diff options
Diffstat (limited to 'src/kernel/include/vfs.h')
| -rw-r--r-- | src/kernel/include/vfs.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/src/kernel/include/vfs.h b/src/kernel/include/vfs.h index cca4952..82b02f4 100644 --- a/src/kernel/include/vfs.h +++ b/src/kernel/include/vfs.h @@ -41,15 +41,21 @@ struct fs; struct fs_node; struct fs_handle; +typedef struct user_region user_region_t; + // ------------------------------------------- // Structure defining a handle to an open file typedef struct { + // Standard read-write architecture size_t (*read)(fs_handle_ptr f, size_t offset, size_t len, char* buf); size_t (*write)(fs_handle_ptr f, size_t offset, size_t len, const char* buf); bool (*readdir)(fs_handle_ptr f, dirent_t *d); int (*ioctl)(fs_handle_ptr f, int command, void* data); void (*close)(fs_handle_ptr f); + // Page cache architecture, must be implemented by all files opened with FM_MMAP + uint32_t (*get_page)(fs_handle_ptr f, size_t offset); + void (*commit_page)(fs_handle_ptr f, size_t offset, uint64_t time); // notifies change } fs_handle_ops_t; typedef struct fs_handle { @@ -165,11 +171,16 @@ bool fs_stat(fs_t *fs, const char* file, stat_t *st); fs_handle_t* fs_open(fs_t *fs, const char* file, int mode); void ref_file(fs_handle_t *file); void unref_file(fs_handle_t *file); + int file_get_mode(fs_handle_t *f); +bool file_stat(fs_handle_t *f, stat_t *st); + size_t file_read(fs_handle_t *f, size_t offset, size_t len, char* buf); size_t file_write(fs_handle_t *f, size_t offset, size_t len, const char* buf); -bool file_stat(fs_handle_t *f, stat_t *st); int file_ioctl(fs_handle_t *f, int command, void* data); bool file_readdir(fs_handle_t *f, dirent_t *d); +uint32_t file_get_page(fs_handle_t *f, size_t offset); +void file_commit_page(fs_handle_t *f, size_t offset, uint64_t time); + /* vim: set ts=4 sw=4 tw=0 noet :*/ |