Set thread name for debugging

Especially with other components (libavcodec, OSX stuff), the thread
list can get quite populated. Setting the thread name helps when
debugging.

Since this is not portable, we check the OS variants in waf configure.
old-configure just gets a special-case for glibc, since doing a full
check here would probably be a waste of effort.

1 files changed, 19 insertions, 0 deletions

diff --git a/wscript b/wscript
index dc7871dca3..3eadc37aef 100644
--- a/wscript
+++ b/wscript
@@ -212,6 +212,25 @@ iconv support use --disable-iconv.",
         'deps_any': [ 'os-win32', 'os-cygwin' ],
         'func': check_true
     }, {
+        'name': 'glibc-thread-name',
+        'desc': 'GLIBC API for setting thread name',
+        'func': check_statement('pthread.h',
+                                'pthread_setname_np(pthread_self(), "ducks")',
+                                use=['pthreads']),
+    }, {
+        'name': 'osx-thread-name',
+        'desc': 'OSX API for setting thread name',
+        'deps_neg': [ 'glibc-thread-name' ],
+        'func': check_statement('pthread.h',
+                                'pthread_setname_np("ducks")', use=['pthreads']),
+    }, {
+        'name': 'bsd-thread-name',
+        'desc': 'BSD API for setting thread name',
+        'deps_neg': [ 'glibc-thread-name', 'osx-thread-name' ],
+        'func': check_statement('pthread.h',
+                                'pthread_set_name_np(pthread_self(), "ducks")',
+                                use=['pthreads']),
+    }, {
         'name': 'bsd-fstatfs',
         'desc': "BSD's fstatfs()",
         'func': check_statement(['sys/param.h', 'sys/mount.h'],