Function updMeta

graphdb.js:1082–1131

(self, type)

}

function updMeta(self, type) {
	var buf;
	switch (type) {

		case META_PAGE_ADD:
			buf = U.createBufferSize(4);
			buf.writeUInt32LE(self.header.pages);
			Fs.write(self.fd, buf, 0, buf.length, 31, self.cb_error);
			break;

		case META_PAGE_ADD3:
			buf = U.createBufferSize(4);
			buf.writeUInt32LE(self.header.pages, 0);
			Fs.write(self.fd, buf, 0, buf.length, 31, function() {
				buf.writeUInt32LE(self.header.relationpageindex, 0);
				Fs.write(self.fd, buf, 0, buf.length, 47, self.cb_error);
			});
			break;

		case META_RELATIONPAGEINDEX:
			buf = U.createBufferSize(4);
			buf.writeUInt32LE(self.header.relationpageindex, 0);
			Fs.write(self.fd, buf, 0, buf.length, 47, self.cb_error);
			break;

		case META_CLASSESRELATIONS:

			var obj = {};
			obj.c = []; // classes
			obj.r = []; // relations

			for (var i = 0; i < self.header.classindex; i++) {
				var item = self.$classes[i + 1];
				obj.c.push({ n: item.name, i: item.index, p: item.pageindex, r: item.schema.raw, d: item.documentindex });
			}

			for (var i = 0; i < self.header.relationindex; i++) {
				var item = self.$relations[i + 1];
				obj.r.push({ n: item.name, i: item.index, p: item.pageindex, b: item.both ? 1 :0, d: item.documentindex });
			}

			buf = U.createBufferSize(HEADERSIZE - 45);
			buf.writeUInt8(self.header.classindex, 0);
			buf.writeUInt8(self.header.relationindex, 1);
			buf.writeUInt32LE(self.header.relationpageindex, 2);
			buf.write(JSON.stringify(obj), 6);
			Fs.write(self.fd, buf, 0, buf.length, 45, self.cb_error);
			break;
	}
}

function insDocument(self) {