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aec43d811a
The current implementation does not read() from each Task's pipe until execution finishes. This causes subtasks to block in write() if the pipe is full, which only happens if there is a large amount of output (such as in -dump-ast mode). Fixing output buffering and reenabling the Unix TaskQueue implementation is tracked by <rdar://problem/15795234>. Swift SVN r12135
38 lines
1.3 KiB
C++
38 lines
1.3 KiB
C++
//===--- TaskQueue.cpp - Task Execution Work Queue ------------------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2015 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See http://swift.org/LICENSE.txt for license information
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// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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///
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/// \file
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/// \brief This file includes the appropriate platform-specific TaskQueue
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/// implementation (or the default serial fallback if one is not available),
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/// as well as any platform-agnostic TaskQueue functionality.
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///
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//===----------------------------------------------------------------------===//
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#include "swift/Basic/TaskQueue.h"
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using namespace swift;
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using namespace swift::sys;
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// Include the correct TaskQueue implementation.
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// TODO: re-enable Unix implementation once output buffering works correctly
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// (<rdar://problem/15795234>).
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#if 0 && LLVM_ON_UNIX
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#include "Unix/TaskQueue.inc"
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#else
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#include "Default/TaskQueue.inc"
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#endif
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TaskQueue::TaskQueue(unsigned NumberOfParallelTasks)
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: NumberOfParallelTasks(NumberOfParallelTasks) {}
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TaskQueue::~TaskQueue() = default;
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