Regqueryvalueex failed error 234

regqueryvalueex failed error 234

, Restore in Progress Message for Disk Library Exchange Archiver changed from , Failed to get Data Protection Window Utilization Report for. main VIEWWINCLIENT: RegQueryValueEx(LowLevelHooksTimeout) failed: The TZ In(05) main - Error (More data is. The registry API RegQueryValueEx rarely fails with windows error (More data is available) even if the buffer is large enough to hold the value of the. regqueryvalueex failed error 234

New day: Regqueryvalueex failed error 234

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Errormore data is available, with RegQueryInfoKey and RegEnumValue

I am trying to use to get the longest value and data┬┤s size and then to show all the values, but I am getting the error value, which means "More data is available" when I run the app, regqueryvalueex failed error 234.

I am also using to allocate and so I can use the sizes that gave me.

If i set tofor example, regqueryvalueex failed error 234, the app works just fine, but it no idea why it doesn't with the value returned by .

The registry key has two string values: HKCU\WinSide string values

What am I doing wrong? Apologize for all the noob errors you might see. Here is my code:

This is my result:


Thanks a lot!

asked Aug 23, at

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Sergio CalderonSergio Calderon

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thread->thread_state() == _thread_in_native FORMAT_MESSAGE_IGNORE_INSERTS, NULL, errval, 0, buf, (DWORD)len, NULL); if (n > 3) { // Drop final '.', CR, LF if (buf[n - 1] == '\n') n--; if (buf[n - 1] == '\r') n--; if (buf[n - 1] == '.') n--; buf[n] = '\0'; } return n; } if (errno != 0) { // C runtime error that has no corresponding DOS error code const char* s = os::strerror(errno); size_t n = strlen(s); if (n >= len) n = len - 1; strncpy(buf, s, regqueryvalueex failed error 234, n); buf[n] = '\0'; return n; } return 0; } int os::get_last_error() { DWORD error = GetLastError(); if (error == 0) { error = errno; } return (int)error; } // // NOTE that this is a workaround for an apparent kernel bug where if // a signal handler for SIGBREAK is installed then that signal handler // takes priority over the console control handler for CTRL_CLOSE_EVENT. // See bug static void (*sigbreakHandler)(int) = NULL; static void UserHandler(int sig, void *siginfo, void *context) { os::signal_notify(sig); // We need to reinstate the signal handler each time os::signal(sig, (void*)UserHandler); } void* os::user_handler() { return (void*) UserHandler; } void* os::signal(int signal_number, void* handler) { if ((signal_number == SIGBREAK) && (!ReduceSignalUsage)) { void (*oldHandler)(int) = sigbreakHandler; sigbreakHandler = (void (*)(int)) handler; return (void*) oldHandler; } else { return (void*)::signal(signal_number, (void (*)(int))handler); } } void os::signal_raise(int signal_number) { raise(signal_number); } // The Win32 C runtime library maps all console control events other than ^C // into SIGBREAK, which makes it impossible to distinguish ^BREAK from close, // logoff, and shutdown events. We therefore install our own console handler // that raises SIGTERM for the latter cases. // static BOOL WINAPI consoleHandler(DWORD event) { switch (event) { case CTRL_C_EVENT: if (VMError::is_error_reported()) { // Ctrl-C is pressed during error reporting, likely because the error // handler fails to abort. Let VM die immediately. os::die(); } os::signal_raise(SIGINT); return TRUE; break; case CTRL_BREAK_EVENT: if (sigbreakHandler != NULL) { (*sigbreakHandler)(SIGBREAK); } return TRUE; break; case CTRL_LOGOFF_EVENT: { // Don't terminate JVM if it is running in a non-interactive session, // such as a service process. USEROBJECTFLAGS flags; HANDLE handle = GetProcessWindowStation(); if (handle != NULL 3108 error iphone GetUserObjectInformation(handle, UOI_FLAGS, &flags, sizeof(USEROBJECTFLAGS), NULL)) { // If it is a non-interactive session, let next handler to deal // with it. if (( & WSF_VISIBLE) == 0) { return FALSE; } } } case CTRL_CLOSE_EVENT: case CTRL_SHUTDOWN_EVENT: os::signal_raise(SIGTERM); return TRUE; break; default: break; } return FALSE; runtime error world of tanks // The following code is moved from regqueryvalueex failed error 234 for making this // code platform specific, which it is by its very nature. // Return maximum OS signal used + 1 for internal use only // Used as exit signal for signal_thread int os::sigexitnum_pd() { return NSIG; } // a counter for each possible signal value, including signal_thread exit signal static volatile jint pending_signals[NSIG+1] = { 0 }; static Semaphore* sig_sem = NULL; static void jdk_misc_signal_init() { // Initialize signal structures memset((void*)pending_signals, 0, sizeof(pending_signals)); // Initialize signal semaphore sig_sem = new Semaphore(); // Programs embedding the VM regqueryvalueex failed error 234 not want it to attempt to receive // events like CTRL_LOGOFF_EVENT, which are used to implement the // shutdown hooks mechanism introduced in For example, when // the VM is run as part of a Windows NT service (i.e., a servlet // engine in regqueryvalueex failed error 234 web server), the correct behavior is for any console // control handler to return FALSE, not TRUE, because the OS's // "final" handler for such events allows the process to continue if // it is a service (while terminating it if it is not a service). // To make this behavior uniform and the mechanism simpler, we // completely disable the VM's usage of these console events if -Xrs // (=ReduceSignalUsage) is specified. This means, for example, that // the CTRL-BREAK thread dump mechanism is also disabled in this // case. See bugs, and related bugs. // Add a CTRL-C handler SetConsoleCtrlHandler(consoleHandler, TRUE); } void os::signal_notify(int sig) { if (sig_sem != NULL) { Atomic::inc(&pending_signals[sig]); sig_sem->signal(); } else { // Signal thread is not created with ReduceSignalUsage and jdk_misc_signal_init // initialization isn't called. assert(ReduceSignalUsage, regqueryvalueex failed error 234, "signal semaphore should be created"); } } static int check_pending_signals() { while (true) { for (int i = 0; i < NSIG + 1; i++) { jint n = pending_signals[i]; if (n > 0 && n == Atomic::cmpxchg(n - 1, &pending_signals[i], n)) { return i; } } JavaThread *thread = JavaThread::current(); ThreadBlockInVM tbivm(thread); bool threadIsSuspended; do { thread->set_suspend_equivalent(); // cleared by handle_special_suspend_equivalent_condition() or java_suspend_self() sig_sem->wait(); // were we externally suspended while we were waiting? threadIsSuspended = thread->handle_special_suspend_equivalent_condition(); if (threadIsSuspended) { // The semaphore has been incremented, but while we were waiting // another thread suspended us. We don't want to continue running // while suspended because that would surprise the thread that award c1 error suspended us. sig_sem->signal(); thread->java_suspend_self(); } } while (threadIsSuspended); } } int os::signal_wait() { return check_pending_signals(); } // Implicit OS exception handling LONG Handle_Exception(struct _EXCEPTION_POINTERS* exceptionInfo, address handler) { JavaThread* thread = (JavaThread*) Thread::current_or_null(); // Save pc in thread #ifdef _M_AMD64 // Do not blow up if no thread info available. if (thread) { thread->set_saved_exception_pc((address)(DWORD_PTR)exceptionInfo->ContextRecord->Rip); } // Set pc to handler exceptionInfo->ContextRecord->Rip = (DWORD64)handler; #else // Do not blow up if no thread info fix system configuration data updated error. if (thread) { thread->set_saved_exception_pc((address)(DWORD_PTR)exceptionInfo->ContextRecord->Eip); } // Set pc to handler exceptionInfo->ContextRecord->Eip = (DWORD)(DWORD_PTR)handler; #endif // Continue the execution return EXCEPTION_CONTINUE_EXECUTION; } // Used for PostMortemDump extern "C" void safepoints(); extern "C" void find(int x); extern "C" void events(); // According to Windows API documentation, an illegal instruction sequence should generate // the 0xCC exception code. However, real world experience shows that occasionnaly // the execution of an illegal instruction can generate the exception code 0xCE. This // seems to be an undocumented feature of Win NT (and probably other Windows systems). #define EXCEPTION_ILLEGAL_INSTRUCTION_2 0xCE // From "Execution Protection in the Windows Operating System" draft // Once a system header becomes available, the "real" define should be // included or copied here. #define EXCEPTION_INFO_EXEC_VIOLATION 0x08 // Windows Vista/ heap corruption check #define EXCEPTION_HEAP_CORRUPTION 0xC // All Visual C++ exceptions thrown from regqueryvalueex failed error 234 generated by the Microsoft Visual // C++ compiler contain this error code. Because this is a compiler-generated // error, the code is not listed in the Win32 API php fwrite error files. // The code is actually a cryptic mnemonic device, with the initial "E" // standing for "exception" and the final 3 bytes (0x6D) representing the // ASCII values of "msc". number == code) { jio_snprintf(buf, size, "%s", exceptlabels[i].= ctx->sprers.eulWord) { // Restore FPCW and mask out FLT exceptions ctx->sprers.eulWord = fp_control_word

Regqueryvalueex failed error 234 - apologise, but

// Read field that contains code of architecture // that dll was built for (sizeof(lib_arch) != (os::read(fd, (void*)&lib_arch, sizeof(lib_arch)))) ); ::close(fd); if (failed_to_get_lib_arch) { // file i/o error - report os::lasterror() msg return NULL; } typedef struct { uint16_t arch_code; char* arch_name; } arch_t; static const arch_t arch_array[] = { {IMAGE_FILE_MACHINE_I, (char*)"IA 32"}, {IMAGE_FILE_MACHINE_AMD64, (char*)"AMD 64"} }; #if (defined _M_AMD64) static const uint16_t running_arch = IMAGE_FILE_MACHINE_AMD64; #elif (defined _M_IX86) static const uint16_t running_arch = IMAGE_FILE_MACHINE_I; #else #error Method os::dll_load requires that one of following \ is defined :_M_AMD64 or _M_IX86 #endif // Obtain a string for printf operation // lib_arch_str shall contain string what platform this .dll was built for // running_arch_str shall string contain what platform Hotspot was built for char *running_arch_str = NULL, *lib_arch_str = NULL; for (unsigned int i = 0; i < ARRAY_SIZE(arch_array); i++) { if (lib_arch == arch_array[i].arch_code) { lib_arch_str = arch_array[i].arch_name; } if (running_arch == arch_array[i].arch_code) { running_arch_str = arch_array[i].arch_name; } } assert(running_arch_str, "Didn't find running architecture code in arch_array"); // If the architecture is right // but some other error took place - report os::lasterror() msg if (lib_arch == running_arch) { return NULL; } if (lib_arch_str != NULL) { ::_snprintf(ebuf, ebuflen - 1, "Can't load %s-bit .dll on a %s-bit platform", lib_arch_str, running_arch_str); } else { // don't know what architecture this dll was build for ::_snprintf(ebuf, ebuflen - 1, "Can't load this .dll (machine code=0x%x) on a %s-bit platform", lib_arch, running_arch_str); } return NULL; } void os::print_dll_info(outputStream *st) { st->print_cr("Dynamic libraries:"); get_loaded_modules_info(_print_module, (void *)st); } int os::get_loaded_modules_info(os::LoadedModulesCallbackFunc callback, void *param) { HANDLE hProcess; # define MAX_NUM_MODULES HMODULE modules[MAX_NUM_MODULES]; static char filename[MAX_PATH]; int result = 0; int pid = os::current_process_id(); hProcess = OpenProcess(PROCESS_QUERY_INFORMATION thread->thread_state() == _thread_in_native is_unsafe_arraycopy) && thread->doing_unsafe_access()) cb->is_frame_complete_at(pc)) { // Not sure where the pc points to, fallback to default // stack overflow handling return false; } else { *fr = os::fetch_frame_from_context((void*)exceptionInfo->ContextRecord); // in compiled code, the stack banging is performed just after the return pc // has been pushed on the stack *fr = frame(fr->sp() + 1, fr->fp(), (address)*(fr->sp())); if (!fr->is_java_frame()) { // See java_sender() comment above. *fr = fr->java_sender(); } } } assert(fr->is_java_frame(), "Safety check"); return true; } #if INCLUDE_AOT LONG WINAPI topLevelVectoredExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo) { PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; address addr = (address) exceptionRecord->ExceptionInformation[1]; address pc = (address) exceptionInfo->ContextRecord->Rip; // Handle the case where we get an implicit exception in AOT generated // code. AOT DLL's loaded are not registered for structured exceptions. // If the exception occurred in the codeCache or AOT code, pass control // to our normal exception handler. CodeBlob* cb = CodeCache::find_blob(pc); if (cb != NULL) { return topLevelExceptionFilter(exceptionInfo); } return EXCEPTION_CONTINUE_SEARCH; } #endif // LONG WINAPI topLevelExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo) { if (InterceptOSException) return EXCEPTION_CONTINUE_SEARCH; DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode; #ifdef _M_AMD64 address pc = (address) exceptionInfo->ContextRecord->Rip; #else address pc = (address) exceptionInfo->ContextRecord->Eip; #endif Thread* t = Thread::current_or_null_safe(); // Handle SafeFetch32 and SafeFetchN exceptions. if (StubRoutines::is_safefetch_fault(pc)) { return Handle_Exception(exceptionInfo, StubRoutines::continuation_for_safefetch_fault(pc)); } #ifndef _WIN64 // Execution protection violation - win32 running on AMD64 only // Handled first to avoid misdiagnosis as a "normal" access violation; // This is safe to do because we have a new/unique ExceptionInformation // code for this condition. if (exception_code == EXCEPTION_ACCESS_VIOLATION) { PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; int exception_subcode = (int) exceptionRecord->ExceptionInformation[0]; address addr = (address) exceptionRecord->ExceptionInformation[1]; if (exception_subcode == EXCEPTION_INFO_EXEC_VIOLATION) { int page_size = os::vm_page_size(); // Make sure the pc and the faulting address are sane. // // If an instruction spans a page boundary, and the page containing // the beginning of the instruction is executable but the following // page is not, the pc and the faulting address might be slightly // different - we still want to unguard the 2nd page in this case. // // 15 bytes seems to be a (very) safe value for max instruction size. bool pc_is_near_addr = (pointer_delta((void*) addr, (void*) pc, sizeof(char)) < 15); bool instr_spans_page_boundary = (align_down((intptr_t) pc ^ (intptr_t) addr, (intptr_t) page_size) > 0); if (pc == addr


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