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#include <jni.h>
#include <cassert>
#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);
}
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