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LibC: Implement __freadahead

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Tim Schumacher 2021-11-07 17:19:16 +01:00 • committed by Andreas Kling
parent 9b543ddb16
commit 89ed0649f7
2 changed files with 12 additions and 0 deletions
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11
Userland/Libraries/LibC/stdio.cpp
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@ -1328,6 +1328,17 @@ void __fpurge(FILE* stream)
stream->purge(); stream->purge();
} }
size_t __freadahead(FILE* stream)
{
VERIFY(stream);
ScopedFileLock lock(stream);
size_t available_size;
stream->readptr(available_size);
return available_size;
}
char const* __freadptr(FILE* stream, size_t* sizep) char const* __freadptr(FILE* stream, size_t* sizep)
{ {
VERIFY(stream); VERIFY(stream);

1
Userland/Libraries/LibC/stdio_ext.h
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@ -15,6 +15,7 @@ int __freading(FILE*);
int __fwriting(FILE*); int __fwriting(FILE*);
void __fpurge(FILE*); void __fpurge(FILE*);
size_t __freadahead(FILE*);
char const* __freadptr(FILE*, size_t*); char const* __freadptr(FILE*, size_t*);
__END_DECLS __END_DECLS