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Diffstat (limited to 'gcc-4.4.0/gcc/ada/g-thread.ads')
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diff --git a/gcc-4.4.0/gcc/ada/g-thread.ads b/gcc-4.4.0/gcc/ada/g-thread.ads deleted file mode 100644 index b5825f39f..000000000 --- a/gcc-4.4.0/gcc/ada/g-thread.ads +++ /dev/null @@ -1,151 +0,0 @@ ------------------------------------------------------------------------------- --- -- --- GNAT RUN-TIME COMPONENTS -- --- -- --- G N A T . T H R E A D S -- --- -- --- S p e c -- --- -- --- Copyright (C) 1998-2007, AdaCore -- --- -- --- 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 2, 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. See the GNU General Public License -- --- for more details. You should have received a copy of the GNU General -- --- Public License distributed with GNAT; see file COPYING. If not, write -- --- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, -- --- Boston, MA 02110-1301, 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. -- --- -- --- GNAT was originally developed by the GNAT team at New York University. -- --- Extensive contributions were provided by Ada Core Technologies Inc. -- --- -- ------------------------------------------------------------------------------- - --- This package provides facilities for creation or registration of foreign --- threads for use as Ada tasks. In order to execute general Ada code, the --- run-time system must know about all tasks. This package allows foreign --- code, e.g. a C program, to create a thread that the Ada run-time knows --- about, or to register the current thread. - --- For some implementations of GNAT Pro, the registration of foreign threads --- is automatic. However, in such implementations, if the Ada program has no --- tasks at all and no tasking constructs other than delay, then by default --- the non-tasking version of the Ada run-time will be loaded. If foreign --- threads are present, it is important to ensure that the tasking version --- of the Ada run time is loaded. This may be achieved by adding "with --- GNAT.Threads" to any unit in the partition. - -with System; -with Ada.Task_Identification; - -package GNAT.Threads is - - type Void_Ptr is access all Integer; - - function Create_Thread - (Code : System.Address; -- pointer - Parm : Void_Ptr; -- pointer - Size : Natural; -- int - Prio : Integer) -- int - return System.Address; - pragma Export (C, Create_Thread, "__gnat_create_thread"); - -- Creates a thread with the given (Size) stack size in bytes, and - -- the given (Prio) priority. The task will execute a call to the - -- procedure whose address is given by Code. This procedure has - -- the prototype - -- - -- void thread_code (void *id, void *parm); - -- - -- where id is the id of the created task, and parm is the parameter - -- passed to Create_Thread. The called procedure is the body of the - -- code for the task, the task will be automatically terminated when - -- the procedure returns. - -- - -- This function returns the Ada Id of the created task that can then be - -- used as a parameter to the procedures below. - -- - -- C declaration: - -- - -- extern void *__gnat_create_thread - -- (void (*code)(void *, void *), void *parm, int size, int prio); - - function Register_Thread return System.Address; - pragma Export (C, Register_Thread, "__gnat_register_thread"); - -- Create an Ada task Id for the current thread if needed. - -- If the thread could not be registered, System.Null_Address is returned. - -- - -- This function returns the Ada Id of the current task that can then be - -- used as a parameter to the procedures below. - -- - -- C declaration: - -- - -- extern void *__gnat_register_thread (); - -- - -- Here is a typical usage of the Register/Unregister_Thread procedures: - -- - -- void thread_body () - -- { - -- void *task_id = __gnat_register_thread (); - -- ... thread body ... - -- __gnat_unregister_thread (); - -- } - - procedure Unregister_Thread; - pragma Export (C, Unregister_Thread, "__gnat_unregister_thread"); - -- Unregister the current task from the GNAT run time and destroy the - -- memory allocated for its task id. - -- - -- C declaration: - -- - -- extern void __gnat_unregister_thread (); - - procedure Unregister_Thread_Id (Thread : System.Address); - pragma Export (C, Unregister_Thread_Id, "__gnat_unregister_thread_id"); - -- Unregister the task associated with Thread from the GNAT run time and - -- destroy the memory allocated for its task id. - -- If no task id is associated with Thread, do nothing. - -- - -- C declaration: - -- - -- extern void __gnat_unregister_thread_id (pthread_t *thread); - - procedure Destroy_Thread (Id : System.Address); - pragma Export (C, Destroy_Thread, "__gnat_destroy_thread"); - -- This procedure may be used to prematurely abort the created thread. - -- The value Id is the value that was passed to the thread code procedure - -- at activation time. - -- - -- C declaration: - -- - -- extern void __gnat_destroy_thread (void *id); - - procedure Get_Thread (Id : System.Address; Thread : System.Address); - pragma Export (C, Get_Thread, "__gnat_get_thread"); - -- This procedure is used to retrieve the thread id of a given task. - -- The value Id is the value that was passed to the thread code procedure - -- at activation time. - -- Thread is a pointer to a thread id that will be updated by this - -- procedure. - -- - -- C declaration: - -- - -- extern void __gnat_get_thread (void *id, pthread_t *thread); - - function To_Task_Id - (Id : System.Address) - return Ada.Task_Identification.Task_Id; - -- Ada interface only. - -- Given a low level Id, as returned by Create_Thread, return a Task_Id, - -- so that operations in Ada.Task_Identification can be used. - -end GNAT.Threads; |