Function map_copy

common/gossmap.c:85–102

Accessors for the gossmap */

/* Accessors for the gossmap */
static void map_copy(const struct gossmap *map, size_t offset,
		     void *dst, size_t len)
{
	if (offset >= map->map_size) {
		size_t localoff = offset - map->map_size;
		assert(localoff + len <= tal_bytelen(map->local));
		memcpy(dst, map->local + localoff, len);
	} else {
		assert(offset + len <= map->map_size);
		if (map->mmap)
			memcpy(dst, map->mmap + offset, len);
		else {
			/* Yeah, we'll crash on I/O errors. */
			if (pread(map->fd, dst, len, offset) != len)
				abort();
		}
	}
}

static u8 map_u8(const struct gossmap *map, size_t offset)
{