|
|
- #ifndef __LIBS_UNISTD_H__
- #define __LIBS_UNISTD_H__
-
- #define T_SYSCALL 0x80
-
- /* syscall number */
- #define SYS_exit 1
- #define SYS_fork 2
- #define SYS_wait 3
- #define SYS_exec 4
- #define SYS_clone 5
- #define SYS_yield 10
- #define SYS_sleep 11
- #define SYS_kill 12
- #define SYS_gettime 17
- #define SYS_getpid 18
- #define SYS_mmap 20
- #define SYS_munmap 21
- #define SYS_shmem 22
- #define SYS_putc 30
- #define SYS_pgdir 31
- #define SYS_open 100
- #define SYS_close 101
- #define SYS_read 102
- #define SYS_write 103
- #define SYS_seek 104
- #define SYS_fstat 110
- #define SYS_fsync 111
- #define SYS_getcwd 121
- #define SYS_getdirentry 128
- #define SYS_dup 130
- /* OLNY FOR LAB6 */
- #define SYS_lab6_set_priority 255
-
- /* SYS_fork flags */
- #define CLONE_VM 0x00000100 // set if VM shared between processes
- #define CLONE_THREAD 0x00000200 // thread group
- #define CLONE_FS 0x00000800 // set if shared between processes
-
- /* VFS flags */
- // flags for open: choose one of these
- #define O_RDONLY 0 // open for reading only
- #define O_WRONLY 1 // open for writing only
- #define O_RDWR 2 // open for reading and writing
- // then or in any of these:
- #define O_CREAT 0x00000004 // create file if it does not exist
- #define O_EXCL 0x00000008 // error if O_CREAT and the file exists
- #define O_TRUNC 0x00000010 // truncate file upon open
- #define O_APPEND 0x00000020 // append on each write
- // additonal related definition
- #define O_ACCMODE 3 // mask for O_RDONLY / O_WRONLY / O_RDWR
-
- #define NO_FD -0x9527 // invalid fd
-
- /* lseek codes */
- #define LSEEK_SET 0 // seek relative to beginning of file
- #define LSEEK_CUR 1 // seek relative to current position in file
- #define LSEEK_END 2 // seek relative to end of file
-
- #define FS_MAX_DNAME_LEN 31
- #define FS_MAX_FNAME_LEN 255
- #define FS_MAX_FPATH_LEN 4095
-
- #define EXEC_MAX_ARG_NUM 32
- #define EXEC_MAX_ARG_LEN 4095
-
- #endif /* !__LIBS_UNISTD_H__ */
-
|
