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child_process: add errno property to exceptions

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In case of a write failure when using fork() an error would be thrown. The
thrown exception was missing the `errno` property.
This commit is contained in:
Andreas Madsen 2012-01-17 08:04:50 +01:00 committed by Bert Belder
parent 1695332941
commit ca6ededbd1
1 changed files with 7 additions and 3 deletions
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10
lib/child_process.js
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@ -132,7 +132,7 @@ function setupChannel(target, channel) {
var writeReq = channel.write(buffer, 0, buffer.length, sendHandle);
if (!writeReq) {
throw new Error(errno + 'cannot write to IPC channel.');
throw errnoException(errno, 'write', 'cannot write to IPC channel.');
}
writeReq.oncomplete = nop;
@ -471,11 +471,15 @@ ChildProcess.prototype.spawn = function(options) {
};
function errnoException(errorno, syscall) {
function errnoException(errorno, syscall, errmsg) {
// TODO make this more compatible with ErrnoException from src/node.cc
// Once all of Node is using this function the ErrnoException from
// src/node.cc should be removed.
var e = new Error(syscall + ' ' + errorno);
var message = syscall + ' ' + errorno;
if (errmsg) {
message += ' - ' + errmsg;
}
var e = new Error(message);
e.errno = e.code = errorno;
e.syscall = syscall;
return e;