# Setup any specified hard limit on the virtual size of the process
-if defined?(HARD_MEMORY_LIMIT) and Process.const_defined?(:RLIMIT_AS)
+if defined?(HARD_MEMORY_LIMIT) and defined?(PhusionPassenger) and Process.const_defined?(:RLIMIT_AS)
Process.setrlimit Process::RLIMIT_AS, HARD_MEMORY_LIMIT*1024*1024, Process::RLIM_INFINITY
end
def initialize(app)
@app = app
end
-
+
def call(env)
# Process this requst
status, headers, body = @app.call(env)
-
+
# Restart if we've hit our memory limit
if resident_size > SOFT_MEMORY_LIMIT
Process.kill("USR1", Process.pid)
end
-
+
# Return the result of this request
[status, headers, body]
end
fields = File.open("/proc/self/statm") do |file|
fields = file.gets.split(" ")
end
-
+
# Return resident size in megabytes
return fields[1].to_i / 256
end