1 ------------------------------------------------------------------------------
3 -- GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS --
5 -- S Y S T E M . O S _ I N T E R F A C E --
9 -- Copyright (C) 1997-2001, Florida State University --
11 -- GNARL is free software; you can redistribute it and/or modify it under --
12 -- terms of the GNU General Public License as published by the Free Soft- --
13 -- ware Foundation; either version 2, or (at your option) any later ver- --
14 -- sion. GNARL is distributed in the hope that it will be useful, but WITH- --
15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
16 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
17 -- for more details. You should have received a copy of the GNU General --
18 -- Public License distributed with GNARL; see file COPYING. If not, write --
19 -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
20 -- MA 02111-1307, USA. --
22 -- As a special exception, if other files instantiate generics from this --
23 -- unit, or you link this unit with other files to produce an executable, --
24 -- this unit does not by itself cause the resulting executable to be --
25 -- covered by the GNU General Public License. This exception does not --
26 -- however invalidate any other reasons why the executable file might be --
27 -- covered by the GNU Public License. --
29 -- GNARL was developed by the GNARL team at Florida State University. It is --
30 -- now maintained by Ada Core Technologies Inc. in cooperation with Florida --
31 -- State University (http://www.gnat.com). --
33 ------------------------------------------------------------------------------
35 -- This is the HP-UX version of this package.
37 -- This package encapsulates all direct interfaces to OS services
38 -- that are needed by children of System.
40 -- PLEASE DO NOT add any with-clauses to this package
41 -- or remove the pragma Elaborate_Body.
42 -- It is designed to be a bottom-level (leaf) package.
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
);
136 function intr_attach
(sig
: int
; handler
: isr_address
) return long
;
138 Intr_Attach_Reset
: constant Boolean := True;
139 -- True if intr_attach is reset after an interrupt handler is called
141 function sigaddset
(set
: access sigset_t
; sig
: Signal
) return int
;
142 pragma Import
(C
, sigaddset
, "sigaddset");
144 function sigdelset
(set
: access sigset_t
; sig
: Signal
) return int
;
145 pragma Import
(C
, sigdelset
, "sigdelset");
147 function sigfillset
(set
: access sigset_t
) return int
;
148 pragma Import
(C
, sigfillset
, "sigfillset");
150 function sigismember
(set
: access sigset_t
; sig
: Signal
) return int
;
151 pragma Import
(C
, sigismember
, "sigismember");
153 function sigemptyset
(set
: access sigset_t
) return int
;
154 pragma Import
(C
, sigemptyset
, "sigemptyset");
156 type Signal_Handler
is access procedure (signo
: Signal
);
158 type struct_sigaction
is record
159 sa_handler
: System
.Address
;
163 pragma Convention
(C
, struct_sigaction
);
164 type struct_sigaction_ptr
is access all struct_sigaction
;
166 SA_RESTART
: constant := 16#
40#
;
168 SIG_BLOCK
: constant := 0;
169 SIG_UNBLOCK
: constant := 1;
170 SIG_SETMASK
: constant := 2;
172 SIG_DFL
: constant := 0;
173 SIG_IGN
: constant := 1;
174 SIG_ERR
: constant := -1;
178 act
: struct_sigaction_ptr
;
179 oact
: struct_sigaction_ptr
) return int
;
180 pragma Import
(C
, sigaction
, "sigaction");
186 type timespec
is private;
188 function nanosleep
(rqtp
, rmtp
: access timespec
) return int
;
189 pragma Import
(C
, nanosleep
);
191 type clockid_t
is private;
193 CLOCK_REALTIME
: constant clockid_t
;
195 function Clock_Gettime
196 (Clock_Id
: clockid_t
; Tp
: access timespec
) return int
;
197 pragma Import
(C
, Clock_Gettime
);
199 function To_Duration
(TS
: timespec
) return Duration;
200 pragma Inline
(To_Duration
);
202 function To_Timespec
(D
: Duration) return timespec
;
203 pragma Inline
(To_Timespec
);
205 type struct_timeval
is private;
207 function To_Duration
(TV
: struct_timeval
) return Duration;
208 pragma Inline
(To_Duration
);
210 function To_Timeval
(D
: Duration) return struct_timeval
;
211 pragma Inline
(To_Timeval
);
213 -------------------------
214 -- Priority Scheduling --
215 -------------------------
217 SCHED_FIFO
: constant := 0;
218 SCHED_RR
: constant := 1;
219 SCHED_OTHER
: constant := 2;
225 type pid_t
is private;
227 function kill
(pid
: pid_t
; sig
: Signal
) return int
;
228 pragma Import
(C
, kill
, "kill");
230 function getpid
return pid_t
;
231 pragma Import
(C
, getpid
, "getpid");
237 type Thread_Body
is access
238 function (arg
: System
.Address
) return System
.Address
;
239 type pthread_t
is private;
240 subtype Thread_Id
is pthread_t
;
242 type pthread_mutex_t
is limited private;
243 type pthread_cond_t
is limited private;
244 type pthread_attr_t
is limited private;
245 type pthread_mutexattr_t
is limited private;
246 type pthread_condattr_t
is limited private;
247 type pthread_key_t
is private;
253 function Get_Stack_Base
(thread
: pthread_t
) return Address
;
254 pragma Inline
(Get_Stack_Base
);
255 -- This is a dummy procedure to share some GNULLI files
257 ---------------------------------------
258 -- Nonstandard Thread Initialization --
259 ---------------------------------------
261 procedure pthread_init
;
262 pragma Inline
(pthread_init
);
263 -- This is a dummy procedure to share some GNULLI files
265 -------------------------
266 -- POSIX.1c Section 3 --
267 -------------------------
269 function sigwait
(set
: access sigset_t
) return int
;
270 pragma Import
(C
, sigwait
, "cma_sigwait");
273 (set
: access sigset_t
;
274 sig
: access Signal
) return int
;
275 pragma Inline
(sigwait
);
276 -- DCE_THREADS has a nonstandard sigwait
278 function pthread_kill
280 sig
: Signal
) return int
;
281 pragma Inline
(pthread_kill
);
282 -- DCE_THREADS doesn't have pthread_kill
284 type sigset_t_ptr
is access all sigset_t
;
286 function pthread_sigmask
289 oset
: sigset_t_ptr
) return int
;
290 -- DCE THREADS does not have pthread_sigmask. Instead, it uses
291 -- sigprocmask to do the signal handling when the thread library is
293 pragma Import
(C
, pthread_sigmask
, "sigprocmask");
295 --------------------------
296 -- POSIX.1c Section 11 --
297 --------------------------
299 function pthread_mutexattr_init
300 (attr
: access pthread_mutexattr_t
) return int
;
301 -- DCE_THREADS has a nonstandard pthread_mutexattr_init.
303 function pthread_mutexattr_destroy
304 (attr
: access pthread_mutexattr_t
) return int
;
305 -- DCE_THREADS has a nonstandard pthread_mutexattr_destroy
307 function pthread_mutex_init
308 (mutex
: access pthread_mutex_t
;
309 attr
: access pthread_mutexattr_t
) return int
;
310 -- DCE_THREADS has a nonstandard pthread_mutex_init
312 function pthread_mutex_destroy
(mutex
: access pthread_mutex_t
) return int
;
313 -- DCE_THREADS has a nonstandard pthread_mutex_destroy
315 function pthread_mutex_lock
(mutex
: access pthread_mutex_t
) return int
;
316 pragma Inline
(pthread_mutex_lock
);
317 -- DCE_THREADS has nonstandard pthread_mutex_lock
319 function pthread_mutex_unlock
(mutex
: access pthread_mutex_t
) return int
;
320 pragma Inline
(pthread_mutex_unlock
);
321 -- DCE_THREADS has nonstandard pthread_mutex_lock
323 function pthread_condattr_init
324 (attr
: access pthread_condattr_t
) return int
;
325 -- DCE_THREADS has nonstandard pthread_condattr_init
327 function pthread_condattr_destroy
328 (attr
: access pthread_condattr_t
) return int
;
329 -- DCE_THREADS has nonstandard pthread_condattr_destroy
331 function pthread_cond_init
332 (cond
: access pthread_cond_t
;
333 attr
: access pthread_condattr_t
) return int
;
334 -- DCE_THREADS has nonstandard pthread_cond_init
336 function pthread_cond_destroy
(cond
: access pthread_cond_t
) return int
;
337 -- DCE_THREADS has nonstandard pthread_cond_destroy
339 function pthread_cond_signal
(cond
: access pthread_cond_t
) return int
;
340 pragma Inline
(pthread_cond_signal
);
341 -- DCE_THREADS has nonstandard pthread_cond_signal
343 function pthread_cond_wait
344 (cond
: access pthread_cond_t
;
345 mutex
: access pthread_mutex_t
) return int
;
346 pragma Inline
(pthread_cond_wait
);
347 -- DCE_THREADS has a nonstandard pthread_cond_wait
349 function pthread_cond_timedwait
350 (cond
: access pthread_cond_t
;
351 mutex
: access pthread_mutex_t
;
352 abstime
: access timespec
) return int
;
353 pragma Inline
(pthread_cond_timedwait
);
354 -- DCE_THREADS has a nonstandard pthread_cond_timedwait
356 --------------------------
357 -- POSIX.1c Section 13 --
358 --------------------------
360 type struct_sched_param
is record
361 sched_priority
: int
; -- scheduling priority
364 function pthread_setschedparam
367 param
: access struct_sched_param
) return int
;
368 pragma Inline
(pthread_setschedparam
);
369 -- DCE_THREADS has a nonstandard pthread_setschedparam
371 function sched_yield
return int
;
372 pragma Inline
(sched_yield
);
373 -- DCE_THREADS has a nonstandard sched_yield
375 ---------------------------
376 -- P1003.1c - Section 16 --
377 ---------------------------
379 function pthread_attr_init
(attributes
: access pthread_attr_t
) return int
;
380 pragma Inline
(pthread_attr_init
);
381 -- DCE_THREADS has a nonstandard pthread_attr_init
383 function pthread_attr_destroy
384 (attributes
: access pthread_attr_t
) return int
;
385 pragma Inline
(pthread_attr_destroy
);
386 -- DCE_THREADS has a nonstandard pthread_attr_destroy
388 function pthread_attr_setstacksize
389 (attr
: access pthread_attr_t
;
390 stacksize
: size_t
) return int
;
391 pragma Inline
(pthread_attr_setstacksize
);
392 -- DCE_THREADS has a nonstandard pthread_attr_setstacksize
394 function pthread_create
395 (thread
: access pthread_t
;
396 attributes
: access pthread_attr_t
;
397 start_routine
: Thread_Body
;
398 arg
: System
.Address
) return int
;
399 pragma Inline
(pthread_create
);
400 -- DCE_THREADS has a nonstandard pthread_create
402 procedure pthread_detach
(thread
: access pthread_t
);
403 pragma Import
(C
, pthread_detach
);
405 procedure pthread_exit
(status
: System
.Address
);
406 pragma Import
(C
, pthread_exit
, "pthread_exit");
408 function pthread_self
return pthread_t
;
409 pragma Import
(C
, pthread_self
, "pthread_self");
411 --------------------------
412 -- POSIX.1c Section 17 --
413 --------------------------
415 function pthread_setspecific
416 (key
: pthread_key_t
;
417 value
: System
.Address
) return int
;
418 pragma Inline
(pthread_setspecific
);
419 -- DCE_THREADS has a nonstandard pthread_setspecific
421 function pthread_getspecific
(key
: pthread_key_t
) return System
.Address
;
422 pragma Inline
(pthread_getspecific
);
423 -- DCE_THREADS has a nonstandard pthread_getspecific
425 type destructor_pointer
is access procedure (arg
: System
.Address
);
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
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
;
439 pragma Convention
(C
, sigset_t
);
441 type pid_t
is new int
;
443 type time_t
is new long
;
445 type timespec
is record
449 pragma Convention
(C
, timespec
);
451 type clockid_t
is new int
;
452 CLOCK_REALTIME
: constant clockid_t
:= 1;
454 type struct_timeval
is record
458 pragma Convention
(C
, struct_timeval
);
460 type cma_t_address
is new System
.Address
;
462 type cma_t_handle
is record
463 field1
: cma_t_address
;
464 field2
: Short_Integer;
465 field3
: Short_Integer;
467 for cma_t_handle
'Size use 64;
469 type pthread_attr_t
is new cma_t_handle
;
470 pragma Convention
(C_Pass_By_Copy
, pthread_attr_t
);
472 type pthread_condattr_t
is new cma_t_handle
;
473 pragma Convention
(C_Pass_By_Copy
, pthread_condattr_t
);
475 type pthread_mutexattr_t
is new cma_t_handle
;
476 pragma Convention
(C_Pass_By_Copy
, pthread_mutexattr_t
);
478 type pthread_t
is new cma_t_handle
;
479 pragma Convention
(C_Pass_By_Copy
, pthread_t
);
481 type pthread_mutex_t
is new cma_t_handle
;
482 pragma Convention
(C_Pass_By_Copy
, pthread_mutex_t
);
484 type pthread_cond_t
is new cma_t_handle
;
485 pragma Convention
(C_Pass_By_Copy
, pthread_cond_t
);
487 type pthread_key_t
is new int
;
489 end System
.OS_Interface
;