Clean-up: consumer.hpp: coding style indentation fix

[lttng-tools.git] / include / lttng / constant.h

diff --git a/include/lttng/constant.h b/include/lttng/constant.h
index ed3ebe073b25c973495d059372a8a32e8ce091d9..f20e96458f795335aacdba6ccdc0a62b4f6e9b12 100644 (file)
--- a/include/lttng/constant.h
+++ b/include/lttng/constant.h
@@ -1,27 +1,15 @@
 /*
- * Copyright (C) 2014 - David Goulet <dgoulet@efficios.com>
+ * Copyright (C) 2014 David Goulet <dgoulet@efficios.com>
  *
- * This library is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Lesser General Public License, version 2.1 only,
- * as published by the Free Software Foundation.
+ * SPDX-License-Identifier: LGPL-2.1-only
  *
- * This library is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
- * for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this library; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 #ifndef LTTNG_CONSTANT_H
 #define LTTNG_CONSTANT_H
 
 #ifndef LTTNG_DEPRECATED
-#if defined (__GNUC__) \
-       && ((__GNUC_MAJOR__ == 4) && (__GNUC_MINOR__ >= 5)  \
-                       || __GNUC_MAJOR__ >= 5)
+#if defined(__GNUC__) && ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 5) || __GNUC__ >= 5)
 #define LTTNG_DEPRECATED(msg) __attribute__((deprecated(msg)))
 #else
 #define LTTNG_DEPRECATED(msg) __attribute__((deprecated))
@@ -45,6 +33,39 @@
 /*
  * Event symbol length. Copied from LTTng kernel ABI.
  */
-#define LTTNG_SYMBOL_NAME_LEN             256
+
+/*!
+@brief
+    Maximum symbol length.
+
+@ingroup api_gen
+*/
+#define LTTNG_SYMBOL_NAME_LEN 256
+
+/*
+ * PROC(5) mentions that PID_MAX_LIMIT may not exceed 2^22 on 64-bit HW.
+ * We prefer to use 32-bits for simplicity's sake.
+ */
+#define LTTNG_MAX_PID    INT32_MAX
+#define LTTNG_MAX_PID_STR "2147483647"
+
+/*!
+@brief
+    Maximum name length.
+
+@ingroup api_gen
+*/
+#define LTTNG_NAME_MAX 255
+
+/*
+ * POSIX guarantees that a host name will not exceed 255 characters.
+ * Moreover, RFC 1035 limits the length of a fully qualified domain name (FQDN)
+ * to 255 characters.
+ *
+ * 256 is used to include a trailing NULL character.
+ */
+#define LTTNG_HOST_NAME_MAX 256
+
+#define LTTNG_PATH_MAX 4096
 
 #endif /* LTTNG_CONSTANT_H */