801 lines
29 KiB
Ada
801 lines
29 KiB
Ada
------------------------------------------------------------------------------
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-- --
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-- GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS --
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-- --
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-- S Y S T E M . O S _ I N T E R F A C E --
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-- --
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-- S p e c --
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-- --
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-- Copyright (C) 1991-1994, Florida State University --
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-- Copyright (C) 1995-2020, Free Software Foundation, Inc. --
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-- --
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-- GNAT is free software; you can redistribute it and/or modify it under --
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-- terms of the GNU General Public License as published by the Free Soft- --
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-- ware Foundation; either version 3, or (at your option) any later ver- --
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-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE. --
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-- --
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-- As a special exception under Section 7 of GPL version 3, you are granted --
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-- additional permissions described in the GCC Runtime Library Exception, --
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-- version 3.1, as published by the Free Software Foundation. --
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-- --
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-- You should have received a copy of the GNU General Public License and --
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-- a copy of the GCC Runtime Library Exception along with this program; --
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-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
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-- <http://www.gnu.org/licenses/>. --
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-- --
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-- GNARL was developed by the GNARL team at Florida State University. --
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-- Extensive contributions were provided by Ada Core Technologies, Inc. --
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-- --
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------------------------------------------------------------------------------
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-- This is the GNU/Hurd (POSIX Threads) version of this package
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-- This package encapsulates all direct interfaces to OS services
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-- that are needed by children of System.
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-- PLEASE DO NOT add any with-clauses to this package or remove the pragma
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-- Preelaborate. This package is designed to be a bottom-level (leaf) package
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with Interfaces.C;
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with Unchecked_Conversion;
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package System.OS_Interface is
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pragma Preelaborate;
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pragma Linker_Options ("-lpthread");
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pragma Linker_Options ("-lrt");
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subtype int is Interfaces.C.int;
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subtype char is Interfaces.C.char;
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subtype short is Interfaces.C.short;
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subtype long is Interfaces.C.long;
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subtype unsigned is Interfaces.C.unsigned;
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subtype unsigned_short is Interfaces.C.unsigned_short;
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subtype unsigned_long is Interfaces.C.unsigned_long;
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subtype unsigned_char is Interfaces.C.unsigned_char;
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subtype plain_char is Interfaces.C.plain_char;
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subtype size_t is Interfaces.C.size_t;
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-----------
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-- Errno --
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-----------
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-- From /usr/include/i386-gnu/bits/errno.h
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function errno return int;
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pragma Import (C, errno, "__get_errno");
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EAGAIN : constant := 1073741859;
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EINTR : constant := 1073741828;
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EINVAL : constant := 1073741846;
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ENOMEM : constant := 1073741836;
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EPERM : constant := 1073741825;
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ETIMEDOUT : constant := 1073741884;
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-------------
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-- Signals --
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-------------
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-- From /usr/include/i386-gnu/bits/signum.h
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Max_Interrupt : constant := 32;
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type Signal is new int range 0 .. Max_Interrupt;
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for Signal'Size use int'Size;
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SIGHUP : constant := 1; -- hangup
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SIGINT : constant := 2; -- interrupt (rubout)
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SIGQUIT : constant := 3; -- quit (ASCD FS)
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SIGILL : constant := 4; -- illegal instruction (not reset)
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SIGTRAP : constant := 5; -- trace trap (not reset)
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SIGIOT : constant := 6; -- IOT instruction
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SIGABRT : constant := 6; -- used by abort, replace SIGIOT in the future
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SIGEMT : constant := 7; -- EMT instruction
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SIGFPE : constant := 8; -- floating point exception
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SIGKILL : constant := 9; -- kill (cannot be caught or ignored)
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SIGBUS : constant := 10; -- bus error
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SIGSEGV : constant := 11; -- segmentation violation
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SIGSYS : constant := 12; -- bad argument to system call
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SIGPIPE : constant := 13; -- write on a pipe with no one to read it
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SIGALRM : constant := 14; -- alarm clock
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SIGTERM : constant := 15; -- software termination signal from kill
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SIGURG : constant := 16; -- urgent condition on IO channel
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SIGSTOP : constant := 17; -- stop (cannot be caught or ignored)
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SIGTSTP : constant := 18; -- user stop requested from tty
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SIGCONT : constant := 19; -- stopped process has been continued
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SIGCLD : constant := 20; -- alias for SIGCHLD
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SIGCHLD : constant := 20; -- child status change
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SIGTTIN : constant := 21; -- background tty read attempted
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SIGTTOU : constant := 22; -- background tty write attempted
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SIGIO : constant := 23; -- I/O possible (Solaris SIGPOLL alias)
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SIGPOLL : constant := 23; -- I/O possible (same as SIGIO?)
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SIGXCPU : constant := 24; -- CPU time limit exceeded
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SIGXFSZ : constant := 25; -- filesize limit exceeded
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SIGVTALRM : constant := 26; -- virtual timer expired
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SIGPROF : constant := 27; -- profiling timer expired
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SIGWINCH : constant := 28; -- window size change
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SIGINFO : constant := 29; -- information request (NetBSD/FreeBSD)
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SIGUSR1 : constant := 30; -- user defined signal 1
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SIGUSR2 : constant := 31; -- user defined signal 2
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SIGLOST : constant := 32; -- Resource lost (Sun); server died (GNU)
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SIGADAABORT : constant := SIGABRT;
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-- Change this if you want to use another signal for task abort.
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-- SIGTERM might be a good one.
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type Signal_Set is array (Natural range <>) of Signal;
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Unmasked : constant Signal_Set := (
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SIGTRAP,
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-- To enable debugging on multithreaded applications, mark SIGTRAP to
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-- be kept unmasked.
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SIGBUS,
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SIGTTIN, SIGTTOU, SIGTSTP,
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-- Keep these three signals unmasked so that background processes
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-- and IO behaves as normal "C" applications
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SIGPROF,
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-- To avoid confusing the profiler
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SIGKILL, SIGSTOP);
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-- These two signals actually cannot be masked;
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-- POSIX simply won't allow it.
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Reserved : constant Signal_Set :=
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-- I am not sure why the following signal is reserved.
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-- I guess they are not supported by this version of GNU/Hurd.
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(0 .. 0 => SIGVTALRM);
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type sigset_t is private;
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-- From /usr/include/signal.h /usr/include/i386-gnu/bits/sigset.h
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function sigaddset (set : access sigset_t; sig : Signal) return int;
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pragma Import (C, sigaddset, "sigaddset");
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function sigdelset (set : access sigset_t; sig : Signal) return int;
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pragma Import (C, sigdelset, "sigdelset");
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function sigfillset (set : access sigset_t) return int;
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pragma Import (C, sigfillset, "sigfillset");
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function sigismember (set : access sigset_t; sig : Signal) return int;
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pragma Import (C, sigismember, "sigismember");
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function sigemptyset (set : access sigset_t) return int;
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pragma Import (C, sigemptyset, "sigemptyset");
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-- sigcontext is architecture dependent, so define it private
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type struct_sigcontext is private;
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-- From /usr/include/i386-gnu/bits/sigaction.h: Note: arg. order differs
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type struct_sigaction is record
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sa_handler : System.Address;
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sa_mask : sigset_t;
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sa_flags : int;
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end record;
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pragma Convention (C, struct_sigaction);
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type struct_sigaction_ptr is access all struct_sigaction;
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-- From /usr/include/i386-gnu/bits/sigaction.h
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SIG_BLOCK : constant := 1;
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SIG_UNBLOCK : constant := 2;
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SIG_SETMASK : constant := 3;
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-- From /usr/include/i386-gnu/bits/signum.h
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SIG_ERR : constant := 1;
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SIG_DFL : constant := 0;
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SIG_IGN : constant := 1;
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SIG_HOLD : constant := 2;
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-- From /usr/include/i386-gnu/bits/sigaction.h
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SA_SIGINFO : constant := 16#0040#;
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SA_ONSTACK : constant := 16#0001#;
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function sigaction
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(sig : Signal;
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act : struct_sigaction_ptr;
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oact : struct_sigaction_ptr) return int;
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pragma Import (C, sigaction, "sigaction");
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----------
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-- Time --
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----------
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Time_Slice_Supported : constant Boolean := True;
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-- Indicates whether time slicing is supported (i.e SCHED_RR is supported)
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type timespec is private;
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function nanosleep (rqtp, rmtp : access timespec) return int;
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pragma Import (C, nanosleep, "nanosleep");
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type clockid_t is new int;
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CLOCK_REALTIME : constant clockid_t := 0;
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-- From: /usr/include/time.h
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function clock_gettime
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(clock_id : clockid_t;
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tp : access timespec)
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return int;
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pragma Import (C, clock_gettime, "clock_gettime");
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function clock_getres
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(clock_id : clockid_t;
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res : access timespec) return int;
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pragma Import (C, clock_getres, "clock_getres");
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function To_Duration (TS : timespec) return Duration;
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pragma Inline (To_Duration);
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function To_Timespec (D : Duration) return timespec;
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pragma Inline (To_Timespec);
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-- From: /usr/include/unistd.h
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function sysconf (name : int) return long;
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pragma Import (C, sysconf);
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-- From /usr/include/i386-gnu/bits/confname.h
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SC_CLK_TCK : constant := 2;
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SC_NPROCESSORS_ONLN : constant := 84;
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-------------------------
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-- Priority Scheduling --
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-------------------------
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-- From /usr/include/i386-gnu/bits/sched.h
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SCHED_OTHER : constant := 0;
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SCHED_FIFO : constant := 1;
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SCHED_RR : constant := 2;
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function To_Target_Priority
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(Prio : System.Any_Priority) return Interfaces.C.int;
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-- Maps System.Any_Priority to a POSIX priority.
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-------------
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-- Process --
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-------------
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type pid_t is private;
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-- From: /usr/include/signal.h
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function kill (pid : pid_t; sig : Signal) return int;
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pragma Import (C, kill, "kill");
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-- From: /usr/include/unistd.h
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function getpid return pid_t;
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pragma Import (C, getpid, "getpid");
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---------
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-- LWP --
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---------
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-- From: /usr/include/pthread/pthread.h
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function lwp_self return System.Address;
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-- lwp_self does not exist on this thread library, revert to pthread_self
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-- which is the closest approximation (with getpid). This function is
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-- needed to share 7staprop.adb across POSIX-like targets.
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pragma Import (C, lwp_self, "pthread_self");
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-------------
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-- Threads --
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-------------
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type Thread_Body is access
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function (arg : System.Address) return System.Address;
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pragma Convention (C, Thread_Body);
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function Thread_Body_Access is new
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Unchecked_Conversion (System.Address, Thread_Body);
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-- From: /usr/include/bits/pthread.h:typedef int __pthread_t;
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-- /usr/include/pthread/pthreadtypes.h:typedef __pthread_t pthread_t;
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type pthread_t is new unsigned_long;
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subtype Thread_Id is pthread_t;
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function To_pthread_t is new Unchecked_Conversion
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(unsigned_long, pthread_t);
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type pthread_mutex_t is limited private;
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type pthread_rwlock_t is limited private;
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type pthread_cond_t is limited private;
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type pthread_attr_t is limited private;
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type pthread_mutexattr_t is limited private;
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type pthread_rwlockattr_t is limited private;
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type pthread_condattr_t is limited private;
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type pthread_key_t is private;
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-- From /usr/include/pthread/pthreadtypes.h
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PTHREAD_CREATE_DETACHED : constant := 1;
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PTHREAD_CREATE_JOINABLE : constant := 0;
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PTHREAD_SCOPE_PROCESS : constant := 1;
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PTHREAD_SCOPE_SYSTEM : constant := 0;
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-----------
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-- Stack --
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-----------
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-- From: /usr/include/i386-gnu/bits/sigstack.h
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type stack_t is record
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ss_sp : System.Address;
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ss_size : size_t;
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ss_flags : int;
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end record;
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pragma Convention (C, stack_t);
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function sigaltstack
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(ss : not null access stack_t;
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oss : access stack_t) return int;
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pragma Import (C, sigaltstack, "sigaltstack");
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Alternate_Stack : aliased System.Address;
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-- This is a dummy definition, never used (Alternate_Stack_Size is null)
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Alternate_Stack_Size : constant := 0;
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-- No alternate signal stack is used on this platform
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Stack_Base_Available : constant Boolean := False;
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-- Indicates whether the stack base is available on this target
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function Get_Stack_Base (thread : pthread_t) return Address;
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pragma Inline (Get_Stack_Base);
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-- returns the stack base of the specified thread. Only call this function
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-- when Stack_Base_Available is True.
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-- From: /usr/include/i386-gnu/bits/shm.h
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function Get_Page_Size return int;
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pragma Import (C, Get_Page_Size, "getpagesize");
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-- Returns the size of a page
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-- From /usr/include/i386-gnu/bits/mman.h
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PROT_NONE : constant := 0;
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PROT_READ : constant := 4;
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PROT_WRITE : constant := 2;
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PROT_EXEC : constant := 1;
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PROT_ALL : constant := PROT_READ + PROT_WRITE + PROT_EXEC;
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PROT_ON : constant := PROT_NONE;
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PROT_OFF : constant := PROT_ALL;
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-- From /usr/include/i386-gnu/bits/mman.h
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function mprotect (addr : Address; len : size_t; prot : int) return int;
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pragma Import (C, mprotect);
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---------------------------------------
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-- Nonstandard Thread Initialization --
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---------------------------------------
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procedure pthread_init;
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pragma Inline (pthread_init);
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-- This is a dummy procedure to share some GNULLI files
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-------------------------
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-- POSIX.1c Section 3 --
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-------------------------
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-- From: /usr/include/signal.h:
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-- sigwait (__const sigset_t *__restrict __set, int *__restrict __sig)
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function sigwait (set : access sigset_t; sig : access Signal) return int;
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pragma Import (C, sigwait, "sigwait");
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-- From: /usr/include/pthread/pthread.h:
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-- extern int pthread_kill (pthread_t thread, int signo);
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function pthread_kill (thread : pthread_t; sig : Signal) return int;
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pragma Import (C, pthread_kill, "pthread_kill");
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-- From: /usr/include/i386-gnu/bits/sigthread.h
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-- extern int pthread_sigmask (int __how, __const __sigset_t *__newmask,
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-- __sigset_t *__oldmask) __THROW;
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function pthread_sigmask
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(how : int;
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set : access sigset_t;
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oset : access sigset_t) return int;
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pragma Import (C, pthread_sigmask, "pthread_sigmask");
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--------------------------
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-- POSIX.1c Section 11 --
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--------------------------
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-- From: /usr/include/pthread/pthread.h and
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-- /usr/include/pthread/pthreadtypes.h
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function pthread_mutexattr_init
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(attr : access pthread_mutexattr_t) return int;
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pragma Import (C, pthread_mutexattr_init, "pthread_mutexattr_init");
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function pthread_mutexattr_destroy
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(attr : access pthread_mutexattr_t) return int;
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pragma Import (C, pthread_mutexattr_destroy, "pthread_mutexattr_destroy");
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function pthread_mutex_init
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(mutex : access pthread_mutex_t;
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attr : access pthread_mutexattr_t) return int;
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pragma Import (C, pthread_mutex_init, "pthread_mutex_init");
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function pthread_mutex_destroy (mutex : access pthread_mutex_t) return int;
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pragma Import (C, pthread_mutex_destroy, "pthread_mutex_destroy");
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function pthread_mutex_lock (mutex : access pthread_mutex_t) return int;
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pragma Import (C, pthread_mutex_lock, "pthread_mutex_lock");
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function pthread_mutex_unlock (mutex : access pthread_mutex_t) return int;
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pragma Import (C, pthread_mutex_unlock, "pthread_mutex_unlock");
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function pthread_rwlockattr_init
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(attr : access pthread_rwlockattr_t) return int;
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pragma Import (C, pthread_rwlockattr_init, "pthread_rwlockattr_init");
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function pthread_rwlockattr_destroy
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(attr : access pthread_rwlockattr_t) return int;
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pragma Import (C, pthread_rwlockattr_destroy, "pthread_rwlockattr_destroy");
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PTHREAD_RWLOCK_PREFER_READER_NP : constant := 0;
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PTHREAD_RWLOCK_PREFER_WRITER_NP : constant := 1;
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PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP : constant := 2;
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function pthread_rwlockattr_setkind_np
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(attr : access pthread_rwlockattr_t;
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pref : int) return int;
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pragma Import
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(C, pthread_rwlockattr_setkind_np, "pthread_rwlockattr_setkind_np");
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function pthread_rwlock_init
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(mutex : access pthread_rwlock_t;
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attr : access pthread_rwlockattr_t) return int;
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pragma Import (C, pthread_rwlock_init, "pthread_rwlock_init");
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function pthread_rwlock_destroy
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(mutex : access pthread_rwlock_t) return int;
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pragma Import (C, pthread_rwlock_destroy, "pthread_rwlock_destroy");
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function pthread_rwlock_rdlock (mutex : access pthread_rwlock_t) return int;
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pragma Import (C, pthread_rwlock_rdlock, "pthread_rwlock_rdlock");
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function pthread_rwlock_wrlock (mutex : access pthread_rwlock_t) return int;
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pragma Import (C, pthread_rwlock_wrlock, "pthread_rwlock_wrlock");
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function pthread_rwlock_unlock (mutex : access pthread_rwlock_t) return int;
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pragma Import (C, pthread_rwlock_unlock, "pthread_rwlock_unlock");
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function pthread_condattr_init
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(attr : access pthread_condattr_t) return int;
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pragma Import (C, pthread_condattr_init, "pthread_condattr_init");
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function pthread_condattr_destroy
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(attr : access pthread_condattr_t) return int;
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pragma Import (C, pthread_condattr_destroy, "pthread_condattr_destroy");
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function pthread_cond_init
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(cond : access pthread_cond_t;
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attr : access pthread_condattr_t) return int;
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pragma Import (C, pthread_cond_init, "pthread_cond_init");
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function pthread_cond_destroy (cond : access pthread_cond_t) return int;
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pragma Import (C, pthread_cond_destroy, "pthread_cond_destroy");
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function pthread_cond_signal (cond : access pthread_cond_t) return int;
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pragma Import (C, pthread_cond_signal, "pthread_cond_signal");
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function pthread_cond_wait
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(cond : access pthread_cond_t;
|
|
mutex : access pthread_mutex_t) return int;
|
|
pragma Import (C, pthread_cond_wait, "pthread_cond_wait");
|
|
|
|
function pthread_cond_timedwait
|
|
(cond : access pthread_cond_t;
|
|
mutex : access pthread_mutex_t;
|
|
abstime : access timespec) return int;
|
|
pragma Import (C, pthread_cond_timedwait, "pthread_cond_timedwait");
|
|
|
|
Relative_Timed_Wait : constant Boolean := False;
|
|
-- pthread_cond_timedwait requires an absolute delay time
|
|
|
|
--------------------------
|
|
-- POSIX.1c Section 13 --
|
|
--------------------------
|
|
-- From /usr/include/pthread/pthreadtypes.h
|
|
|
|
PTHREAD_PRIO_NONE : constant := 0;
|
|
PTHREAD_PRIO_PROTECT : constant := 2;
|
|
PTHREAD_PRIO_INHERIT : constant := 1;
|
|
|
|
-- GNU/Hurd does not support Thread Priority Protection or Thread
|
|
-- Priority Inheritance and lacks some pthread_mutexattr_* functions.
|
|
-- Replace them with dummy versions.
|
|
-- From: /usr/include/pthread/pthread.h
|
|
|
|
function pthread_mutexattr_setprotocol
|
|
(attr : access pthread_mutexattr_t;
|
|
protocol : int) return int;
|
|
pragma Import (C, pthread_mutexattr_setprotocol,
|
|
"pthread_mutexattr_setprotocol");
|
|
|
|
function pthread_mutexattr_getprotocol
|
|
(attr : access pthread_mutexattr_t;
|
|
protocol : access int) return int;
|
|
pragma Import (C, pthread_mutexattr_getprotocol,
|
|
"pthread_mutexattr_getprotocol");
|
|
|
|
function pthread_mutexattr_setprioceiling
|
|
(attr : access pthread_mutexattr_t;
|
|
prioceiling : int) return int;
|
|
|
|
function pthread_mutexattr_getprioceiling
|
|
(attr : access pthread_mutexattr_t;
|
|
prioceiling : access int) return int;
|
|
|
|
type struct_sched_param is record
|
|
sched_priority : int; -- scheduling priority
|
|
end record;
|
|
pragma Convention (C, struct_sched_param);
|
|
|
|
function pthread_setschedparam
|
|
(thread : pthread_t;
|
|
policy : int;
|
|
param : access struct_sched_param) return int;
|
|
|
|
function pthread_attr_setscope
|
|
(attr : access pthread_attr_t;
|
|
contentionscope : int) return int;
|
|
pragma Import (C, pthread_attr_setscope, "pthread_attr_setscope");
|
|
|
|
function pthread_attr_getscope
|
|
(attr : access pthread_attr_t;
|
|
contentionscope : access int) return int;
|
|
pragma Import (C, pthread_attr_getscope, "pthread_attr_getscope");
|
|
|
|
function pthread_attr_setinheritsched
|
|
(attr : access pthread_attr_t;
|
|
inheritsched : int) return int;
|
|
pragma Import (C, pthread_attr_setinheritsched,
|
|
"pthread_attr_setinheritsched");
|
|
|
|
function pthread_attr_getinheritsched
|
|
(attr : access pthread_attr_t;
|
|
inheritsched : access int) return int;
|
|
pragma Import (C, pthread_attr_getinheritsched,
|
|
"pthread_attr_getinheritsched");
|
|
|
|
function pthread_attr_setschedpolicy
|
|
(attr : access pthread_attr_t;
|
|
policy : int) return int;
|
|
pragma Import (C, pthread_attr_setschedpolicy, "pthread_setschedpolicy");
|
|
|
|
function sched_yield return int;
|
|
pragma Import (C, sched_yield, "sched_yield");
|
|
|
|
---------------------------
|
|
-- P1003.1c - Section 16 --
|
|
---------------------------
|
|
|
|
function pthread_attr_init
|
|
(attributes : access pthread_attr_t) return int;
|
|
pragma Import (C, pthread_attr_init, "pthread_attr_init");
|
|
|
|
function pthread_attr_destroy
|
|
(attributes : access pthread_attr_t) return int;
|
|
pragma Import (C, pthread_attr_destroy, "pthread_attr_destroy");
|
|
|
|
function pthread_attr_setdetachstate
|
|
(attr : access pthread_attr_t;
|
|
detachstate : int) return int;
|
|
pragma Import
|
|
(C, pthread_attr_setdetachstate, "pthread_attr_setdetachstate");
|
|
|
|
function pthread_attr_setstacksize
|
|
(attr : access pthread_attr_t;
|
|
stacksize : size_t) return int;
|
|
pragma Import (C, pthread_attr_setstacksize, "pthread_attr_setstacksize");
|
|
|
|
-- From: /usr/include/pthread/pthread.h
|
|
function pthread_create
|
|
(thread : access pthread_t;
|
|
attributes : access pthread_attr_t;
|
|
start_routine : Thread_Body;
|
|
arg : System.Address) return int;
|
|
pragma Import (C, pthread_create, "pthread_create");
|
|
|
|
procedure pthread_exit (status : System.Address);
|
|
pragma Import (C, pthread_exit, "pthread_exit");
|
|
|
|
function pthread_self return pthread_t;
|
|
pragma Import (C, pthread_self, "pthread_self");
|
|
|
|
--------------------------
|
|
-- POSIX.1c Section 17 --
|
|
--------------------------
|
|
|
|
function pthread_setspecific
|
|
(key : pthread_key_t;
|
|
value : System.Address) return int;
|
|
pragma Import (C, pthread_setspecific, "pthread_setspecific");
|
|
|
|
function pthread_getspecific (key : pthread_key_t) return System.Address;
|
|
pragma Import (C, pthread_getspecific, "pthread_getspecific");
|
|
|
|
type destructor_pointer is access procedure (arg : System.Address);
|
|
pragma Convention (C, destructor_pointer);
|
|
|
|
function pthread_key_create
|
|
(key : access pthread_key_t;
|
|
destructor : destructor_pointer) return int;
|
|
pragma Import (C, pthread_key_create, "pthread_key_create");
|
|
|
|
-- From /usr/include/i386-gnu/bits/sched.h
|
|
CPU_SETSIZE : constant := 1_024;
|
|
|
|
type bit_field is array (1 .. CPU_SETSIZE) of Boolean;
|
|
for bit_field'Size use CPU_SETSIZE;
|
|
pragma Pack (bit_field);
|
|
pragma Convention (C, bit_field);
|
|
|
|
type cpu_set_t is record
|
|
bits : bit_field;
|
|
end record;
|
|
pragma Convention (C, cpu_set_t);
|
|
|
|
private
|
|
|
|
type sigset_t is array (1 .. 4) of unsigned;
|
|
|
|
-- In GNU/Hurd the component sa_handler turns out to
|
|
-- be one a union type, and the selector is a macro:
|
|
-- #define sa_handler __sigaction_handler.sa_handler
|
|
-- #define sa_sigaction __sigaction_handler.sa_sigaction
|
|
|
|
-- Should we add a signal_context type here ?
|
|
-- How could it be done independent of the CPU architecture ?
|
|
-- sigcontext type is opaque, so it is architecturally neutral.
|
|
-- It is always passed as an access type, so define it as an empty record
|
|
-- since the contents are not used anywhere.
|
|
type struct_sigcontext is null record;
|
|
pragma Convention (C, struct_sigcontext);
|
|
|
|
type pid_t is new int;
|
|
|
|
type time_t is new long;
|
|
|
|
type timespec is record
|
|
tv_sec : time_t;
|
|
tv_nsec : long;
|
|
end record;
|
|
pragma Convention (C, timespec);
|
|
|
|
-- From: /usr/include/pthread/pthreadtypes.h:
|
|
-- typedef struct __pthread_attr pthread_attr_t;
|
|
-- /usr/include/i386-gnu/bits/thread-attr.h: struct __pthread_attr...
|
|
-- /usr/include/pthread/pthreadtypes.h: enum __pthread_contentionscope
|
|
-- enum __pthread_detachstate detachstate;
|
|
-- enum __pthread_inheritsched inheritsched;
|
|
-- enum __pthread_contentionscope contentionscope;
|
|
-- Not used: schedpolicy : int;
|
|
type pthread_attr_t is record
|
|
schedparam : struct_sched_param;
|
|
stackaddr : System.Address;
|
|
stacksize : size_t;
|
|
guardsize : size_t;
|
|
detachstate : int;
|
|
inheritsched : int;
|
|
contentionscope : int;
|
|
schedpolicy : int;
|
|
end record;
|
|
pragma Convention (C, pthread_attr_t);
|
|
|
|
-- From: /usr/include/pthread/pthreadtypes.h:
|
|
-- typedef struct __pthread_condattr pthread_condattr_t;
|
|
-- From: /usr/include/i386-gnu/bits/condition-attr.h:
|
|
-- struct __pthread_condattr {
|
|
-- enum __pthread_process_shared pshared;
|
|
-- __Clockid_T Clock;}
|
|
-- From: /usr/include/pthread/pthreadtypes.h:
|
|
-- enum __pthread_process_shared
|
|
type pthread_condattr_t is record
|
|
pshared : int;
|
|
clock : clockid_t;
|
|
end record;
|
|
pragma Convention (C, pthread_condattr_t);
|
|
|
|
-- From: /usr/include/pthread/pthreadtypes.h:
|
|
-- typedef struct __pthread_mutexattr pthread_mutexattr_t; and
|
|
-- /usr/include/i386-gnu/bits/mutex-attr.h
|
|
-- struct __pthread_mutexattr {
|
|
-- int prioceiling;
|
|
-- enum __pthread_mutex_protocol protocol;
|
|
-- enum __pthread_process_shared pshared;
|
|
-- enum __pthread_mutex_type mutex_type;};
|
|
type pthread_mutexattr_t is record
|
|
prioceiling : int;
|
|
protocol : int;
|
|
pshared : int;
|
|
mutex_type : int;
|
|
end record;
|
|
pragma Convention (C, pthread_mutexattr_t);
|
|
|
|
-- From: /usr/include/pthread/pthreadtypes.h
|
|
-- typedef struct __pthread_mutex pthread_mutex_t; and
|
|
-- /usr/include/i386-gnu/bits/mutex.h:
|
|
-- struct __pthread_mutex {
|
|
-- __pthread_spinlock_t __held;
|
|
-- __pthread_spinlock_t __lock;
|
|
-- /* in cthreads, mutex_init does not initialized the third
|
|
-- pointer, as such, we cannot rely on its value for anything. */
|
|
-- char *cthreadscompat1;
|
|
-- struct __pthread *__queue;
|
|
-- struct __pthread_mutexattr *attr;
|
|
-- void *data;
|
|
-- /* up to this point, we are completely compatible with cthreads
|
|
-- and what libc expects. */
|
|
-- void *owner;
|
|
-- unsigned locks;
|
|
-- /* if null then the default attributes apply. */
|
|
-- };
|
|
|
|
type pthread_mutex_t is record
|
|
held : int;
|
|
lock : int;
|
|
cthreadcompat : System.Address;
|
|
queue : System.Address;
|
|
attr : System.Address;
|
|
data : System.Address;
|
|
owner : System.Address;
|
|
locks : unsigned;
|
|
end record;
|
|
pragma Convention (C, pthread_mutex_t);
|
|
-- pointer needed?
|
|
-- type pthread_mutex_t_ptr is access pthread_mutex_t;
|
|
|
|
-- From: /usr/include/pthread/pthreadtypes.h:
|
|
-- typedef struct __pthread_cond pthread_cond_t;
|
|
-- typedef struct __pthread_condattr pthread_condattr_t;
|
|
-- /usr/include/i386-gnu/bits/condition.h:struct __pthread_cond{}
|
|
-- pthread_condattr_t: see above!
|
|
-- /usr/include/i386-gnu/bits/condition.h:
|
|
-- struct __pthread_condimpl *__impl;
|
|
|
|
type pthread_cond_t is record
|
|
lock : int;
|
|
queue : System.Address;
|
|
condattr : System.Address;
|
|
impl : System.Address;
|
|
data : System.Address;
|
|
end record;
|
|
pragma Convention (C, pthread_cond_t);
|
|
|
|
-- From: /usr/include/pthread/pthreadtypes.h:
|
|
-- typedef __pthread_key pthread_key_t; and
|
|
-- /usr/include/i386-gnu/bits/thread-specific.h:
|
|
-- typedef int __pthread_key;
|
|
|
|
type pthread_key_t is new int;
|
|
|
|
-- From: /usr/include/i386-gnu/bits/rwlock-attr.h:
|
|
-- struct __pthread_rwlockattr {
|
|
-- enum __pthread_process_shared pshared; };
|
|
|
|
type pthread_rwlockattr_t is record
|
|
pshared : int;
|
|
end record;
|
|
pragma Convention (C, pthread_rwlockattr_t);
|
|
|
|
-- From: /usr/include/i386-gnu/bits/rwlock.h:
|
|
-- struct __pthread_rwlock {
|
|
-- __pthread_spinlock_t __held;
|
|
-- __pthread_spinlock_t __lock;
|
|
-- int readers;
|
|
-- struct __pthread *readerqueue;
|
|
-- struct __pthread *writerqueue;
|
|
-- struct __pthread_rwlockattr *__attr;
|
|
-- void *__data; };
|
|
|
|
type pthread_rwlock_t is record
|
|
held : int;
|
|
lock : int;
|
|
readers : int;
|
|
readerqueue : System.Address;
|
|
writerqueue : System.Address;
|
|
attr : pthread_rwlockattr_t;
|
|
data : int;
|
|
end record;
|
|
pragma Convention (C, pthread_rwlock_t);
|
|
|
|
end System.OS_Interface;
|