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Fixed possible crash

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Peter
2018-11-21 04:46:11 +03:00
parent ad9943d5b9
commit 654798e5fd
1 changed files with 7 additions and 3 deletions
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10
Postbox/MediaBox.swift
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@@ -497,9 +497,13 @@ public final class MediaBox {
let dataDisposable = fileContext.data(range: Int32(range.lowerBound) ..< Int32(range.upperBound), waitUntilAfterInitialFetch: false, next: { result in
if let data = try? Data(contentsOf: URL(fileURLWithPath: result.path), options: .mappedRead) {
if result.complete {
let resultData = data.subdata(in: result.offset ..< (result.offset + result.size))
subscriber.putNext(resultData)
subscriber.putCompletion()
if result.offset + result.size <= data.count {
let resultData = data.subdata(in: result.offset ..< (result.offset + result.size))
subscriber.putNext(resultData)
subscriber.putCompletion()
} else {
assertionFailure()
}
} else {
switch mode {
case .complete: