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package lmdb
/*
#include <errno.h>
#include "lmdb.h"
*/
import "C"
import "syscall"
func operrno(op string, ret C.int) error {
if ret == C.MDB_SUCCESS {
return nil
}
if minErrno <= ret && ret <= maxErrno {
return &OpError{Op: op, Errno: Errno(ret)}
}
// translate C errors into corresponding syscall.Errno values so that
// IsErrnoSys functions correctly, a kludge unknowning inherited from LMDB.
// the errno in the returned OpError cannot be passed to C.mdb_strerror.
// see the implementation of C.mdb_strerror for information about how the
// following table was generated.
var errno syscall.Errno
switch ret {
case C.ENOENT:
errno = syscall.ENOENT /* 2, FILE_NOT_FOUND */
case C.EIO:
errno = syscall.EIO /* 5, ACCESS_DENIED */
case C.ENOMEM:
errno = syscall.ENOMEM /* 12, INVALID_ACCESS */
case C.EACCES:
errno = syscall.EACCES /* 13, INVALID_DATA */
case C.EBUSY:
errno = syscall.EBUSY /* 16, CURRENT_DIRECTORY */
case C.EINVAL:
errno = syscall.EINVAL /* 22, BAD_COMMAND */
case C.ENOSPC:
errno = syscall.ENOSPC /* 28, OUT_OF_PAPER */
default:
errno = syscall.Errno(ret)
}
return &OpError{Op: op, Errno: errno}
}
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