Block remote config signals during ftp functions

[bwoebi]

These are sensitive to EINTR, so block the signal during their execution.

Fixes #2952.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 66.52%. Comparing base (d1a8696) to head (19dcc2f).
Report is 1 commits behind head on bob/live-debugger-dedup.

Additional details and impacted files

@@                    Coverage Diff                     @@
##             bob/live-debugger-dedup    #2957   +/-   ##
==========================================================
  Coverage                      66.52%   66.52%           
  Complexity                      2739     2739           
==========================================================
  Files                            109      109           
  Lines                          10831    10831           
==========================================================
  Hits                            7205     7205           
  Misses                          3626     3626           

Flag	Coverage Δ
tracer-php	66.52% <ø> (ø)

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[pr-commenter]

Benchmarks [ tracer ]

Benchmark execution time: 2024-11-15 22:15:46

Comparing candidate commit 19dcc2f in PR branch bob/block-ftp-sigprocmask with baseline commit d1a8696 in branch bob/live-debugger-dedup.

Found 1 performance improvements and 0 performance regressions! Performance is the same for 177 metrics, 0 unstable metrics.

scenario:TraceFlushBench/benchFlushTrace

• 🟩 execution_time [-1000.000ns; -1000.000ns] or [-50.000%; -50.000%]