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refactor: simplify async D-Bus connection handling

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Stanislav Angelovic
2023-12-30 21:10:51 +01:00
committed by Stanislav Angelovic
parent 28921ad424
commit 0f99724449
24 changed files with 546 additions and 443 deletions
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@@ -239,3 +239,18 @@ v1.4.0
- Add support for direct, peer-to-peer connections
- Add option to create IConnection directly from an underlying sd_bus instance
- Some additional fixes
v2.x
- Breaking changes in API/ABI/behavior:
- In *synchronous* D-Bus calls, the proxy now **always** blocks the connection for concurrent use until the call finishes (with either a received reply,
an error, or time out). If this creates a connection contention issue in your multi-threaded design, use short-lived, light-weight proxies, or call
the method in an asynchronous way.
- The `PollData` struct has been extended with a new data member: `eventFd`. All hooks with external event loops shall be modified to poll on this fd as well.
- `PollData::timeout_usec` was renamed to `PollData::timeout` and its type has been changed to `std::chrono::microseconds`. This member now holds directly
what before had to be obtained through `PollData::getAbsoluteTimeout()` call.
- `PollData::getRelativeTimeout()` return type was changed to `std::chrono::microseconds`.
- `IConnection::processPendingRequest()` was renamed to `IConnection::processPendingEvent()`.
- Systemd of at least v238 is required to compile sdbus-c++
- A proper fix for timeout handling
- Fix for external event loops in which the event loop thread ID was not correctly initialized (now fixed and simplified by not needing the thread ID anymore)
- Other simplifications, improvements and fixes springing out from the above refactoring