| 1 | /* |
| 2 | * Copyright (C) 2014 - David Goulet <dgoulet@efficios.com> |
| 3 | * |
| 4 | * This library is free software; you can redistribute it and/or modify it |
| 5 | * under the terms of the GNU Lesser General Public License, version 2.1 only, |
| 6 | * as published by the Free Software Foundation. |
| 7 | * |
| 8 | * This library is distributed in the hope that it will be useful, but WITHOUT |
| 9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License |
| 11 | * for more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU Lesser General Public License |
| 14 | * along with this library; if not, write to the Free Software Foundation, |
| 15 | * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 16 | */ |
| 17 | |
| 18 | #ifndef LTTNG_CONSTANT_H |
| 19 | #define LTTNG_CONSTANT_H |
| 20 | |
| 21 | #ifndef LTTNG_DEPRECATED |
| 22 | #if defined (__GNUC__) \ |
| 23 | && ((__GNUC_MAJOR__ == 4) && (__GNUC_MINOR__ >= 5) \ |
| 24 | || __GNUC_MAJOR__ >= 5) |
| 25 | #define LTTNG_DEPRECATED(msg) __attribute__((deprecated(msg))) |
| 26 | #else |
| 27 | #define LTTNG_DEPRECATED(msg) __attribute__((deprecated)) |
| 28 | #endif /* defined __GNUC__ */ |
| 29 | #endif /* LTTNG_DEPRECATED */ |
| 30 | |
| 31 | #include <limits.h> |
| 32 | /* |
| 33 | * Necessary to include the fixed width type limits on glibc versions older |
| 34 | * than 2.18 when building with a C++ compiler. |
| 35 | */ |
| 36 | #ifndef __STDC_LIMIT_MACROS |
| 37 | #define __STDC_LIMIT_MACROS |
| 38 | #include <stdint.h> |
| 39 | #undef __STDC_LIMIT_MACROS |
| 40 | #else /* #ifndef __STDC_LIMIT_MACROS */ |
| 41 | #include <stdint.h> |
| 42 | #endif /* #else #ifndef __STDC_LIMIT_MACROS */ |
| 43 | #include <sys/types.h> |
| 44 | |
| 45 | /* |
| 46 | * Event symbol length. Copied from LTTng kernel ABI. |
| 47 | */ |
| 48 | #define LTTNG_SYMBOL_NAME_LEN 256 |
| 49 | |
| 50 | /* |
| 51 | * PROC(5) mentions that PID_MAX_LIMIT may not exceed 2^22 on 64-bit HW. |
| 52 | * We prefer to use 32-bits for simplicity's sake. |
| 53 | */ |
| 54 | #define LTTNG_MAX_PID INT32_MAX |
| 55 | #define LTTNG_MAX_PID_STR "2147483647" |
| 56 | |
| 57 | #define LTTNG_NAME_MAX 255 |
| 58 | |
| 59 | /* |
| 60 | * POSIX guarantees that a host name will not exceed 255 characters. |
| 61 | * Moreover, RFC 1035 limits the length of a fully qualified domain name (FQDN) |
| 62 | * to 255 characters. |
| 63 | * |
| 64 | * 256 is used to include a trailing NULL character. |
| 65 | */ |
| 66 | #define LTTNG_HOST_NAME_MAX 256 |
| 67 | |
| 68 | #define LTTNG_PATH_MAX 4096 |
| 69 | |
| 70 | #endif /* LTTNG_CONSTANT_H */ |