UNIXworkcode

1 /* 2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. 3 * 4 * Copyright 2013 Olaf Wintermann. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #ifndef VFS_H 30 #define VFS_H 31 32 #include "../public/vfs.h" 33 #include "acl.h" 34 35 #ifdef __cplusplus 36 extern "C" { 37 #endif 38 39 typedef struct SysVFSDir { 40 DIR *dir; 41 struct dirent *cur; 42 } SysVFSDir; 43 44 enum VFSAioOp { 45 VFS_AIO_READ = 0, 46 VFS_AIO_WRITE 47 }; 48 typedef enum VFSAioOp VFSAioOp; 49 50 int vfs_init(); 51 52 typedef int(*vfs_op_f)(VFSContext *, char *); 53 typedef int(*sys_op_f)(VFSContext *, char *, SysACL *); 54 int vfs_path_op(VFSContext *ctx, char *path, vfs_op_f op, uint32_t access); 55 56 SYS_FILE sys_vfs_open(VFSContext *ctx, char *path, int oflags); 57 int sys_vfs_stat(VFSContext *ctx, char *path, struct stat *buf); 58 int sys_vfs_fstat(VFSContext *ctx, SYS_FILE fd, struct stat *buf); 59 VFS_DIR sys_vfs_opendir(VFSContext *ctx, char *path); 60 int sys_vfs_mkdir(VFSContext *ctx, char *path); 61 int sys_vfs_unlink(VFSContext *ctx, char *path); 62 63 int sys_path_op(VFSContext *ctx, char *path, sys_op_f op); 64 int sys_acl_check(VFSContext *ctx, uint32_t access_mask, SysACL *externacl); 65 void sys_set_error_status(VFSContext *ctx); 66 67 ssize_t sys_file_read(SYS_FILE fd, void *buf, size_t nbyte); 68 ssize_t sys_file_write(SYS_FILE fd, const void *buf, size_t nbyte); 69 ssize_t sys_file_pread(SYS_FILE fd, void *buf, size_t nbyte, off_t offset); 70 ssize_t sys_file_pwrite(SYS_FILE fd, const void *buf, size_t nbyte, off_t offset); 71 off_t sys_file_seek(SYS_FILE fd, off_t offset, int whence); 72 void sys_file_close(SYS_FILE fd); 73 int sys_file_aioread(aiocb_s *aiocb); 74 int sys_file_aiowrite(aiocb_s *aiocb); 75 76 int sys_dir_read(VFS_DIR dir, VFS_ENTRY *entry, int getstat); 77 void sys_dir_close(VFS_DIR dir); 78 79 int sys_mkdir(VFSContext *ctx, char *path, SysACL *sysacl); 80 int sys_unlink(VFSContext *ctx, char *path, SysACL *sysacl); 81 82 void vfs_queue_aio(aiocb_s *aiocb, VFSAioOp op); 83 84 #ifdef __cplusplus 85 } 86 #endif 87 88 #endif /* VFS_H */ 89 90