#ifndef _AKSL_INTERNAL_H_
#define _AKSL_INTERNAL_H_

/*
 * Shared internals. Not installed, not part of the public API -- anything here
 * is free to change without so much as a patch bump.
 */

#include <errno.h>

/*
 * errno as an akerror status, with a fallback for when it is not one.
 *
 * A libc call is allowed to fail without touching errno -- malloc(0) may return
 * NULL and leave it alone -- and errno may equally be a leftover from some
 * earlier, unrelated, *successful* call. Reporting it raw produces a FAIL whose
 * status is 0, which every downstream DETECT and CATCH reads as success while
 * the context still holds a pool slot: an error that is invisible and leaks at
 * the same time. Every errno-sourced status in this library goes through here,
 * and every wrapped call clears errno first so the value read back is its own.
 * See UPGRADING.md.
 */
#define AKSL_ERRNO_OR(__fallback) (errno != 0 ? errno : (__fallback))

#endif // _AKSL_INTERNAL_H_