This is a hassle-free BBA option intended for local play with multiple
Dolphin instances running *in the same system*. After selecting
**Broadband Adapter (IPC)** in the **SP1** slot in the GameCube section
in the settings, games that support LAN play will be able to discover
each other, without requiring third-party software or relatively complex
TAP setups.
The implementation is based on cpp-ipc, a high-performance inter-process
communication library that uses shared memory as transport layer.
Supported platforms are:
- [x] Linux
- [x] Windows
- [ ] macOS (cpp-ipc does not support this platform)
- [ ] FreeBSD (cpp-ipc does not support this platform)
- [ ] Android (cpp-ipc needs some adjustments; while it could work,
launching two Dolphin instances within the same Android system may be
both challenging and impractical)
PauseAndLock is now only called with do_lock=true, and unpause_on_unlock
only ever was used when do_lock is false (which is now handled in
RestoreStateAndUnlock instead), so both parameters are unnecessary.
Replace calls of PauseAndLock(do_lock=false) with new function
RestoreStateAndUnlock for clarity.
Callers of PauseAndLock ignored the return value when do_lock is
false, so RestoreStateAndUnlock doesn't need to return anything.
RestoreStateAndUnlock was only called with control_adjacent=true. Remove
the parameter and unconditionally call the function that was gated
behind it being true.
CPUManager::PauseAndLock is now only called with do_lock=true, and
unpause_on_unlock only ever was used when do_lock is false (which is now
handled in RestoreStateAndUnlock instead), so both parameters are
unnecessary.
Replace call of CPUManager::PauseAndLock(do_lock=false) with new
function RestoreStateAndUnlock for clarity.
Callers of Core::PauseAndLock ignore the return value when do_lock is
false, so in that case was_unpaused in Core::PauseAndLock doesn't need
to be set and so RestoreStateAndUnlock doesn't need to return anything.
Make s_have_fake_cpu_thread a class member instead. In addition to
getting rid of a bit of static state, this simplifies refactoring in an
upcoming commit.
OProfile is not used at all these days, most major distributions do not ship it anymore (Debian, Fedora, and Alpine to name the few I've checked) and following a discussion on Discord, nobody is apparently using it, most devs not even being aware of it. This removes an optional dependency from Dolphin.
