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2016-05-30Close listening sockets at transport removalAnders Svensson
The transport interface documented in diameter_transport(3) is used to start/stop accepting/connecting transport processes: they're started with a function call, and told to die with their parent process. In the accepting case, both diameter_tcp and diameter_sctp start a listening process when the first accepting transport is started. However, there's no way for a listening process to find out that that it should stop listening when transport configuration is removed. Both diameter_tcp and diameter_sctp have used a timer to terminate the listening process after all existing accepting processes have died as a consequence of transport removal. The problem with this is that nothing stops a new client from connecting before this, and also that no new transport can succeed in opening the same listening port (eg. reconfiguration) until the old listener dies. This commit solves the problem by adding diameter_reg:subscribe/2, to allow callers to subscribe to messages about added/removed associations. A call to diameter:add_transport/2 results in a new child process that registers a term that a listening process subscribes to. Transport removal results in the death of the child, and the resulting notification to the listener causes the latter to close its socket and terminate. This is still an internal interface, but the subscription mechanism should probably be made external (eg. a diameter:subscribe/1 that can be used to subscribe to specified messages), so that transport modules other than diameter's own can make use of it. There is no support for soft upgrade.
2015-06-18Change license text to APLv2Bruce Yinhe
2015-02-20Refresh example codeAnders Svensson
Which hasn't received any attention for some time. Clean it up, rename the poorly named peer.erl (it's Diameter *nodes* that are implemented), and make the it possible to specify arbitrary transport configuration.
2014-03-29Move info modules into own subdirectoryAnders Svensson
Possibly overkill for two modules but it mirrors their different treatment by the makefile.
2014-03-29Include compiler and info modules in app fileAnders Svensson
Albeit as comments. This is just to make it more obvious that these aren't include in the modules list, since they typically aren't needed/wanted on a target system. Also add comments for the corresponding dependencies on syntax_tools and runtime_tools, as well as the optional runtime dependency on ssl.
2013-02-18Remove dialyzer nowarn_unused_function workaroundAnders Svensson
The workaround (commit 57d5564f) was to dialyzer only understanding nowarn_unused_function on individual functions. This is no longer the case as of R15B01 (commit 477fd95a).
2013-02-08Split message handling in diameter_service into diameter_trafficAnders Svensson
Traffic handling is connected to the service implementation through the pick_peer callback and failover but diameter_service was getting unwieldy as home to both the service process and traffic handling.
2013-02-08Add RFC 6733 dictionariesAnders Svensson
The RFC 6733 accounting dictionary includes rfc6733 in its name. The RFC 3588 dictionary doesn't and is left as-is for backwards compatibility.
2013-01-22Add registered server names to app fileAnders Svensson
This was simply missed.
2012-08-31Update copyright yearsBjörn-Egil Dahlberg
2012-08-23Add diameter_transport for transport start indirectionAnders Svensson
Module contains a transport start function that calls an a specified function, and more.
2011-12-16Install example dictionariesAnders Svensson
2011-12-16Move example code to examples/codeAnders Svensson
2011-12-08Tell dialyzer not to warn about unused functionsAnders Svensson
Depending on the dictionary, generated dictionary modules may contain unused functions included from diameter_gen.hrl. There may still be warnings however since even used functions can contain code that isn't reached for a given dictionary. It would be useful for diameter to generate spec attributes for a dictionary's generated records but the format of these is currently undocumented.
2011-12-06Smarter diameter_callbackAnders Svensson
The module was originally just intended as a minimal callback implementation that could be used as a template. Being able to order just a subset of callbacks (with reasonable defaults) makes for simpler code in many cases however so ready support for this can be useful.
2011-12-05Move type definitions into diameter.erlAnders Svensson
2011-12-02diameter_spec_util -> diameter_dict_util and adapt to parserAnders Svensson
Errors are now detected after the parse with format_error/1 providing understandable error messages, pointing to the offending line number(s) in the dictionary source.
2011-12-02Replace dictionary file parserAnders Svensson
The previous parse was very adhoc and simply crashed on any kind of input error, providing no identification of the objectionable input that caused the parse to fail. The new parser is generated from a yecc grammar, making it easier both to understand what it is that's being parsed and to provide useful diagnostics to the user in case of error.
2011-10-19Minor tweaks and cleanupAnders Svensson
Tweak some comments and variable names, move things around a bit (default src target is now opt, not debug), only clean what's built, use +warn_export_vars.
2011-10-17One makefile for src build instead of recursionAnders Svensson
Simpler, no duplication of similar makefiles and makes for better dependencies. (Aka, recursive make considered harmful.)
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