Check-in [a9fb6a2bd7]
Overview
Comment:Removed partial symlink implementation from KitDLL

Reorganized KitDLL code

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SHA1:a9fb6a2bd7f21f317a00afa5c69aa4b9c4e17a90
User & Date: rkeene on 2010-09-26 04:50:52
Other Links: manifest | tags
Context
2010-09-26
04:50
Initial dir2c.tcl check-in: 1471135306 user: rkeene tags: trunk
04:50
Removed partial symlink implementation from KitDLL

Reorganized KitDLL code check-in: a9fb6a2bd7 user: rkeene tags: trunk

04:50
Fixed issue with glob of top dir check-in: cc20ec9009 user: rkeene tags: trunk
Changes

Modified kitdll/buildsrc/kitdll-0.0/cvfs.tcl from [abcb041a6c] to [aa949e8f6f].

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}

# Implementation

## Filesystem Data
namespace eval ::vfs::kitdll::data {}
set ::vfs::kitdll::data(joe) "Test\n"
set ::vfs::kitdll::data(bob) "joe"
set {::vfs::kitdll::metadata()} [list type directory ino 0 mode 0555 nlink 2 uid 0 gid 0 size 0 atime 0 mtime 0 ctime 0]
set ::vfs::kitdll::metadata(joe) [list type file ino 1 mode 0444 nlink 1 uid 0 gid 0 size 5 atime 0 mtime 0 ctime 0]
set ::vfs::kitdll::metadata(bob) [list type link ino 4 mode 0444 nlink 1 uid 0 gid 0 size 5 atime 0 mtime 0 ctime 0]
set ::vfs::kitdll::metadata(sub) [list type directory ino 2 mode 0555 nlink 1 uid 0 gid 0 size 0 atime 0 mtime 0 ctime 0]
set ::vfs::kitdll::metadata(sub/sub2) [list type directory ino 3 mode 0555 nlink 1 uid 0 gid 0 size 0 atime 0 mtime 0 ctime 0]

proc ::vfs::kitdll::data::getData {hashkey file {start 0} {end "end"}} {
	if {![info exists ::vfs::kitdll::data($file)]} {
		return -code error "Invalid operation"
	}
................................................................................

		lappend newchildren $tail
	}

	return $newchildren
}

## VFS
### Helpers
namespace eval ::vfs::kitdll::vfsdata {}
set ::vfs::kitdll::vfsdata::fileidx -1

### Implemented
#### Single Handler
proc ::vfs::kitdll::vfshandler {hashkey subcmd args} {
	set cmd $args
	set cmd [linsert $cmd 0 "::vfs::kitdll::vfsop_${subcmd}" $hashkey]

	return [eval $cmd]
}

................................................................................
proc ::vfs::kitdll::chanhandler {hashkey subcmd args} {
	set cmd $args
	set cmd [linsert $cmd 0 "::vfs::kitdll::chanop_${subcmd}" $hashkey]

	return [eval $cmd]
}

#### Actual handlers
##### Finished
























































proc ::vfs::kitdll::vfsop_stat {hashkey root relative actualpath} {
	catch {
		set ret [::vfs::kitdll::data::getMetadata $hashkey $relative]
	}

	if {![info exists ret]} {
		vfs::filesystem posixerror $::vfs::posix(ENOENT)
................................................................................
	}

	return 1
}

proc ::vfs::kitdll::vfsop_matchindirectory {hashkey root relative actualpath pattern types} {
	set ret [list]

	if {$pattern == ""} {
		catch {
			set test [::vfs::kitdll::data::getMetadata $hashkey $relative]
		}

		if {![info exists test]} {
			set children [list]
		}



		set children [list $relative]
	} else {
		set children [::vfs::kitdll::data::getChildren $hashkey $relative]
	}

	foreach child $children {
................................................................................
			return [format {0%o} $metadata(mode)]
		}
	}

	return -code error "Invalid index"
}

proc ::vfs::kitdll::chanop_initialize {hashkey chanId mode} {
	return [list initialize finalize watch read seek]
}

proc ::vfs::kitdll::chanop_finalize {hashkey chanId} {
	unset -nocomplain ::vfs::kitdll::chandata([list $hashkey $chanId])

	return
}

proc ::vfs::kitdll::chanop_watch {hashkey chanId eventSpec} {
	array set chaninfo $::vfs::kitdll::chandata([list $hashkey $chanId])

	set chaninfo(watching) $eventSpec

	set ::vfs::kitdll::chandata([list $hashkey $chanId]) [array get chaninfo]

	if {[lsearch -exact $chaninfo(watching) "read"] != -1} {
		after 0 [list catch "chan postevent $chanId [list {read}]"]
	}

	return
}

proc ::vfs::kitdll::chanop_read {hashkey chanId bytes} {
	array set chaninfo $::vfs::kitdll::chandata([list $hashkey $chanId])

	set pos $chaninfo(pos)
	set len $chaninfo(len)

	if {[lsearch -exact $chaninfo(watching) "read"] != -1} {
		after 0 [list catch "chan postevent $chanId [list {read}]"]
	}

	if {$pos == $len} {
		return ""
	}

	set end [expr {$pos + $bytes}]
	if {$end > $len} {
		set end $len
	}

	set data [::vfs::kitdll::data::getData $hashkey $chaninfo(file) $pos $end]

	set dataLen [string length $data]
	incr pos $dataLen

	set chaninfo(pos) $pos

	set ::vfs::kitdll::chandata([list $hashkey $chanId]) [array get chaninfo]

	return $data
}

proc ::vfs::kitdll::vfsop_open {hashkey root relative actualpath mode permissions} {
	if {$mode != "" && $mode != "r"} {
		vfs::filesystem posixerror $::vfs::posix(EROFS)
	}

	catch {
		array set metadata [::vfs::kitdll::data::getMetadata $hashkey $relative]
................................................................................

		return [list $chan]
	}

	return -code error "No way to generate a channel, need either Tcl 8.5+, \"rechan\""
}

### No-Ops since we are a readonly filesystem
proc ::vfs::kitdll::vfsop_createdirectory {args} {
	vfs::filesystem posixerror $::vfs::posix(EROFS)
}
proc ::vfs::kitdll::vfsop_deletefile {args} {
	vfs::filesystem posixerror $::vfs::posix(EROFS)
}
proc ::vfs::kitdll::vfsop_removedirectory {args} {







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}

# Implementation

## Filesystem Data
namespace eval ::vfs::kitdll::data {}
set ::vfs::kitdll::data(joe) "Test\n"

set {::vfs::kitdll::metadata()} [list type directory ino 0 mode 0555 nlink 2 uid 0 gid 0 size 0 atime 0 mtime 0 ctime 0]
set ::vfs::kitdll::metadata(joe) [list type file ino 1 mode 0444 nlink 1 uid 0 gid 0 size 5 atime 0 mtime 0 ctime 0]

set ::vfs::kitdll::metadata(sub) [list type directory ino 2 mode 0555 nlink 1 uid 0 gid 0 size 0 atime 0 mtime 0 ctime 0]
set ::vfs::kitdll::metadata(sub/sub2) [list type directory ino 3 mode 0555 nlink 1 uid 0 gid 0 size 0 atime 0 mtime 0 ctime 0]

proc ::vfs::kitdll::data::getData {hashkey file {start 0} {end "end"}} {
	if {![info exists ::vfs::kitdll::data($file)]} {
		return -code error "Invalid operation"
	}
................................................................................

		lappend newchildren $tail
	}

	return $newchildren
}

## VFS and Chan I/O
### Dispatchers





proc ::vfs::kitdll::vfshandler {hashkey subcmd args} {
	set cmd $args
	set cmd [linsert $cmd 0 "::vfs::kitdll::vfsop_${subcmd}" $hashkey]

	return [eval $cmd]
}

................................................................................
proc ::vfs::kitdll::chanhandler {hashkey subcmd args} {
	set cmd $args
	set cmd [linsert $cmd 0 "::vfs::kitdll::chanop_${subcmd}" $hashkey]

	return [eval $cmd]
}

### Actual handlers
#### Channel operation handlers
proc ::vfs::kitdll::chanop_initialize {hashkey chanId mode} {
	return [list initialize finalize watch read seek]
}

proc ::vfs::kitdll::chanop_finalize {hashkey chanId} {
	unset -nocomplain ::vfs::kitdll::chandata([list $hashkey $chanId])

	return
}

proc ::vfs::kitdll::chanop_watch {hashkey chanId eventSpec} {
	array set chaninfo $::vfs::kitdll::chandata([list $hashkey $chanId])

	set chaninfo(watching) $eventSpec

	set ::vfs::kitdll::chandata([list $hashkey $chanId]) [array get chaninfo]

	if {[lsearch -exact $chaninfo(watching) "read"] != -1} {
		after 0 [list catch "chan postevent $chanId [list {read}]"]
	}

	return
}

proc ::vfs::kitdll::chanop_read {hashkey chanId bytes} {
	array set chaninfo $::vfs::kitdll::chandata([list $hashkey $chanId])

	set pos $chaninfo(pos)
	set len $chaninfo(len)

	if {[lsearch -exact $chaninfo(watching) "read"] != -1} {
		after 0 [list catch "chan postevent $chanId [list {read}]"]
	}

	if {$pos == $len} {
		return ""
	}

	set end [expr {$pos + $bytes}]
	if {$end > $len} {
		set end $len
	}

	set data [::vfs::kitdll::data::getData $hashkey $chaninfo(file) $pos $end]

	set dataLen [string length $data]
	incr pos $dataLen

	set chaninfo(pos) $pos

	set ::vfs::kitdll::chandata([list $hashkey $chanId]) [array get chaninfo]

	return $data
}

#### VFS operation handlers
proc ::vfs::kitdll::vfsop_stat {hashkey root relative actualpath} {
	catch {
		set ret [::vfs::kitdll::data::getMetadata $hashkey $relative]
	}

	if {![info exists ret]} {
		vfs::filesystem posixerror $::vfs::posix(ENOENT)
................................................................................
	}

	return 1
}

proc ::vfs::kitdll::vfsop_matchindirectory {hashkey root relative actualpath pattern types} {
	set ret [list]


	catch {
		array set metadata [::vfs::kitdll::data::getMetadata $hashkey $relative]
	}

	if {![info exists metadata]} {
		return [list]
	}

	if {$pattern == ""} {

		set children [list $relative]
	} else {
		set children [::vfs::kitdll::data::getChildren $hashkey $relative]
	}

	foreach child $children {
................................................................................
			return [format {0%o} $metadata(mode)]
		}
	}

	return -code error "Invalid index"
}
























































proc ::vfs::kitdll::vfsop_open {hashkey root relative actualpath mode permissions} {
	if {$mode != "" && $mode != "r"} {
		vfs::filesystem posixerror $::vfs::posix(EROFS)
	}

	catch {
		array set metadata [::vfs::kitdll::data::getMetadata $hashkey $relative]
................................................................................

		return [list $chan]
	}

	return -code error "No way to generate a channel, need either Tcl 8.5+, \"rechan\""
}

##### No-Ops since we are a readonly filesystem
proc ::vfs::kitdll::vfsop_createdirectory {args} {
	vfs::filesystem posixerror $::vfs::posix(EROFS)
}
proc ::vfs::kitdll::vfsop_deletefile {args} {
	vfs::filesystem posixerror $::vfs::posix(EROFS)
}
proc ::vfs::kitdll::vfsop_removedirectory {args} {