615 lines
20 KiB
Ada
615 lines
20 KiB
Ada
|
------------------------------------------------------------------------------
|
||
|
|
-- --
|
||
|
|
-- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS --
|
||
|
|
-- --
|
||
|
|
-- S Y S T E M . O S _ I N T E R F A C E --
|
||
|
|
-- --
|
||
|
|
-- S p e c --
|
||
|
|
-- --
|
||
|
|
-- Copyright (C) 1995-2020, Free Software Foundation, Inc. --
|
||
|
|
-- --
|
||
|
|
-- GNAT is free software; you can redistribute it and/or modify it under --
|
||
|
|
-- terms of the GNU General Public License as published by the Free Soft- --
|
||
|
|
-- ware Foundation; either version 3, or (at your option) any later ver- --
|
||
|
|
-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
|
||
|
|
-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
|
||
|
|
-- or FITNESS FOR A PARTICULAR PURPOSE. --
|
||
|
|
-- --
|
||
|
|
-- As a special exception under Section 7 of GPL version 3, you are granted --
|
||
|
|
-- additional permissions described in the GCC Runtime Library Exception, --
|
||
|
|
-- version 3.1, as published by the Free Software Foundation. --
|
||
|
|
-- --
|
||
|
|
-- You should have received a copy of the GNU General Public License and --
|
||
|
|
-- a copy of the GCC Runtime Library Exception along with this program; --
|
||
|
|
-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
|
||
|
|
-- <http://www.gnu.org/licenses/>. --
|
||
|
|
-- --
|
||
|
|
-- GNARL was developed by the GNARL team at Florida State University. --
|
||
|
|
-- Extensive contributions were provided by Ada Core Technologies, Inc. --
|
||
|
|
-- --
|
||
|
|
------------------------------------------------------------------------------
|
||
|
|
|
||
|
|
-- This is a QNX/Neutrino version of this package
|
||
|
|
|
||
|
|
-- This package encapsulates all direct interfaces to OS services
|
||
|
|
-- that are needed by the tasking run-time (libgnarl).
|
||
|
|
|
||
|
|
-- PLEASE DO NOT add any with-clauses to this package or remove the pragma
|
||
|
|
-- Preelaborate. This package is designed to be a bottom-level (leaf) package.
|
||
|
|
|
||
|
|
with Ada.Unchecked_Conversion;
|
||
|
|
with Interfaces.C;
|
||
|
|
with System.OS_Constants;
|
||
|
|
|
||
|
|
package System.OS_Interface is
|
||
|
|
pragma Preelaborate;
|
||
|
|
|
||
|
|
subtype int is Interfaces.C.int;
|
||
|
|
subtype char is Interfaces.C.char;
|
||
|
|
subtype short is Interfaces.C.short;
|
||
|
|
subtype long is Interfaces.C.long;
|
||
|
|
subtype unsigned is Interfaces.C.unsigned;
|
||
|
|
subtype unsigned_short is Interfaces.C.unsigned_short;
|
||
|
|
subtype unsigned_long is Interfaces.C.unsigned_long;
|
||
|
|
subtype unsigned_char is Interfaces.C.unsigned_char;
|
||
|
|
subtype plain_char is Interfaces.C.plain_char;
|
||
|
|
subtype size_t is Interfaces.C.size_t;
|
||
|
|
|
||
|
|
-----------
|
||
|
|
-- Errno --
|
||
|
|
-----------
|
||
|
|
|
||
|
|
function errno return int;
|
||
|
|
pragma Import (C, errno, "__get_errno");
|
||
|
|
|
||
|
|
EPERM : constant := 1;
|
||
|
|
EINTR : constant := 4;
|
||
|
|
EAGAIN : constant := 11;
|
||
|
|
ENOMEM : constant := 12;
|
||
|
|
EINVAL : constant := 22;
|
||
|
|
ETIMEDOUT : constant := 260;
|
||
|
|
|
||
|
|
-------------
|
||
|
|
-- Signals --
|
||
|
|
-------------
|
||
|
|
|
||
|
|
Max_Interrupt : constant := 64;
|
||
|
|
type Signal is new int range 0 .. Max_Interrupt;
|
||
|
|
for Signal'Size use int'Size;
|
||
|
|
|
||
|
|
SIGHUP : constant := 1;
|
||
|
|
SIGINT : constant := 2;
|
||
|
|
SIGQUIT : constant := 3;
|
||
|
|
SIGILL : constant := 4;
|
||
|
|
SIGTRAP : constant := 5;
|
||
|
|
SIGIOT : constant := 6;
|
||
|
|
SIGABRT : constant := 6;
|
||
|
|
SIGDEADLK : constant := 7;
|
||
|
|
SIGFPE : constant := 8;
|
||
|
|
SIGKILL : constant := 9;
|
||
|
|
SIGBUS : constant := 10;
|
||
|
|
SIGSEGV : constant := 11;
|
||
|
|
SIGSYS : constant := 12;
|
||
|
|
SIGPIPE : constant := 13;
|
||
|
|
SIGALRM : constant := 14;
|
||
|
|
SIGTERM : constant := 15;
|
||
|
|
SIGUSR1 : constant := 16;
|
||
|
|
SIGUSR2 : constant := 17;
|
||
|
|
SIGCLD : constant := 18;
|
||
|
|
SIGCHLD : constant := 18;
|
||
|
|
SIGPWR : constant := 19;
|
||
|
|
SIGWINCH : constant := 20;
|
||
|
|
SIGURG : constant := 21;
|
||
|
|
SIGPOLL : constant := 22;
|
||
|
|
SIGIO : constant := 22;
|
||
|
|
SIGSTOP : constant := 23;
|
||
|
|
SIGTSTP : constant := 24;
|
||
|
|
SIGCONT : constant := 25;
|
||
|
|
SIGTTIN : constant := 26;
|
||
|
|
SIGTTOU : constant := 27;
|
||
|
|
SIGVTALRM : constant := 28;
|
||
|
|
SIGPROF : constant := 29;
|
||
|
|
SIGXCPU : constant := 30;
|
||
|
|
SIGXFSZ : constant := 31;
|
||
|
|
|
||
|
|
SIGRTMIN : constant := 41;
|
||
|
|
SITRTMAX : constant := 56;
|
||
|
|
|
||
|
|
SIGSELECT : constant := 57;
|
||
|
|
SIGPHOTON : constant := 58;
|
||
|
|
|
||
|
|
SIGADAABORT : constant := SIGABRT;
|
||
|
|
-- Change this to use another signal for task abort. SIGTERM might be a
|
||
|
|
-- good one.
|
||
|
|
|
||
|
|
type Signal_Set is array (Natural range <>) of Signal;
|
||
|
|
|
||
|
|
Unmasked : constant Signal_Set := (
|
||
|
|
SIGTRAP,
|
||
|
|
-- To enable debugging on multithreaded applications, mark SIGTRAP to
|
||
|
|
-- be kept unmasked.
|
||
|
|
|
||
|
|
SIGBUS,
|
||
|
|
|
||
|
|
SIGTTIN, SIGTTOU, SIGTSTP,
|
||
|
|
-- Keep these three signals unmasked so that background processes and IO
|
||
|
|
-- behaves as normal "C" applications
|
||
|
|
|
||
|
|
SIGPROF,
|
||
|
|
-- To avoid confusing the profiler
|
||
|
|
|
||
|
|
SIGKILL, SIGSTOP);
|
||
|
|
-- These two signals actually can't be masked (POSIX won't allow it)
|
||
|
|
|
||
|
|
Reserved : constant Signal_Set := (SIGABRT, SIGKILL, SIGSTOP, SIGSEGV);
|
||
|
|
|
||
|
|
type sigset_t is private;
|
||
|
|
|
||
|
|
function sigaddset (set : access sigset_t; sig : Signal) return int;
|
||
|
|
pragma Import (C, sigaddset, "sigaddset");
|
||
|
|
|
||
|
|
function sigdelset (set : access sigset_t; sig : Signal) return int;
|
||
|
|
pragma Import (C, sigdelset, "sigdelset");
|
||
|
|
|
||
|
|
function sigfillset (set : access sigset_t) return int;
|
||
|
|
pragma Import (C, sigfillset, "sigfillset");
|
||
|
|
|
||
|
|
function sigismember (set : access sigset_t; sig : Signal) return int;
|
||
|
|
pragma Import (C, sigismember, "sigismember");
|
||
|
|
|
||
|
|
function sigemptyset (set : access sigset_t) return int;
|
||
|
|
pragma Import (C, sigemptyset, "sigemptyset");
|
||
|
|
|
||
|
|
type pad7 is array (1 .. 7) of int;
|
||
|
|
type siginfo_t is record
|
||
|
|
si_signo : int;
|
||
|
|
si_code : int;
|
||
|
|
si_errno : int;
|
||
|
|
X_data : pad7;
|
||
|
|
end record;
|
||
|
|
pragma Convention (C, siginfo_t);
|
||
|
|
|
||
|
|
type struct_sigaction is record
|
||
|
|
sa_handler : System.Address;
|
||
|
|
sa_flags : int;
|
||
|
|
sa_mask : sigset_t;
|
||
|
|
end record;
|
||
|
|
pragma Convention (C, struct_sigaction);
|
||
|
|
|
||
|
|
type struct_sigaction_ptr is access all struct_sigaction;
|
||
|
|
|
||
|
|
SIG_BLOCK : constant := 0;
|
||
|
|
SIG_UNBLOCK : constant := 1;
|
||
|
|
SIG_SETMASK : constant := 2;
|
||
|
|
SIG_PENDING : constant := 5;
|
||
|
|
|
||
|
|
SA_NOCLDSTOP : constant := 16#0001#;
|
||
|
|
SA_SIGINFO : constant := 16#0002#;
|
||
|
|
SA_RESETHAND : constant := 16#0004#;
|
||
|
|
SA_ONSTACK : constant := 16#0008#;
|
||
|
|
SA_NODEFER : constant := 16#0010#;
|
||
|
|
SA_NOCLDWAIT : constant := 16#0020#;
|
||
|
|
|
||
|
|
SS_ONSTACK : constant := 1;
|
||
|
|
SS_DISABLE : constant := 2;
|
||
|
|
|
||
|
|
SIG_DFL : constant := 0;
|
||
|
|
SIG_IGN : constant := 1;
|
||
|
|
|
||
|
|
function sigaction
|
||
|
|
(sig : Signal;
|
||
|
|
act : struct_sigaction_ptr;
|
||
|
|
oact : struct_sigaction_ptr) return int;
|
||
|
|
pragma Import (C, sigaction, "sigaction");
|
||
|
|
|
||
|
|
----------
|
||
|
|
-- Time --
|
||
|
|
----------
|
||
|
|
|
||
|
|
Time_Slice_Supported : constant Boolean := True;
|
||
|
|
-- Indicates whether time slicing is supported
|
||
|
|
|
||
|
|
type timespec is private;
|
||
|
|
|
||
|
|
type clockid_t is new int;
|
||
|
|
|
||
|
|
function clock_gettime
|
||
|
|
(clock_id : clockid_t; tp : access timespec) return int;
|
||
|
|
pragma Import (C, clock_gettime, "clock_gettime");
|
||
|
|
|
||
|
|
function clock_getres
|
||
|
|
(clock_id : clockid_t;
|
||
|
|
res : access timespec) return int;
|
||
|
|
pragma Import (C, clock_getres, "clock_getres");
|
||
|
|
|
||
|
|
function To_Duration (TS : timespec) return Duration;
|
||
|
|
pragma Inline (To_Duration);
|
||
|
|
|
||
|
|
function To_Timespec (D : Duration) return timespec;
|
||
|
|
pragma Inline (To_Timespec);
|
||
|
|
|
||
|
|
-------------------------
|
||
|
|
-- Priority Scheduling --
|
||
|
|
-------------------------
|
||
|
|
|
||
|
|
SCHED_FIFO : constant := 1;
|
||
|
|
SCHED_RR : constant := 2;
|
||
|
|
SCHED_OTHER : constant := 3;
|
||
|
|
|
||
|
|
function To_Target_Priority
|
||
|
|
(Prio : System.Any_Priority) return Interfaces.C.int
|
||
|
|
with Inline_Always;
|
||
|
|
-- Maps System.Any_Priority to a POSIX priority
|
||
|
|
|
||
|
|
-------------
|
||
|
|
-- Process --
|
||
|
|
-------------
|
||
|
|
|
||
|
|
type pid_t is private;
|
||
|
|
|
||
|
|
function kill (pid : pid_t; sig : Signal) return int;
|
||
|
|
pragma Import (C, kill, "kill");
|
||
|
|
|
||
|
|
function getpid return pid_t;
|
||
|
|
pragma Import (C, getpid, "getpid");
|
||
|
|
|
||
|
|
-------------
|
||
|
|
-- Threads --
|
||
|
|
-------------
|
||
|
|
|
||
|
|
type Thread_Body is access
|
||
|
|
function (arg : System.Address) return System.Address;
|
||
|
|
pragma Convention (C, Thread_Body);
|
||
|
|
|
||
|
|
function Thread_Body_Access is new
|
||
|
|
Ada.Unchecked_Conversion (System.Address, Thread_Body);
|
||
|
|
|
||
|
|
type pthread_t is new int;
|
||
|
|
subtype Thread_Id is pthread_t;
|
||
|
|
|
||
|
|
type pthread_mutex_t is limited private;
|
||
|
|
type pthread_cond_t is limited private;
|
||
|
|
type pthread_attr_t is limited private;
|
||
|
|
type pthread_mutexattr_t is limited private;
|
||
|
|
type pthread_condattr_t is limited private;
|
||
|
|
type pthread_key_t is private;
|
||
|
|
|
||
|
|
PTHREAD_CREATE_DETACHED : constant := 1;
|
||
|
|
|
||
|
|
PTHREAD_SCOPE_PROCESS : constant := 4;
|
||
|
|
PTHREAD_SCOPE_SYSTEM : constant := 0;
|
||
|
|
|
||
|
|
PTHREAD_INHERIT_SCHED : constant := 0;
|
||
|
|
PTHREAD_EXPLICIT_SCHED : constant := 2;
|
||
|
|
|
||
|
|
-- Read/Write lock not supported on Android.
|
||
|
|
|
||
|
|
subtype pthread_rwlock_t is pthread_mutex_t;
|
||
|
|
subtype pthread_rwlockattr_t is pthread_mutexattr_t;
|
||
|
|
|
||
|
|
-----------
|
||
|
|
-- Stack --
|
||
|
|
-----------
|
||
|
|
|
||
|
|
type stack_t is record
|
||
|
|
ss_sp : System.Address;
|
||
|
|
ss_flags : int;
|
||
|
|
ss_size : size_t;
|
||
|
|
end record;
|
||
|
|
pragma Convention (C, stack_t);
|
||
|
|
|
||
|
|
function sigaltstack
|
||
|
|
(ss : not null access stack_t;
|
||
|
|
oss : access stack_t) return int
|
||
|
|
with Inline;
|
||
|
|
-- Not supported on QNX
|
||
|
|
|
||
|
|
Alternate_Stack : aliased System.Address;
|
||
|
|
-- Dummy definition: alternate stack not available due to missing
|
||
|
|
-- sigaltstack in QNX
|
||
|
|
|
||
|
|
Alternate_Stack_Size : constant := 0;
|
||
|
|
-- This must be kept in sync with init.c:__gnat_alternate_stack
|
||
|
|
|
||
|
|
Stack_Base_Available : constant Boolean := False;
|
||
|
|
-- Indicates whether the stack base is available on this target
|
||
|
|
|
||
|
|
function Get_Stack_Base (thread : pthread_t) return System.Address
|
||
|
|
with Inline;
|
||
|
|
-- This is a dummy procedure to share some GNULLI files
|
||
|
|
|
||
|
|
function Get_Page_Size return int;
|
||
|
|
pragma Import (C, Get_Page_Size, "getpagesize");
|
||
|
|
-- Returns the size of a page
|
||
|
|
|
||
|
|
PROT_NONE : constant := 16#00_00#;
|
||
|
|
PROT_READ : constant := 16#01_00#;
|
||
|
|
PROT_WRITE : constant := 16#02_00#;
|
||
|
|
PROT_EXEC : constant := 16#04_00#;
|
||
|
|
PROT_ALL : constant := PROT_READ + PROT_WRITE + PROT_EXEC;
|
||
|
|
PROT_ON : constant := PROT_READ;
|
||
|
|
PROT_OFF : constant := PROT_ALL;
|
||
|
|
|
||
|
|
function mprotect (addr : Address; len : size_t; prot : int) return int;
|
||
|
|
pragma Import (C, mprotect);
|
||
|
|
|
||
|
|
---------------------------------------
|
||
|
|
-- Nonstandard Thread Initialization --
|
||
|
|
---------------------------------------
|
||
|
|
|
||
|
|
procedure pthread_init with Inline_Always;
|
||
|
|
|
||
|
|
-------------------------
|
||
|
|
-- POSIX.1c Section 3 --
|
||
|
|
-------------------------
|
||
|
|
|
||
|
|
function sigwait (set : access sigset_t; sig : access Signal) return int;
|
||
|
|
pragma Import (C, sigwait, "sigwait");
|
||
|
|
|
||
|
|
function pthread_kill (thread : pthread_t; sig : Signal) return int;
|
||
|
|
pragma Import (C, pthread_kill, "pthread_kill");
|
||
|
|
|
||
|
|
function pthread_sigmask
|
||
|
|
(how : int;
|
||
|
|
set : access sigset_t;
|
||
|
|
oset : access sigset_t) return int;
|
||
|
|
pragma Import (C, pthread_sigmask, "pthread_sigmask");
|
||
|
|
|
||
|
|
--------------------------
|
||
|
|
-- POSIX.1c Section 11 --
|
||
|
|
--------------------------
|
||
|
|
|
||
|
|
function pthread_mutexattr_init
|
||
|
|
(attr : access pthread_mutexattr_t) return int;
|
||
|
|
pragma Import (C, pthread_mutexattr_init, "pthread_mutexattr_init");
|
||
|
|
|
||
|
|
function pthread_mutexattr_destroy
|
||
|
|
(attr : access pthread_mutexattr_t) return int;
|
||
|
|
pragma Import (C, pthread_mutexattr_destroy, "pthread_mutexattr_destroy");
|
||
|
|
|
||
|
|
function pthread_mutex_init
|
||
|
|
(mutex : access pthread_mutex_t;
|
||
|
|
attr : access pthread_mutexattr_t) return int;
|
||
|
|
pragma Import (C, pthread_mutex_init, "pthread_mutex_init");
|
||
|
|
|
||
|
|
function pthread_mutex_destroy (mutex : access pthread_mutex_t) return int;
|
||
|
|
pragma Import (C, pthread_mutex_destroy, "pthread_mutex_destroy");
|
||
|
|
|
||
|
|
function pthread_mutex_lock (mutex : access pthread_mutex_t) return int;
|
||
|
|
pragma Import (C, pthread_mutex_lock, "pthread_mutex_lock");
|
||
|
|
|
||
|
|
function pthread_mutex_unlock (mutex : access pthread_mutex_t) return int;
|
||
|
|
pragma Import (C, pthread_mutex_unlock, "pthread_mutex_unlock");
|
||
|
|
|
||
|
|
function pthread_mutex_setprioceiling
|
||
|
|
(mutex : access pthread_mutex_t;
|
||
|
|
prioceiling : int;
|
||
|
|
old_ceiling : access int) return int;
|
||
|
|
pragma Import (C, pthread_mutex_setprioceiling);
|
||
|
|
|
||
|
|
function pthread_condattr_init
|
||
|
|
(attr : access pthread_condattr_t) return int;
|
||
|
|
pragma Import (C, pthread_condattr_init, "pthread_condattr_init");
|
||
|
|
|
||
|
|
function pthread_condattr_destroy
|
||
|
|
(attr : access pthread_condattr_t) return int;
|
||
|
|
pragma Import (C, pthread_condattr_destroy, "pthread_condattr_destroy");
|
||
|
|
|
||
|
|
function pthread_cond_init
|
||
|
|
(cond : access pthread_cond_t;
|
||
|
|
attr : access pthread_condattr_t) return int;
|
||
|
|
pragma Import (C, pthread_cond_init, "pthread_cond_init");
|
||
|
|
|
||
|
|
function pthread_cond_destroy (cond : access pthread_cond_t) return int;
|
||
|
|
pragma Import (C, pthread_cond_destroy, "pthread_cond_destroy");
|
||
|
|
|
||
|
|
function pthread_cond_signal (cond : access pthread_cond_t) return int;
|
||
|
|
pragma Import (C, pthread_cond_signal, "pthread_cond_signal");
|
||
|
|
|
||
|
|
function pthread_cond_wait
|
||
|
|
(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");
|
||
|
|
|
||
|
|
--------------------------
|
||
|
|
-- POSIX.1c Section 13 --
|
||
|
|
--------------------------
|
||
|
|
|
||
|
|
PTHREAD_PRIO_INHERIT : constant := 0;
|
||
|
|
PTHREAD_PRIO_NONE : constant := 1;
|
||
|
|
PTHREAD_PRIO_PROTECT : constant := 2;
|
||
|
|
|
||
|
|
function pthread_mutexattr_setprotocol
|
||
|
|
(attr : access pthread_mutexattr_t;
|
||
|
|
protocol : int) return int;
|
||
|
|
pragma Import (C, pthread_mutexattr_setprotocol);
|
||
|
|
|
||
|
|
function pthread_mutexattr_getprotocol
|
||
|
|
(attr : access pthread_mutexattr_t;
|
||
|
|
protocol : access int) return int;
|
||
|
|
pragma Import (C, pthread_mutexattr_getprotocol);
|
||
|
|
|
||
|
|
function pthread_mutexattr_setprioceiling
|
||
|
|
(attr : access pthread_mutexattr_t;
|
||
|
|
prioceiling : int) return int;
|
||
|
|
pragma Import (C, pthread_mutexattr_setprioceiling);
|
||
|
|
|
||
|
|
function pthread_mutexattr_getprioceiling
|
||
|
|
(attr : access pthread_mutexattr_t;
|
||
|
|
prioceiling : access int) return int;
|
||
|
|
pragma Import (C, pthread_mutexattr_getprioceiling);
|
||
|
|
|
||
|
|
function pthread_mutex_getprioceiling
|
||
|
|
(attr : access pthread_mutex_t;
|
||
|
|
prioceiling : access int) return int;
|
||
|
|
pragma Import (C, pthread_mutex_getprioceiling);
|
||
|
|
|
||
|
|
type pad8 is array (1 .. 8) of int;
|
||
|
|
pragma Convention (C, pad8);
|
||
|
|
|
||
|
|
type struct_sched_param is record
|
||
|
|
sched_priority : int := 0; -- scheduling priority
|
||
|
|
sched_curpriority : int := 0;
|
||
|
|
reserved : pad8 := (others => 0);
|
||
|
|
end record;
|
||
|
|
pragma Convention (C, struct_sched_param);
|
||
|
|
|
||
|
|
function pthread_setschedparam
|
||
|
|
(thread : pthread_t;
|
||
|
|
policy : int;
|
||
|
|
param : access struct_sched_param) return int;
|
||
|
|
pragma Import (C, pthread_setschedparam, "pthread_setschedparam");
|
||
|
|
|
||
|
|
function pthread_getschedparam
|
||
|
|
(thread : pthread_t;
|
||
|
|
policy : access int;
|
||
|
|
param : access struct_sched_param) return int;
|
||
|
|
pragma Import (C, pthread_getschedparam, "pthread_getschedparam");
|
||
|
|
|
||
|
|
function pthread_setschedprio
|
||
|
|
(thread : pthread_t;
|
||
|
|
priority : int) return int;
|
||
|
|
pragma Import (C, pthread_setschedprio);
|
||
|
|
|
||
|
|
function pthread_attr_setschedparam
|
||
|
|
(attr : access pthread_attr_t;
|
||
|
|
param : access struct_sched_param) return int;
|
||
|
|
pragma Import (C, pthread_attr_setschedparam);
|
||
|
|
|
||
|
|
function pthread_attr_setinheritsched
|
||
|
|
(attr : access pthread_attr_t;
|
||
|
|
inheritsched : int) return int;
|
||
|
|
pragma Import (C, pthread_attr_setinheritsched);
|
||
|
|
|
||
|
|
function pthread_attr_setscope
|
||
|
|
(attr : access pthread_attr_t;
|
||
|
|
scope : int) return int;
|
||
|
|
pragma Import (C, pthread_attr_setscope, "pthread_attr_setscope");
|
||
|
|
|
||
|
|
function pthread_attr_setschedpolicy
|
||
|
|
(attr : access pthread_attr_t;
|
||
|
|
policy : int) return int;
|
||
|
|
pragma Import
|
||
|
|
(C, pthread_attr_setschedpolicy, "pthread_attr_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);
|
||
|
|
|
||
|
|
function pthread_attr_setstacksize
|
||
|
|
(attr : access pthread_attr_t;
|
||
|
|
stacksize : size_t) return int;
|
||
|
|
pragma Import (C, pthread_attr_setstacksize);
|
||
|
|
|
||
|
|
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");
|
||
|
|
|
||
|
|
function lwp_self return System.Address;
|
||
|
|
pragma Import (C, lwp_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");
|
||
|
|
|
||
|
|
private
|
||
|
|
|
||
|
|
type sigset_t is array (1 .. 2) of Interfaces.Unsigned_32;
|
||
|
|
pragma Convention (C, sigset_t);
|
||
|
|
|
||
|
|
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);
|
||
|
|
|
||
|
|
type unsigned_long_long_t is mod 2 ** 64;
|
||
|
|
-- Local type only used to get the alignment of this type below
|
||
|
|
|
||
|
|
subtype char_array is Interfaces.C.char_array;
|
||
|
|
|
||
|
|
type pthread_attr_t is record
|
||
|
|
Data : char_array (1 .. OS_Constants.PTHREAD_ATTR_SIZE);
|
||
|
|
end record;
|
||
|
|
pragma Convention (C, pthread_attr_t);
|
||
|
|
for pthread_attr_t'Alignment use Interfaces.C.unsigned_long'Alignment;
|
||
|
|
|
||
|
|
type pthread_condattr_t is record
|
||
|
|
Data : char_array (1 .. OS_Constants.PTHREAD_CONDATTR_SIZE);
|
||
|
|
end record;
|
||
|
|
pragma Convention (C, pthread_condattr_t);
|
||
|
|
for pthread_condattr_t'Alignment use Interfaces.C.int'Alignment;
|
||
|
|
|
||
|
|
type pthread_mutexattr_t is record
|
||
|
|
Data : char_array (1 .. OS_Constants.PTHREAD_MUTEXATTR_SIZE);
|
||
|
|
end record;
|
||
|
|
pragma Convention (C, pthread_mutexattr_t);
|
||
|
|
for pthread_mutexattr_t'Alignment use Interfaces.C.int'Alignment;
|
||
|
|
|
||
|
|
type pthread_mutex_t is record
|
||
|
|
Data : char_array (1 .. OS_Constants.PTHREAD_MUTEX_SIZE);
|
||
|
|
end record;
|
||
|
|
pragma Convention (C, pthread_mutex_t);
|
||
|
|
for pthread_mutex_t'Alignment use Interfaces.C.unsigned_long'Alignment;
|
||
|
|
|
||
|
|
type pthread_cond_t is record
|
||
|
|
Data : char_array (1 .. OS_Constants.PTHREAD_COND_SIZE);
|
||
|
|
end record;
|
||
|
|
pragma Convention (C, pthread_cond_t);
|
||
|
|
for pthread_cond_t'Alignment use unsigned_long_long_t'Alignment;
|
||
|
|
|
||
|
|
type pthread_key_t is new int;
|
||
|
|
|
||
|
|
end System.OS_Interface;
|