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add pdhConnectMachine

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This commit is contained in:
Doug MacEachern 2005-03-30 00:59:45 +00:00
parent 02f67cbd73
commit 15053e98ac
2 changed files with 26 additions and 1 deletions
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20
bindings/java/src/jni/win32/pdh.c
View File

@ -9,6 +9,10 @@
extern "C" {
#endif
#ifndef PDH_ACCESS_DENIED
#define PDH_ACCESS_DENIED ((DWORD)0xC0000BDBL)
#endif
/**
* Hack around not being able to format error codes using
* FORMAT_MESSAGE_FROM_HMODULE. We only define the error
@ -38,11 +42,27 @@ static char *get_error_message(PDH_STATUS status) {
case PDH_FUNCTION_NOT_FOUND:
return "The calculation function for this counter could not "
"be determined";
case PDH_ACCESS_DENIED:
return "Access denied";
default:
return "Unknown error";
}
}
JNIEXPORT void SIGAR_JNI(win32_Pdh_pdhConnectMachine)
(JNIEnv *env, jobject cur, jstring jhost)
{
PDH_STATUS status;
LPCTSTR host = JENV->GetStringUTFChars(env, jhost, NULL);
status = PdhConnectMachine(host);
JENV->ReleaseStringUTFChars(env, jhost, host);
if (status != ERROR_SUCCESS) {
win32_throw_exception(env, get_error_message(status));
}
}
JNIEXPORT jlong JNICALL SIGAR_JNI(win32_Pdh_pdhOpenQuery)
(JNIEnv *env, jobject cur)
{

7
bindings/java/src/net/hyperic/sigar/win32/Pdh.java
View File

@ -6,7 +6,7 @@ import java.util.List;
public class Pdh extends Win32Bindings {
private long h_query; // Handle to the query
private String hostname; // Not yet supported
private String hostname = null;
private String counterPath;
private long h_counter = -1l; // Handle to the counter
@ -41,6 +41,9 @@ public class Pdh extends Win32Bindings {
}
public double getSingleValue(String cp) throws Win32Exception {
if (this.hostname != null) {
pdhConnectMachine(this.hostname);
}
setCounterPath(cp);
return getSingleValue();
}
@ -76,6 +79,8 @@ public class Pdh extends Win32Bindings {
this.counterPath = cp;
}
private static final native void pdhConnectMachine(String host)
throws Win32Exception;
private static final native long pdhOpenQuery() throws Win32Exception;
private static final native void pdhCloseQuery(long query)
throws Win32Exception;