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) 1995-2014, 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 a GNU/Linux (GNU/LinuxThreads) 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
;
44 with System
.OS_Constants
;
46 package System
.OS_Interface
is
49 pragma Linker_Options
("-lpthread");
51 subtype int
is Interfaces
.C
.int
;
52 subtype char
is Interfaces
.C
.char
;
53 subtype short
is Interfaces
.C
.short
;
54 subtype long
is Interfaces
.C
.long
;
55 subtype unsigned
is Interfaces
.C
.unsigned
;
56 subtype unsigned_short
is Interfaces
.C
.unsigned_short
;
57 subtype unsigned_long
is Interfaces
.C
.unsigned_long
;
58 subtype unsigned_char
is Interfaces
.C
.unsigned_char
;
59 subtype plain_char
is Interfaces
.C
.plain_char
;
60 subtype size_t
is Interfaces
.C
.size_t
;
66 function errno
return int
;
67 pragma Import
(C
, errno
, "__get_errno");
69 EAGAIN
: constant := System
.Linux
.EAGAIN
;
70 EINTR
: constant := System
.Linux
.EINTR
;
71 EINVAL
: constant := System
.Linux
.EINVAL
;
72 ENOMEM
: constant := System
.Linux
.ENOMEM
;
73 EPERM
: constant := System
.Linux
.EPERM
;
74 ETIMEDOUT
: constant := System
.Linux
.ETIMEDOUT
;
80 Max_Interrupt
: constant := 63;
81 type Signal
is new int
range 0 .. Max_Interrupt
;
82 for Signal
'Size use int
'Size;
84 SIGHUP
: constant := System
.Linux
.SIGHUP
;
85 SIGINT
: constant := System
.Linux
.SIGINT
;
86 SIGQUIT
: constant := System
.Linux
.SIGQUIT
;
87 SIGILL
: constant := System
.Linux
.SIGILL
;
88 SIGTRAP
: constant := System
.Linux
.SIGTRAP
;
89 SIGIOT
: constant := System
.Linux
.SIGIOT
;
90 SIGABRT
: constant := System
.Linux
.SIGABRT
;
91 SIGFPE
: constant := System
.Linux
.SIGFPE
;
92 SIGKILL
: constant := System
.Linux
.SIGKILL
;
93 SIGBUS
: constant := System
.Linux
.SIGBUS
;
94 SIGSEGV
: constant := System
.Linux
.SIGSEGV
;
95 SIGPIPE
: constant := System
.Linux
.SIGPIPE
;
96 SIGALRM
: constant := System
.Linux
.SIGALRM
;
97 SIGTERM
: constant := System
.Linux
.SIGTERM
;
98 SIGUSR1
: constant := System
.Linux
.SIGUSR1
;
99 SIGUSR2
: constant := System
.Linux
.SIGUSR2
;
100 SIGCLD
: constant := System
.Linux
.SIGCLD
;
101 SIGCHLD
: constant := System
.Linux
.SIGCHLD
;
102 SIGPWR
: constant := System
.Linux
.SIGPWR
;
103 SIGWINCH
: constant := System
.Linux
.SIGWINCH
;
104 SIGURG
: constant := System
.Linux
.SIGURG
;
105 SIGPOLL
: constant := System
.Linux
.SIGPOLL
;
106 SIGIO
: constant := System
.Linux
.SIGIO
;
107 SIGLOST
: constant := System
.Linux
.SIGLOST
;
108 SIGSTOP
: constant := System
.Linux
.SIGSTOP
;
109 SIGTSTP
: constant := System
.Linux
.SIGTSTP
;
110 SIGCONT
: constant := System
.Linux
.SIGCONT
;
111 SIGTTIN
: constant := System
.Linux
.SIGTTIN
;
112 SIGTTOU
: constant := System
.Linux
.SIGTTOU
;
113 SIGVTALRM
: constant := System
.Linux
.SIGVTALRM
;
114 SIGPROF
: constant := System
.Linux
.SIGPROF
;
115 SIGXCPU
: constant := System
.Linux
.SIGXCPU
;
116 SIGXFSZ
: constant := System
.Linux
.SIGXFSZ
;
117 SIGUNUSED
: constant := System
.Linux
.SIGUNUSED
;
118 SIGSTKFLT
: constant := System
.Linux
.SIGSTKFLT
;
119 SIGLTHRRES
: constant := System
.Linux
.SIGLTHRRES
;
120 SIGLTHRCAN
: constant := System
.Linux
.SIGLTHRCAN
;
121 SIGLTHRDBG
: constant := System
.Linux
.SIGLTHRDBG
;
123 SIGADAABORT
: constant := SIGABRT
;
124 -- Change this to use another signal for task abort. SIGTERM might be a
127 type Signal_Set
is array (Natural range <>) of Signal
;
129 Unmasked
: constant Signal_Set
:= (
131 -- To enable debugging on multithreaded applications, mark SIGTRAP to
136 SIGTTIN
, SIGTTOU
, SIGTSTP
,
137 -- Keep these three signals unmasked so that background processes and IO
138 -- behaves as normal "C" applications
141 -- To avoid confusing the profiler
144 -- These two signals actually can't be masked (POSIX won't allow it)
146 SIGLTHRRES
, SIGLTHRCAN
, SIGLTHRDBG
);
147 -- These three signals are used by GNU/LinuxThreads starting from glibc
150 Reserved
: constant Signal_Set
:= (SIGVTALRM
, SIGUNUSED
);
151 -- Not clear why these two signals are reserved. Perhaps they are not
152 -- supported by this version of GNU/Linux ???
154 type sigset_t
is private;
156 function sigaddset
(set
: access sigset_t
; sig
: Signal
) return int
;
157 pragma Import
(C
, sigaddset
, "sigaddset");
159 function sigdelset
(set
: access sigset_t
; sig
: Signal
) return int
;
160 pragma Import
(C
, sigdelset
, "sigdelset");
162 function sigfillset
(set
: access sigset_t
) return int
;
163 pragma Import
(C
, sigfillset
, "sigfillset");
165 function sigismember
(set
: access sigset_t
; sig
: Signal
) return int
;
166 pragma Import
(C
, sigismember
, "sigismember");
168 function sigemptyset
(set
: access sigset_t
) return int
;
169 pragma Import
(C
, sigemptyset
, "sigemptyset");
171 type union_type_3
is new String (1 .. 116);
172 type siginfo_t
is record
176 X_data
: union_type_3
;
178 pragma Convention
(C
, siginfo_t
);
180 type struct_sigaction
is record
181 sa_handler
: System
.Address
;
183 sa_flags
: Interfaces
.C
.unsigned_long
;
184 sa_restorer
: System
.Address
;
186 pragma Convention
(C
, struct_sigaction
);
188 type struct_sigaction_ptr
is access all struct_sigaction
;
190 type Machine_State
is record
198 type Machine_State_Ptr
is access all Machine_State
;
200 SA_SIGINFO
: constant := System
.Linux
.SA_SIGINFO
;
201 SA_ONSTACK
: constant := System
.Linux
.SA_ONSTACK
;
203 SIG_BLOCK
: constant := 0;
204 SIG_UNBLOCK
: constant := 1;
205 SIG_SETMASK
: constant := 2;
207 SIG_DFL
: constant := 0;
208 SIG_IGN
: constant := 1;
212 act
: struct_sigaction_ptr
;
213 oact
: struct_sigaction_ptr
) return int
;
214 pragma Import
(C
, sigaction
, "sigaction");
220 subtype time_t
is System
.Linux
.time_t
;
221 subtype timespec
is System
.Linux
.timespec
;
222 subtype timeval
is System
.Linux
.timeval
;
224 function To_Duration
(TS
: timespec
) return Duration;
225 pragma Inline
(To_Duration
);
227 function To_Timespec
(D
: Duration) return timespec
;
228 pragma Inline
(To_Timespec
);
230 function sysconf
(name
: int
) return long
;
231 pragma Import
(C
, sysconf
);
233 SC_CLK_TCK
: constant := 2;
234 SC_NPROCESSORS_ONLN
: constant := 84;
236 -------------------------
237 -- Priority Scheduling --
238 -------------------------
240 SCHED_OTHER
: constant := 0;
241 SCHED_FIFO
: constant := 1;
242 SCHED_RR
: constant := 2;
244 function To_Target_Priority
245 (Prio
: System
.Any_Priority
) return Interfaces
.C
.int
;
246 -- Maps System.Any_Priority to a POSIX priority
252 type pid_t
is private;
254 function kill
(pid
: pid_t
; sig
: Signal
) return int
;
255 pragma Import
(C
, kill
, "kill");
257 function getpid
return pid_t
;
258 pragma Import
(C
, getpid
, "getpid");
260 PR_SET_NAME
: constant := 15;
264 arg2
, arg3
, arg4
, arg5
: unsigned_long
:= 0) return int
;
265 pragma Import
(C
, prctl
);
271 type Thread_Body
is access
272 function (arg
: System
.Address
) return System
.Address
;
273 pragma Convention
(C
, Thread_Body
);
275 function Thread_Body_Access
is new
276 Ada
.Unchecked_Conversion
(System
.Address
, Thread_Body
);
278 type pthread_t
is new unsigned_long
;
279 subtype Thread_Id
is pthread_t
;
281 function To_pthread_t
is
282 new Ada
.Unchecked_Conversion
(unsigned_long
, pthread_t
);
284 type pthread_mutex_t
is limited private;
285 type pthread_rwlock_t
is limited private;
286 type pthread_cond_t
is limited private;
287 type pthread_attr_t
is limited private;
288 type pthread_mutexattr_t
is limited private;
289 type pthread_rwlockattr_t
is limited private;
290 type pthread_condattr_t
is limited private;
291 type pthread_key_t
is private;
293 PTHREAD_CREATE_DETACHED
: constant := 1;
299 type stack_t
is record
300 ss_sp
: System
.Address
;
304 pragma Convention
(C
, stack_t
);
307 (ss
: not null access stack_t
;
308 oss
: access stack_t
) return int
;
309 pragma Import
(C
, sigaltstack
, "sigaltstack");
311 Alternate_Stack
: aliased System
.Address
;
312 pragma Import
(C
, Alternate_Stack
, "__gnat_alternate_stack");
313 -- The alternate signal stack for stack overflows
315 Alternate_Stack_Size
: constant := 16 * 1024;
316 -- This must be in keeping with init.c:__gnat_alternate_stack
318 function Get_Stack_Base
(thread
: pthread_t
) return Address
;
319 pragma Inline
(Get_Stack_Base
);
320 -- This is a dummy procedure to share some GNULLI files
322 ---------------------------------------
323 -- Nonstandard Thread Initialization --
324 ---------------------------------------
326 procedure pthread_init
;
327 pragma Inline
(pthread_init
);
328 -- This is a dummy procedure to share some GNULLI files
330 -------------------------
331 -- POSIX.1c Section 3 --
332 -------------------------
334 function sigwait
(set
: access sigset_t
; sig
: access Signal
) return int
;
335 pragma Import
(C
, sigwait
, "sigwait");
337 function pthread_kill
(thread
: pthread_t
; sig
: Signal
) return int
;
338 pragma Import
(C
, pthread_kill
, "pthread_kill");
340 function pthread_sigmask
342 set
: access sigset_t
;
343 oset
: access sigset_t
) return int
;
344 pragma Import
(C
, pthread_sigmask
, "pthread_sigmask");
346 --------------------------
347 -- POSIX.1c Section 11 --
348 --------------------------
350 function pthread_mutexattr_init
351 (attr
: access pthread_mutexattr_t
) return int
;
352 pragma Import
(C
, pthread_mutexattr_init
, "pthread_mutexattr_init");
354 function pthread_mutexattr_destroy
355 (attr
: access pthread_mutexattr_t
) return int
;
356 pragma Import
(C
, pthread_mutexattr_destroy
, "pthread_mutexattr_destroy");
358 function pthread_mutex_init
359 (mutex
: access pthread_mutex_t
;
360 attr
: access pthread_mutexattr_t
) return int
;
361 pragma Import
(C
, pthread_mutex_init
, "pthread_mutex_init");
363 function pthread_mutex_destroy
(mutex
: access pthread_mutex_t
) return int
;
364 pragma Import
(C
, pthread_mutex_destroy
, "pthread_mutex_destroy");
366 function pthread_mutex_lock
(mutex
: access pthread_mutex_t
) return int
;
367 pragma Import
(C
, pthread_mutex_lock
, "pthread_mutex_lock");
369 function pthread_mutex_unlock
(mutex
: access pthread_mutex_t
) return int
;
370 pragma Import
(C
, pthread_mutex_unlock
, "pthread_mutex_unlock");
372 function pthread_rwlockattr_init
373 (attr
: access pthread_rwlockattr_t
) return int
;
374 pragma Import
(C
, pthread_rwlockattr_init
, "pthread_rwlockattr_init");
376 function pthread_rwlockattr_destroy
377 (attr
: access pthread_rwlockattr_t
) return int
;
378 pragma Import
(C
, pthread_rwlockattr_destroy
, "pthread_rwlockattr_destroy");
380 PTHREAD_RWLOCK_PREFER_READER_NP
: constant := 0;
381 PTHREAD_RWLOCK_PREFER_WRITER_NP
: constant := 1;
382 PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP
: constant := 2;
384 function pthread_rwlockattr_setkind_np
385 (attr
: access pthread_rwlockattr_t
;
386 pref
: int
) return int
;
388 (C
, pthread_rwlockattr_setkind_np
, "pthread_rwlockattr_setkind_np");
390 function pthread_rwlock_init
391 (mutex
: access pthread_rwlock_t
;
392 attr
: access pthread_rwlockattr_t
) return int
;
393 pragma Import
(C
, pthread_rwlock_init
, "pthread_rwlock_init");
395 function pthread_rwlock_destroy
396 (mutex
: access pthread_rwlock_t
) return int
;
397 pragma Import
(C
, pthread_rwlock_destroy
, "pthread_rwlock_destroy");
399 function pthread_rwlock_rdlock
(mutex
: access pthread_rwlock_t
) return int
;
400 pragma Import
(C
, pthread_rwlock_rdlock
, "pthread_rwlock_rdlock");
402 function pthread_rwlock_wrlock
(mutex
: access pthread_rwlock_t
) return int
;
403 pragma Import
(C
, pthread_rwlock_wrlock
, "pthread_rwlock_wrlock");
405 function pthread_rwlock_unlock
(mutex
: access pthread_rwlock_t
) return int
;
406 pragma Import
(C
, pthread_rwlock_unlock
, "pthread_rwlock_unlock");
408 function pthread_condattr_init
409 (attr
: access pthread_condattr_t
) return int
;
410 pragma Import
(C
, pthread_condattr_init
, "pthread_condattr_init");
412 function pthread_condattr_destroy
413 (attr
: access pthread_condattr_t
) return int
;
414 pragma Import
(C
, pthread_condattr_destroy
, "pthread_condattr_destroy");
416 function pthread_cond_init
417 (cond
: access pthread_cond_t
;
418 attr
: access pthread_condattr_t
) return int
;
419 pragma Import
(C
, pthread_cond_init
, "pthread_cond_init");
421 function pthread_cond_destroy
(cond
: access pthread_cond_t
) return int
;
422 pragma Import
(C
, pthread_cond_destroy
, "pthread_cond_destroy");
424 function pthread_cond_signal
(cond
: access pthread_cond_t
) return int
;
425 pragma Import
(C
, pthread_cond_signal
, "pthread_cond_signal");
427 function pthread_cond_wait
428 (cond
: access pthread_cond_t
;
429 mutex
: access pthread_mutex_t
) return int
;
430 pragma Import
(C
, pthread_cond_wait
, "pthread_cond_wait");
432 function pthread_cond_timedwait
433 (cond
: access pthread_cond_t
;
434 mutex
: access pthread_mutex_t
;
435 abstime
: access timespec
) return int
;
436 pragma Import
(C
, pthread_cond_timedwait
, "pthread_cond_timedwait");
438 --------------------------
439 -- POSIX.1c Section 13 --
440 --------------------------
442 type struct_sched_param
is record
443 sched_priority
: int
; -- scheduling priority
445 pragma Convention
(C
, struct_sched_param
);
447 function pthread_setschedparam
450 param
: access struct_sched_param
) return int
;
451 pragma Import
(C
, pthread_setschedparam
, "pthread_setschedparam");
453 function pthread_attr_setschedpolicy
454 (attr
: access pthread_attr_t
;
455 policy
: int
) return int
;
457 (C
, pthread_attr_setschedpolicy
, "pthread_attr_setschedpolicy");
459 function sched_yield
return int
;
460 pragma Import
(C
, sched_yield
, "sched_yield");
462 ---------------------------
463 -- P1003.1c - Section 16 --
464 ---------------------------
466 function pthread_attr_init
467 (attributes
: access pthread_attr_t
) return int
;
468 pragma Import
(C
, pthread_attr_init
, "pthread_attr_init");
470 function pthread_attr_destroy
471 (attributes
: access pthread_attr_t
) return int
;
472 pragma Import
(C
, pthread_attr_destroy
, "pthread_attr_destroy");
474 function pthread_attr_setdetachstate
475 (attr
: access pthread_attr_t
;
476 detachstate
: int
) return int
;
478 (C
, pthread_attr_setdetachstate
, "pthread_attr_setdetachstate");
480 function pthread_attr_setstacksize
481 (attr
: access pthread_attr_t
;
482 stacksize
: size_t
) return int
;
483 pragma Import
(C
, pthread_attr_setstacksize
, "pthread_attr_setstacksize");
485 function pthread_create
486 (thread
: access pthread_t
;
487 attributes
: access pthread_attr_t
;
488 start_routine
: Thread_Body
;
489 arg
: System
.Address
) return int
;
490 pragma Import
(C
, pthread_create
, "pthread_create");
492 procedure pthread_exit
(status
: System
.Address
);
493 pragma Import
(C
, pthread_exit
, "pthread_exit");
495 function pthread_self
return pthread_t
;
496 pragma Import
(C
, pthread_self
, "pthread_self");
498 function lwp_self
return System
.Address
;
499 pragma Import
(C
, lwp_self
, "__gnat_lwp_self");
501 --------------------------
502 -- POSIX.1c Section 17 --
503 --------------------------
505 function pthread_setspecific
506 (key
: pthread_key_t
;
507 value
: System
.Address
) return int
;
508 pragma Import
(C
, pthread_setspecific
, "pthread_setspecific");
510 function pthread_getspecific
(key
: pthread_key_t
) return System
.Address
;
511 pragma Import
(C
, pthread_getspecific
, "pthread_getspecific");
513 type destructor_pointer
is access procedure (arg
: System
.Address
);
514 pragma Convention
(C
, destructor_pointer
);
516 function pthread_key_create
517 (key
: access pthread_key_t
;
518 destructor
: destructor_pointer
) return int
;
519 pragma Import
(C
, pthread_key_create
, "pthread_key_create");
521 CPU_SETSIZE
: constant := 1_024
;
522 -- Size of the cpu_set_t mask on most linux systems (SUSE 11 uses 4_096).
523 -- This is kept for backward compatibility (System.Task_Info uses it), but
524 -- the run-time library does no longer rely on static masks, using
525 -- dynamically allocated masks instead.
527 type bit_field
is array (1 .. CPU_SETSIZE
) of Boolean;
528 for bit_field
'Size use CPU_SETSIZE
;
529 pragma Pack
(bit_field
);
530 pragma Convention
(C
, bit_field
);
532 type cpu_set_t
is record
535 pragma Convention
(C
, cpu_set_t
);
537 type cpu_set_t_ptr
is access all cpu_set_t
;
538 -- In the run-time library we use this pointer because the size of type
539 -- cpu_set_t varies depending on the glibc version. Hence, objects of type
540 -- cpu_set_t are allocated dynamically using the number of processors
541 -- available in the target machine (value obtained at execution time).
543 function CPU_ALLOC
(count
: size_t
) return cpu_set_t_ptr
;
544 pragma Import
(C
, CPU_ALLOC
, "__gnat_cpu_alloc");
545 -- Wrapper around the CPU_ALLOC C macro
547 function CPU_ALLOC_SIZE
(count
: size_t
) return size_t
;
548 pragma Import
(C
, CPU_ALLOC_SIZE
, "__gnat_cpu_alloc_size");
549 -- Wrapper around the CPU_ALLOC_SIZE C macro
551 procedure CPU_FREE
(cpuset
: cpu_set_t_ptr
);
552 pragma Import
(C
, CPU_FREE
, "__gnat_cpu_free");
553 -- Wrapper around the CPU_FREE C macro
555 procedure CPU_ZERO
(count
: size_t
; cpuset
: cpu_set_t_ptr
);
556 pragma Import
(C
, CPU_ZERO
, "__gnat_cpu_zero");
557 -- Wrapper around the CPU_ZERO_S C macro
559 procedure CPU_SET
(cpu
: int
; count
: size_t
; cpuset
: cpu_set_t_ptr
);
560 pragma Import
(C
, CPU_SET
, "__gnat_cpu_set");
561 -- Wrapper around the CPU_SET_S C macro
563 function pthread_setaffinity_np
566 cpuset
: cpu_set_t_ptr
) return int
;
567 pragma Import
(C
, pthread_setaffinity_np
, "pthread_setaffinity_np");
568 pragma Weak_External
(pthread_setaffinity_np
);
569 -- Use a weak symbol because this function may be available or not,
570 -- depending on the version of the system.
572 function pthread_attr_setaffinity_np
573 (attr
: access pthread_attr_t
;
575 cpuset
: cpu_set_t_ptr
) return int
;
576 pragma Import
(C
, pthread_attr_setaffinity_np
,
577 "pthread_attr_setaffinity_np");
578 pragma Weak_External
(pthread_attr_setaffinity_np
);
579 -- Use a weak symbol because this function may be available or not,
580 -- depending on the version of the system.
585 array (0 .. OS_Constants
.SIZEOF_sigset
- 1) of unsigned_char
;
586 pragma Convention
(C
, sigset_t
);
587 for sigset_t
'Alignment use Interfaces
.C
.unsigned_long
'Alignment;
589 pragma Warnings
(Off
);
590 for struct_sigaction
use record
591 sa_handler
at Linux
.sa_handler_pos
range 0 .. Standard
'Address_Size - 1;
592 sa_mask
at Linux
.sa_mask_pos
range 0 .. 1023;
593 sa_flags
at Linux
.sa_flags_pos
594 range 0 .. Interfaces
.C
.unsigned_long
'Size - 1;
596 -- We intentionally leave sa_restorer unspecified and let the compiler
597 -- append it after the last field, so disable corresponding warning.
598 pragma Warnings
(On
);
600 type pid_t
is new int
;
602 type unsigned_long_long_t
is mod 2 ** 64;
603 -- Local type only used to get the alignment of this type below
605 subtype char_array
is Interfaces
.C
.char_array
;
607 type pthread_attr_t
is record
608 Data
: char_array
(1 .. OS_Constants
.PTHREAD_ATTR_SIZE
);
610 pragma Convention
(C
, pthread_attr_t
);
611 for pthread_attr_t
'Alignment use Interfaces
.C
.unsigned_long
'Alignment;
613 type pthread_condattr_t
is record
614 Data
: char_array
(1 .. OS_Constants
.PTHREAD_CONDATTR_SIZE
);
616 pragma Convention
(C
, pthread_condattr_t
);
617 for pthread_condattr_t
'Alignment use Interfaces
.C
.int
'Alignment;
619 type pthread_mutexattr_t
is record
620 Data
: char_array
(1 .. OS_Constants
.PTHREAD_MUTEXATTR_SIZE
);
622 pragma Convention
(C
, pthread_mutexattr_t
);
623 for pthread_mutexattr_t
'Alignment use Interfaces
.C
.int
'Alignment;
625 type pthread_mutex_t
is record
626 Data
: char_array
(1 .. OS_Constants
.PTHREAD_MUTEX_SIZE
);
628 pragma Convention
(C
, pthread_mutex_t
);
629 for pthread_mutex_t
'Alignment use Interfaces
.C
.unsigned_long
'Alignment;
631 type pthread_rwlockattr_t
is record
632 Data
: char_array
(1 .. OS_Constants
.PTHREAD_RWLOCKATTR_SIZE
);
634 pragma Convention
(C
, pthread_rwlockattr_t
);
635 for pthread_rwlockattr_t
'Alignment use Interfaces
.C
.unsigned_long
'Alignment;
637 type pthread_rwlock_t
is record
638 Data
: char_array
(1 .. OS_Constants
.PTHREAD_RWLOCK_SIZE
);
640 pragma Convention
(C
, pthread_rwlock_t
);
641 for pthread_rwlock_t
'Alignment use Interfaces
.C
.unsigned_long
'Alignment;
643 type pthread_cond_t
is record
644 Data
: char_array
(1 .. OS_Constants
.PTHREAD_COND_SIZE
);
646 pragma Convention
(C
, pthread_cond_t
);
647 for pthread_cond_t
'Alignment use unsigned_long_long_t
'Alignment;
649 type pthread_key_t
is new unsigned
;
651 end System
.OS_Interface
;