5 * Copyright (c) 2011 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; only
10 * version 2.1 of the License.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 #include <urcu/compiler.h>
25 #define MAX_ERRNO 4095
28 int IS_ERR_VALUE(long value
)
30 if (caa_unlikely((unsigned long) value
>= (unsigned long) -MAX_ERRNO
))
37 void *ERR_PTR(long error
)
39 return (void *) error
;
43 long PTR_ERR(const void *ptr
)
49 int IS_ERR(const void *ptr
)
51 return IS_ERR_VALUE((long) ptr
);
54 #endif /* _LTTNG_ERROR_H */
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