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132
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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: Public Domain
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5 * License: Public Domain
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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 module tango.stdc.posix.sys.wait;
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10
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11 public import tango.stdc.posix.sys.types; // for id_t, pid_t
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12 public import tango.stdc.posix.signal; // for siginfo_t (XSI)
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13 //public import tango.stdc.posix.resource; // for rusage (XSI)
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14
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15 extern (C):
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16
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17 //
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18 // Required
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19 //
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20 /*
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21 WNOHANG
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22 WUNTRACED
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23
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24 WEXITSTATUS
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25 WIFCONTINUED
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26 WIFEXITED
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27 WIFSIGNALED
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28 WIFSTOPPED
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29 WSTOPSIG
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30 WTERMSIG
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31
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32 pid_t wait(int*);
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33 pid_t waitpid(pid_t, int*, int);
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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 const WNOHANG = 1;
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39 const WUNTRACED = 2;
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40
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41 private
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42 {
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43 const __W_CONTINUED = 0xFFFF;
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44
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45 extern (D) int __WTERMSIG( int status ) { return status & 0x7F; }
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46 }
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47
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48 //
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49 // NOTE: These macros assume __USE_BSD is not defined in the relevant
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50 // C headers as the parameter definition there is different and
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51 // much more complicated.
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52 //
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53 extern (D) int WEXITSTATUS( int status ) { return ( status & 0xFF00 ) >> 8; }
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54 extern (D) int WIFCONTINUED( int status ) { return status == __W_CONTINUED; }
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55 extern (D) bool WIFEXITED( int status ) { return __WTERMSIG( status ) == 0; }
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56 extern (D) bool WIFSIGNALED( int status )
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57 {
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58 return ( cast(byte) ( ( status & 0x7F ) + 1 ) >> 1 ) > 0;
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59 }
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60 extern (D) bool WIFSTOPPED( int status ) { return ( status & 0xFF ) == 0x7F; }
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61 extern (D) int WSTOPSIG( int status ) { return WEXITSTATUS( status ); }
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62 extern (D) int WTERMSIG( int status ) { return status & 0x7F; }
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63 }
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64 else version( darwin )
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65 {
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66 const WNOHANG = 1;
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67 const WUNTRACED = 2;
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68
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69 private
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70 {
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71 const _WSTOPPED = 0177;
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72 }
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73
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74 extern (D) int _WSTATUS(int status) { return (status & 0177); }
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75 extern (D) int WEXITSTATUS( int status ) { return (status >> 8); }
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76 extern (D) int WIFCONTINUED( int status ) { return status == 0x13; }
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77 extern (D) bool WIFEXITED( int status ) { return _WSTATUS(status) == 0; }
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78 extern (D) bool WIFSIGNALED( int status )
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79 {
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80 return _WSTATUS( status ) != _WSTOPPED && _WSTATUS( status ) != 0;
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81 }
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82 extern (D) bool WIFSTOPPED( int status ) { return _WSTATUS( status ) == _WSTOPPED; }
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83 extern (D) int WSTOPSIG( int status ) { return status >> 8; }
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84 extern (D) int WTERMSIG( int status ) { return _WSTATUS( status ); }
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85 }
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86 else
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87 {
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88 static assert( false );
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89 }
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90
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91 pid_t wait(int*);
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92 pid_t waitpid(pid_t, int*, int);
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93
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94 //
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95 // XOpen (XSI)
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96 //
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97 /*
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98 WEXITED
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99 WSTOPPED
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100 WCONTINUED
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101 WNOHANG
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102 WNOWAIT
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103
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104 enum idtype_t
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105 {
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106 P_ALL,
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107 P_PID,
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108 P_PGID
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109 }
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110
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111 int waitid(idtype_t, id_t, siginfo_t*, int);
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112 */
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