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1 ------------------------------------------------------------------------------
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2 -- --
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3 -- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS --
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4 -- --
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5 -- S Y S T E M . O S _ I N T E R F A C E --
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6 -- --
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7 -- S p e c --
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8 -- --
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9 -- Copyright (C) 1991-1994, Florida State University --
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145
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10 -- Copyright (C) 1995-2019, Free Software Foundation, Inc. --
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111
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11 -- --
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12 -- GNAT is free software; you can redistribute it and/or modify it under --
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13 -- terms of the GNU General Public License as published by the Free Soft- --
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14 -- ware Foundation; either version 3, or (at your option) any later ver- --
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15 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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16 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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17 -- or FITNESS FOR A PARTICULAR PURPOSE. --
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18 -- --
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19 -- As a special exception under Section 7 of GPL version 3, you are granted --
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20 -- additional permissions described in the GCC Runtime Library Exception, --
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21 -- version 3.1, as published by the Free Software Foundation. --
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22 -- --
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23 -- You should have received a copy of the GNU General Public License and --
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24 -- a copy of the GCC Runtime Library Exception along with this program; --
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25 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
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26 -- <http://www.gnu.org/licenses/>. --
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27 -- --
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28 -- GNARL was developed by the GNARL team at Florida State University. It is --
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29 -- now maintained by Ada Core Technologies Inc. in cooperation with Florida --
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30 -- State University (http://www.gnat.com). --
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31 -- --
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32 ------------------------------------------------------------------------------
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33
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34 -- This is the DragonFly BSD PTHREADS version of this package
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35
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36 -- This package encapsulates all direct interfaces to OS services
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37 -- that are needed by the tasking run-time (libgnarl).
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38
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39 -- PLEASE DO NOT add any with-clauses to this package or remove the pragma
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40 -- Preelaborate. This package is designed to be a bottom-level (leaf) package.
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41
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42 with Ada.Unchecked_Conversion;
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43
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44 with Interfaces.C;
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45
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46 package System.OS_Interface is
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47 pragma Preelaborate;
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48
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49 pragma Linker_Options ("-pthread");
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50
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51 subtype int is Interfaces.C.int;
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52 subtype short is Interfaces.C.short;
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53 subtype long is Interfaces.C.long;
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54 subtype unsigned is Interfaces.C.unsigned;
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55 subtype unsigned_short is Interfaces.C.unsigned_short;
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56 subtype unsigned_long is Interfaces.C.unsigned_long;
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57 subtype unsigned_char is Interfaces.C.unsigned_char;
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58 subtype plain_char is Interfaces.C.plain_char;
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59 subtype size_t is Interfaces.C.size_t;
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60
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61 -----------
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62 -- Errno --
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63 -----------
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64
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65 function Errno return int;
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66 pragma Inline (Errno);
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67
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68 EAGAIN : constant := 35;
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69 EINTR : constant := 4;
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70 EINVAL : constant := 22;
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71 ENOMEM : constant := 12;
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72 ETIMEDOUT : constant := 60;
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73
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74 -------------
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75 -- Signals --
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76 -------------
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77
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78 Max_Interrupt : constant := 31;
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79 type Signal is new int range 0 .. Max_Interrupt;
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80 for Signal'Size use int'Size;
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81
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82 SIGHUP : constant := 1; -- hangup
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83 SIGINT : constant := 2; -- interrupt (rubout)
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84 SIGQUIT : constant := 3; -- quit (ASCD FS)
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85 SIGILL : constant := 4; -- illegal instruction (not reset)
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86 SIGTRAP : constant := 5; -- trace trap (not reset)
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87 SIGIOT : constant := 6; -- IOT instruction
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88 SIGABRT : constant := 6; -- used by abort, replace SIGIOT in the future
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89 SIGEMT : constant := 7; -- EMT instruction
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90 SIGFPE : constant := 8; -- floating point exception
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91 SIGKILL : constant := 9; -- kill (cannot be caught or ignored)
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92 SIGBUS : constant := 10; -- bus error
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93 SIGSEGV : constant := 11; -- segmentation violation
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94 SIGSYS : constant := 12; -- bad argument to system call
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95 SIGPIPE : constant := 13; -- write on a pipe with no one to read it
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96 SIGALRM : constant := 14; -- alarm clock
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97 SIGTERM : constant := 15; -- software termination signal from kill
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98 SIGURG : constant := 16; -- urgent condition on IO channel
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99 SIGSTOP : constant := 17; -- stop (cannot be caught or ignored)
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100 SIGTSTP : constant := 18; -- user stop requested from tty
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101 SIGCONT : constant := 19; -- stopped process has been continued
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102 SIGCLD : constant := 20; -- alias for SIGCHLD
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103 SIGCHLD : constant := 20; -- child status change
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104 SIGTTIN : constant := 21; -- background tty read attempted
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105 SIGTTOU : constant := 22; -- background tty write attempted
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106 SIGIO : constant := 23; -- I/O possible (Solaris SIGPOLL alias)
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107 SIGXCPU : constant := 24; -- CPU time limit exceeded
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108 SIGXFSZ : constant := 25; -- filesize limit exceeded
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109 SIGVTALRM : constant := 26; -- virtual timer expired
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110 SIGPROF : constant := 27; -- profiling timer expired
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111 SIGWINCH : constant := 28; -- window size change
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112 SIGINFO : constant := 29; -- information request (BSD)
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113 SIGUSR1 : constant := 30; -- user defined signal 1
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114 SIGUSR2 : constant := 31; -- user defined signal 2
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115
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116 SIGADAABORT : constant := SIGABRT;
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117 -- Change this if you want to use another signal for task abort.
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118 -- SIGTERM might be a good one.
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119
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120 type Signal_Set is array (Natural range <>) of Signal;
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121
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122 -- Interrupts that must be unmasked at all times. DragonFlyBSD
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123 -- pthreads will not allow an application to mask out any
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124 -- interrupt needed by the threads library.
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125 Unmasked : constant Signal_Set :=
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126 (SIGTRAP, SIGBUS, SIGTTIN, SIGTTOU, SIGTSTP);
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127
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128 -- DragonFlyBSD will uses SIGPROF for timing. Do not allow a
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129 -- handler to attach to this signal.
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130 Reserved : constant Signal_Set := (0 .. 0 => SIGPROF);
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131
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132 type sigset_t is private;
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133
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134 function sigaddset
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135 (set : access sigset_t;
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136 sig : Signal) return int;
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137 pragma Import (C, sigaddset, "sigaddset");
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138
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139 function sigdelset
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140 (set : access sigset_t;
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141 sig : Signal) return int;
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142 pragma Import (C, sigdelset, "sigdelset");
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143
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144 function sigfillset (set : access sigset_t) return int;
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145 pragma Import (C, sigfillset, "sigfillset");
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146
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147 function sigismember
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148 (set : access sigset_t;
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149 sig : Signal) return int;
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150 pragma Import (C, sigismember, "sigismember");
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151
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152 function sigemptyset (set : access sigset_t) return int;
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153 pragma Import (C, sigemptyset, "sigemptyset");
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154
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155 -- sigcontext is architecture dependent, so define it private
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156 type struct_sigcontext is private;
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157
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158 type old_struct_sigaction is record
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159 sa_handler : System.Address;
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160 sa_mask : sigset_t;
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161 sa_flags : int;
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162 end record;
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163 pragma Convention (C, old_struct_sigaction);
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164
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165 type new_struct_sigaction is record
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166 sa_handler : System.Address;
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167 sa_flags : int;
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168 sa_mask : sigset_t;
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169 end record;
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170 pragma Convention (C, new_struct_sigaction);
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171
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172 subtype struct_sigaction is new_struct_sigaction;
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173 type struct_sigaction_ptr is access all struct_sigaction;
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174
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175 SIG_BLOCK : constant := 1;
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176 SIG_UNBLOCK : constant := 2;
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177 SIG_SETMASK : constant := 3;
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178
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179 SIG_DFL : constant := 0;
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180 SIG_IGN : constant := 1;
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181
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182 SA_SIGINFO : constant := 16#0040#;
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183 SA_ONSTACK : constant := 16#0001#;
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184
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185 function sigaction
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186 (sig : Signal;
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187 act : struct_sigaction_ptr;
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188 oact : struct_sigaction_ptr) return int;
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189 pragma Import (C, sigaction, "sigaction");
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190
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191 ----------
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192 -- Time --
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193 ----------
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194
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195 Time_Slice_Supported : constant Boolean := True;
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196 -- Indicates whether time slicing is supported (i.e SCHED_RR is supported)
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197
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198 type timespec is private;
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199
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200 function nanosleep (rqtp, rmtp : access timespec) return int;
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201 pragma Import (C, nanosleep, "nanosleep");
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202
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203 type clockid_t is new unsigned_long;
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204
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205 function clock_getres
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206 (clock_id : clockid_t;
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207 res : access timespec) return int;
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208 pragma Import (C, clock_getres, "clock_getres");
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209
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210 function clock_gettime
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211 (clock_id : clockid_t;
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212 tp : access timespec)
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213 return int;
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214 pragma Import (C, clock_gettime, "clock_gettime");
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215
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216 function To_Duration (TS : timespec) return Duration;
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217 pragma Inline (To_Duration);
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218
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219 function To_Timespec (D : Duration) return timespec;
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220 pragma Inline (To_Timespec);
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221
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222 type struct_timezone is record
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223 tz_minuteswest : int;
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224 tz_dsttime : int;
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225 end record;
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226 pragma Convention (C, struct_timezone);
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227
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228 procedure usleep (useconds : unsigned_long);
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229 pragma Import (C, usleep, "usleep");
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230
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231 -------------------------
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232 -- Priority Scheduling --
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233 -------------------------
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234
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235 SCHED_FIFO : constant := 1;
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236 SCHED_OTHER : constant := 2;
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237 SCHED_RR : constant := 3;
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238
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239 function To_Target_Priority
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240 (Prio : System.Any_Priority) return Interfaces.C.int;
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241 -- Maps System.Any_Priority to a POSIX priority
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242
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243 -------------
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244 -- Process --
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245 -------------
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246
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247 type pid_t is private;
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248
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249 function kill (pid : pid_t; sig : Signal) return int;
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250 pragma Import (C, kill, "kill");
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251
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252 function getpid return pid_t;
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253 pragma Import (C, getpid, "getpid");
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254
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255 ---------
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256 -- LWP --
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257 ---------
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258
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259 function lwp_self return System.Address;
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260 -- lwp_self does not exist on this thread library, revert to pthread_self
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261 -- which is the closest approximation (with getpid). This function is
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262 -- needed to share 7staprop.adb across POSIX-like targets.
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263 pragma Import (C, lwp_self, "pthread_self");
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264
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265 -------------
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266 -- Threads --
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267 -------------
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268
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269 type Thread_Body is access
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270 function (arg : System.Address) return System.Address;
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271 pragma Convention (C, Thread_Body);
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272
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273 function Thread_Body_Access is new
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274 Ada.Unchecked_Conversion (System.Address, Thread_Body);
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275
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276 type pthread_t is private;
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277 subtype Thread_Id is pthread_t;
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278
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279 type pthread_mutex_t is limited private;
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280 type pthread_cond_t is limited private;
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281 type pthread_attr_t is limited private;
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282 type pthread_mutexattr_t is limited private;
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283 type pthread_condattr_t is limited private;
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284 type pthread_key_t is private;
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285
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286 PTHREAD_CREATE_DETACHED : constant := 1;
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287 PTHREAD_CREATE_JOINABLE : constant := 0;
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288
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289 PTHREAD_SCOPE_PROCESS : constant := 0;
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290 PTHREAD_SCOPE_SYSTEM : constant := 2;
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291
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292 -- Read/Write lock not supported on DragonFly. To add support both types
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293 -- pthread_rwlock_t and pthread_rwlockattr_t must properly be defined
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294 -- with the associated routines pthread_rwlock_[init/destroy] and
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295 -- pthread_rwlock_[rdlock/wrlock/unlock].
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296
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297 subtype pthread_rwlock_t is pthread_mutex_t;
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298 subtype pthread_rwlockattr_t is pthread_mutexattr_t;
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299
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300 -----------
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301 -- Stack --
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302 -----------
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303
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304 type stack_t is record
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305 ss_sp : System.Address;
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306 ss_size : size_t;
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307 ss_flags : int;
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308 end record;
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309 pragma Convention (C, stack_t);
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310
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311 function sigaltstack
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312 (ss : not null access stack_t;
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313 oss : access stack_t) return int;
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314 pragma Import (C, sigaltstack, "sigaltstack");
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315
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316 Alternate_Stack : aliased System.Address;
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317 -- This is a dummy definition, never used (Alternate_Stack_Size is null)
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318
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319 Alternate_Stack_Size : constant := 0;
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320 -- No alternate signal stack is used on this platform
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321
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322 Stack_Base_Available : constant Boolean := False;
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323 -- Indicates whether the stack base is available on this target. This
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324 -- allows us to share s-osinte.adb between all the FSU run time. Note that
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325 -- this value can only be true if pthread_t has a complete definition that
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326 -- corresponds exactly to the C header files.
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327
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328 function Get_Stack_Base (thread : pthread_t) return Address;
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329 pragma Inline (Get_Stack_Base);
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330 -- returns the stack base of the specified thread. Only call this function
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331 -- when Stack_Base_Available is True.
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332
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333 function Get_Page_Size return int;
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334 pragma Import (C, Get_Page_Size, "getpagesize");
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335 -- Returns the size of a page
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336
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337 PROT_NONE : constant := 0;
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338 PROT_READ : constant := 1;
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339 PROT_WRITE : constant := 2;
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340 PROT_EXEC : constant := 4;
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341 PROT_ALL : constant := PROT_READ + PROT_WRITE + PROT_EXEC;
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342 PROT_ON : constant := PROT_NONE;
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343 PROT_OFF : constant := PROT_ALL;
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344
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345 function mprotect (addr : Address; len : size_t; prot : int) return int;
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346 pragma Import (C, mprotect);
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347
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348 ---------------------------------------
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349 -- Nonstandard Thread Initialization --
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350 ---------------------------------------
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351
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352 -- FSU_THREADS requires pthread_init, which is nonstandard and this should
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353 -- be invoked during the elaboration of s-taprop.adb.
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354
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355 -- DragonFlyBSD does not require this so we provide an empty Ada body
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356
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357 procedure pthread_init;
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358
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359 -------------------------
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360 -- POSIX.1c Section 3 --
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361 -------------------------
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362
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363 function sigwait
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364 (set : access sigset_t;
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365 sig : access Signal) return int;
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366 pragma Import (C, sigwait, "sigwait");
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367
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368 function pthread_kill
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369 (thread : pthread_t;
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370 sig : Signal) return int;
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371 pragma Import (C, pthread_kill, "pthread_kill");
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372
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373 function pthread_sigmask
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374 (how : int;
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375 set : access sigset_t;
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376 oset : access sigset_t) return int;
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377 pragma Import (C, pthread_sigmask, "pthread_sigmask");
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378
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379 --------------------------
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380 -- POSIX.1c Section 11 --
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381 --------------------------
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382
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383 function pthread_mutexattr_init
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384 (attr : access pthread_mutexattr_t) return int;
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385 pragma Import (C, pthread_mutexattr_init, "pthread_mutexattr_init");
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386
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387 function pthread_mutexattr_destroy
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388 (attr : access pthread_mutexattr_t) return int;
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389 pragma Import (C, pthread_mutexattr_destroy, "pthread_mutexattr_destroy");
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390
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391 function pthread_mutex_init
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392 (mutex : access pthread_mutex_t;
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393 attr : access pthread_mutexattr_t) return int;
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394 pragma Import (C, pthread_mutex_init, "pthread_mutex_init");
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395
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396 function pthread_mutex_destroy (mutex : access pthread_mutex_t) return int;
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397 pragma Import (C, pthread_mutex_destroy, "pthread_mutex_destroy");
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398
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399 function pthread_mutex_lock (mutex : access pthread_mutex_t) return int;
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400 pragma Import (C, pthread_mutex_lock, "pthread_mutex_lock");
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401
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402 function pthread_mutex_unlock (mutex : access pthread_mutex_t) return int;
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403 pragma Import (C, pthread_mutex_unlock, "pthread_mutex_unlock");
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404
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405 function pthread_condattr_init
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406 (attr : access pthread_condattr_t) return int;
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407 pragma Import (C, pthread_condattr_init, "pthread_condattr_init");
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408
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409 function pthread_condattr_destroy
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410 (attr : access pthread_condattr_t) return int;
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411 pragma Import (C, pthread_condattr_destroy, "pthread_condattr_destroy");
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412
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413 function pthread_cond_init
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414 (cond : access pthread_cond_t;
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415 attr : access pthread_condattr_t) return int;
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416 pragma Import (C, pthread_cond_init, "pthread_cond_init");
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417
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418 function pthread_cond_destroy (cond : access pthread_cond_t) return int;
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419 pragma Import (C, pthread_cond_destroy, "pthread_cond_destroy");
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420
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421 function pthread_cond_signal (cond : access pthread_cond_t) return int;
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422 pragma Import (C, pthread_cond_signal, "pthread_cond_signal");
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423
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424 function pthread_cond_wait
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425 (cond : access pthread_cond_t;
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426 mutex : access pthread_mutex_t) return int;
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427 pragma Import (C, pthread_cond_wait, "pthread_cond_wait");
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428
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429 function pthread_cond_timedwait
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430 (cond : access pthread_cond_t;
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431 mutex : access pthread_mutex_t;
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432 abstime : access timespec) return int;
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433 pragma Import (C, pthread_cond_timedwait, "pthread_cond_timedwait");
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434
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435 Relative_Timed_Wait : constant Boolean := False;
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436 -- pthread_cond_timedwait requires an absolute delay time
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437
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438 --------------------------
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439 -- POSIX.1c Section 13 --
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440 --------------------------
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441
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442 PTHREAD_PRIO_NONE : constant := 0;
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443 PTHREAD_PRIO_PROTECT : constant := 2;
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444 PTHREAD_PRIO_INHERIT : constant := 1;
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445
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446 function pthread_mutexattr_setprotocol
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447 (attr : access pthread_mutexattr_t;
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448 protocol : int) return int;
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449 pragma Import
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450 (C, pthread_mutexattr_setprotocol, "pthread_mutexattr_setprotocol");
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451
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452 function pthread_mutexattr_getprotocol
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453 (attr : access pthread_mutexattr_t;
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454 protocol : access int) return int;
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455 pragma Import
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456 (C, pthread_mutexattr_getprotocol, "pthread_mutexattr_getprotocol");
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457
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458 function pthread_mutexattr_setprioceiling
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459 (attr : access pthread_mutexattr_t;
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460 prioceiling : int) return int;
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461 pragma Import
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462 (C, pthread_mutexattr_setprioceiling,
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463 "pthread_mutexattr_setprioceiling");
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464
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465 function pthread_mutexattr_getprioceiling
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466 (attr : access pthread_mutexattr_t;
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467 prioceiling : access int) return int;
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468 pragma Import
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469 (C, pthread_mutexattr_getprioceiling,
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470 "pthread_mutexattr_getprioceiling");
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471
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472 type struct_sched_param is record
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473 sched_priority : int;
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474 end record;
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475 pragma Convention (C, struct_sched_param);
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476
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477 function pthread_getschedparam
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478 (thread : pthread_t;
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479 policy : access int;
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480 param : access struct_sched_param) return int;
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481 pragma Import (C, pthread_getschedparam, "pthread_getschedparam");
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482
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483 function pthread_setschedparam
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484 (thread : pthread_t;
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485 policy : int;
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486 param : access struct_sched_param) return int;
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487 pragma Import (C, pthread_setschedparam, "pthread_setschedparam");
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488
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489 function pthread_attr_setscope
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490 (attr : access pthread_attr_t;
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491 contentionscope : int) return int;
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492 pragma Import (C, pthread_attr_setscope, "pthread_attr_setscope");
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493
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494 function pthread_attr_getscope
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495 (attr : access pthread_attr_t;
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496 contentionscope : access int) return int;
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497 pragma Import (C, pthread_attr_getscope, "pthread_attr_getscope");
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498
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499 function pthread_attr_setinheritsched
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500 (attr : access pthread_attr_t;
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501 inheritsched : int) return int;
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502 pragma Import
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503 (C, pthread_attr_setinheritsched, "pthread_attr_setinheritsched");
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504
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505 function pthread_attr_getinheritsched
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506 (attr : access pthread_attr_t;
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507 inheritsched : access int) return int;
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508 pragma Import
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509 (C, pthread_attr_getinheritsched, "pthread_attr_getinheritsched");
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510
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511 function pthread_attr_setschedpolicy
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512 (attr : access pthread_attr_t;
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513 policy : int) return int;
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514 pragma Import (C, pthread_attr_setschedpolicy,
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515 "pthread_attr_setschedpolicy");
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516
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517 function pthread_attr_getschedpolicy
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518 (attr : access pthread_attr_t;
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519 policy : access int) return int;
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520 pragma Import (C, pthread_attr_getschedpolicy,
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521 "pthread_attr_getschedpolicy");
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522
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523 function pthread_attr_setschedparam
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524 (attr : access pthread_attr_t;
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525 sched_param : int) return int;
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526 pragma Import (C, pthread_attr_setschedparam, "pthread_attr_setschedparam");
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527
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528 function pthread_attr_getschedparam
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529 (attr : access pthread_attr_t;
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530 sched_param : access int) return int;
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|
531 pragma Import (C, pthread_attr_getschedparam, "pthread_attr_getschedparam");
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|
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532
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|
|
533 function sched_yield return int;
|
|
|
534 pragma Import (C, sched_yield, "pthread_yield");
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535
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|
536 --------------------------
|
|
|
537 -- P1003.1c Section 16 --
|
|
|
538 --------------------------
|
|
|
539
|
|
|
540 function pthread_attr_init (attributes : access pthread_attr_t) return int;
|
|
|
541 pragma Import (C, pthread_attr_init, "pthread_attr_init");
|
|
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542
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|
543 function pthread_attr_destroy
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544 (attributes : access pthread_attr_t) return int;
|
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|
545 pragma Import (C, pthread_attr_destroy, "pthread_attr_destroy");
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546
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547 function pthread_attr_setdetachstate
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|
|
548 (attr : access pthread_attr_t;
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549 detachstate : int) return int;
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550 pragma Import
|
|
|
551 (C, pthread_attr_setdetachstate, "pthread_attr_setdetachstate");
|
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552
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|
553 function pthread_attr_getdetachstate
|
|
|
554 (attr : access pthread_attr_t;
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555 detachstate : access int) return int;
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|
556 pragma Import
|
|
|
557 (C, pthread_attr_getdetachstate, "pthread_attr_getdetachstate");
|
|
|
558
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|
|
559 function pthread_attr_getstacksize
|
|
|
560 (attr : access pthread_attr_t;
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|
561 stacksize : access size_t) return int;
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|
562 pragma Import
|
|
|
563 (C, pthread_attr_getstacksize, "pthread_attr_getstacksize");
|
|
|
564
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|
|
565 function pthread_attr_setstacksize
|
|
|
566 (attr : access pthread_attr_t;
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|
|
567 stacksize : size_t) return int;
|
|
|
568 pragma Import
|
|
|
569 (C, pthread_attr_setstacksize, "pthread_attr_setstacksize");
|
|
|
570
|
|
|
571 function pthread_create
|
|
|
572 (thread : access pthread_t;
|
|
|
573 attributes : access pthread_attr_t;
|
|
|
574 start_routine : Thread_Body;
|
|
|
575 arg : System.Address) return int;
|
|
|
576 pragma Import (C, pthread_create, "pthread_create");
|
|
|
577
|
|
|
578 function pthread_detach (thread : pthread_t) return int;
|
|
|
579 pragma Import (C, pthread_detach, "pthread_detach");
|
|
|
580
|
|
|
581 procedure pthread_exit (status : System.Address);
|
|
|
582 pragma Import (C, pthread_exit, "pthread_exit");
|
|
|
583
|
|
|
584 function pthread_self return pthread_t;
|
|
|
585 pragma Import (C, pthread_self, "pthread_self");
|
|
|
586
|
|
|
587 --------------------------
|
|
|
588 -- POSIX.1c Section 17 --
|
|
|
589 --------------------------
|
|
|
590
|
|
|
591 function pthread_setspecific
|
|
|
592 (key : pthread_key_t;
|
|
|
593 value : System.Address) return int;
|
|
|
594 pragma Import (C, pthread_setspecific, "pthread_setspecific");
|
|
|
595
|
|
|
596 function pthread_getspecific (key : pthread_key_t) return System.Address;
|
|
|
597 pragma Import (C, pthread_getspecific, "pthread_getspecific");
|
|
|
598
|
|
|
599 type destructor_pointer is access procedure (arg : System.Address);
|
|
|
600 pragma Convention (C, destructor_pointer);
|
|
|
601
|
|
|
602 function pthread_key_create
|
|
|
603 (key : access pthread_key_t;
|
|
|
604 destructor : destructor_pointer) return int;
|
|
|
605 pragma Import (C, pthread_key_create, "pthread_key_create");
|
|
|
606
|
|
|
607 ------------------------------------
|
|
|
608 -- Non-portable Pthread Functions --
|
|
|
609 ------------------------------------
|
|
|
610
|
|
|
611 function pthread_set_name_np
|
|
|
612 (thread : pthread_t;
|
|
|
613 name : System.Address) return int;
|
|
|
614 pragma Import (C, pthread_set_name_np, "pthread_set_name_np");
|
|
|
615
|
|
|
616 private
|
|
|
617
|
|
|
618 type sigset_t is array (1 .. 4) of unsigned;
|
|
|
619
|
|
|
620 -- In DragonFlyBSD the component sa_handler turns out to
|
|
|
621 -- be one a union type, and the selector is a macro:
|
|
|
622 -- #define sa_handler __sigaction_u._handler
|
|
|
623 -- #define sa_sigaction __sigaction_u._sigaction
|
|
|
624
|
|
|
625 -- Should we add a signal_context type here ???
|
|
|
626 -- How could it be done independent of the CPU architecture ???
|
|
|
627 -- sigcontext type is opaque, so it is architecturally neutral.
|
|
|
628 -- It is always passed as an access type, so define it as an empty record
|
|
|
629 -- since the contents are not used anywhere.
|
|
|
630
|
|
|
631 type struct_sigcontext is null record;
|
|
|
632 pragma Convention (C, struct_sigcontext);
|
|
|
633
|
|
|
634 type pid_t is new int;
|
|
|
635
|
|
|
636 type time_t is new long;
|
|
|
637
|
|
|
638 type timespec is record
|
|
|
639 ts_sec : time_t;
|
|
|
640 ts_nsec : long;
|
|
|
641 end record;
|
|
|
642 pragma Convention (C, timespec);
|
|
|
643
|
|
|
644 type pthread_t is new System.Address;
|
|
|
645 type pthread_attr_t is new System.Address;
|
|
|
646 type pthread_mutex_t is new System.Address;
|
|
|
647 type pthread_mutexattr_t is new System.Address;
|
|
|
648 type pthread_cond_t is new System.Address;
|
|
|
649 type pthread_condattr_t is new System.Address;
|
|
|
650 type pthread_key_t is new int;
|
|
|
651
|
|
|
652 end System.OS_Interface;
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