2 * Copyright (C) 2014 David Goulet <dgoulet@efficios.com>
4 * SPDX-License-Identifier: LGPL-2.1-only
8 #ifndef LTTNG_CONSTANT_H
9 #define LTTNG_CONSTANT_H
11 #ifndef LTTNG_DEPRECATED
12 #if defined (__GNUC__) \
13 && ((__GNUC_MAJOR__ == 4) && (__GNUC_MINOR__ >= 5) \
14 || __GNUC_MAJOR__ >= 5)
15 #define LTTNG_DEPRECATED(msg) __attribute__((deprecated(msg)))
17 #define LTTNG_DEPRECATED(msg) __attribute__((deprecated))
18 #endif /* defined __GNUC__ */
19 #endif /* LTTNG_DEPRECATED */
23 * Necessary to include the fixed width type limits on glibc versions older
24 * than 2.18 when building with a C++ compiler.
26 #ifndef __STDC_LIMIT_MACROS
27 #define __STDC_LIMIT_MACROS
29 #undef __STDC_LIMIT_MACROS
30 #else /* #ifndef __STDC_LIMIT_MACROS */
32 #endif /* #else #ifndef __STDC_LIMIT_MACROS */
33 #include <sys/types.h>
36 * Event symbol length. Copied from LTTng kernel ABI.
38 #define LTTNG_SYMBOL_NAME_LEN 256
41 * PROC(5) mentions that PID_MAX_LIMIT may not exceed 2^22 on 64-bit HW.
42 * We prefer to use 32-bits for simplicity's sake.
44 #define LTTNG_MAX_PID INT32_MAX
45 #define LTTNG_MAX_PID_STR "2147483647"
47 #define LTTNG_NAME_MAX 255
50 * POSIX guarantees that a host name will not exceed 255 characters.
51 * Moreover, RFC 1035 limits the length of a fully qualified domain name (FQDN)
54 * 256 is used to include a trailing NULL character.
56 #define LTTNG_HOST_NAME_MAX 256
58 #define LTTNG_PATH_MAX 4096
60 #endif /* LTTNG_CONSTANT_H */
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