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annotate druntime/import/core/sys/posix/ucontext.d @ 1458:e0b2d67cfe7c

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Added druntime (this should be removed once it works).
author Robert Clipsham <robert@octarineparrot.com>
date Tue, 02 Jun 2009 17:43:06 +0100
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1458
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1 /**
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2 * D header file for POSIX.
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3 *
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4 * Copyright: Copyright Sean Kelly 2005 - 2009.
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5 * License: <a href="http://www.boost.org/LICENSE_1_0.txt>Boost License 1.0</a>.
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6 * Authors: Sean Kelly
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7 * Standards: The Open Group Base Specifications Issue 6, IEEE Std 1003.1, 2004 Edition
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8 *
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9 * Copyright Sean Kelly 2005 - 2009.
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10 * Distributed under the Boost Software License, Version 1.0.
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11 * (See accompanying file LICENSE_1_0.txt or copy at
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12 * http://www.boost.org/LICENSE_1_0.txt)
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13 */
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14 module core.sys.posix.ucontext;
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15
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16 private import core.sys.posix.config;
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17 public import core.sys.posix.signal; // for sigset_t, stack_t
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18
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19 extern (C):
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20
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21 //
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22 // XOpen (XSI)
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23 //
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24 /*
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25 mcontext_t
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26
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27 struct ucontext_t
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28 {
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29 ucontext_t* uc_link;
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30 sigset_t uc_sigmask;
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31 stack_t uc_stack;
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32 mcontext_t uc_mcontext;
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33 }
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34 */
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35
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36 version( linux )
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37 {
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38
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39 version( X86_64 )
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40 {
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41 private
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42 {
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43 struct _libc_fpxreg
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44 {
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45 ushort[4] significand;
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46 ushort exponent;
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47 ushort[3] padding;
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48 }
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49
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50 struct _libc_xmmreg
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51 {
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52 uint[4] element;
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53 }
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54
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55 struct _libc_fpstate
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56 {
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57 ushort cwd;
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58 ushort swd;
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59 ushort ftw;
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60 ushort fop;
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61 ulong rip;
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62 ulong rdp;
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63 uint mxcsr;
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64 uint mxcr_mask;
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65 _libc_fpxreg[8] _st;
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66 _libc_xmmreg[16] _xmm;
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67 uint[24] padding;
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68 }
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69
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70 enum NGREG = 23;
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71
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72 alias c_long greg_t;
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73 alias greg_t[NGREG] gregset_t;
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74 alias _libc_fpstate* fpregset_t;
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75 }
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76
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77 struct mcontext_t
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78 {
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79 gregset_t gregs;
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80 fpregset_t fpregs;
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81 c_ulong[8] __reserved1;
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82 }
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83
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84 struct ucontext_t
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85 {
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86 c_ulong uc_flags;
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87 ucontext_t* uc_link;
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88 stack_t uc_stack;
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89 mcontext_t uc_mcontext;
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90 sigset_t uc_sigmask;
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91 _libc_fpstate __fpregs_mem;
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92 }
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93 }
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94 else version( X86 )
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95 {
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96 private
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97 {
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98 struct _libc_fpreg
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99 {
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100 ushort[4] significand;
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101 ushort exponent;
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102 }
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103
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104 struct _libc_fpstate
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105 {
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106 c_ulong cw;
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107 c_ulong sw;
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108 c_ulong tag;
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109 c_ulong ipoff;
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110 c_ulong cssel;
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111 c_ulong dataoff;
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112 c_ulong datasel;
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113 _libc_fpreg[8] _st;
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114 c_ulong status;
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115 }
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116
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117 enum NGREG = 19;
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118
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119 alias int greg_t;
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120 alias greg_t[NGREG] gregset_t;
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121 alias _libc_fpstate* fpregset_t;
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122 }
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123
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124 struct mcontext_t
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125 {
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126 gregset_t gregs;
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127 fpregset_t fpregs;
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128 c_ulong oldmask;
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129 c_ulong cr2;
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130 }
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131
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132 struct ucontext_t
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133 {
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134 c_ulong uc_flags;
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135 ucontext_t* uc_link;
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136 stack_t uc_stack;
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137 mcontext_t uc_mcontext;
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138 sigset_t uc_sigmask;
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139 _libc_fpstate __fpregs_mem;
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140 }
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141 }
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142 }
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143
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144 //
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145 // Obsolescent (OB)
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146 //
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147 /*
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148 int getcontext(ucontext_t*);
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149 void makecontext(ucontext_t*, void function(), int, ...);
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150 int setcontext(in ucontext_t*);
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151 int swapcontext(ucontext_t*, in ucontext_t*);
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152 */
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153
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154 static if( is( ucontext_t ) )
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155 {
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156 int getcontext(ucontext_t*);
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157 void makecontext(ucontext_t*, void function(), int, ...);
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158 int setcontext(in ucontext_t*);
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159 int swapcontext(ucontext_t*, in ucontext_t*);
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160 }