Set N bytes of S to C */
| 958 | |
| 959 | /* Set N bytes of S to C */ |
| 960 | size_t lwp_data_set(struct rt_lwp *lwp, void *dst, int byte, size_t size) |
| 961 | { |
| 962 | size_t copy_len = 0; |
| 963 | char *temp_page = 0; |
| 964 | char *dst_iter, *dst_iter_aligned, *dst_next_page; |
| 965 | char *dst_put_end; |
| 966 | |
| 967 | if (!size || !dst) |
| 968 | { |
| 969 | return 0; |
| 970 | } |
| 971 | |
| 972 | dst_iter = dst; |
| 973 | dst_put_end = dst + size; |
| 974 | dst_next_page = |
| 975 | (char *)(((size_t)dst_iter + ARCH_PAGE_SIZE) & ~(ARCH_PAGE_SIZE - 1)); |
| 976 | temp_page = rt_pages_alloc_ext(0, PAGE_ANY_AVAILABLE); |
| 977 | if (temp_page) |
| 978 | { |
| 979 | do |
| 980 | { |
| 981 | size_t bytes_to_put = (char *)dst_next_page - (char *)dst_iter; |
| 982 | if (bytes_to_put > size) |
| 983 | { |
| 984 | bytes_to_put = size; |
| 985 | } |
| 986 | |
| 987 | dst_iter_aligned = (void *)((long)dst_iter & ~ARCH_PAGE_MASK); |
| 988 | if (!ALIGNED(dst_iter) || bytes_to_put != ARCH_PAGE_SIZE) |
| 989 | if (rt_aspace_page_get(lwp->aspace, dst_iter_aligned, temp_page)) |
| 990 | break; |
| 991 | |
| 992 | memset(temp_page + (dst_iter - dst_iter_aligned), byte, bytes_to_put); |
| 993 | if (rt_aspace_page_put(lwp->aspace, dst_iter_aligned, temp_page)) |
| 994 | break; |
| 995 | |
| 996 | dst_iter = dst_iter + bytes_to_put; |
| 997 | size -= bytes_to_put; |
| 998 | dst_next_page = dst_next_page + ARCH_PAGE_SIZE; |
| 999 | copy_len += bytes_to_put; |
| 1000 | } while (dst_iter < dst_put_end); |
| 1001 | |
| 1002 | rt_pages_free(temp_page, 0); |
| 1003 | } |
| 1004 | |
| 1005 | return copy_len; |
| 1006 | } |
| 1007 | |
| 1008 | size_t lwp_user_strlen_ext(struct rt_lwp *lwp, const char *s) |
| 1009 | { |
no test coverage detected