library.h File Reference

Dynamically loadable library support. More...

#include <sys/cdefs.h>
#include <kos/thread.h>
#include <kos/elf.h>
#include <kos/fs.h>

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Data Structures
struct	klibrary_t
	Loaded library structure. More...

Macros
#define	LIBRARY_DEFAULTS   0
	Defaults: no flags.

Typedefs
typedef tid_t	libid_t
	Library ID type.

Functions
klibrary_t *	library_by_libid (libid_t libid)
	Look up a library by ID.
klibrary_t *	library_create (int flags)
	Create a new library shell.
int	library_destroy (klibrary_t *lib)
	Destroy a library.
klibrary_t *	library_open (const char *name, const char *fn)
	Try to open a library by name.
klibrary_t *	library_lookup (const char *name)
	Look up a library by name.
klibrary_t *	library_lookup_fn (const char *fn)
	Look up a library by filename.
int	library_close (klibrary_t *lib)
	Close a previously opened library.
libid_t	library_get_libid (klibrary_t *lib)
	Retrieve the specified library's runtime-assigned ID.
int	library_get_refcnt (klibrary_t *lib)
	Retrieve the specified library's reference count.
const char *	library_get_name (klibrary_t *lib)
	Retrieve the specified library's name.
uint32_t	library_get_version (klibrary_t *lib)
	Retrieve the specified library's version.

Detailed Description

Dynamically loadable library support.

This file contains definitions for accessing loadable libraries at runtime. Each library has a name and a version number that it can be referenced by. One must be careful with these dynamic libraries as there is no private storage per instance, and all memory space is shared.

Libraries can both export and import symbols. Imported symbols may require other libraries to be loaded earlier. Libraries are reference counted so that they can be opened multiple times without actually loading them multiple times, and so that a close will act as expected in situations like this.

Author

Megan Potter

Ruslan Rostovtsev