Make Thread methods const

Author: kjbracey

rtos/Thread.cpp

@@ -178,7 +178,7 @@ osStatus Thread::set_priority(osPriority priority)
     return ret;
 }
 
-osPriority Thread::get_priority()
+osPriority Thread::get_priority() const
 {
     osPriority_t ret;
     _mutex.lock();
@@ -201,7 +201,7 @@ int32_t Thread::signal_set(int32_t flags)
     return osThreadFlagsSet(_tid, flags);
 }
 
-Thread::State Thread::get_state()
+Thread::State Thread::get_state() const
 {
     uint8_t state = osThreadTerminated;
 
@@ -267,7 +267,7 @@ Thread::State Thread::get_state()
     return user_state;
 }
 
-uint32_t Thread::stack_size()
+uint32_t Thread::stack_size() const
 {
     uint32_t size = 0;
     _mutex.lock();
@@ -280,7 +280,7 @@ uint32_t Thread::stack_size()
     return size;
 }
 
-uint32_t Thread::free_stack()
+uint32_t Thread::free_stack() const
 {
     uint32_t size = 0;
     _mutex.lock();
@@ -296,7 +296,7 @@ uint32_t Thread::free_stack()
     return size;
 }
 
-uint32_t Thread::used_stack()
+uint32_t Thread::used_stack() const
 {
     uint32_t size = 0;
     _mutex.lock();
@@ -312,7 +312,7 @@ uint32_t Thread::used_stack()
     return size;
 }
 
-uint32_t Thread::max_stack()
+uint32_t Thread::max_stack() const
 {
     uint32_t size = 0;
     _mutex.lock();
@@ -334,7 +334,7 @@ uint32_t Thread::max_stack()
     return size;
 }
 
-const char *Thread::get_name()
+const char *Thread::get_name() const
 {
     return _attr.name;
 }

rtos/Thread.h

@@ -305,7 +305,7 @@ class Thread : private mbed::NonCopyable<Thread> {
 
       @note You cannot call this function from ISR context.
     */
-    osPriority get_priority();
+    osPriority get_priority() const;
 
     /** Set the specified Thread Flags for the thread.
       @param   flags  specifies the flags of the thread that should be set.
@@ -356,42 +356,42 @@ class Thread : private mbed::NonCopyable<Thread> {
 
       @note You cannot call this function from ISR context.
     */
-    State get_state();
+    State get_state() const;
 
     /** Get the total stack memory size for this Thread
       @return  the total stack memory size in bytes
 
       @note You cannot call this function from ISR context.
     */
-    uint32_t stack_size();
+    uint32_t stack_size() const;
 
     /** Get the currently unused stack memory for this Thread
       @return  the currently unused stack memory in bytes
 
       @note You cannot call this function from ISR context.
     */
-    uint32_t free_stack();
+    uint32_t free_stack() const;
 
     /** Get the currently used stack memory for this Thread
       @return  the currently used stack memory in bytes
 
       @note You cannot call this function from ISR context.
     */
-    uint32_t used_stack();
+    uint32_t used_stack() const;
 
     /** Get the maximum stack memory usage to date for this Thread
       @return  the maximum stack memory usage to date in bytes
 
       @note You cannot call this function from ISR context.
     */
-    uint32_t max_stack();
+    uint32_t max_stack() const;
 
     /** Get thread name
       @return  thread name or NULL if the name was not set.
 
       @note You may call this function from ISR context.
      */
-    const char *get_name();
+    const char *get_name() const;
 
     /** Get thread id
       @return  thread ID for reference by other functions.
@@ -536,7 +536,7 @@ class Thread : private mbed::NonCopyable<Thread> {
     osThreadAttr_t             _attr;
     bool                       _dynamic_stack;
     Semaphore                  _join_sem;
-    Mutex                      _mutex;
+    mutable Mutex              _mutex;
     mbed_rtos_storage_thread_t _obj_mem;
     bool                       _finished;
 };