From c8ff2184bdbcded12785cc82585c6d5a80af42f9 Mon Sep 17 00:00:00 2001
From: Andreas Kling <kling@serenityos.org>
Date: Sun, 27 Nov 2022 19:46:03 +0100
Subject: [PATCH] LibCore: Add Core::System::posix_fallocate()

---
 Userland/Libraries/LibCore/System.cpp | 10 ++++++++++
 Userland/Libraries/LibCore/System.h   |  4 ++++
 2 files changed, 14 insertions(+)

diff --git a/Userland/Libraries/LibCore/System.cpp b/Userland/Libraries/LibCore/System.cpp
index 3c1ab3264b..3239f3e4d6 100644
--- a/Userland/Libraries/LibCore/System.cpp
+++ b/Userland/Libraries/LibCore/System.cpp
@@ -1400,4 +1400,14 @@ ErrorOr<String> readlink(StringView pathname)
 #endif
 }
 
+#ifdef AK_OS_SERENITY
+ErrorOr<void> posix_fallocate(int fd, off_t offset, off_t length)
+{
+    int rc = ::posix_fallocate(fd, offset, length);
+    if (rc != 0)
+        return Error::from_syscall("posix_fallocate"sv, -rc);
+    return {};
+}
+#endif
+
 }
diff --git a/Userland/Libraries/LibCore/System.h b/Userland/Libraries/LibCore/System.h
index e0f49b0982..5b1e9f4abb 100644
--- a/Userland/Libraries/LibCore/System.h
+++ b/Userland/Libraries/LibCore/System.h
@@ -206,4 +206,8 @@ ErrorOr<void> unlockpt(int fildes);
 ErrorOr<void> access(StringView pathname, int mode);
 ErrorOr<String> readlink(StringView pathname);
 
+#ifdef AK_OS_SERENITY
+ErrorOr<void> posix_fallocate(int fd, off_t offset, off_t length);
+#endif
+
 }