diff options
Diffstat (limited to 'library/http')
| -rw-r--r-- | library/http/http.tcl | 63 |
1 files changed, 40 insertions, 23 deletions
diff --git a/library/http/http.tcl b/library/http/http.tcl index a524415..c8c9908 100644 --- a/library/http/http.tcl +++ b/library/http/http.tcl @@ -9,7 +9,7 @@ # See the file "license.terms" for information on usage and # redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES. # -# RCS: @(#) $Id: http.tcl,v 1.32 2000/04/22 07:07:59 sandeep Exp $ +# RCS: @(#) $Id: http.tcl,v 1.33 2000/06/02 23:14:46 hobbs Exp $ # Rough version history: # 1.0 Old http_get interface @@ -280,7 +280,7 @@ proc http::geturl { url args } { if {![regexp -nocase {^(([^:]*)://)?([^/:]+)(:([0-9]+))?(/.*)?$} $url \ x prefix proto host y port srvurl]} { unset $token - error "Unsupported URL: $url" + return -code error "Unsupported URL: $url" } if {[string length $proto] == 0} { set proto http @@ -288,7 +288,7 @@ proc http::geturl { url args } { } if {![info exists urlTypes($proto)]} { unset $token - return -code error "unsupported url type \"$proto\"" + return -code error "Unsupported URL type \"$proto\"" } set defport [lindex $urlTypes($proto) 0] set defcmd [lindex $urlTypes($proto) 1] @@ -345,12 +345,17 @@ proc http::geturl { url args } { if {$state(-timeout) > 0} { fileevent $s writable [list http::Connect $token] http::wait $token - if {$state(status) != "connect"} { - - # Likely to be connection timeout. If there was a connection - # error, (e.g., bad port), then http::wait will have - # raised an error already + if {[string equal $state(status) "error"]} { + # something went wrong while trying to establish the connection + # Clean up after events and such, but DON'T call the command + # callback (if available) because we're going to throw an + # exception from here instead. + set err [lindex $state(error) 0] + cleanup $token + return -code error $err + } elseif {![string equal $state(status) "connect"]} { + # Likely to be connection timeout return $token } set state(status) "" @@ -449,6 +454,11 @@ proc http::geturl { url args } { # calls it synchronously, we just do a wait here. wait $token + if {[string equal $state(status) "error"]} { + # Something went wrong, so throw the exception, and the + # enclosing catch will do cleanup. + return -code error [lindex $state(error) 0] + } } } err]} { # The socket probably was never connected, @@ -457,8 +467,12 @@ proc http::geturl { url args } { # Clean up after events and such, but DON'T call the command callback # (if available) because we're going to throw an exception from here # instead. - - Finish $token $err 1 + + # if state(status) is error, it means someone's already called Finish + # to do the above-described clean up. + if {[string equal $state(status) "error"]} { + Finish $token $err 1 + } cleanup $token return -code error $err } @@ -502,6 +516,15 @@ proc http::size {token} { return $state(currentsize) } +proc http::error {token} { + variable $token + upvar 0 $token state + if {[info exists state(error)]} { + return $state(error) + } + return "" +} + # http::cleanup # # Garbage collect the state associated with a transaction @@ -531,21 +554,19 @@ proc http::cleanup {token} { # Sets the status of the connection, which unblocks # the waiting geturl call - proc http::Connect {token} { +proc http::Connect {token} { variable $token upvar 0 $token state global errorInfo errorCode if {[eof $state(sock)] || - [string length [fconfigure $state(sock) -error]]} { - set state(status) error - set state(error) [list \ - "connect failed [fconfigure $state(sock) -error]" \ - $errorInfo $errorCode] + [string length [fconfigure $state(sock) -error]]} { + Finish $token "connect failed [fconfigure $state(sock) -error]" 1 } else { set state(status) connect + fileevent $state(sock) writable {} } - fileevent $state(sock) writable {} - } + return +} # http::Write # @@ -780,11 +801,7 @@ proc http::wait {token} { # We must wait on the original variable name, not the upvar alias vwait $token\(status) } - if {[info exists state(error)]} { - set errorlist $state(error) - unset state - eval error $errorlist - } + return $state(status) } |