1 ------------------------------------------------------------------------------
3 -- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS --
5 -- S Y S T E M . O S _ I N T E R F A C E --
9 -- Copyright (C) 1991-1994, Florida State University --
10 -- Copyright (C) 1995-2011, Free Software Foundation, Inc. --
12 -- GNAT is free software; you can redistribute it and/or modify it under --
13 -- terms of the GNU General Public License as published by the Free Soft- --
14 -- ware Foundation; either version 3, or (at your option) any later ver- --
15 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
16 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
17 -- or FITNESS FOR A PARTICULAR PURPOSE. --
19 -- As a special exception under Section 7 of GPL version 3, you are granted --
20 -- additional permissions described in the GCC Runtime Library Exception, --
21 -- version 3.1, as published by the Free Software Foundation. --
23 -- You should have received a copy of the GNU General Public License and --
24 -- a copy of the GCC Runtime Library Exception along with this program; --
25 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
26 -- <http://www.gnu.org/licenses/>. --
28 -- GNARL was developed by the GNARL team at Florida State University. --
29 -- Extensive contributions were provided by Ada Core Technologies, Inc. --
31 ------------------------------------------------------------------------------
33 -- This is the HP-UX version of this package
35 -- This package encapsulates all direct interfaces to OS services
36 -- that are needed by the tasking run-time (libgnarl).
38 -- PLEASE DO NOT add any with-clauses to this package or remove the pragma
39 -- Preelaborate. This package is designed to be a bottom-level (leaf) package.
41 with Ada
.Unchecked_Conversion
;
45 package System
.OS_Interface
is
48 pragma Linker_Options
("-lcma");
50 subtype int
is Interfaces
.C
.int
;
51 subtype short
is Interfaces
.C
.short
;
52 subtype long
is Interfaces
.C
.long
;
53 subtype unsigned
is Interfaces
.C
.unsigned
;
54 subtype unsigned_short
is Interfaces
.C
.unsigned_short
;
55 subtype unsigned_long
is Interfaces
.C
.unsigned_long
;
56 subtype unsigned_char
is Interfaces
.C
.unsigned_char
;
57 subtype plain_char
is Interfaces
.C
.plain_char
;
58 subtype size_t
is Interfaces
.C
.size_t
;
64 function errno
return int
;
65 pragma Import
(C
, errno
, "__get_errno");
67 EAGAIN
: constant := 11;
68 EINTR
: constant := 4;
69 EINVAL
: constant := 22;
70 ENOMEM
: constant := 12;
71 ETIME
: constant := 52;
72 ETIMEDOUT
: constant := 238;
74 FUNC_ERR
: constant := -1;
80 Max_Interrupt
: constant := 44;
81 type Signal
is new int
range 0 .. Max_Interrupt
;
82 for Signal
'Size use int
'Size;
84 SIGHUP
: constant := 1; -- hangup
85 SIGINT
: constant := 2; -- interrupt (rubout)
86 SIGQUIT
: constant := 3; -- quit (ASCD FS)
87 SIGILL
: constant := 4; -- illegal instruction (not reset)
88 SIGTRAP
: constant := 5; -- trace trap (not reset)
89 SIGIOT
: constant := 6; -- IOT instruction
90 SIGABRT
: constant := 6; -- used by abort, replace SIGIOT in the future
91 SIGEMT
: constant := 7; -- EMT instruction
92 SIGFPE
: constant := 8; -- floating point exception
93 SIGKILL
: constant := 9; -- kill (cannot be caught or ignored)
94 SIGBUS
: constant := 10; -- bus error
95 SIGSEGV
: constant := 11; -- segmentation violation
96 SIGSYS
: constant := 12; -- bad argument to system call
97 SIGPIPE
: constant := 13; -- write on a pipe with no one to read it
98 SIGALRM
: constant := 14; -- alarm clock
99 SIGTERM
: constant := 15; -- software termination signal from kill
100 SIGUSR1
: constant := 16; -- user defined signal 1
101 SIGUSR2
: constant := 17; -- user defined signal 2
102 SIGCLD
: constant := 18; -- alias for SIGCHLD
103 SIGCHLD
: constant := 18; -- child status change
104 SIGPWR
: constant := 19; -- power-fail restart
105 SIGVTALRM
: constant := 20; -- virtual timer alarm
106 SIGPROF
: constant := 21; -- profiling timer alarm
107 SIGIO
: constant := 22; -- asynchronous I/O
108 SIGPOLL
: constant := 22; -- pollable event occurred
109 SIGWINCH
: constant := 23; -- window size change
110 SIGSTOP
: constant := 24; -- stop (cannot be caught or ignored)
111 SIGTSTP
: constant := 25; -- user stop requested from tty
112 SIGCONT
: constant := 26; -- stopped process has been continued
113 SIGTTIN
: constant := 27; -- background tty read attempted
114 SIGTTOU
: constant := 28; -- background tty write attempted
115 SIGURG
: constant := 29; -- urgent condition on IO channel
116 SIGLOST
: constant := 30; -- remote lock lost (NFS)
117 SIGDIL
: constant := 32; -- DIL signal
118 SIGXCPU
: constant := 33; -- CPU time limit exceeded (setrlimit)
119 SIGXFSZ
: constant := 34; -- file size limit exceeded (setrlimit)
121 SIGADAABORT
: constant := SIGABRT
;
122 -- Note: on other targets, we usually use SIGABRT, but on HP/UX, it
123 -- appears that SIGABRT can't be used in sigwait(), so we use SIGTERM.
125 type Signal_Set
is array (Natural range <>) of Signal
;
127 Unmasked
: constant Signal_Set
:=
128 (SIGBUS
, SIGTRAP
, SIGTTIN
, SIGTTOU
, SIGTSTP
);
130 Reserved
: constant Signal_Set
:= (SIGKILL
, SIGSTOP
);
132 type sigset_t
is private;
134 type isr_address
is access procedure (sig
: int
);
135 pragma Convention
(C
, isr_address
);
137 function intr_attach
(sig
: int
; handler
: isr_address
) return long
;
139 Intr_Attach_Reset
: constant Boolean := True;
140 -- True if intr_attach is reset after an interrupt handler is called
142 function sigaddset
(set
: access sigset_t
; sig
: Signal
) return int
;
143 pragma Import
(C
, sigaddset
, "sigaddset");
145 function sigdelset
(set
: access sigset_t
; sig
: Signal
) return int
;
146 pragma Import
(C
, sigdelset
, "sigdelset");
148 function sigfillset
(set
: access sigset_t
) return int
;
149 pragma Import
(C
, sigfillset
, "sigfillset");
151 function sigismember
(set
: access sigset_t
; sig
: Signal
) return int
;
152 pragma Import
(C
, sigismember
, "sigismember");
154 function sigemptyset
(set
: access sigset_t
) return int
;
155 pragma Import
(C
, sigemptyset
, "sigemptyset");
157 type Signal_Handler
is access procedure (signo
: Signal
);
159 type struct_sigaction
is record
160 sa_handler
: System
.Address
;
164 pragma Convention
(C
, struct_sigaction
);
165 type struct_sigaction_ptr
is access all struct_sigaction
;
167 SA_RESTART
: constant := 16#
40#
;
168 SA_SIGINFO
: constant := 16#
10#
;
169 SA_ONSTACK
: constant := 16#
01#
;
171 SIG_BLOCK
: constant := 0;
172 SIG_UNBLOCK
: constant := 1;
173 SIG_SETMASK
: constant := 2;
175 SIG_DFL
: constant := 0;
176 SIG_IGN
: constant := 1;
177 SIG_ERR
: constant := -1;
181 act
: struct_sigaction_ptr
;
182 oact
: struct_sigaction_ptr
) return int
;
183 pragma Import
(C
, sigaction
, "sigaction");
189 type timespec
is private;
191 function nanosleep
(rqtp
, rmtp
: access timespec
) return int
;
192 pragma Import
(C
, nanosleep
);
194 type clockid_t
is new int
;
196 function Clock_Gettime
197 (Clock_Id
: clockid_t
; Tp
: access timespec
) return int
;
198 pragma Import
(C
, Clock_Gettime
);
200 function To_Duration
(TS
: timespec
) return Duration;
201 pragma Inline
(To_Duration
);
203 function To_Timespec
(D
: Duration) return timespec
;
204 pragma Inline
(To_Timespec
);
206 -------------------------
207 -- Priority Scheduling --
208 -------------------------
210 SCHED_FIFO
: constant := 0;
211 SCHED_RR
: constant := 1;
212 SCHED_OTHER
: constant := 2;
218 type pid_t
is private;
220 function kill
(pid
: pid_t
; sig
: Signal
) return int
;
221 pragma Import
(C
, kill
, "kill");
223 function getpid
return pid_t
;
224 pragma Import
(C
, getpid
, "getpid");
230 type Thread_Body
is access
231 function (arg
: System
.Address
) return System
.Address
;
232 pragma Convention
(C
, Thread_Body
);
234 function Thread_Body_Access
is new
235 Ada
.Unchecked_Conversion
(System
.Address
, Thread_Body
);
237 type pthread_t
is private;
238 subtype Thread_Id
is pthread_t
;
240 type pthread_mutex_t
is limited private;
241 type pthread_cond_t
is limited private;
242 type pthread_attr_t
is limited private;
243 type pthread_mutexattr_t
is limited private;
244 type pthread_condattr_t
is limited private;
245 type pthread_key_t
is private;
251 function Get_Stack_Base
(thread
: pthread_t
) return Address
;
252 pragma Inline
(Get_Stack_Base
);
253 -- This is a dummy procedure to share some GNULLI files
255 ---------------------------------------
256 -- Nonstandard Thread Initialization --
257 ---------------------------------------
259 procedure pthread_init
;
260 pragma Inline
(pthread_init
);
261 -- This is a dummy procedure to share some GNULLI files
263 -------------------------
264 -- POSIX.1c Section 3 --
265 -------------------------
267 function sigwait
(set
: access sigset_t
) return int
;
268 pragma Import
(C
, sigwait
, "cma_sigwait");
271 (set
: access sigset_t
;
272 sig
: access Signal
) return int
;
273 pragma Inline
(sigwait
);
274 -- DCE_THREADS has a nonstandard sigwait
276 function pthread_kill
278 sig
: Signal
) return int
;
279 pragma Inline
(pthread_kill
);
280 -- DCE_THREADS doesn't have pthread_kill
282 function pthread_sigmask
284 set
: access sigset_t
;
285 oset
: access sigset_t
) return int
;
286 -- DCE THREADS does not have pthread_sigmask. Instead, it uses sigprocmask
287 -- to do the signal handling when the thread library is sucked in.
288 pragma Import
(C
, pthread_sigmask
, "sigprocmask");
290 --------------------------
291 -- POSIX.1c Section 11 --
292 --------------------------
294 function pthread_mutexattr_init
295 (attr
: access pthread_mutexattr_t
) return int
;
296 -- DCE_THREADS has a nonstandard pthread_mutexattr_init
298 function pthread_mutexattr_destroy
299 (attr
: access pthread_mutexattr_t
) return int
;
300 -- DCE_THREADS has a nonstandard pthread_mutexattr_destroy
302 function pthread_mutex_init
303 (mutex
: access pthread_mutex_t
;
304 attr
: access pthread_mutexattr_t
) return int
;
305 -- DCE_THREADS has a nonstandard pthread_mutex_init
307 function pthread_mutex_destroy
(mutex
: access pthread_mutex_t
) return int
;
308 -- DCE_THREADS has a nonstandard pthread_mutex_destroy
310 function pthread_mutex_lock
(mutex
: access pthread_mutex_t
) return int
;
311 pragma Inline
(pthread_mutex_lock
);
312 -- DCE_THREADS has nonstandard pthread_mutex_lock
314 function pthread_mutex_unlock
(mutex
: access pthread_mutex_t
) return int
;
315 pragma Inline
(pthread_mutex_unlock
);
316 -- DCE_THREADS has nonstandard pthread_mutex_lock
318 function pthread_condattr_init
319 (attr
: access pthread_condattr_t
) return int
;
320 -- DCE_THREADS has nonstandard pthread_condattr_init
322 function pthread_condattr_destroy
323 (attr
: access pthread_condattr_t
) return int
;
324 -- DCE_THREADS has nonstandard pthread_condattr_destroy
326 function pthread_cond_init
327 (cond
: access pthread_cond_t
;
328 attr
: access pthread_condattr_t
) return int
;
329 -- DCE_THREADS has nonstandard pthread_cond_init
331 function pthread_cond_destroy
(cond
: access pthread_cond_t
) return int
;
332 -- DCE_THREADS has nonstandard pthread_cond_destroy
334 function pthread_cond_signal
(cond
: access pthread_cond_t
) return int
;
335 pragma Inline
(pthread_cond_signal
);
336 -- DCE_THREADS has nonstandard pthread_cond_signal
338 function pthread_cond_wait
339 (cond
: access pthread_cond_t
;
340 mutex
: access pthread_mutex_t
) return int
;
341 pragma Inline
(pthread_cond_wait
);
342 -- DCE_THREADS has a nonstandard pthread_cond_wait
344 function pthread_cond_timedwait
345 (cond
: access pthread_cond_t
;
346 mutex
: access pthread_mutex_t
;
347 abstime
: access timespec
) return int
;
348 pragma Inline
(pthread_cond_timedwait
);
349 -- DCE_THREADS has a nonstandard pthread_cond_timedwait
351 --------------------------
352 -- POSIX.1c Section 13 --
353 --------------------------
355 type struct_sched_param
is record
356 sched_priority
: int
; -- scheduling priority
359 function pthread_setschedparam
362 param
: access struct_sched_param
) return int
;
363 pragma Inline
(pthread_setschedparam
);
364 -- DCE_THREADS has a nonstandard pthread_setschedparam
366 function sched_yield
return int
;
367 pragma Inline
(sched_yield
);
368 -- DCE_THREADS has a nonstandard sched_yield
370 ---------------------------
371 -- P1003.1c - Section 16 --
372 ---------------------------
374 function pthread_attr_init
(attributes
: access pthread_attr_t
) return int
;
375 pragma Inline
(pthread_attr_init
);
376 -- DCE_THREADS has a nonstandard pthread_attr_init
378 function pthread_attr_destroy
379 (attributes
: access pthread_attr_t
) return int
;
380 pragma Inline
(pthread_attr_destroy
);
381 -- DCE_THREADS has a nonstandard pthread_attr_destroy
383 function pthread_attr_setstacksize
384 (attr
: access pthread_attr_t
;
385 stacksize
: size_t
) return int
;
386 pragma Inline
(pthread_attr_setstacksize
);
387 -- DCE_THREADS has a nonstandard pthread_attr_setstacksize
389 function pthread_create
390 (thread
: access pthread_t
;
391 attributes
: access pthread_attr_t
;
392 start_routine
: Thread_Body
;
393 arg
: System
.Address
) return int
;
394 pragma Inline
(pthread_create
);
395 -- DCE_THREADS has a nonstandard pthread_create
397 procedure pthread_detach
(thread
: access pthread_t
);
398 pragma Import
(C
, pthread_detach
);
400 procedure pthread_exit
(status
: System
.Address
);
401 pragma Import
(C
, pthread_exit
, "pthread_exit");
403 function pthread_self
return pthread_t
;
404 pragma Import
(C
, pthread_self
, "pthread_self");
406 --------------------------
407 -- POSIX.1c Section 17 --
408 --------------------------
410 function pthread_setspecific
411 (key
: pthread_key_t
;
412 value
: System
.Address
) return int
;
413 pragma Inline
(pthread_setspecific
);
414 -- DCE_THREADS has a nonstandard pthread_setspecific
416 function pthread_getspecific
(key
: pthread_key_t
) return System
.Address
;
417 pragma Inline
(pthread_getspecific
);
418 -- DCE_THREADS has a nonstandard pthread_getspecific
420 type destructor_pointer
is access procedure (arg
: System
.Address
);
421 pragma Convention
(C
, destructor_pointer
);
423 function pthread_key_create
424 (key
: access pthread_key_t
;
425 destructor
: destructor_pointer
) return int
;
426 pragma Inline
(pthread_key_create
);
427 -- DCE_THREADS has a nonstandard pthread_key_create
431 type array_type_1
is array (Integer range 0 .. 7) of unsigned_long
;
432 type sigset_t
is record
433 X_X_sigbits
: array_type_1
;
435 pragma Convention
(C
, sigset_t
);
437 type pid_t
is new int
;
439 type time_t
is new long
;
441 type timespec
is record
445 pragma Convention
(C
, timespec
);
447 type clockid_t
is new int
;
448 CLOCK_REALTIME
: constant clockid_t
:= 1;
450 type cma_t_address
is new System
.Address
;
452 type cma_t_handle
is record
453 field1
: cma_t_address
;
454 field2
: Short_Integer;
455 field3
: Short_Integer;
457 for cma_t_handle
'Size use 64;
459 type pthread_attr_t
is new cma_t_handle
;
460 pragma Convention
(C_Pass_By_Copy
, pthread_attr_t
);
462 type pthread_condattr_t
is new cma_t_handle
;
463 pragma Convention
(C_Pass_By_Copy
, pthread_condattr_t
);
465 type pthread_mutexattr_t
is new cma_t_handle
;
466 pragma Convention
(C_Pass_By_Copy
, pthread_mutexattr_t
);
468 type pthread_t
is new cma_t_handle
;
469 pragma Convention
(C_Pass_By_Copy
, pthread_t
);
471 type pthread_mutex_t
is new cma_t_handle
;
472 pragma Convention
(C_Pass_By_Copy
, pthread_mutex_t
);
474 type pthread_cond_t
is new cma_t_handle
;
475 pragma Convention
(C_Pass_By_Copy
, pthread_cond_t
);
477 type pthread_key_t
is new int
;
479 end System
.OS_Interface
;