T-Kernel Specification (1.B0.02)

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76 CHAPTER 4. T-KERNEL/OS FUNCTIONS tk ref tex Reference Task Exception Status [C Language Interface] ER ercd = tk_ref_tex ( ID tskid, T_RTEX *pk_rtex ) ; [Parameters] ID tskid Task ID T RTEX* pk rtex Address of packet for returning task exception status [Return Parameters] ER ercd Error code pk rtex detail: UINT pendtex Pending task exceptions UINT texmask Allowed task exceptions (Other implementation-dependent parameters may be added beyond this point.) [Error Codes] E OK E ID E NOEXS E PAR Normal completion Invalid ID number (tskid is invalid or cannot be used) Object does not exist (the task designated in tskid does not exist) Parameter error (the return parameter packet address cannot be used) [Description] Gets the status of task exceptions for the task designated in tskid. pendtex indicates the currently pending task exceptions. A raised task exception is indicated in pendtex from the time the task exception is raised until its task exception handler is called. texmask indicates allowed task exceptions. Both pendtex and texmask are bit arrays of the form 1
4.4. SYNCHRONIZATION AND COMMUNICATION FUNCTIONS 77 4.4 Synchronization and Communication Functions Synchronization and communication functions use objects independent of tasks used to synchronize tasks and achieve communication between tasks. The objects available for these purposes include semaphores, event flags, and mailboxes. Copyright c○ 2002, 2003 by T-Engine Forum T-<strong>Kernel</strong> <strong>1.B0.02</strong>
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T-Kernel Specification T-Kernel 1.B
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Contents 1 T-Kernel Overview 1 1.1
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CONTENTS v tk set flg (Set Event Fl
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CONTENTS vii 5.2.2 Address Space Ch
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CONTENTS ix td cal que (Reference Q
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List of Figures 1.1 Position of T-K
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List of Tables 2.1 State Transition
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System Call Notation In the parts o
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Index of T-Kernel/OS System Calls T
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INDEX OF T-KERNEL/OS SYSTEM CALLS x
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Index of T-Kernel/SM Extended SVC L
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Index of T-Kernel/DS System Calls T
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Chapter 1 T-Kernel Overview 1.1 Pos
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1.2. SCALABILITY 3 • Middleware m
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Chapter 2 Concepts Underlying the T
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2.2. TASK STATES AND SCHEDULING RUL
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2.2. TASK STATES AND SCHEDULING RUL
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2.3. INTERRUPT HANDLING 11 preceden
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2.5. SYSTEM STATES 13 Transient sta
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2.7. MEMORY 15 which the upper and
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Chapter 3 Common T-Kernel Specifica
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3.2. SYSTEM CALLS 19 /* * Common co
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3.2. SYSTEM CALLS 21 Ordinarily a f
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3.3. HIGH-LEVEL LANGUAGE SUPPORT RO
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4.5. EXTENDED SYNCHRONIZATION AND C
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4.6. MEMORY POOL MANAGEMENT FUNCTIO
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4.7. TIME MANAGEMENT FUNCTIONS 163
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4.8. INTERRUPT MANAGEMENT FUNCTIONS
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4.9. SYSTEM MANAGEMENT FUNCTIONS 19
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4.10. SUBSYSTEM MANAGEMENT FUNCTION
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Chapter 5 T-Kernel/SM Details of th
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5.1. SYSTEM MEMORY MANAGEMENT FUNCT
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5.2. ADDRESS SPACE MANAGEMENT FUNCT
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5.2. ADDRESS SPACE MANAGEMENT FUNCT
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5.3. DEVICE MANAGEMENT FUNCTIONS 22
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5.5. IO PORT ACCESS SUPPORT FUNCTIO
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5.7. SYSTEM CONFIGURATION INFORMATI
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5.7. SYSTEM CONFIGURATION INFORMATI
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5.8. SUBSYSTEM AND DEVICE DRIVER ST
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260 CHAPTER 6. T-KERNEL/DS FUNCTION
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284 CHAPTER 7. REFERENCE INT tevptn
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286 CHAPTER 7. REFERENCE ER ercd =
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288 CHAPTER 7. REFERENCE INT ct = t
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290 CHAPTER 7. REFERENCE E OACV ERC
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