author | Jan Vrany <jan.vrany@fit.cvut.cz> |
Mon, 09 Jun 2014 10:28:46 +0100 | |
changeset 10 | f04a22c9b16c |
parent 9 | 5cc8797f6523 |
child 11 | 474fbb650afe |
permissions | -rw-r--r-- |
0 | 1 |
"{ Package: 'jv:libgdbs' }" |
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Object subclass:#GDBDriver |
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instanceVariableNames:'pid debuggerInput debuggerOutput inferiorInput inferiorOutput |
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eventAnnouncer eventQueue eventQueueLock eventQueueNotifier |
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eventDispatchProcess eventPumpProcess' |
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classVariableNames:'' |
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poolDictionaries:'GDBDebugFlags' |
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category:'GDB-Private' |
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!GDBDriver class methodsFor:'instance creation'! |
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debuggerPid:pidArg debuggerInput:inputArg debuggerOutput:outputArg inferiorInput:inferiorInputArg inferiorOutput:inferiorOutputArg |
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^ self new |
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initializeWithDebuggerPid:pidArg |
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debuggerInput:inputArg |
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debuggerOutput:outputArg |
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inferiorInput:inferiorInputArg |
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inferiorOutput:inferiorOutputArg |
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"Created: / 26-05-2014 / 13:35:58 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
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"Modified: / 09-06-2014 / 09:20:33 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
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! ! |
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!GDBDriver methodsFor:'accessing'! |
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eventAnnouncer |
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^ eventAnnouncer |
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! |
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inferiorInput |
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^ inferiorInput |
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! |
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inferiorOutput |
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^ inferiorOutput |
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! ! |
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!GDBDriver methodsFor:'event dispatching'! |
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eventDispatchLoop |
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"raise an error: this method should be implemented (TODO)" |
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[ |
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| eventQueueEmpty | |
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eventQueueEmpty := false. |
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[ eventQueueEmpty ] whileFalse:[ |
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| event | |
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event := nil. |
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eventQueueLock critical:[ |
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eventQueueEmpty := eventQueue isEmpty. |
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eventQueueEmpty ifFalse:[ |
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event := eventQueue removeFirst. |
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] |
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]. |
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eventQueueEmpty ifFalse:[ |
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[ |
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self eventDispatchSingle: event. |
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] on: Error do:[:ex | |
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"/ Pass |
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]. |
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]. |
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]. |
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pid isNil ifTrue:[ ^ self ]. "/ gdb process terninated |
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eventQueueNotifier wait. |
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] loop. |
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"Created: / 02-06-2014 / 22:51:48 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
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"Modified (comment): / 04-06-2014 / 09:16:12 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
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! |
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eventDispatchSingle: aGDBEvent |
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TraceEvents ifTrue:[ |
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Logger log: ('event loop: broadcasting %1 (%2)' bindWith: aGDBEvent class name with: aGDBEvent token) severity: #trace facility: 'GDB' |
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]. |
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eventAnnouncer announce: aGDBEvent |
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"Created: / 02-06-2014 / 22:58:20 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
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"Modified: / 04-06-2014 / 09:21:21 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
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! |
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eventDispatchStart |
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eventDispatchProcess isNil ifTrue:[ |
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eventDispatchProcess := [ |
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TraceEvents ifTrue:[ |
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Logger log: 'event loop: starting' severity: #trace facility: 'GDB' |
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]. |
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self eventDispatchLoop. |
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] newProcess. |
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eventDispatchProcess name:('GDB Event dispatcher (%1)' bindWith:pid). |
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eventDispatchProcess priority:Processor userBackgroundPriority. |
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eventDispatchProcess addExitAction:[ |
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eventDispatchProcess := nil. |
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TraceEvents ifTrue:[ |
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Logger log: 'event loop: terminated' severity: #trace facility: 'GDB' |
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]. |
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]. |
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eventDispatchProcess resume. |
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]. |
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"Created: / 02-06-2014 / 22:51:48 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
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"Modified: / 04-06-2014 / 09:27:04 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
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! |
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eventDispatchStop |
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| t | |
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t := eventDispatchProcess. |
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(t notNil and:[ t isDead not]) ifTrue:[ |
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eventDispatchProcess := nil. |
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t terminate. |
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"/ raise its prio to make it terminate quickly |
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t priority:(Processor userSchedulingPriority + 1) |
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]. |
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"Created: / 02-06-2014 / 22:52:51 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
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! ! |
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122 |
|
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123 |
!GDBDriver methodsFor:'event handling'! |
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124 |
|
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125 |
onCommand: aGDBCommandEvent |
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| command | |
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127 |
|
7
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128 |
command := aGDBCommandEvent command. |
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129 |
command token notNil ifTrue:[ |
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130 |
debuggerInput nextPutAll: command token printString. |
7
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131 |
]. |
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132 |
debuggerInput nextPutLine: command asString. |
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133 |
|
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134 |
"Created: / 02-06-2014 / 23:38:59 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
2
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135 |
! ! |
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136 |
|
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137 |
!GDBDriver methodsFor:'event pump'! |
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138 |
|
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139 |
eventPumpLoop |
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140 |
| parser | |
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141 |
|
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142 |
parser := GDBParser on: debuggerOutput. |
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143 |
[ debuggerOutput atEnd ] whileFalse:[ |
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144 |
| eventset | |
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145 |
|
8
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146 |
[ |
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147 |
[ |
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148 |
eventset := parser parseOutput. |
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149 |
] on: StreamNotOpenError do:[ |
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150 |
^ self. |
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151 |
]. |
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152 |
self pushEventSet: eventset. |
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153 |
] on: AbortOperationRequest do:[ |
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154 |
| terminator i c | |
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155 |
|
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156 |
terminator := '(gdb)'. |
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157 |
i := 1. |
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158 |
debuggerOutput notNil ifTrue:[ |
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159 |
[ debuggerOutput atEnd not and: [i <= terminator size ] ] whileTrue:[ |
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160 |
c := debuggerOutput next. |
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161 |
c == (terminator at: i) ifTrue:[ |
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162 |
i := i + 1. |
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163 |
] ifFalse:[ |
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164 |
i := 1. |
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165 |
]. |
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166 |
]. |
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|
167 |
debuggerOutput next. "/ read nl. |
8
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|
168 |
] ifFalse:[ |
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169 |
^ self. |
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170 |
]. |
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171 |
] |
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172 |
] |
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173 |
|
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174 |
"Created: / 02-06-2014 / 22:38:41 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
8
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|
175 |
"Modified: / 03-06-2014 / 00:54:11 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
7
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176 |
! |
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|
177 |
|
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178 |
eventPumpStart |
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|
179 |
eventPumpProcess isNil ifTrue:[ |
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180 |
eventPumpProcess := [ |
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|
181 |
TraceEvents ifTrue:[ |
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|
182 |
Logger log: 'event pump: starting' severity: #trace facility: 'GDB' |
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183 |
]. |
7
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|
184 |
self eventPumpLoop |
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|
185 |
] newProcess. |
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|
186 |
eventPumpProcess name:('GDB Event pump (%1)' bindWith:pid). |
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|
187 |
eventPumpProcess priority:Processor userBackgroundPriority. |
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188 |
eventPumpProcess addExitAction:[ |
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|
189 |
TraceEvents ifTrue:[ |
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|
190 |
Logger log: 'event pump: terminated' severity: #trace facility: 'GDB' |
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|
191 |
]. |
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|
192 |
eventPumpProcess := nil. |
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|
193 |
]. |
8
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|
194 |
eventPumpProcess resume. |
7
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|
195 |
]. |
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Initial implementation of event dispatcher and event pump.
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|
196 |
|
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|
197 |
"Created: / 02-06-2014 / 22:38:41 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
9
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|
198 |
"Modified: / 04-06-2014 / 09:27:12 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
7
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199 |
! |
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|
200 |
|
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Initial implementation of event dispatcher and event pump.
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|
201 |
eventPumpStop |
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|
202 |
| t | |
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Initial implementation of event dispatcher and event pump.
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|
203 |
|
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Initial implementation of event dispatcher and event pump.
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|
204 |
t := eventPumpProcess. |
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Initial implementation of event dispatcher and event pump.
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|
205 |
(t notNil and:[ t isDead not]) ifTrue:[ |
7a51f98e7162
Initial implementation of event dispatcher and event pump.
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|
206 |
eventPumpProcess := nil. |
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Initial implementation of event dispatcher and event pump.
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|
207 |
t terminate. |
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Initial implementation of event dispatcher and event pump.
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|
208 |
"/ raise its prio to make it terminate quickly |
7a51f98e7162
Initial implementation of event dispatcher and event pump.
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|
209 |
t priority:(Processor userSchedulingPriority + 1) |
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|
210 |
]. |
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Initial implementation of event dispatcher and event pump.
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|
211 |
|
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Initial implementation of event dispatcher and event pump.
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|
212 |
"Created: / 02-06-2014 / 22:40:38 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
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Initial implementation of event dispatcher and event pump.
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|
213 |
! ! |
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Initial implementation of event dispatcher and event pump.
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|
214 |
|
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Initial implementation of event dispatcher and event pump.
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|
215 |
!GDBDriver methodsFor:'events'! |
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|
216 |
|
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Initial implementation of event dispatcher and event pump.
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|
217 |
pushEvent: aGDBEvent |
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|
218 |
eventQueueLock critical:[ |
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Initial implementation of event dispatcher and event pump.
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|
219 |
eventQueue add: aGDBEvent. |
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|
220 |
eventQueueNotifier signalForAll. |
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Initial implementation of event dispatcher and event pump.
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|
221 |
]. |
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Initial implementation of event dispatcher and event pump.
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|
222 |
|
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Initial implementation of event dispatcher and event pump.
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|
223 |
"Created: / 02-06-2014 / 22:49:49 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
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Initial implementation of event dispatcher and event pump.
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|
224 |
! |
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Initial implementation of event dispatcher and event pump.
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|
225 |
|
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Initial implementation of event dispatcher and event pump.
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|
226 |
pushEventSet: aGDBEventSet |
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Initial implementation of event dispatcher and event pump.
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|
227 |
eventQueueLock critical:[ |
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Initial implementation of event dispatcher and event pump.
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|
228 |
eventQueue addAll: aGDBEventSet. |
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Initial implementation of event dispatcher and event pump.
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|
229 |
eventQueueNotifier signalForAll. |
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|
230 |
]. |
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Initial implementation of event dispatcher and event pump.
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|
231 |
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"Created: / 02-06-2014 / 22:42:54 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
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! ! |
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!GDBDriver methodsFor:'initialize & release'! |
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initializeWithDebuggerPid:pidArg debuggerInput:inputArg debuggerOutput:outputArg inferiorInput:inferiorInputArg inferiorOutput:inferiorOutputArg |
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pid := pidArg. |
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debuggerInput := inputArg. |
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debuggerOutput := outputArg. |
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inferiorInput := inferiorInputArg. |
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inferiorOutput := inferiorOutputArg. |
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eventQueue := OrderedCollection new. |
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eventQueueLock := RecursionLock new. |
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eventQueueNotifier := Semaphore new. |
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eventAnnouncer := Announcer new. |
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eventAnnouncer |
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when:GDBCommandEvent |
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send:#onCommand: |
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to:self. |
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"Created: / 26-05-2014 / 13:35:19 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
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"Modified: / 09-06-2014 / 09:14:14 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
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! |
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release |
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pid notNil ifTrue:[ |
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OperatingSystem sendSignal:(OperatingSystem sigKILL) to:pid. |
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] |
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"Created: / 26-05-2014 / 21:30:30 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
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"Modified: / 03-06-2014 / 00:55:22 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
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! |
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released: status |
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TraceProcesses ifTrue:[ |
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Logger log: ('gdb process: terminated with status %1' bindWith: status code) severity: #trace facility: 'GDB'. |
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]. |
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TraceProcesses ifTrue:[ |
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Logger log: ('gdb process: waiting for event pump to finish' bindWith: status code) severity: #trace facility: 'GDB'. |
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]. |
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[ eventPumpProcess notNil ] whileTrue:[ |
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Delay waitForMilliseconds: 200. |
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]. |
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TraceProcesses ifTrue:[ |
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Logger log: ('gdb process: event pump finished' bindWith: status code) severity: #trace facility: 'GDB'. |
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]. |
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pid := nil. |
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eventQueueNotifier signalForAll. |
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debuggerInput notNil ifTrue:[ |
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debuggerInput close. |
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debuggerInput := nil. |
1 | 283 |
]. |
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debuggerOutput notNil ifTrue:[ |
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debuggerOutput close. |
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debuggerOutput := nil. |
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]. |
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"Created: / 26-05-2014 / 21:31:00 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
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"Modified: / 04-06-2014 / 09:20:47 / Jan Vrany <jan.vrany@fit.cvut.cz>" |
0 | 291 |
! ! |
292 |
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Initial implementation of event dispatcher and event pump.
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!GDBDriver class methodsFor:'documentation'! |
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version_HG |
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^ '$Changeset: <not expanded> $' |
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! ! |
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