redis/node-redis
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have the parser try to recover from errors when it has them and communicate this back to the user

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Orion Henry
2010-09-29 17:10:01 -07:00
parent 98e27c43dd
commit 5321a1746f
1 changed files with 10 additions and 6 deletions
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16
index.js
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@@ -9,10 +9,7 @@ var net = require("net"),
exports.debug_mode = false; exports.debug_mode = false;
function RedisReplyParser() { function RedisReplyParser() {
this.state = "type"; this.reset();
this.return_buffer = new Buffer(16384); // for holding replies, might grow
this.tmp_buffer = new Buffer(128); // for holding size fields
events.EventEmitter.call(this); events.EventEmitter.call(this);
} }
sys.inherits(RedisReplyParser, events.EventEmitter); sys.inherits(RedisReplyParser, events.EventEmitter);
@@ -38,6 +35,12 @@ function to_array(args) {
return arr; return arr;
} }
RedisReplyParser.prototype.reset = function() {
this.state = "type";
this.return_buffer = new Buffer(16384); // for holding replies, might grow
this.tmp_buffer = new Buffer(128); // for holding size fields
}
RedisReplyParser.prototype.execute = function (incoming_buf) { RedisReplyParser.prototype.execute = function (incoming_buf) {
var pos = 0, bd_tmp, bd_str, i; var pos = 0, bd_tmp, bd_str, i;
//, state_times = {}, start_execute = new Date(), start_switch, end_switch, old_state; //, state_times = {}, start_execute = new Date(), start_switch, end_switch, old_state;
@@ -348,7 +351,7 @@ function RedisClient(stream) {
self.return_reply(reply); self.return_reply(reply);
}); });
self.reply_parser.on("error", function (err) { self.reply_parser.on("error", function (err) {
console.log("Redis reply parser error: " + err.stack); self.emit("error", new Error("Redis reply parser error: " + err.stack));
}); });
self.retry_timer = null; self.retry_timer = null;
@@ -454,7 +457,8 @@ RedisClient.prototype.on_data = function (data) {
try { try {
this.reply_parser.execute(data); this.reply_parser.execute(data);
} catch (err) { } catch (err) {
console.log("Exception in RedisReplyParser: " + err.stack); this.reply_parser.reset(); // the parser has state - must reset it or it can never recover
this.emit("error", err); // pass the error along
} }
}; };