feat(tracer): add configuration for connection mode

[Leiyks]

Description

Reviewer checklist

• Test coverage seems ok.
• Appropriate labels assigned.

[datadog-official]

⚠️ Tests

✨ Fix all issues with Cursor

⚠️ Warnings

❄️ 12 New flaky tests detected

getdate_variation3.phpt - Test getdate() function : usage variation - Passing hexadcimal timestamp values from php-src.php-src.ext.date.tests (Datadog) (Fix with Cursor)

081+ thread '<unnamed>' panicked at libdatadog/libdd-crashtracker/src/collector/process_handle.rs:21:9:
082+ assertion \`left == right\` failed: wait_for_pollhup failed: Ok(false)
083+   left: Ok(false)
084+  right: Ok(true)
085+ note: run with \`RUST_BACKTRACE=1\` environment variable to display a backtrace
086+ thread '<unnamed>' panicked at core/src/panicking.rs:223:5:
087+ panic in a function that cannot unwind
088+ stack backtrace:
089+ panicked at std/src/../../backtrace/src/backtrace/libunwind.rs:109:13:
090+ cannot panic during the backtrace function
...

bug54970.phpt - Bug #54970 (SplFixedArray::setSize() isn't resizing) from php-src.php-src.ext.spl.tests (Datadog) (Fix with Cursor)

016+ Segmentation fault (core dumped)
017+ 
018+ Termsig=11

bug73029.phpt - Bug #73029: Missing type check when unserializing SplArray from php-src.php-src.ext.spl.tests (Datadog) (Fix with Cursor)

003+ Segmentation fault (core dumped)
004+ 
005+ Termsig=11

View all

🧪 2344 Tests failed

testInstrumentation from custom-framework-autoloading-test.DDTrace\Tests\Integrations\Custom\Autoloaded\InstrumentationTest (Datadog) (Fix with Cursor)

DDTrace\Tests\Integrations\Custom\Autoloaded\InstrumentationTest::testInstrumentation
Failed asserting that an array has the key 'logs_created'.

tests/Integrations/Custom/Autoloaded/InstrumentationTest.php:79
tests/Common/RetryTraitVersionGeneric.php:28

    testSearchPhpBinaries from integration.DDTrace\Tests\Integration\PHPInstallerTest (Fix with Cursor)

    testSimplePushAndProcess from laravel-58-test.DDTrace\Tests\Integrations\Laravel\V5_8\QueueTest (Fix with Cursor)

View all

_{This comment will be updated automatically if new data arrives.
🔗 Commit SHA: fc0350a | Docs | Datadog PR Page | Was this helpful? Give us feedback!}

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 61.91%. Comparing base (4a26042) to head (fc0350a).
⚠️ Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3573      +/-   ##
==========================================
+ Coverage   61.90%   61.91%   +0.01%     
==========================================
  Files         140      140              
  Lines       13281    13281              
  Branches     1758     1758              
==========================================
+ Hits         8221     8223       +2     
+ Misses       4272     4269       -3     
- Partials      788      789       +1     

see 1 file with indirect coverage changes

---

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[pr-commenter]

Benchmarks [ tracer ]

Benchmark execution time: 2026-01-13 14:17:00

Comparing candidate commit fc0350a in PR branch leiyks/sidecar-threaded-fallback with baseline commit 4a26042 in branch master.

Found 1 performance improvements and 6 performance regressions! Performance is the same for 187 metrics, 0 unstable metrics.

scenario:MessagePackSerializationBench/benchMessagePackSerialization

• 🟥 execution_time [+4.420µs; +5.080µs] or [+4.383%; +5.039%]

scenario:MessagePackSerializationBench/benchMessagePackSerialization-opcache

• 🟥 execution_time [+2.479µs; +3.981µs] or [+2.328%; +3.739%]

scenario:PHPRedisBench/benchRedisBaseline-opcache

• 🟩 execution_time [-4.501µs; -3.165µs] or [-3.094%; -2.175%]

scenario:SamplingRuleMatchingBench/benchRegexMatching1

• 🟥 execution_time [+97.710ns; +142.890ns] or [+8.351%; +12.212%]

scenario:SamplingRuleMatchingBench/benchRegexMatching2

• 🟥 execution_time [+88.020ns; +159.380ns] or [+7.557%; +13.684%]

scenario:SamplingRuleMatchingBench/benchRegexMatching3

• 🟥 execution_time [+90.883ns; +144.317ns] or [+7.784%; +12.361%]

scenario:SamplingRuleMatchingBench/benchRegexMatching4

• 🟥 execution_time [+109.747ns; +148.853ns] or [+9.522%; +12.915%]