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| author | schmidt <douglascraigschmidt@users.noreply.github.com> | 2004-06-17 14:46:14 +0000 |
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| committer | schmidt <douglascraigschmidt@users.noreply.github.com> | 2004-06-17 14:46:14 +0000 |
| commit | e9e7f09b471da1620a9c3fd59d1f32207a07f0c6 (patch) | |
| tree | 27911823fc99f8968e55e2fee698cd20f1ed560f /docs | |
| parent | 3528930a5ff2505c2599d42b4963ff46b0c64cbd (diff) | |
| download | ATCD-e9e7f09b471da1620a9c3fd59d1f32207a07f0c6.tar.gz | |
ChangeLogTag:Thu Jun 17 09:43:49 2004 Douglas C. Schmidt <schmidt@cs.wustl.edu>
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/ACE-porting.html | 154 |
1 files changed, 82 insertions, 72 deletions
diff --git a/docs/ACE-porting.html b/docs/ACE-porting.html index 4057fba848a..95f58c11845 100644 --- a/docs/ACE-porting.html +++ b/docs/ACE-porting.html @@ -11,57 +11,70 @@ </HEAD> <BODY TEXT="#000000" BGCOLOR="#FFFFFF" LINK="#0000FF" VLINK="#FF0000"> -<HR><P> -<H3>Porting ACE and TAO to a New OS Platform</H3><P> - -The <A HREF="http://www.cs.wustl.edu/~schmidt/ACE.html">ACE</A> -framework and the <A -HREF="http://www.cs.wustl.edu/~schmidt/TAO.html">TAO</A> ORB have been -ported to <A -HREF="http://www.cs.wustl.edu/~schmidt/ACE-versions-i.html">many OS -platforms</A>. Porting ACE and TAO to new platforms is fairly easy. -The following document describes the step-by-step process to use when -porting the various <A +<HR><P> <H3>Porting ACE, TAO, and CIAO to a New OS Platform</H3><P> + +<A HREF="http://www.cs.wustl.edu/~schmidt/ACE.html">ACE</A>, <A +HREF="http://www.cs.wustl.edu/~schmidt/TAO.html">TAO</A>, and <A +HREF="http://www.cs.wustl.edu/~schmidt/CIAO.html">CIAO</A> have been +ported to <A HREF="http://www.dre.vanderbilt.edu/versions.html">many +OS platforms</A>. Porting ACE, TAO, and CIAO to new platforms is +fairly easy. The following document describes the step-by-step +process to use when porting the various <A HREF="http://www.cs.wustl.edu/~schmidt/ACE-overview.html">components and layers</A> in ACE to a new OS platform. Once ACE is ported, it is -straightforward to port TAO, as well.<P> +straightforward to port TAO and CIAO, as well.<P> + +Before starting a port that you plan to contribute back to the +ACE+TAO+CIAO open-source community, we recommend that you do the +following: + +<UL> +<LI> Read and follow the <A HREF="ACE-guidelines.html">programming style + guidelines</A> we use when writing ACE, TAO, and CIAO code, + which will make it much easier to integrate and maintain your port + in the source tree. <P> + +<LI> Contact <A HREF="mailto:d.schmidt@vanderbilt.edu">Douglas + C. Schmidt</A> and let him know that you're planning to contribute + a port, which will make it make easier to work out the logistics + of when/how the port will be integrated. <P> +</UL> <hr align=left width="50%"><P> <H4>Create a <CODE>config.h</CODE> Header File for the Target OS Platform</H4> A <CODE>config-*.h</CODE> header file exists in <A -HREF="../ace/">$ACE_ROOT/ace</A> -for each platform to which ACE has been ported. This file contains -the portability macros for each particular configuration of ACE. A -complete description of the existent macros can be found in the <A -HREF="../ace/README">$ACE_ROOT/ace/README</A> -file. <P> +HREF="../ace/">$ACE_ROOT/ace</A> for each platform to which ACE has +been ported. This file contains the portability macros for each +particular configuration of ACE. A complete description of the +existent macros can be found in the <A +HREF="../ace/README">$ACE_ROOT/ace/README</A> file. <P> Currently, you must edit this file by hand to port it to new OS -platforms. It's a good idea to use the <CODE>config-*.h</CODE> files -for platforms with similar characteristics as examples. Ultimately, -we plan to <A HREF="http://www.cs.wustl.edu/~othman/aceconf">auto -configure</A> these files. <P> +platforms, though on some platforms it's possible to use the ACE <A +HREF="../configure.ac">autoconf script</A>. It's a good idea to use +the <CODE>config-*.h</CODE> files for platforms with similar +characteristics as examples. <hr align=left width="50%"><P> <H4>Port the <CODE>ACE_OS</CODE> Namespace</H4> -The <CODE>ACE_OS</CODE> namespace encapsulates most of variation between -the different OS implementations, <EM>e.g.</EM>, UNIX, Win32, and -various real-time operating systems. It is the core of the ACE -OS abstraction layer. Most work required to port ACE to a new OS -platform resides in this namespace. There are <EM>many</EM> examples of -how ACE has been ported to other operating systems in the +The <CODE>ACE_OS</CODE> namespace encapsulates most of variation +between the different OS implementations, <EM>e.g.</EM>, UNIX, Win32, +and various real-time operating systems. It is the core of the ACE OS +abstraction layer. Most work required to port ACE to a new OS +platform resides in this namespace. There are <EM>many</EM> examples +of how ACE has been ported to other operating systems in the <CODE>ACE_OS</CODE> class in the <CODE>$ACE_ROOT/ace/OS_NS_*.{h,inl,cpp}</CODE> files. <P> Optional features in pthreads are covered by <CODE>ACE_HAS_*</CODE> and/or <CODE>ACE_LACKS_*</CODE> macros, which are described in the <A -HREF="../ace/README">$ACE_ROOT/ace/README</A> -file. Particular platform features, such as DCE pthreads calls that -end in <CODE>_np</CODE>, should be bracketed by platform defines -rather than by inventing more <CODE>ACE_HAS_*</CODE> or -<CODE>ACE_LACKS_*</CODE> definitions. <P> +HREF="../ace/README">$ACE_ROOT/ace/README</A> file. Particular +platform features, such as DCE pthreads calls that end in +<CODE>_np</CODE>, should be bracketed by platform defines rather than +by inventing more <CODE>ACE_HAS_*</CODE> or <CODE>ACE_LACKS_*</CODE> +definitions. <P> An important part of porting ACE to a new platform is to map the threading API correctly. Currently, ACE has support for the following @@ -77,6 +90,7 @@ thread APIs: <P> <LI> <B>Win32 Threads</B> (<CODE>ACE_HAS_WTHREADS</CODE>) - Windows NT, Windows '95/98, and Windows CE <P> + <LI> <B>VxWorks Tasks</B> (<CODE>VXWORKS</CODE>) - VxWorks <P> </UL> @@ -84,45 +98,46 @@ If your OS platform does not support any of these threading packages, you must port the <CODE>ACE_OS::thr_*</CODE> functions. <P> <hr align=left width="50%"><P> -<H4>Port the C++ Wrapper Components</H4> - -After porting the <CODE>ACE_OS</CODE> namespace, the next step is to port -all of the ACE C++ wrapper components, such as sockets, threads, -synchronization mechanisms. A full list of the categories and classes -can be found in the <A -HREF="ACE-categories.html">$ACE_ROOT/ACE-categories</a> -file. It is easiest to concentrate on porting one category at the -time. The ACE release contain a <A HREF="../tests/README">one-button -test suite</A> in the <A HREF="../tests/">$ACE_ROOT/tests/</A> -directory. These tests can be used to validate the correctness of the -various ACE C++ wrappers as they are ported. <P> +<H4>Port the C++ Wrapper Facade Components</H4> + +After porting the <CODE>ACE_OS</CODE> namespace, the next step is to +port all of the ACE C++ wrapper facade components, such as sockets, +threads, synchronization mechanisms. A full list of the categories +and classes can be found in the <A +HREF="ACE-categories.html">$ACE_ROOT/ACE-categories</a> file. It is +easiest to concentrate on porting one category at the time. The ACE +release contain a <A HREF="../tests/README">regression test suite</A> +in the <A HREF="../tests/">$ACE_ROOT/tests/</A> directory. These +tests can be used to validate the correctness of the various ACE C++ +wrapper facades as they are ported. <P> <hr align=left width="50%"><P> <H4>Port the Higher-level Framework Components of ACE</H4> Having ported (and tested) all the components of the ACE OS adaptation -layer and C++ wrappers, you can proceed to port the higher level -components of ACE, such as the Reactor, Service Configurator, +layer and C++ wrapper facades, you can proceed to port the higher +level components of ACE, such as the Reactor, Service Configurator, Connector, Acceptor, and Streams frameworks. At this point, it should be relatively easy to port the rest of ACE because most of the platform-dependent code is localized in the lower layers of ACE. <P> <hr align=left width="50%"><P> -<H4>Port TAO</H4> +<H4>Port TAO and CIAO</H4> After porting and successfully testing all the ACE framework -components, it also should be relatively easy to port and <A -HREF="../TAO/TAO-INSTALL.html">install</A> -TAO because all of its platform-dependent code is localized in ACE. -Typically, the only problems that arise when porting TAO is bugs with -C++ compilers. <P> +components, it should be straightforward to port and <A +HREF="../TAO/TAO-INSTALL.html">install</A> TAO and <A +HREF="../TAO/CIAO/CIAO-INSTALL.html">install</A> CIAO because the bulk +of their platform-dependent code is localized in ACE. Typically, the +only problems that arise when porting TAO and CIAO is bugs and +limitations with C++ compilers. <P> <HR><P> -<H3>C++ Features Required to Port ACE and TAO</H3> +<H3>C++ Features Required to Port ACE, TAO, and CIAO</H3> -ACE and TAO have been ported to most C++ compilers. The following is -a list of which C++ features a compiler must support in order to -compile ACE and TAO: +ACE, TAO, and CIAO have been ported to most C++ compilers. The +following is a list of which C++ features a compiler must support in +order to compile ACE and TAO: <UL> <LI> <B>Templates</B> -- The C++ compiler must support templates. @@ -136,12 +151,12 @@ compile ACE and TAO: <LI> <B>Namespaces</B> -- ACE utilizes C++ namespaces, so the C++ compiler must support them.<P> -<LI> <B>ANSI casts</B> -- ACE uses the new ANSI C++ casts, so the C++ compiler - must support them.<P> +<LI> <B>ANSI casts and RTTI</B> -- ACE uses the new ANSI C++ casts, so the C++ compiler + must support them, which implies support for RTTI.<P> </UL> -The following is a list of which C++ features that ACE and TAO can +The following is a list of which C++ features that ACE, TAO, CIAO can take advantage of if a compiler supports them: <UL> @@ -153,25 +168,20 @@ take advantage of if a compiler supports them: TAO can be configured to use C++ exceptions if ACE supports them, <EM>i.e.</EM>, if <CODE>ACE_HAS_EXCEPTIONS</CODE> is defined. <P> -<LI> <B>RTTI</B> -- If the OS platform supports RTTI - <EM>i.e.</EM>, <CODE>ACE_LACKS_RTTI</CODE> is not - enabled, then the various <CODE>ACE_dynamic_cast_*</CODE> macros will - utilize the ANSI dynamic_cast. Otherwise, the macros will default to - ANSI static_casts. <P> - <LI> <B>STL</B> -- Unfortunately many of the platforms that ACE supports don't have an STL library. Moreover, different versions - of STL behave differently. Therefore, ACE does not depends on - STL and does not use it internally. - If your target platform(s) support STL you should be able to - use it with ACE and TAO without problems, though your C++ + of STL behave differently. ACE therefore does not depends on + STL and does not use it internally. If your target + platform(s) support STL you should be able to + use it with ACE, TAO, and CIAO without problems, though your C++ compiler may have problems with it (this is beyond the scope of ACE, however). <P> If you are considering STL, you might consider <A HREF="http://www.stlport.org/">STLport</a>, - which is a port of the SGI STL to numerous platforms that ACE - and TAO also support. <P> + which is a port of the SGI STL to numerous platforms that ACE, + TAO, and CIAO also support. <P> + </UL> <P><HR><P> |