int write_all(int fd, const char *buf, size_t len);
__printf_2_3 int write_va_buffer(int fd, const char *fmt, ...);
int write_all(int fd, const char *buf, size_t len);
__printf_2_3 int write_va_buffer(int fd, const char *fmt, ...);
int para_select(int n, fd_set *readfds, fd_set *writefds,
struct timeval *timeout_tv);
__must_check int mark_fd_nonblocking(int fd);
__must_check int mark_fd_blocking(int fd);
void para_fd_set(int fd, fd_set *fds, int *max_fileno);
int para_select(int n, fd_set *readfds, fd_set *writefds,
struct timeval *timeout_tv);
__must_check int mark_fd_nonblocking(int fd);
__must_check int mark_fd_blocking(int fd);
void para_fd_set(int fd, fd_set *fds, int *max_fileno);
-__must_check int para_fgets(char *line, int size, FILE *f);
-int para_mmap(size_t length, int prot, int flags, int fd, off_t offset,
- void *map);
+int para_mmap(size_t length, int prot, int flags, int fd, void *map);
int para_open(const char *path, int flags, mode_t mode);
int para_mkdir(const char *path, mode_t mode);
int para_chdir(const char *path);
int para_open(const char *path, int flags, mode_t mode);
int para_mkdir(const char *path, mode_t mode);
int para_chdir(const char *path);