[beast: 13/20] SFI: provide Bse::ThreadId and Bse::this_thread_self

[Tim Janik <timj src gnome org>]

commit eca1e43ec9bb4328f9a5298b43b80424ae1e005c
Author: Tim Janik <timj gnu org>
Date:   Sun Sep 17 12:36:51 2017 +0200

    SFI: provide Bse::ThreadId and Bse::this_thread_self
    
    Signed-off-by: Tim Janik <timj gnu org>

 sfi/platform.cc |    6 ++++++
 sfi/platform.hh |   13 ++++++++-----
 2 files changed, 14 insertions(+), 5 deletions(-)
---
diff --git a/sfi/platform.cc b/sfi/platform.cc
index 7dc10a4..e65a9c0 100644
--- a/sfi/platform.cc
+++ b/sfi/platform.cc
@@ -322,6 +322,12 @@ TaskStatus::string ()
 }
 
 // == Thread Info ==
+ThreadId
+this_thread_self ()
+{
+  return std::this_thread::get_id();
+}
+
 void
 this_thread_set_name (const String &name16chars)
 {
diff --git a/sfi/platform.hh b/sfi/platform.hh
index 4fba0df..bbc2aca 100644
--- a/sfi/platform.hh
+++ b/sfi/platform.hh
@@ -3,6 +3,7 @@
 #define __BSE_PLATFORM_HH__
 
 #include <sfi/cxxaux.hh>
+#include <thread>
 
 namespace Bse {
 
@@ -45,11 +46,13 @@ struct TaskStatus {
 };
 
 // == Thread Info ==
-void   this_thread_set_name    (const String &name16chars);
-String this_thread_get_name    ();
-int    this_thread_getpid      ();
-int    this_thread_gettid      ();
-int    this_thread_online_cpus ();
+using ThreadId = std::thread::id;
+ThreadId this_thread_self        ();
+void     this_thread_set_name    (const String &name16chars);
+String   this_thread_get_name    ();
+int      this_thread_getpid      ();
+int      this_thread_gettid      ();
+int      this_thread_online_cpus ();
 
 // == Debugging Aids ==
 extern inline void breakpoint               () BSE_ALWAYS_INLINE;       ///< Cause a debugging breakpoint, 
for development only.