lib/cocaine/command_line/runners/posix_runner.rb in cocaine-0.5.5 vs lib/cocaine/command_line/runners/posix_runner.rb in cocaine-0.5.6

@@ -2,14 +2,13 @@
 
 module Cocaine
   class CommandLine
     class PosixRunner
       def self.available?
-        require 'posix/spawn'
-        true
-      rescue LoadError
-        false
+        return @available unless @available.nil?
+
+        @available = posix_spawn_gem_available?
       end
 
       def self.supported?
         available? && !OS.java?
       end
@@ -40,8 +39,16 @@
 
       def waitpid(pid)
         Process.waitpid(pid)
       end
 
+      def self.posix_spawn_gem_available?
+        require 'posix/spawn'
+        true
+      rescue
+        false
+      end
+
+      private_class_method :posix_spawn_gem_available?
     end
   end
 end