projects / thirdparty / gcc.git / blame
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|---|---|---|
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1 | ------------------------------------------------------------------------------ |
| 2 | -- -- | |
| 3084fecd | 3 | -- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS -- |
| 84481f76 | 4 | -- -- |
| 15f6d6e7 | 5 | -- SYSTEM.TASK_PRIMITIVES.OPERATIONS.SPECIFIC -- |
| 84481f76 | 6 | -- -- |
| 3084fecd | 7 | -- B o d y -- |
| 84481f76 | 8 | -- -- |
| 748086b7 | 9 | -- Copyright (C) 1992-2009, Free Software Foundation, 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- -- | |
| 748086b7 JJ |
13 | -- ware Foundation; either version 3, or (at your option) any later ver- -- |
| 14 | -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- | |
| 84481f76 | 15 | -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- |
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16 | -- or FITNESS FOR A PARTICULAR PURPOSE. -- |
| 17 | -- -- | |
| 18 | -- As a special exception under Section 7 of GPL version 3, you are granted -- | |
| 19 | -- additional permissions described in the GCC Runtime Library Exception, -- | |
| 20 | -- version 3.1, as published by the Free Software Foundation. -- | |
| 21 | -- -- | |
| 22 | -- You should have received a copy of the GNU General Public License and -- | |
| 23 | -- a copy of the GCC Runtime Library Exception along with this program; -- | |
| 24 | -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- | |
| 25 | -- <http://www.gnu.org/licenses/>. -- | |
| 84481f76 | 26 | -- -- |
| fbf5a39b AC |
27 | -- GNARL was developed by the GNARL team at Florida State University. -- |
| 28 | -- Extensive contributions were provided by Ada Core Technologies, Inc. -- | |
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29 | -- -- |
| 30 | ------------------------------------------------------------------------------ | |
| 31 | ||
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32 | -- This is a VxWorks version of this package where foreign threads are |
| 33 | -- recognized. | |
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34 | |
| 35 | separate (System.Task_Primitives.Operations) | |
| fbf5a39b | 36 | package body Specific is |
| 84481f76 | 37 | |
| b9260c3d AC |
38 | ATCB_Key : aliased System.Address := System.Null_Address; |
| 39 | -- Key used to find the Ada Task_Id associated with a thread | |
| 40 | ||
| 41 | ATCB_Key_Addr : System.Address := ATCB_Key'Address; | |
| 42 | pragma Export (Ada, ATCB_Key_Addr, "__gnat_ATCB_key_addr"); | |
| 43 | -- Exported to support the temporary AE653 task registration | |
| 44 | -- implementation. This mechanism is used to minimize impact on other | |
| 45 | -- targets. | |
| 46 | ||
| 47 | ------------ | |
| 48 | -- Delete -- | |
| 49 | ------------ | |
| 50 | ||
| 51 | procedure Delete is | |
| 52 | Result : STATUS; | |
| 53 | begin | |
| 54 | Result := taskVarDelete (taskIdSelf, ATCB_Key'Access); | |
| 55 | pragma Assert (Result /= ERROR); | |
| 56 | end Delete; | |
| 57 | ||
| 58 | ---------------- | |
| 59 | -- Initialize -- | |
| 60 | ---------------- | |
| 61 | ||
| 62 | procedure Initialize is | |
| 63 | begin | |
| 64 | null; | |
| 65 | end Initialize; | |
| 66 | ||
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67 | ------------------- |
| 68 | -- Is_Valid_Task -- | |
| 69 | ------------------- | |
| 84481f76 | 70 | |
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71 | function Is_Valid_Task return Boolean is |
| 72 | begin | |
| 73 | return taskVarGet (taskIdSelf, ATCB_Key'Access) /= ERROR; | |
| 74 | end Is_Valid_Task; | |
| 84481f76 | 75 | |
| fbf5a39b AC |
76 | --------- |
| 77 | -- Set -- | |
| 78 | --------- | |
| 79 | ||
| b5e792e2 | 80 | procedure Set (Self_Id : Task_Id) is |
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81 | Result : STATUS; |
| 82 | ||
| 83 | begin | |
| 84 | if taskVarGet (0, ATCB_Key'Access) = ERROR then | |
| 85 | Result := taskVarAdd (0, ATCB_Key'Access); | |
| 86 | pragma Assert (Result = OK); | |
| 87 | end if; | |
| 88 | ||
| 89 | ATCB_Key := To_Address (Self_Id); | |
| 90 | end Set; | |
| 91 | ||
| 92 | ---------- | |
| 93 | -- Self -- | |
| 94 | ---------- | |
| 95 | ||
| b5e792e2 | 96 | function Self return Task_Id is |
| fbf5a39b | 97 | begin |
| b5e792e2 | 98 | return To_Task_Id (ATCB_Key); |
| fbf5a39b AC |
99 | end Self; |
| 100 | ||
| 101 | end Specific; |