From cca66b9ec4e494c1d919bff0f71a820d8afab1fa Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:24:48 +0200 Subject: Adding upstream version 1.2.2. Signed-off-by: Daniel Baumann --- src/ui/operation-blocker.h | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 src/ui/operation-blocker.h (limited to 'src/ui/operation-blocker.h') diff --git a/src/ui/operation-blocker.h b/src/ui/operation-blocker.h new file mode 100644 index 0000000..b9d714c --- /dev/null +++ b/src/ui/operation-blocker.h @@ -0,0 +1,38 @@ +// SPDX-License-Identifier: GPL-2.0-or-later + +#ifndef SEEN_OPERATION_BLOCKER_H +#define SEEN_OPERATION_BLOCKER_H + +// cooperative counter-based pending operation blocking + +class OperationBlocker { +public: + OperationBlocker() = default; + + bool pending() const { + return _counter > 0; + } + + class scoped_block { + public: + scoped_block(unsigned int& counter): _c(counter) { + ++_c; + } + + ~scoped_block() { + --_c; + } + + private: + unsigned int& _c; + }; + + scoped_block block() { + return scoped_block(_counter); + } + +private: + unsigned int _counter = 0; +}; + +#endif \ No newline at end of file -- cgit v1.2.3