rtc_base: define PlatformThread{Id,Ref} on OpenBSD

pthread_self(3) returns a phtread_t (aka. pthread *) value.

src/rtc_base/platform_thread_types.cc

@@ -28,6 +28,8 @@ typedef HRESULT(WINAPI* RTC_SetThreadDescription)(HANDLE hThread,
 #if defined(WEBRTC_FREEBSD)
 #include <sys/thr.h>
 #include <pthread_np.h>
+#elif defined(WEBRTC_OPENBSD)
+#include <pthread_np.h>
 #endif
 
 namespace rtc {
@@ -51,7 +53,7 @@ PlatformThreadId CurrentThreadId() {
 #elif defined(__EMSCRIPTEN__)
   return static_cast<PlatformThreadId>(pthread_self());
 #else
-  // Default implementation for nacl and solaris.
+  // Default implementation for nacl, openbsd and solaris.
   return reinterpret_cast<PlatformThreadId>(pthread_self());
 #endif
 #endif  // defined(WEBRTC_POSIX)
@@ -118,6 +120,8 @@ void SetCurrentThreadName(const char* name) {
   prctl(PR_SET_NAME, reinterpret_cast<unsigned long>(name));  // NOLINT
 #elif defined(WEBRTC_FREEBSD)
   pthread_setname_np(pthread_self(), name);
+#elif defined(WEBRTC_OPENBSD)
+  pthread_set_name_np(pthread_self(), name);
 #elif defined(WEBRTC_MAC) || defined(WEBRTC_IOS)
   pthread_setname_np(name);
 #endif

src/rtc_base/platform_thread_types.h

@@ -22,6 +22,8 @@
 #elif defined(WEBRTC_FUCHSIA)
 #include <zircon/types.h>
 #include <zircon/process.h>
+#elif defined(WEBRTC_OPENBSD)
+#include <pthread.h>
 #elif defined(WEBRTC_POSIX)
 #include <pthread.h>
 #include <unistd.h>
@@ -38,6 +40,9 @@ typedef DWORD PlatformThreadRef;
 #elif defined(WEBRTC_FUCHSIA)
 typedef zx_handle_t PlatformThreadId;
 typedef zx_handle_t PlatformThreadRef;
+#elif defined(WEBRTC_OPENBSD)
+typedef uint64_t PlatformThreadId;
+typedef pthread_t PlatformThreadRef;
 #elif defined(WEBRTC_POSIX)
 typedef pid_t PlatformThreadId;
 typedef pthread_t PlatformThreadRef;