diff options
Diffstat (limited to 'library/http2.3/http.tcl')
| -rw-r--r-- | library/http2.3/http.tcl | 94 |
1 files changed, 90 insertions, 4 deletions
diff --git a/library/http2.3/http.tcl b/library/http2.3/http.tcl index dd5bcf0..1460c85 100644 --- a/library/http2.3/http.tcl +++ b/library/http2.3/http.tcl @@ -9,9 +9,9 @@ # 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 1.21 2000/02/01 11:48:31 hobbs Exp $ +# RCS: @(#) $Id: http.tcl,v 1.22 2000/03/17 02:15:06 welch Exp $ -package provide http 2.2 ;# This uses Tcl namespaces +package provide http 2.3 ;# This uses Tcl namespaces namespace eval http { variable http @@ -172,7 +172,9 @@ proc http::reset { token {why reset} } { variable $token upvar 0 $token state set state(status) $why + set state(querydone) $why catch {fileevent $state(sock) readable {}} + catch {fileevent $state(sock) writable {}} Finish $token if {[info exists state(error)]} { set errorlist $state(error) @@ -217,6 +219,7 @@ proc http::geturl { url args } { -headers {} -timeout 0 -type application/x-www-form-urlencoded + -queryprogress {} state header meta {} currentsize 0 @@ -226,7 +229,7 @@ proc http::geturl { url args } { status "" } set options {-blocksize -channel -command -handler -headers \ - -progress -query -validate -timeout -type} + -progress -query -queryprogress -validate -timeout -type} set usage [join $options ", "] regsub -all -- - $options {} options set pat ^-([join $options |])$ @@ -341,7 +344,17 @@ proc http::geturl { url args } { puts $s "Content-Type: $state(-type)" puts $s "" fconfigure $s -translation {auto binary} - puts -nonewline $s $state(-query) + + # If a timeout is specified or a queryprogress callback is specified + # we do the post in the background + + if {$state(-timeout) > 0 || [string length $state(-queryprogress)]} { + fileevent $s writable \ + [list http::Write $token $state(-query) $state(-queryprogress)] + WaitPost $token + } else { + puts -nonewline $s $state(-query) + } } else { puts $s "" } @@ -427,6 +440,54 @@ proc http::cleanup {token} { } } +# http::Write +# +# Write POST query data to the socket +# +# Arguments +# token The token for the connection +# query The query data to write to the connection +# queryprogress The callback, if any, to make after each block +# +# Side Effects +# Write the socket and handle callbacks. + +proc http::Write {token query queryprogress} { + variable $token + upvar 0 $token state + set s $state(sock) + if {![info exist state(queryoffset)]} { + set state(queryoffset) 0 + set state(querylength) [string length $query] + } + set chunksize 16384 + + # Output a block. Tcl will buffer this if the socket blocks + + if {$state(querylength) < $chunksize} { + set chunksize $state(querylength) + } + if {[catch { + + # Catch I/O errors on dead sockets + + puts -nonewline $s [string range $query $state(queryoffset) \ + [incr state(queryoffset) $chunksize]] + + if {[string length $queryprogress]} { + eval $queryprogress [list $token $state(queryoffset) $state(querylength)] + } + + if {$state(queryoffset) >= $state(querylength)} { + fileevent $s writable {} + set state(querydone) ok + } + } err]} { + set state(querydone) $err + fileevent $s writable {} + } +} + # http::Event # # Handle input on the socket @@ -581,6 +642,7 @@ proc http::cleanup {token} { # # Arguments: # token Connection token. +# # Results: # The status after the wait. @@ -600,6 +662,30 @@ proc http::wait {token} { return $state(status) } +# http::WaitPost -- +# +# Wait for the post data to be written out +# +# Arguments: +# token Connection token. +# +# Results: +# The status after the wait. + +proc http::WaitPost {token} { + variable $token + upvar 0 $token state + + # We must wait on the original variable name, not the upvar alias + vwait $token\(querydone) + if {[string compare $state(querydone) ok] != 0} { + # throw an error to unwind geturl + return -code error $state(querydone) + } else { + return $state(querydone) + } +} + # http::formatQuery -- # # See documentaion for details. |