Method toString

fdbserver/VersionedBTree.actor.cpp:7406–7439

path entries at dumpHeight or below will have their entire pages printed

		// path entries at dumpHeight or below will have their entire pages printed
		std::string toString(int dumpHeight = 0) const {
			std::string r = format("{ptr=%p reason=%s %s ",
			                       this,
			                       PagerEventReasonsStrings[(int)reason],
			                       ::toString(pager->getVersion()).c_str());
			for (int i = 0; i < path.size(); ++i) {
				std::string id = "<debugOnly>";
#if REDWOOD_DEBUG
				id = ::toString(path[i].id);
#endif
				int height = path[i].btPage()->height;
				r += format("\n\t[Level=%d ID=%s ptr=%p Cursor=%s]   ",
				            height,
				            id.c_str(),
				            path[i].page->data(),
				            path[i].cursor.valid() ? path[i].cursor.get().toString(path[i].btPage()->isLeaf()).c_str()
				                                   : "<invalid>");
				if (height <= dumpHeight) {
					BTreePage::BinaryTree::Cursor c = path[i].cursor;
					c.moveFirst();
					int i = 0;
					while (c.valid()) {
						r += format("\n\t\%7d: %s", ++i, c.get().toString(height == 1).c_str());
						c.moveNext();
					}
				}
			}
			r += "\n";
			if (!valid) {
				r += " (invalid) ";
			}
			r += "}";
			return r;
		}

		const RedwoodRecordRef get() { return path.back().cursor.get(); }