Namespace lttng/bug.h as lttng/ust-bug.h

[lttng-ust.git] / include / lttng / align.h

diff --git a/include/lttng/align.h b/include/lttng/align.h
index ebf03e8dbb0c61a7f724f115e5144b3a7243fb58..fbe87f197a232f15575804cf41d15017c6bbec81 100644 (file)
--- a/include/lttng/align.h
+++ b/include/lttng/align.h
@@ -1,53 +1,24 @@
-#ifndef _UST_ALIGN_H
-#define _UST_ALIGN_H
-
 /*
- * lttng/align.h
- *
- * (C) Copyright 2010-2011 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
+ * SPDX-License-Identifier: MIT
  *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
+ * Copyright (C) 2010-2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
  */
 
-#include <lttng/bug.h>
-#include <unistd.h>
-#include <limits.h>
-
-#ifndef PAGE_SIZE      /* Cygwin limits.h defines its own PAGE_SIZE */
-#define PAGE_SIZE              sysconf(_SC_PAGE_SIZE)
-#endif
+#ifndef _LTTNG_ALIGN_H
+#define _LTTNG_ALIGN_H
 
-#define PAGE_MASK              (~(PAGE_SIZE - 1))
-#define __ALIGN_MASK(v, mask)  (((v) + (mask)) & ~(mask))
-#define ALIGN(v, align)                __ALIGN_MASK(v, (__typeof__(v)) (align) - 1)
-#define PAGE_ALIGN(addr)       ALIGN(addr, PAGE_SIZE)
+#include <lttng/ust-bug.h>
 
 /**
- * offset_align - Calculate the offset needed to align an object on its natural
- *                alignment towards higher addresses.
+ * lttng_ust_offset_align - Calculate the offset needed to align an object on
+ *                its natural alignment towards higher addresses.
  * @align_drift:  object offset from an "alignment"-aligned address.
  * @alignment:    natural object alignment. Must be non-zero, power of 2.
  *
  * Returns the offset that must be added to align towards higher
  * addresses.
  */
-#define offset_align(align_drift, alignment)                                  \
+#define lttng_ust_offset_align(align_drift, alignment)                        \
        ({                                                                     \
                LTTNG_BUILD_RUNTIME_BUG_ON((alignment) == 0                    \
                                   || ((alignment) & ((alignment) - 1)));      \
@@ -55,18 +26,18 @@
        })
 
 /**
- * offset_align_floor - Calculate the offset needed to align an object
- *                      on its natural alignment towards lower addresses.
+ * lttng_ust_offset_align_floor - Calculate the offset needed to align an
+ *                object on its natural alignment towards lower addresses.
  * @align_drift:  object offset from an "alignment"-aligned address.
  * @alignment:    natural object alignment. Must be non-zero, power of 2.
  *
  * Returns the offset that must be substracted to align towards lower addresses.
  */
-#define offset_align_floor(align_drift, alignment)                            \
+#define lttng_ust_offset_align_floor(align_drift, alignment)                  \
        ({                                                                     \
                LTTNG_BUILD_RUNTIME_BUG_ON((alignment) == 0                    \
                                   || ((alignment) & ((alignment) - 1)));      \
                (((align_drift) - (alignment)) & ((alignment) - 1));           \
        })
 
-#endif /* _UST_ALIGN_H */
+#endif /* _LTTNG_ALIGN_H */