From 892da127d044b74dfa10c1558a973fcec3c89d6b Mon Sep 17 00:00:00 2001
From: Romain Chardiny <romain.chardiny@gmail.com>
Date: Wed, 27 Mar 2024 06:53:09 +0100
Subject: [PATCH] LibCore: Add wrapper for fsync()

---
 Userland/Libraries/LibCore/System.cpp | 7 +++++++
 Userland/Libraries/LibCore/System.h   | 1 +
 2 files changed, 8 insertions(+)

diff --git a/Userland/Libraries/LibCore/System.cpp b/Userland/Libraries/LibCore/System.cpp
index 9b7ee12bb4a..07ce89f39c3 100644
--- a/Userland/Libraries/LibCore/System.cpp
+++ b/Userland/Libraries/LibCore/System.cpp
@@ -598,6 +598,13 @@ ErrorOr<void> ftruncate(int fd, off_t length)
     return {};
 }
 
+ErrorOr<void> fsync(int fd)
+{
+    if (::fsync(fd) < 0)
+        return Error::from_syscall("fsync"sv, -errno);
+    return {};
+}
+
 ErrorOr<struct stat> stat(StringView path)
 {
     if (!path.characters_without_null_termination())
diff --git a/Userland/Libraries/LibCore/System.h b/Userland/Libraries/LibCore/System.h
index a57d1f8faf0..fb74bae9926 100644
--- a/Userland/Libraries/LibCore/System.h
+++ b/Userland/Libraries/LibCore/System.h
@@ -127,6 +127,7 @@ ErrorOr<int> open(StringView path, int options, mode_t mode = 0);
 ErrorOr<int> openat(int fd, StringView path, int options, mode_t mode = 0);
 ErrorOr<void> close(int fd);
 ErrorOr<void> ftruncate(int fd, off_t length);
+ErrorOr<void> fsync(int fd);
 ErrorOr<struct stat> stat(StringView path);
 ErrorOr<struct stat> lstat(StringView path);
 ErrorOr<ssize_t> read(int fd, Bytes buffer);