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Use new FileHandle methods that throw errors instead of exceptions

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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
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4
Logger.xcodeproj/project.pbxproj
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@ -370,7 +370,7 @@
GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
GCC_WARN_UNUSED_FUNCTION = YES;
GCC_WARN_UNUSED_VARIABLE = YES;
IPHONEOS_DEPLOYMENT_TARGET = 13.0;
IPHONEOS_DEPLOYMENT_TARGET = 8.0;
MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
MTL_FAST_MATH = YES;
ONLY_ACTIVE_ARCH = YES;
@ -425,7 +425,7 @@
GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
GCC_WARN_UNUSED_FUNCTION = YES;
GCC_WARN_UNUSED_VARIABLE = YES;
IPHONEOS_DEPLOYMENT_TARGET = 13.0;
IPHONEOS_DEPLOYMENT_TARGET = 8.0;
MTL_ENABLE_DEBUG_INFO = NO;
MTL_FAST_MATH = YES;
SDKROOT = iphoneos;

7
Logger/Loggers/DiskLogger/DiskLogger.swift
View file

@ -46,6 +46,7 @@ protocol LogrotateFactory {
}
/// 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 {
private let fileURL: URL
@ -97,7 +98,7 @@ public final class DiskLogger: Logger {
try self.writeBuffer()
}
catch is SizeLimitedFileQuotaReached {
self.closeSizeLimitedFile()
try self.closeSizeLimitedFile()
try self.rotateLogFiles()
try self.openSizeLimitedFile()
try self.writeBuffer()
@ -124,8 +125,8 @@ public final class DiskLogger: Logger {
buffer.removeAll()
}
private func closeSizeLimitedFile() {
self.sizeLimitedFile.synchronizeAndCloseFile()
private func closeSizeLimitedFile() throws {
try self.sizeLimitedFile.synchronizeAndCloseFile()
self.sizeLimitedFile = nil
}

42
Logger/Loggers/DiskLogger/OSFileHandle.swift
View file

@ -9,15 +9,45 @@
import Foundation
protocol OSFileHandle {
func seekToEndOfFile() -> UInt64
func swift_write(_ data: Data) throws
func synchronizeFile()
func closeFile()
func osSeekToEndOfFile() throws -> UInt64
func osWrite(_ data: Data) throws
func osSynchronizeFile() throws
func osCloseFile() throws
}
extension FileHandle: OSFileHandle {
func swift_write(_ data: Data) throws {
try __write(data, error: ())
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: ())
} 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()
}
}
}

12
Logger/Loggers/DiskLogger/SizeLimitedFile.swift
View file

@ -42,7 +42,7 @@ protocol SizeLimitedFile {
func write(_ data: Data) throws
/// 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.
@ -61,7 +61,7 @@ final class SizeLimitedFileImpl {
init(fileURL: URL, fileSizeLimit: UInt64, fileFactory: FileHandleFactory) throws {
file = try fileFactory.makeInstance(forWritingTo: fileURL)
self.sizeLimit = fileSizeLimit
currentSize = file.seekToEndOfFile()
currentSize = try file.osSeekToEndOfFile()
}
}
@ -72,12 +72,12 @@ extension SizeLimitedFileImpl: SizeLimitedFile {
guard currentSize + dataSize <= sizeLimit else {
throw SizeLimitedFileQuotaReached()
}
try file.swift_write(data)
try file.osWrite(data)
currentSize += dataSize
}
func synchronizeAndCloseFile() {
file.synchronizeFile()
file.closeFile()
func synchronizeAndCloseFile() throws {
try file.osSynchronizeFile()
try file.osCloseFile()
}
}