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Make queue optional

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This commit is contained in:
Peter 2019-07-03 03:04:28 +03:00
parent 3bbca0285c
commit 50778f24f9
1 changed files with 29 additions and 11 deletions
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40
submodules/Postbox/Postbox/ManagedFile.swift
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@ -20,12 +20,14 @@ private func wrappedRead(_ fd: Int32, _ data: UnsafeMutableRawPointer, _ count:
}
public final class ManagedFile {
private let queue: Queue
private let queue: Queue?
private let fd: Int32
private let mode: ManagedFileMode
public init?(queue: Queue, path: String, mode: ManagedFileMode) {
assert(queue.isCurrent())
public init?(queue: Queue?, path: String, mode: ManagedFileMode) {
if let queue = queue {
assert(queue.isCurrent())
}
self.queue = queue
self.mode = mode
let fileMode: Int32
@ -50,22 +52,30 @@ public final class ManagedFile {
}
deinit {
assert(self.queue.isCurrent())
if let queue = self.queue {
assert(queue.isCurrent())
}
close(self.fd)
}
public func write(_ data: UnsafeRawPointer, count: Int) -> Int {
assert(self.queue.isCurrent())
if let queue = self.queue {
assert(queue.isCurrent())
}
return wrappedWrite(self.fd, data, count)
}
public func read(_ data: UnsafeMutableRawPointer, _ count: Int) -> Int {
assert(self.queue.isCurrent())
if let queue = self.queue {
assert(queue.isCurrent())
}
return wrappedRead(self.fd, data, count)
}
public func readData(count: Int) -> Data {
assert(self.queue.isCurrent())
if let queue = self.queue {
assert(queue.isCurrent())
}
var result = Data(count: count)
result.withUnsafeMutableBytes { (bytes: UnsafeMutablePointer<Int8>) -> Void in
let readCount = self.read(bytes, count)
@ -75,17 +85,23 @@ public final class ManagedFile {
}
public func seek(position: Int64) {
assert(self.queue.isCurrent())
if let queue = self.queue {
assert(queue.isCurrent())
}
lseek(self.fd, position, SEEK_SET)
}
public func truncate(count: Int64) {
assert(self.queue.isCurrent())
if let queue = self.queue {
assert(queue.isCurrent())
}
ftruncate(self.fd, count)
}
public func getSize() -> Int? {
assert(self.queue.isCurrent())
if let queue = self.queue {
assert(queue.isCurrent())
}
var value = stat()
if fstat(self.fd, &value) == 0 {
return Int(value.st_size)
@ -95,7 +111,9 @@ public final class ManagedFile {
}
public func sync() {
assert(self.queue.isCurrent())
if let queue = self.queue {
assert(queue.isCurrent())
}
fsync(self.fd)
}
}