Implement Length on Send Functions, Expose KeepAlive, Finalize, etc #334
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davidvonthenen
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Actionable comments posted: 7
🧹 Outside diff range and nitpick comments (13)
Deepgram/Clients/Listen/v1/WebSocket/Constants.cs (2)
14-14: Add documentation for the new constant.The purpose and usage of
UseArrayLengthForSendare not immediately clear. Please add XML documentation to explain its intended use, especially considering its sentinel value of -1.Consider adding documentation like this:
/// <summary> /// Constant used to indicate that the full array length should be used when sending data. /// </summary> public const int UseArrayLengthForSend = -1;
20-21: Approved. Consider adding more detailed documentation.The new constant
DefaultFlushPeriodInMsis well-named and its value seems appropriate. However, to improve maintainability and usability, consider adding more detailed XML documentation.Here's a suggested documentation format:
/// <summary> /// The default flush period in milliseconds. /// </summary> /// <remarks> /// This value determines how often the buffer is flushed during data transmission. /// A lower value may increase responsiveness but could also increase network overhead. /// </remarks> public const int DefaultFlushPeriodInMs = 500;Deepgram.Microphone/Microphone.cs (2)
30-30: LGTM: Constructor signature updated correctlyThe constructor signature has been correctly updated to match the new
_push_callbackfield type. This change maintains consistency within the class and allows users to provide callbacks that can receive both the byte array and its length.Consider updating the XML documentation for the
push_callbackparameter to reflect the new signature:/// <param name="push_callback">A callback that receives the audio data as a byte array and its length</param>
123-123: LGTM: Callback invocation updated correctlyThe
_push_callbackinvocation has been correctly updated to passbuf.Lengthas the second argument, which is consistent with the new callback signature. This ensures that the length information is accurately provided to the callback.Consider a minor optimization to avoid calculating the buffer length twice:
- byte[] buf = new byte[frameCount * sizeof(Int16)]; + int bufLength = (int)(frameCount * sizeof(Int16)); + byte[] buf = new byte[bufLength]; if (_isMuted) { - buf = new byte[buf.Length]; + buf = new byte[bufLength]; } else { - Marshal.Copy(input, buf, 0, buf.Length); + Marshal.Copy(input, buf, 0, bufLength); } - _push_callback(buf, buf.Length); + _push_callback(buf, bufLength);This change reduces redundant calculations and improves code readability.
Deepgram/Clients/Interfaces/v1/ISpeakWebSocketClient.cs (2)
112-112: LGTM! Consider enhancing the documentation.The addition of the
lengthparameter improves flexibility and aligns with the PR objectives. This change is backwards compatible and allows for more precise control over data transmission.Consider updating the method's XML documentation to include information about the new
lengthparameter:/// <summary> /// Sends a binary message over the WebSocket connection. /// </summary> /// <param name="data">The data to be sent over the WebSocket.</param> /// <param name="length">The number of bytes to send. If not specified, the entire array length is used.</param> public void Send(byte[] data, int length = Constants.UseArrayLengthForSend);
Naming Inconsistencies Persist in ISpeakWebSocketClient Implementations
The implementations of
Send,SendMessage, andSendMessageImmediatelymethods correctly include thelengthparameter, aligning with the interface changes. However, the naming and documentation inconsistencies identified earlier still exist:
- Methods like
SendMessagesuggest handling text but acceptbyte[]parameters.- The distinction between
SendandSendMessageremains unclear.Addressing these inconsistencies will improve code clarity and maintainability.
🔗 Analysis chain
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112-133: Overall changes look good, but consider addressing naming inconsistencies.The addition of the
lengthparameter to all send methods is consistent and aligns with the PR objectives. However, there are some naming and documentation inconsistencies that should be addressed:
- The methods
SendMessageandSendMessageImmediatelysuggest they handle text, but they acceptbyte[]parameters.- The distinction between
SendandSendMessageis not clear from their signatures.Consider renaming these methods or adjusting their parameter types to better reflect their purposes. For example:
SendBinaryinstead ofSendSendText(with astringparameter) if it's meant for textSendBinaryImmediatelyinstead ofSendMessageImmediatelyTo ensure these changes are correctly implemented, please run the following script to check the usage of these methods in the implementation classes:
This script will help verify that the implementing classes have been updated to match the new interface signatures.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Check the usage of ISpeakWebSocketClient methods in implementation classes # Search for classes implementing ISpeakWebSocketClient implementingClasses=$(rg --type csharp "class.*:.*ISpeakWebSocketClient" -l) # Check the implementation of each method for class in $implementingClasses; do echo "Checking implementation in $class" rg --type csharp "public void Send\(byte\[\] data, int length" "$class" rg --type csharp "public void SendMessage\(byte\[\] data, int length" "$class" rg --type csharp "public void SendMessageImmediately\(byte\[\] data, int length" "$class" doneLength of output: 968
Deepgram/Clients/Speak/v1/WebSocket/Client.cs (3)
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364-387: Consider adding parameter validation forlengthThe
SendMessagemethod has been updated to include thelengthparameter, which is then passed directly to theWebSocketMessageconstructor. However, there's no validation to ensure that thelengthvalue is valid (e.g., not negative or greater than the data array length).Consider adding a validation check for the
lengthparameter before using it. For example:public void SendMessage(byte[] data, int length = Constants.UseArrayLengthForSend) { if (length != Constants.UseArrayLengthForSend && (length < 0 || length > data.Length)) { throw new ArgumentOutOfRangeException(nameof(length), "Length must be non-negative and not greater than the data array length."); } // ... rest of the method ... EnqueueSendMessage(new WebSocketMessage(data, WebSocketMessageType.Text, length)); }This validation will help prevent potential issues with invalid length values.
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406-437: LGTM: Proper handling oflengthparameter, but consider adding validationThe
SendMessageImmediatelymethod has been updated to correctly handle the newlengthparameter. The implementation properly checks for the default value and uses thelengthparameter in theArraySegmentconstructor when sending the message.However, similar to the
SendMessagemethod, there's no validation of thelengthparameter. Consider adding a validation check at the beginning of the method:public void SendMessageImmediately(byte[] data, int length = Constants.UseArrayLengthForSend) { if (length != Constants.UseArrayLengthForSend && (length < 0 || length > data.Length)) { throw new ArgumentOutOfRangeException(nameof(length), "Length must be non-negative and not greater than the data array length."); } // ... rest of the method ... }This validation will help prevent potential issues with invalid length values.
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351-437: Overall: Good implementation oflengthparameter, with some suggestions for improvementThe addition of the
lengthparameter to theSend,SendMessage, andSendMessageImmediatelymethods improves the flexibility of the WebSocket client, allowing for more control over the amount of data sent. The use ofConstants.UseArrayLengthForSendas a default value maintains backward compatibility.Suggestions for improvement:
- Add parameter validation for the
lengthparameter in all methods where it's introduced.- Consider adding a comment or documentation explaining the purpose and usage of
Constants.UseArrayLengthForSend.- Evaluate the potential performance impact of these changes, especially for large messages, and consider adding a note in the documentation if there are any significant considerations.
To address these suggestions:
- Implement parameter validation as shown in previous comments.
- Add a comment explaining
Constants.UseArrayLengthForSend:// Constants.UseArrayLengthForSend is a special value indicating that the entire data array should be sent. // When this value is used, the actual length of the data array will be used for sending the message.
- Add a note in the class or method documentation:
/// <remarks> /// The addition of the `length` parameter allows for sending partial data from the provided array. /// For large messages, consider the potential performance implications and use appropriate length values. /// </remarks>These improvements will enhance the robustness and clarity of the WebSocket client implementation.
Deepgram/Clients/Listen/v1/WebSocket/Client.cs (3)
317-336: LGTM! Consider adding error handling.The new
SendClosemethod is well-implemented, providing flexibility in how the close message is sent to Deepgram. The use of locking ensures thread safety, and the logging is helpful for debugging.Consider adding error handling for the
SendAsynccall within theif (nullByte && _clientWebSocket != null)block. For example:if (nullByte && _clientWebSocket != null) { // send a close to Deepgram lock (_mutexSend) { - _clientWebSocket.SendAsync(new ArraySegment<byte>([0]), WebSocketMessageType.Binary, true, _cancellationTokenSource.Token) - .ConfigureAwait(false); + try + { + _clientWebSocket.SendAsync(new ArraySegment<byte>([0]), WebSocketMessageType.Binary, true, _cancellationTokenSource.Token) + .ConfigureAwait(false); + } + catch (Exception ex) + { + Log.Error("SendClose", $"Error sending close message: {ex.Message}"); + } } return; }This will ensure that any exceptions during the send operation are logged and don't disrupt the method's execution.
342-355: LGTM! Consider updating method documentation.The changes to
Send,SendBinary, andSendMessagemethods are well-implemented. The addition of thelengthparameter provides more flexibility in controlling the amount of data sent, and the use of a constant for the default value is a good practice.Consider updating the XML documentation for these methods to reflect the new
lengthparameter. For example:/// <summary> /// Sends a binary message over the WebSocket connection. /// </summary> /// <param name="data">The data to be sent over the WebSocket.</param> /// <param name="length">The number of bytes to send. If set to Constants.UseArrayLengthForSend, the entire array will be sent.</param> public void Send(byte[] data, int length = Constants.UseArrayLengthForSend) => SendBinary(data, length);Apply similar updates to the
SendBinaryandSendMessagemethod documentations as well.
360-389: LGTM! Consider adding bounds checking.The changes to
SendBinaryImmediatelyandSendMessageImmediatelymethods are well-implemented. The new logic correctly handles thelengthparameter, and the use ofArraySegmentensures that only the desired amount of data is sent.Consider adding bounds checking to ensure that the
lengthparameter is not greater than thedata.Length. This will prevent potentialArgumentOutOfRangeException. For example:public void SendBinaryImmediately(byte[] data, int length = Constants.UseArrayLengthForSend) { lock (_mutexSend) { Log.Verbose("SendBinaryImmediately", "Sending binary message immediately.."); // TODO: dump this message if (length == Constants.UseArrayLengthForSend) { length = data.Length; } + else if (length > data.Length) + { + Log.Warning("SendBinaryImmediately", $"Specified length {length} is greater than data length {data.Length}. Using data length instead."); + length = data.Length; + } _clientWebSocket.SendAsync(new ArraySegment<byte>(data, 0, length), WebSocketMessageType.Binary, true, _cancellationTokenSource.Token) .ConfigureAwait(false); } }Apply a similar change to the
SendMessageImmediatelymethod as well.Deepgram/Clients/Listen/v1/WebSocket/WebSocketMessage.cs (1)
14-28: Consider adding XML documentation comments for new membersTo improve code readability and maintainability, consider adding XML documentation comments to the new constructor overload and the
Lengthproperty. This will help other developers understand the purpose and usage of these members.
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Review profile: CHILL
📒 Files selected for processing (10)
- Deepgram.Microphone/Microphone.cs (3 hunks)
- Deepgram/Clients/Interfaces/v1/Constants.cs (1 hunks)
- Deepgram/Clients/Interfaces/v1/IListenWebSocketClient.cs (1 hunks)
- Deepgram/Clients/Interfaces/v1/ISpeakWebSocketClient.cs (3 hunks)
- Deepgram/Clients/Listen/v1/WebSocket/Client.cs (1 hunks)
- Deepgram/Clients/Listen/v1/WebSocket/Constants.cs (1 hunks)
- Deepgram/Clients/Listen/v1/WebSocket/WebSocketMessage.cs (1 hunks)
- Deepgram/Clients/Speak/v1/WebSocket/Client.cs (5 hunks)
- Deepgram/Clients/Speak/v1/WebSocket/Constants.cs (1 hunks)
- Deepgram/Clients/Speak/v1/WebSocket/WebSocketMessage.cs (1 hunks)
🔇 Additional comments not posted (13)
Deepgram/Clients/Interfaces/v1/Constants.cs (2)
1-3: LGTM: Copyright and licensing information is correct.The copyright notice, license specification, and SPDX identifier are all present and correctly formatted.
5-5: LGTM: Namespace declaration is correct.The namespace
Deepgram.Clients.Interfaces.v1follows the expected structure for the Deepgram .NET SDK.Deepgram/Clients/Listen/v1/WebSocket/Constants.cs (1)
Line range hint
1-24: Overall changes look good.The additions to the
Constantsclass are well-structured and align with the PR objectives. They enhance the configurability of the SDK without introducing any apparent issues. The consistent naming conventions and focused changes contribute to maintaining code quality.Deepgram.Microphone/Microphone.cs (2)
14-14: LGTM: Improved callback signatureThe change in the
_push_callbackfield type fromAction<byte[]>toAction<byte[], int>is a good improvement. It allows for passing both the byte array and its length to the callback, which can provide more flexibility and potentially better performance by avoiding unnecessary length calculations. This change aligns well with the PR objectives of implementing length parameters on send functions.
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1-180: Summary: Successful implementation of length parameter in callbackThe changes made to the
Microphoneclass successfully implement the length parameter in the callback function, as outlined in the PR objectives. The modifications to the_push_callbackfield, constructor signature, and_callbackmethod are consistent and well-implemented.These changes provide more flexibility and potentially better performance by allowing direct access to the buffer length without recalculation. The implementation aligns well with the goal of exposing more detailed information about the audio data being processed.
Overall, the changes are approved with minor suggestions for documentation updates and optimization.
Deepgram/Clients/Interfaces/v1/IListenWebSocketClient.cs (6)
74-77: LGTM: SendKeepAlive method addedThe
SendKeepAlivemethod is a good addition to the interface. It provides a clear way to send keep-alive messages, which can be crucial for maintaining long-lived WebSocket connections.
79-82: LGTM: SendFinalize method addedThe
SendFinalizemethod is a valuable addition to the interface. It provides a clear way to send finalization messages, which can be important for properly ending WebSocket sessions or data streams.
84-87: LGTM: SendClose method added, but clarification neededThe
SendClosemethod is a good addition to the interface, providing a clear way to initiate the closing of a WebSocket connection. However, the purpose of thenullByteparameter is not immediately clear.Could you please add a comment explaining the purpose and effect of the
nullByteparameter? This will help users of the interface understand when they might want to set it to true.
109-109: LGTM: Length parameter added to immediate Send methodsThe addition of the
lengthparameter toSendBinaryImmediatelyandSendMessageImmediatelymethods is consistent with the changes made to the other send methods. This provides the same flexibility for controlling the amount of data sent in immediate mode.Also applies to: 114-114
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1-114: Overall assessment: Positive improvements to IListenWebSocketClient interfaceThe changes made to the
IListenWebSocketClientinterface are well-structured and consistent. They achieve the stated objectives of the PR by:
- Implementing length parameters on send functions, which provides more flexibility in controlling data transmission.
- Exposing new functionalities through the addition of
SendKeepAlive,SendFinalize, andSendClosemethods.These modifications enhance the capabilities of the WebSocket client while maintaining backward compatibility through the use of optional parameters. The changes align well with the goals of improving the functionality and usability of the Deepgram .NET SDK.
93-93: LGTM: Length parameter added to Send methodsThe addition of the
lengthparameter toSend,SendBinary, andSendMessagemethods provides more flexibility in controlling the amount of data sent. This is a good improvement that allows for partial sends of byte arrays.Please ensure that
Constants.UseArrayLengthForSendis properly defined in theConstantsclass. You can verify this by running the following command:Also applies to: 99-99, 104-104
✅ Verification successful
Please run the following script to locate the definition of
UseArrayLengthForSendacross the entire codebase:
Default length handling in constructors is consistent
All instances of
Constants.UseArrayLengthForSendare consistently defined as-1across the codebase, and its usage is clear throughout.🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify the usage and value of Constants.UseArrayLengthForSend. # Test: Search for the definition and usages of UseArrayLengthForSend. rg --type cs "UseArrayLengthForSend" # Display the value assigned to UseArrayLengthForSend. rg --type cs "public\s+const\s+int\s+UseArrayLengthForSend\s*=\s*-1;"Length of output: 3799
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Actionable comments posted: 1
📜 Review details
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Review profile: CHILL
📒 Files selected for processing (10)
- Deepgram.Microphone/Microphone.cs (3 hunks)
- Deepgram/Clients/Interfaces/v1/Constants.cs (1 hunks)
- Deepgram/Clients/Interfaces/v1/IListenWebSocketClient.cs (1 hunks)
- Deepgram/Clients/Interfaces/v1/ISpeakWebSocketClient.cs (3 hunks)
- Deepgram/Clients/Listen/v1/WebSocket/Client.cs (1 hunks)
- Deepgram/Clients/Listen/v1/WebSocket/Constants.cs (1 hunks)
- Deepgram/Clients/Listen/v1/WebSocket/WebSocketMessage.cs (1 hunks)
- Deepgram/Clients/Speak/v1/WebSocket/Client.cs (5 hunks)
- Deepgram/Clients/Speak/v1/WebSocket/Constants.cs (1 hunks)
- Deepgram/Clients/Speak/v1/WebSocket/WebSocketMessage.cs (1 hunks)
🚧 Files skipped from review as they are similar to previous changes (9)
- Deepgram.Microphone/Microphone.cs
- Deepgram/Clients/Interfaces/v1/Constants.cs
- Deepgram/Clients/Interfaces/v1/IListenWebSocketClient.cs
- Deepgram/Clients/Interfaces/v1/ISpeakWebSocketClient.cs
- Deepgram/Clients/Listen/v1/WebSocket/Client.cs
- Deepgram/Clients/Listen/v1/WebSocket/Constants.cs
- Deepgram/Clients/Speak/v1/WebSocket/Client.cs
- Deepgram/Clients/Speak/v1/WebSocket/Constants.cs
- Deepgram/Clients/Speak/v1/WebSocket/WebSocketMessage.cs
🔇 Additional comments not posted (3)
Deepgram/Clients/Listen/v1/WebSocket/WebSocketMessage.cs (3)
7-7: LGTM: Good use ofreadonlyandinternalmodifiers.The
readonlymodifier ensures immutability, which is a good practice for structs. Theinternalaccess modifier is appropriate for this utility struct, limiting its visibility to the assembly.
9-12: LGTM: Good use of constructor chaining for backward compatibility.This constructor maintains backward compatibility while leveraging the new functionality. The use of
Constants.UseArrayLengthForSendas a default value ensures consistency throughout the codebase.
28-32: LGTM: Properties are well-defined and consistent with the struct's purpose.The properties
Length,Message, andMessageTypeare correctly implemented as auto-properties. They are implicitly read-only due to thereadonlystruct modifier, which ensures immutability. The addition of theLengthproperty is consistent with the constructor changes.
| public WebSocketMessage(byte[] message, WebSocketMessageType type, int length) | ||
| { | ||
| if (length != Constants.UseArrayLengthForSend || length < Constants.UseArrayLengthForSend) | ||
| { |
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What is the purpose of the || condition? If length is < -1, then it is a negative number, what does it mean to pass a negative number to ArraySegment? Perhaps you meant the following instead?
if (length != Constants.UseArrayLengthForSend && length <= message.Length) // ensure provided length is valid
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If you pass a negative number (which is invalid), it just takes the length of the buffer. We could also throw an exception.
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But a negative length will go into the top half of the if and will be passed to ArraySegment.
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Seems the following would be best:
if (length != Constants.UseArrayLengthForSend && length <= message.Length && length > 0) // if length is provided ensure it is valid
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I see your point. will make an update for more bumper rails in a follow up PR. In the meantime, I hope that someone would not put in a negative length.
Proposed changes
Addresses: #333, #332
Just like the title says....
Tested STT Microphone example and works as expected.
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Release Notes
New Features
SendClosemethod to facilitate closing streams with optional parameters.Improvements
WebSocketMessagestruct to support variable-length messages.Microphoneclass to improve callback handling for data processing.Bug Fixes