error handling in BasicFile::SetFileSize

1 files changed, 28 insertions, 6 deletions

diff --git a/zenstore/basicfile.cpp b/zenstore/basicfile.cpp
index 8b3ee2844..eb93638f2 100644
--- a/zenstore/basicfile.cpp
+++ b/zenstore/basicfile.cpp
@@ -324,16 +324,38 @@ BasicFile::SetFileSize(uint64_t FileSize)
 #if ZEN_PLATFORM_WINDOWS
 	LARGE_INTEGER liFileSize;
 	liFileSize.QuadPart = FileSize;
-	::SetFilePointerEx(m_FileHandle, liFileSize, 0, FILE_BEGIN);
-	::SetEndOfFile(m_FileHandle);
+	BOOL OK				= ::SetFilePointerEx(m_FileHandle, liFileSize, 0, FILE_BEGIN);
+	if (OK == FALSE)
+	{
+		ThrowLastError(fmt::format("Failed to set file pointer to {} for file {}", FileSize, PathFromHandle(m_FileHandle)));
+	}
+	OK = ::SetEndOfFile(m_FileHandle);
+	if (OK == FALSE)
+	{
+		ThrowLastError(fmt::format("Failed to set end of file to {} for file {}", FileSize, PathFromHandle(m_FileHandle)));
+	}
 #elif ZEN_PLATFORM_MAC
 	int Fd = int(intptr_t(m_FileHandle));
-	ftruncate(Fd, (off_t)FileSize);
-	posix_fallocate(Fd, 0, (off_t)FileSize);
+	if (ftruncate(Fd, (off_t)FileSize) < 0)
+	{
+		ThrowLastError(fmt::format("Failed to set truncate file to {} for file {}", FileSize, PathFromHandle(m_FileHandle)));
+	}
+	std::error_code Ec = posix_fallocate(Fd, 0, (off_t)FileSize);
+	if (Ec)
+	{
+		ThrowSystemError(Ec, fmt::format("Failed to allocate space of {} for file {}", FileSize, PathFromHandle(m_FileHandle)))
+	}
 #else
 	int Fd = int(intptr_t(m_FileHandle));
-	ftruncate64(Fd, (off64_t)FileSize);
-	posix_fallocate64(Fd, 0, (off64_t)FileSize);
+	if (ftruncate64(Fd, (off64_t)FileSize) < 0)
+	{
+		ThrowLastError(fmt::format("Failed to set truncate file to {} for file {}", FileSize, PathFromHandle(m_FileHandle)));
+	}
+	std::error_code Ec = posix_fallocate64(Fd, 0, (off64_t)FileSize);
+	if (Ec)
+	{
+		ThrowSystemError(Ec, fmt::format("Failed to allocate space of {} for file {}", FileSize, PathFromHandle(m_FileHandle)))
+	}
 #endif
 }