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authorqiuyiuestc <[email protected]>2010-11-17 15:41:10 +0000
committerqiuyiuestc <[email protected]>2010-11-17 15:41:10 +0000
commitb2fb4be8111ae46ca64e4b135cfd47895900a0e1 (patch)
tree7008d2fcdd53bc50dc0b391c9007f4afa1bbfe37 /components/libdl/dlopen.c
parente83ffff6665605057e9aa6f5c8b98b83622121b4 (diff)
add initial libdl
git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1052 bbd45198-f89e-11dd-88c7-29a3b14d5316
Diffstat (limited to 'components/libdl/dlopen.c')
-rw-r--r--components/libdl/dlopen.c39
1 files changed, 39 insertions, 0 deletions
diff --git a/components/libdl/dlopen.c b/components/libdl/dlopen.c
new file mode 100644
index 0000000000..d392a94523
--- /dev/null
+++ b/components/libdl/dlopen.c
@@ -0,0 +1,39 @@
+/*
+ * File : dlopen.c
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006 - 2010, RT-Thread Development Team
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rt-thread.org/license/LICENSE
+ *
+ * Change Logs:
+ * Date Author Notes
+ * 2010-11-17 yi.qiu first version
+ */
+
+#include <rtthread.h>
+#include <rtm.h>
+
+void* rt_dlopen(const char *filename, int flags)
+{
+ rt_module_t module;
+
+ RT_ASSERT(filename != RT_NULL);
+
+ /* find in module list */
+ module = rt_module_find(filename);
+
+ if(module)
+ {
+ module->nref++;
+ return (void*)module;
+ }
+ else
+ {
+ module = rt_module_open(filename);
+ }
+}
+
+RTM_EXPORT(rt_dlopen)
+