------------------------------------------------------------------------------ -- -- -- GNU ADA 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) 1997-2001 Free Software Foundation, Inc. -- -- -- -- GNARL 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 2, or (at your option) any later ver- -- -- sion. GNARL 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. See the GNU General Public License -- -- for more details. You should have received a copy of the GNU General -- -- Public License distributed with GNARL; see file COPYING. If not, write -- -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, -- -- MA 02111-1307, USA. -- -- -- -- As a special exception, if other files instantiate generics from this -- -- unit, or you link this unit with other files to produce an executable, -- -- this unit does not by itself cause the resulting executable to be -- -- covered by the GNU General Public License. This exception does not -- -- however invalidate any other reasons why the executable file might be -- -- covered by the GNU Public License. -- -- -- -- GNARL was developed by the GNARL team at Florida State University. -- -- Extensive contributions were provided by Ada Core Technologies Inc. -- -- -- ------------------------------------------------------------------------------ -- This package includes all direct interfaces to OS services -- that are needed by children of System. -- PLEASE DO NOT add any with-clauses to this package -- or remove the pragma Elaborate_Body. -- It is designed to be a bottom-level (leaf) package. with Interfaces.C; package System.OS_Interface is pragma Preelaborate; pragma Linker_Options ("-lposix"); pragma Linker_Options ("-lpthread"); 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; type int32_t is range -2**31 .. (2**31)-1; for int32_t'Size use 32; ----------- -- Errno -- ----------- function Errno return int; pragma Import (C, Errno, "__get_errno"); EPERM : constant := 1; -- Operation not permitted ENOENT : constant := 2; -- No such file or directory ESRCH : constant := 3; -- No such process EINTR : constant := 4; -- Interrupted system call EIO : constant := 5; -- Input/output error ENXIO : constant := 6; -- Device not configured E2BIG : constant := 7; -- Argument list too long ENOEXEC : constant := 8; -- Exec format error EBADF : constant := 9; -- Bad file descriptor ECHILD : constant := 10; -- No child processes EDEADLK : constant := 11; -- Resource deadlock avoided ENOMEM : constant := 12; -- Cannot allocate memory EACCES : constant := 13; -- Permission denied EFAULT : constant := 14; -- Bad address ENOTBLK : constant := 15; -- Block device required EBUSY : constant := 16; -- Device busy EEXIST : constant := 17; -- File exists EXDEV : constant := 18; -- Cross-device link ENODEV : constant := 19; ENOTDIR : constant := 20; -- Not a directory EISDIR : constant := 21; -- Is a directory EINVAL : constant := 22; -- Invalid argument ENFILE : constant := 23; EMFILE : constant := 24; -- Too many open files ENOTTY : constant := 25; ETXTBSY : constant := 26; -- Text file busy EFBIG : constant := 27; -- File too large ENOSPC : constant := 28; -- No space left on device ESPIPE : constant := 29; -- Illegal seek EROFS : constant := 30; -- Read-only file system EMLINK : constant := 31; -- Too many links EPIPE : constant := 32; -- Broken pipe EDOM : constant := 33; ERANGE : constant := 34; EAGAIN : constant := 35; EWOULDBLOCK : constant := EAGAIN; -- Operation would block EINPROGRESS : constant := 36; -- Operation now in progress EALREADY : constant := 37; ENOTSOCK : constant := 38; EDESTADDRREQ : constant := 39; EMSGSIZE : constant := 40; -- Message too long EPROTOTYPE : constant := 41; ENOPROTOOPT : constant := 42; -- Protocol not available EPROTONOSUPPORT : constant := 43; -- Protocol not supported ESOCKTNOSUPPORT : constant := 44; -- Socket type not supported EOPNOTSUPP : constant := 45; -- Operation not supported EPFNOSUPPORT : constant := 46; EAFNOSUPPORT : constant := 47; EADDRINUSE : constant := 48; -- Address already in use EADDRNOTAVAIL : constant := 49; ENETDOWN : constant := 50; -- Network is down ENETUNREACH : constant := 51; -- Network is unreachable ENETRESET : constant := 52; ECONNABORTED : constant := 53; ECONNRESET : constant := 54; -- Connection reset by peer ENOBUFS : constant := 55; -- No buffer space available EISCONN : constant := 56; ENOTCONN : constant := 57; -- Socket is not connected ESHUTDOWN : constant := 58; ETOOMANYREFS : constant := 59; ETIMEDOUT : constant := 60; -- Operation timed out ECONNREFUSED : constant := 61; -- Connection refused ELOOP : constant := 62; ENAMETOOLONG : constant := 63; -- File name too long EHOSTDOWN : constant := 64; -- Host is down EHOSTUNREACH : constant := 65; -- No route to host ENOTEMPTY : constant := 66; -- Directory not empty EPROCLIM : constant := 67; -- Too many processes EUSERS : constant := 68; -- Too many users EDQUOT : constant := 69; -- Disc quota exceeded ESTALE : constant := 70; -- Stale NFS file handle EREMOTE : constant := 71; EBADRPC : constant := 72; -- RPC struct is bad ERPCMISMATCH : constant := 73; -- RPC version wrong EPROGUNAVAIL : constant := 74; -- RPC prog. not avail EPROGMISMATCH : constant := 75; -- Program version wrong EPROCUNAVAIL : constant := 76; -- Bad procedure for program ENOLCK : constant := 77; -- No locks available ENOSYS : constant := 78; -- Function not implemented EFTYPE : constant := 79; EAUTH : constant := 80; -- Authentication error ENEEDAUTH : constant := 81; -- Need authenticator EIDRM : constant := 82; -- Identifier removed ENOMSG : constant := 83; -- No message of desired type EOVERFLOW : constant := 84; EILSEQ : constant := 85; -- Illegal byte sequence ENOTSUP : constant := 86; -- Not supported ECANCELED : constant := 87; -- Operation canceled EBADMSG : constant := 88; -- Bad or Corrupt message ENODATA : constant := 89; -- No message available ENOSR : constant := 90; -- No STREAM resources ENOSTR : constant := 91; -- Not a STREAM ETIME : constant := 92; -- STREAM ioctl timeout ELAST : constant := 92; -- Must equal largest errno ------------- -- Signals -- ------------- Max_Interrupt : constant := 64; type Signal is new int range 0 .. Max_Interrupt; for Signal'Size use int'Size; sighup : constant := 1; -- hangup sigint : constant := 2; -- interrupt sigquit : constant := 3; -- quit sigill : constant := 4; -- illegal instruction (not reset when caught) sigtrap : constant := 5; -- trace trap (not reset when caught) SIGABRT : constant := 6; -- abort() sigiot : constant := SIGABRT; -- compatibility 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 sigurg : constant := 16; -- urgent condition on IO channel sigstop : constant := 17; -- sendable stop signal not from tty sigtstp : constant := 18; -- stop signal from tty sigcont : constant := 19; -- continue a stopped process sigchld : constant := 20; -- to parent on child stop or exit sigttin : constant := 21; -- to readers pgrp upon background tty read sigttou : constant := 22; -- like TTIN for output if (tp->t_local<OSTOP) sigio : constant := 23; -- input/output possible signal sigxcpu : constant := 24; -- exceeded CPU time limit sigxfsz : constant := 25; -- exceeded file size limit sigvtalrm : constant := 26; -- virtual time alarm sigprof : constant := 27; -- profiling time alarm sigwinch : constant := 28; -- window size changes siginfo : constant := 29; -- information request sigusr1 : constant := 30; -- user defined signal 1 sigusr2 : constant := 31; -- user defined signal 2 sigpwr : constant := 32; -- power fail/restart (not reset when caught) sigwaiting : constant := 0; -- process's lwps blocked (Solaris) sigcancel : constant := 0; -- thread cancellation signal (libthread) SIGADAABORT : constant := SIGABRT; type signal_set is array (Natural range <>) of Signal; Unmasked : constant signal_set := (sigkill, sigill, sigprof, sigtrap, sigpwr); -- Following signals should not be disturbed. -- See c-posix-signals.c in FLORIST Reserved : constant signal_set := (sigalrm, sigbus, sigill, sigsegv, sigfpe, SIGABRT, sigkill, sigstop); -- PTHREAD_SIGMASK(3) SIG_BLOCK : constant := 1; SIG_SETMASK : constant := 3; SIG_UNBLOCK : constant := 2; type sigset_t is private; type sigset_t_ptr is access all sigset_t; -- Binding to macros defined in function sigaddset (set : access sigset_t; sig : Signal) return int; pragma Import (C, sigaddset, "adasigaddset"); function sigdelset (set : access sigset_t; sig : Signal) return int; pragma Import (C, sigdelset, "adasigdelset"); function sigfillset (set : access sigset_t) return int; pragma Import (C, sigfillset, "adasigfillset"); function sigismember (set : access sigset_t; sig : Signal) return int; pragma Import (C, sigismember, "adasigismember"); function sigemptyset (set : access sigset_t) return int; pragma Import (C, sigemptyset, "adasigemptyset"); 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; SIG_DFL : constant := 0; SIG_IGN : constant := 1; function sigaction (sig : Signal; act : struct_sigaction_ptr; oact : struct_sigaction_ptr := null) return int; pragma Import (C, sigaction, "adasigaction"); ---------- -- Time -- ---------- type clockid_t is new int; CLOCK_REALTIME : constant := 0; type timespec is private; function To_Duration ( TS : timespec) return Duration; pragma Inline (To_Duration); function To_Timespec ( D : Duration) return timespec; pragma Inline (To_Timespec); type Struct_Timeval is private; function To_Duration ( TV : Struct_Timeval) return Duration; pragma Inline (To_Duration); function To_Timeval ( D : Duration) return Struct_Timeval; pragma Inline (To_Timeval); function Gettimeofday ( Tv : access Struct_Timeval; Tz : System.Address := System.Null_Address) return int; pragma Import (C, Gettimeofday, "gettimeofday"); function clock_gettime (clock_id : clockid_t; tp : access timespec) return int; pragma Import (C, clock_gettime, "clock_gettime"); --------- -- LWP -- --------- type lwpid_t is new int32_t; function lwp_self return System.Address; pragma Import (C, lwp_self, "ada_lwp_self"); ------------------------- -- Priority Scheduling -- ------------------------- SCHED_FIFO : constant := 1; SCHED_RR : constant := 2; SCHED_TS : constant := 3; SCHED_OTHER : constant := 3; SCHED_NP : constant := 4; function sched_get_priority_min (Policy : int) return int; pragma Import (C, sched_get_priority_min, "sched_get_priority_min"); function sched_get_priority_max (Policy : int) return int; pragma Import (C, sched_get_priority_max, "sched_get_priority_max"); ------------- -- 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; 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; subtype cond_t is pthread_cond_t; PTHREAD_CREATE_DETACHED : constant := 1; --------------------------------------- -- 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, "adasigwait"); function pthread_kill (thread : pthread_t; sig : Signal) return int; pragma Import (C, pthread_kill, "pthread_kill"); function pthread_sigmask (how : int; set : sigset_t_ptr; oset : sigset_t_ptr) 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"); -------------------------- -- POSIX.1c Section 13 -- -------------------------- PTHREAD_PRIO_NONE : constant := 0; PTHREAD_PRIO_PROTECT : constant := 2; PTHREAD_PRIO_INHERIT : constant := 1; function pthread_mutexattr_setprotocol (attr : access pthread_mutexattr_t; protocol : int) return int; pragma Import (C, pthread_mutexattr_setprotocol, "pthread_mutexattr_setprotocol"); function pthread_mutexattr_setprioceiling (attr : access pthread_mutexattr_t; prioceiling : int) return int; pragma Import (C, pthread_mutexattr_setprioceiling, "pthread_mutexattr_setprioceiling"); type struct_sched_param is record sched_priority : int; end record; for struct_sched_param use record sched_priority at 0 range 0 .. 31; 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_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, "pthread_attr_setinheritsched"); function pthread_attr_setschedpolicy (attr : access pthread_attr_t; policy : int) return int; pragma Import (C, pthread_attr_setschedpolicy); function pthread_attr_setschedparam (attr : access pthread_attr_t; sched_param : access struct_sched_param) return int; pragma Import (C, pthread_attr_setschedparam, "pthread_attr_setschedparam"); 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, "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); function pthread_key_create (key : access pthread_key_t; destructor : destructor_pointer) return int; pragma Import (C, pthread_key_create, "pthread_key_create"); --------------------------------------------------------------- -- Non portable SGI 6.5 additions to the pthread interface -- -- must be executed from within the context of a system -- -- scope task -- --------------------------------------------------------------- function pthread_setrunon_np (cpu : int) return int; pragma Import (C, pthread_setrunon_np, "pthread_setrunon_np"); private type array_type_1 is array (Integer range 0 .. 3) of unsigned; type sigset_t is record X_X_sigbits : array_type_1; end record; pragma Convention (C, sigset_t); type pid_t is new int32_t; type time_t is new int32_t; type suseconds_t is new int32_t; type timespec is record tv_sec : time_t; tv_nsec : long; end record; for timespec use record tv_sec at 0 range 0 .. 31; tv_nsec at 4 range 0 .. 31; end record; pragma Convention (C, timespec); type struct_timeval is record tv_sec : time_t; tv_usec : suseconds_t; end record; for struct_timeval use record tv_sec at 0 range 0 .. 31; tv_usec at 4 range 0 .. 31; end record; pragma Convention (C, struct_timeval); type array_type_9 is array (Integer range 0 .. 4) of long; type pthread_attr_t is record X_X_D : array_type_9; end record; pragma Convention (C, pthread_attr_t); type array_type_8 is array (Integer range 0 .. 1) of long; type pthread_condattr_t is record X_X_D : array_type_8; end record; pragma Convention (C, pthread_condattr_t); type array_type_7 is array (Integer range 0 .. 1) of long; type pthread_mutexattr_t is record X_X_D : array_type_7; end record; pragma Convention (C, pthread_mutexattr_t); type pthread_t is new unsigned; type array_type_10 is array (Integer range 0 .. 7) of long; type pthread_mutex_t is record X_X_D : array_type_10; end record; pragma Convention (C, pthread_mutex_t); type array_type_11 is array (Integer range 0 .. 7) of long; type pthread_cond_t is record X_X_D : array_type_11; end record; pragma Convention (C, pthread_cond_t); type pthread_key_t is new int; end System.OS_Interface;