Set the stage for making the builtin modules more dynamic.
Note: this only converts crypto and net, I will add more extensions in a
later commit.
* node.h: Add utility macro for converting macro values to strings.
* node.h: Include the actual module name inside the module structure, not
just the file it was built from.
* node.h: New Macro, NODE_MODULE_DECL, for declaring an external reference
to a module structure.
* node_extensions.cc: New File, implements get_builtin_module, which
iterates over the module structures that are compiled into node.
* node.cc(node::Binding): Use the new module lookup function to find
modules.
* node_{net,crypto}.c: Add NODE_MODULEs to generate the module structure.
Simplify and inline ObjectWrap::Wrap
Inline and clean up ObjectWrap::Unwrap
Move ObjectWrap into its own file.
Remove handle from ObjectWrap constructor. add obj->Wrap(handle)
Simplify Attach/Detach in ObjectWrap
Remove ObjectWrap::InformV8ofAllocation. (Too messy/complex.)
All the c++ code is now reduced to simple wrappers. The node.fs.File object
is defined entirely in javascript now. As is the actionQueue methods.
This makes the boundaries much cleaner. There is still some thought that
needs to go into how exactly the API should behave but this simplification
is a first step.
This is sloppy: after each ObjectWrap allocation the user needs to
call ObjectWrap::InformV8ofAllocation(). In addition each class deriving
from ObjectWrap needs to implement the virtual method size() which should
return the size of the derived class. If I was better at C++ I could
possibly make this less ugly. For now this is how it is.
Memory usage looks much better after this commit.
Connections were being garbage collected while they were still in progress
since the object would leave scope. This commit adds ObjectWrap::Attach()
and ObjectWrap::Detach() to tell v8 that an object is currently on the event
loop and will be needed in the future.
Other changes to oi_socket.c and net.cc are to fix bugs encountered while
running the HTTP server.
This might need to be changed in the future if ev is needed in thread pools
or extension libraries. However for now it makes sense to just use a single
loop.
