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Document the new cleanup function using a Doxygen-style comment

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Jean-François Roche 2025-11-04 20:56:15 +00:00
parent 4f85cfe824
commit 0507674a13
1 changed files with 9 additions and 0 deletions
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9
src/libstore/unix/build/darwin-derivation-builder.cc
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@ -227,6 +227,15 @@ struct DarwinDerivationBuilder : DerivationBuilderImpl
NULL, drv.builder.c_str(), NULL, &attrp, stringsToCharPtrs(args).data(), stringsToCharPtrs(envStrs).data());
}
/**
* Cleans up all System V IPC objects owned by the specified user.
*
* On Darwin, IPC objects (shared memory segments, message queues, and semaphore)
* can persist after the build user's processes are killed, since there are no IPC namespaces
* like on Linux. This can exhaust kernel IPC limits over time.
*
* Uses sysctl to enumerate and remove all IPC objects owned by the given UID.
*/
void cleanupSysVIPCForUser(uid_t uid)
{
struct IpcsCommand ic;