git://gcc.gnu.org / gcc.git / blame
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1 | ------------------------------------------------------------------------------ |
| 2 | -- -- | |
| 3 | -- GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS -- | |
| 4 | -- -- | |
| 07fc65c4 | 5 | -- SYSTEM.TASK_PRIMITIVES.OPERATIONS.SPECIFIC -- |
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6 | -- -- |
| 7 | -- B o d y -- | |
| 8 | -- -- | |
| fbf5a39b | 9 | -- Copyright (C) 1992-2002, Free Software Fundation, Inc. -- |
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10 | -- -- |
| 11 | -- GNARL is free software; you can redistribute it and/or modify it under -- | |
| 12 | -- terms of the GNU General Public License as published by the Free Soft- -- | |
| 13 | -- ware Foundation; either version 2, or (at your option) any later ver- -- | |
| 14 | -- sion. GNARL is distributed in the hope that it will be useful, but WITH- -- | |
| 15 | -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- | |
| 16 | -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- | |
| 17 | -- for more details. You should have received a copy of the GNU General -- | |
| 18 | -- Public License distributed with GNARL; see file COPYING. If not, write -- | |
| 19 | -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, -- | |
| 20 | -- MA 02111-1307, USA. -- | |
| 21 | -- -- | |
| 22 | -- As a special exception, if other files instantiate generics from this -- | |
| 23 | -- unit, or you link this unit with other files to produce an executable, -- | |
| 24 | -- this unit does not by itself cause the resulting executable to be -- | |
| 25 | -- covered by the GNU General Public License. This exception does not -- | |
| 26 | -- however invalidate any other reasons why the executable file might be -- | |
| 27 | -- covered by the GNU Public License. -- | |
| 28 | -- -- | |
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29 | -- GNARL was developed by the GNARL team at Florida State University. -- |
| 30 | -- Extensive contributions were provided by Ada Core Technologies, Inc. -- | |
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31 | -- -- |
| 32 | ------------------------------------------------------------------------------ | |
| 33 | ||
| fbf5a39b | 34 | -- This is a POSIX-like version of this package. |
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35 | |
| 36 | separate (System.Task_Primitives.Operations) | |
| 37 | package body Specific is | |
| 38 | ||
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39 | ---------------- |
| 40 | -- Initialize -- | |
| 41 | ---------------- | |
| 42 | ||
| 43 | procedure Initialize (Environment_Task : Task_ID) is | |
| fbf5a39b | 44 | pragma Warnings (Off, Environment_Task); |
| 84481f76 | 45 | Result : Interfaces.C.int; |
| fbf5a39b | 46 | |
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47 | begin |
| 48 | Result := pthread_key_create (ATCB_Key'Access, null); | |
| 49 | pragma Assert (Result = 0); | |
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50 | end Initialize; |
| 51 | ||
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52 | ------------------- |
| 53 | -- Is_Valid_Task -- | |
| 54 | ------------------- | |
| 55 | ||
| 56 | function Is_Valid_Task return Boolean is | |
| 57 | begin | |
| 58 | return pthread_getspecific (ATCB_Key) /= System.Null_Address; | |
| 59 | end Is_Valid_Task; | |
| 60 | ||
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61 | --------- |
| 62 | -- Set -- | |
| 63 | --------- | |
| 64 | ||
| 65 | procedure Set (Self_Id : Task_ID) is | |
| 07fc65c4 | 66 | Result : Interfaces.C.int; |
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67 | |
| 68 | begin | |
| 69 | Result := pthread_setspecific (ATCB_Key, To_Address (Self_Id)); | |
| 70 | pragma Assert (Result = 0); | |
| 71 | end Set; | |
| 72 | ||
| 73 | ---------- | |
| 74 | -- Self -- | |
| 75 | ---------- | |
| 76 | ||
| 77 | function Self return Task_ID is | |
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78 | |
| 79 | begin | |
| fbf5a39b | 80 | return To_Task_Id (pthread_getspecific (ATCB_Key)); |
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81 | end Self; |
| 82 | ||
| 83 | end Specific; |