SHM rework, stage 1
Petr Mrázek
parent
b3424418e6
commit
0192520d43
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Here's how you build dfhack!
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----------------------------
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First, there is one dependency, regardless of the OS you use:
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cmake - it's the build system
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Building on Linux:
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--------------------
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* To run in the output folder (without installing):
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building the library is simple. Enter the build folder, run the tools. Like this:
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cd build
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cmake .. -DCMAKE_BUILD_TYPE:string=Release
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make
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This will build the library and its tools and place them in /output.
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You can also use a cmake-friendly IDE like KDevelop 4 or the cmake GUI program.
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* To be installed into the system or packaged
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cd build
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cmake -DCMAKE_BUILD_TYPE:string=Release -DCMAKE_INSTALL_PREFIX=/usr -DMEMXML_DATA_PATH:path=/usr/share/dfhack ..
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make
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make install
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With this dfhack installs:
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library to $CMAKE_INSTALL_PREFIX/lib
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executables to $CMAKE_INSTALL_PREFIX/bin
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The Memory.xml file to /usr/share/dfhack
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See the section on the shared memory hook library (SHM).
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Building on Windows:
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--------------------
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You need cmake. Get the win32 installer version from the official site: http://www.cmake.org/cmake/resources/software.html
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It has the usual installer wizard thing.
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* Using mingw:
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You also need a compiler. I build dfhack using mingw. You can get it from the mingw site:
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Get the automated installer, it will download newest version of mingw and set things up nicely.
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You'll have to add C:\MinGW\ to your PATH variable.
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- Building:
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open up cmd and navigate to the dfhack\build folder, run cmake and the mingw version of make:
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cd build
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cmake .. -G"MinGW Makefiles" -DCMAKE_BUILD_TYPE:string=Release
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mingw32-make
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* Using MSVC
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open up cmd and navigate to the dfhack\build folder, run cmake:
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cd build
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cmake ..
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This will generate MSVC solution and project files. Note that: you are working in the /build folder.
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Files added to projects will end up there! (and that's wrong). Any changes to the build system should
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be done by changing cmake configs and running cmake on them!
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* Using some other compiler:
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I'm afraid you are on your own. dfhack wasn't tested with any other compiler.
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Try using a different cmake generator that's intended for your tools.
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Building the shared memory hook library (SHM)
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---------------------------------------------
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Unlike the rest of DFHack, The SHM needs special treatment when it comes to compilation.
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Because it shares the memory space with DF itself, it has to be built with the same tools as DF
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and use the same C and C++/STL libraries.
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For DF 40d15 - 40d17 on Windows, use MSVC 2008. You can get the Express edition for free from Microsoft.
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Windows dependencies can be determined by a tool like depends.exe (google it). Both the fake SDL.dll
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and DF have to use the same version of the C runtime (MSVCRT).
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The SHM can't be debugged, because debug builds in MSVC use a different CRT!
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Linux dependencies can be determined by setting the LD_DEBUG variable and running ./df:
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export LD_DEBUG=versions
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./df
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Example of (a part of a) relevant output from a working SHM installation:
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24472: checking for version `GLIBC_2.0' in file /opt/lib32/lib/libpthread.so.0 [0] required by file ./dwarfort.exe [0]
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24472: checking for version `GCC_3.0' in file ./libs/libgcc_s.so.1 [0] required by file ./dwarfort.exe [0]
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24472: checking for version `GLIBC_2.0' in file ./libs/libgcc_s.so.1 [0] required by file ./dwarfort.exe [0]
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24472: checking for version `GLIBC_2.1' in file /opt/lib32/lib/libm.so.6 [0] required by file ./dwarfort.exe [0]
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24472: checking for version `GLIBC_2.0' in file /opt/lib32/lib/libm.so.6 [0] required by file ./dwarfort.exe [0]
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24472: checking for version `GLIBC_2.1.3' in file /opt/lib32/lib/libc.so.6 [0] required by file ./dwarfort.exe [0]
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24472: checking for version `GLIBC_2.3.4' in file /opt/lib32/lib/libc.so.6 [0] required by file ./dwarfort.exe [0]
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24472: checking for version `GLIBC_2.4' in file /opt/lib32/lib/libc.so.6 [0] required by file ./dwarfort.exe [0]
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24472: checking for version `GLIBC_2.0' in file /opt/lib32/lib/libc.so.6 [0] required by file ./dwarfort.exe [0]
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24472: checking for version `GLIBCXX_3.4.9' in file ./libs/libstdc++.so.6 [0] required by file ./dwarfort.exe [0]
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24472: checking for version `CXXABI_1.3' in file ./libs/libstdc++.so.6 [0] required by file ./dwarfort.exe [0]
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24472: checking for version `GLIBCXX_3.4' in file ./libs/libstdc++.so.6 [0] required by file ./dwarfort.exe [0]
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24472: checking for version `CXXABI_1.3' in file ./libs/libstdc++.so.6 [0] required by file ./libs/libdfconnect.so [0]
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24472: checking for version `GLIBCXX_3.4' in file ./libs/libstdc++.so.6 [0] required by file ./libs/libdfconnect.so [0]
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24472: checking for version `GLIBC_2.1.3' in file /opt/lib32/lib/libc.so.6 [0] required by file ./libs/libdfconnect.so [0]
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24472: checking for version `GLIBC_2.2' in file /opt/lib32/lib/libc.so.6 [0] required by file ./libs/libdfconnect.so [0]
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24472: checking for version `GLIBC_2.3.4' in file /opt/lib32/lib/libc.so.6 [0] required by file ./libs/libdfconnect.so [0]
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24472: checking for version `GLIBC_2.0' in file /opt/lib32/lib/libc.so.6 [0] required by file ./libs/libdfconnect.so [0]
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libdfconnect is the SHM. Both are compiled against the same C++ library and share the same CXXABI version.
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Precompiled SHM libraries are provided in binary releases.
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* Checking strings support
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Strings are one of the important C++ types and a great indicator that the SHM works. Tools like Dwarf Therapist depend
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on string support. Reading of strings can be checked by running any of the tools that deal with materials.
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String writing is best tested with a fresh throw-away fort and dfrenamer. Embark, give one dwarf a very long name using dfrenamer
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and save/exit. If DF crashes during the save sequence, your SHM is not compatible with DF and the throw-away fort is lost.
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Build targets
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-------------
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dfhack has a few build targets. If you're only after the library run 'make dfhack'.
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'make' will build everything.
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'make expbench' will build the expbench throughput testing program and the library.
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Build types
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-----------
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cmake allows you to pick a build type by changing this variable: CMAKE_BUILD_TYPE
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cmake .. -DCMAKE_BUILD_TYPE:string=BUILD_TYPE
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Without specifying a build type or 'None', cmake uses the CMAKE_CXX_FLAGS variable for building.
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Valid build types include 'Release' and 'Debug'. There are others, but they aren't really that useful.
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Have fun.
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@ -1,174 +0,0 @@
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Introduction
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------------
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DFHack is a Dwarf Fortress memory access library and a set of basic tools using
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this library. The library is a work in progress, so things might change as more
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tools are written for it.
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It is an attempt to unite the various ways tools access DF memory and allow for
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easier development of new tools.
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Getting DFHack
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----------------
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The project is currently hosted on github:
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http://github.com/peterix/dfhack
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There's an SVN repository at sourceforge, but will only be updated for major releases:
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https://sourceforge.net/projects/dfhack/
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* subversion access:
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svn co https://dfhack.svn.sourceforge.net/svnroot/dfhack/trunk dfhack
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Compatibility
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-------------
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DFHack works on Windows XP, Vista, 7 or any modern Linux distribution.
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Windows 2000 is currently *not supported* due to missing OS functionality.
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If you know how to easily suspend processes, you can fix it :)
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OSX is also not supported due to lack of developers with a Mac.
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Currently supported Dwarf Fortress versions:
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* Windows
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40d
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40d9 - 40d18
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* Linux
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40d9 - 40d18
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Using the library
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-----------------
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The library is compilable under Linux with GCC and under Windows with MinGW32
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and MSVC compilers. It is using the cmake build system. See COMPILE for details.
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DFHack is using the zlib/libpng license. This makes it easy to link to it, use
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it in-source or add your own extensions. Contributing back to the dfhack
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repository is welcome and the right thing to do :)
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At the time of writing there's no API reference or documentation. The code does
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have a lot of comments though.
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Using DFHack Tools
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------------------
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The project comes with a special extra library you should add to your DF
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installation. It's used to boost the transfer speed between DF and DFHack, and
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provide data consistency and synchronization. DFHack will work without the
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library, but at suboptimal speeds and the consistency of data written back
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to DF is questionable.
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!!! on Windows this currently only works with DF 40d15 - 40d18 !!!
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On Linux, it works with the whole range of supported DF versions.
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!!! use the pre-compiled library intended for your OS and version of DF !!!
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You can find them in the 'precompiled' folder.
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** Installing on Windows
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- Open your DF folder, locate SDL.dll and rename it to SDLreal.dll (making
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a backup of it is a good idea)
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- Copy the right DFHack SDL.dll into your DF folder.
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- Restart DF if it is running
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** Unistalling on Windows
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- Open your DF folder, locate SDL.dll and delete it
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- Rename SDLreal.dll to SDL.dll
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- Restart DF if it is running
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** Installing on Linux
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- Open your DF folder and the libs folder within it
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- copy DFHack libdfconnect.so to the libs folder
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- copy the df startup script, name it dfhacked
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- open the new dfhacked startup script and add this line:
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export LD_PRELOAD="./libs/libdfconnect.so" # Hack DF!
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just before the line that launches DF
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Here's an example how the file can look after the change:
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#!/bin/sh
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DF_DIR=$(dirname "$0")
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cd "${DF_DIR}"
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export SDL_DISABLE_LOCK_KEYS=1 # Work around for bug in Debian/Ubuntu SDL patch.
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#export SDL_VIDEO_CENTERED=1 # Centre the screen. Messes up resizing.
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ldd dwarfort.exe | grep SDL_image | grep -qv "not found$"
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if [ $? -eq 0 ]; then
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mkdir unused_libs
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mv libs/libSDL* unused_libs/
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fi
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export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:"./libs" # Update library search path.
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export LD_PRELOAD="./libs/libdfconnect.so" # Hack DF!
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./dwarfort.exe $* # Go, go, go! :)
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- Use this new startup script to start DF
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** Uninstalling on Linux
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- Open your DF and DF/libs folders
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- Delete libdfconnect.so and the dfhacked startup script
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- Go back to using the df startup script
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Tools
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-----
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All the DFHack tools are terminal programs. This might seem strange to Windows
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users, but these are meant mostly as examples for developers. Still, they can
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be useful and are cross-platform just like the library itself.
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If the tool writes back to DF's memory, make sure you are using the shared
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memory interface mentioned in the previous section!
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* reveal - plain old reveal tool. It reveals all the map blocks already
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initialized by DF.
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* prospector - scans the map for minerals. by default it only scans only visible
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veins. You can make it show hidden things with '-a' and base rock
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and soil layers with '-b'. These can be combined ('-ab')
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* cleanmap - cleans mud, vomit, snow and all kinds of mess from the map.
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It will clean your irrigated farms too, so consider yourself
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warned.
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* incremental - incremental search utility.
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* bauxite - converts all mechanisms into bauxite mechanisms.
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* itemdesignator - Allows mass-designating items by type and material - dump,
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forbid, melt and set on fire ;)
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* digger - allows designating tiles for digging/cutting/ramp removal
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A list of accepted tile classes:
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1 = WALL
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2 = PILLAR
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3 = FORTIFICATION
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4 = STAIR_UP
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5 = STAIR_DOWN
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6 = STAIR_UPDOWN
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7 = RAMP
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8 = FLOOR
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9 = TREE_DEAD
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10 = TREE_OK
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11 = SAPLING_DEAD
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12 = SAPLING_OK
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13 = SHRUB_DEAD
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14 = SHRUB_OK
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15 = BOULDER
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16 = PEBBLES
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Example : dfdigger -o 100,100,15 -t 9,10 -m 10
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This will start looking for trees at coords 100,100,15 and designate ten of them for cutting.
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Memory offset definitions
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-------------------------
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The file with memory offset definitions used by dfhack can be found in the
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output folder.
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~ EOF ~
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@ -0,0 +1,274 @@
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/*
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www.sourceforge.net/projects/dfhack
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Copyright (c) 2009 Petr Mrázek (peterix)
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any
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damages arising from the use of this software.
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Permission is granted to anyone to use this software for any
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purpose, including commercial applications, and to alter it and
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redistribute it freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must
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not claim that you wrote the original software. If you use this
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software in a product, an acknowledgment in the product documentation
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would be appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and
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must not be misrepresented as being the original software.
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3. This notice may not be removed or altered from any source
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distribution.
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*/
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/**
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* This is the source for the DF <-> dfhack shm bridge's core module.
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*/
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#include <stdio.h>
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#include "../library/integers.h"
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#include <stdlib.h>
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#include <string.h>
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#include <string>
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#include <vector>
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#include "shms.h"
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enum DFPP_CmdType
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{
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CANCELLATION, // we should jump out of the Act()
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CLIENT_WAIT, // we are waiting for the client
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FUNCTION, // we call a function as a result of the command
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};
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struct DFPP_command
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{
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DFPP_CmdType type:32; // force the enum to 32 bits for compatibility reasons
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std::string name;
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void (*_function)(void);
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};
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struct DFPP_module
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{
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inline void push_command(DFPP_CmdType type, const char * name, void (*_function)(void))
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|
{
|
||||||
|
DFPP_command cmd;
|
||||||
|
cmd.type = type;
|
||||||
|
cmd.name = name;
|
||||||
|
cmd._function = _function;
|
||||||
|
commands.push_back(cmd);
|
||||||
|
}
|
||||||
|
inline void set_command(unsigned int index, DFPP_CmdType type, const char * name, void (*_function)(void))
|
||||||
|
{
|
||||||
|
DFPP_command cmd;
|
||||||
|
cmd.type = type;
|
||||||
|
cmd.name = name;
|
||||||
|
cmd._function = _function;
|
||||||
|
commands[index] = cmd;
|
||||||
|
}
|
||||||
|
inline void reserve (unsigned int numcommands)
|
||||||
|
{
|
||||||
|
commands.clear();
|
||||||
|
DFPP_command cmd = {CANCELLATION,"",0};
|
||||||
|
commands.resize(numcommands,cmd);
|
||||||
|
}
|
||||||
|
std::string name;
|
||||||
|
uint32_t version; // version
|
||||||
|
std::vector <DFPP_command> commands;
|
||||||
|
void * modulestate;
|
||||||
|
};
|
||||||
|
|
||||||
|
std::vector <DFPP_module> module_registry;
|
||||||
|
|
||||||
|
// various crud
|
||||||
|
extern int errorstate;
|
||||||
|
extern char *shm;
|
||||||
|
extern int shmid;
|
||||||
|
|
||||||
|
#define SHMHDR ((shm_header *)shm)
|
||||||
|
#define SHMCMD ((shm_cmd *)shm)->pingpong
|
||||||
|
|
||||||
|
void GetCoreVersion (void)
|
||||||
|
{
|
||||||
|
SHMHDR->value = module_registry[0].version;
|
||||||
|
full_barrier
|
||||||
|
SHMCMD = CORE_RET_VERSION;
|
||||||
|
}
|
||||||
|
|
||||||
|
void GetPID (void)
|
||||||
|
{
|
||||||
|
SHMHDR->value = OS_getPID();
|
||||||
|
full_barrier
|
||||||
|
SHMCMD = CORE_RET_PID;
|
||||||
|
}
|
||||||
|
|
||||||
|
void ReadRaw (void)
|
||||||
|
{
|
||||||
|
memcpy(shm + SHM_HEADER, (void *) SHMHDR->address,SHMHDR->length);
|
||||||
|
full_barrier
|
||||||
|
SHMCMD = CORE_RET_DATA;
|
||||||
|
}
|
||||||
|
|
||||||
|
void ReadDWord (void)
|
||||||
|
{
|
||||||
|
SHMHDR->value = *((uint32_t*) SHMHDR->address);
|
||||||
|
full_barrier
|
||||||
|
SHMCMD = CORE_RET_DWORD;
|
||||||
|
}
|
||||||
|
|
||||||
|
void ReadWord (void)
|
||||||
|
{
|
||||||
|
SHMHDR->value = *((uint16_t*) SHMHDR->address);
|
||||||
|
full_barrier
|
||||||
|
SHMCMD = CORE_RET_WORD;
|
||||||
|
}
|
||||||
|
|
||||||
|
void ReadByte (void)
|
||||||
|
{
|
||||||
|
SHMHDR->value = *((uint8_t*) SHMHDR->address);
|
||||||
|
full_barrier
|
||||||
|
SHMCMD = CORE_RET_BYTE;
|
||||||
|
}
|
||||||
|
|
||||||
|
void WriteRaw (void)
|
||||||
|
{
|
||||||
|
memcpy((void *)SHMHDR->address, shm + SHM_HEADER,SHMHDR->length);
|
||||||
|
full_barrier
|
||||||
|
SHMCMD = CORE_SUSPENDED;
|
||||||
|
}
|
||||||
|
|
||||||
|
void WriteDWord (void)
|
||||||
|
{
|
||||||
|
(*(uint32_t*)SHMHDR->address) = SHMHDR->value;
|
||||||
|
full_barrier
|
||||||
|
SHMCMD = CORE_SUSPENDED;
|
||||||
|
}
|
||||||
|
|
||||||
|
void WriteWord (void)
|
||||||
|
{
|
||||||
|
(*(uint16_t*)SHMHDR->address) = SHMHDR->value;
|
||||||
|
full_barrier
|
||||||
|
SHMCMD = CORE_SUSPENDED;
|
||||||
|
}
|
||||||
|
|
||||||
|
void WriteByte (void)
|
||||||
|
{
|
||||||
|
(*(uint8_t*)SHMHDR->address) = SHMHDR->value;
|
||||||
|
full_barrier
|
||||||
|
SHMCMD = CORE_SUSPENDED;
|
||||||
|
}
|
||||||
|
|
||||||
|
void ReadSTLString (void)
|
||||||
|
{
|
||||||
|
std::string * myStringPtr = (std::string *) SHMHDR->address;
|
||||||
|
unsigned int l = myStringPtr->length();
|
||||||
|
SHMHDR->value = l;
|
||||||
|
// there doesn't have to be a null terminator!
|
||||||
|
strncpy(shm+SHM_HEADER,myStringPtr->c_str(),l+1);
|
||||||
|
full_barrier
|
||||||
|
SHMCMD = CORE_RET_STRING;
|
||||||
|
}
|
||||||
|
|
||||||
|
void WriteSTLString (void)
|
||||||
|
{
|
||||||
|
std::string * myStringPtr = (std::string *) SHMHDR->address;
|
||||||
|
// here we DO expect a 0 terminator
|
||||||
|
myStringPtr->assign((const char *) (shm + SHM_HEADER));
|
||||||
|
full_barrier
|
||||||
|
SHMCMD = CORE_SUSPENDED;
|
||||||
|
}
|
||||||
|
|
||||||
|
void Suspend (void)
|
||||||
|
{
|
||||||
|
SHMCMD = CORE_SUSPENDED;
|
||||||
|
}
|
||||||
|
|
||||||
|
void InitCore(void)
|
||||||
|
{
|
||||||
|
DFPP_module core;
|
||||||
|
core.name = "Core";
|
||||||
|
core.version = CORE_VERSION;
|
||||||
|
core.modulestate = 0; // this one is dumb and has no real state
|
||||||
|
|
||||||
|
core.reserve(NUM_CORE_CMDS);
|
||||||
|
core.set_command(CORE_RUNNING, CANCELLATION, "Running", NULL);
|
||||||
|
|
||||||
|
core.set_command(CORE_GET_VERSION, FUNCTION,"Get core version",GetCoreVersion);
|
||||||
|
core.set_command(CORE_RET_VERSION, CLIENT_WAIT,"Core version return",0);
|
||||||
|
|
||||||
|
core.set_command(CORE_GET_PID, FUNCTION, "Get PID", GetPID);
|
||||||
|
core.set_command(CORE_RET_PID, CLIENT_WAIT, "PID return", 0);
|
||||||
|
|
||||||
|
core.set_command(CORE_DFPP_READ, FUNCTION,"Raw read",ReadRaw);
|
||||||
|
core.set_command(CORE_RET_DATA, CLIENT_WAIT,"Raw read return",0);
|
||||||
|
|
||||||
|
core.set_command(CORE_READ_DWORD, FUNCTION,"Read DWORD",ReadDWord);
|
||||||
|
core.set_command(CORE_RET_DWORD, CLIENT_WAIT,"Read DWORD return",0);
|
||||||
|
|
||||||
|
core.set_command(CORE_READ_WORD, FUNCTION,"Read WORD",ReadWord);
|
||||||
|
core.set_command(CORE_RET_WORD, CLIENT_WAIT,"Read WORD return",0);
|
||||||
|
|
||||||
|
core.set_command(CORE_READ_BYTE, FUNCTION,"Read BYTE",ReadByte);
|
||||||
|
core.set_command(CORE_RET_BYTE, CLIENT_WAIT,"Read BYTE return",0);
|
||||||
|
|
||||||
|
core.set_command(CORE_SV_ERROR, CANCELLATION, "Server error", 0);
|
||||||
|
core.set_command(CORE_CL_ERROR, CANCELLATION, "Client error", 0);
|
||||||
|
|
||||||
|
core.set_command(CORE_WRITE, FUNCTION, "Raw write", WriteRaw);
|
||||||
|
core.set_command(CORE_WRITE_DWORD, FUNCTION, "Write DWORD", WriteDWord);
|
||||||
|
core.set_command(CORE_WRITE_WORD, FUNCTION, "Write WORD", WriteWord);
|
||||||
|
core.set_command(CORE_WRITE_BYTE, FUNCTION, "Write BYTE", WriteByte);
|
||||||
|
|
||||||
|
core.set_command(CORE_SUSPEND, FUNCTION, "Suspend", Suspend);
|
||||||
|
core.set_command(CORE_SUSPENDED, CLIENT_WAIT, "Suspended", 0);
|
||||||
|
|
||||||
|
core.set_command(CORE_READ_STL_STRING, FUNCTION, "Read STL string", ReadSTLString);
|
||||||
|
core.set_command(CORE_READ_C_STRING, CLIENT_WAIT, "RESERVED", 0);
|
||||||
|
core.set_command(CORE_RET_STRING, CLIENT_WAIT, "Return string", 0);
|
||||||
|
core.set_command(CORE_WRITE_STL_STRING, FUNCTION, "Write STL string", WriteSTLString);
|
||||||
|
module_registry.push_back(core);
|
||||||
|
}
|
||||||
|
|
||||||
|
void InitModules (void)
|
||||||
|
{
|
||||||
|
// create the core module
|
||||||
|
InitCore();
|
||||||
|
}
|
||||||
|
|
||||||
|
void SHM_Act (void)
|
||||||
|
{
|
||||||
|
if(errorstate)
|
||||||
|
{
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
uint32_t numwaits = 0;
|
||||||
|
check_again: // goto target!!!
|
||||||
|
if(numwaits == 10000)
|
||||||
|
{
|
||||||
|
// this tests if there's a process on the other side
|
||||||
|
if(isValidSHM())
|
||||||
|
{
|
||||||
|
numwaits = 0;
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
full_barrier
|
||||||
|
SHMCMD = CORE_RUNNING;
|
||||||
|
fprintf(stderr,"dfhack: Broke out of loop, other process disappeared.\n");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
DFPP_module & mod = module_registry[((shm_cmd *)shm)->parts.module];
|
||||||
|
DFPP_command & cmd = mod.commands[((shm_cmd *)shm)->parts.command];
|
||||||
|
//fprintf(stderr, "Client invoked %s\n", cmd.name.c_str() );
|
||||||
|
if(cmd._function)
|
||||||
|
{
|
||||||
|
cmd._function();
|
||||||
|
}
|
||||||
|
if(cmd.type != CANCELLATION)
|
||||||
|
{
|
||||||
|
SCHED_YIELD
|
||||||
|
numwaits ++; // watchdog timeout
|
||||||
|
goto check_again;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
@ -1,187 +0,0 @@
|
|||||||
/*
|
|
||||||
www.sourceforge.net/projects/dfhack
|
|
||||||
Copyright (c) 2009 Petr Mrázek (peterix)
|
|
||||||
|
|
||||||
This software is provided 'as-is', without any express or implied
|
|
||||||
warranty. In no event will the authors be held liable for any
|
|
||||||
damages arising from the use of this software.
|
|
||||||
|
|
||||||
Permission is granted to anyone to use this software for any
|
|
||||||
purpose, including commercial applications, and to alter it and
|
|
||||||
redistribute it freely, subject to the following restrictions:
|
|
||||||
|
|
||||||
1. The origin of this software must not be misrepresented; you must
|
|
||||||
not claim that you wrote the original software. If you use this
|
|
||||||
software in a product, an acknowledgment in the product documentation
|
|
||||||
would be appreciated but is not required.
|
|
||||||
|
|
||||||
2. Altered source versions must be plainly marked as such, and
|
|
||||||
must not be misrepresented as being the original software.
|
|
||||||
|
|
||||||
3. This notice may not be removed or altered from any source
|
|
||||||
distribution.
|
|
||||||
*/
|
|
||||||
|
|
||||||
/**
|
|
||||||
* This is the source for the DF <-> dfhack shm bridge, server protocol part
|
|
||||||
*/
|
|
||||||
#include <stdio.h>
|
|
||||||
#include "../library/integers.h"
|
|
||||||
#include <stdlib.h>
|
|
||||||
#include <string.h>
|
|
||||||
#include <string>
|
|
||||||
//#include <unistd.h>
|
|
||||||
#include "shms.h"
|
|
||||||
// various crud
|
|
||||||
extern int errorstate;
|
|
||||||
extern char *shm;
|
|
||||||
extern int shmid;
|
|
||||||
|
|
||||||
void SHM_Act (void)
|
|
||||||
{
|
|
||||||
if(errorstate)
|
|
||||||
{
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
uint32_t numwaits = 0;
|
|
||||||
uint32_t length;
|
|
||||||
uint32_t address;
|
|
||||||
std::string * myStringPtr;
|
|
||||||
check_again: // goto target!!!
|
|
||||||
SCHED_YIELD // yield the CPU, valid only on single-core CPUs
|
|
||||||
if(numwaits == 10000)
|
|
||||||
{
|
|
||||||
// this tests if there's a process on the other side
|
|
||||||
if(isValidSHM())
|
|
||||||
{
|
|
||||||
numwaits = 0;
|
|
||||||
}
|
|
||||||
else
|
|
||||||
{
|
|
||||||
full_barrier
|
|
||||||
((shm_cmd *)shm)->pingpong = DFPP_RUNNING;
|
|
||||||
fprintf(stderr,"dfhack: Broke out of loop, other process disappeared.\n");
|
|
||||||
//MessageBox(0,"Broke out of loop, other process disappeared.","FUN", MB_OK);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
switch (((shm_cmd *)shm)->pingpong)
|
|
||||||
{
|
|
||||||
case DFPP_RET_VERSION:
|
|
||||||
case DFPP_RET_DATA:
|
|
||||||
case DFPP_RET_DWORD:
|
|
||||||
case DFPP_RET_WORD:
|
|
||||||
case DFPP_RET_BYTE:
|
|
||||||
case DFPP_RET_STRING:
|
|
||||||
case DFPP_SUSPENDED:
|
|
||||||
case DFPP_RET_PID:
|
|
||||||
case DFPP_SV_ERROR:
|
|
||||||
numwaits++;
|
|
||||||
goto check_again;
|
|
||||||
case DFPP_SUSPEND:
|
|
||||||
full_barrier
|
|
||||||
((shm_cmd *)shm)->pingpong = DFPP_SUSPENDED;
|
|
||||||
goto check_again;
|
|
||||||
/*
|
|
||||||
case DFPP_BOUNCE:
|
|
||||||
length = ((shm_bounce *)shm)->length;
|
|
||||||
memcpy(BigFat,shm + SHM_HEADER,length);
|
|
||||||
memcpy(shm + SHM_HEADER,BigFat,length);
|
|
||||||
((shm_cmd *)shm)->pingpong = DFPP_RET_DATA;
|
|
||||||
goto check_again;
|
|
||||||
*/
|
|
||||||
case DFPP_PID:
|
|
||||||
((shm_retval *)shm)->value = getPID();
|
|
||||||
full_barrier
|
|
||||||
((shm_retval *)shm)->pingpong = DFPP_RET_PID;
|
|
||||||
goto check_again;
|
|
||||||
|
|
||||||
case DFPP_VERSION:
|
|
||||||
((shm_retval *)shm)->value = PINGPONG_VERSION;
|
|
||||||
full_barrier
|
|
||||||
((shm_retval *)shm)->pingpong = DFPP_RET_VERSION;
|
|
||||||
goto check_again;
|
|
||||||
|
|
||||||
case DFPP_READ:
|
|
||||||
length = ((shm_read *)shm)->length;
|
|
||||||
address = ((shm_read *)shm)->address;
|
|
||||||
memcpy(shm + SHM_HEADER, (void *) address,length);
|
|
||||||
full_barrier
|
|
||||||
((shm_cmd *)shm)->pingpong = DFPP_RET_DATA;
|
|
||||||
goto check_again;
|
|
||||||
|
|
||||||
case DFPP_READ_DWORD:
|
|
||||||
address = ((shm_read_small *)shm)->address;
|
|
||||||
((shm_retval *)shm)->value = *((uint32_t*) address);
|
|
||||||
full_barrier
|
|
||||||
((shm_retval *)shm)->pingpong = DFPP_RET_DWORD;
|
|
||||||
goto check_again;
|
|
||||||
|
|
||||||
case DFPP_READ_WORD:
|
|
||||||
address = ((shm_read_small *)shm)->address;
|
|
||||||
((shm_retval *)shm)->value = *((uint16_t*) address);
|
|
||||||
full_barrier
|
|
||||||
((shm_retval *)shm)->pingpong = DFPP_RET_WORD;
|
|
||||||
goto check_again;
|
|
||||||
|
|
||||||
case DFPP_READ_BYTE:
|
|
||||||
address = ((shm_read_small *)shm)->address;
|
|
||||||
((shm_retval *)shm)->value = *((uint8_t*) address);
|
|
||||||
full_barrier
|
|
||||||
((shm_retval *)shm)->pingpong = DFPP_RET_BYTE;
|
|
||||||
goto check_again;
|
|
||||||
|
|
||||||
case DFPP_WRITE:
|
|
||||||
address = ((shm_write *)shm)->address;
|
|
||||||
length = ((shm_write *)shm)->length;
|
|
||||||
memcpy((void *)address, shm + SHM_HEADER,length);
|
|
||||||
full_barrier
|
|
||||||
((shm_cmd *)shm)->pingpong = DFPP_SUSPENDED;
|
|
||||||
goto check_again;
|
|
||||||
|
|
||||||
case DFPP_WRITE_DWORD:
|
|
||||||
(*(uint32_t*)((shm_write_small *)shm)->address) = ((shm_write_small *)shm)->value;
|
|
||||||
full_barrier
|
|
||||||
((shm_cmd *)shm)->pingpong = DFPP_SUSPENDED;
|
|
||||||
goto check_again;
|
|
||||||
|
|
||||||
case DFPP_WRITE_WORD:
|
|
||||||
(*(uint16_t*)((shm_write_small *)shm)->address) = ((shm_write_small *)shm)->value;
|
|
||||||
full_barrier
|
|
||||||
((shm_cmd *)shm)->pingpong = DFPP_SUSPENDED;
|
|
||||||
goto check_again;
|
|
||||||
|
|
||||||
case DFPP_WRITE_BYTE:
|
|
||||||
(*(uint8_t*)((shm_write_small *)shm)->address) = ((shm_write_small *)shm)->value;
|
|
||||||
full_barrier
|
|
||||||
((shm_cmd *)shm)->pingpong = DFPP_SUSPENDED;
|
|
||||||
goto check_again;
|
|
||||||
|
|
||||||
case DFPP_CL_ERROR:
|
|
||||||
case DFPP_RUNNING:
|
|
||||||
//fprintf(stderr, "no. of waits: %d\n", numwaits);
|
|
||||||
//MessageBox(0,"Broke out of loop properly","FUN", MB_OK);
|
|
||||||
break;
|
|
||||||
|
|
||||||
case DFPP_READ_STL_STRING:
|
|
||||||
myStringPtr = (std::string *) ((shm_read_small *)shm)->address;
|
|
||||||
((shm_retval *)shm)->value = myStringPtr->length();
|
|
||||||
strncpy(shm+SHM_HEADER,myStringPtr->c_str(),myStringPtr->length()+1);// length + 1 for the null terminator
|
|
||||||
full_barrier
|
|
||||||
((shm_retval *)shm)->pingpong = DFPP_RET_STRING;
|
|
||||||
goto check_again;
|
|
||||||
|
|
||||||
case DFPP_WRITE_STL_STRING:
|
|
||||||
myStringPtr = (std::string *) ((shm_write *)shm)->address;
|
|
||||||
myStringPtr->assign((const char *) (shm + SHM_HEADER));
|
|
||||||
full_barrier
|
|
||||||
((shm_cmd *)shm)->pingpong = DFPP_SUSPENDED;
|
|
||||||
goto check_again;
|
|
||||||
|
|
||||||
|
|
||||||
default:
|
|
||||||
((shm_retval *)shm)->value = DFEE_INVALID_COMMAND;
|
|
||||||
full_barrier
|
|
||||||
((shm_retval *)shm)->pingpong = DFPP_SV_ERROR;
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
Loading…
Reference in New Issue