diff options
Diffstat (limited to 'gruel')
| -rw-r--r-- | gruel/src/include/gruel/thread.h | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/gruel/src/include/gruel/thread.h b/gruel/src/include/gruel/thread.h index 0427a8efc..595b7b1ac 100644 --- a/gruel/src/include/gruel/thread.h +++ b/gruel/src/include/gruel/thread.h @@ -39,6 +39,8 @@ namespace gruel { typedef boost::mutex::scoped_lock scoped_lock; typedef boost::condition_variable condition_variable; + /*! \brief a system-dependent typedef for the underlying thread type. + */ #if defined(_WIN32) || defined(__WIN32__) || defined(WIN32) typedef HANDLE gr_thread_t; #elif defined(macintosh) || defined(__APPLE__) || defined(__APPLE_CC__) @@ -47,12 +49,83 @@ namespace gruel { typedef pthread_t gr_thread_t; #endif + /*! \brief Get the current thread's ID as a gr_thread_t + * + * We use this when setting the thread affinity or any other + * low-level thread settings. Can be called withing a GNU Radio + * block to get a reference to its current thread ID. + */ GRUEL_API gr_thread_t get_current_thread_id(); + + /*! \brief Bind the current thread to a set of cores. + * + * Wrapper for system-dependent calls to set the affinity of the + * current thread to the processor mask. The mask is simply a + * 1-demensional vector containing the processor or core number from + * 0 to N-1 for N cores. + * + * Note: this does not work on OSX; it is a nop call since OSX does + * not support the concept of thread affinity (and what they do + * support in this way since 10.5 is not what we want or can use in + * this fashion). + */ GRUEL_API void thread_bind_to_processor(const std::vector<unsigned int> &mask); + + /*! \brief Convineince function to bind the current thread to a single core. + * + * Wrapper for system-dependent calls to set the affinity of the + * current thread to a given core from 0 to N-1 for N cores. + * + * Note: this does not work on OSX; it is a nop call since OSX does + * not support the concept of thread affinity (and what they do + * support in this way since 10.5 is not what we want or can use in + * this fashion). + */ GRUEL_API void thread_bind_to_processor(unsigned int n); + + /*! \brief Bind a thread to a set of cores. + * + * Wrapper for system-dependent calls to set the affinity of the + * given thread ID to the processor mask. The mask is simply a + * 1-demensional vector containing the processor or core number from + * 0 to N-1 for N cores. + * + * Note: this does not work on OSX; it is a nop call since OSX does + * not support the concept of thread affinity (and what they do + * support in this way since 10.5 is not what we want or can use in + * this fashion). + */ GRUEL_API void thread_bind_to_processor(gr_thread_t thread, const std::vector<unsigned int> &mask); + + + /*! \brief Convineince function to bind the a thread to a single core. + * + * Wrapper for system-dependent calls to set the affinity of the + * given thread ID to a given core from 0 to N-1 for N cores. + * + * Note: this does not work on OSX; it is a nop call since OSX does + * not support the concept of thread affinity (and what they do + * support in this way since 10.5 is not what we want or can use in + * this fashion). + */ GRUEL_API void thread_bind_to_processor(gr_thread_t thread, unsigned int n); + + /*! \brief Remove any thread-processor affinity for the current thread. + * + * Note: this does not work on OSX; it is a nop call since OSX does + * not support the concept of thread affinity (and what they do + * support in this way since 10.5 is not what we want or can use in + * this fashion). + */ GRUEL_API void thread_unbind(); + + /*! \brief Remove any thread-processor affinity for a given thread ID. + * + * Note: this does not work on OSX; it is a nop call since OSX does + * not support the concept of thread affinity (and what they do + * support in this way since 10.5 is not what we want or can use in + * this fashion). + */ GRUEL_API void thread_unbind(gr_thread_t thread); } /* namespace gruel */ |