redis/node-redis
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Allocate new Arrays with known size instead of dynamically growing them.

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This commit is contained in:
Matt Ranney
2010-12-13 15:55:30 -08:00
parent 202df58b93
commit aa3cefe506
2 changed files with 19 additions and 7 deletions
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24
lib/parser/javascript.js
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@@ -43,6 +43,7 @@ RedisReplyParser.prototype.reset = function () {
this.multi_bulk_length = 0;
this.multi_bulk_replies = null;
this.multi_bulk_pos = 0;
this.multi_bulk_nested_length = 0;
this.multi_bulk_nested_replies = null;
};
@@ -136,16 +137,20 @@ RedisReplyParser.prototype.execute = function (incoming_buf) {
if (this.multi_bulk_length) { // nested multi-bulk
this.multi_bulk_nested_length = this.multi_bulk_length;
this.multi_bulk_nested_replies = this.multi_bulk_replies;
this.multi_bulk_nested_pos = this.multi_bulk_pos;
}
this.multi_bulk_length = +this.tmp_string;
this.multi_bulk_replies = [];
this.multi_bulk_pos = 0;
this.state = "type";
if (this.multi_bulk_length < 0) {
this.send_reply(null);
this.multi_bulk_length = 0;
} else if (this.multi_bulk_length === 0) {
this.multi_bulk_pos = 0;
this.multi_bulk_replies = null;
this.send_reply([]);
} else {
this.multi_bulk_replies = new Array(this.multi_bulk_length);
}
} else {
this.parser_error(new Error("didn't see LF after NL reading multi bulk count"));
@@ -265,8 +270,9 @@ RedisReplyParser.prototype.send_reply = function (reply) {
RedisReplyParser.prototype.add_multi_bulk_reply = function (reply) {
if (this.multi_bulk_replies) {
this.multi_bulk_replies.push(reply);
if (this.multi_bulk_replies.length < this.multi_bulk_length) {
this.multi_bulk_replies[this.multi_bulk_pos] = reply;
this.multi_bulk_pos += 1;
if (this.multi_bulk_pos < this.multi_bulk_length) {
return;
}
} else {
@@ -274,17 +280,23 @@ RedisReplyParser.prototype.add_multi_bulk_reply = function (reply) {
}
if (this.multi_bulk_nested_length > 0) {
this.multi_bulk_nested_replies.push(this.multi_bulk_replies);
this.multi_bulk_nested_replies[this.multi_bulk_nested_pos] = this.multi_bulk_replies;
this.multi_bulk_nested_pos += 1;
this.multi_bulk_length = 0;
delete this.multi_bulk_replies;
if (this.multi_bulk_nested_length === this.multi_bulk_nested_replies.length) {
this.multi_bulk_replies = null;
this.multi_bulk_pos = 0;
if (this.multi_bulk_nested_length === this.multi_bulk_nested_pos) {
this.emit("reply", this.multi_bulk_nested_replies);
this.multi_bulk_nested_length = 0;
this.multi_bulk_nested_pos = 0;
this.multi_bulk_nested_replies = null;
}
} else {
this.emit("reply", this.multi_bulk_replies);
this.multi_bulk_length = 0;
this.multi_bulk_replies = null;
this.multi_bulk_pos = 0;
}
};