Function send_token

token.c:1065–1089

* Transmit a verbatim buffer of length @p n followed by a token. * If token == -1 then we have reached EOF * If n == 0 then don't send a buffer */

 * If n == 0 then don't send a buffer
 */
void send_token(int f, int32 token, struct map_struct *buf, OFF_T offset,
		int32 n, int32 toklen)
{
	switch (do_compression) {
	case CPRES_NONE:
		simple_send_token(f, token, buf, offset, n);
		break;
	case CPRES_ZLIB:
	case CPRES_ZLIBX:
		send_deflated_token(f, token, buf, offset, n, toklen);
		break;
#ifdef SUPPORT_ZSTD
	case CPRES_ZSTD:
		send_zstd_token(f, token, buf, offset, n);
		break;
#endif
#ifdef SUPPORT_LZ4
	case CPRES_LZ4:
		send_compressed_token(f, token, buf, offset, n);
		break;
#endif
	default:
		NOISY_DEATH("Unknown do_compression value");
	}
}

/*
 * receive a token or buffer from the other end. If the return value is >0 then