[PATCH vkd3d v3 1/7] vkd3d: Fix pthread_setname_np(3) call on Mac OS.

[Chip Davis]

That function exists on Mac, but it only takes a single argument, the
thread's new name. That's OK for our purposes, since we were calling it
on pthread_self anyhow.

Signed-off-by: Chip Davis 
---

Notes:
    Try 2: Pull the pthread_setname_np(3) call into a header.

Try 3: Detect which variant of pthread_setname_np(3) we have at
           configure time.

configure.ac               | 28 ++++++++++++++++++++++++++++
 libs/vkd3d/command.c       |  4 +---
 libs/vkd3d/vkd3d_private.h | 11 +++++++++++
 3 files changed, 40 insertions(+), 3 deletions(-)

diff --git a/configure.ac b/configure.ac
index 2773a15..973105b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -94,6 +94,34 @@ VKD3D_CHECK_FUNC([HAVE_SYNC_ADD_AND_FETCH], [__sync_add_and_fetch], [__sync_add_
 VKD3D_CHECK_FUNC([HAVE_SYNC_SUB_AND_FETCH], [__sync_sub_and_fetch], [__sync_sub_and_fetch((int *)0, 0)])

VKD3D_CHECK_LIB_FUNCS([pthread_setname_np], [$PTHREAD_LIBS])
+AS_IF([test "x$ac_cv_func_pthread_setname_np" = xyes],
+      [AC_MSG_CHECKING([which variant of pthread_setname_np is present])
+       AC_CACHE_VAL([vkd3d_cv_pthread_setname_np_variant],
+                    [vkd3d_cv_pthread_setname_np_variant=unknown
+                     AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+                         [#ifdef HAVE_PTHREAD_H
+                          #include <pthread.h>
+                          #endif
+						 ],
+                         [pthread_setname_np(pthread_self(), "conftest");])],
+                         [vkd3d_cv_pthread_setname_np_variant=twoarg],
+                         [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+                              [#ifdef HAVE_PTHREAD_H
+                               #include <pthread.h>
+                               #endif
+							  ],
+                              [pthread_setname_np("conftest");])],
+                              [vkd3d_cv_pthread_setname_np_variant=onearg])])])
+       AS_CASE(["$vkd3d_cv_pthread_setname_np_variant"],
+               [onearg],
+               [AC_DEFINE([HAVE_PTHREAD_SETNAME_NP_ONEARG], [1],
+                          [Define to 1 if you have the version of pthread_setname_np(3) that only accepts a name.])
+                AC_MSG_RESULT([name only])],
+               [twoarg],
+               [AC_DEFINE([HAVE_PTHREAD_SETNAME_NP_TWOARG], [1],
+                          [Define to 1 if you have the version of pthread_setname_np(3) that accepts a pthread handle and name.])
+                AC_MSG_RESULT([pthread handle and name])],
+               [AC_MSG_RESULT([unknown])])])

AM_CONDITIONAL([HAVE_WIDL], [test "x$WIDL" != "xno"])
 AM_CONDITIONAL([HAVE_CROSSTARGET32], [test "x$CROSSTARGET32" != "xno"])
diff --git a/libs/vkd3d/command.c b/libs/vkd3d/command.c
index 4db9967..042d2f1 100644
--- a/libs/vkd3d/command.c
+++ b/libs/vkd3d/command.c
@@ -199,9 +199,7 @@ static void *vkd3d_fence_worker_main(void *arg)
     struct vkd3d_fence_worker *worker = arg;
     int rc;

-#ifdef HAVE_PTHREAD_SETNAME_NP
-    pthread_setname_np(pthread_self(), "vkd3d_worker");
-#endif
+	vkd3d_set_thread_name("vkd3d_worker");

for (;;)
     {
diff --git a/libs/vkd3d/vkd3d_private.h b/libs/vkd3d/vkd3d_private.h
index 8efb930..ca9fbaf 100644
--- a/libs/vkd3d/vkd3d_private.h
+++ b/libs/vkd3d/vkd3d_private.h
@@ -86,6 +86,17 @@ struct vkd3d_vulkan_info
     VkPhysicalDeviceSparseProperties sparse_properties;
 };

+static inline void vkd3d_set_thread_name(const char *name)
+{
+#ifdef HAVE_PTHREAD_SETNAME_NP
+#ifdef HAVE_PTHREAD_SETNAME_NP_ONEARG
+    pthread_setname_np(name);
+#elif defined(HAVE_PTHREAD_SETNAME_NP_TWOARG)
+    pthread_setname_np(pthread_self(), name);
+#endif
+#endif
+}
+
 struct vkd3d_instance
 {
     VkInstance vk_instance;