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Facilidade de uso
User-Level Native Thread Primitives (GThread Library)
02/15/2012
TABLE OF CONTENTS
1.
Introduction ......................................................................................................................................................... 3
1.1.
Overview ...................................................................................................................................................... 3
1.2.
Background and Definitions......................................................................................................................... 3
1.3.
Thread Model Variations ............................................................................................................................. 4
1.4.
User Thread Support .................................................................................................................................... 5
1.5.
Changes for TNS/E ...................................................................................................................................... 5
1.6.
Changes to Support Protected User Stacks .................................................................................................. 5
1.7.
Changes to Support 64-bit Addresses .......................................................................................................... 6
1.7.1.
__LP64 Macro ..................................................................................................................................... 6
2.
Thread Primitives ............................................................................................................................................... 7
2.1.
Thread Context ............................................................................................................................................. 7
2.2.
Declarations ................................................................................................................................................. 7
2.3.
Thread Structures ......................................................................................................................................... 7
2.4.
Alignment Considerations ............................................................................................................................ 9
2.5.
Literals and Defines ..................................................................................................................................... 9
2.6.
Setup and Initialization .............................................................................................................................. 13
2.7.
Initiation ..................................................................................................................................................... 14
2.8.
TNS/E Migration Aid ................................................................................................................................. 17
2.9.
Access Functions ........................................................................................................................................ 17
2.10.
Saving and Restoring Stacks ...................................................................................................................... 24
2.11.
Measuring and Checking Stack Usage ....................................................................................................... 25
2.11.1.
Thread Stack Usage ........................................................................................................................... 25
2.11.2.
Stack ‘Guard Area’ Protection .......................................................................................................... 26
2.12.
Context Manipulation................................................................................................................................. 28
2.13.
Termination ................................................................................................................................................ 30
3.
Usage .................................................................................................................................................................. 32
3.1.
Native Static ............................................................................................................................................... 32
3.2.
Swapped Master ......................................................................................................................................... 33
3.3.
Architecture-Selected Models .................................................................................................................... 37
3.4.
Mixed Models ............................................................................................................................................ 37
3.5.
Checkpointing ............................................................................................................................................ 38
3.6.
TNS/E Usage Changes ............................................................................................................................... 38
3.6.1.
Thread Setup and Initialization ......................................................................................................... 38
3.6.2.
Stack Allocation Control at Thread Initiation ................................................................................... 39
3.6.3.
Thread Switching (Context Manipulation) ........................................................................................ 41
540065-004
Page 2 of 44
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