Files
c3c/lib/std/io/os/file_nolibc.c3
Zack Puhl 8bd963ecaf Allow Async w/ Subprocess for POSIX Systems (#2953)
* add native_fflush libc passthru

* add `pipe2` which combines `pipe` and `fcntl` - see docs

* POSIX subprocess: incorporate async reader capability and and fflush for writer

* use the real-name O_NONBLOCK since it's available

* typo

* ok... remove `pipe2` and do this with an existing method......

* Update releasenotes.md

---------

Co-authored-by: Christoffer Lerno <christoffer@aegik.com>
2026-02-22 01:59:44 +01:00

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module std::io::os @if(env::NO_LIBC);
import libc;
alias FopenFn = fn void*?(String, String);
alias FreopenFn = fn void*?(void*, String, String);
alias FcloseFn = fn void?(void*);
alias FseekFn = fn void?(void*, long, SeekOrigin);
alias FtellFn = fn long?(void*);
alias FwriteFn = fn usz?(void*, char[] buffer);
alias FreadFn = fn usz?(void*, char[] buffer);
alias FflushFn = fn void?(void*);
alias RemoveFn = fn void?(String);
alias FputcFn = fn void?(int, void*);
alias SetModifiedTimeFn = fn void?(String, libc::Time_t);
FopenFn native_fopen_fn @weak @if(!$defined(native_fopen_fn));
FcloseFn native_fclose_fn @weak @if(!$defined(native_fclose_fn));
FreopenFn native_freopen_fn @weak @if(!$defined(native_freopen_fn));
FseekFn native_fseek_fn @weak @if(!$defined(native_fseek_fn));
FtellFn native_ftell_fn @weak @if(!$defined(native_ftell_fn));
FwriteFn native_fwrite_fn @weak @if(!$defined(native_fwrite_fn));
FreadFn native_fread_fn @weak @if(!$defined(native_fread_fn));
FflushFn native_fflush_fn @weak @if(!$defined(native_fflush_fn));
RemoveFn native_remove_fn @weak @if(!$defined(native_remove_fn));
FputcFn native_fputc_fn @weak @if(!$defined(native_fputc_fn));
SetModifiedTimeFn native_set_modified_time_fn @weak @if(!$defined(native_set_modified_time_fn));
<*
@require mode.len > 0
@require filename.len > 0
*>
fn void*? native_fopen(String filename, String mode) @inline
{
if (native_fopen_fn) return native_fopen_fn(filename, mode);
return io::UNSUPPORTED_OPERATION~;
}
<*
Delete a file.
@require filename.len > 0
*>
fn void? native_remove(String filename) @inline
{
if (native_remove_fn) return native_remove_fn(filename);
return io::UNSUPPORTED_OPERATION~;
}
<*
@require mode.len > 0
@require filename.len > 0
*>
fn void*? native_freopen(void* file, String filename, String mode) @inline
{
if (native_freopen_fn) return native_freopen_fn(file, filename, mode);
return io::UNSUPPORTED_OPERATION~;
}
fn void? native_fseek(void* file, long offset, SeekOrigin whence) @inline
{
if (native_fseek_fn) return native_fseek_fn(file, offset, whence);
return io::UNSUPPORTED_OPERATION~;
}
fn ulong? native_ftell(CFile file) @inline
{
if (native_ftell_fn) return native_ftell_fn(file);
return io::UNSUPPORTED_OPERATION~;
}
fn usz? native_fwrite(CFile file, char[] buffer) @inline
{
if (native_fwrite_fn) return native_fwrite_fn(file, buffer);
return io::UNSUPPORTED_OPERATION~;
}
fn usz? native_fread(CFile file, char[] buffer) @inline
{
if (native_fread_fn) return native_fread_fn(file, buffer);
return io::UNSUPPORTED_OPERATION~;
}
fn void? native_fflush(CFile file) @inline @maydiscard
{
if (native_fflush_fn) return native_fflush_fn(file);
return io::UNSUPPORTED_OPERATION~;
}
fn void? native_fputc(CInt c, CFile stream) @inline
{
if (native_fputc_fn) return native_fputc_fn(c, stream);
return io::UNSUPPORTED_OPERATION~;
}
fn void? native_set_modified_time(String filename, libc::Time_t time) @inline
{
if (native_set_modified_time_fn) return native_set_modified_time_fn(filename, time);
return io::UNSUPPORTED_OPERATION~;
}