add Pelican
r3108 | jgn | 2011-04-20 12:29:55 +1000 (Wed, 20 Apr 2011) | 1 line
This commit is contained in:
Jing Chen
committed by
Douglas Clowes
Douglas Clowes
parent
1fa3d21486
commit
22b22ffa25
@@ -0,0 +1,169 @@
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#------------------------------------------------------
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# This is SICS HM driver code for the CCDWWW CCD camera
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# WWW server as used at SINQ. It uses, of course, the
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# scriptcontext asynchronous I/O system
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#
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# Mark Koennecke, September 2010
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#-------------------------------------------------------
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namespace eval ccdwww {}
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#-------------------------------------------------------
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# This is a default init script. The user has to initialise
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# a list of nodes to send to the CCD in XML format as
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# variable ccdwww::initnodes
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#--------------------------------------------------------
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proc ccdwww::initscript {name} {
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global ccdwww::initnodes
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append confdata "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
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foreach var $ccdwww::initnodes {
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set val [hval /sics/${name}/${var}]
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append confdata "<$var>$val</$var>\n"
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}
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return $confdata
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}
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#-------------------------------------------------------
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proc ccdwww::httpsend {url} {
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sct send $url
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return httpreply
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}
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#-------------------------------------------------------
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proc ccdwww::httpsendstart {url} {
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sct send $url
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return httpstartreply
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}
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#--------------------------------------------------------
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proc ccdwww::httptest {data} {
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if {[string first ASCERR $data] >= 0} {
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error $data
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}
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if {[string first ERROR $data] >= 0} {
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error $data
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}
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return $data
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}
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#--------------------------------------------------------
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proc ccdwww::httpreply {} {
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set reply [sct result]
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set status [catch {httptest $reply} data]
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if {$status != 0} {
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sct geterror $data
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clientput $data
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} else {
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hdelprop [sct] geterror
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}
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return idle
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}
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#---------------------------------------------------------
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proc ccdwww::httpstartreply {} {
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set reply [sct result]
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set status [catch {httptest $reply} data]
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if {$status != 0} {
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sct geterror $data
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} else {
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hdelprop [sct] geterror
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}
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clientput $data
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after 100
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return idle
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}
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#---------------------------------------------------------
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# A CCD works like a camera. When exposing, it cannot be stopped,
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# paused or anything. This is why the appropriate methods
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# here have no implementation
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#----------------------------------------------------------
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proc ccdwww::httpcontrol {} {
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set target [sct target]
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switch $target {
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1000 {
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set path [file dirname [sct]]
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set preset [hval $path/preset]
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set ret [ccdwww::httpsendstart "/ccd/expose?time=$preset"]
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hupdate $path/status run
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[sct controller] queue $path/status progress read
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return $ret
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}
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1001 {}
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1002 {}
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1003 {}
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1005 {
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set path [file dirname [sct]]
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set script [hval $path/initscript]
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set confdata [eval $script]
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clientput $confdata
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return [ccdwww::httpsend "post:/ccd/configure:$confdata"]
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}
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default {
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sct print "ERROR: bad start target $target given to control"
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return idle
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}
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}
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}
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#---------------------------------------------------------
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proc ccdwww::httpdata {name} {
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set path "/sics/${name}/data"
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set com [format "node:%s:/ccd/data" $path]
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sct send $com
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return httpdatareply
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}
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#--------------------------------------------------------
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proc ccdwww::httpdatareply {} {
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set status [catch {httpreply} txt]
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if {$status == 0} {
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set path [file dirname [sct]]
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hdelprop $path/data geterror
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}
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return idle
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}
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#--------------------------------------------------------
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proc ccdwww::httpstatus {} {
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sct send /ccd/locked
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return httpevalstatus
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}
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#-------------------------------------------------------
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proc ccdwww::httpstatusdata {} {
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catch {httpdatareply}
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sct update idle
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return idle
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}
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#---------------------------------------------------------
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proc ccdwww::httpevalstatus {name} {
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set reply [sct result]
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set status [catch {httptest $reply} data]
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if {$status != 0} {
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sct geterror $data
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clientput $data
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sct update error
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return idle
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}
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hdelprop [sct] geterror
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if {$data == 0} {
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httpdata $name
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return httpstatusdata
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} else {
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sct update run
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[sct controller] queue [sct] progress read
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return idle
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}
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}
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#---------------------------------------------------------
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proc ccdwww::MakeCCDWWW {name host initscript} {
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sicsdatafactory new ${name}transfer
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makesctcontroller ${name}sct sinqhttpopt $host ${name}transfer 600
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MakeSecHM $name 2
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hsetprop /sics/${name}/control write ccdwww::httpcontrol
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hsetprop /sics/${name}/control httpreply ccdwww::httpreply
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hsetprop /sics/${name}/control httpstartreply ccdwww::httpstartreply
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${name}sct write /sics/${name}/control
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hsetprop /sics/${name}/data read ccdwww::httpdata $name
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hsetprop /sics/${name}/data httpdatareply ccdwww::httpdatareply
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hsetprop /sics/${name}/status read ccdwww::httpstatus
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hsetprop /sics/${name}/status httpevalstatus ccdwww::httpevalstatus $name
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hsetprop /sics/${name}/status httpstatusdata ccdwww::httpstatusdata
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${name}sct poll /sics/${name}/status 60
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hfactory /sics/${name}/initscript plain mugger text
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hset /sics/${name}/initscript $initscript
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}
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