sicd: add SIGPIPE/SIG_IGN porting note at EPIPE catch site

CPython sets SIGPIPE to SIG_IGN so EPIPE surfaces as BrokenPipeError. A Go port must replicate this explicitly or the EPIPE path silently becomes a SIGPIPE death. 24/24 green.
2026-07-23 01:05:39 +02:00
parent 833a0432b8
commit a0f93c16cf
1 changed files with 4 additions and 0 deletions
@@ -113,6 +113,10 @@ def main() -> None:
                    break
                write_all(w_fd, chunk)
        except BrokenPipeError:
+            # CPython sets SIGPIPE to SIG_IGN at startup, so EPIPE surfaces
+            # as BrokenPipeError instead of killing the process. A port to
+            # another language (Go, etc.) must replicate this explicitly or
+            # the EPIPE path silently becomes a SIGPIPE death.
            pass
        except OSError as e:
            sys.stderr.write(f"sicd: stdin read error: {e}\n")