| 53 | // ---- Helper: write a struct stat into wasm memory -------------------------- |
| 54 | |
| 55 | static void write_wasm_stat(Stack& stack, i64_t stat_buf, const stat_t& st) { |
| 56 | uint8_t buf[WASM_STAT_SIZE] = {}; |
| 57 | uint32_t dev = (uint32_t)st.st_dev; |
| 58 | uint32_t ino = (uint32_t)st.st_ino; |
| 59 | uint32_t mode = (uint32_t)st.st_mode; |
| 60 | uint32_t nlink = (uint32_t)st.st_nlink; |
| 61 | uint32_t uid = (uint32_t)st.st_uid; |
| 62 | uint32_t gid = (uint32_t)st.st_gid; |
| 63 | uint64_t size = (uint64_t)st.st_size; |
| 64 | uint64_t atime_ns = stat_atime_ns(st); |
| 65 | uint64_t mtime_ns = stat_mtime_ns(st); |
| 66 | uint64_t ctime_ns = stat_ctime_ns(st); |
| 67 | |
| 68 | std::memcpy(buf + 0, &dev, 4); |
| 69 | std::memcpy(buf + 4, &ino, 4); |
| 70 | std::memcpy(buf + 8, &mode, 4); |
| 71 | std::memcpy(buf + 12, &nlink, 4); |
| 72 | std::memcpy(buf + 16, &uid, 4); |
| 73 | std::memcpy(buf + 20, &gid, 4); |
| 74 | std::memcpy(buf + 24, &size, 8); |
| 75 | std::memcpy(buf + 32, &atime_ns, 8); |
| 76 | std::memcpy(buf + 40, &mtime_ns, 8); |
| 77 | std::memcpy(buf + 48, &ctime_ns, 8); |
| 78 | |
| 79 | mem_write(stack, stat_buf, buf, WASM_STAT_SIZE); |
| 80 | } |
| 81 | |
| 82 | // ---- sys_fs host functions -------------------------------------------------- |
| 83 | // Each function uses get_ptr() to extract pointer/length locals (wasm64: i64). |
no test coverage detected