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coverage.js
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coverage.js
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var spawn=require('child_process').spawn
var path=require('path')
var fs=require('fs')
/*
Create fingerprint from ASanCoverage file.
*/
var outputDirectory=(process.argv.indexOf('-temp')+1 && path.resolve(process.argv[process.argv.indexOf('-temp')+1])+'/') || undefined
var coverageDir=""
if(outputDirectory){
process.env.ASAN_OPTIONS=process.env.ASAN_OPTIONS+",coverage=1,coverage_bitset=1,coverage_dir="+outputDirectory
coverageDir=outputDirectory
}
else{
process.env.ASAN_OPTIONS=process.env.ASAN_OPTIONS+",coverage=1,coverage_bitset=1,coverage_dir=/tmp/cov/"
coverageDir="/tmp/cov/"
}
var crypto=require('crypto')
function cleanDir(dir){
var files=fs.readdirSync(dir)
files.forEach(function(file){
fs.unlinkSync(dir+'/'+file)
})
}
cleanDir(coverageDir)
function coverageFingerPrint(){
var covFiles=fs.readdirSync(coverageDir)
for(var x=0; x<covFiles.length; x++){
var module=covFiles[x].split('.')[0]
if(module=="combined"){
var hash=crypto.createHash('sha1').update(fs.readFileSync(coverageDir+'/'+covFiles[x])).digest('hex')
cleanDir(coverageDir)
// console.log(covFiles[x]+": "+hash)
return hash
}
}
cleanDir(coverageDir)
return null
}
/*
Spawn target binary
*/
function spawnTarget(target,args,timeout){
var target=spawn(target,args)
var stderr=""
var stdout=""
function exitHandler(code){
/*emit crash: null or fingerprint*/
clearTimeout(target.timeout)
target.emit('crash',coverageFingerPrint())
}
target.on('exit',exitHandler)
target.timeout=setTimeout(function(){
console.log('Timeout')
target.removeListener('exit',exitHandler)
target.on('exit',function(){
target.emit('crash',null)
})
target.kill('SIGKILL')
},timeout)
return target
}
module.exports={
spawnTarget:spawnTarget
}