In preparation for the deprecation of `stdenv.isX`.
These shorthands are not conducive to cross-compilation because they
hide the platforms.
Darwin might get cross-compilation for which the continued usage of `stdenv.isDarwin` will get in the way
One example of why this is bad and especially affects compiler packages
https://www.github.com/NixOS/nixpkgs/pull/343059
There are too many files to go through manually but a treewide should
get users thinking when they see a `hostPlatform.isX` in a place where it
doesn't make sense.
```
fd --type f "\.nix" | xargs sd --fixed-strings "stdenv.is" "stdenv.hostPlatform.is"
fd --type f "\.nix" | xargs sd --fixed-strings "stdenv'.is" "stdenv'.hostPlatform.is"
fd --type f "\.nix" | xargs sd --fixed-strings "clangStdenv.is" "clangStdenv.hostPlatform.is"
fd --type f "\.nix" | xargs sd --fixed-strings "gccStdenv.is" "gccStdenv.hostPlatform.is"
fd --type f "\.nix" | xargs sd --fixed-strings "stdenvNoCC.is" "stdenvNoCC.hostPlatform.is"
fd --type f "\.nix" | xargs sd --fixed-strings "inherit (stdenv) is" "inherit (stdenv.hostPlatform) is"
fd --type f "\.nix" | xargs sd --fixed-strings "buildStdenv.is" "buildStdenv.hostPlatform.is"
fd --type f "\.nix" | xargs sd --fixed-strings "effectiveStdenv.is" "effectiveStdenv.hostPlatform.is"
fd --type f "\.nix" | xargs sd --fixed-strings "originalStdenv.is" "originalStdenv.hostPlatform.is"
```
Changed
- Connection identifier is now included in the error log if we can't forward a
- seqno request.
- Garbage collection time for source entries has been increased from 5 to 30 minutes
- for now.
- The router implementation has been changed to use regular locks instead of an
- always readable concurrency primitive for all but the actual routing table. This
- should reduce the memory consumption a bit.
- Public key and shared secret for a destination are now saved on the router, instead
- of maintaining a separate mapping for them. This slightly reduces memory consumption
- of the router, and ensures stale data is properly cleaned up when all routes to
- a subnet are removed.
- Hello packets now set the interval in which the next Hello will be sent properly
- in centiseconds.
- IHU packets now set the interval properly in centiseconds.
- IHU packets now set an RX cost. For now this is the link cost, in the future
- this will be set properly.
- Route expiration time is now calculated from the interval received in updates.
- Ip address derivation from public keys now uses the blake3 hash algorithm.
Fixed
- Don't try to forward seqno requests to a peer if we know its connection is dead.
