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Contents
# Passenger Agent This directory contains the source code of the Passenger agent. The Passenger agent is a single executable that consists of multiple parts. Within each subdirectory, you will find the source code of that particular part. ## Important parts The most important parts are: * The Watchdog is the main Passenger process. It starts the Passenger Core and the UstRouter, and restarts them when they crash. It also cleans everything up upon shut down. * The Core performs most of the heavy lifting. It parses requests, spawns application processes, forwards requests to the correct process and forwards application responses back to the web server. * The UstRouter processes Union Station data and sends them to the Union Station server. ## Minor parts * SpawnPreparer is a tool used internally by the Core to spawn application processes. * SystemMetrics is a tool that shows system metrics such as CPU and memory usage. The main functionality is implemented in src/cxxUtils/SystemMetricsCollector.h. This tool is mainly useful for developing and debugging SystemMetricsCollector.h. * TempDirToucher is a tool used internally by Passenger Standalone to keep a temporary directory's timestamp up-to-date so that it doesn't get removed by /tmp cleaner daemons. ## Shared code There is also code that is shared between the different agent parts. That code is located in `Shared`. Unlike `src/cxx_supportlib`, which is meant to be usable outside Passenger, the code in `Shared` is Passenger-specific.
Version data entries
24 entries across 24 versions & 2 rubygems