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Changelog

All notable changes to this project will be documented in this file.

[1.4.0] - 2025-12-27

Added

  • Average heartbeat count tracking before crashes/resets.
  • Child process isolation using setsid() to prevent signal propagation.

Changed

  • Heartbeat timing now uses CLOCK_MONOTONIC instead of wall-clock time to prevent issues with NTP adjustments and system clock changes.
  • Signal handler variables now use sig_atomic_t for safe signal handling.
  • CPU statistics use float instead of double to reduce memory footprint.
  • Separated CPU and memory monitoring into independent functions.

Fixed

  • Static buffer in printDate() replaced with caller-provided buffer.
  • Buffer overflow in stats filename generation.
  • Child processes now close inherited file descriptors before exec.

[1.3.0] - 2025-08-24

Added

  • Flexible periodic reboot feature. Supports daily time (HH:MM) and intervals in hours (h), days (d), weeks (w), and months (m).

[1.2.0] - 2025-08-23

Added

  • Monitor and log CPU and memory usage for each application.

[1.1.0] - 2025-08-17

Added

  • CMake support for building the project.

Changed

  • Refactored code: inlined wrappers, tidied up, and reformatted.
  • Modularized code: moved command parsing to cmd.c, heartbeat functions to heartbeat.c, process control functions to process.c, and INI parsing to config.c.

[1.1.0] - 2025-06-30

Changed

  • Improved INI format for arrays of processes.

[1.0.0] - 2025-04-26

Changed

  • Updated GitHub Actions for building and testing.
  • Improved makefile.
  • Enhanced application management: renamed nWdtApps to n_apps, improved start/restart/terminate functionality.
  • Improved config parsing safety.
  • Added support for non-heartbeat processes.
  • Updated test_child to support non-heartbeat processes.
  • Print unknown commands as hex with safe bounds and printable fallback.

Fixed

  • Quoting in run.sh.
  • Reduced test time to 300 seconds.
  • Set signal to USR1 for normal exit.
  • Log file printing.

[0.1.0] - 2024-08-31

Added

  • Initial project setup, CI creation, and basic makefile.

Changed

  • Replaced "ping" with "heartbeat" in code and INI configuration.
  • Updated README.md and Makefile.