and could not previously handle uints. This bug has now been fixed.

Own Id: OTP-4061 Aux Id: seq7079

was not working correctly for floating point arguments on some platforms. This is now corrected.

Own Id: OTP-4379

did not compare the node parts of pids, ports, and references. This has now been fixed. Comparison between two pids, ports, or references does now conform to the Erlang specification.

Own Id: OTP-4512 Aux Id: OTP-4511

Erl_Interface and EI now supports 64 bit architectures.

Own Id: OTP-4772

There are new functions that support the GCC and Visual C++ 64 bit extended integer types.

Own Id: OTP-4772

If you compile the library from source you can use the ei library together with GMP, the GNU multi precision library, to convert integers larger than 64 bits from and to the external format.

Own Id: OTP-4772

Some general code improvements where done like correcting buffer sizes, added more error checking etc.

Own Id: OTP-4772

In order to conform to the Erlang specification, comparison between two pids was changed in the R9B release. This change did however break a deadlock prevention algorithm used by Mnesia during release upgrade. Therefore, comparison between two pids has been changed back so that R9B nodes are compatible with Erlang nodes running pre-R9 releases.

Pre-R9 comparison between two pids which now is used again: If t1 and t2 are both pids, t1 will precede t2 if and only if either

The node local id consist of two integers; serial which is most significant, and number.

The Erlang specification states: If t1 and t2 are both refs, both PIDs, or both ports, then t1 precedes t2 if and only if either

Note that comparisons between two refs, or two ports will still conform to the Erlang specification.

*** POTENTIAL INCOMPATIBILITY ***

Own Id: OTP-4715 Aux Id: OTP-4511, OTP-4512

Erl_Interface has been rewritten extensively. The library is now documented and supported. The old is considered obsolete, and provided only for backward compatibility.

Erl_Interface is now thread-safe, and multiple C-nodes may run from the same process.

New functions are added for connecting and accepting connections from ; these are documented in .

New functions are added for converting to and from Erlang binary format; these are documented in .

Changed back the return values from and to 1 (as they used to be). Incompatible with plain R7, compatible with previous versions.

*** INCOMPATIBILITY with R7B ***

Own Id: OTP-3772

A race-condition bug in the term allocation routines was corrected.

Own Id: OTP-3809

Erl_Interface could not be linked with pthreads.

Own Id: OTP-3810 Aux Id: Seq 5032

The TCB of VxWorks processes no longer grows when is accessed. On Pthreads platforms the use of no longer crashes programs using multithreading.

Own Id: OTP-3820

Name clashes between Erlang emulator and Erl_Interface on VxWorks removed.

Own Id: OTP-3824

Memory lossage affecting pids, ports and refs fixed.

An error reporting facility has been introduced.

Own Id: OTP-3641

ETERMs are now shrunk to a more reasonable size.

Own Id: OTP-3648

Lists containing negative numbers were incorrectly encoded by . This has been corrected.

Own Id: OTP-3535

The reference type has been extended from 18 bits to 82 bits. For compatibility with older nodes, an R6 node can send a ref to an older node; if the older node sends it back, it has lost all but its 18 least significant bits, but still compares equal to the original ref. The external format has been extended to represent the new longer refs; that means for example that binaries with refs, produced on an R6 node, cannot be converted to a term on an older node. In , a function has been added, and macros and .

*** POTENTIAL INCOMPATIBILITY ***

Own Id: OTP-3140 Aux Id: OTP-3139

The function has the problem that a fixed buffer must be given - a larger message than expected is simply discarded. A function has been introduced, which dynamically resizes the buffer given to it, if needed.

Own Id: OTP-3313 Aux Id: OTP-2927

is added to all the and files in order to support use from C++.

On Unix the object files are now produced with the option to make it possible to include them in a shared library.

Own Id: OTP-3138 Aux Id: Seq 1722

A buffer overflow in was causing C-node crashes on Linux.

Own Id: OTP-2743

When decoding very long strings (more than 65535 characters) the terminating 0 was left out.

Own Id: OTP-2744

was not handshaking properly with Erlang, causing incoming connection attempts to fail.

Own Id: OTP-2862

Very large negative numbers are no longer encoded incorrectly.

Own Id: OTP-2897

Atoms could sometimes contain an unterminated string. This is fixed.

Own Id: OTP-2956

Erl_Interface now uses the SENS resolver functions if they are available at runtime. This primarily concerns use on the VxWorks platform.

Own Id: OTP-3034 Aux Id: Seq 1559

The documentation for no longer makes erroneous reference to the remote node.

Own Id: OTP-3102 Aux Id: Seq 1671

Erl_Interface has been moved out of the Erlang runtime system (ERTS) and is now a separate application. This has implications for all users of Erl_Interface, who will need to make changes to the Makefiles used to build applications based on Erl_Interface. In particular, header and library files are no longer in . The and directories are now located in the directory (i.e. the directory name is now version specific).

Own Id: OTP-3082