //
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36 // Author(s): jlarmour
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37 // Contributors:
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38 // Date: 2000-04-19
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39 // Purpose:
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40 // Description:
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41 // Usage: Do not include this file directly. Instead use:
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42 // #include <cyg/libc/stdio/stdiofiles.hxx>
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43 //
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44 //####DESCRIPTIONEND####
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45 //
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46 //========================================================================
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47
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48 // CONFIGURATION
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49
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50 #include <pkgconf/libc_stdio.h> // libc stdio configuration
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51
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52 // INCLUDES
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53
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54 #include <cyg/infra/cyg_type.h> // cyg_bool
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55 #include <cyg/infra/cyg_ass.h> // Assert interface
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56 #include <cyg/libc/stdio/stdiofiles.hxx> // header for this file
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57 #include <cyg/libc/stdio/stream.hxx> // Cyg_StdioStream
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58
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59 #ifdef CYGSEM_LIBC_STDIO_THREAD_SAFE_STREAMS
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60 # include <cyg/kernel/mutex.hxx> // mutexes
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61 #endif
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62
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63 // INLINE METHODS
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64
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65 inline Cyg_StdioStream *
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66 Cyg_libc_stdio_files::get_file_stream( fd_t fd )
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67 {
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68 CYG_PRECONDITION( (fd < FOPEN_MAX),
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69 "Attempt to open larger file descriptor than FOPEN_MAX!" );
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70
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71 return files[fd];
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72
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73 } // Cyg_libc_stdio_files::get_file_stream()
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74
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75 inline void
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76 Cyg_libc_stdio_files::set_file_stream( fd_t fd, Cyg_StdioStream *stream )
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77 {
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78 CYG_PRECONDITION( (fd < FOPEN_MAX),
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79 "Attempt to set larger file descriptor than FOPEN_MAX!" );
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80
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81 files[fd] = stream;
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82
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83 } // Cyg_libc_stdio_files::set_file_stream()
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84
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85
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86 inline cyg_bool
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87 Cyg_libc_stdio_files::lock(void)
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88 {
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89 # ifdef CYGSEM_LIBC_STDIO_THREAD_SAFE_STREAMS
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90 return files_lock.lock();
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91 # else
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92 return true;
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93 # endif
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94 } // Cyg_libc_stdio_files::lock()
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95
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96 inline cyg_bool
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97 Cyg_libc_stdio_files::trylock(void)
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98 {
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99 # ifdef CYGSEM_LIBC_STDIO_THREAD_SAFE_STREAMS
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100 return files_lock.trylock();
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101 # else
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102 return true;
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103 # endif
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104 } // Cyg_libc_stdio_files::trylock()
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105
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106 inline void
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107 Cyg_libc_stdio_files::unlock(void)
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108 {
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109 # ifdef CYGSEM_LIBC_STDIO_THREAD_SAFE_STREAMS
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110 files_lock.unlock();
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111 # endif
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112 } // Cyg_libc_stdio_files::unlock()
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113
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114
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115 #endif // CYGONCE_LIBC_STDIO_STDIOFILES_INL multiple inclusion protection
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116
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117 // EOF stdiofiles.inl