1 ------------------------------------------------------------------------------
3 -- GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS --
5 -- S Y S T E M . O S _ I N T E R F A C E --
10 -- Copyright (C) 1999-2001 Free Software Foundation, Inc. --
12 -- GNARL is free software; you can redistribute it and/or modify it under --
13 -- terms of the GNU General Public License as published by the Free Soft- --
14 -- ware Foundation; either version 2, or (at your option) any later ver- --
15 -- sion. GNARL is distributed in the hope that it will be useful, but WITH- --
16 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
17 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
18 -- for more details. You should have received a copy of the GNU General --
19 -- Public License distributed with GNARL; see file COPYING. If not, write --
20 -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
21 -- MA 02111-1307, USA. --
23 -- As a special exception, if other files instantiate generics from this --
24 -- unit, or you link this unit with other files to produce an executable, --
25 -- this unit does not by itself cause the resulting executable to be --
26 -- covered by the GNU General Public License. This exception does not --
27 -- however invalidate any other reasons why the executable file might be --
28 -- covered by the GNU Public License. --
30 -- GNARL was developed by the GNARL team at Florida State University. --
31 -- Extensive contributions were provided by Ada Core Technologies Inc. --
33 ------------------------------------------------------------------------------
35 -- This is a UnixWare (Native) version of this package
38 -- Turn off polling, we do not want ATC polling to take place during
39 -- tasking operations. It causes infinite loops and other problems.
43 package body System
.OS_Interface
is
51 function To_Duration
(TS
: timespec
) return Duration is
53 return Duration (TS
.tv_sec
) + Duration (TS
.tv_nsec
) / 10#
1#E9
;
56 function To_Duration
(TV
: struct_timeval
) return Duration is
58 return Duration (TV
.tv_sec
) + Duration (TV
.tv_usec
) / 10#
1#E6
;
65 function To_Timespec
(D
: Duration) return timespec
is
70 S
:= time_t
(Long_Long_Integer (D
));
71 F
:= D
- Duration (S
);
73 -- If F has negative value due to a round-up, adjust for positive F
81 return timespec
' (tv_sec => S,
82 tv_nsec => long (Long_Long_Integer (F * 10#1#E9)));
89 function To_Timeval (D : Duration) return struct_timeval is
94 S := long (Long_Long_Integer (D));
95 F := D - Duration (S);
97 -- If F has negative value due to a round-up, adjust for positive F
105 return struct_timeval' (tv_sec
=> S
,
106 tv_usec
=> long
(Long_Long_Integer (F
* 10#
1#E6
)));
113 function clock_gettime
114 (clock_id
: clockid_t
;
115 tp
: access timespec
) return int
118 tv
: aliased struct_timeval
;
120 function gettimeofday
121 (tv
: access struct_timeval
;
122 tz
: System
.Address
:= System
.Null_Address
) return int
;
123 pragma Import
(C
, gettimeofday
, "gettimeofday");
126 Result
:= gettimeofday
(tv
'Unchecked_Access);
127 tp
.all := To_Timespec
(To_Duration
(tv
));
131 ---------------------------
132 -- POSIX.1c Section 3 --
133 ---------------------------
135 function sigwait
(set
: access sigset_t
; sig
: access Signal
) return int
is
138 function sigwait
(set
: access sigset_t
) return int
;
139 pragma Import
(C
, sigwait
, "sigwait");
142 Result
:= sigwait
(set
);
149 sig
.all := Signal
(Result
);
153 function pthread_kill
(thread
: pthread_t
; sig
: Signal
) return int
is
154 function pthread_kill_base
155 (thread
: access pthread_t
; sig
: access Signal
) return int
;
156 pragma Import
(C
, pthread_kill_base
, "pthread_kill");
158 thr
: aliased pthread_t
:= thread
;
159 signo
: aliased Signal
:= sig
;
162 return pthread_kill_base
(thr
'Unchecked_Access, signo
'Unchecked_Access);
165 function Get_Stack_Base
(thread
: pthread_t
) return Address
is
170 procedure pthread_init
is
175 end System
.OS_Interface
;