1 files changed, 211 insertions, 0 deletions
diff --git a/java_jni/jni/jau/MachineDataInfoRuntime.cxx b/java_jni/jni/jau/MachineDataInfoRuntime.cxx
new file mode 100644
index 0000000..98ee97a
--- /dev/null
+++ b/java_jni/jni/jau/MachineDataInfoRuntime.cxx
@@ -0,0 +1,211 @@
+
+#include <jni.h>
+
+#include <assert.h>
+
+#include "jau_sys_MachineDataInfoRuntime.h"
+
+#include "jau/jni/helper_jni.hpp"
+
+#if defined(_WIN32)
+    #include <windows.h>
+#else /* assume POSIX sysconf() availability */
+    #include <unistd.h>
+#endif
+
+JNIEXPORT jint JNICALL 
+Java_jau_sys_MachineDataInfoRuntime_getPointerSizeInBytesImpl(JNIEnv *env, jclass _unused) {
+    (void)env;
+    (void)_unused;
+
+    return sizeof(void *);
+}
+
+JNIEXPORT jlong JNICALL 
+Java_jau_sys_MachineDataInfoRuntime_getPageSizeInBytesImpl(JNIEnv *env, jclass _unused) {
+    (void)env;
+    (void)_unused;
+
+#if defined(_WIN32)
+    SYSTEM_INFO si;
+    GetSystemInfo(&si);
+    return (jlong) si.dwPageSize;
+#else
+    return (jlong) sysconf(_SC_PAGESIZE);
+#endif
+}
+
+typedef struct { 
+    int8_t      c1;
+    int8_t      v;
+} struct_alignment_int8;
+
+typedef struct { 
+    int8_t      c1;
+    int16_t     v;
+} struct_alignment_int16;
+
+typedef struct { 
+    int8_t      c1;
+    int32_t      v;
+} struct_alignment_int32;
+
+typedef struct { 
+    int8_t      c1;
+    int64_t      v;
+} struct_alignment_int64;
+
+typedef struct { 
+    int8_t      c1;
+    int         v;
+} struct_alignment_int;
+
+typedef struct { 
+    int8_t      c1;
+    long        v;
+} struct_alignment_long;
+
+typedef struct { 
+    int8_t      c1;
+    void *     v;
+} struct_alignment_pointer;
+
+typedef struct { 
+    int8_t      c1;
+    float     v;
+} struct_alignment_float;
+
+typedef struct { 
+    int8_t      c1;
+    double     v;
+} struct_alignment_double;
+
+typedef struct { 
+    int8_t      c1;
+    long double     v;
+} struct_alignment_ldouble;
+
+// size_t padding(size_t totalsize, size_t typesize)   { return totalsize - typesize - sizeof(char); }
+// static size_t alignment(size_t totalsize, size_t typesize) { return totalsize - typesize; }
+#define ALIGNMENT(a, b) ( (a) - (b) )
+
+JNIEXPORT jint JNICALL 
+Java_jau_sys_MachineDataInfoRuntime_getAlignmentInt8Impl(JNIEnv *env, jclass _unused) {
+    (void)env;
+    (void)_unused;
+
+    return ALIGNMENT(sizeof( struct_alignment_int8 ), sizeof(int8_t));
+}
+
+JNIEXPORT jint JNICALL 
+Java_jau_sys_MachineDataInfoRuntime_getAlignmentInt16Impl(JNIEnv *env, jclass _unused) {
+    (void)env;
+    (void)_unused;
+
+    return ALIGNMENT(sizeof( struct_alignment_int16 ), sizeof(int16_t));
+}
+
+JNIEXPORT jint JNICALL 
+Java_jau_sys_MachineDataInfoRuntime_getAlignmentInt32Impl(JNIEnv *env, jclass _unused) {
+    (void)env;
+    (void)_unused;
+
+    return ALIGNMENT(sizeof( struct_alignment_int32 ), sizeof(int32_t));
+}
+
+JNIEXPORT jint JNICALL 
+Java_jau_sys_MachineDataInfoRuntime_getAlignmentInt64Impl(JNIEnv *env, jclass _unused) {
+    (void)env;
+    (void)_unused;
+
+    return ALIGNMENT(sizeof( struct_alignment_int64 ), sizeof(int64_t));
+}
+
+JNIEXPORT jint JNICALL 
+Java_jau_sys_MachineDataInfoRuntime_getAlignmentIntImpl(JNIEnv *env, jclass _unused) {
+    (void)env;
+    (void)_unused;
+
+    return ALIGNMENT(sizeof( struct_alignment_int ), sizeof(int));
+}
+
+JNIEXPORT jint JNICALL 
+Java_jau_sys_MachineDataInfoRuntime_getAlignmentLongImpl(JNIEnv *env, jclass _unused) {
+    (void)env;
+    (void)_unused;
+
+    return ALIGNMENT(sizeof( struct_alignment_long ), sizeof(long));
+}
+
+JNIEXPORT jint JNICALL 
+Java_jau_sys_MachineDataInfoRuntime_getAlignmentPointerImpl(JNIEnv *env, jclass _unused) {
+    (void)env;
+    (void)_unused;
+
+    return ALIGNMENT(sizeof( struct_alignment_pointer ), sizeof(void *));
+}
+
+JNIEXPORT jint JNICALL 
+Java_jau_sys_MachineDataInfoRuntime_getAlignmentFloatImpl(JNIEnv *env, jclass _unused) {
+    (void)env;
+    (void)_unused;
+
+    return ALIGNMENT(sizeof( struct_alignment_float ), sizeof(float));
+}
+
+JNIEXPORT jint JNICALL 
+Java_jau_sys_MachineDataInfoRuntime_getAlignmentDoubleImpl(JNIEnv *env, jclass _unused) {
+    (void)env;
+    (void)_unused;
+
+    return ALIGNMENT(sizeof( struct_alignment_double ), sizeof(double));
+}
+
+JNIEXPORT jint JNICALL 
+Java_jau_sys_MachineDataInfoRuntime_getAlignmentLongDoubleImpl(JNIEnv *env, jclass _unused) {
+    (void)env;
+    (void)_unused;
+
+    return ALIGNMENT(sizeof( struct_alignment_ldouble ), sizeof(long double));
+}
+
+JNIEXPORT jint JNICALL 
+Java_jau_sys_MachineDataInfoRuntime_getSizeOfIntImpl(JNIEnv *env, jclass _unused) {
+    (void)env;
+    (void)_unused;
+
+    return sizeof(int);
+}
+
+JNIEXPORT jint JNICALL 
+Java_jau_sys_MachineDataInfoRuntime_getSizeOfLongImpl(JNIEnv *env, jclass _unused) {
+    (void)env;
+    (void)_unused;
+
+    return sizeof(long);
+}
+
+JNIEXPORT jint JNICALL 
+Java_jau_sys_MachineDataInfoRuntime_getSizeOfFloatImpl(JNIEnv *env, jclass _unused) {
+    (void)env;
+    (void)_unused;
+
+    return sizeof(float);
+}
+
+JNIEXPORT jint JNICALL 
+Java_jau_sys_MachineDataInfoRuntime_getSizeOfDoubleImpl(JNIEnv *env, jclass _unused) {
+    (void)env;
+    (void)_unused;
+
+    return sizeof(double);
+}
+
+JNIEXPORT jint JNICALL 
+Java_jau_sys_MachineDataInfoRuntime_getSizeOfLongDoubleImpl(JNIEnv *env, jclass _unused) {
+    (void)env;
+    (void)_unused;
+
+    return sizeof(long double);
+}
+