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/* Simple Plugin API */
/* SPDX-FileCopyrightText: Copyright © 2018 Wim Taymans */
/* SPDX-License-Identifier: MIT */
#ifndef SPA_UTILS_RESULT_H
#define SPA_UTILS_RESULT_H
#ifdef __cplusplus
extern "C" {
#endif
/**
* \defgroup spa_result Result handling
* Asynchronous result utilities
*/
/**
* \addtogroup spa_result
* \{
*/
#include <errno.h>
#include <spa/utils/defs.h>
#ifndef SPA_API_RESULT
#ifdef SPA_API_IMPL
#define SPA_API_RESULT SPA_API_IMPL
#else
#define SPA_API_RESULT static inline
#endif
#endif
#define SPA_ASYNC_BIT (1 << 30)
#define SPA_ASYNC_SEQ_MASK (SPA_ASYNC_BIT - 1)
#define SPA_ASYNC_MASK (~SPA_ASYNC_SEQ_MASK)
#define SPA_RESULT_IS_OK(res) ((res) >= 0)
#define SPA_RESULT_IS_ERROR(res) ((res) < 0)
#define SPA_RESULT_IS_ASYNC(res) (((res) & SPA_ASYNC_MASK) == SPA_ASYNC_BIT)
#define SPA_RESULT_ASYNC_SEQ(res) ((res) & SPA_ASYNC_SEQ_MASK)
#define SPA_RESULT_RETURN_ASYNC(seq) (SPA_ASYNC_BIT | SPA_RESULT_ASYNC_SEQ(seq))
SPA_API_RESULT const char *spa_strerror(int err)
{
int _err = -(err);
if (SPA_RESULT_IS_ASYNC(err))
_err = EINPROGRESS;
return strerror(_err);
}
/**
* \}
*/
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* SPA_UTILS_RESULT_H */