| ------------------------------------------------------------------------------ |
| -- -- |
| -- 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) 1995-2022, 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 the HP-UX 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.Parameters; |
| |
| package System.OS_Interface is |
| pragma Preelaborate; |
| |
| pragma Linker_Options ("-lcma"); |
| |
| subtype int is Interfaces.C.int; |
| 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 := 11; |
| EINTR : constant := 4; |
| EINVAL : constant := 22; |
| ENOMEM : constant := 12; |
| ETIME : constant := 52; |
| ETIMEDOUT : constant := 238; |
| |
| FUNC_ERR : constant := -1; |
| |
| ------------- |
| -- Signals -- |
| ------------- |
| |
| Max_Interrupt : constant := 44; |
| type Signal is new int range 0 .. Max_Interrupt; |
| for Signal'Size use int'Size; |
| |
| SIGHUP : constant := 1; -- hangup |
| SIGINT : constant := 2; -- interrupt (rubout) |
| SIGQUIT : constant := 3; -- quit (ASCD FS) |
| SIGILL : constant := 4; -- illegal instruction (not reset) |
| SIGTRAP : constant := 5; -- trace trap (not reset) |
| SIGIOT : constant := 6; -- IOT instruction |
| SIGABRT : constant := 6; -- used by abort, replace SIGIOT in the future |
| SIGEMT : constant := 7; -- EMT instruction |
| SIGFPE : constant := 8; -- floating point exception |
| SIGKILL : constant := 9; -- kill (cannot be caught or ignored) |
| SIGBUS : constant := 10; -- bus error |
| SIGSEGV : constant := 11; -- segmentation violation |
| SIGSYS : constant := 12; -- bad argument to system call |
| SIGPIPE : constant := 13; -- write on a pipe with no one to read it |
| SIGALRM : constant := 14; -- alarm clock |
| SIGTERM : constant := 15; -- software termination signal from kill |
| SIGUSR1 : constant := 16; -- user defined signal 1 |
| SIGUSR2 : constant := 17; -- user defined signal 2 |
| SIGCLD : constant := 18; -- alias for SIGCHLD |
| SIGCHLD : constant := 18; -- child status change |
| SIGPWR : constant := 19; -- power-fail restart |
| SIGVTALRM : constant := 20; -- virtual timer alarm |
| SIGPROF : constant := 21; -- profiling timer alarm |
| SIGIO : constant := 22; -- asynchronous I/O |
| SIGPOLL : constant := 22; -- pollable event occurred |
| SIGWINCH : constant := 23; -- window size change |
| SIGSTOP : constant := 24; -- stop (cannot be caught or ignored) |
| SIGTSTP : constant := 25; -- user stop requested from tty |
| SIGCONT : constant := 26; -- stopped process has been continued |
| SIGTTIN : constant := 27; -- background tty read attempted |
| SIGTTOU : constant := 28; -- background tty write attempted |
| SIGURG : constant := 29; -- urgent condition on IO channel |
| SIGLOST : constant := 30; -- remote lock lost (NFS) |
| SIGDIL : constant := 32; -- DIL signal |
| SIGXCPU : constant := 33; -- CPU time limit exceeded (setrlimit) |
| SIGXFSZ : constant := 34; -- file size limit exceeded (setrlimit) |
| |
| SIGADAABORT : constant := SIGABRT; |
| -- Note: on other targets, we usually use SIGABRT, but on HP/UX, it |
| -- appears that SIGABRT can't be used in sigwait(), so we use SIGTERM. |
| |
| type Signal_Set is array (Natural range <>) of Signal; |
| |
| Unmasked : constant Signal_Set := |
| (SIGBUS, SIGTRAP, SIGTTIN, SIGTTOU, SIGTSTP); |
| |
| Reserved : constant Signal_Set := (SIGKILL, SIGSTOP); |
| |
| type sigset_t is private; |
| |
| type isr_address is access procedure (sig : int); |
| pragma Convention (C, isr_address); |
| |
| function intr_attach (sig : int; handler : isr_address) return long; |
| |
| Intr_Attach_Reset : constant Boolean := True; |
| -- True if intr_attach is reset after an interrupt handler is called |
| |
| 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 Signal_Handler is access procedure (signo : Signal); |
| |
| type struct_sigaction is record |
| sa_handler : System.Address; |
| sa_mask : sigset_t; |
| sa_flags : int; |
| end record; |
| pragma Convention (C, struct_sigaction); |
| type struct_sigaction_ptr is access all struct_sigaction; |
| |
| SA_RESTART : constant := 16#40#; |
| SA_SIGINFO : constant := 16#10#; |
| SA_ONSTACK : constant := 16#01#; |
| |
| SIG_BLOCK : constant := 0; |
| SIG_UNBLOCK : constant := 1; |
| SIG_SETMASK : constant := 2; |
| |
| SIG_DFL : constant := 0; |
| SIG_IGN : constant := 1; |
| SIG_ERR : constant := -1; |
| |
| function sigaction |
| (sig : Signal; |
| act : struct_sigaction_ptr; |
| oact : struct_sigaction_ptr) return int; |
| pragma Import (C, sigaction, "sigaction"); |
| |
| ---------- |
| -- Time -- |
| ---------- |
| |
| type timespec is private; |
| |
| function nanosleep (rqtp, rmtp : access timespec) return int; |
| pragma Import (C, nanosleep); |
| |
| type clockid_t is new int; |
| |
| function Clock_Gettime |
| (Clock_Id : clockid_t; Tp : access timespec) return int; |
| pragma Import (C, Clock_Gettime); |
| |
| 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 := 0; |
| SCHED_RR : constant := 1; |
| SCHED_OTHER : constant := 2; |
| |
| ------------- |
| -- 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 private; |
| 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; |
| |
| -- Read/Write lock not supported on HPUX. To add support both types |
| -- pthread_rwlock_t and pthread_rwlockattr_t must properly be defined |
| -- with the associated routines pthread_rwlock_[init/destroy] and |
| -- pthread_rwlock_[rdlock/wrlock/unlock]. |
| |
| subtype pthread_rwlock_t is pthread_mutex_t; |
| subtype pthread_rwlockattr_t is pthread_mutexattr_t; |
| |
| ----------- |
| -- 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) return int; |
| pragma Import (C, sigwait, "cma_sigwait"); |
| |
| function sigwait |
| (set : access sigset_t; |
| sig : access Signal) return int; |
| pragma Inline (sigwait); |
| -- DCE_THREADS has a nonstandard sigwait |
| |
| function pthread_kill |
| (thread : pthread_t; |
| sig : Signal) return int; |
| pragma Inline (pthread_kill); |
| -- DCE_THREADS doesn't have pthread_kill |
| |
| function pthread_sigmask |
| (how : int; |
| set : access sigset_t; |
| oset : access sigset_t) return int; |
| -- DCE THREADS does not have pthread_sigmask. Instead, it uses sigprocmask |
| -- to do the signal handling when the thread library is sucked in. |
| pragma Import (C, pthread_sigmask, "sigprocmask"); |
| |
| -------------------------- |
| -- POSIX.1c Section 11 -- |
| -------------------------- |
| |
| function pthread_mutexattr_init |
| (attr : access pthread_mutexattr_t) return int; |
| -- DCE_THREADS has a nonstandard pthread_mutexattr_init |
| |
| function pthread_mutexattr_destroy |
| (attr : access pthread_mutexattr_t) return int; |
| -- DCE_THREADS has a nonstandard pthread_mutexattr_destroy |
| |
| function pthread_mutex_init |
| (mutex : access pthread_mutex_t; |
| attr : access pthread_mutexattr_t) return int; |
| -- DCE_THREADS has a nonstandard pthread_mutex_init |
| |
| function pthread_mutex_destroy (mutex : access pthread_mutex_t) return int; |
| -- DCE_THREADS has a nonstandard pthread_mutex_destroy |
| |
| function pthread_mutex_lock (mutex : access pthread_mutex_t) return int; |
| pragma Inline (pthread_mutex_lock); |
| -- DCE_THREADS has nonstandard pthread_mutex_lock |
| |
| function pthread_mutex_unlock (mutex : access pthread_mutex_t) return int; |
| pragma Inline (pthread_mutex_unlock); |
| -- DCE_THREADS has nonstandard pthread_mutex_lock |
| |
| function pthread_condattr_init |
| (attr : access pthread_condattr_t) return int; |
| -- DCE_THREADS has nonstandard pthread_condattr_init |
| |
| function pthread_condattr_destroy |
| (attr : access pthread_condattr_t) return int; |
| -- DCE_THREADS has nonstandard pthread_condattr_destroy |
| |
| function pthread_cond_init |
| (cond : access pthread_cond_t; |
| attr : access pthread_condattr_t) return int; |
| -- DCE_THREADS has nonstandard pthread_cond_init |
| |
| function pthread_cond_destroy (cond : access pthread_cond_t) return int; |
| -- DCE_THREADS has nonstandard pthread_cond_destroy |
| |
| function pthread_cond_signal (cond : access pthread_cond_t) return int; |
| pragma Inline (pthread_cond_signal); |
| -- DCE_THREADS has nonstandard pthread_cond_signal |
| |
| function pthread_cond_wait |
| (cond : access pthread_cond_t; |
| mutex : access pthread_mutex_t) return int; |
| pragma Inline (pthread_cond_wait); |
| -- DCE_THREADS has a nonstandard pthread_cond_wait |
| |
| function pthread_cond_timedwait |
| (cond : access pthread_cond_t; |
| mutex : access pthread_mutex_t; |
| abstime : access timespec) return int; |
| pragma Inline (pthread_cond_timedwait); |
| -- DCE_THREADS has a nonstandard pthread_cond_timedwait |
| |
| -------------------------- |
| -- POSIX.1c Section 13 -- |
| -------------------------- |
| |
| type struct_sched_param is record |
| sched_priority : int; -- scheduling priority |
| end record; |
| |
| function pthread_setschedparam |
| (thread : pthread_t; |
| policy : int; |
| param : access struct_sched_param) return int; |
| pragma Inline (pthread_setschedparam); |
| -- DCE_THREADS has a nonstandard pthread_setschedparam |
| |
| function sched_yield return int; |
| pragma Inline (sched_yield); |
| -- DCE_THREADS has a nonstandard sched_yield |
| |
| --------------------------- |
| -- P1003.1c - Section 16 -- |
| --------------------------- |
| |
| function pthread_attr_init (attributes : access pthread_attr_t) return int; |
| pragma Inline (pthread_attr_init); |
| -- DCE_THREADS has a nonstandard pthread_attr_init |
| |
| function pthread_attr_destroy |
| (attributes : access pthread_attr_t) return int; |
| pragma Inline (pthread_attr_destroy); |
| -- DCE_THREADS has a nonstandard pthread_attr_destroy |
| |
| function pthread_attr_setstacksize |
| (attr : access pthread_attr_t; |
| stacksize : size_t) return int; |
| pragma Inline (pthread_attr_setstacksize); |
| -- DCE_THREADS has a nonstandard 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 Inline (pthread_create); |
| -- DCE_THREADS has a nonstandard pthread_create |
| |
| procedure pthread_detach (thread : access pthread_t); |
| pragma Import (C, pthread_detach); |
| |
| 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"); |
| |
| -------------------------- |
| -- POSIX.1c Section 17 -- |
| -------------------------- |
| |
| function pthread_setspecific |
| (key : pthread_key_t; |
| value : System.Address) return int; |
| pragma Inline (pthread_setspecific); |
| -- DCE_THREADS has a nonstandard pthread_setspecific |
| |
| function pthread_getspecific (key : pthread_key_t) return System.Address; |
| pragma Inline (pthread_getspecific); |
| -- DCE_THREADS has a nonstandard 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 Inline (pthread_key_create); |
| -- DCE_THREADS has a nonstandard pthread_key_create |
| |
| private |
| |
| type array_type_1 is array (Integer range 0 .. 7) of unsigned_long; |
| type sigset_t is record |
| X_X_sigbits : array_type_1; |
| end record; |
| pragma Convention (C, sigset_t); |
| |
| type pid_t is new int; |
| |
| type time_t is range -2 ** (System.Parameters.time_t_bits - 1) |
| .. 2 ** (System.Parameters.time_t_bits - 1) - 1; |
| |
| type timespec is record |
| tv_sec : time_t; |
| tv_nsec : long; |
| end record; |
| pragma Convention (C, timespec); |
| |
| CLOCK_REALTIME : constant clockid_t := 1; |
| |
| type cma_t_address is new System.Address; |
| |
| type cma_t_handle is record |
| field1 : cma_t_address; |
| field2 : Short_Integer; |
| field3 : Short_Integer; |
| end record; |
| for cma_t_handle'Size use 64; |
| |
| type pthread_attr_t is new cma_t_handle; |
| pragma Convention (C_Pass_By_Copy, pthread_attr_t); |
| |
| type pthread_condattr_t is new cma_t_handle; |
| pragma Convention (C_Pass_By_Copy, pthread_condattr_t); |
| |
| type pthread_mutexattr_t is new cma_t_handle; |
| pragma Convention (C_Pass_By_Copy, pthread_mutexattr_t); |
| |
| type pthread_t is new cma_t_handle; |
| pragma Convention (C_Pass_By_Copy, pthread_t); |
| |
| type pthread_mutex_t is new cma_t_handle; |
| pragma Convention (C_Pass_By_Copy, pthread_mutex_t); |
| |
| type pthread_cond_t is new cma_t_handle; |
| pragma Convention (C_Pass_By_Copy, pthread_cond_t); |
| |
| type pthread_key_t is new int; |
| |
| end System.OS_Interface; |
