added install script & example

.dockerignore

@@ -0,0 +1 @@
+example/build/

Dockerfile

@@ -0,0 +1,5 @@
+from debian:buster-slim
+
+copy . .
+
+run ./install.sh

README.md

@@ -1,2 +1,4 @@
 # Fanuc FOCAS Library
-Header and runtime files for CNC communication
+Header and runtime files for CNC communication  
+
+An example of its use can be found in `example/`  

example/.dockerignore

@@ -0,0 +1 @@
+build/

example/.gitignore

@@ -0,0 +1 @@
+build/

example/CMakeLists.txt

@@ -0,0 +1,24 @@
+cmake_minimum_required(VERSION 3.13.4)
+project(AnotherFanucExample LANGUAGES C VERSION 0.1)
+
+add_subdirectory(src)
+
+set_target_properties(fanuc_example
+    PROPERTIES
+    ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib"
+    LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib"
+    RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/bin"
+)
+#add_executable(fanuc_example src/main.c)
+#target_link_libraries(fanuc_example m fwlib32 pthread)
+
+#LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+
+SET(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/libfolder")
+
+install (TARGETS fanuc_example
+  RUNTIME DESTINATION bin
+  LIBRARY DESTINATION bin
+  ARCHIVE DESTINATION lib
+  INCLUDES DESTINATION include
+  DESTINATION /usr/local/bin)

example/Dockerfile

@@ -0,0 +1,26 @@
+from debian:buster-slim as base
+
+workdir /tmp
+copy install.sh fwlib32.h libfwlib32* example/extra-deps.sh ./
+run ./install.sh && ./extra-deps.sh
+
+from base as builder
+
+run apt-get update && apt-get install -y \
+  build-essential \
+  cmake
+
+workdir /usr/src/app
+
+copy example/ .
+
+run mkdir build && \
+  cd build && \
+  cmake .. && \
+  make
+
+from base
+
+copy --from=builder /usr/src/app/build/bin/fanuc_example /usr/local/bin/
+
+cmd fanuc_example

example/README.md

@@ -0,0 +1,11 @@
+# Fanuc fwlib example
+An example that connects to a machine specified by MACHINE_IP & MACHINE_PORT in `main.c`  
+
+# Docker Instructions
+From the `example/` directory: `docker run --rm --network=host -it $(docker build -f Dockerfile ..)`  
+
+# Manual Instructions
+0. Install fwlib32 (`install.sh` may work)  
+1. `mkdir build && cd build`  
+2. `cmake ..`  
+3. `make`  

example/extra-deps.sh

@@ -0,0 +1,5 @@
+#!/bin/sh
+arch=$(arch)
+if [ "$arch" = "x86_64" ]; then
+  dpkg --add-architecture i386 && apt-get update && apt-get install -y gcc-multilib
+fi

example/src/CMakeLists.txt

@@ -0,0 +1,8 @@
+add_executable(fanuc_example main.c)
+
+#add_library(fwlib32 SHARED IMPORTED)
+#set_property(TARGET fwlib32 PROPERTY IMPORTED_LOCATION ${CMAKE_SOURCE_DIR}/lib/libfwlib32.so)
+
+set_target_properties(fanuc_example PROPERTIES COMPILE_FLAGS "-m32" LINK_FLAGS "-m32")
+
+target_link_libraries(fanuc_example m fwlib32 pthread)

example/src/main.c

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+#include <stdio.h>
+#include <stdlib.h>
+#include "fwlib32.h"
+#define MACHINE_IP "127.0.0.1"
+#define MACHINE_PORT 8193
+
+unsigned short libh;
+
+void cleanup() {
+  if (cnc_freelibhndl(libh) != EW_OK)
+    fprintf(stderr, "Failed to free library handle!\n");
+  cnc_exitprocess();
+}
+
+int main() {
+  unsigned long cncIDs[4];
+  char cncID[36];
+
+  if (cnc_startupprocess(0, "focas.log") != EW_OK) {
+    fprintf(stderr, "Failed to create required log file!\n");
+    exit(EXIT_FAILURE);
+    return 1;
+  }
+
+  printf("connecting to machine at %s:%d...\n", MACHINE_IP, MACHINE_PORT);
+  if (cnc_allclibhndl3(MACHINE_IP, MACHINE_PORT, 10, &libh) != EW_OK) {
+    fprintf(stderr, "Failed to connect to cnc!\n");
+    exit(EXIT_FAILURE);
+    return 1;
+  }
+  atexit(cleanup);
+
+  if (cnc_rdcncid(libh, cncIDs) != EW_OK) {
+    fprintf(stderr, "Failed to read cnc id!\n");
+    exit(EXIT_FAILURE);
+    return 1;
+  }
+
+  if (sizeof(long) == 4) {
+    sprintf(cncID, "%08lx-%08lx-%08lx-%08lx", cncIDs[0] & 0xffffffff,
+            cncIDs[1] & 0xffffffff, cncIDs[2] & 0xffffffff,
+            cncIDs[3] & 0xffffffff);
+  } else {
+    sprintf(cncID, "%08lx-%08lx-%08lx-%08lx", cncIDs[0] & 0xffffffff,
+            cncIDs[0] >> 32 & 0xffffffff, cncIDs[1] & 0xffffffff,
+            cncIDs[1] >> 32 & 0xffffffff);
+  }
+  printf("machine id: %s\n", cncID);
+
+  exit(EXIT_SUCCESS);
+}

install.sh

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+#!/bin/sh
+version=1.0.5
+platform=linux
+arch=$(arch)
+base="$(dirname "$(realpath "$0")")"
+if [ "$arch" = "x86_64" ] || [ "$arch" = "x86" ]; then
+  arch=x86
+elif [ "$arch" = "armv7l" ]; then
+  arch=armv7
+else
+  echo "unsupported arch"
+  exit 1
+fi
+cp fwlib32.h /usr/include/
+cp "$base/libfwlib32-$platform-$arch.so.$version" "/usr/local/lib/libfwlib32.so.$version"
+ln -sf /usr/local/lib/libfwlib32.so.$version /usr/local/lib/libfwlib32.so
+ldconfig