Use new FileHandle methods that throw errors instead of exceptions

This commit is contained in:
Wojciech Nagrodzki 2019-11-04 19:21:53 +01:00
parent 3bc845ee28
commit 04ab08f294
Signed by: wnagrodzki
GPG key ID: E9D0EB0302264569
4 changed files with 48 additions and 17 deletions

View file

@ -370,7 +370,7 @@
GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE; GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
GCC_WARN_UNUSED_FUNCTION = YES; GCC_WARN_UNUSED_FUNCTION = YES;
GCC_WARN_UNUSED_VARIABLE = YES; GCC_WARN_UNUSED_VARIABLE = YES;
IPHONEOS_DEPLOYMENT_TARGET = 13.0; IPHONEOS_DEPLOYMENT_TARGET = 8.0;
MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE; MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
MTL_FAST_MATH = YES; MTL_FAST_MATH = YES;
ONLY_ACTIVE_ARCH = YES; ONLY_ACTIVE_ARCH = YES;
@ -425,7 +425,7 @@
GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE; GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
GCC_WARN_UNUSED_FUNCTION = YES; GCC_WARN_UNUSED_FUNCTION = YES;
GCC_WARN_UNUSED_VARIABLE = YES; GCC_WARN_UNUSED_VARIABLE = YES;
IPHONEOS_DEPLOYMENT_TARGET = 13.0; IPHONEOS_DEPLOYMENT_TARGET = 8.0;
MTL_ENABLE_DEBUG_INFO = NO; MTL_ENABLE_DEBUG_INFO = NO;
MTL_FAST_MATH = YES; MTL_FAST_MATH = YES;
SDKROOT = iphoneos; SDKROOT = iphoneos;

View file

@ -46,6 +46,7 @@ protocol LogrotateFactory {
} }
/// Logger that writes messages into the file at specified URL with log rotation support. /// Logger that writes messages into the file at specified URL with log rotation support.
@available(OSX 10.15, iOS 13.0, watchOS 6.0, tvOS 13.0, *)
public final class DiskLogger: Logger { public final class DiskLogger: Logger {
private let fileURL: URL private let fileURL: URL
@ -97,7 +98,7 @@ public final class DiskLogger: Logger {
try self.writeBuffer() try self.writeBuffer()
} }
catch is SizeLimitedFileQuotaReached { catch is SizeLimitedFileQuotaReached {
self.closeSizeLimitedFile() try self.closeSizeLimitedFile()
try self.rotateLogFiles() try self.rotateLogFiles()
try self.openSizeLimitedFile() try self.openSizeLimitedFile()
try self.writeBuffer() try self.writeBuffer()
@ -124,8 +125,8 @@ public final class DiskLogger: Logger {
buffer.removeAll() buffer.removeAll()
} }
private func closeSizeLimitedFile() { private func closeSizeLimitedFile() throws {
self.sizeLimitedFile.synchronizeAndCloseFile() try self.sizeLimitedFile.synchronizeAndCloseFile()
self.sizeLimitedFile = nil self.sizeLimitedFile = nil
} }

View file

@ -9,15 +9,45 @@
import Foundation import Foundation
protocol OSFileHandle { protocol OSFileHandle {
func seekToEndOfFile() -> UInt64 func osSeekToEndOfFile() throws -> UInt64
func swift_write(_ data: Data) throws func osWrite(_ data: Data) throws
func synchronizeFile() func osSynchronizeFile() throws
func closeFile() func osCloseFile() throws
} }
extension FileHandle: OSFileHandle { extension FileHandle: OSFileHandle {
func swift_write(_ data: Data) throws { func osSeekToEndOfFile() throws -> UInt64 {
if #available(iOS 13.0, *) {
var offsetInFile: UInt64 = 0
try __seek(toEndReturningOffset:&offsetInFile)
return offsetInFile
} else {
fatalError()
}
}
func osWrite(_ data: Data) throws {
if #available(iOS 13.0, *) {
try __write(data, error: ()) try __write(data, error: ())
} else {
fatalError()
}
}
func osSynchronizeFile() throws {
if #available(iOS 13.0, *) {
try synchronize()
} else {
fatalError()
}
}
func osCloseFile() throws {
if #available(iOS 13.0, *) {
try close()
} else {
fatalError()
}
} }
} }

View file

@ -42,7 +42,7 @@ protocol SizeLimitedFile {
func write(_ data: Data) throws func write(_ data: Data) throws
/// Writes all in-memory data to permanent storage and closes the file. /// Writes all in-memory data to permanent storage and closes the file.
func synchronizeAndCloseFile() func synchronizeAndCloseFile() throws
} }
/// Allows writing to a file while respecting allowed size limit. /// Allows writing to a file while respecting allowed size limit.
@ -61,7 +61,7 @@ final class SizeLimitedFileImpl {
init(fileURL: URL, fileSizeLimit: UInt64, fileFactory: FileHandleFactory) throws { init(fileURL: URL, fileSizeLimit: UInt64, fileFactory: FileHandleFactory) throws {
file = try fileFactory.makeInstance(forWritingTo: fileURL) file = try fileFactory.makeInstance(forWritingTo: fileURL)
self.sizeLimit = fileSizeLimit self.sizeLimit = fileSizeLimit
currentSize = file.seekToEndOfFile() currentSize = try file.osSeekToEndOfFile()
} }
} }
@ -72,12 +72,12 @@ extension SizeLimitedFileImpl: SizeLimitedFile {
guard currentSize + dataSize <= sizeLimit else { guard currentSize + dataSize <= sizeLimit else {
throw SizeLimitedFileQuotaReached() throw SizeLimitedFileQuotaReached()
} }
try file.swift_write(data) try file.osWrite(data)
currentSize += dataSize currentSize += dataSize
} }
func synchronizeAndCloseFile() { func synchronizeAndCloseFile() throws {
file.synchronizeFile() try file.osSynchronizeFile()
file.closeFile() try file.osCloseFile()
} }
} }