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/*
* Copying and distribution of this file, with or without modification,
* are permitted in any medium without royalty provided the copyright
* notice and this notice are preserved. This file is offered as-is,
* without any warranty.
*/
#ifndef GNUTLS_LIB_DLWRAP_ZSTD_H_
#define GNUTLS_LIB_DLWRAP_ZSTD_H_
#include <zstd.h>
#if defined(GNUTLS_ZSTD_ENABLE_DLOPEN) && GNUTLS_ZSTD_ENABLE_DLOPEN
#define FUNC(ret, name, args, cargs) \
ret gnutls_zstd_func_##name args;
#define VOID_FUNC FUNC
#include "zstdfuncs.h"
#undef VOID_FUNC
#undef FUNC
#define GNUTLS_ZSTD_FUNC(name) gnutls_zstd_func_##name
#else
#define GNUTLS_ZSTD_FUNC(name) name
#endif /* GNUTLS_ZSTD_ENABLE_DLOPEN */
/* Ensure SONAME to be loaded with dlopen FLAGS, and all the necessary
* symbols are resolved.
*
* Returns 0 on success; negative error code otherwise.
*
* Note that this function is NOT thread-safe; when calling it from
* multi-threaded programs, protect it with a locking mechanism.
*/
int gnutls_zstd_ensure_library (const char *soname, int flags);
/* Unload library and reset symbols.
*
* Note that this function is NOT thread-safe; when calling it from
* multi-threaded programs, protect it with a locking mechanism.
*/
void gnutls_zstd_unload_library (void);
/* Return 1 if the library is loaded and usable.
*
* Note that this function is NOT thread-safe; when calling it from
* multi-threaded programs, protect it with a locking mechanism.
*/
unsigned gnutls_zstd_is_usable (void);
#endif /* GNUTLS_LIB_DLWRAP_ZSTD_H_ */
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