RW-BT-KERNEL-SW-FS.pdf

【核心代码】

1 Table of contents
Revision History ......................................................................................................................................................... 2
1 Table of contents............................................................................................................................................... 3
2 List of Tables...................................................................................................................................................... 4
3 Overview ........................................................................................................................................................... 5
3.1 Feature List...........................................................................................................................................................5
3.2 Source File Structure............................................................................................................................................5
3.3 Include Files .........................................................................................................................................................5
3.4 Kernel Environment .............................................................................................................................................6
4 Messages........................................................................................................................................................... 7
4.1 Overview ..............................................................................................................................................................7
4.2 Message Object....................................................................................................................................................7
4.3 Message Identifier ...............................................................................................................................................7
4.4 Parameter Management......................................................................................................................................8
4.5 Message Queue Object........................................................................................................................................8
4.6 Message Queue Primitives...................................................................................................................................8
4.6.1 Message Allocation ........................................................................................................................................8
4.6.2 Message Send.................................................................................................................................................9
4.6.3 Message Send Basic .......................................................................................................................................9
4.6.4 Message Forward .........................................................................................................................................10
4.6.5 Message Free ...............................................................................................................................................10
5 Scheduler......................................................................................................................................................... 11
5.1 Overview ............................................................................................................................................................11
5.2 Requirements.....................................................................................................................................................11
5.2.1 Priority Management ...................................................................................................................................11
5.2.2 Scheduling Algorithm ...................................................................................................................................12
5.2.3 Save Service..................................................................................................................................................12
6 Tasks................................................................................................................................................................ 13
6.1 Definition ...........................................................................................................................................................13
7 Kernel Timer .................................................................................................................................................... 14
7.1 Overview ............................................................................................................................................................14
7.2 Time definition...................................................................................................................................................14
7.3 Timer Object ......................................................................................................................................................14
7.4 Timer Setting......................................................................................................................................................14
7.5 Timer Primitives.................................................................................................................................................15
7.5.1 Timer Set ......................................................................................................................................................15
7.5.2 Timer Clear...................................................................................................................................................15
7.5.3 Timer Activity ...............................................................................................................................................16
7.5.4 Timer Expiry..................................................................................................................................................16
8 Effective Macros .............................................................................................................................................. 17