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Diffstat (limited to 'gcc-4.2.1/gcc/ada/s-taspri-solaris.ads')
| -rw-r--r-- | gcc-4.2.1/gcc/ada/s-taspri-solaris.ads | 148 |
1 files changed, 0 insertions, 148 deletions
diff --git a/gcc-4.2.1/gcc/ada/s-taspri-solaris.ads b/gcc-4.2.1/gcc/ada/s-taspri-solaris.ads deleted file mode 100644 index e7ed41687..000000000 --- a/gcc-4.2.1/gcc/ada/s-taspri-solaris.ads +++ /dev/null @@ -1,148 +0,0 @@ ------------------------------------------------------------------------------- --- -- --- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS -- --- -- --- S Y S T E M . T A S K _ P R I M I T I V E S -- --- -- --- S p e c -- --- -- --- Copyright (C) 1992-2005, 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, 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. -- --- -- --- GNARL was developed by the GNARL team at Florida State University. -- --- Extensive contributions were provided by Ada Core Technologies, Inc. -- --- -- ------------------------------------------------------------------------------- - --- This is a Solaris version of this package - --- This package provides low-level support for most tasking features - -pragma Polling (Off); --- Turn off polling, we do not want ATC polling to take place during --- tasking operations. It causes infinite loops and other problems. - -with System.OS_Interface; --- used for mutex_t --- cond_t --- thread_t - -with Unchecked_Conversion; - -package System.Task_Primitives is - pragma Preelaborate; - - type Lock is limited private; - type Lock_Ptr is access all Lock; - -- Should be used for implementation of protected objects - - type RTS_Lock is limited private; - type RTS_Lock_Ptr is access all RTS_Lock; - -- Should be used inside the runtime system. The difference between Lock - -- and the RTS_Lock is that the later one serves only as a semaphore so - -- that do not check for ceiling violations. - - function To_Lock_Ptr is new Unchecked_Conversion (RTS_Lock_Ptr, Lock_Ptr); - - type Suspension_Object is limited private; - -- Should be used for the implementation of Ada.Synchronous_Task_Control - - type Task_Body_Access is access procedure; - -- Pointer to the task body's entry point (or possibly a wrapper - -- declared local to the GNARL). - - type Private_Data is limited private; - -- Any information that the GNULLI needs maintained on a per-task basis. - -- A component of this type is guaranteed to be included in the - -- Ada_Task_Control_Block. - -private - - type Private_Task_Serial_Number is mod 2 ** 64; - -- Used to give each task a unique serial number - - type Base_Lock is new System.OS_Interface.mutex_t; - - type Owner_Int is new Integer; - for Owner_Int'Alignment use Standard'Maximum_Alignment; - - type Owner_ID is access all Owner_Int; - - function To_Owner_ID is - new Unchecked_Conversion (System.Address, Owner_ID); - - type Lock is record - L : aliased Base_Lock; - Ceiling : System.Any_Priority := System.Any_Priority'First; - Saved_Priority : System.Any_Priority := System.Any_Priority'First; - Owner : Owner_ID; - Next : Lock_Ptr; - Level : Private_Task_Serial_Number := 0; - Buddy : Owner_ID; - Frozen : Boolean := False; - end record; - - type RTS_Lock is new Lock; - - type Suspension_Object is record - State : Boolean; - pragma Atomic (State); - -- Boolean that indicates whether the object is open. This field is - -- marked Atomic to ensure that we can read its value without locking - -- the access to the Suspension_Object. - - Waiting : Boolean; - -- Flag showing if there is a task already suspended on this object - - L : aliased System.OS_Interface.mutex_t; - -- Protection for ensuring mutual exclusion on the Suspension_Object - - CV : aliased System.OS_Interface.cond_t; - -- Condition variable used to queue threads until condition is signaled - end record; - - -- Note that task support on gdb relies on the fact that the first two - -- fields of Private_Data are Thread and LWP. - - type Private_Data is record - Thread : aliased System.OS_Interface.thread_t; - pragma Atomic (Thread); - -- Thread field may be updated by two different threads of control. - -- (See, Enter_Task and Create_Task in s-taprop.adb). They put the same - -- value (thr_self value). We do not want to use lock on those - -- operations and the only thing we have to make sure is that they are - -- updated in atomic fashion. - - LWP : System.OS_Interface.lwpid_t; - -- The LWP id of the thread. Set by self in Enter_Task - - CV : aliased System.OS_Interface.cond_t; - L : aliased RTS_Lock; - -- Protection for all components is lock L - - Active_Priority : System.Any_Priority := System.Any_Priority'First; - -- Simulated active priority, used iff Priority_Ceiling_Support is True - - Locking : Lock_Ptr; - Locks : Lock_Ptr; - Wakeups : Natural := 0; - end record; - -end System.Task_Primitives; |