lib/thread: hide low-level details from applications

evl_get_current() contains implementation details which are definitely
not part of the API and the way this works should not be exposed.
Signed-off-by: Philippe Gerum <rpm@xenomai.org>

eshi/internal.h

@@ -12,6 +12,9 @@
 #include <pthread.h>
 #include <stdio.h>
 
+/* Enable dlopen() on libeshi.so. */
+#define EVL_TLS_MODEL	"global-dynamic"
+
 static inline
 void timespec_add(struct timespec *r, const struct timespec *t)
 {

eshi/proxy.c

@@ -10,6 +10,7 @@
 #include <stdio.h>
 #include <evl/thread.h>
 #include <evl/proxy.h>
+#include "internal.h"
 
 static __thread __attribute__ ((tls_model (EVL_TLS_MODEL)))
 char fmt_buf[1024];

include/eshi/evl/thread.h

@@ -12,9 +12,6 @@
 #include <stdbool.h>
 #include <evl/syscall.h>
 
-/* Enable dlopen() on libeshi.so. */
-#define EVL_TLS_MODEL	"global-dynamic"
-
 #define EVL_STACK_DEFAULT			\
 	({					\
 		int __ret = PTHREAD_STACK_MIN;	\

include/evl/thread.h

@@ -17,9 +17,6 @@
 #include <uapi/evl/sched.h>
 #include <uapi/evl/factory.h>
 
-/* Enable dlopen() on libevl.so. */
-#define EVL_TLS_MODEL	"global-dynamic"
-
 #define EVL_STACK_DEFAULT			\
 	({					\
 		int __ret = PTHREAD_STACK_MIN;	\
@@ -35,20 +32,6 @@
 extern "C" {
 #endif
 
-extern __thread __attribute__ ((tls_model (EVL_TLS_MODEL)))
-struct evl_user_window *evl_current_window;
-
-static inline int evl_get_current_mode(void)
-{
-	return evl_current_window ?
-		evl_current_window->state : T_INBAND;
-}
-
-static inline bool evl_is_inband(void)
-{
-	return !!(evl_get_current_mode() & T_INBAND);
-}
-
 int evl_attach_thread(int flags, const char *fmt, ...);
 
 int evl_detach_thread(int flags);
@@ -64,6 +47,8 @@ int evl_switch_oob(void);
 
 int evl_switch_inband(void);
 
+bool evl_is_inband(void);
+
 int evl_get_state(int efd, struct evl_thread_state *statebuf);
 
 int evl_unblock_thread(int efd);

lib/internal.h

@@ -84,12 +84,24 @@
 		__ret ? -errno : 0;				\
 	})
 
+/* Enable dlopen() on libevl.so. */
+#define EVL_TLS_MODEL	"global-dynamic"
+
 extern __thread __attribute__ ((tls_model (EVL_TLS_MODEL)))
 fundle_t evl_current;
 
 extern __thread __attribute__ ((tls_model (EVL_TLS_MODEL)))
 int evl_efd;
 
+extern __thread __attribute__ ((tls_model (EVL_TLS_MODEL)))
+struct evl_user_window *evl_current_window;
+
+static inline int evl_get_current_mode(void)
+{
+	return evl_current_window ?
+		evl_current_window->state : T_INBAND;
+}
+
 static inline fundle_t evl_get_current(void)
 {
 	return evl_current;

lib/thread.c

@@ -169,6 +169,11 @@ int evl_get_self(void)
 	return evl_efd;
 }
 
+bool evl_is_inband(void)
+{
+	return !!(evl_get_current_mode() & T_INBAND);
+}
+
 int evl_switch_oob(void)
 {
 	int ret;