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Removed range read optimization as it doesn't work with libeio.

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This commit is contained in:
Chandra Sekar S 2010-10-30 15:36:59 +05:30 committed by Ryan Dahl
parent 2fa260cef6
commit 2b08bacd56
2 changed files with 8 additions and 10 deletions
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10
lib/fs.js
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@ -643,7 +643,7 @@ var ReadStream = fs.ReadStream = function(path, options) {
} else if (this.start > this.end) { } else if (this.start > this.end) {
this.emit('error', new Error('start must be <= end')); this.emit('error', new Error('start must be <= end'));
} else { } else {
this.firstRead = true; this._firstRead = true;
} }
} }
@ -684,8 +684,9 @@ ReadStream.prototype._read = function () {
allocNewPool(); allocNewPool();
} }
if (self.start !== undefined && self.firstRead) { if (self.start !== undefined && self._firstRead) {
self.pos = self.start; self.pos = self.start;
self._firstRead = false;
} }
// Grab another reference to the pool in the case that while we're in the // Grab another reference to the pool in the case that while we're in the
@ -731,10 +732,7 @@ ReadStream.prototype._read = function () {
self._read(); self._read();
} }
// pass null for position after we've seeked to the start of a range read fs.read(self.fd, pool, pool.used, toRead, self.pos, afterRead);
// always pass null on a non-range read
fs.read(self.fd, pool, pool.used, toRead, (self.firstRead ? self.pos : null), afterRead);
self.firstRead = false;
if (self.pos !== undefined) { if (self.pos !== undefined) {
self.pos += toRead; self.pos += toRead;

6
test/simple/test-fs-read-stream.js
View File

@ -87,13 +87,13 @@ process.addListener('exit', function() {
assert.equal(10000, file3.length); assert.equal(10000, file3.length);
}); });
var file4 = fs.createReadStream(rangeFile, {start: 1, end: 2}); var file4 = fs.createReadStream(rangeFile, {bufferSize: 1, start: 1, end: 2});
var contentRead = ''; var contentRead = '';
file4.addListener('data', function(data) { file4.addListener('data', function(data) {
contentRead += data.toString('utf-8'); contentRead += data.toString('utf-8');
}); });
file4.addListener('end', function(data) { file4.addListener('end', function(data) {
assert.equal(contentRead, 'yz'); assert.equal(contentRead, 'yz');
}); });
try { try {