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[PATCH 6/8] kern: implement task_set_name


From: Justus Winter
Subject: [PATCH 6/8] kern: implement task_set_name
Date: Sat, 1 Feb 2014 15:09:26 +0100

task_set_name sets the name of a task.  This is a debugging aid.  The
name will be used in error messages printed by the kernel.

* kern/task.c (task_set_name): New function.
* kern/task.h (task_set_name): New declaration.
---
 kern/task.c | 16 ++++++++++++++++
 kern/task.h |  4 ++++
 2 files changed, 20 insertions(+)

diff --git a/kern/task.c b/kern/task.c
index 0b5a6f7..dcb91f5 100644
--- a/kern/task.c
+++ b/kern/task.c
@@ -37,6 +37,7 @@
 #include <mach/vm_param.h>
 #include <mach/task_info.h>
 #include <mach/task_special_ports.h>
+#include <mach_debug/mach_debug_types.h>
 #include <ipc/ipc_space.h>
 #include <ipc/ipc_types.h>
 #include <kern/debug.h>
@@ -1071,6 +1072,21 @@ task_priority(
 }
 
 /*
+ *     task_set_name
+ *
+ *     Set the name of task TASK to NAME.  This is a debugging aid.
+ *     NAME will be used in error messages printed by the kernel.
+ */
+kern_return_t
+task_set_name(
+       task_t                  task,
+       kernel_debug_name_t     name)
+{
+       strncpy(task->name, name, sizeof task->name);
+       return KERN_SUCCESS;
+}
+
+/*
  *     task_collect_scan:
  *
  *     Attempt to free resources owned by tasks.
diff --git a/kern/task.h b/kern/task.h
index 7ae10cd..3c10dc0 100644
--- a/kern/task.h
+++ b/kern/task.h
@@ -39,6 +39,7 @@
 #include <mach/time_value.h>
 #include <mach/mach_param.h>
 #include <mach/task_info.h>
+#include <mach_debug/mach_debug_types.h>
 #include <kern/kern_types.h>
 #include <kern/lock.h>
 #include <kern/queue.h>
@@ -169,6 +170,9 @@ extern kern_return_t        task_assign(
 extern kern_return_t   task_assign_default(
        task_t          task,
        boolean_t       assign_threads);
+extern kern_return_t   task_set_name(
+       task_t                  task,
+       kernel_debug_name_t     name);
 extern void consider_task_collect(void);
 
 /*
-- 
1.8.5.2




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