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@ -56,9 +56,9 @@ var closeChannel = function (env, channelName, cb) { |
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} |
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}; |
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var clearChannel = function (Env, channelId, cb) { |
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var path = mkPath(Env, channelId); |
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getMetadataAtPath(Env, path, function (e, metadata) { |
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var clearChannel = function (env, channelId, cb) { |
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var path = mkPath(env, channelId); |
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getMetadataAtPath(env, path, function (e, metadata) { |
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if (e) { return cb(e); } |
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if (!metadata) { |
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return void Fs.truncate(path, 0, function (err) { |
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@ -70,9 +70,17 @@ var clearChannel = function (Env, channelId, cb) { |
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} |
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var len = JSON.stringify(metadata).length + 1; |
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Fs.truncate(path, len, function (err) { |
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if (err) { return cb(err); } |
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closeChannel(Env, channelId, cb); |
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// as long as closeChannel is synchronous, this should not cause
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// any race conditions. truncate ought to return faster than a channel
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// can be opened and read by another user. if that turns out not to be
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// the case, we'll need to implement locking.
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closeChannel(env, channelId, function (err) { |
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if (err) { cb(err); } |
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Fs.truncate(path, len, function (err) { |
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if (err) { return cb(err); } |
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cb(); |
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}); |
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}); |
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}); |
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}; |
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@ -120,7 +128,7 @@ var checkPath = function (path, callback) { |
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}; |
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var removeChannel = function (env, channelName, cb) { |
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var filename = Path.join(env.root, channelName.slice(0, 2), channelName + '.ndjson'); |
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var filename = mkPath(env, channelName); |
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Fs.unlink(filename, cb); |
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}; |
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