brndnmtthws/conky

[Feature]: Implement `-U` (single instance) option for BSD & MacOS

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#2,072 opened on 2024年11月7日

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featuregood first issuehelp wantedos: dragonflyos: macosos: solaris

説明

With #2049 merged, conky now supports -U option on Linux which makes it exit early if it detects another instance running. This feature requires a separate implementation for other platforms as they keep track of running processes differently.

I'm opening this tracking issue to track progress on support for other platforms Conky can currently run on.

Following platforms are currently supported:

  • Linux
  • BSD
    • DragonFly
    • FreeBSD
    • NetBSD
    • OpenBSD
  • Haiku
  • MacOS
  • Solaris

If you're interested, open a PR and mention this issue (just don't use "closes" phrasing) so it shows up here. Once support for all platforms is implemented this issue will be closed.

コントリビューターガイド

技術スタック
cpp
領域
desktopcli
Issue 種別
feature
難度新しい貢献者にとっての実装難度です。1 は非常に小さな変更、5 は専門的な作業です。
4
推定時間経験ある貢献者が調査、実装、テスト、pull request 準備にかけるおおよその時間範囲です。
over 1 week
活動状況Issue が今どれだけ取り組みやすいかを示します。新しい、活発、古い、ブロック中、またはメンテナー入力待ちなどです。
fresh
明確さ期待される変更、受け入れ条件、次の手順がどれだけ明確かを示します。
clear
前提条件
C++System programming on BSD/macOS/SolarisConky architecture
初心者向け度初回貢献者にどれだけ取り組みやすいかを 1-100 で推定したスコアです。
25
調査方針
The issue requires implementing the U (single instance) option for DragonFly BSD, macOS, and Solaris, similar to the Linux implementation in PR #2049. Each platform needs a mechanism to detect a running instance, such as using pid files with fcntl locking, or platform specific APIs like named semaphores or Mach ports. The existing conky source code should be studied, especially the placement of the Linux implementation (likely in src/linux.cc or similar). For BSD, consider using sysctl or procfs; for macOS, use NSApplication or similar; for Solaris, use door calls or pidfile. The implementation should be coordinated with the existing build system to conditionally compile platform specific code.