diff options
| -rw-r--r-- | doc/lib.txt | 24 | ||||
| -rw-r--r-- | lib/pure/asyncdispatch.nim | 12 | ||||
| -rw-r--r-- | lib/pure/asynchttpserver.nim | 2 | ||||
| -rw-r--r-- | lib/pure/asyncnet.nim | 38 | ||||
| -rw-r--r-- | web/news.txt | 233 | ||||
| -rw-r--r-- | web/nimrod.ini | 3 |
6 files changed, 219 insertions, 93 deletions
diff --git a/doc/lib.txt b/doc/lib.txt index ca2539631..92ca18ea1 100644 --- a/doc/lib.txt +++ b/doc/lib.txt @@ -223,6 +223,30 @@ Internet Protocols and Support * `uri <uri.html>`_ This module provides functions for working with URIs. +* `asyncdispatch <asyncdispatch.html>`_ + This module implements an asynchronous dispatcher for IO operations. + + **Note:** This module is still largely experimental. + +* `asyncnet <asyncnet.html>`_ + This module implements asynchronous sockets based on the ``asyncdispatch`` + module. + + **Note:** This module is still largely experimental. + +* `asynchttpserver <asynchttpserver.html>`_ + This module implements an asynchronous HTTP server using the ``asyncnet`` + module. + + **Note:** This module is still largely experimental. + +* `net <net.html>`_ + This module implements a high-level sockets API. It will replace the + ``sockets`` module in the future. + +* `rawsockets <rawsockets.html>`_ + This module implements a low-level sockets API. + Parsers ------- diff --git a/lib/pure/asyncdispatch.nim b/lib/pure/asyncdispatch.nim index ae064a7ec..2c0f5ee61 100644 --- a/lib/pure/asyncdispatch.nim +++ b/lib/pure/asyncdispatch.nim @@ -13,13 +13,19 @@ import rawsockets export TPort ## AsyncDispatch -## -------- +## ------------- ## ## This module implements a brand new dispatcher based on Futures. -## On Windows IOCP is used and on other operating systems the selectors module -## is used instead. +## On Windows IOCP is used and on other operating systems the ``selectors`` +## module is used instead. +## +## **Note:** This module is still largely experimental. + # TODO: Discarded void PFutures need to checked for exception. +# TODO: Exceptions are currently uncatchable due to the limitation that +# you cannot have yield in a try stmt. Perhaps I can get the macro to put +# a user's try except around ``future.read``. # -- Futures diff --git a/lib/pure/asynchttpserver.nim b/lib/pure/asynchttpserver.nim index 2f33cf4ab..74b044e05 100644 --- a/lib/pure/asynchttpserver.nim +++ b/lib/pure/asynchttpserver.nim @@ -8,6 +8,8 @@ # ## This module implements a high performance asynchronous HTTP server. +## +## **Note:** This module is still largely experimental. import strtabs, asyncnet, asyncdispatch, parseutils, parseurl, strutils type diff --git a/lib/pure/asyncnet.nim b/lib/pure/asyncnet.nim index 748566aaa..daa6c8839 100644 --- a/lib/pure/asyncnet.nim +++ b/lib/pure/asyncnet.nim @@ -6,6 +6,44 @@ # See the file "copying.txt", included in this # distribution, for details about the copyright. # + +## This module implements a high-level asynchronous sockets API based on the +## asynchronous dispatcher defined in the ``asyncdispatch`` module. +## +## Example +## ======= +## +## The following example demonstrates a simple chat server. +## +## .. code-block::nimrod +## +## import asyncnet, asyncdispatch +## +## var clients: seq[PAsyncSocket] = @[] +## +## proc processClient(client: PAsyncSocket) {.async.} = +## while true: +## let line = await client.recvLine() +## for c in clients: +## await c.send(line & "\c\L") +## +## proc serve() {.async.} = +## var server = newAsyncSocket() +## server.bindAddr(TPort(12345)) +## server.listen() +## +## while true: +## let client = await server.accept() +## clients.add client +## +## processClient(client) +## +## serve() +## runForever() +## +## +## **Note:** This module is still largely experimental. + import asyncdispatch import rawsockets import net diff --git a/web/news.txt b/web/news.txt index 9c84b5490..536cce534 100644 --- a/web/news.txt +++ b/web/news.txt @@ -3,95 +3,150 @@ News ==== -.. - 2014-XX-XX Version 0.9.4 released - ================================= - - - Bugfixes - -------- - - - Library Additions - ----------------- - - - Added ``macros.genSym`` builtin for AST generation. - - Added ``macros.newLit`` procs for easier AST generation. - - - Changes affecting backwards compatibility - ----------------------------------------- - - - The scoping rules for the ``if`` statement changed for better interaction - with the new syntactic construct ``(;)``. - - ``OSError`` family of procedures has been deprecated. Procedures with the same - name but which take different parameters have been introduced. These procs now - require an error code to be passed to them. This error code can be retrieved - using the new ``OSLastError`` proc. - - ``os.parentDir`` now returns "" if there is no parent dir. - - In CGI scripts stacktraces are shown to the user only - if ``cgi.setStackTraceStdout`` is used. - - The symbol binding rules for clean templates changed: ``bind`` for any - symbol that's not a parameter is now the default. ``mixin`` can be used - to require instantiation scope for a symbol. - - ``quoteIfContainsWhite`` now escapes argument in such way that it can be safely - passed to shell, instead of just adding double quotes. - - ``macros.dumpTree`` and ``macros.dumpLisp`` have been made ``immediate``, - ``dumpTreeImm`` and ``dumpLispImm`` are now deprecated. - - The ``nil`` statement has been deprecated, use an empty ``discard`` instead. - - ``sockets.select`` now prunes sockets that are **not** ready from the list - of sockets given to it. - - The ``noStackFrame`` pragma has been renamed to ``asmNoStackFrame`` to - ensure you only use it when you know what you're doing. - - - Compiler Additions - ------------------ - - - The compiler can now warn about "uninitialized" variables. (There are no - real uninitialized variables in Nimrod as they are initialized to binary - zero). Activate via ``{.warning[Uninit]:on.}``. - - The compiler now enforces the ``not nil`` constraint. - - The compiler now supports a ``codegenDecl`` pragma for even more control - over the generated code. - - The compiler now supports a ``computedGoto`` pragma to support very fast - dispatching for interpreters and the like. - - The old evaluation engine has been replaced by a proper register based - virtual machine. This fixes numerous bugs for ``nimrod i`` and for macro - evaluation. - - ``--gc:none`` produces warnings when code uses the GC. - - A ``union`` pragma for better C interoperability is now supported. - - A ``packed`` pragma to control the memory packing/alignment of fields in - an object. - - Arrays can be annotated to be ``unchecked`` for easier low level - manipulations of memory. - - - Language Additions - ------------------ - - - Arrays can now be declared with a single integer literal ``N`` instead of a - range; the range is then ``0..N-1``. - - Added ``requiresInit`` pragma to enforce explicit initialization. - - Exported templates are allowed to access hidden fields. - - The ``using statement`` enables you to more easily author domain-specific - languages and libraries providing OOP-like syntactic sugar. - - Added the possibility to override various dot operators in order to handle - calls to missing procs and reads from undeclared fields at compile-time. - - The overload resolution now supports ``static[T]`` params that must be - evaluable at compile-time. - - Support for user-defined type classes has been added. - - The *command syntax* is supported in a lot more contexts. - - Anonymous iterators are now supported and iterators can capture variables - of an outer proc. - - The experimental ``strongSpaces`` parsing mode has been implemented. - - - Tools improvements - ------------------ - - - c2nim can deal with a subset of C++. Use the ``--cpp`` command line option - to activate. + +2014-XX-XX Version 0.9.4 released +================================= + +The Nimrod development community is proud to announce the release of version +0.9.4 of the Nimrod compiler and tools. + +This release includes about 1300 changes in total including various bug +fixes, new languages features and standard library additions and improvements. +This release brings with it support for user-defined type classes, a brand +new VM for executing Nimrod code at compile-time and new symbol binding +rules for clean templates. +It also introduces support for the brand new +`Babel package manager <https://github.com/nimrod-code/babel>`_ which +has itself seen its first release recently. Many of the wrappers that were +present in the standard library have been moved to separate repositories +and should now be installed using Babel. + +Apart from that a new **experimental** Asynchronous IO API has been added via +the ``asyncdispatch`` and ``asyncnet`` modules. The ``net`` and ``rawsockets`` +modules have also been added and they will likely replace the sockets +module in the next release. The Asynchronous IO API has been designed to +take advantage of Linux's epoll and Windows' IOCP APIs, support for BSD's +kqueue has not been implemented yet but will be in the future. +The Asynchronous IO API provides both +a callback interface and an interface which allows you to write code as you +would if you were writing synchronous code. The latter is done through +the use of an ``await`` keyword which behaves similar to C#'s await. The +following is a very simple chat server demonstrating Nimrod's new async +capabilities. + +.. code-block::nimrod + import asyncnet, asyncdispatch + + var clients: seq[PAsyncSocket] = @[] + + proc processClient(client: PAsyncSocket) {.async.} = + while true: + let line = await client.recvLine() + for c in clients: + await c.send(line & "\c\L") + + proc serve() {.async.} = + var server = newAsyncSocket() + server.bindAddr(TPort(12345)) + server.listen() + + while true: + let client = await server.accept() + clients.add client + + processClient(client) + + serve() + runForever() + +Library Additions +----------------- + +- Added ``macros.genSym`` builtin for AST generation. +- Added ``macros.newLit`` procs for easier AST generation. +- Added module ``logging``. +- Added module ``asyncdispatch``. +- Added module ``asyncnet``. +- Added module ``net``. +- Added module ``rawsockets``. +- Added module ``selectors``. +- Added module ``asynchttpserver``. +- Added support for the new asynchronous IO in the ``httpclient`` module. + +Changes affecting backwards compatibility +----------------------------------------- + +- The scoping rules for the ``if`` statement changed for better interaction + with the new syntactic construct ``(;)``. +- ``OSError`` family of procedures has been deprecated. Procedures with the same + name but which take different parameters have been introduced. These procs now + require an error code to be passed to them. This error code can be retrieved + using the new ``OSLastError`` proc. +- ``os.parentDir`` now returns "" if there is no parent dir. +- In CGI scripts stacktraces are shown to the user only + if ``cgi.setStackTraceStdout`` is used. +- The symbol binding rules for clean templates changed: ``bind`` for any + symbol that's not a parameter is now the default. ``mixin`` can be used + to require instantiation scope for a symbol. +- ``quoteIfContainsWhite`` now escapes argument in such way that it can be safely + passed to shell, instead of just adding double quotes. +- ``macros.dumpTree`` and ``macros.dumpLisp`` have been made ``immediate``, + ``dumpTreeImm`` and ``dumpLispImm`` are now deprecated. +- The ``nil`` statement has been deprecated, use an empty ``discard`` instead. +- ``sockets.select`` now prunes sockets that are **not** ready from the list + of sockets given to it. +- The ``noStackFrame`` pragma has been renamed to ``asmNoStackFrame`` to + ensure you only use it when you know what you're doing. + + +Compiler Additions +------------------ + +- The compiler can now warn about "uninitialized" variables. (There are no + real uninitialized variables in Nimrod as they are initialized to binary + zero). Activate via ``{.warning[Uninit]:on.}``. +- The compiler now enforces the ``not nil`` constraint. +- The compiler now supports a ``codegenDecl`` pragma for even more control + over the generated code. +- The compiler now supports a ``computedGoto`` pragma to support very fast + dispatching for interpreters and the like. +- The old evaluation engine has been replaced by a proper register based + virtual machine. This fixes numerous bugs for ``nimrod i`` and for macro + evaluation. +- ``--gc:none`` produces warnings when code uses the GC. +- A ``union`` pragma for better C interoperability is now supported. +- A ``packed`` pragma to control the memory packing/alignment of fields in + an object. +- Arrays can be annotated to be ``unchecked`` for easier low level + manipulations of memory. +- Support for the new Babel package manager. + + +Language Additions +------------------ + +- Arrays can now be declared with a single integer literal ``N`` instead of a + range; the range is then ``0..N-1``. +- Added ``requiresInit`` pragma to enforce explicit initialization. +- Exported templates are allowed to access hidden fields. +- The ``using statement`` enables you to more easily author domain-specific + languages and libraries providing OOP-like syntactic sugar. +- Added the possibility to override various dot operators in order to handle + calls to missing procs and reads from undeclared fields at compile-time. +- The overload resolution now supports ``static[T]`` params that must be + evaluable at compile-time. +- Support for user-defined type classes has been added. +- The *command syntax* is supported in a lot more contexts. +- Anonymous iterators are now supported and iterators can capture variables + of an outer proc. +- The experimental ``strongSpaces`` parsing mode has been implemented. + + +Tools improvements +------------------ + +- c2nim can deal with a subset of C++. Use the ``--cpp`` command line option + to activate. 2014-02-11 Nimrod Featured in Dr. Dobb's Journal diff --git a/web/nimrod.ini b/web/nimrod.ini index 0ebc4b089..3160dc666 100644 --- a/web/nimrod.ini +++ b/web/nimrod.ini @@ -62,7 +62,8 @@ srcdoc2: "pure/ftpclient;pure/memfiles;pure/subexes;pure/collections/critbits" srcdoc2: "pure/asyncio;pure/actors;core/locks;pure/oids;pure/endians;pure/uri" srcdoc2: "pure/nimprof;pure/unittest;packages/docutils/highlite" srcdoc2: "packages/docutils/rst;packages/docutils/rstast" -srcdoc2: "packages/docutils/rstgen;pure/logging" +srcdoc2: "packages/docutils/rstgen;pure/logging;pure/asyncdispatch;pure/asyncnet" +srcdoc2: "pure/rawsockets;pure/asynchttpserver;pure/net" webdoc: "wrappers/libcurl;pure/md5;wrappers/mysql;wrappers/iup" webdoc: "wrappers/sqlite3;wrappers/postgres;wrappers/tinyc" |