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| author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2011-05-08 00:20:44 +0000 |
|---|---|---|
| committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2011-05-08 00:20:44 +0000 |
| commit | 0a30a23cf0bb5a2abf1f02c5f120641e75067fae (patch) | |
| tree | ec08393efc9f0fd5ea4e76202b280575500fde42 /nuttx/fs/mmap/fs_rammap.h | |
| parent | 77f5bc2c9f37c3e15e1ea07f0954d61c65210e6a (diff) | |
| download | px4-nuttx-0a30a23cf0bb5a2abf1f02c5f120641e75067fae.tar.gz px4-nuttx-0a30a23cf0bb5a2abf1f02c5f120641e75067fae.tar.bz2 px4-nuttx-0a30a23cf0bb5a2abf1f02c5f120641e75067fae.zip | |
More RAM mapping logic
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3577 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/fs/mmap/fs_rammap.h')
| -rw-r--r-- | nuttx/fs/mmap/fs_rammap.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/nuttx/fs/mmap/fs_rammap.h b/nuttx/fs/mmap/fs_rammap.h index c8eba76b6..db19f215c 100644 --- a/nuttx/fs/mmap/fs_rammap.h +++ b/nuttx/fs/mmap/fs_rammap.h @@ -44,6 +44,9 @@ #include <nuttx/config.h> +#include <sys/types.h> +#include <semaphore.h> + #ifdef CONFIG_FS_RAMMAP /**************************************************************************** @@ -68,12 +71,28 @@ struct fs_rammap_s { + struct fs_rammap_s *flink; /* Implements a singly linked list */ + FAR void *addr; /* Start of allocated memory */ + size_t length; /* Length of region */ + off_t offset; /* File offset */ +}; + +/* This structure defines all "mapped" files */ + +struct fs_allmaps_s +{ + sem_t exclsem; /* Provides exclusive access the list */ + struct fs_rammap_s *maps; /* List of mapped files */ }; /**************************************************************************** * Public Variables ****************************************************************************/ +/* This is the list of all mapped files */ + +extern struct fs_allmaps_s g_rammaps; + /**************************************************************************** * Public Function Prototypes ****************************************************************************/ |