34 lines
830 B
C++
34 lines
830 B
C++
/***
|
|
Copyright (C) 2022 J Reece Wilson (a/k/a "Reece"). All rights reserved.
|
|
|
|
File: FileAdvisory.Unix.cpp
|
|
Date: 2022-1-29
|
|
Author: Reece
|
|
***/
|
|
#include <Source/RuntimeInternal.hpp>
|
|
#include "FS.hpp"
|
|
#include "FileAdvisory.Unix.hpp"
|
|
#include <sys/file.h>
|
|
|
|
namespace Aurora::IO::FS
|
|
{
|
|
bool ApplyDumbAdvisoryLock(int fd, EFileAdvisoryLockLevel level)
|
|
{
|
|
int operation = LOCK_NB;
|
|
|
|
switch (level)
|
|
{
|
|
case EFileAdvisoryLockLevel::eEnumCount:
|
|
case EFileAdvisoryLockLevel::eNoSafety:
|
|
return true;
|
|
case EFileAdvisoryLockLevel::eBlockWrite:
|
|
operation |= LOCK_SH;
|
|
break;
|
|
case EFileAdvisoryLockLevel::eBlockReadWrite:
|
|
operation |= LOCK_EX;
|
|
break;
|
|
}
|
|
|
|
return flock(fd, operation) == 0;
|
|
}
|
|
} |