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Everywhere that can now use `splitScalar` should get a nice little performance boost.
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Everywhere that can now use `tokenizeScalar` should get a nice little performance boost.
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To improve understandability of its purpose.
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`GetPhysicallyInstalledSystemMemory` uses SMBios to grab the physical
memory size which can lead to unecessary allocation and inacurate
representation of the total memory. Using `System_Basic_Information`
help to retrieve the physical memory which is not reserved for the
kernel/tables. This aligns better with the linux side as `/proc/meminfo`
does the same thing.
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Notably the Darwin (XNU) kernel the maxrss field is number of bytes
and not kilobytes (kibibytes) like other platforms (e.g. Linux, BSD).
watchOS and tvOS are not supported because they do not have the ability
to spawn a child process. iOS is enabled but due to OS sandboxing it
should fail with a permission error.
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This unit test tested the command line arguments which were passed to
the test runner, which is not really something that unit tests are
supposed to observe.
The proper way to test command line argument parsing is with a
standalone test, where the set of command line arguments being tested
for are also being controlled by the test itself.
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Previously, this API had pid, to be used on POSIX systems, and handle,
to be used on Windows.
This commit unifies the API, defining an Id type that is either the pid
or the HANDLE depending on the target OS.
This commit also prepares for the future by allowing one to import via
`std.process.Child` which is the fully qualified namespace that I intend
to migrate to in the future.
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I was testing this with wazero, which defaults to not propagate any env
variables. This ensures we don't try to allocate zero length buffers
when there are no results from either function.
Signed-off-by: Adrian Cole <adrian@tetrate.io>
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Now that BufMap.BufMapHashMap is pub, we can just get Size directly
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applicable
# Conflicts:
# lib/std/build/RunStep.zig
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EnvMap provides the same API as the previously used BufMap (besides `putMove` and `getPtr`), so usage sites of `getEnvMap` can usually remain unchanged.
For non-Windows, EnvMap is a wrapper around BufMap. On Windows, it uses a new EnvMapWindows to handle some Windows-specific behavior:
- Lookups use Unicode-aware case insensitivity (but `get` cannot return an error because EnvMapWindows has an internal buffer to use for lookup conversions)
- Canonical names are returned when iterating the EnvMap
Fixes #10561, closes #4603
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In accordance with the requesting issue (#10750):
- `zig test` skips any tests that it cannot spawn, returning success
- `zig run` and `zig build` exit with failure, reporting the command the cannot be run
- `zig clang`, `zig ar`, etc. already punt directly to the appropriate clang/lld main(), even before this change
- Native `libc` Detection is not supported
Additionally, `exec()` and related Builder functions error at run-time, reporting the command that cannot be run
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I hit the "quotes in an RSP file" issue when trying to compile gRPC using
"zig cc". As a fun exercise, I decided to see if I could fix it myself.
I'm fully open to this code being flat-out rejected. Or I can take feedback
to fix it up.
This modifies (and renames) _ArgIteratorWindows_ in process.zig such that
it works with arbitrary strings (or the contents of an RSP file).
In main.zig, this new _ArgIteratorGeneral_ is used to address the "TODO"
listed in _ClangArgIterator_.
This change closes #4833.
**Pros:**
- It has the nice attribute of handling "RSP file" arguments in the same way it
handles "cmd_line" arguments.
- High Performance, minimal allocations
- Fixed bug in previous _ArgIteratorWindows_, where final trailing backslashes
in a command line were entirely dropped
- Added a test case for the above bug
- Harmonized the _ArgIteratorXxxx._initWithAllocator()_ and _next()_ interface
across Windows/Posix/Wasi (Moved Windows errors to _initWithAllocator()_
rather than _next()_)
- Likely perf benefit on Windows by doing _utf16leToUtf8AllocZ()_ only once
for the entire cmd_line
**Cons:**
- Breaking Change in std library on Windows: Call
_ArgIterator.initWithAllocator()_ instead of _ArgIterator.init()_
- PhaseMage is new with contributions to Zig, might need a lot of hand-holding
- PhaseMage is a Windows person, non-Windows stuff will need to be double-checked
**Testing Done:**
- Wrote a few new test cases in process.zig
- zig.exe build test -Dskip-release (no new failures seen)
- zig cc now builds gRPC without error
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The buffer `buf` contains N (= `slice_sizes.len`) slices followed by the
N null-terminated arguments. The N null-terminated arguments are stored
in the `contents` array list. Thus, `buf` size should be:
@sizeOf([]u8) * slice_sizes.len + contents_slice.len
Instead of:
@sizeOf([]u8) * slice_sizes.len + contents_slice.len + slice_sizes.len
This bug was found thanks to the gpa allocator which checks if freed
size matches allocated sizes for large allocations.
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Changes the return type of `ArgIterator.next()` from
`?(NextError![:0]u8)` to `NextError!?[:0]u8`.
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See #3811
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closes #9388
closes #9321
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We already have a LICENSE file that covers the Zig Standard Library. We
no longer need to remind everyone that the license is MIT in every single
file.
Previously this was introduced to clarify the situation for a fork of
Zig that made Zig's LICENSE file harder to find, and replaced it with
their own license that required annual payments to their company.
However that fork now appears to be dead. So there is no need to
reinforce the copyright notice in every single file.
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The primary purpose of this change is to eliminate one usage of
`usingnamespace` in the standard library - specifically the usage for
errno values in `std.os.linux`.
This is accomplished by truncating the `E` prefix from error values, and
making errno a proper enum.
A similar strategy can be used to eliminate some other `usingnamespace`
sites in the std lib.
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Signed-off-by: Takeshi Yoneda <takeshi@tetrate.io>
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