Fix issue #174: FreeBSD was excluded from including the POSIX semaphore
implementation header. The previous conditional compilation had an empty
branch for LIBIPC_OS_FREEBSD, causing 'no member named sync in namespace
ipc::detail' errors.
FreeBSD supports POSIX semaphore APIs (sem_open, sem_wait, sem_post, etc.),
so it should use the same semaphore_impl.h as Linux and QNX.
- Add LIBIPC_LOG() to functions in platform files that use log.error/warning/debug
- Fixed files:
- POSIX platform: mutex.h, semaphore_impl.h, shm_posix.cpp
- Windows platform: get_sa.h, mutex.h, semaphore.h, shm_win.cpp
- Sync layer: condition.cpp, mutex.cpp, semaphore.cpp
All functions using the new log interface now properly initialize the logger with LIBIPC_LOG()
- Add IPC_OS_FREEBSD_ platform detection macro
- Enable FreeBSD to use POSIX pthread implementation (shared with QNX)
- Update all conditional compilation directives to include FreeBSD
- Update README to reflect FreeBSD platform support
FreeBSD uses the existing POSIX implementation which supports:
- Process-shared mutexes (PTHREAD_PROCESS_SHARED)
- Robust mutexes (PTHREAD_MUTEX_ROBUST)
- Timed lock operations
- POSIX shared memory
This is a minimal change that reuses the mature POSIX implementation
already proven by QNX platform support.
