diff options
Diffstat (limited to 'examples/demo/native')
-rw-r--r-- | examples/demo/native/CMakeLists.txt | 45 | ||||
-rw-r--r-- | examples/demo/native/main.c | 16 | ||||
-rw-r--r-- | examples/demo/native/org_example_jni_demo_Library__.h | 21 |
3 files changed, 82 insertions, 0 deletions
diff --git a/examples/demo/native/CMakeLists.txt b/examples/demo/native/CMakeLists.txt new file mode 100644 index 0000000..059a0dd --- /dev/null +++ b/examples/demo/native/CMakeLists.txt @@ -0,0 +1,45 @@ +cmake_minimum_required(VERSION 2.6) + +# Define project and related variables +# +project (demo) + +# Set versions and library name +# Note: major version will be appended to library name +# +set (VERSION_MAJOR 1) +set (VERSION_MINOR 2) +set (VERSION_PATCH 3) +set (LIB_NAME demo${VERSION_MAJOR}) + +# Command-line options +# +# required by sbt-jni to install binaries to correct places +set (LIB_INSTALL_DIR lib CACHE PATH "Path in which to install libraries (Autoconf equivalent to --libdir).") +# required by sbt-jni to disable versioned libraries +set (ENABLE_VERSIONED_LIB ON CACHE BOOLEAN "Generate versioned library files and symlinks.") + +# Setup JNI +find_package(JNI REQUIRED) +if (JNI_FOUND) + message (STATUS "JNI include directories: ${JNI_INCLUDE_DIRS}") +endif() + +# Include directories +include_directories(.) +include_directories(${JNI_INCLUDE_DIRS}) + +# Setup main shared library +# Note: major version is appended to library name +add_library(${LIB_NAME} SHARED main.c) +if (ENABLE_VERSIONED_LIB) + set_target_properties( + ${LIB_NAME} + PROPERTIES + VERSION 0.${VERSION_MINOR}.${VERSION_PATCH} # major version always 0, it is included in name + SOVERSION 0 + ) +endif() + +# Installation targets +install(TARGETS ${LIB_NAME} LIBRARY DESTINATION ${LIB_INSTALL_DIR}) diff --git a/examples/demo/native/main.c b/examples/demo/native/main.c new file mode 100644 index 0000000..5916c48 --- /dev/null +++ b/examples/demo/native/main.c @@ -0,0 +1,16 @@ +#include <stdio.h> +#include "org_example_jni_demo_Library__.h" + +/* + * Class: org_example_jni_demo_Library__ + * Method: print + * Signature: (Ljava/lang/String;)I + */ +JNIEXPORT jint JNICALL Java_org_example_jni_demo_Library_00024_print +(JNIEnv *env, jobject clazz, jstring message) { + const char* msg = (*env)->GetStringUTFChars(env, message, 0); + fprintf(stdout, "Printing from native library: %s", msg); + fflush(stdout); + (*env)->ReleaseStringUTFChars(env, message, msg); + return 0; +} diff --git a/examples/demo/native/org_example_jni_demo_Library__.h b/examples/demo/native/org_example_jni_demo_Library__.h new file mode 100644 index 0000000..06a7fa4 --- /dev/null +++ b/examples/demo/native/org_example_jni_demo_Library__.h @@ -0,0 +1,21 @@ +/* DO NOT EDIT THIS FILE - it is machine generated */ +#include <jni.h> +/* Header for class org_example_jni_demo_Library__ */ + +#ifndef _Included_org_example_jni_demo_Library__ +#define _Included_org_example_jni_demo_Library__ +#ifdef __cplusplus +extern "C" { +#endif +/* + * Class: org_example_jni_demo_Library__ + * Method: print + * Signature: (Ljava/lang/String;)I + */ +JNIEXPORT jint JNICALL Java_org_example_jni_demo_Library_00024_print + (JNIEnv *, jobject, jstring); + +#ifdef __cplusplus +} +#endif +#endif |