mirrors/cdt
1
0
Fork 0
mirror of https://github.com/eclipse-cdt/cdt synced 2025-07-01 06:05:24 +02:00
Code Issues Wiki Activity

Make the Windows registry code a little more robust.

Browse source
This commit is contained in:
Doug Schaefer 2006-04-03 14:12:04 +00:00
parent 3df6744baa
commit 0c247b1d5f
4 changed files with 24 additions and 27 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
core/org.eclipse.cdt.core.tests/misc/org/eclipse/cdt/core/winreg/tests/WinRegTests.java
View file

@ -20,4 +20,16 @@ public class WinRegTests extends TestCase {
}
}
public void test2() {
WindowsRegistry registry = WindowsRegistry.getRegistry();
if (Platform.getOS().equals(Platform.OS_WIN32)) {
assertNotNull(registry);
String value = registry.getLocalMachineValue("SOFTWARE\\Microsoft\\Windows\\CurrentVersion", "Nothing");
// Not sure how you set this to anything else so it seems safe.
assertNull(value);
} else {
// Should be null on non-Windows platforms
assertNotNull(registry);
}
}
}

31
core/org.eclipse.cdt.core.win32/library/winreg.cpp
View file

@ -2,48 +2,25 @@
#include <jni.h>
#include <string.h>
jstring getErrorMsg(JNIEnv * env, wchar_t * name) {
wchar_t msg[256];
wchar_t * msgBuff;
DWORD err = GetLastError();
FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
NULL,
err,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR) &msgBuff,
0, NULL );
wsprintf(msg, L"%s failed with error %d: %s", name, err, msgBuff);
LocalFree(msgBuff);
return env->NewString((jchar *)msg, wcslen(msg));
}
extern "C"
JNIEXPORT jstring Java_org_eclipse_cdt_utils_WindowsRegistry_getLocalMachineValue(
JNIEnv * env, jobject obj, jstring subkey, jstring name)
{
const jchar * csubkey = env->GetStringChars(subkey, NULL);
const jchar * cname = env->GetStringChars(name, NULL);
jstring result;
jstring result = NULL;
HKEY key;
LONG rc = RegOpenKeyEx(HKEY_LOCAL_MACHINE, (const wchar_t *)csubkey, 0, KEY_READ, &key);
if (rc != ERROR_SUCCESS) {
result = getErrorMsg(env, L"RegOpenKeyEx");
} else {
if (rc == ERROR_SUCCESS) {
DWORD type;
wchar_t buffer[256];
DWORD len = sizeof(buffer);
rc = RegQueryValueEx(key, (const wchar_t *)cname, NULL, &type, (BYTE *)&buffer, &len);
if (rc != ERROR_SUCCESS) {
result = getErrorMsg(env, L"RegQueryValueEx");
} else {
if (rc == ERROR_SUCCESS) {
result = env->NewString((jchar *)buffer, wcslen(buffer));
}
RegCloseKey(key);
}
env->ReleaseStringChars(subkey, csubkey);

BIN
core/org.eclipse.cdt.core.win32/os/win32/x86/winreg.dll
View file

Binary file not shown.

8
core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/WindowsRegistry.java
View file

@ -34,6 +34,14 @@ public class WindowsRegistry {
return registry;
}
/**
* Gets the registry value for the subkey of HKEY_LOCAL_MACHINE with the
* given name. If problems occur, like the name is not found, null is returned.
*
* @param subkey subkey of HKEY_LOCAL_MACHINE
* @param name name of the registry value
* @return registry value or null if not found
*/
public native String getLocalMachineValue(String subkey, String name);
}