gecko-dev/media/mtransport
EKR df473e9155 Bug 856433 - Allow cancellation of nonexistent nrappkit timers off the STS thread. r=abr 2013-04-16 19:29:23 -07:00
..
build Bug 846634 - Part 2: Move EXPORTS to moz.build; r=joey 2013-04-16 15:24:43 -04:00
standalone Bug 846634 - Part 2: Move EXPORTS to moz.build; r=joey 2013-04-16 15:24:43 -04:00
test Bug 856433 - Allow cancellation of nonexistent nrappkit timers off the STS thread. r=abr 2013-04-16 19:29:23 -07:00
third_party Bug 860222: use our own isascii() for sanitizing TURN passwords r=glandium 2013-04-11 22:46:23 -04:00
README Bug 790517: mtransport - Generic media transport subsystem for ICE and DTLS r=jesup,bsmith,mcmanus 2012-10-02 13:04:58 -07:00
databuffer.h Bug 820102 - Clean up MediaPipeline threading (re-land after fix). r=derf,jesup 2012-12-21 06:03:22 -08:00
dtlsidentity.cpp Bug 836126: Use size_t instead of int for loop variable, in loop running from 0 to sizeof(something). r=ekr 2013-01-31 09:13:29 -08:00
dtlsidentity.h Bug 790517: mtransport - Generic media transport subsystem for ICE and DTLS r=jesup,bsmith,mcmanus 2012-10-02 13:04:58 -07:00
logging.h Bug 836418: Disable the macros MOZ_MTLOG_MODULE() & MOZ_MTLOG() if PR_LOGGING is off. r=jesup 2013-01-30 13:13:38 -08:00
m_cpp_utils.h Bug 790517: mtransport - Generic media transport subsystem for ICE and DTLS r=jesup,bsmith,mcmanus 2012-10-02 13:04:58 -07:00
nr_socket_prsock.cpp Bug 837919 - RTCPeerConnection constructor supports FQDN STUN servers. r=ekr 2013-03-08 15:11:17 -05:00
nr_socket_prsock.h Bug 837919 - RTCPeerConnection constructor supports FQDN STUN servers. r=ekr 2013-03-08 15:11:17 -05:00
nr_timer.cpp Bug 856433 - Allow cancellation of nonexistent nrappkit timers off the STS thread. r=abr 2013-04-16 19:29:23 -07:00
nricectx.cpp Bug 786235 - Rewrite TURN stack to match RFC 5766. r=abr 2013-04-06 17:58:58 -07:00
nricectx.h Bug 860143: Check correct variable when setting host r=ekr 2013-04-10 13:37:50 -05:00
nricemediastream.cpp Bug 829757 - Clean up a=candidate stripping. r=abr 2013-01-19 15:18:28 -08:00
nricemediastream.h Bug 825105 - Fix two clang warnings in media/mtransport/. r=ekr. 2013-02-10 18:01:07 -08:00
nriceresolver.cpp Bug 837919 - RTCPeerConnection constructor supports FQDN STUN servers. r=ekr 2013-03-08 15:11:17 -05:00
nriceresolver.h Bug 837919 - RTCPeerConnection constructor supports FQDN STUN servers. r=ekr 2013-03-08 15:11:17 -05:00
nriceresolverfake.cpp Bug 843644 - DNS resolution for STUN servers. r=abr 2013-02-21 08:52:30 -08:00
nriceresolverfake.h Bug 843644 - DNS resolution for STUN servers. r=abr 2013-02-21 08:52:30 -08:00
objs.mk Bug 837919 - RTCPeerConnection constructor supports FQDN STUN servers. r=ekr 2013-03-08 15:11:17 -05:00
runnable_utils.h Bug 854085. Make thread asserts conditional on DEBUG not MOZ_DEBUG. r=jesup 2013-04-16 13:13:09 -07:00
runnable_utils.py Assert on WrapRunnableRet with NS_DISPATCH_NORMAL 2013-03-04 08:51:48 -08:00
runnable_utils_generated.h Assert on WrapRunnableRet with NS_DISPATCH_NORMAL 2013-03-04 08:51:48 -08:00
sigslot.h Bug 752657: backout sigslot multithreaded due to deadlocks rs=jesup 2012-12-11 12:54:24 -05:00
transportflow.cpp Backout changeset 5abbf6fd5466 (Bug 830100) for sctp_unittest failure ON A CLOSED TREE r=ryanvm 2013-04-09 17:35:20 -04:00
transportflow.h Backout changeset 5abbf6fd5466 (Bug 830100) for sctp_unittest failure ON A CLOSED TREE r=ryanvm 2013-04-09 17:35:20 -04:00
transportlayer.cpp Backout changeset 5abbf6fd5466 (Bug 830100) for sctp_unittest failure ON A CLOSED TREE r=ryanvm 2013-04-09 17:35:20 -04:00
transportlayer.h Backout changeset 5abbf6fd5466 (Bug 830100) for sctp_unittest failure ON A CLOSED TREE r=ryanvm 2013-04-09 17:35:20 -04:00
transportlayerdtls.cpp Bug 817451, Correctly set mRole in PC unit tests. r=ehugg 2012-12-02 18:06:21 -08:00
transportlayerdtls.h Bug 835692: Convert TransportLayerDtls::kMaxDigestLength to be a size_t, since that's how it's used & what it's compared to. r=ekr 2013-01-29 09:01:10 -08:00
transportlayerice.cpp Bug 812278: Remove no-longer-necessary semicolons after MOZ_MTLOG_MODULE macro invocations, to fix GCC pedantic build warnings. r=jesup 2012-11-15 17:50:26 -08:00
transportlayerice.h Bug 790517: mtransport - Generic media transport subsystem for ICE and DTLS r=jesup,bsmith,mcmanus 2012-10-02 13:04:58 -07:00
transportlayerlog.cpp Bug 812278: Remove no-longer-necessary semicolons after MOZ_MTLOG_MODULE macro invocations, to fix GCC pedantic build warnings. r=jesup 2012-11-15 17:50:26 -08:00
transportlayerlog.h Bug 790517: mtransport - Generic media transport subsystem for ICE and DTLS r=jesup,bsmith,mcmanus 2012-10-02 13:04:58 -07:00
transportlayerloopback.cpp Bug 812278: Remove no-longer-necessary semicolons after MOZ_MTLOG_MODULE macro invocations, to fix GCC pedantic build warnings. r=jesup 2012-11-15 17:50:26 -08:00
transportlayerloopback.h Backout changeset 5abbf6fd5466 (Bug 830100) for sctp_unittest failure ON A CLOSED TREE r=ryanvm 2013-04-09 17:35:20 -04:00
transportlayerprsock.cpp Bug 812278: Remove no-longer-necessary semicolons after MOZ_MTLOG_MODULE macro invocations, to fix GCC pedantic build warnings. r=jesup 2012-11-15 17:50:26 -08:00
transportlayerprsock.h Bug 783205 - Networking Dashboard. r=mcmanus, r=jorendorff, sr=biesi 2012-12-10 09:13:55 -05:00

README

This is a generic media transport system for WebRTC.

The basic model is that you have a TransportFlow which contains a
series of TransportLayers, each of which gets an opportunity to
manipulate data up and down the stack (think SysV STREAMS or a
standard networking stack). You can also address individual
sublayers to manipulate them or to bypass reading and writing
at an upper layer; WebRTC uses this to implement DTLS-SRTP.


DATAFLOW MODEL
Unlike the existing nsSocket I/O system, this is a push rather
than a pull system. Clients of the interface do writes downward
with SendPacket() and receive notification of incoming packets
via callbacks registed via sigslot.h. It is the responsibility
of the bottom layer (or any other layer which needs to reference
external events) to arrange for that somehow; typically by
using nsITimer or the SocketTansportService.

This sort of push model is a much better fit for the demands
of WebRTC, expecially because ICE contexts span multiple
network transports.


THREADING MODEL
There are no thread locks. It is the responsibility of the caller to
arrange that any given TransportLayer/TransportFlow is only
manipulated in one thread at once. One good way to do this is to run
everything on the STS thread. Many of the existing layer implementations
(TransportLayerPrsock, TransportLayerIce, TransportLayerLoopback)
already run on STS so in those cases you must run on STS, though
you can do setup on the main thread and then activate them on the
STS.


EXISTING TRANSPORT LAYERS
The following transport layers are currently implemented:

* DTLS -- a wrapper around NSS's DTLS [RFC 6347] stack
* ICE  -- a wrapper around the nICEr ICE [RFC 5245] stack.
* Prsock -- a wrapper around NSPR sockets
* Loopback -- a loopback IO mechanism
* Logging -- a passthrough that just logs its data

The last three are primarily for debugging.