This bug prevent use FCGI.pm with threads. Does somebody has a working solution to use FCGI in main thread?

It isn't a bug. It means that FCGI is not thread-safe.

And given what FCGI does:

Instead of creating a new process for each request, FastCGI uses persistent processes to handle a series of requests. These processes are owned by the FastCGI server, not the web server. 1

To service an incoming request, the web server sends environment information and the page request itself to a FastCGI process over a socket (in the case of local FastCGI processes on the web server) or TCP connection (for remote FastCGI processes in a server farm). Responses are returned from the process to the web server over the same connection, and the web server subsequently delivers that response to the end-user. The connection may be closed at the end of a response, but both the web server and the FastCGI service processes persist.2

Each individual FastCGI process can handle many requests over its lifetime, thereby avoiding the overhead of per-request process creation and termination. Processing of multiple requests simultaneously can be achieved in several ways: by using a single connection with internal multiplexing (i.e. multiple requests over a single connection); by using multiple connections; or by a combination of these techniques. Multiple FastCGI servers can be configured, increasing stability and scalability.

it almost certainly could never be thread-safe.

If you describe why you think you need threads, maybe we can help.

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In reply to Re: [FCGI.pm] - not threads-safe? by BrowserUk
in thread [FCGI.pm] - not threads-safe? by zdm

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