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author | JF002 <JF002@users.noreply.github.com> | 2020-05-16 16:15:38 +0200 |
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committer | GitHub <noreply@github.com> | 2020-05-16 16:15:38 +0200 |
commit | d58f57b1b5a616debf893f209f1d96cac101489e (patch) | |
tree | 9df19606a2615586bb533d39fb42c84be8774092 /src/libs/mynewt-nimble/porting/nimble/include/os/util.h | |
parent | 24a1f87a78584d3b67f07ea7972ea0d8e1f8167c (diff) | |
parent | d6c6ac4cf5801e17caf7bfc0878423703ed0413b (diff) |
Merge pull request #30 from JF002/nimble
Nimble
Diffstat (limited to 'src/libs/mynewt-nimble/porting/nimble/include/os/util.h')
-rw-r--r-- | src/libs/mynewt-nimble/porting/nimble/include/os/util.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/src/libs/mynewt-nimble/porting/nimble/include/os/util.h b/src/libs/mynewt-nimble/porting/nimble/include/os/util.h new file mode 100644 index 00000000..3e59670c --- /dev/null +++ b/src/libs/mynewt-nimble/porting/nimble/include/os/util.h @@ -0,0 +1,38 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +#ifndef H_OS_UTIL_ +#define H_OS_UTIL_ + +/* Helpers to pass integers as pointers and vice-versa */ +#define POINTER_TO_UINT(p) ((unsigned int) ((uintptr_t) (p))) +#define UINT_TO_POINTER(u) ((void *) ((uintptr_t) (u))) +#define POINTER_TO_INT(p) ((int) ((intptr_t) (p))) +#define INT_TO_POINTER(u) ((void *) ((intptr_t) (u))) + +/* Helper to retrieve pointer to "parent" object in structure */ +#define CONTAINER_OF(ptr, type, field) \ + ((type *)(((char *)(ptr)) - offsetof(type, field))) + +/* Helper to calculate number of elements in array */ +#ifndef ARRAY_SIZE +#define ARRAY_SIZE(array) \ + (sizeof(array) / sizeof((array)[0])) +#endif +#endif |