Wrap generated driver code in 'catch' and handle_exception blocks
This commit is contained in:
Douglas Clowes
@@ -7,67 +7,79 @@ namespace eval ::scobj::tank {
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}
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proc ::scobj::tank::debug_log {debug_level debug_string} {
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if {${debug_level} >= ${::scobj::tank::debug_threshold}} {
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set fd [open "/tmp/tank.log" "a"]
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set line "[clock format [clock seconds] -format "%T"] ${debug_string}"
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puts ${fd} "${line}"
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close ${fd}
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}
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set catch_status [ catch {
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if {${debug_level} >= ${::scobj::tank::debug_threshold}} {
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set fd [open "/tmp/tank.log" "a"]
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set line "[clock format [clock seconds] -format "%T"] ${debug_string}"
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puts ${fd} "${line}"
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close ${fd}
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}
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} catch_message ]
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}
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# check function for hset change
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proc ::scobj::tank::checkrange {tc_root} {
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debug_log 1 "checkrange tc_root=${tc_root} sct=[sct] target=[sct target]"
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set setpoint [sct target]
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if { [hpropexists [sct] lowerlimit] } {
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set lolimit [sct lowerlimit]
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} else {
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# lowerlimit not set, use target
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set lolimit [sct target]
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}
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if { [hpropexists [sct] upperlimit] } {
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set hilimit [sct upperlimit]
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} else {
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# upperlimit not set, use target
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set hilimit [sct target]
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}
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if { ${setpoint} < ${lolimit} || ${setpoint} > ${hilimit} } {
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error "setpoint ${setpoint} violates limits (${lolimit}..${hilimit}) on [sct]"
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}
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return OK
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set catch_status [ catch {
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debug_log 1 "checkrange tc_root=${tc_root} sct=[sct] target=[sct target]"
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set setpoint [sct target]
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if { [hpropexists [sct] lowerlimit] } {
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set lolimit [sct lowerlimit]
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} else {
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# lowerlimit not set, use target
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set lolimit [sct target]
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}
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if { [hpropexists [sct] upperlimit] } {
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set hilimit [sct upperlimit]
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} else {
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# upperlimit not set, use target
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set hilimit [sct target]
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}
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if { ${setpoint} < ${lolimit} || ${setpoint} > ${hilimit} } {
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error "setpoint ${setpoint} violates limits (${lolimit}..${hilimit}) on [sct]"
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}
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return OK
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} catch_message ]
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handle_exception ${catch_status} ${catch_message}
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}
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# function to request the read of a parameter on a device
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proc ::scobj::tank::getValue {tc_root nextState cmd_str} {
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debug_log 1 "getValue tc_root=${tc_root} sct=[sct] cmd=${cmd_str}"
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if { [hpropexists [sct] geterror] } {
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hdelprop [sct] geterror
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}
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set cmd "${cmd_str}"
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debug_log 1 "getValue sct send ${cmd}"
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sct send "${cmd}"
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return ${nextState}
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set catch_status [ catch {
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debug_log 1 "getValue tc_root=${tc_root} sct=[sct] cmd=${cmd_str}"
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if { [hpropexists [sct] geterror] } {
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hdelprop [sct] geterror
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}
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set cmd "${cmd_str}"
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debug_log 1 "getValue sct send ${cmd}"
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sct send "${cmd}"
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return ${nextState}
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} catch_message ]
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handle_exception ${catch_status} ${catch_message}
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}
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# function to check the write parameter on a device
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proc ::scobj::tank::noResponse {tc_root} {
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debug_log 1 "noResponse tc_root=${tc_root} sct=[sct] resp=[sct result]"
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return "idle"
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set catch_status [ catch {
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debug_log 1 "noResponse tc_root=${tc_root} sct=[sct] resp=[sct result]"
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return "idle"
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} catch_message ]
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handle_exception ${catch_status} ${catch_message}
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}
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# function to parse the read of a parameter on a device
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proc ::scobj::tank::read_switch {tc_root} {
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debug_log 1 "read_switch tc_root=${tc_root} sct=[sct] result=[sct result]"
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if { [hpropexists [sct] geterror] } {
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hdelprop [sct] geterror
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}
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set data [sct result]
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set nextState "idle"
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if {[string equal -nocase -length 7 ${data} "ASCERR:"]} {
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# the protocol driver has reported an error
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sct geterror "${data}"
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return -code error "[sct geterror]"
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}
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set catch_status [ catch {
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debug_log 1 "read_switch tc_root=${tc_root} sct=[sct] result=[sct result]"
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if { [hpropexists [sct] geterror] } {
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hdelprop [sct] geterror
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}
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set data [sct result]
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set nextState "idle"
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if {[string equal -nocase -length 7 ${data} "ASCERR:"]} {
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# the protocol driver has reported an error
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sct geterror "${data}"
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error "[sct geterror]"
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}
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# hook code starts
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if { [string equal -nocase -length 1 "${data}" "?"] } {
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sct geterror "Galil error in: '${data}'"
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@@ -88,37 +100,42 @@ proc ::scobj::tank::read_switch {tc_root} {
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}
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}
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# hook code ends
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if { [hpropexists [sct] geterror] } {
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debug_log 1 "[sct] error: [sct geterror]"
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return -code error "[sct geterror]"
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}
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if { ${data} != [sct oldval] } {
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debug_log 1 "[sct] changed to new:${data}, from old:[sct oldval]"
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sct oldval ${data}
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sct update ${data}
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sct utime readtime
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if { [hpropexists [sct] geterror] } {
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debug_log 1 "[sct] error: [sct geterror]"
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error "[sct geterror]"
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}
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return ${nextState}
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if { ${data} != [sct oldval] } {
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debug_log 1 "[sct] changed to new:${data}, from old:[sct oldval]"
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sct oldval ${data}
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sct update ${data}
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sct utime readtime
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}
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return ${nextState}
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} catch_message ]
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handle_exception ${catch_status} ${catch_message}
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}
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# function to write a parameter value on a device
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proc ::scobj::tank::setValue {tc_root nextState cmd_str} {
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debug_log 1 "setValue tc_root=${tc_root} sct=[sct] cmd=${cmd_str}"
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if { [hpropexists [sct] geterror] } {
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hdelprop [sct] geterror
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}
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set par [sct target]
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set cmd "${cmd_str}${par}"
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if { [hpropexists [sct] driving] } {
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if { [hpropexists [sct] writestatus] && [sct writestatus] == "start" } {
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sct driving 1
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set catch_status [ catch {
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debug_log 1 "setValue tc_root=${tc_root} sct=[sct] cmd=${cmd_str}"
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if { [hpropexists [sct] geterror] } {
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hdelprop [sct] geterror
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}
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}
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debug_log 1 "setValue sct send ${cmd}"
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if {![string equal -nocase -length 10 ${cmd} "@@NOSEND@@"]} {
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sct send "${cmd}"
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}
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return ${nextState}
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set par [sct target]
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set cmd "${cmd_str}${par}"
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if { [hpropexists [sct] driving] } {
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if { [hpropexists [sct] writestatus] && [sct writestatus] == "start" } {
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sct driving 1
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}
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}
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debug_log 1 "setValue sct send ${cmd}"
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if {![string equal -nocase -length 10 ${cmd} "@@NOSEND@@"]} {
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sct send "${cmd}"
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}
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return ${nextState}
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} catch_message ]
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handle_exception ${catch_status} ${catch_message}
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}
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proc ::scobj::tank::mk_sct_tank { sct_controller name } {
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@@ -186,7 +203,7 @@ proc ::scobj::tank::mk_sct_tank { sct_controller name } {
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# hook code starts
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# hook code ends
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} catch_message ]
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handle_exception ${catch_status} ${catch_message} "in ${ns}::mk_sct_tank"
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handle_exception ${catch_status} ${catch_message}
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}
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namespace eval ::scobj::tank {
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@@ -195,20 +212,23 @@ namespace eval ::scobj::tank {
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}
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proc add_tank {name IP port} {
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set ns "::scobj::tank"
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${ns}::debug_log 1 "add_tank ${name} ${IP} ${port}"
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if {[SplitReply [motor_simulation]]=="false"} {
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if {[string equal -nocase "aqadapter" "${IP}"]} {
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${ns}::debug_log 1 "makesctcontroller sct_${name} aqadapter ${port}"
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makesctcontroller sct_${name} aqadapter ${port}
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} else {
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${ns}::debug_log 1 "makesctcontroller sct_${name} dmc2280 ${IP}:${port}"
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makesctcontroller sct_${name} dmc2280 ${IP}:${port}
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set catch_status [ catch {
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set ns "::scobj::tank"
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${ns}::debug_log 1 "add_tank ${name} ${IP} ${port}"
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if {[SplitReply [motor_simulation]]=="false"} {
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if {[string equal -nocase "aqadapter" "${IP}"]} {
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${ns}::debug_log 1 "makesctcontroller sct_${name} aqadapter ${port}"
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makesctcontroller sct_${name} aqadapter ${port}
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} else {
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${ns}::debug_log 1 "makesctcontroller sct_${name} dmc2280 ${IP}:${port}"
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makesctcontroller sct_${name} dmc2280 ${IP}:${port}
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}
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}
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}
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${ns}::debug_log 1 "mk_sct_tank sct_${name} ${name}"
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${ns}::mk_sct_tank sct_${name} ${name}
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close ${fd}
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${ns}::debug_log 1 "mk_sct_tank sct_${name} ${name}"
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${ns}::mk_sct_tank sct_${name} ${name}
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close ${fd}
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} catch_message ]
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handle_exception ${catch_status} ${catch_message}
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}
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puts stdout "file evaluation of sct_tank.tcl"
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