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started testing the use of spawn instead of exec...

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Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
This commit is contained in:
Alex A. Naanou 2014-01-24 19:38:29 +04:00
parent aff4bd455a
commit 69420f1710
1 changed files with 25 additions and 6 deletions
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19
ui/compatibility.js
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@ -118,6 +118,7 @@ if(window.CEF_dumpJSON != null){
}) })
} }
USE_EXEC = false
// XXX this uses vips... // XXX this uses vips...
window.getVipsField = function(field, source){ window.getVipsField = function(field, source){
if(source in IMAGES){ if(source in IMAGES){
@ -125,12 +126,30 @@ if(window.CEF_dumpJSON != null){
var source = normalizePath(img.path) var source = normalizePath(img.path)
} }
var getter = $.Deferred() var getter = $.Deferred()
// exec...
if(USE_EXEC){
var cmd = 'vips im_header_string "$FIELD" "$IN"' var cmd = 'vips im_header_string "$FIELD" "$IN"'
.replace(/\$IN/g, osPath(source)) .replace(/\$IN/g, osPath(source))
.replace(/\$FIELD/g, field) .replace(/\$FIELD/g, field)
proc.exec(cmd, function(error, stdout, stderr){ proc.exec(cmd, function(error, stdout, stderr){
getter.resolve(stdout.trim()) getter.resolve(stdout.trim())
}) })
// spawn...
// NOTE: this should have significantly less overhead than running a shell...
} else {
var p = proc.spawn('vips', ['im_header_string', field, osPath(source)])
p.stdout.on('data', function(data){
getter.resolve(data.toString().trim())
})
/*
p.on('close', function(code){
getter.resolve(code)
})
*/
}
return getter return getter
} }