wait
⚠️ Deprecated ⚠️
This is deprecated since version 2.58.
Use g_main_context_is_owner() and separate locking instead.
---Tries to become the owner of the specified context, as with g_main_context_acquire(). But if another thread is the owner, atomically drop @mutex and wait on @cond until that owner releases ownership or until @cond is signaled, then try again (once) to become the owner.
Return
true if the operation succeeded, and this thread is now the owner of @context.
Parameters
cond
a condition variable
mutex
a mutex, currently held