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User-Level Native Thread Primitives (GThread Library)
03/31/2005
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
2.
THREAD PRIMITIVES ....................................................................................................................................7
2.1.
THREAD CONTEXT ........................................................................................................................................7
2.2.
DECLARATIONS.............................................................................................................................................7
2.3.
THREAD STRUCTURES...................................................................................................................................8
2.4.
ALIGNMENT CONSIDERATIONS......................................................................................................................9
2.5.
LITERALS AND DEFINES ..............................................................................................................................10
2.6.
SETUP AND INITIALIZATION .........................................................................................................................14
2.7.
INITIATION ..................................................................................................................................................15
2.8.
TNS/E MIGRATION AID ..............................................................................................................................17
2.9.
ACCESS FUNCTIONS ....................................................................................................................................18
2.10.
SAVING AND RESTORING STACKS ...............................................................................................................26
2.11.
MEASURING AND CHECKING STACK USAGE................................................................................................27
2.11.1.
Thread Stack Usage...........................................................................................................................27
2.11.2.
Stack ‘Guard Area’ Protection..........................................................................................................28
2.12.
CONTEXT MANIPULATION...........................................................................................................................30
2.13.
TERMINATION .............................................................................................................................................33
3.
USAGE...............................................................................................................................................................34
3.1.
NATIVE STATIC ...........................................................................................................................................34
3.2.
SWAPPED MASTER ......................................................................................................................................35
3.3.
ARCHITECTURE-SELECTED MODELS...........................................................................................................39
3.4.
MIXED MODELS ..........................................................................................................................................40
3.5.
CHECKPOINTING..........................................................................................................................................40
3.6.
TNS/E USAGE CHANGES ............................................................................................................................41
3.6.1.
Thread Setup and Initialization .........................................................................................................41
3.6.2.
Stack Allocation Control at Thread Initiation ...................................................................................41
3.6.3.
Thread Switching (Context Manipulation) ........................................................................................43
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