# Cross-Platform Xcecd Process

This is a cross-platform process manager implementation in C that supports both Linux and Windows platforms. The xcecd provides the following features:

- Sending status to the remote controller module at port 6789 and receive job requests
- Maintains a configurable thread pool for request processing
- Periodically collects and updates system resource status
- Manages child processes spawned from received commands
- Caches job status information
- Uses Unix Domain Sockets for communication between the main process and worker processes

## Building

### Prerequisites

- C compiler with C11 support
- Windows: Visual Studio
- Linux: GCC and development tools

### Build Instructions

On Linux
```bash
make
```

On Windows
```bash
nmake
```

## Configuration

The xcecd can be configured through the following parameters in `main.c`:

- `thread_pool_size`: Number of threads in the thread pool (default: 4)
- `resource_update_interval`: Interval for updating system resource status in seconds (default: 1)
- `job_status_update_interval`: Interval for updating job status in seconds (default: 1)
- `port`: Port number to listen on (default: 7869)
- `acct_file_path`: Path to the accounting file (default: `/tmp/xcecd.acct`)
- `log_file_path`: Path to the log file (default: `/tmp/xcecd.log`)
- `domain_sock_path`: Path to the Unix Domain Socket file (default: `/tmp/xcecd.sock`)
- `remote_host`: Remote server address (default: `lchen02`)
- `remote_port`: Remote server port (default: 6789)
- `update_interval`: Interval for sending status updates to the remote server (default: 1 second)

## Usage

### Starting the Xcecd

On Windows:
```bash
xcecd.exe
```

On Linux:
```bash
./xcecd
```

## Features

1. **Cross-Platform Support**
   - Works on both Windows and Linux
   - Abstracts platform-specific implementations

2. **Thread Pool**
   - Configurable number of worker threads
   - Efficient request handling

3. **System Monitoring**
   - CPU usage monitoring
   - Memory usage monitoring
   - Disk space monitoring

4. **Process Management**
   - Spawns child processes for received commands
   - Tracks process status
   - Manages process lifecycle

5. **Network Communication**
   - TCP socket-based communication
   - Simple text-based protocol

6. **Unix Domain Socket Communication**
   - Uses Unix Domain Sockets for communication between the main process and worker processes

## Architecture

The xcecd is composed of several key components:

- **Main Process**: Coordinates all components and manages the lifecycle
- **Thread Pool**: Handles concurrent request processing
- **System Monitor**: Collects and updates system resource information
- **Process Manager**: Manages child processes and their status
- **Network Handler**: Handles network communication and request receiving
- **Resource Sync**: Synchronizes and aggregates resource collection thread, system monitor, and job information

## Contributing

Feel free to submit issues and enhancement requests!