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Commit 69266555 authored by Ruslan Valiullin's avatar Ruslan Valiullin Committed by Cesanta Bot
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add to cgi doc note about zombies 

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docs/http/cgi.md
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...@@ -29,3 +29,7 @@ Example: ...@@ -29,3 +29,7 @@ Example:
```c ```c
opts.cgi_interpreter = "C:\\ruby\\ruby.exe"; opts.cgi_interpreter = "C:\\ruby\\ruby.exe";
``` ```
NOTE: In the CGI handler we don't use explicitly a system call waitpid() for
reaping zombie processes. Instead, we set the SIGCHLD handler to SIG_IGN.
It will cause zombie processes to be reaped automatically.
CAUTION: not all OSes (e.g. QNX) reap zombies if SIGCHLD is ignored.
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