| ------------------------------------------------------------------------------ |
| -- -- |
| -- 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) 1991-1994, Florida State University -- |
| -- Copyright (C) 1995-2014, 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 GNU/Linux (GNU/LinuxThreads) 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.Linux; |
| with System.OS_Constants; |
| |
| package System.OS_Interface is |
| pragma Preelaborate; |
| |
| pragma Linker_Options ("-lpthread"); |
| pragma Linker_Options ("-lrt"); |
| -- Needed for clock_getres with glibc versions prior to 2.17 |
| |
| 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"); |
| |
| EAGAIN : constant := System.Linux.EAGAIN; |
| EINTR : constant := System.Linux.EINTR; |
| EINVAL : constant := System.Linux.EINVAL; |
| ENOMEM : constant := System.Linux.ENOMEM; |
| EPERM : constant := System.Linux.EPERM; |
| ETIMEDOUT : constant := System.Linux.ETIMEDOUT; |
| |
| ------------- |
| -- Signals -- |
| ------------- |
| |
| Max_Interrupt : constant := 63; |
| type Signal is new int range 0 .. Max_Interrupt; |
| for Signal'Size use int'Size; |
| |
| SIGHUP : constant := System.Linux.SIGHUP; |
| SIGINT : constant := System.Linux.SIGINT; |
| SIGQUIT : constant := System.Linux.SIGQUIT; |
| SIGILL : constant := System.Linux.SIGILL; |
| SIGTRAP : constant := System.Linux.SIGTRAP; |
| SIGIOT : constant := System.Linux.SIGIOT; |
| SIGABRT : constant := System.Linux.SIGABRT; |
| SIGFPE : constant := System.Linux.SIGFPE; |
| SIGKILL : constant := System.Linux.SIGKILL; |
| SIGBUS : constant := System.Linux.SIGBUS; |
| SIGSEGV : constant := System.Linux.SIGSEGV; |
| SIGPIPE : constant := System.Linux.SIGPIPE; |
| SIGALRM : constant := System.Linux.SIGALRM; |
| SIGTERM : constant := System.Linux.SIGTERM; |
| SIGUSR1 : constant := System.Linux.SIGUSR1; |
| SIGUSR2 : constant := System.Linux.SIGUSR2; |
| SIGCLD : constant := System.Linux.SIGCLD; |
| SIGCHLD : constant := System.Linux.SIGCHLD; |
| SIGPWR : constant := System.Linux.SIGPWR; |
| SIGWINCH : constant := System.Linux.SIGWINCH; |
| SIGURG : constant := System.Linux.SIGURG; |
| SIGPOLL : constant := System.Linux.SIGPOLL; |
| SIGIO : constant := System.Linux.SIGIO; |
| SIGLOST : constant := System.Linux.SIGLOST; |
| SIGSTOP : constant := System.Linux.SIGSTOP; |
| SIGTSTP : constant := System.Linux.SIGTSTP; |
| SIGCONT : constant := System.Linux.SIGCONT; |
| SIGTTIN : constant := System.Linux.SIGTTIN; |
| SIGTTOU : constant := System.Linux.SIGTTOU; |
| SIGVTALRM : constant := System.Linux.SIGVTALRM; |
| SIGPROF : constant := System.Linux.SIGPROF; |
| SIGXCPU : constant := System.Linux.SIGXCPU; |
| SIGXFSZ : constant := System.Linux.SIGXFSZ; |
| SIGUNUSED : constant := System.Linux.SIGUNUSED; |
| SIGSTKFLT : constant := System.Linux.SIGSTKFLT; |
| SIGLTHRRES : constant := System.Linux.SIGLTHRRES; |
| SIGLTHRCAN : constant := System.Linux.SIGLTHRCAN; |
| SIGLTHRDBG : constant := System.Linux.SIGLTHRDBG; |
| |
| 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) |
| |
| SIGLTHRRES, SIGLTHRCAN, SIGLTHRDBG); |
| -- These three signals are used by GNU/LinuxThreads starting from glibc |
| -- 2.1 (future 2.2). |
| |
| Reserved : constant Signal_Set := (SIGVTALRM, SIGUNUSED); |
| -- Not clear why these two signals are reserved. Perhaps they are not |
| -- supported by this version of GNU/Linux ??? |
| |
| 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 union_type_3 is new String (1 .. 116); |
| type siginfo_t is record |
| si_signo : int; |
| si_code : int; |
| si_errno : int; |
| X_data : union_type_3; |
| end record; |
| pragma Convention (C, siginfo_t); |
| |
| type struct_sigaction is record |
| sa_handler : System.Address; |
| sa_mask : sigset_t; |
| sa_flags : Interfaces.C.unsigned_long; |
| sa_restorer : System.Address; |
| end record; |
| pragma Convention (C, struct_sigaction); |
| |
| type struct_sigaction_ptr is access all struct_sigaction; |
| |
| type Machine_State is record |
| eip : unsigned_long; |
| ebx : unsigned_long; |
| esp : unsigned_long; |
| ebp : unsigned_long; |
| esi : unsigned_long; |
| edi : unsigned_long; |
| end record; |
| type Machine_State_Ptr is access all Machine_State; |
| |
| SA_SIGINFO : constant := System.Linux.SA_SIGINFO; |
| SA_ONSTACK : constant := System.Linux.SA_ONSTACK; |
| |
| SIG_BLOCK : constant := 0; |
| SIG_UNBLOCK : constant := 1; |
| SIG_SETMASK : 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 -- |
| ---------- |
| |
| subtype time_t is System.Linux.time_t; |
| subtype timespec is System.Linux.timespec; |
| subtype timeval is System.Linux.timeval; |
| subtype clockid_t is System.Linux.clockid_t; |
| |
| 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); |
| |
| function sysconf (name : int) return long; |
| pragma Import (C, sysconf); |
| |
| SC_CLK_TCK : constant := 2; |
| SC_NPROCESSORS_ONLN : constant := 84; |
| |
| ------------------------- |
| -- Priority Scheduling -- |
| ------------------------- |
| |
| SCHED_OTHER : constant := 0; |
| SCHED_FIFO : constant := 1; |
| SCHED_RR : constant := 2; |
| |
| function To_Target_Priority |
| (Prio : System.Any_Priority) return Interfaces.C.int; |
| -- 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"); |
| |
| PR_SET_NAME : constant := 15; |
| |
| function prctl |
| (option : int; |
| arg2, arg3, arg4, arg5 : unsigned_long := 0) return int; |
| pragma Import (C, prctl); |
| |
| ------------- |
| -- 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 unsigned_long; |
| subtype Thread_Id is pthread_t; |
| |
| function To_pthread_t is |
| new Ada.Unchecked_Conversion (unsigned_long, pthread_t); |
| |
| type pthread_mutex_t is limited private; |
| type pthread_rwlock_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_rwlockattr_t is limited private; |
| type pthread_condattr_t is limited private; |
| type pthread_key_t is private; |
| |
| PTHREAD_CREATE_DETACHED : constant := 1; |
| |
| ----------- |
| -- 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; |
| pragma Import (C, sigaltstack, "sigaltstack"); |
| |
| Alternate_Stack : aliased System.Address; |
| pragma Import (C, Alternate_Stack, "__gnat_alternate_stack"); |
| -- The alternate signal stack for stack overflows |
| |
| Alternate_Stack_Size : constant := 16 * 1024; |
| -- This must be in keeping with init.c:__gnat_alternate_stack |
| |
| function Get_Stack_Base (thread : pthread_t) return Address; |
| pragma Inline (Get_Stack_Base); |
| -- This is a dummy procedure to share some GNULLI files |
| |
| --------------------------------------- |
| -- Nonstandard Thread Initialization -- |
| --------------------------------------- |
| |
| procedure pthread_init; |
| pragma Inline (pthread_init); |
| -- This is a dummy procedure to share some GNULLI files |
| |
| ------------------------- |
| -- 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_rwlockattr_init |
| (attr : access pthread_rwlockattr_t) return int; |
| pragma Import (C, pthread_rwlockattr_init, "pthread_rwlockattr_init"); |
| |
| function pthread_rwlockattr_destroy |
| (attr : access pthread_rwlockattr_t) return int; |
| pragma Import (C, pthread_rwlockattr_destroy, "pthread_rwlockattr_destroy"); |
| |
| PTHREAD_RWLOCK_PREFER_READER_NP : constant := 0; |
| PTHREAD_RWLOCK_PREFER_WRITER_NP : constant := 1; |
| PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP : constant := 2; |
| |
| function pthread_rwlockattr_setkind_np |
| (attr : access pthread_rwlockattr_t; |
| pref : int) return int; |
| pragma Import |
| (C, pthread_rwlockattr_setkind_np, "pthread_rwlockattr_setkind_np"); |
| |
| function pthread_rwlock_init |
| (mutex : access pthread_rwlock_t; |
| attr : access pthread_rwlockattr_t) return int; |
| pragma Import (C, pthread_rwlock_init, "pthread_rwlock_init"); |
| |
| function pthread_rwlock_destroy |
| (mutex : access pthread_rwlock_t) return int; |
| pragma Import (C, pthread_rwlock_destroy, "pthread_rwlock_destroy"); |
| |
| function pthread_rwlock_rdlock (mutex : access pthread_rwlock_t) return int; |
| pragma Import (C, pthread_rwlock_rdlock, "pthread_rwlock_rdlock"); |
| |
| function pthread_rwlock_wrlock (mutex : access pthread_rwlock_t) return int; |
| pragma Import (C, pthread_rwlock_wrlock, "pthread_rwlock_wrlock"); |
| |
| function pthread_rwlock_unlock (mutex : access pthread_rwlock_t) return int; |
| pragma Import (C, pthread_rwlock_unlock, "pthread_rwlock_unlock"); |
| |
| 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 -- |
| -------------------------- |
| |
| type struct_sched_param is record |
| sched_priority : int; -- scheduling priority |
| 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_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, "pthread_attr_setdetachstate"); |
| |
| function pthread_attr_setstacksize |
| (attr : access pthread_attr_t; |
| stacksize : size_t) return int; |
| pragma Import (C, pthread_attr_setstacksize, "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, "__gnat_lwp_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"); |
| |
| CPU_SETSIZE : constant := 1_024; |
| -- Size of the cpu_set_t mask on most linux systems (SUSE 11 uses 4_096). |
| -- This is kept for backward compatibility (System.Task_Info uses it), but |
| -- the run-time library does no longer rely on static masks, using |
| -- dynamically allocated masks instead. |
| |
| type bit_field is array (1 .. CPU_SETSIZE) of Boolean; |
| for bit_field'Size use CPU_SETSIZE; |
| pragma Pack (bit_field); |
| pragma Convention (C, bit_field); |
| |
| type cpu_set_t is record |
| bits : bit_field; |
| end record; |
| pragma Convention (C, cpu_set_t); |
| |
| type cpu_set_t_ptr is access all cpu_set_t; |
| -- In the run-time library we use this pointer because the size of type |
| -- cpu_set_t varies depending on the glibc version. Hence, objects of type |
| -- cpu_set_t are allocated dynamically using the number of processors |
| -- available in the target machine (value obtained at execution time). |
| |
| function CPU_ALLOC (count : size_t) return cpu_set_t_ptr; |
| pragma Import (C, CPU_ALLOC, "__gnat_cpu_alloc"); |
| -- Wrapper around the CPU_ALLOC C macro |
| |
| function CPU_ALLOC_SIZE (count : size_t) return size_t; |
| pragma Import (C, CPU_ALLOC_SIZE, "__gnat_cpu_alloc_size"); |
| -- Wrapper around the CPU_ALLOC_SIZE C macro |
| |
| procedure CPU_FREE (cpuset : cpu_set_t_ptr); |
| pragma Import (C, CPU_FREE, "__gnat_cpu_free"); |
| -- Wrapper around the CPU_FREE C macro |
| |
| procedure CPU_ZERO (count : size_t; cpuset : cpu_set_t_ptr); |
| pragma Import (C, CPU_ZERO, "__gnat_cpu_zero"); |
| -- Wrapper around the CPU_ZERO_S C macro |
| |
| procedure CPU_SET (cpu : int; count : size_t; cpuset : cpu_set_t_ptr); |
| pragma Import (C, CPU_SET, "__gnat_cpu_set"); |
| -- Wrapper around the CPU_SET_S C macro |
| |
| function pthread_setaffinity_np |
| (thread : pthread_t; |
| cpusetsize : size_t; |
| cpuset : cpu_set_t_ptr) return int; |
| pragma Import (C, pthread_setaffinity_np, "pthread_setaffinity_np"); |
| pragma Weak_External (pthread_setaffinity_np); |
| -- Use a weak symbol because this function may be available or not, |
| -- depending on the version of the system. |
| |
| function pthread_attr_setaffinity_np |
| (attr : access pthread_attr_t; |
| cpusetsize : size_t; |
| cpuset : cpu_set_t_ptr) return int; |
| pragma Import (C, pthread_attr_setaffinity_np, |
| "pthread_attr_setaffinity_np"); |
| pragma Weak_External (pthread_attr_setaffinity_np); |
| -- Use a weak symbol because this function may be available or not, |
| -- depending on the version of the system. |
| |
| private |
| |
| type sigset_t is |
| array (0 .. OS_Constants.SIZEOF_sigset - 1) of unsigned_char; |
| pragma Convention (C, sigset_t); |
| for sigset_t'Alignment use Interfaces.C.unsigned_long'Alignment; |
| |
| pragma Warnings (Off); |
| for struct_sigaction use record |
| sa_handler at Linux.sa_handler_pos range 0 .. Standard'Address_Size - 1; |
| sa_mask at Linux.sa_mask_pos range 0 .. 1023; |
| sa_flags at Linux.sa_flags_pos |
| range 0 .. Interfaces.C.unsigned_long'Size - 1; |
| end record; |
| -- We intentionally leave sa_restorer unspecified and let the compiler |
| -- append it after the last field, so disable corresponding warning. |
| pragma Warnings (On); |
| |
| type pid_t is new int; |
| |
| 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_rwlockattr_t is record |
| Data : char_array (1 .. OS_Constants.PTHREAD_RWLOCKATTR_SIZE); |
| end record; |
| pragma Convention (C, pthread_rwlockattr_t); |
| for pthread_rwlockattr_t'Alignment use Interfaces.C.unsigned_long'Alignment; |
| |
| type pthread_rwlock_t is record |
| Data : char_array (1 .. OS_Constants.PTHREAD_RWLOCK_SIZE); |
| end record; |
| pragma Convention (C, pthread_rwlock_t); |
| for pthread_rwlock_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 Interfaces.Unsigned_64'Alignment; |
| |
| type pthread_key_t is new unsigned; |
| |
| end System.OS_Interface; |
