| ------------------------------------------------------------------------------ |
| -- -- |
| -- 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) 1997-2021, 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 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. -- |
| -- -- |
| -- The GNARL files that were developed for RTEMS are maintained by On-Line -- |
| -- Applications Research Corporation (http://www.oarcorp.com) in coopera- -- |
| -- tion with Ada Core Technologies Inc. and Florida State University. -- |
| -- -- |
| ------------------------------------------------------------------------------ |
| |
| -- This is the RTEMS version of this package. |
| -- |
| -- RTEMS target names are of the form CPU-rtems. |
| -- This implementation is designed to work on ALL RTEMS targets. |
| -- The RTEMS implementation is primarily based upon the POSIX threads |
| -- API but there are also bindings to GNAT/RTEMS support routines |
| -- to insulate this code from C API specific details and, in some |
| -- cases, obtain target architecture and BSP specific information |
| -- that is unavailable at the time this package is built. |
| |
| -- This package encapsulates 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 Preelaborate. |
| -- It is designed to be a bottom-level (leaf) package. |
| |
| with Interfaces.C; |
| with System.OS_Constants; |
| with System.Parameters; |
| |
| package System.OS_Interface is |
| pragma Preelaborate; |
| |
| -- This interface assumes that "unsigned" is a 32-bit entity. This |
| -- will correspond to RTEMS object ids. |
| |
| subtype rtems_id is Interfaces.C.unsigned; |
| |
| 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.OS_Constants.EAGAIN; |
| EINTR : constant := System.OS_Constants.EINTR; |
| EINVAL : constant := System.OS_Constants.EINVAL; |
| ENOMEM : constant := System.OS_Constants.ENOMEM; |
| ETIMEDOUT : constant := System.OS_Constants.ETIMEDOUT; |
| |
| ------------- |
| -- Signals -- |
| ------------- |
| |
| Num_HW_Interrupts : constant := 256; |
| |
| Max_HW_Interrupt : constant := Num_HW_Interrupts - 1; |
| type HW_Interrupt is new int range 0 .. Max_HW_Interrupt; |
| |
| Max_Interrupt : constant := Max_HW_Interrupt; |
| |
| type Signal is new int range 0 .. Max_Interrupt; |
| |
| SIGXCPU : constant := 0; -- XCPU |
| 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 |
| |
| SIGADAABORT : constant := SIGABRT; |
| |
| type Signal_Set is array (Natural range <>) of Signal; |
| |
| Unmasked : constant Signal_Set := (SIGTRAP, SIGALRM, SIGEMT); |
| Reserved : constant Signal_Set := (1 .. 1 => SIGKILL); |
| |
| 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_mask : sigset_t; |
| sa_handler : System.Address; |
| end record; |
| pragma Convention (C, struct_sigaction); |
| type struct_sigaction_ptr is access all struct_sigaction; |
| |
| SA_SIGINFO : constant := 16#02#; |
| |
| SA_ONSTACK : constant := 16#00#; |
| -- SA_ONSTACK is not defined on RTEMS, but it is referred to in the POSIX |
| -- implementation of System.Interrupt_Management. Therefore we define a |
| -- dummy value of zero here so that setting this flag is a nop. |
| |
| 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 (i.e SCHED_RR is supported) |
| |
| type timespec is private; |
| |
| type clockid_t is new int; |
| |
| CLOCK_REALTIME : constant clockid_t; |
| CLOCK_MONOTONIC : constant clockid_t; |
| |
| function clock_gettime |
| (clock_id : clockid_t; |
| tp : access timespec) return int; |
| pragma Import (C, clock_gettime, "clock_gettime"); |
| |
| 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); |
| |
| ------------------------- |
| -- 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; |
| -- lwp_self does not exist on this thread library, revert to pthread_self |
| -- which is the closest approximation (with getpid). This function is |
| -- needed to share 7staprop.adb across POSIX-like targets. |
| pragma Import (C, lwp_self, "pthread_self"); |
| |
| ------------- |
| -- Threads -- |
| ------------- |
| |
| type Thread_Body is access |
| function (arg : System.Address) return System.Address; |
| pragma Convention (C, Thread_Body); |
| |
| type pthread_t is private; |
| subtype Thread_Id is 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; |
| |
| No_Key : constant pthread_key_t; |
| |
| PTHREAD_CREATE_DETACHED : constant := 0; |
| |
| PTHREAD_SCOPE_PROCESS : constant := 0; |
| PTHREAD_SCOPE_SYSTEM : 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; |
| |
| 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. |
| -- This allows us to share s-osinte.adb between all the FSU/RTEMS |
| -- run time. |
| -- Note that this value can only be true if pthread_t has a complete |
| -- definition that corresponds exactly to the C header files. |
| |
| 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. |
| |
| -- These two functions are only needed to share s-taprop.adb with |
| -- FSU threads. |
| |
| function Get_Page_Size return int; |
| pragma Import (C, Get_Page_Size, "getpagesize"); |
| -- Returns the size of a page |
| |
| PROT_ON : constant := 0; |
| PROT_OFF : constant := 0; |
| |
| function mprotect (addr : Address; len : size_t; prot : int) return int; |
| pragma Import (C, mprotect); |
| |
| ----------------------------------------- |
| -- Nonstandard Thread Initialization -- |
| ----------------------------------------- |
| |
| procedure pthread_init; |
| -- FSU_THREADS requires pthread_init, which is nonstandard |
| -- and this should be invoked during the elaboration of s-taprop.adb |
| -- |
| -- RTEMS does not require this so we provide an empty Ada body. |
| |
| ------------------------- |
| -- 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; |
| |
| 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 -- |
| -------------------------- |
| |
| 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); |
| |
| 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; |
| ss_low_priority : int; |
| ss_replenish_period : timespec; |
| ss_initial_budget : timespec; |
| sched_ss_max_repl : int; |
| 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); |
| |
| 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 : int) return int; |
| pragma Import (C, 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); |
| 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"); |
| |
| ------------------------------------------------------------ |
| -- Binary Semaphore Wrapper to Support Interrupt Tasks -- |
| ------------------------------------------------------------ |
| |
| type Binary_Semaphore_Id is new rtems_id; |
| |
| function Binary_Semaphore_Create return Binary_Semaphore_Id; |
| pragma Import ( |
| C, |
| Binary_Semaphore_Create, |
| "__gnat_binary_semaphore_create"); |
| |
| function Binary_Semaphore_Delete (ID : Binary_Semaphore_Id) return int; |
| pragma Import ( |
| C, |
| Binary_Semaphore_Delete, |
| "__gnat_binary_semaphore_delete"); |
| |
| function Binary_Semaphore_Obtain (ID : Binary_Semaphore_Id) return int; |
| pragma Import ( |
| C, |
| Binary_Semaphore_Obtain, |
| "__gnat_binary_semaphore_obtain"); |
| |
| function Binary_Semaphore_Release (ID : Binary_Semaphore_Id) return int; |
| pragma Import ( |
| C, |
| Binary_Semaphore_Release, |
| "__gnat_binary_semaphore_release"); |
| |
| function Binary_Semaphore_Flush (ID : Binary_Semaphore_Id) return int; |
| pragma Import ( |
| C, |
| Binary_Semaphore_Flush, |
| "__gnat_binary_semaphore_flush"); |
| |
| ------------------------------------------------------------ |
| -- Hardware Interrupt Wrappers to Support Interrupt Tasks -- |
| ------------------------------------------------------------ |
| |
| type Interrupt_Handler is access procedure (parameter : System.Address); |
| pragma Convention (C, Interrupt_Handler); |
| type Interrupt_Vector is new System.Address; |
| |
| function Interrupt_Connect |
| (vector : Interrupt_Vector; |
| handler : Interrupt_Handler; |
| parameter : System.Address := System.Null_Address) return int; |
| pragma Import (C, Interrupt_Connect, "__gnat_interrupt_connect"); |
| -- Use this to set up an user handler. The routine installs a |
| -- a user handler which is invoked after RTEMS has saved enough |
| -- context for a high-level language routine to be safely invoked. |
| |
| function Interrupt_Vector_Get |
| (Vector : Interrupt_Vector) return Interrupt_Handler; |
| pragma Import (C, Interrupt_Vector_Get, "__gnat_interrupt_get"); |
| -- Use this to get the existing handler for later restoral. |
| |
| procedure Interrupt_Vector_Set |
| (Vector : Interrupt_Vector; |
| Handler : Interrupt_Handler); |
| pragma Import (C, Interrupt_Vector_Set, "__gnat_interrupt_set"); |
| -- Use this to restore a handler obtained using Interrupt_Vector_Get. |
| |
| function Interrupt_Number_To_Vector (intNum : int) return Interrupt_Vector; |
| -- Convert a logical interrupt number to the hardware interrupt vector |
| -- number used to connect the interrupt. |
| pragma Import ( |
| C, |
| Interrupt_Number_To_Vector, |
| "__gnat_interrupt_number_to_vector" |
| ); |
| |
| private |
| |
| type sigset_t is new int; |
| |
| 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 := System.OS_Constants.CLOCK_REALTIME; |
| CLOCK_MONOTONIC : constant clockid_t := System.OS_Constants.CLOCK_MONOTONIC; |
| |
| 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.double'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.double'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_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.int'Alignment; |
| |
| type pthread_t is new rtems_id; |
| |
| 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.double'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.size_t'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.C.size_t'Alignment; |
| |
| type pthread_key_t is new rtems_id; |
| |
| No_Key : constant pthread_key_t := 0; |
| |
| end System.OS_Interface; |
