fix(process_group_manager): standardize ProcessInfoNode logs - #609
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shegazyy
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September 7, 2026 13:53
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Maybe it would be good for readability if we always put the identifier at the beginning of the message? |
| std::atomic_store(&control_client_channel_, ControlClientChannel::getControlClientChannel(sync_)); | ||
| } | ||
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| std::string ProcessInfoNode::logId() const |
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I like the idea of having this reusable method.
Currently, though this causes heap allocation on every call which we need to avoid after initialization.
So I think we need to come up with a way that does not require heap after construction
NicolasFussberger
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…-score#570) Add a private logId() helper that renders a consistent identity string, "Name: <name>, PID: <pid>", and use it at all 19 call sites in ProcessInfoNode that previously formatted process identity differently ("process X", "process (X)", "process X pid Y", "pid Y (X)", ...). Also fixes a bug at startProcess(): a log statement streamed the raw 'this' pointer instead of process identity, which prints as "1"/"true" under the fallback console logger instead of anything useful. Two logs that previously omitted process identity entirely (file-wait error, PID-map insertion failure) now include it too.
Per review feedback (NicolasFussberger): logId() returned std::string,
heap-allocating on every log call, which must be avoided after
initialization.
- logId() now returns ProcessLogId, a small trivially-copyable struct
(IdentifierHash + osal::ProcessID) instead of building a std::string.
Formatting happens only when a log line is actually printed, via
operator<< overloads for both std::ostream and score::mw::log::LogStream
(mirroring the exact dual-overload pattern IdentifierHash already
uses for the two supported logging backends). No heap allocation.
Per review feedback (danth): for readability, the process identity
should consistently lead every log message rather than appearing in
the middle or at the end.
- Reordered all 19 call sites so every one now reads
`LM_LOG_*() << logId() << "<description>";`, replacing the previous
mixed styles ("Setting up alive supervision for" << logId(),
"Starting" << logId() << "from executable" ..., etc.).
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@NicolasFussberger changes are applied, and ready for review whenever you have the time |
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Add a private logId() helper that renders a consistent identity string, "Name: , PID: ", and use it at all 19 call sites in ProcessInfoNode that previously formatted process identity differently ("process X", "process (X)", "process X pid Y", "pid Y (X)", ...).
Also fixes a bug at startProcess(): a log statement streamed the raw 'this' pointer instead of process identity, which prints as "1"/"true" under the fallback console logger instead of anything useful.
Two logs that previously omitted process identity entirely (file-wait error, PID-map insertion failure) now include it too.
fixes #570