Merge branch 'feature/pthread_name_affinity_config' into 'master'

pthread: make affinity and task name configurable

See merge request idf/esp-idf!3878

docs/en/api-reference/system/esp_pthread.rst

@@ -8,6 +8,8 @@ This module offers Espressif specific extensions to the pthread library that can
   * Stack size of the pthreads
   * Priority of the created pthreads
   * Inheriting this configuration across threads
+  * Thread name
+  * Core affinity / core pinning.
 
 Example to tune the stack size of the pthread:
 
@@ -19,7 +21,7 @@ Example to tune the stack size of the pthread:
    {
        pthread_t t1;
 
-       esp_pthread_cfg_t cfg;
+       esp_pthread_cfg_t cfg = esp_create_default_pthread_config();
        cfg.stack_size = (4 * 1024);
        esp_pthread_set_cfg(&cfg);
 
@@ -50,7 +52,7 @@ The API can also be used for inheriting the settings across threads. For example
 
         pthread_t t1;
 
-        esp_pthread_cfg_t cfg;
+        esp_pthread_cfg_t cfg = esp_create_default_pthread_config();
         cfg.stack_size = (4 * 1024);
         cfg.inherit_cfg = true;
         esp_pthread_set_cfg(&cfg);