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- /*
- (C) 1995 AROS - The Amiga Replacement OS
- $Id: openlibrary.c 1.1 1995/11/14 22:18:52 digulla Exp digulla $
- $Log: openlibrary.c $
- * Revision 1.1 1995/11/14 22:18:52 digulla
- * Initial revision
- *
- Desc:
- Lang: english
- */
- #include "exec_intern.h"
- #include <exec/execbase.h>
- #include <exec/lists.h>
- #include <aros/libcall.h>
-
- /*****************************************************************************
-
- NAME */
- #include <exec/libraries.h>
- #include <clib/exec_protos.h>
-
- __AROS_LH2(struct Library *, OpenLibrary,
-
- /* SYNOPSIS */
- __AROS_LA(UBYTE *, libName, A1),
- __AROS_LA(ULONG, version, D0),
-
- /* LOCATION */
- struct ExecBase *, SysBase, 92, Exec)
-
- /* FUNCTION
- Opens a library given by name and revision. If the library
- doesn't exist in memory it is tried to load it from disk.
- It this fails too, NULL is returned.
-
- INPUTS
- libName - Pointer to the library's name.
- version - the library's version number.
-
- RESULT
- Pointer to library structure or NULL.
-
- NOTES
-
- EXAMPLE
-
- BUGS
-
- SEE ALSO
- CloseLibrary().
-
- INTERNALS
-
- HISTORY
- 21-10-95 digulla automatically created from
- include:clib/exec_protos.h
-
- *****************************************************************************/
- {
- __AROS_FUNC_INIT
-
- __AROS_BASE_EXT_DECL(struct ExecBase *,SysBase)
- struct Library * library;
-
- /* Arbitrate for the library list */
- Forbid();
-
- /* Look for the library in our list */
- library = (struct Library *) FindName (&SysBase->LibList, libName);
-
- /* Something found ? */
- if(library!=NULL)
- {
- /* Check version */
- if(library->lib_Version>=version)
- {
- /* Call Open vector */
- library=__AROS_LC1(struct Library *, open,
- __AROS_LCA(ULONG, version, D0),
- struct Library *, library, 1, UserLib);
- }
- }
- /*
- else
- {
- Under normal circumstances you'd expect the library loading here -
- but this is only exec which doesn't know anything about the
- filesystem level. Therefore dos.library has to SetFunction() this vector
- for the additional functionality.
- }
- */
-
- /* All done. */
- Permit();
- return library;
- __AROS_FUNC_EXIT
- } /* OpenLibrary */
-