+++ /dev/null
-------------------------------------------------------------------------------
--- --
--- 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) 1995-2015, 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 Solaris (POSIX Threads) 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 Interfaces.C;
-
-with Ada.Unchecked_Conversion;
-
-package System.OS_Interface is
- pragma Preelaborate;
-
- pragma Linker_Options ("-lposix4");
- pragma Linker_Options ("-lpthread");
-
- -- The following is needed to allow --enable-threads=solaris
-
- pragma Linker_Options ("-lthread");
-
- 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;
- ETIMEDOUT : constant := 145;
-
- -------------
- -- Signals --
- -------------
-
- Max_Interrupt : constant := 45;
- 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
- SIGWINCH : constant := 20; -- window size change
- SIGURG : constant := 21; -- urgent condition on IO channel
- SIGPOLL : constant := 22; -- pollable event occurred
- SIGIO : constant := 22; -- I/O possible (Solaris SIGPOLL alias)
- SIGSTOP : constant := 23; -- stop (cannot be caught or ignored)
- SIGTSTP : constant := 24; -- user stop requested from tty
- SIGCONT : constant := 25; -- stopped process has been continued
- SIGTTIN : constant := 26; -- background tty read attempted
- SIGTTOU : constant := 27; -- background tty write attempted
- SIGVTALRM : constant := 28; -- virtual timer expired
- SIGPROF : constant := 29; -- profiling timer expired
- SIGXCPU : constant := 30; -- CPU time limit exceeded
- SIGXFSZ : constant := 31; -- filesize limit exceeded
- SIGWAITING : constant := 32; -- process's lwps blocked (Solaris)
- SIGLWP : constant := 33; -- used by thread library (Solaris)
- SIGFREEZE : constant := 34; -- used by CPR (Solaris)
- SIGTHAW : constant := 35; -- used by CPR (Solaris)
- SIGCANCEL : constant := 36; -- thread cancellation signal (libthread)
-
- SIGADAABORT : constant := SIGABRT;
-
- type Signal_Set is array (Natural range <>) of Signal;
-
- Unmasked : constant Signal_Set := (SIGTRAP, SIGLWP, SIGPROF);
-
- -- Following signals should not be disturbed.
- -- See c-posix-signals.c in FLORIST
-
- Reserved : constant Signal_Set :=
- (SIGKILL, SIGSTOP, SIGWAITING, SIGCANCEL);
-
- 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 struct_sigaction is record
- sa_flags : int;
- sa_handler : System.Address;
- sa_mask : sigset_t;
- sa_resv1 : int;
- sa_resv2 : int;
- end record;
- pragma Convention (C, struct_sigaction);
- type struct_sigaction_ptr is access all struct_sigaction;
-
- SA_SIGINFO : constant := 16#0008#;
- SA_ONSTACK : constant := 16#0001#;
-
- SIG_BLOCK : constant := 1;
- SIG_UNBLOCK : constant := 2;
- SIG_SETMASK : constant := 3;
-
- 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 --
- ----------
-
- Time_Slice_Supported : constant Boolean := True;
- -- Indicates whether time slicing is supported
-
- type timespec is private;
-
- type clockid_t is new int;
-
- function clock_getres
- (clock_id : clockid_t;
- res : access timespec) return int;
- pragma Import (C, clock_getres, "clock_getres");
-
- function clock_gettime
- (clock_id : clockid_t;
- tp : access timespec) return int;
- pragma Import (C, clock_gettime, "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 := 1;
- SCHED_RR : constant := 2;
- SCHED_OTHER : constant := 0;
-
- 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");
-
- ---------
- -- LWP --
- ---------
-
- function lwp_self return System.Address;
- pragma Import (C, lwp_self, "_lwp_self");
-
- -------------
- -- 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 Solaris. 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;
-
- PTHREAD_CREATE_DETACHED : constant := 16#40#;
-
- PTHREAD_SCOPE_PROCESS : constant := 0;
- PTHREAD_SCOPE_SYSTEM : constant := 1;
-
- -----------
- -- Stack --
- -----------
-
- type stack_t is record
- ss_sp : System.Address;
- ss_size : size_t;
- ss_flags : int;
- 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;
- -- This is a dummy definition, never used (Alternate_Stack_Size is null)
-
- Alternate_Stack_Size : constant := 0;
- -- No alternate signal stack is used on this platform
-
- Stack_Base_Available : constant Boolean := False;
- -- Indicates whether the stack base is available on this target
-
- function Get_Stack_Base (thread : pthread_t) return Address;
- pragma Inline (Get_Stack_Base);
- -- Returns the stack base of the specified thread. Only call this function
- -- when Stack_Base_Available is True.
-
- function Get_Page_Size return int;
- pragma Import (C, Get_Page_Size, "getpagesize");
- -- Returns the size of a page
-
- PROT_NONE : constant := 0;
- PROT_READ : constant := 1;
- PROT_WRITE : constant := 2;
- PROT_EXEC : constant := 4;
- PROT_ALL : constant := PROT_READ + PROT_WRITE + PROT_EXEC;
- PROT_ON : constant := PROT_READ;
- PROT_OFF : constant := PROT_ALL;
-
- function mprotect (addr : Address; len : size_t; prot : int) return int;
- pragma Import (C, mprotect);
-
- ---------------------------------------
- -- Nonstandard Thread Initialization --
- ---------------------------------------
-
- procedure 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, "__posix_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_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");
-
- Relative_Timed_Wait : constant Boolean := False;
- -- pthread_cond_timedwait requires an absolute delay time
-
- --------------------------
- -- POSIX.1c Section 13 --
- --------------------------
-
- PTHREAD_PRIO_NONE : constant := 0;
- PTHREAD_PRIO_INHERIT : constant := 16#10#;
- PTHREAD_PRIO_PROTECT : constant := 16#20#;
-
- function pthread_mutexattr_setprotocol
- (attr : access pthread_mutexattr_t;
- protocol : int) return int;
- pragma Import (C, pthread_mutexattr_setprotocol);
-
- function pthread_mutexattr_setprioceiling
- (attr : access pthread_mutexattr_t;
- prioceiling : int) return int;
- pragma Import (C, pthread_mutexattr_setprioceiling);
-
- type Array_8_Int is array (0 .. 7) of int;
- type struct_sched_param is record
- sched_priority : int;
- sched_pad : Array_8_Int;
- end record;
-
- 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_setscope
- (attr : access pthread_attr_t;
- contentionscope : int) return int;
- pragma Import (C, pthread_attr_setscope, "pthread_attr_setscope");
-
- function pthread_attr_setinheritsched
- (attr : access pthread_attr_t;
- inheritsched : int) return int;
- pragma Import (C, pthread_attr_setinheritsched);
-
- function pthread_attr_setschedpolicy
- (attr : access pthread_attr_t;
- policy : int) return int;
- pragma Import (C, 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);
-
- function pthread_attr_setstacksize
- (attr : access pthread_attr_t;
- stacksize : size_t) return int;
- pragma Import (C, 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");
-
- --------------------------
- -- 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");
-
-private
-
- type array_type_1 is array (Integer range 0 .. 3) 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 long;
-
- type time_t is new long;
-
- type timespec is record
- tv_sec : time_t;
- tv_nsec : long;
- end record;
- pragma Convention (C, timespec);
-
- type pthread_attr_t is record
- pthread_attrp : System.Address;
- end record;
- pragma Convention (C, pthread_attr_t);
-
- type pthread_condattr_t is record
- pthread_condattrp : System.Address;
- end record;
- pragma Convention (C, pthread_condattr_t);
-
- type pthread_mutexattr_t is record
- pthread_mutexattrp : System.Address;
- end record;
- pragma Convention (C, pthread_mutexattr_t);
-
- type pthread_t is new unsigned;
-
- type uint64_t is mod 2 ** 64;
-
- type pthread_mutex_t is record
- pthread_mutex_flags : uint64_t;
- pthread_mutex_owner64 : uint64_t;
- pthread_mutex_data : uint64_t;
- end record;
- pragma Convention (C, pthread_mutex_t);
- type pthread_mutex_t_ptr is access pthread_mutex_t;
-
- type pthread_cond_t is record
- pthread_cond_flags : uint64_t;
- pthread_cond_data : uint64_t;
- end record;
- pragma Convention (C, pthread_cond_t);
-
- type pthread_key_t is new unsigned;
-
-end System.OS_Interface;
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