Added switch_thread_getname and switch_thread_setname functions

Author: sergey-safarov

include/apr_thread_proc.h

@@ -277,6 +277,13 @@ APR_DECLARE(apr_status_t) apr_thread_create(apr_thread_t **new_thread,
 APR_DECLARE(apr_status_t) apr_thread_exit(apr_thread_t *thd, 
                                           apr_status_t retval);
 
+/**
+ * Get name of thread
+ * @param thread The thread that name required to get.
+ * @param name The variable where is will be stored name of thread.
+ */
+APR_DECLARE(apr_status_t) apr_thread_getname(apr_thread_t *thread, char ** name);
+
 /**
  * block until the desired thread stops executing.
  * @param retval The return value from the dead thread.
@@ -285,6 +292,13 @@ APR_DECLARE(apr_status_t) apr_thread_exit(apr_thread_t *thd,
 APR_DECLARE(apr_status_t) apr_thread_join(apr_status_t *retval, 
                                           apr_thread_t *thd); 
 
+/**
+ * Set name of thread
+ * @param thread The thread that name will be changed.
+ * @param name The name of thread must be setted. If name is to long, then name stripped to max length supported by operation system.
+ */
+APR_DECLARE(apr_status_t) apr_thread_setname(apr_thread_t *thread, const char *name);
+
 /**
  * force the current thread to yield the processor
  */

threadproc/beos/thread.c

@@ -240,3 +240,13 @@ APR_DECLARE(apr_status_t) apr_thread_once(apr_thread_once_t *control,
 }
 
 APR_POOL_IMPLEMENT_ACCESSOR(thread)
+
+APR_DECLARE(apr_status_t) apr_thread_setname(apr_thread_t *thread, const char *name)
+{
+	return APR_ENOTIMPL;
+}
+
+APR_DECLARE(apr_status_t) apr_thread_getname(apr_thread_t *thread, char ** name)
+{
+	return APR_ENOTIMPL;
+}

threadproc/netware/thread.c

@@ -256,4 +256,12 @@ APR_DECLARE(apr_status_t) apr_thread_once(apr_thread_once_t *control,
 
 APR_POOL_IMPLEMENT_ACCESSOR(thread)
 
+APR_DECLARE(apr_status_t) apr_thread_setname(apr_thread_t *thread, const char *name)
+{
+	return APR_ENOTIMPL;
+}
 
+APR_DECLARE(apr_status_t) apr_thread_getname(apr_thread_t *thread, char ** name)
+{
+	return APR_ENOTIMPL;
+}

threadproc/os2/thread.c

@@ -74,8 +74,6 @@ static void apr_thread_begin(void *arg)
   apr_pool_destroy(thread->pool);
 }
 
-
-
 APR_DECLARE(apr_status_t) apr_thread_create(apr_thread_t **new, apr_threadattr_t *attr, 
                                             apr_thread_start_t func, void *data, 
                                             apr_pool_t *pool)
@@ -261,3 +259,13 @@ APR_DECLARE(apr_status_t) apr_thread_once(apr_thread_once_t *control,
 
     return APR_SUCCESS;
 }
+
+APR_DECLARE(apr_status_t) apr_thread_setname(apr_thread_t *thread, const char *name)
+{
+	return APR_ENOTIMPL;
+}
+
+APR_DECLARE(apr_status_t) apr_thread_getname(apr_thread_t *thread, char ** name)
+{
+	return APR_ENOTIMPL;
+}

threadproc/unix/thread.c

@@ -22,6 +22,10 @@
 
 #if APR_HAVE_PTHREAD_H
 
+/* Unfortunately the kernel headers do not export the TASK_COMM_LEN
+   macro.  So we have to define it here. Used in apr_thread_getname and apr_thread_setname functions */
+#define TASK_COMM_LEN 16
+
 /* Destroy the threadattr object */
 static apr_status_t threadattr_cleanup(void *data)
 {
@@ -193,6 +197,26 @@ APR_DECLARE(apr_status_t) apr_thread_create(apr_thread_t **new,
     }
 }
 
+APR_DECLARE(apr_status_t) apr_thread_setname(apr_thread_t *thread, const char *name)
+{
+	size_t name_len;
+	if  (!name) {
+		return APR_BADARG;
+	}
+
+	name_len = strlen (name);
+	if ( name_len >= TASK_COMM_LEN) {
+		name = name + name_len - TASK_COMM_LEN + 1;
+	}
+	return pthread_setname_np(*thread->td, name);
+}
+
+APR_DECLARE(apr_status_t) apr_thread_getname(apr_thread_t *thread, char ** name)
+{
+	*name = apr_pcalloc(thread->pool, TASK_COMM_LEN);
+	return pthread_getname_np(*thread->td, *name, TASK_COMM_LEN);
+}
+
 APR_DECLARE(apr_os_thread_t) apr_os_thread_current(void)
 {
     return pthread_self();

threadproc/win32/thread.c

@@ -284,3 +284,13 @@ APR_DECLARE(int) apr_os_thread_equal(apr_os_thread_t tid1,
 }
 
 APR_POOL_IMPLEMENT_ACCESSOR(thread)
+
+APR_DECLARE(apr_status_t) apr_thread_setname(apr_thread_t *thread, const char *name)
+{
+	return APR_ENOTIMPL;
+}
+
+APR_DECLARE(apr_status_t) apr_thread_getname(apr_thread_t *thread, char ** name)
+{
+	return APR_ENOTIMPL;
+}