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jeremybenn |
------------------------------------------------------------------------------
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-- --
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-- GNAT 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) 1995-2008, Free Software Foundation, Inc. --
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-- --
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-- GNARL 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 2, or (at your option) any later ver- --
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-- sion. GNARL 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. See the GNU General Public License --
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-- for more details. You should have received a copy of the GNU General --
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-- Public License distributed with GNARL; see file COPYING. If not, write --
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-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
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-- Boston, MA 02110-1301, USA. --
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-- --
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-- As a special exception, if other files instantiate generics from this --
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-- unit, or you link this unit with other files to produce an executable, --
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-- this unit does not by itself cause the resulting executable to be --
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-- covered by the GNU General Public License. This exception does not --
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-- however invalidate any other reasons why the executable file might be --
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-- covered by the GNU Public License. --
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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 HP-UX 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 the tasking run-time (libgnarl).
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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 Ada.Unchecked_Conversion;
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with Interfaces.C;
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package System.OS_Interface is
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pragma Preelaborate;
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pragma Linker_Options ("-lcma");
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subtype int is Interfaces.C.int;
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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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function errno return int;
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pragma Import (C, errno, "__get_errno");
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EAGAIN : constant := 11;
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EINTR : constant := 4;
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EINVAL : constant := 22;
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ENOMEM : constant := 12;
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ETIME : constant := 52;
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ETIMEDOUT : constant := 238;
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FUNC_ERR : constant := -1;
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-------------
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-- Signals --
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-------------
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Max_Interrupt : constant := 44;
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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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SIGUSR1 : constant := 16; -- user defined signal 1
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SIGUSR2 : constant := 17; -- user defined signal 2
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SIGCLD : constant := 18; -- alias for SIGCHLD
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SIGCHLD : constant := 18; -- child status change
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SIGPWR : constant := 19; -- power-fail restart
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SIGVTALRM : constant := 20; -- virtual timer alarm
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SIGPROF : constant := 21; -- profiling timer alarm
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SIGIO : constant := 22; -- asynchronous I/O
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SIGPOLL : constant := 22; -- pollable event occurred
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SIGWINCH : constant := 23; -- window size change
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SIGSTOP : constant := 24; -- stop (cannot be caught or ignored)
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SIGTSTP : constant := 25; -- user stop requested from tty
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SIGCONT : constant := 26; -- stopped process has been continued
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SIGTTIN : constant := 27; -- background tty read attempted
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SIGTTOU : constant := 28; -- background tty write attempted
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SIGURG : constant := 29; -- urgent condition on IO channel
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SIGLOST : constant := 30; -- remote lock lost (NFS)
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SIGDIL : constant := 32; -- DIL signal
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SIGXCPU : constant := 33; -- CPU time limit exceeded (setrlimit)
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SIGXFSZ : constant := 34; -- file size limit exceeded (setrlimit)
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SIGADAABORT : constant := SIGABRT;
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-- Note: on other targets, we usually use SIGABRT, but on HP/UX, it
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-- appears that SIGABRT can't be used in sigwait(), so we use SIGTERM.
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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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(SIGBUS, SIGTRAP, SIGTTIN, SIGTTOU, SIGTSTP);
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Reserved : constant Signal_Set := (SIGKILL, SIGSTOP);
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type sigset_t is private;
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type isr_address is access procedure (sig : int);
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pragma Convention (C, isr_address);
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function intr_attach (sig : int; handler : isr_address) return long;
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Intr_Attach_Reset : constant Boolean := True;
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-- True if intr_attach is reset after an interrupt handler is called
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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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type Signal_Handler is access procedure (signo : Signal);
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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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SA_RESTART : constant := 16#40#;
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SA_SIGINFO : constant := 16#10#;
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SA_ONSTACK : constant := 16#01#;
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SIG_BLOCK : constant := 0;
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SIG_UNBLOCK : constant := 1;
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SIG_SETMASK : constant := 2;
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SIG_DFL : constant := 0;
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SIG_IGN : constant := 1;
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SIG_ERR : constant := -1;
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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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type timespec is private;
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function nanosleep (rqtp, rmtp : access timespec) return int;
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pragma Import (C, nanosleep);
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type clockid_t is private;
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CLOCK_REALTIME : constant clockid_t;
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function Clock_Gettime
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(Clock_Id : clockid_t; Tp : access timespec) return int;
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pragma Import (C, Clock_Gettime);
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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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-------------------------
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-- Priority Scheduling --
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-------------------------
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SCHED_FIFO : constant := 0;
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SCHED_RR : constant := 1;
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SCHED_OTHER : constant := 2;
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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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function kill (pid : pid_t; sig : Signal) return int;
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pragma Import (C, kill, "kill");
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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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-- 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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Ada.Unchecked_Conversion (System.Address, Thread_Body);
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type pthread_t is private;
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subtype Thread_Id is pthread_t;
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type pthread_mutex_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_condattr_t is limited private;
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type pthread_key_t is private;
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-----------
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-- Stack --
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-----------
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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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-- This is a dummy procedure to share some GNULLI files
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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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function sigwait (set : access sigset_t) return int;
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pragma Import (C, sigwait, "cma_sigwait");
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function sigwait
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(set : access sigset_t;
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sig : access Signal) return int;
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pragma Inline (sigwait);
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-- DCE_THREADS has a nonstandard sigwait
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function pthread_kill
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(thread : pthread_t;
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sig : Signal) return int;
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pragma Inline (pthread_kill);
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-- DCE_THREADS doesn't have pthread_kill
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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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-- DCE THREADS does not have pthread_sigmask. Instead, it uses sigprocmask
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-- to do the signal handling when the thread library is sucked in.
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pragma Import (C, pthread_sigmask, "sigprocmask");
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--------------------------
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-- POSIX.1c Section 11 --
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--------------------------
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function pthread_mutexattr_init
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(attr : access pthread_mutexattr_t) return int;
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-- DCE_THREADS has a nonstandard 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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-- DCE_THREADS has a nonstandard 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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-- DCE_THREADS has a nonstandard pthread_mutex_init
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function pthread_mutex_destroy (mutex : access pthread_mutex_t) return int;
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-- DCE_THREADS has a nonstandard pthread_mutex_destroy
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function pthread_mutex_lock (mutex : access pthread_mutex_t) return int;
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pragma Inline (pthread_mutex_lock);
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-- DCE_THREADS has nonstandard pthread_mutex_lock
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function pthread_mutex_unlock (mutex : access pthread_mutex_t) return int;
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pragma Inline (pthread_mutex_unlock);
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-- DCE_THREADS has nonstandard pthread_mutex_lock
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function pthread_condattr_init
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(attr : access pthread_condattr_t) return int;
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-- DCE_THREADS has nonstandard 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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-- DCE_THREADS has nonstandard 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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-- DCE_THREADS has nonstandard pthread_cond_init
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function pthread_cond_destroy (cond : access pthread_cond_t) return int;
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-- DCE_THREADS has nonstandard pthread_cond_destroy
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function pthread_cond_signal (cond : access pthread_cond_t) return int;
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pragma Inline (pthread_cond_signal);
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-- DCE_THREADS has nonstandard pthread_cond_signal
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function pthread_cond_wait
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(cond : access pthread_cond_t;
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mutex : access pthread_mutex_t) return int;
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pragma Inline (pthread_cond_wait);
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-- DCE_THREADS has a nonstandard pthread_cond_wait
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function pthread_cond_timedwait
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(cond : access pthread_cond_t;
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mutex : access pthread_mutex_t;
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abstime : access timespec) return int;
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pragma Inline (pthread_cond_timedwait);
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-- DCE_THREADS has a nonstandard pthread_cond_timedwait
|
354 |
|
|
|
355 |
|
|
--------------------------
|
356 |
|
|
-- POSIX.1c Section 13 --
|
357 |
|
|
--------------------------
|
358 |
|
|
|
359 |
|
|
type struct_sched_param is record
|
360 |
|
|
sched_priority : int; -- scheduling priority
|
361 |
|
|
end record;
|
362 |
|
|
|
363 |
|
|
function pthread_setschedparam
|
364 |
|
|
(thread : pthread_t;
|
365 |
|
|
policy : int;
|
366 |
|
|
param : access struct_sched_param) return int;
|
367 |
|
|
pragma Inline (pthread_setschedparam);
|
368 |
|
|
-- DCE_THREADS has a nonstandard pthread_setschedparam
|
369 |
|
|
|
370 |
|
|
function sched_yield return int;
|
371 |
|
|
pragma Inline (sched_yield);
|
372 |
|
|
-- DCE_THREADS has a nonstandard sched_yield
|
373 |
|
|
|
374 |
|
|
---------------------------
|
375 |
|
|
-- P1003.1c - Section 16 --
|
376 |
|
|
---------------------------
|
377 |
|
|
|
378 |
|
|
function pthread_attr_init (attributes : access pthread_attr_t) return int;
|
379 |
|
|
pragma Inline (pthread_attr_init);
|
380 |
|
|
-- DCE_THREADS has a nonstandard pthread_attr_init
|
381 |
|
|
|
382 |
|
|
function pthread_attr_destroy
|
383 |
|
|
(attributes : access pthread_attr_t) return int;
|
384 |
|
|
pragma Inline (pthread_attr_destroy);
|
385 |
|
|
-- DCE_THREADS has a nonstandard pthread_attr_destroy
|
386 |
|
|
|
387 |
|
|
function pthread_attr_setstacksize
|
388 |
|
|
(attr : access pthread_attr_t;
|
389 |
|
|
stacksize : size_t) return int;
|
390 |
|
|
pragma Inline (pthread_attr_setstacksize);
|
391 |
|
|
-- DCE_THREADS has a nonstandard pthread_attr_setstacksize
|
392 |
|
|
|
393 |
|
|
function pthread_create
|
394 |
|
|
(thread : access pthread_t;
|
395 |
|
|
attributes : access pthread_attr_t;
|
396 |
|
|
start_routine : Thread_Body;
|
397 |
|
|
arg : System.Address) return int;
|
398 |
|
|
pragma Inline (pthread_create);
|
399 |
|
|
-- DCE_THREADS has a nonstandard pthread_create
|
400 |
|
|
|
401 |
|
|
procedure pthread_detach (thread : access pthread_t);
|
402 |
|
|
pragma Import (C, pthread_detach);
|
403 |
|
|
|
404 |
|
|
procedure pthread_exit (status : System.Address);
|
405 |
|
|
pragma Import (C, pthread_exit, "pthread_exit");
|
406 |
|
|
|
407 |
|
|
function pthread_self return pthread_t;
|
408 |
|
|
pragma Import (C, pthread_self, "pthread_self");
|
409 |
|
|
|
410 |
|
|
--------------------------
|
411 |
|
|
-- POSIX.1c Section 17 --
|
412 |
|
|
--------------------------
|
413 |
|
|
|
414 |
|
|
function pthread_setspecific
|
415 |
|
|
(key : pthread_key_t;
|
416 |
|
|
value : System.Address) return int;
|
417 |
|
|
pragma Inline (pthread_setspecific);
|
418 |
|
|
-- DCE_THREADS has a nonstandard pthread_setspecific
|
419 |
|
|
|
420 |
|
|
function pthread_getspecific (key : pthread_key_t) return System.Address;
|
421 |
|
|
pragma Inline (pthread_getspecific);
|
422 |
|
|
-- DCE_THREADS has a nonstandard pthread_getspecific
|
423 |
|
|
|
424 |
|
|
type destructor_pointer is access procedure (arg : System.Address);
|
425 |
|
|
pragma Convention (C, destructor_pointer);
|
426 |
|
|
|
427 |
|
|
function pthread_key_create
|
428 |
|
|
(key : access pthread_key_t;
|
429 |
|
|
destructor : destructor_pointer) return int;
|
430 |
|
|
pragma Inline (pthread_key_create);
|
431 |
|
|
-- DCE_THREADS has a nonstandard pthread_key_create
|
432 |
|
|
|
433 |
|
|
private
|
434 |
|
|
|
435 |
|
|
type array_type_1 is array (Integer range 0 .. 7) of unsigned_long;
|
436 |
|
|
type sigset_t is record
|
437 |
|
|
X_X_sigbits : array_type_1;
|
438 |
|
|
end record;
|
439 |
|
|
pragma Convention (C, sigset_t);
|
440 |
|
|
|
441 |
|
|
type pid_t is new int;
|
442 |
|
|
|
443 |
|
|
type time_t is new long;
|
444 |
|
|
|
445 |
|
|
type timespec is record
|
446 |
|
|
tv_sec : time_t;
|
447 |
|
|
tv_nsec : long;
|
448 |
|
|
end record;
|
449 |
|
|
pragma Convention (C, timespec);
|
450 |
|
|
|
451 |
|
|
type clockid_t is new int;
|
452 |
|
|
CLOCK_REALTIME : constant clockid_t := 1;
|
453 |
|
|
|
454 |
|
|
type cma_t_address is new System.Address;
|
455 |
|
|
|
456 |
|
|
type cma_t_handle is record
|
457 |
|
|
field1 : cma_t_address;
|
458 |
|
|
field2 : Short_Integer;
|
459 |
|
|
field3 : Short_Integer;
|
460 |
|
|
end record;
|
461 |
|
|
for cma_t_handle'Size use 64;
|
462 |
|
|
|
463 |
|
|
type pthread_attr_t is new cma_t_handle;
|
464 |
|
|
pragma Convention (C_Pass_By_Copy, pthread_attr_t);
|
465 |
|
|
|
466 |
|
|
type pthread_condattr_t is new cma_t_handle;
|
467 |
|
|
pragma Convention (C_Pass_By_Copy, pthread_condattr_t);
|
468 |
|
|
|
469 |
|
|
type pthread_mutexattr_t is new cma_t_handle;
|
470 |
|
|
pragma Convention (C_Pass_By_Copy, pthread_mutexattr_t);
|
471 |
|
|
|
472 |
|
|
type pthread_t is new cma_t_handle;
|
473 |
|
|
pragma Convention (C_Pass_By_Copy, pthread_t);
|
474 |
|
|
|
475 |
|
|
type pthread_mutex_t is new cma_t_handle;
|
476 |
|
|
pragma Convention (C_Pass_By_Copy, pthread_mutex_t);
|
477 |
|
|
|
478 |
|
|
type pthread_cond_t is new cma_t_handle;
|
479 |
|
|
pragma Convention (C_Pass_By_Copy, pthread_cond_t);
|
480 |
|
|
|
481 |
|
|
type pthread_key_t is new int;
|
482 |
|
|
|
483 |
|
|
end System.OS_Interface;
|