sigar/bindings/java/src/jni/win32/util.c

#ifdef WIN32
#define UNICODE
#define _UNICODE

#include <pdh.h>
#include <pdhmsg.h>

#include "win32bindings.h"
#include "javasigar.h"

/**
 * Set of common utilities for all win32bindings objects
 */

#ifdef __cplusplus
extern "C" {
#endif

void win32_throw_exception(JNIEnv *env, char *msg)
{
    jclass exceptionClass = WIN32_FIND_CLASS("Win32Exception");
    JENV->ThrowNew(env, exceptionClass, msg);
}

JNIEXPORT jint SIGAR_JNI(win32_Win32_GetLastError)
(JNIEnv *env, jclass cls)
{
    return GetLastError();
}

JNIEXPORT jstring SIGAR_JNI(win32_Win32_GetErrorMessage)
(JNIEnv *env, jclass cls, jint error)
{
    LPTSTR msg;

    FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER|
                  FORMAT_MESSAGE_IGNORE_INSERTS|
                  FORMAT_MESSAGE_FROM_SYSTEM,
                  NULL, error, 
                  MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US),
                  (LPTSTR)&msg, 0, NULL);
    return JENV->NewString(env, (const jchar *)msg, lstrlen(msg));
}

#ifdef __cplusplus
}
#endif
#endif /* WIN32 */