Hello,
This series adds an IPC mechanism to pass data and file descriptors
between two processes. The interface is asynchronous and bi-directional.
* Changes since v1
- Add a bugfix for Timer which prevented the test case to function
properly.
- Add destructor to close the IPC channel.
- Rename attach() to bind().
- Add isBound() mehtod.
- Rework signal emitted for incoming data to Signal<IPCUnixSocket *>
readyRead.
- Make payload argument in send() const at the cost of adding a
const_cast().
- Dropped unused master_ property.
- Updated documentation, thanks Laurent!
- Add a call() method in the test case to simplify test logic.
- Use dup() instead of opening the same file path multiple times.
* Changes since RFC
- Switch to an event notifications and signals for the ingress code
path, making the interface asynchronous.
- Removed any protocol helpers in the IPC object, a protocol should be
implemented on top of the IPC.
- Added documentation.
- Switched to SOCK_DGRAM.
- Send both data and file descriptors in the same sendmsg().
- Fixed spelling and silly errors in the code.
- Merged test case in a single binary.
Niklas Söderlund (3):
libcamera: timer: Stop timer when it is deleted
libcamera: ipc: unix: Add a IPC mechanism based on Unix sockets
test: ipc: unix: Add test for IPCUnixSocket
include/libcamera/timer.h | 1 +
src/libcamera/include/ipc_unixsocket.h | 57 ++++
src/libcamera/ipc_unixsocket.cpp | 312 ++++++++++++++++++++
src/libcamera/meson.build | 2 +
src/libcamera/timer.cpp | 5 +
test/ipc/meson.build | 12 +
test/ipc/unixsocket.cpp | 390 +++++++++++++++++++++++++
test/meson.build | 1 +
8 files changed, 780 insertions(+)
create mode 100644 src/libcamera/include/ipc_unixsocket.h
create mode 100644 src/libcamera/ipc_unixsocket.cpp
create mode 100644 test/ipc/meson.build
create mode 100644 test/ipc/unixsocket.cpp