be16f80abc
Any projects which want to use Hush code from now on will need to be licensed as GPLv3 or we will send the lawyers: https://www.softwarefreedom.org/ Notably, Komodo (KMD) is licensed as GPLv2 and is no longer compatible to receive code changes, without causing legal issues. MIT projects, such as Zcash, also cannot pull in changes from the Hush Full Node without permission from The Hush Developers, which may in some circumstances grant an MIT license on a case-by-case basis.
56 lines
2.5 KiB
C
56 lines
2.5 KiB
C
// Copyright (c) 2009-2010 Satoshi Nakamoto
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// Copyright (c) 2009-2012 The Bitcoin Core developers
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// Distributed under the GPLv3 software license, see the accompanying
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// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
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#ifndef BITCOIN_THREADSAFETY_H
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#define BITCOIN_THREADSAFETY_H
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#ifdef __clang__
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// TL;DR Add GUARDED_BY(mutex) to member variables. The others are
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// rarely necessary. Ex: int nFoo GUARDED_BY(cs_foo);
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//
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// See http://clang.llvm.org/docs/LanguageExtensions.html#threadsafety
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// for documentation. The clang compiler can do advanced static analysis
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// of locking when given the -Wthread-safety option.
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#define LOCKABLE __attribute__((lockable))
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#define SCOPED_LOCKABLE __attribute__((scoped_lockable))
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#define GUARDED_BY(x) __attribute__((guarded_by(x)))
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#define GUARDED_VAR __attribute__((guarded_var))
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#define PT_GUARDED_BY(x) __attribute__((pt_guarded_by(x)))
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#define PT_GUARDED_VAR __attribute__((pt_guarded_var))
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#define ACQUIRED_AFTER(...) __attribute__((acquired_after(__VA_ARGS__)))
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#define ACQUIRED_BEFORE(...) __attribute__((acquired_before(__VA_ARGS__)))
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#define EXCLUSIVE_LOCK_FUNCTION(...) __attribute__((exclusive_lock_function(__VA_ARGS__)))
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#define SHARED_LOCK_FUNCTION(...) __attribute__((shared_lock_function(__VA_ARGS__)))
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#define EXCLUSIVE_TRYLOCK_FUNCTION(...) __attribute__((exclusive_trylock_function(__VA_ARGS__)))
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#define SHARED_TRYLOCK_FUNCTION(...) __attribute__((shared_trylock_function(__VA_ARGS__)))
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#define UNLOCK_FUNCTION(...) __attribute__((unlock_function(__VA_ARGS__)))
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#define LOCK_RETURNED(x) __attribute__((lock_returned(x)))
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#define LOCKS_EXCLUDED(...) __attribute__((locks_excluded(__VA_ARGS__)))
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#define EXCLUSIVE_LOCKS_REQUIRED(...) __attribute__((exclusive_locks_required(__VA_ARGS__)))
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#define SHARED_LOCKS_REQUIRED(...) __attribute__((shared_locks_required(__VA_ARGS__)))
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#define NO_THREAD_SAFETY_ANALYSIS __attribute__((no_thread_safety_analysis))
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#else
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#define LOCKABLE
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#define SCOPED_LOCKABLE
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#define GUARDED_BY(x)
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#define GUARDED_VAR
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#define PT_GUARDED_BY(x)
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#define PT_GUARDED_VAR
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#define ACQUIRED_AFTER(...)
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#define ACQUIRED_BEFORE(...)
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#define EXCLUSIVE_LOCK_FUNCTION(...)
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#define SHARED_LOCK_FUNCTION(...)
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#define EXCLUSIVE_TRYLOCK_FUNCTION(...)
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#define SHARED_TRYLOCK_FUNCTION(...)
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#define UNLOCK_FUNCTION(...)
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#define LOCK_RETURNED(x)
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#define LOCKS_EXCLUDED(...)
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#define EXCLUSIVE_LOCKS_REQUIRED(...)
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#define SHARED_LOCKS_REQUIRED(...)
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#define NO_THREAD_SAFETY_ANALYSIS
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#endif // __GNUC__
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#endif // BITCOIN_THREADSAFETY_H
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