* Add general purpose `setFileSize` (unexported for now). Use to simplify
`memfiles.open` as well as make robust (via hard allocation, not merely
`ftruncate` address space allocation) on systems with `posix_fallocate`.
As part of this, fix a bad `closeHandle` return check bug on Windows and
add `MemFile.resize` for Windows now that setFileSize makes that easier.
* Adapt existing test to exercise newly portable `MemFile.resize`.
* Since Apple has never provided `posix_fallocate`, provide a fallback.
This is presently written in terms of `ftruncate`, but it can be
improved to use `F_PREALLOCATE` instead, as mentioned in a comment.
(cherry picked from commit c91ef1a09f)
* This adds `parseutils.parseSize`, an inverse to `strutils.formatSize`
which has existed since 2017.
It is useful for parsing the compiler's own output logs (like SuccessX)
or many other scenarios where "human readable" units have been chosen.
The doc comment and tests explain accepted syntax in detail.
Big units lead to small numbers, often with a fractional part, but we
parse into an `int64` since that is what `formatSize` stringifies and
this is an inverse over partial function slots. Although metric
prefixes z & y for zettabyte & yottabyte are accepted, these will
saturate the result at `int64.high` unless the qualified number is a
small fraction. This should not be much of a problem until such sizes
are common (at which point another overload with the parse result
either `float64` or `int128` could be added).
Tests avoids `test()` because of a weakly related static: test() failure
as mentioned in https://github.com/nim-lang/Nim/pull/21325. This is a
more elemental VM failure. As such, it needs its own failure exhibition
issue that is a smaller test case. (I am working on that, but unless
there is a burning need to `parseSize` at compile-time before run-time
it need not hold up this PR.)
* This worked with `int` but fails with `int64`. Try for green tests.
* Lift 2-result matching into a `checkParseSize` template and format as a
table of input & 2 expected outputs which seems nicer and to address
https://github.com/nim-lang/Nim/pull/21349#pullrequestreview-1294407679
* Fix (probably) the i386 trouble by using `int64` consistently.
* Improve documentation by mentioning saturation.
* Improve documentation with `runnableExamples` and a little more detail in
the main doc comment based on excellent code review by @juancarlospaco:
https://github.com/nim-lang/Nim/pull/21349#pullrequestreview-1294564155
* Address some more @juancarlospaco code review concerns.
* Remove a stray space.
* Mention milli-bytes in docs to maybe help clarify why wild conventions
are so prone to going case-insensitive-metric.
* Add some parens.
(cherry picked from commit 1d06c2b6cf)
* fix =#13790 ptr char (+friends) should not implicitly convert to cstring
* Apply suggestions from code review
* first round; compiles on windows
* nimPreviewSlimSystem
* conversion is unsafe, cast needed
* fixes more tests
* fixes asyncnet
* another try another error
* last one
* true
* one more
* why bugs didn't show at once
* add `nimPreviewCstringConversion` switch
* typo
* fixes ptr to cstring warnings[backport]
* add fixes
Co-authored-by: xflywind <43030857+xflywind@users.noreply.github.com>
(cherry picked from commit 06cd15663d)
* fix vcc rawsetjmp
* changing `_longjmp()` to `longjmp()` and
`_setjmp()` to `setjmp()`
* fix
* fix setjmp to clangcl on Windows
* fix genTrySetjmp() to clangcl on Windows
(cherry picked from commit d2d8f1342b)
* fixes#19973; switch to poll on posix
* it is fd
* exclude lwip
* fixes lwip
* rename select to timeoutRead
* refactor into timeoutRead/timeoutWrite
* refactor common parts
Co-authored-by: xflywind <43030857+xflywind@users.noreply.github.com>
(cherry picked from commit 2b8f0a7971)
* fixes#20153; do not escape `_` for mysql
* add a test
* Update db_mysql.nim
* Update tdb_mysql.nim
Co-authored-by: Clay Sweetser <Varriount@users.noreply.github.com>
(cherry picked from commit 3bd935f331)
Don't require blank line before Markdown code
Fixes bug reported in https://github.com/nim-lang/Nim/pull/20189
affecting nimforum.
(manually backported version to 1.6 from devel)
emscripten reports infinity for every getrlimit() requests, which does
not work when requesting the max number of file descriptors (prlimit64
syscall). This patch provides a default of 1024 which is common on Linux.
This is used in particular in ioselectors_poll.nim and te invalid value
makes it crash.
* Windows: enable nimRawSetjmp by default
See #19197. The default setjmp can randomly segfault on windows
* Attempt to disable the flag for bootstraping
* Disable styleCheck for c_setjmp
(cherry picked from commit 251bdc1d5a)
why aren't these not being caught by style check options?
--styleCheck:usages finds it.
Co-authored-by: flywind <xzsflywind@gmail.com>
(cherry picked from commit cb6ce80cb8)
