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fixes start logic for checking whether IO/POLL exist
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fix std lib compilation errors caused by introducing std.Io
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There is no straightforward way for the Zig team to access the Solaris system
headers; to do this, one has to create an Oracle account, accept their EULA to
download the installer ISO, and finally install it on a machine or VM. We do not
have to jump through hoops like this for any other OS that we support, and no
one on the team has expressed willingness to do it.
As a result, we cannot audit any Solaris contributions to std.c or other
similarly sensitive parts of the standard library. The best we would be able to
do is assume that Solaris and illumos are 100% compatible with no way to verify
that assumption. But at that point, the solaris and illumos OS tags would be
functionally identical anyway.
For Solaris especially, any contributions that involve APIs introduced after the
OS was made closed-source would also be inherently more risky than equivalent
contributions for other proprietary OSs due to the case of Google LLC v. Oracle
America, Inc., wherein Oracle clearly demonstrated its willingness to pursue
legal action against entities that merely copy API declarations.
Finally, Oracle laid off most of the Solaris team in 2017; the OS has been in
maintenance mode since, presumably to be retired completely sometime in the 2030s.
For these reasons, this commit removes all Oracle Solaris support.
Anyone who still wishes to use Zig on Solaris can try their luck by simply using
illumos instead of solaris in target triples - chances are it'll work. But there
will be no effort from the Zig team to support this use case; we recommend that
people move to illumos instead.
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and delete deprecated alias std.io
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added adapter to AnyWriter and GenericWriter to help bridge the gap
between old and new API
make std.testing.expectFmt work at compile-time
std.fmt no longer has a dependency on std.unicode. Formatted printing
was never properly unicode-aware. Now it no longer pretends to be.
Breakage/deprecations:
* std.fs.File.reader -> std.fs.File.deprecatedReader
* std.fs.File.writer -> std.fs.File.deprecatedWriter
* std.io.GenericReader -> std.io.Reader
* std.io.GenericWriter -> std.io.Writer
* std.io.AnyReader -> std.io.Reader
* std.io.AnyWriter -> std.io.Writer
* std.fmt.format -> std.fmt.deprecatedFormat
* std.fmt.fmtSliceEscapeLower -> std.ascii.hexEscape
* std.fmt.fmtSliceEscapeUpper -> std.ascii.hexEscape
* std.fmt.fmtSliceHexLower -> {x}
* std.fmt.fmtSliceHexUpper -> {X}
* std.fmt.fmtIntSizeDec -> {B}
* std.fmt.fmtIntSizeBin -> {Bi}
* std.fmt.fmtDuration -> {D}
* std.fmt.fmtDurationSigned -> {D}
* {} -> {f} when there is a format method
* format method signature
- anytype -> *std.io.Writer
- inferred error set -> error{WriteFailed}
- options -> (deleted)
* std.fmt.Formatted
- now takes context type explicitly
- no fmt string
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preparing to rearrange std.io namespace into an interface
how to upgrade:
std.io.getStdIn() -> std.fs.File.stdin()
std.io.getStdOut() -> std.fs.File.stdout()
std.io.getStdErr() -> std.fs.File.stderr()
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* "Flush" nodes ("LLVM Emit Object", "ELF Flush") appear under "Linking"
* "Code Generation" disappears when all analysis and codegen is done
* We only show one node under "Semantic Analysis" to accurately convey
that analysis isn't happening in parallel, but rather that we're
pausing one task to do another
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There were several bugs with the synchronization here; most notably an
ABA problem which was causing #21663. I fixed that and some other
issues, and took the opportunity to get rid of the `.seq_cst` orderings
from this file. I'm at least relatively sure my new orderings are correct.
Co-authored-by: achan1989 <achan1989@gmail.com>
Resolves: #21663
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By returning an initialized sigset (instead of taking the set as an output
parameter), these functions can be used to directly initialize the `mask`
parameter of a `Sigaction` instance.
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When linking a libc, Zig should defer to the C library for sigset
operations. The pre-filled constants signal sets (empty_sigset,
filled_sigset) are not compatible with C library initialization, so remove
them and use the runtime `sigemptyset` and `sigfillset` methods to
initialize any sigset.
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This was done by regex substitution with `sed`. I then manually went
over the entire diff and fixed any incorrect changes.
This diff also changes a lot of `callconv(.C)` to `callconv(.c)`, since
my regex happened to also trigger here. I opted to leave these changes
in, since they *are* a correct migration, even if they're not the one I
was trying to do!
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In end(), the freelist pointer is owned so the bare store would be ok.
However, there is a load in start() that can happen at the same time, if
another start() and end() pair grabs that same index.
I don't think this fixes #21663 actually because even if the data race
corrupts the value for `next`, the cmpxchg protects the value from being
stored there.
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The compiler actually doesn't need any functional changes for this: Sema
does reification based on the tag indices of `std.builtin.Type` already!
So, no zig1.wasm update is necessary.
This change is necessary to disallow name clashes between fields and
decls on a type, which is a prerequisite of #9938.
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error.
The set of signals that cannot have their action changed is documented in POSIX,
and any additional, non-standard signals are documented by the specific OS. I
see no valid reason why EINVAL should be considered an unpredictable error here.
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It is now composed of these main sections:
* Declarations that are shared among all operating systems.
* Declarations that have the same name, but different type signatures
depending on the operating system. Often multiple operating systems
share the same type signatures however.
* Declarations that are specific to a single operating system.
- These are imported one per line so you can see where they come from,
protected by a comptime block to prevent accessing the wrong one.
Closes #19352 by changing the convention to making types `void` and
functions `{}`, so that it becomes possible to update `@hasDecl` sites
to use `@TypeOf(f) != void` or `T != void`. Happily, this ended up
removing some duplicate logic and update some bitrotted feature
detection checks.
A handful of types have been modified to gain namespacing and type
safety. This is a breaking change.
Oh, and the last usage of `usingnamespace` site is eliminated.
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This makes advanced use cases possible such as a long-lived child
process whose progress node gets re-attached to a different parent.
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Let's at least do aligned usize loads/stores where possible.
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This removes the undefined behavior, but not the actual races.
Closes #20477
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(There are no supported backends.)
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A node may be freed during the execution of this loop, causing there to
be a parent reference to a nonexistent node. Without this assignment,
this would lead to the map entry containing stale data. By assigning
none, the child node with the bad parent pointer will be harmlessly
omitted from the tree.
Closes #20262
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On Windows, the console mode flag `ENABLE_VIRTUAL_TERMINAL_PROCESSING` determines whether or not ANSI escape codes are parsed/acted on. On the newer Windows Terminal, this flag is set by default, but on the older Windows Console, it is not set by default, but *can* be enabled (since Windows 10 RS1 from June 2016).
The new `File.getOrEnableAnsiEscapeSupport` function will get the current status of ANSI escape code support, but will also attempt to enable `ENABLE_VIRTUAL_TERMINAL_PROCESSING` on Windows if necessary which will provide better/more consistent results for things like `std.Progress` and `std.io.tty`.
This type of change was not done previously due to a mistaken assumption (on my part) that the console mode would persist after the run of a program. However, it turns out that the console mode is always reset to the default for each program run in a console session.
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closes #20161
problem introduced in e09963d8544c19812db20e520f09f6e5d9a57d64
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The \r\n is necessary to get the progress tree to work properly in the old console when ENABLE_VIRTUAL_TERMINAL_PROCESSING and DISABLE_NEWLINE_AUTO_RETURN are set.
The line_upper_bound_len fix addresses part of #20161
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This changes the terminal display to keep the cursor at the top left of
the progress display, so that unlocked stderr writes, perhaps by child
processes, don't get eaten by the clear.
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Reduce node_storage_buffer_len from 200 to 83. This makes messages over
the pipe fit in a single packet (4096 bytes). There is now a comptime
assert to ensure this. In practice this is plenty of storage because
typical terminal heights are significantly less than 83 rows.
Handling of split reads is fixed; instead of using a global
`remaining_read_trash_bytes`, the value is stored in the "saved
metadata" for the IPC node.
Saved metadata is split into two arrays so that the "find" operation can
quickly scan over fds for a match, looking at 332 bytes maximum, and
only reading the memory for the other data upon match. More typical
number of bytes read for this operation would be 0 (no child processes),
4 (1 child process), or 64 (16 child processes reporting progress).
Removed an align(4) that was leftover from an older design.
This also includes part of Jacob Young's not-yet-landed patch that
implements `writevNonblock`.
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3a3d2187f986066859cfb793fb7ee1cae4dfea08 unintentionally broke some of the Windows console API implementation.
- The 'marker' character was no longer being written at all
- The ANSI escape codes for syncing were being written unconditionally
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* Merge a bunch of related state together into TerminalMode. Windows
sometimes follows the same path as posix via ansi_escape_codes,
sometimes not.
* Use a different thread entry point for Windows API but share the same
entry point on Windows when the terminal is in ansi_escape_codes mode.
* Only clear the terminal when the stderr lock is held.
* Don't try to clear the terminal when nothing has been written yet.
* Don't try to clear the terminal in IPC mode.
* Fix size detection logic bug under error conditions.
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supported
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Generates better machine code, particularly on ARM
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The update thread was sometimes reading the special state and then
incorrectly getting 0 for the file descriptor, making it hang since it
tried to read from stdin.
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We cannot rely on host endianness because the parent or child process
may be executing inside QEMU.
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Slightly slower refresh rate. It's still updating very quickly.
Lower the initial delay so that CLI applications feel more responsive.
Even though the application is doing work for the full 500ms until
something is displayed on the screen, it feels nicer to get the progress
earlier.
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when the root progress node has a zero length name, the sub-tree is
flattened one layer, reducing visual noise, as well as bytes written to
the terminal.
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Split newline_count into written_newline_count and
accumulated_newline_count. This handle the case when the tryLock() fails
to obtain the lock, because in such case there would not be any newlines
written to the terminal but the system would incorrectly think there
were. Now, written_newline_count is only adjusted when the write() call
succeeds.
Furthermore, write() call failure is handled by exiting the update
thread.
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Don't truncate trailing newline. This better handles stray writes to
stderr that are not std.Progress-aware, such as from non-zig child
processes.
This commit also makes `Node.start` and `Node.end` bail out early with a
comptime branch when it is known the target will not be spawning an
update thread.
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when the errors could possibly be spammed many times
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