T-Kernel Specification (1.B0.02)

More documents

Recommendations

Info

196 CHAPTER 4. T-KERNEL/OS FUNCTIONS tk ena dsp Enable Dispatch [C Language Interface] ER ercd = tk_ena_dsp ( ) ; [Parameters] None [Return Parameters] ER ercd Error code [Error Codes] E OK E CTX Normal completion Context error (issued from task-independent portion) [Description] Enables task dispatching. This system call cancels the disabling of dispatching by the tk dis dsp system call. If tk ena dsp is called for a task not in dispatch disabled state, the dispatch enabled state continues and no error code is returned. Copyright c○ 2002, 2003 by T-Engine Forum T-Kernel 1.B0.02
4.9. SYSTEM MANAGEMENT FUNCTIONS 197 tk ref sys Reference System Status [C Language Interface] ER ercd = tk_ref_sys ( T_RSYS *pk_rsys ) ; [Parameters] T RSYS* pk rsys Address of packet for returning status information [Return Parameters] ER ercd Error code pk rsys detail: INT sysstat System status ID runtskid ID of task currently in RUN state ID schedtskid ID of task scheduled to run next (Other implementation-dependent parameters may be added beyond this point.) [Error Codes] E OK E PAR Normal completion Parameter error (the return parameter packet address cannot be used) [Description] Gets the current system execution status, passing in return parameters such information as the dispatch disabled state and whether a task-independent portion is executing. The following values are returned in sysstat. sysstat := ( TSS_TSK | [TSS_DDSP] | [TSS_DINT] ) || ( TSS_QTSK | [TSS_DDSP] | [TSS_DINT] ) || ( TSS_INDP ) TSS TSK TSS DDSP TSS DINT TSS INDP TSS QTSK Task portion executing Dispatch disabled Interrupts disabled Task-independent portion executing Quasi-task portion executing Copyright c○ 2002, 2003 by T-Engine Forum T-Kernel 1.B0.02
Page 1 and 2:
T-Kernel Specification T-Kernel 1.B
Page 3 and 4:
Contents 1 T-Kernel Overview 1 1.1
Page 5 and 6:
CONTENTS v tk set flg (Set Event Fl
Page 7 and 8:
CONTENTS vii 5.2.2 Address Space Ch
Page 9 and 10:
CONTENTS ix td cal que (Reference Q
Page 11 and 12:
List of Figures 1.1 Position of T-K
Page 13 and 14:
List of Tables 2.1 State Transition
Page 15 and 16:
System Call Notation In the parts o
Page 17 and 18:
Index of T-Kernel/OS System Calls T
Page 19 and 20:
INDEX OF T-KERNEL/OS SYSTEM CALLS x
Page 21 and 22:
Index of T-Kernel/SM Extended SVC L
Page 23 and 24:
Index of T-Kernel/DS System Calls T
Page 25 and 26:
Chapter 1 T-Kernel Overview 1.1 Pos
Page 27 and 28:
1.2. SCALABILITY 3 • Middleware m
Page 29 and 30:
Chapter 2 Concepts Underlying the T
Page 31 and 32:
2.2. TASK STATES AND SCHEDULING RUL
Page 33 and 34:
2.2. TASK STATES AND SCHEDULING RUL
Page 35 and 36:
2.3. INTERRUPT HANDLING 11 preceden
Page 37 and 38:
2.5. SYSTEM STATES 13 Transient sta
Page 39 and 40:
2.7. MEMORY 15 which the upper and
Page 41 and 42:
Chapter 3 Common T-Kernel Specifica
Page 43 and 44:
3.2. SYSTEM CALLS 19 /* * Common co
Page 45 and 46:
3.2. SYSTEM CALLS 21 Ordinarily a f
Page 47 and 48:
3.3. HIGH-LEVEL LANGUAGE SUPPORT RO
Page 49 and 50:
Chapter 4 T-Kernel/OS Functions Thi
Page 51 and 52:
4.1. TASK MANAGEMENT FUNCTIONS 27 t
Page 53 and 54:
4.1. TASK MANAGEMENT FUNCTIONS 29 #
Page 55 and 56:
Page 57 and 58:
Page 59 and 60:
Page 61 and 62:
Page 63 and 64:
Page 65 and 66:
Page 67 and 68:
Page 69 and 70:
Page 71 and 72:
Page 73 and 74:
Page 75 and 76:
Page 77 and 78:
4.2. TASK-DEPENDENT SYNCHRONIZATION
Page 79 and 80:
Page 81 and 82:
Page 83 and 84:
Page 85 and 86:
Page 87 and 88:
Page 89 and 90:
Page 91 and 92:
Page 93 and 94:
4.3. TASK EXCEPTION HANDLING FUNCTI
Page 95 and 96:
Page 97 and 98:
Page 99 and 100:
Page 101 and 102:
4.4. SYNCHRONIZATION AND COMMUNICAT
Page 103 and 104:
Page 105 and 106:
Page 107 and 108:
Page 109 and 110:
Page 111 and 112:
Page 113 and 114:
Page 115 and 116:
Page 117 and 118:
Page 119 and 120:
Page 121 and 122:
Page 123 and 124:
Page 125 and 126:
Page 127 and 128:
Page 129 and 130:
Page 131 and 132:
4.5. EXTENDED SYNCHRONIZATION AND C
Page 133 and 134:
Page 135 and 136:
Page 137 and 138:
Page 139 and 140:
Page 141 and 142:
Page 143 and 144:
Page 145 and 146:
Page 147 and 148:
Page 149 and 150:
Page 151 and 152:
Page 153 and 154:
Page 155 and 156:
Page 157 and 158:
Page 159 and 160:
Page 161 and 162:
Page 163 and 164:
Page 165 and 166:
Page 167 and 168:
Page 169 and 170: 4.5. EXTENDED SYNCHRONIZATION AND C
Page 171 and 172: 4.6. MEMORY POOL MANAGEMENT FUNCTIO
Page 187 and 188: 4.7. TIME MANAGEMENT FUNCTIONS 163
Page 209 and 210: 4.8. INTERRUPT MANAGEMENT FUNCTIONS
Page 215 and 216: 4.9. SYSTEM MANAGEMENT FUNCTIONS 19
Page 219: 4.9. SYSTEM MANAGEMENT FUNCTIONS 19
Page 229 and 230: 4.10. SUBSYSTEM MANAGEMENT FUNCTION
Page 243 and 244: Chapter 5 T-Kernel/SM Details of th
Page 245 and 246: 5.1. SYSTEM MEMORY MANAGEMENT FUNCT
Page 247 and 248: 5.2. ADDRESS SPACE MANAGEMENT FUNCT
Page 249 and 250: 5.2. ADDRESS SPACE MANAGEMENT FUNCT
Page 251 and 252: 5.3. DEVICE MANAGEMENT FUNCTIONS 22
Page 271 and 272:
5.3. DEVICE MANAGEMENT FUNCTIONS 24
Page 273 and 274:
5.4. INTERRUPT MANAGEMENT FUNCTIONS
Page 275 and 276:
5.5. IO PORT ACCESS SUPPORT FUNCTIO
Page 277 and 278:
5.7. SYSTEM CONFIGURATION INFORMATI
Page 279 and 280:
5.7. SYSTEM CONFIGURATION INFORMATI
Page 281:
5.8. SUBSYSTEM AND DEVICE DRIVER ST
Page 284 and 285:
260 CHAPTER 6. T-KERNEL/DS FUNCTION
Page 286 and 287:
Page 288 and 289:
Page 290 and 291:
Page 292 and 293:
Page 294 and 295:
Page 296 and 297:
Page 298 and 299:
Page 300 and 301:
Page 302 and 303:
Page 304 and 305:
Page 306 and 307:
Page 308 and 309:
284 CHAPTER 7. REFERENCE INT tevptn
Page 310 and 311:
286 CHAPTER 7. REFERENCE ER ercd =
Page 312 and 313:
288 CHAPTER 7. REFERENCE INT ct = t
Page 314:
290 CHAPTER 7. REFERENCE E OACV ERC
show all

T-Kernel Specification (1.B0.02)

Create successful ePaper yourself

Delete template?

Save as template?