Unix port: Give threads a name on Linux

May also work on Darwin, but I can't test it :-)

contrib/ports/unix/port/sys_arch.c

@@ -1,8 +1,8 @@
 /*
  * Copyright (c) 2001-2003 Swedish Institute of Computer Science.
- * All rights reserved. 
+ * All rights reserved.
- * 
+ *
- * Redistribution and use in source and binary forms, with or without modification, 
+ * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:
  *
  * 1. Redistributions of source code must retain the above copyright notice,
@@ -11,21 +11,21 @@
  *    this list of conditions and the following disclaimer in the documentation
  *    and/or other materials provided with the distribution.
  * 3. The name of the author may not be used to endorse or promote products
- *    derived from this software without specific prior written permission. 
+ *    derived from this software without specific prior written permission.
  *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
- * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
- * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
  * OF SUCH DAMAGE.
  *
  * This file is part of the lwIP TCP/IP stack.
- * 
+ *
  * Author: Adam Dunkels <adam@sics.se>
  *
  */
@@ -44,6 +44,8 @@
  *    will block until there is more room instead of just
  *    leaking messages.
  */
+#define _GNU_SOURCE /* pull in pthread_setname_np() on Linux */
+
 #include "lwip/debug.h"
 
 #include <string.h>
@@ -135,7 +137,7 @@ static u32_t cond_wait(pthread_cond_t * cond, pthread_mutex_t * mutex,
 
 /*-----------------------------------------------------------------------------------*/
 /* Threads */
-static struct sys_thread * 
+static struct sys_thread *
 introduce_thread(pthread_t id)
 {
   struct sys_thread *thread;
@@ -186,10 +188,14 @@ sys_thread_new(const char *name, lwip_thread_fn function, void *arg, int stacksi
   thread_data->arg = arg;
   thread_data->function = function;
   code = pthread_create(&tmp,
-                        NULL, 
+                        NULL,
-                        thread_wrapper, 
+                        thread_wrapper,
                         thread_data);
-  
+
+#ifdef LWIP_UNIX_LINUX
+  pthread_setname_np(tmp, name);
+#endif
+
   if (0 == code) {
     st = introduce_thread(tmp);
   }
@@ -268,7 +274,7 @@ sys_mbox_free(struct sys_mbox **mb)
     struct sys_mbox *mbox = *mb;
     SYS_STATS_DEC(mbox.used);
     sys_arch_sem_wait(&mbox->mutex, 0);
-    
+
     sys_sem_free_internal(mbox->not_empty);
     sys_sem_free_internal(mbox->not_full);
     sys_sem_free_internal(mbox->mutex);