WIP

std.Io: add documentation to Batch

std.Io.Threaded: rework file reading to observe nonblocking flag

std.Io.File: add non-blocking flag

std.Io.Threaded: stop checking bytes read with END_OF_FILE

Io.Batch: implement alternate API

std.process: simplify RunError set

std.Build.Step: evalZigProcess handles EndOfStream

std.Io.Threaded: handle TIMEOUT from NtDelayExceution

std.Build: fully upgrade Step.Run to std.Io timing (and fix a typo)

std.Io.Threaded: fix ntdll timeouts on Windows

std.Io.Threaded: ntReadFileResult handles EOF + bytes available

std.Io.Threaded: compress ntReadFile logic

std.Io.Threaded.batchWait better fix for any_done

std.Io.Threaded.batchWaitWindows: eager result sets any_done true

std.Io.Threaded: add missing check for pending status in batchCancel

std.process.run: use Io.File.MultiReader

build.zig: only-c implies no-lib

std.Io.File.MultiReader: make checkAnyError exclude EndOfStream

std: remove error.BrokenPipe from file reads, add error.EndOfStream

std.Io.Threaded: move the NtDelayExecution later in batchWait

std.Io.Threaded: fix bad use of AlertableSyscall

std.Build.Step.Run: gracefully handle test runner misbehavior

std.Io.Threaded: batchWait and batchCancel for Windows

std.Io.Threaded: resolve merge conflicts

build: adjust max_rss for behavior tests

incr-check: update to std.Io.File.MultiReader

update doctest API usage

std.Io.Threaded: fix compilation error on some systems

std.Io.Threaded: fix compilation failures on Windows

tools: update for std.process API changes

std.Io.Threaded: fix batchWait impl

std.Io.Threaded: fix error set

compiler: update for std.Io.File.MultiReader API

std.Io.operate: fix bogus catch

std.Io.File.MultiReader: implementation fixes

std: update rest of build runner to new File.MultiReader API

std.Io.File: introduce MultiReader

std.Io.Threaded: delete dead code

Build.WebServer: update concurrency API usage

Io: add ring to `Batch` API

std.Io.Threaded: super broken Windows impl of batch

std.process.Child.collectOutput: change back to other impl

std.Io: exploring a different batch API proposal

Revert "std.process.Child: rewrite using concurrent"

std.process.Child: rewrite using concurrent

fix error set

std.Io.Threaded: set poll_buffer_len to 32

std.Io.Threaded.operate: handle poll buffer exceeded

std.Io.Threaded.operate: handle cancelation and poll errors

std.Io: simplify operate function

std.Io: proof-of-concept "operations" API

std.Io: delete the poll API

Io.Threaded: fix UAF-induced crashes during asynchronous operations

std.Io.Threaded: fix NtDelayExecution delay interval

std.Io.Threaded: handle some more error codes from NtReadFile

std.Io.Threaded: avoid extra fields of Thread

std.Io.Threaded: don't pass null to NtDelayExecution

std.Io.Threaded: implement APC cancelation

std.Io.Threaded: introduce Thread.InterruptMethod

std.Io.Threaded: add some temporary, choice panics

std: back out the flags field of Io.File

std.Io: give File a nonblocking bit on Windows

zstd.Decompress: smarter rebase when discarding (#30891)

Merge pull request 'add `std.Io.net.Socket.createPair` + handful of `std.posix` removals' (#31056) from std.posix-removals into master

Io.Threaded: limit copy_file_range len to prevent EOVERFLOW

Merge pull request 'Compilation: make libzigc share zcu if possible' (#31037) from GasInfinity/zig:libc-share-zcu into master

Merge pull request 'std: migrate getcwd to Io' (#31047) from getcwd into master

Add `f16`, `f80` and `f128` support for `atan`

std.Build: Fix wrong error enum

Threaded.sleepPosix: fix libc error handling

std.os.windows: delete unused APIs

add behavior test for i96 operations

behavior: add coverage for extern struct field overalignment

Merge pull request 'std: finish moving os.windows.ReadLink logic to Io.Threaded' (#31044) from windows-OpenFile into master

Add `f16`, `f80` and `f128` support for `acos` and `asin` (#30997)

std.meta: delete declList

Make functions on EnumMap always take a pointer to avoid copies of big EnumMaps

Fix std.process.run leaking memory if child.wait returned an error

musl: update some hexagon headers from the quic fork

Fix BootServices.locateHandleLen() (#30877)

windows_resources standalone test: Load a resource and check its data

Disentangle from `error.CurrentWorkingDirectoryUnlinked`

Merge pull request 'libc: use common implementations for linux syscalls' (#30993) from GasInfinity/zig:libc-musl-syscalls into master

zig fmt

Merge branch 'prefer-io-futex'

std.debug: use debug_io for the futex in waitForOtherThreadToFinishPanicking

std.mem.readVarInt: Fix type name in doc comment (#31007)

std.Build.Step.Compile: pass target by pointer to isLibC*LibName

musl: zero fp/lr registers in _start() and clone() on hexagon

std.heap.DebugAllocator: fix account `total_requested_bytes` on `resizeSmall`

std.Io.Reader.takeStruct: dont assert buffer capacity is sizeOf(T)

langref: Add table of largest integer types that can coerce to floats

Revert "Io.Threaded: remove WSA_FLAG_OVERLAPPED from socket call"

Merge pull request 'compiler: use Io.MemoryMap' (#30961) from use-mmap into master

Merge pull request 'glibc 2.43' (#31005) from alexrp/zig:glibc-2.43 into master

Fix std.uefi.protocol.DevicePath.next() and add utility function isEnd() (#30887)

std: impl process.totalSystemMemory for netbsd

crypto.ff: allow seamless chaining regardless of representation (#30913)

ci: temporarily disable x86_64-netbsd while I investigate failures