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[ISSUE #2372]👻Channel add send method🚀 #2373

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Merged
merged 1 commit into from
Jan 23, 2025
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mxsm
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@mxsm mxsm commented Jan 23, 2025

Which Issue(s) This PR Fixes(Closes)

Fixes #2372

Brief Description

How Did You Test This Change?

Summary by CodeRabbit

  • New Features
    • Added a new method for sending RPC commands without waiting for a response
    • Enhanced channel communication capabilities for asynchronous messaging

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coderabbitai bot commented Jan 23, 2025

Walkthrough

The pull request introduces a new asynchronous send method to the Channel struct in the RocketMQ remoting module. This method allows sending a RemotingCommand without expecting a response, providing a direct way to transmit commands through the channel. The implementation handles potential send failures by logging errors and returning an appropriate result, complementing existing channel communication methods.

Changes

File Change Summary
rocketmq-remoting/src/net/channel.rs Added pub async fn send(&mut self, request: RemotingCommand) -> Result<()> method to Channel struct

Assessment against linked issues

Objective Addressed Explanation
Add send method to Channel [#2372]

Possibly related PRs

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Sending commands with async might!
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🔊@mxsm 🚀Thanks for your contribution🎉!

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@rocketmq-rust-bot rocketmq-rust-bot added the AI review first Ai review pr first label Jan 23, 2025
@rocketmq-rust-robot rocketmq-rust-robot added this to the v0.4.0 milestone Jan 23, 2025
@rocketmq-rust-robot rocketmq-rust-robot added the feature🚀 Suggest an idea for this project. label Jan 23, 2025
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Actionable comments posted: 2

🧹 Nitpick comments (2)
rocketmq-remoting/src/net/channel.rs (2)

248-255: Consider refactoring to reduce code duplication.

The error handling logic is duplicated across send, send_one_way, and send_wait_response. Consider extracting the common pattern into a private helper method.

Here's a suggested refactor:

+    async fn send_internal(
+        &mut self,
+        request: RemotingCommand,
+        response_tx: Option<tokio::sync::oneshot::Sender<Result<RemotingCommand>>>,
+        timeout_millis: Option<u64>,
+    ) -> Result<()> {
+        if let Err(err) = self.tx.send((request, response_tx, timeout_millis)).await {
+            error!("send request failed: {}", err);
+            return Err(ChannelSendRequestFailed(err.to_string()));
+        }
+        Ok(())
+    }
+
     pub async fn send(&mut self, request: RemotingCommand) -> Result<()> {
         let request = request.mark_oneway_rpc();
-        if let Err(err) = self.tx.send((request, None, None)).await {
-            error!("send request failed: {}", err);
-            return Err(ChannelSendRequestFailed(err.to_string()));
-        }
-        Ok(())
+        self.send_internal(request, None, None).await
     }

248-255: Consider renaming for clarity.

The method name send is quite generic. Consider a more descriptive name that better reflects its fire-and-forget nature, distinguishing it from send_one_way.

Suggested alternatives:

  • send_fire_and_forget
  • send_without_timeout
  • send_async_one_way
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Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between a5f472b and 2464992.

📒 Files selected for processing (1)
  • rocketmq-remoting/src/net/channel.rs (1 hunks)
⏰ Context from checks skipped due to timeout of 90000ms (9)
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  • GitHub Check: auto-approve

Comment on lines +248 to +255
pub async fn send(&mut self, request: RemotingCommand) -> Result<()> {
let request = request.mark_oneway_rpc();
if let Err(err) = self.tx.send((request, None, None)).await {
error!("send request failed: {}", err);
return Err(ChannelSendRequestFailed(err.to_string()));
}
Ok(())
}
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🛠️ Refactor suggestion

Add documentation for the new send method.

The new method lacks documentation explaining its purpose, behavior, and how it differs from send_one_way. Consider adding a doc comment that includes:

  • Purpose of the method
  • Explanation of one-way RPC behavior
  • Difference from send_one_way
  • Error conditions

Add documentation like this:

+    /// Sends a one-way RPC command without waiting for a response and without a timeout.
+    ///
+    /// Unlike `send_one_way`, this method doesn't require a timeout parameter, making it
+    /// suitable for fire-and-forget scenarios where timing isn't critical.
+    ///
+    /// # Arguments
+    /// * `request` - The command to send
+    ///
+    /// # Returns
+    /// * `Ok(())` if the send was successful
+    /// * `Err(ChannelSendRequestFailed)` if the send operation failed
+    ///
+    /// # Examples
+    /// ```no_run
+    /// # use rocketmq_remoting::RemotingCommand;
+    /// # async fn example(mut channel: Channel) -> Result<()> {
+    /// let command = RemotingCommand::new();
+    /// channel.send(command).await?;
+    /// # Ok(())
+    /// # }
+    /// ```
     pub async fn send(&mut self, request: RemotingCommand) -> Result<()> {

Comment on lines +247 to +255

pub async fn send(&mut self, request: RemotingCommand) -> Result<()> {
let request = request.mark_oneway_rpc();
if let Err(err) = self.tx.send((request, None, None)).await {
error!("send request failed: {}", err);
return Err(ChannelSendRequestFailed(err.to_string()));
}
Ok(())
}
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💡 Codebase verification

The review comment is correct - the send method lacks test coverage

The verification confirms there are no tests for the send method:

  • No unit tests in the test module of channel.rs
  • No integration tests in the codebase
  • No tests covering this functionality anywhere else

Tests should be added to verify:

  • Successful send operation
  • Error handling for failed sends
  • One-way RPC marking behavior
🔗 Analysis chain

Add tests for the new send method.

The new method lacks test coverage. Consider adding tests that verify:

  • Successful send operation
  • Error handling for failed sends
  • One-way RPC marking

Let's verify the test coverage:

Would you like me to generate comprehensive test cases for the new method?

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Check if there are any tests for the new send method
rg -B 2 -A 2 'fn.*test.*send' rocketmq-remoting/src/net/channel.rs

Length of output: 68


Script:

#!/bin/bash
# Check for test module in channel.rs
echo "=== Checking for test module in channel.rs ==="
rg "#\[cfg\(test\)\]" rocketmq-remoting/src/net/channel.rs -A 5

echo -e "\n=== Checking for separate test files ==="
fd "test.*\.rs" rocketmq-remoting/

echo -e "\n=== Checking for specific test files containing 'channel' ==="
fd "channel.*test.*\.rs|test.*channel.*\.rs" rocketmq-remoting/

echo -e "\n=== Checking content of src directory for test organization ==="
ls -R rocketmq-remoting/src/

Length of output: 7096


Script:

#!/bin/bash
# Check for integration tests
echo "=== Checking for integration tests ==="
fd "integration.*test.*\.rs|test.*integration.*\.rs" rocketmq-remoting/
ls -la rocketmq-remoting/tests 2>/dev/null || echo "No tests directory found"

# Check if send method is tested anywhere in the codebase
echo -e "\n=== Checking for any tests using send method ==="
rg "test.*send.*\{" rocketmq-remoting/ -A 5

Length of output: 411

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codecov bot commented Jan 23, 2025

Codecov Report

Attention: Patch coverage is 0% with 8 lines in your changes missing coverage. Please review.

Project coverage is 28.64%. Comparing base (a5f472b) to head (2464992).
Report is 1 commits behind head on main.

Files with missing lines Patch % Lines
rocketmq-remoting/src/net/channel.rs 0.00% 8 Missing ⚠️
Additional details and impacted files
@@            Coverage Diff             @@
##             main    #2373      +/-   ##
==========================================
- Coverage   28.65%   28.64%   -0.01%     
==========================================
  Files         507      507              
  Lines       73251    73259       +8     
==========================================
  Hits        20988    20988              
- Misses      52263    52271       +8     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

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LGTM

@rocketmq-rust-bot rocketmq-rust-bot merged commit 7711374 into main Jan 23, 2025
25 of 26 checks passed
@rocketmq-rust-bot rocketmq-rust-bot added approved PR has approved and removed ready to review waiting-review waiting review this PR labels Jan 23, 2025
@mxsm mxsm deleted the feature-2372 branch January 23, 2025 07:11
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[Feature🚀] Channel add send method
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