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2024-10-05libstore: check for interrupts in parallel promiseeldritch horrors
this simplifies the worker loop, and lets us remove it entirely later. note that ideally only one promise waiting for interrupts should exist in the entire system. not one per event loop, one per *process*. extra interrupt waiters make interrupt response nondeterministic and as such aren't great for user experience. if anything wants to react to aborts caused by explicit interruptions, or anything else, those things would be much better served using RAII guards such as Finally (or KJ_DEFER). Change-Id: I41d035ff40172d536e098153c7375b0972110d51
2024-10-01Split ignoreException to avoid suppressing CTRL-CRobert Hensing
This splits `ignoreException` into `ignoreExceptionExceptInterrupt` (which ignores all exceptions except `Interrupt`, which indicates a SIGINT/CTRL-C) and `ignoreExceptionInDestructor` (which ignores all exceptions, so that destructors do not throw exceptions). This prevents many cases where Nix ignores CTRL-C entirely. See: https://github.com/NixOS/nix/issues/7245 Upstream-PR: https://github.com/NixOS/nix/pull/11618 Change-Id: Ie7d2467eedbe840d1b9fa2e88a4e88e4ab26a87b
2024-08-26treewide: fix a bunch of lintsJade Lovelace
Fixes: - Identifiers starting with _ are prohibited - Some driveby header dependency cleaning which wound up with doing some extra fixups. - Fucking C style casts, man. C++ made these 1000% worse by letting you also do memory corruption with them with references. - Remove casts to Expr * where ExprBlackHole is an incomplete type by introducing an explicitly-cast eBlackHoleAddr as Expr *. - An incredibly illegal cast of the text bytes of the StorePath hash into a size_t directly. You can't DO THAT. Replaced with actually parsing the hash so we get 100% of the bits being entropy, then memcpying the start of the hash. If this shows up in a profile we should just make the hash parser faster with a lookup table or something sensible like that. - This horrendous bit of UB which I thankfully slapped a deprecation warning on, built, and it didn't trigger anywhere so it was dead code and I just deleted it. But holy crap you *cannot* do that. inline void mkString(const Symbol & s) { mkString(((const std::string &) s).c_str()); } - Some wrong lints. Lots of wrong macro lints, one wrong suspicious-sizeof lint triggered by the template being instantiated with only pointers, but the calculation being correct for both pointers and not-pointers. - Exceptions in destructors strike again. I tried to catch the exceptions that might actually happen rather than all the exceptions imaginable. We can let the runtime hard-kill it on other exceptions imo. Change-Id: I71761620846cba64d66ee7ca231b20c061e69710
2024-05-29util.hh: Delete remaining file and clean up headersTom Hubrecht
Change-Id: Ic1f68e6af658e94ef7922841dd3ad4c69551ef56
2024-05-29util.{hh,cc}: Split out terminal.{hh,cc}Tom Hubrecht
Change-Id: I9de2296b4012d50f540124001d54d6ca3be4c6da
2024-05-13libutil: remove the interrupt-blocking codeAlois Wohlschlager
The interrupt-blocking code was originally introduced 20 years ago so that trying to log an error message does not result in an interrupt exception being thrown and then going unhandled (c8d3882cdc8f9e22c58af285c1996265c1af75d5). However, the logging code does not check for interrupts any more (054be5025762c5e1c7e853c4fa5d7eed8da1727f), so this reasoning is no longer applicable. Delete this code so that later interrupts are unblocked again, for example in the next line entered into the repl. Closes: https://git.lix.systems/lix-project/lix/issues/296 Change-Id: I48253f5f4272e75001148c13046e709ef5427fbd
2024-03-11util.hh: split out signals stuffJade Lovelace
Copies part of the changes of ac89bb064aeea85a62b82a6daf0ecca7190a28b7 Change-Id: I9ce601875cd6d4db5eb1132d7835c5bab9f126d8