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omrsysinfo.c
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omrsysinfo.c
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/*******************************************************************************
* Copyright (c) 2015, 2020 IBM Corp. and others
*
* This program and the accompanying materials are made available under
* the terms of the Eclipse Public License 2.0 which accompanies this
* distribution and is available at https://www.eclipse.org/legal/epl-2.0/
* or the Apache License, Version 2.0 which accompanies this distribution and
* is available at https://www.apache.org/licenses/LICENSE-2.0.
*
* This Source Code may also be made available under the following
* Secondary Licenses when the conditions for such availability set
* forth in the Eclipse Public License, v. 2.0 are satisfied: GNU
* General Public License, version 2 with the GNU Classpath
* Exception [1] and GNU General Public License, version 2 with the
* OpenJDK Assembly Exception [2].
*
* [1] https://www.gnu.org/software/classpath/license.html
* [2] http://openjdk.java.net/legal/assembly-exception.html
*
* SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0 WITH Classpath-exception-2.0 OR LicenseRef-GPL-2.0 WITH Assembly-exception
*******************************************************************************/
/**
* @file
* @ingroup Port
* @brief System information
*/
#include <pdh.h>
#include <pdhmsg.h>
#include <stdio.h>
#include <windows.h>
#include <WinSDKVer.h>
/* Undefine the winsockapi because winsock2 defines it. Removes warnings. */
#if defined(_WINSOCKAPI_) && !defined(_WINSOCK2API_)
#undef _WINSOCKAPI_
#endif
#include <winsock2.h>
#if defined(_WIN32_WINNT_WINBLUE) && (_WIN32_WINNT_MAXVER >= _WIN32_WINNT_WINBLUE)
#include <VersionHelpers.h>
#endif
#include "omrportpriv.h"
#include "omrportpg.h"
#include "omrportptb.h"
#include "ut_omrport.h"
#include "omrsysinfo_helpers.h"
static int32_t copyEnvToBuffer(struct OMRPortLibrary *portLibrary, void *args);
typedef struct CopyEnvToBufferArgs {
uintptr_t bufferSizeBytes;
void *buffer;
uintptr_t numElements;
} CopyEnvToBufferArgs;
/* Missing from the ALPHA include files */
#ifndef VER_PLATFORM_WIN32_WINDOWS
#define VER_PLATFORM_WIN32_WINDOWS 1
#endif
void
omrsysinfo_set_number_user_specified_CPUs(struct OMRPortLibrary *portLibrary, uintptr_t number)
{
Trc_PRT_sysinfo_set_number_user_specified_CPUs_Entered();
portLibrary->portGlobals->userSpecifiedCPUs = number;
Trc_PRT_sysinfo_set_number_user_specified_CPUs_Exit(number);
}
/**
* Determine the CPU architecture.
*
* @param[in] portLibrary The port library.
*
* @return A null-terminated string describing the CPU architecture of the hardware, NULL on error.
*
* @note portLibrary is responsible for allocation/deallocation of returned buffer.
* @note See http://www.tolstoy.com/samizdat/sysprops.html for good values to return.
*/
const char *
omrsysinfo_get_CPU_architecture(struct OMRPortLibrary *portLibrary)
{
#if defined(_PPC_)
return OMRPORT_ARCH_PPC;
#elif defined(_X86_)
return OMRPORT_ARCH_X86;
#elif defined( _AMD64_)
return OMRPORT_ARCH_HAMMER;
#else
return "unknown";
#endif
}
intptr_t
omrsysinfo_get_processor_description(struct OMRPortLibrary *portLibrary, OMRProcessorDesc *desc)
{
intptr_t rc = -1;
Trc_PRT_sysinfo_get_processor_description_Entered(desc);
if (NULL != desc) {
memset(desc, 0, sizeof(OMRProcessorDesc));
rc = omrsysinfo_get_x86_description(portLibrary, desc);
}
Trc_PRT_sysinfo_get_processor_description_Exit(rc);
return rc;
}
BOOLEAN
omrsysinfo_processor_has_feature(struct OMRPortLibrary *portLibrary, OMRProcessorDesc *desc, uint32_t feature)
{
BOOLEAN rc = FALSE;
Trc_PRT_sysinfo_processor_has_feature_Entered(desc, feature);
if ((NULL != desc) && (feature < (OMRPORT_SYSINFO_FEATURES_SIZE * 32))) {
uint32_t featureIndex = feature / 32;
uint32_t featureShift = feature % 32;
rc = OMR_ARE_ALL_BITS_SET(desc->features[featureIndex], 1u << featureShift);
}
Trc_PRT_sysinfo_processor_has_feature_Exit((uintptr_t)rc);
return rc;
}
intptr_t
omrsysinfo_processor_set_feature(struct OMRPortLibrary *portLibrary, OMRProcessorDesc *desc, uint32_t feature, BOOLEAN enable)
{
intptr_t rc = -1;
Trc_PRT_sysinfo_processor_set_feature_Entered(desc, feature, enable);
if ((NULL != desc) && (feature < (OMRPORT_SYSINFO_FEATURES_SIZE * 32))) {
uint32_t featureIndex = feature / 32;
uint32_t featureShift = feature % 32;
if (enable) {
desc->features[featureIndex] |= (1u << featureShift);
}
else {
desc->features[featureIndex] &= ~(1u << featureShift);
}
rc = 0;
}
Trc_PRT_sysinfo_processor_set_feature_Exit(rc);
return rc;
}
const char*
omrsysinfo_get_processor_feature_name(struct OMRPortLibrary *portLibrary, uint32_t feature)
{
const char* rc = "null";
Trc_PRT_sysinfo_get_processor_feature_name_Entered(feature);
rc = omrsysinfo_get_x86_processor_feature_name(feature);
Trc_PRT_sysinfo_get_processor_feature_name_Exit(rc);
return rc;
}
/**
* Generate the corresponding string literals for the provided OMRProcessorDesc. The buffer will be zero
* initialized and overwritten with the processor feature output string.
*
* @param[in] portLibrary The port library.
* @param[in] desc The struct that contains the list of processor features to be converted to string.
* @param[out] buffer The processor feature output string.
* @param[in] length The size of the buffer in number of bytes.
*
* @return 0 on success, -1 if output string size exceeds input length.
*/
intptr_t
omrsysinfo_get_processor_feature_string(struct OMRPortLibrary *portLibrary, OMRProcessorDesc *desc, char * buffer, const size_t length)
{
BOOLEAN start = TRUE;
size_t i = 0;
size_t j = 0;
size_t numberOfBits = 0;
size_t bufferLength = 0;
memset(buffer, 0, length * sizeof(char));
for (i = 0; i < OMRPORT_SYSINFO_FEATURES_SIZE; i++) {
numberOfBits = CHAR_BIT * sizeof(desc->features[i]);
for (j = 0; j < numberOfBits; j++) {
if (desc->features[i] & (1 << j)) {
uint32_t feature = (uint32_t)(i * numberOfBits + j);
const char * featureName = omrsysinfo_get_processor_feature_name(portLibrary, feature);
size_t featureLength = strlen(featureName);
if (start == FALSE) {
strncat(buffer, " ", length - bufferLength - 1);
bufferLength += 1;
}
else {
start = FALSE;
}
if (length - bufferLength - 1 < featureLength) {
return -1;
}
strncat(buffer, featureName, length - bufferLength - 1);
bufferLength += featureLength;
}
}
}
return 0;
}
#define ENVVAR_VALUE_BUFFER_LENGTH 512
#define ENVVAR_NAME_BUFFER_LENGTH 128
intptr_t
omrsysinfo_get_env(struct OMRPortLibrary *portLibrary, const char *envVar, char *infoString, uintptr_t bufSize)
{
DWORD rc = 0;
intptr_t result = -1;
wchar_t envVarWideCharValueBuffer[ENVVAR_VALUE_BUFFER_LENGTH];
wchar_t *envVarWideCharValue = envVarWideCharValueBuffer;
wchar_t *envVarWideCharName = NULL;
wchar_t envVarNameConversionBuffer[ENVVAR_NAME_BUFFER_LENGTH];
/*
* Convert the envvar from modified UTF-8 to UTF-16 (wide character).
* Stack-allocate a buffer large enough to hold typical envvar names.
* If the name is larger than the buffer, a new buffer is dynamically allocated.
*/
envVarWideCharName = port_convertFromUTF8(portLibrary, envVar, envVarNameConversionBuffer, ENVVAR_NAME_BUFFER_LENGTH);
if (NULL == envVarWideCharName) {
return -1;
}
rc = GetEnvironmentVariableW(envVarWideCharName, envVarWideCharValue, ENVVAR_VALUE_BUFFER_LENGTH); /* Try with the stack buffer first */
if ((ENVVAR_VALUE_BUFFER_LENGTH <= rc) && (0 != rc)) {
/* if the value fit, rc, which does not include the null, is at most ENVVAR_VALUE_BUFFER_LENGTH-1. */
DWORD envVarValueLength = rc;
envVarWideCharValue = (wchar_t *)portLibrary->mem_allocate_memory(portLibrary, envVarValueLength * sizeof(wchar_t), OMR_GET_CALLSITE(), OMRMEM_CATEGORY_PORT_LIBRARY);
if (NULL != envVarWideCharValue) {
rc = GetEnvironmentVariableW(envVarWideCharName, envVarWideCharValue, envVarValueLength);
} else {
rc = 0; /* Memory allocation failure */
}
}
if (envVarNameConversionBuffer != envVarWideCharName) {
/* port_convertFromUTF8 allocated a buffer for us */
portLibrary->mem_free_memory(portLibrary, envVarWideCharName);
}
if (0 == rc) {
/*
* Possible causes:
* - envvar does not exist or is empty
* - memory allocation failure
*/
result = -1;
} else {
/* Calculate the number of bytes required for the conversion */
rc = WideCharToMultiByte(OS_ENCODING_CODE_PAGE, OS_ENCODING_WC_FLAGS, envVarWideCharValue, -1, NULL, 0, NULL, NULL);
if (0 == rc) { /* error, probably bogus Unicode */
result = -1;
} else if (rc > bufSize) {
/* Caller-supplied buffer is too small. Return the actual number of bytes required. */
result = rc;
} else {
/* Do the conversion for real. */
rc = WideCharToMultiByte(OS_ENCODING_CODE_PAGE, OS_ENCODING_WC_FLAGS, envVarWideCharValue, -1, infoString, (int)bufSize, NULL, NULL);
Assert_PRT_true(0 != rc); /* Bogus Unicode or buffer too small should be caught by previous tests */
result = 0;
}
}
if (envVarWideCharValue != envVarWideCharValueBuffer) {
/* We had to allocate a large buffer */
portLibrary->mem_free_memory(portLibrary, envVarWideCharValue);
}
return result;
}
/**
* Determine the OS type.
*
* @param[in] portLibrary The port library.
*
* @return OS type string (NULL terminated) on success, NULL on error.
*
* @note portLibrary is responsible for allocation/deallocation of returned buffer.
*/
const char *
omrsysinfo_get_OS_type(struct OMRPortLibrary *portLibrary)
{
BOOLEAN isServerMajorVersion10 = FALSE;
/*
WIN32_WINNT version constants :
#define _WIN32_WINNT_NT4 0x0400
#define _WIN32_WINNT_WIN2K 0x0500
#define _WIN32_WINNT_WINXP 0x0501
#define _WIN32_WINNT_WS03 0x0502
#define _WIN32_WINNT_WIN6 0x0600
#define _WIN32_WINNT_VISTA 0x0600
#define _WIN32_WINNT_WS08 0x0600
#define _WIN32_WINNT_LONGHORN 0x0600
#define _WIN32_WINNT_WIN7 0x0601
#define _WIN32_WINNT_WIN8 0x0602
#define _WIN32_WINNT_WINBLUE 0x0603
#define _WIN32_WINNT_WINTHRESHOLD 0x0A00 / * ABRACADABRA_THRESHOLD * /
#define _WIN32_WINNT_WIN10 0x0A00 / * ABRACADABRA_THRESHOLD * /
*/
if (NULL == PPG_si_osType) {
char *defaultTypeName = "Windows";
#if !defined(_WIN32_WINNT_WINBLUE) || (_WIN32_WINNT_MAXVER < _WIN32_WINNT_WINBLUE)
/* Windows 8 or earlier */
OSVERSIONINFOEX versionInfo;
#endif
PPG_si_osType = defaultTypeName; /* by default, use the "unrecognized version" string */
PPG_si_osTypeOnHeap = NULL;
#if defined(_WIN32_WINNT_WINBLUE) && (_WIN32_WINNT_MAXVER >= _WIN32_WINNT_WINBLUE)
/* Windows 8.1 or later */
/* OS Versions: https://msdn.microsoft.com/en-us/library/windows/desktop/ms724832(v=vs.85).aspx */
if (IsWindowsServer()) {
#if defined(_WIN32_WINNT_WIN10) && (_WIN32_WINNT_MAXVER >= _WIN32_WINNT_WIN10)
if (IsWindows10OrGreater()) {
/* Starting with major version 10, use the registry to get the version */
PPG_si_osType = defaultTypeName;
isServerMajorVersion10 = TRUE;
} else
#endif /* defined(_WIN32_WINNT_WIN10) && (_WIN32_WINNT_MAXVER >= _WIN32_WINNT_WIN10) */
if (IsWindows8Point1OrGreater()) {
PPG_si_osType = "Windows Server 2012 R2";
} else if (IsWindows8OrGreater()) {
PPG_si_osType = "Windows Server 2012";
} else if (IsWindows7OrGreater()) {
PPG_si_osType = "Windows Server 2008 R2";
} else if (IsWindowsVistaOrGreater()) {
PPG_si_osType = "Windows Server 2008";
} else if (IsWindowsXPOrGreater()) {
PPG_si_osType = "Windows Server 2003";
}
} else {
#if defined(_WIN32_WINNT_WIN10) && (_WIN32_WINNT_MAXVER >= _WIN32_WINNT_WIN10)
if (IsWindows10OrGreater()) {
/* May need to check ReleaseId when next Windows version is released */
PPG_si_osType = "Windows 10";
} else
#endif /* defined(_WIN32_WINNT_WIN10) && (_WIN32_WINNT_MAXVER >= _WIN32_WINNT_WIN10) */
if (IsWindows8Point1OrGreater()) {
PPG_si_osType = "Windows 8.1";
} else if (IsWindows8OrGreater()) {
PPG_si_osType = "Windows 8";
} else if (IsWindows7OrGreater()) {
PPG_si_osType = "Windows 7";
} else if (IsWindowsVistaOrGreater()) {
PPG_si_osType = "Windows Vista";
} else if (IsWindowsXPOrGreater()) {
PPG_si_osType = "Windows XP";
}
}
#else /* defined(_WIN32_WINNT_WINBLUE) && (_WIN32_WINNT_MAXVER >= _WIN32_WINNT_WINBLUE) */
versionInfo.dwOSVersionInfoSize = sizeof(versionInfo);
if (!GetVersionEx((OSVERSIONINFO *) &versionInfo)) {
return NULL;
}
if (VER_PLATFORM_WIN32_NT == versionInfo.dwPlatformId) {
/*
* Java 8 and later support Windows 7 and later.
* Include legacy versions out of sympathy.
*/
switch (versionInfo.dwMajorVersion) {
case 5: {
switch (versionInfo.dwMinorVersion) {
case 0:
PPG_si_osType = "Windows 2000";
break;
case 1:
PPG_si_osType = "Windows XP"; /* 32-bit */
break;
case 2:
switch (versionInfo.wProductType) {
case VER_NT_WORKSTATION:
PPG_si_osType = "Windows XP"; /* 64-bit */
break;
case VER_NT_DOMAIN_CONTROLLER: /* FALLTHROUGH */
case VER_NT_SERVER:
default :
PPG_si_osType = "Windows Server 2003";
break;
}
break;
default:
PPG_si_osType = defaultTypeName;
break;
}
break;
}
case 6: {
switch (versionInfo.wProductType) {
case VER_NT_WORKSTATION: {
switch (versionInfo.dwMinorVersion) {
case 0:
PPG_si_osType = "Windows Vista";
break;
case 1:
PPG_si_osType = "Windows 7";
break;
case 2:
PPG_si_osType = "Windows 8";
break;
case 3:
PPG_si_osType = "Windows 8.1";
break;
default:
PPG_si_osType = defaultTypeName;
break;
} /* VER_NT_WORKSTATION */
break;
}
default: {
switch (versionInfo.dwMinorVersion) {
case 0:
PPG_si_osType = "Windows Server 2008";
break;
case 1:
PPG_si_osType = "Windows Server 2008 R2";
break;
case 2:
PPG_si_osType = "Windows Server 2012";
break;
case 3:
PPG_si_osType = "Windows Server 2012 R2";
break;
default:
PPG_si_osType = defaultTypeName;
break;
}
break;
}
} /* switch (versionInfo.wProductType) */
/* (versionInfo.dwMajorVersion == 6) */
break;
}
case 10: {
switch (versionInfo.wProductType) {
case VER_NT_WORKSTATION: {
switch (versionInfo.dwMinorVersion) {
case 0:
PPG_si_osType = "Windows 10";
break;
default:
PPG_si_osType = defaultTypeName;
break;
}
}
break;
default: {
/* Starting with major version 10, use the registry to get the version */
PPG_si_osType = defaultTypeName;
isServerMajorVersion10 = TRUE;
}
break;
}
}
break;
default:
PPG_si_osType = defaultTypeName;
break;
}
}
#endif /* defined(_WIN32_WINNT_WINBLUE) && (_WIN32_WINNT_MAXVER >= _WIN32_WINNT_WINBLUE) */
#define PRODUCT_NAME_KEY "ProductName"
#define RELEASE_ID_KEY "ReleaseId"
#define WINDOWS_SERVER_PREFIX "Windows Server version "
if (defaultTypeName == PPG_si_osType) {
HKEY hKey;
if (ERROR_SUCCESS == RegOpenKeyExA(HKEY_LOCAL_MACHINE,
"SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion", 0, KEY_READ, &hKey)) {
DWORD valueSize = 0;
if (isServerMajorVersion10
&& (ERROR_SUCCESS == RegQueryValueExA(hKey, RELEASE_ID_KEY, NULL, NULL, NULL, &valueSize))) {
char ridBuffer[5]; /* the ReleaseId string format is YYMM */
if (sizeof(ridBuffer) >= valueSize) {
if (ERROR_SUCCESS == RegQueryValueExA(hKey, RELEASE_ID_KEY, NULL, NULL, (LPBYTE)ridBuffer, &valueSize)) {
if (0 == strcmp(ridBuffer, "1607")) {
PPG_si_osType = "Windows Server 2016";
} else if (0 == strcmp(ridBuffer, "1809")) {
PPG_si_osType = "Windows Server 2019";
} else {
size_t bufferSize = sizeof(WINDOWS_SERVER_PREFIX) + valueSize + 1;
char *productNameBuffer = portLibrary->mem_allocate_memory(portLibrary,
valueSize, OMR_GET_CALLSITE(), OMRMEM_CATEGORY_PORT_LIBRARY);
if (NULL != productNameBuffer) {
/* Print the version string using the format used by Microsoft */
portLibrary->str_printf(portLibrary, productNameBuffer, bufferSize,
"%s%s", WINDOWS_SERVER_PREFIX, ridBuffer);
PPG_si_osTypeOnHeap = productNameBuffer;
PPG_si_osType = PPG_si_osTypeOnHeap;
}
}
}
}
}
if (defaultTypeName == PPG_si_osType) {
/* query the first time to get the content size of the value. */
if (ERROR_SUCCESS == RegQueryValueExA(hKey, PRODUCT_NAME_KEY, NULL, NULL, NULL, &valueSize)) {
char *productNameBuffer = portLibrary->mem_allocate_memory(portLibrary, valueSize, OMR_GET_CALLSITE(), OMRMEM_CATEGORY_PORT_LIBRARY);
if (NULL != productNameBuffer) {
/* query the second time to get the value */
if (ERROR_SUCCESS == RegQueryValueExA(hKey, PRODUCT_NAME_KEY, NULL, NULL, (LPBYTE)productNameBuffer, &valueSize)) {
PPG_si_osType = PPG_si_osTypeOnHeap = productNameBuffer;
} else {
portLibrary->mem_free_memory(portLibrary, productNameBuffer);
}
}
}
}
}
}
#undef PRODUCT_NAME_KEY
#undef RELEASE_ID_KEY
#undef WINDOWS_SERVER_PREFIX
if (defaultTypeName == PPG_si_osType) {
#if defined(_WIN32_WINNT_WINBLUE) && (_WIN32_WINNT_MAXVER >= _WIN32_WINNT_WINBLUE)
Trc_PRT_sysinfo_failed_to_get_os_type();
#else
Trc_PRT_sysinfo_unrecognized_Windows_version(versionInfo.wProductType, versionInfo.dwMinorVersion, versionInfo.dwMajorVersion);
#endif
}
}
return PPG_si_osType;
}
/**
* Determine version information from the operating system.
*
* @param[in] portLibrary The port library.
*
* @return OS version string (NULL terminated) on success, NULL on error.
*
* @note portLibrary is responsible for allocation/deallocation of returned buffer.
*/
const char *
omrsysinfo_get_OS_version(struct OMRPortLibrary *portLibrary)
{
/* OS Version format : <CurrentVersion> build <CurrentBuildNumber> <CSDVersion>
* Sample : 6.1 build 7601 Service Pack 1
* */
if (NULL == PPG_si_osVersion) {
#if defined(_WIN32_WINNT_WINBLUE) && (_WIN32_WINNT_MAXVER >= _WIN32_WINNT_WINBLUE)
#if defined(_WIN32_WINNT_WIN10) && (_WIN32_WINNT_MAXVER >= _WIN32_WINNT_WIN10)
if (IsWindows10OrGreater()) {
PPG_si_osVersion = "10.0 build 10240";
} else
#endif /* defined(_WIN32_WINNT_WIN10) && (_WIN32_WINNT_MAXVER >= _WIN32_WINNT_WIN10) */
if (IsWindows8Point1OrGreater()) {
PPG_si_osVersion = "6.3 build 9600";
} else if (IsWindows8OrGreater()) {
PPG_si_osVersion = "6.2 build 9200";
} else if (IsWindows7SP1OrGreater()) {
PPG_si_osVersion = "6.1 build 7601 Sevice Pack 1";
} else if (IsWindows7OrGreater()) {
PPG_si_osVersion = "6.1 build 7600";
} else if (IsWindowsVistaSP2OrGreater()) {
PPG_si_osVersion = "6.0 build 6002 Sevice Pack 2";
} else if (IsWindowsVistaSP1OrGreater()) {
PPG_si_osVersion = "6.0 build 6001 Sevice Pack 1";
} else if (IsWindowsVistaOrGreater()) {
PPG_si_osVersion = "6.0 build 6000";
/* The Windows XP Service Packs do not update the version number. */
} else if (IsWindowsXPSP3OrGreater()) {
PPG_si_osVersion = "5.1 build 2600 Sevice Pack 3";
} else if (IsWindowsXPSP2OrGreater()) {
PPG_si_osVersion = "5.1 build 2600 Sevice Pack 2";
} else if (IsWindowsXPSP1OrGreater()) {
PPG_si_osVersion = "5.1 build 2600 Sevice Pack 1";
} else if (IsWindowsXPOrGreater()) {
PPG_si_osVersion = "5.1 build 2600";
}
#else /* defined(_WIN32_WINNT_WINBLUE) && (_WIN32_WINNT_MAXVER >= _WIN32_WINNT_WINBLUE) */
OSVERSIONINFOW versionInfo;
int len = sizeof("0123456789.0123456789 build 0123456789 ") + 1;
char *buffer;
uintptr_t position;
versionInfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFOW);
if (!GetVersionExW(&versionInfo)) {
return NULL;
}
if (NULL != versionInfo.szCSDVersion) {
len += WideCharToMultiByte(OS_ENCODING_CODE_PAGE, OS_ENCODING_WC_FLAGS, versionInfo.szCSDVersion, -1, NULL, 0, NULL, NULL);
}
buffer = portLibrary->mem_allocate_memory(portLibrary, len, OMR_GET_CALLSITE(), OMRMEM_CATEGORY_PORT_LIBRARY);
if (NULL == buffer) {
return NULL;
}
position = portLibrary->str_printf(portLibrary, buffer, len, "%d.%d build %d",
versionInfo.dwMajorVersion,
versionInfo.dwMinorVersion,
versionInfo.dwBuildNumber & 0x0000FFFF);
if ((NULL != versionInfo.szCSDVersion) && ('\0' != versionInfo.szCSDVersion[0])) {
buffer[position++] = ' ';
WideCharToMultiByte(OS_ENCODING_CODE_PAGE, OS_ENCODING_WC_FLAGS, versionInfo.szCSDVersion, -1, &buffer[position], (int)(len - position - 1), NULL, NULL);
}
PPG_si_osVersion = buffer;
#endif /* defined(_WIN32_WINNT_WINBLUE) && (_WIN32_WINNT_MAXVER >= _WIN32_WINNT_WINBLUE) */
}
return PPG_si_osVersion;
}
intptr_t
omrsysinfo_process_exists(struct OMRPortLibrary *portLibrary, uintptr_t pid)
{
HANDLE hProcess;
intptr_t rc = 0;
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, (DWORD)pid);
/* OpenProcess returns NULL if the process does not exist or if the call fails for other reasons */
if (NULL == hProcess) {
DWORD lastError = GetLastError();
/*
* if we are querying another user's process, we get ERROR_ACCESS_DENIED.
* For dead processes we get ERROR_INVALID_PARAMETER
*/
if (ERROR_ACCESS_DENIED == lastError) {
rc = 1;
}
} else {
DWORD exitCode;
uintptr_t callSucceeded;
callSucceeded = GetExitCodeProcess(hProcess, (LPDWORD)&exitCode);
if ((0 != callSucceeded) && (STILL_ACTIVE == exitCode)) {
rc = 1;
}
CloseHandle(hProcess);
}
return rc;
}
/**
* Determine the process ID of the calling process.
*
* @param[in] portLibrary The port library.
*
* @return the PID.
*/
uintptr_t
omrsysinfo_get_pid(struct OMRPortLibrary *portLibrary)
{
return GetCurrentProcessId();
}
uintptr_t
omrsysinfo_get_ppid(struct OMRPortLibrary *portLibrary)
{
return 0;
}
uintptr_t
omrsysinfo_get_euid(struct OMRPortLibrary *portLibrary)
{
return 0;
}
uintptr_t
omrsysinfo_get_egid(struct OMRPortLibrary *portLibrary)
{
return 0;
}
intptr_t
omrsysinfo_get_groups(struct OMRPortLibrary *portLibrary, uint32_t **gidList, uint32_t categoryCode)
{
return -1;
}
/**
* @internal Helper routine that determines the full path of the current executable
* that launched the JVM instance.
*/
static intptr_t
find_executable_name(struct OMRPortLibrary *portLibrary, char **result)
{
DWORD length;
wchar_t unicodeBuffer[UNICODE_BUFFER_SIZE];
char *utf8Result;
length = GetModuleFileNameW(NULL, unicodeBuffer, UNICODE_BUFFER_SIZE);
if (!length || (length >= UNICODE_BUFFER_SIZE)) {
return -1;
}
unicodeBuffer[length] = '\0';
utf8Result = portLibrary->mem_allocate_memory(portLibrary, (length + 1) * 3, OMR_GET_CALLSITE(), OMRMEM_CATEGORY_PORT_LIBRARY);
if (NULL == utf8Result) {
return -1;
}
port_convertToUTF8(portLibrary, unicodeBuffer, utf8Result, length * 3);
*result = utf8Result;
return 0;
}
/**
* Determines an absolute pathname for the executable.
*
* @param[in] portLibrary The port library.
* @param[in] argv0 argv[0] value
* @param[out] result Null terminated pathname string
*
* @return 0 on success, -1 on error (or information is not available).
*
* @note Caller should /not/ de-allocate memory in the result buffer, as string containing
* the executable name is system-owned (managed internally by the port library).
*/
intptr_t
omrsysinfo_get_executable_name(struct OMRPortLibrary *portLibrary, const char *argv0, char **result)
{
(void) argv0; /* @args used */
/* Clear any pending error conditions. */
portLibrary->error_set_last_error(portLibrary, 0, 0);
if (PPG_si_executableName) {
*result = PPG_si_executableName;
return 0;
}
*result = NULL;
return (intptr_t)-1;
}
uintptr_t
omrsysinfo_get_number_CPUs_by_type(struct OMRPortLibrary *portLibrary, uintptr_t type)
{
uintptr_t toReturn = 0;
Trc_PRT_sysinfo_get_number_CPUs_by_type_Entered();
switch (type) {
case OMRPORT_CPU_PHYSICAL:
case OMRPORT_CPU_ONLINE: {
SYSTEM_INFO aSysInfo;
GetSystemInfo(&aSysInfo);
toReturn = aSysInfo.dwNumberOfProcessors;
if (0 == toReturn) {
Trc_PRT_sysinfo_get_number_CPUs_by_type_failedPhysical("(no errno) ", 0);
}
break;
}
case OMRPORT_CPU_BOUND: {
uintptr_t processAffinity = 0;
uintptr_t systemAffinity = 0;
HANDLE currentProcess = GetCurrentProcess();
uintptr_t count = 0;
int32_t i = 0;
uintptr_t mask = 0x1;
GetProcessAffinityMask(currentProcess, (PDWORD_PTR) &processAffinity, (PDWORD_PTR) &systemAffinity);
/*
* Count the number of bound CPU's
*/
for (i = 0; i < (sizeof(DWORD64) * 8); i++) {
count += (0 == (processAffinity & mask)) ? 0 : 1;
mask <<= 1;
}
toReturn = count;
if (0 == toReturn) {
Trc_PRT_sysinfo_get_number_CPUs_by_type_failedBound("errno: ", GetLastError());
}
break;
}
case OMRPORT_CPU_TARGET: {
uintptr_t specified = portLibrary->portGlobals->userSpecifiedCPUs;
if (0 < specified) {
toReturn = specified;
} else {
toReturn = portLibrary->sysinfo_get_number_CPUs_by_type(portLibrary, OMRPORT_CPU_BOUND);
}
break;
}
default:
/* Invalid argument */
toReturn = 0;
Trc_PRT_sysinfo_get_number_CPUs_by_type_invalidType();
break;
}
Trc_PRT_sysinfo_get_number_CPUs_by_type_Exit(type, toReturn);
return toReturn;
}
/* Paths for pdh memory counters. */
#define MEMORY_COMMIT_LIMIT_COUNTER_PATH "\\Memory\\Commit Limit"
#define MEMORY_COMMITTED_BYTES_COUNTER_PATH "\\Memory\\Committed Bytes"
#define MEMORY_CACHE_BYTES_COUNTER_PATH "\\Memory\\Cache Bytes"
int32_t
omrsysinfo_get_memory_info(struct OMRPortLibrary *portLibrary, struct J9MemoryInfo *memInfo, ...)
{
int32_t rc = -1;
MEMORYSTATUSEX aMemStatusEx = {0};
/* Handles for pdh memory counters. */
PDH_HCOUNTER memoryCommitLimitCounter = NULL;
PDH_HCOUNTER memoryCommittedBytesCounter = NULL;
PDH_HCOUNTER memoryCacheBytesCounter = NULL;
/* Handle for querying pdh performance data. */
PDH_HQUERY statsHandle = NULL;
PDH_STATUS status = ERROR_SUCCESS;
PDH_RAW_COUNTER counterValue = {PDH_CSTATUS_INVALID_DATA, {0, 0}, 0, 0, 0};
Trc_PRT_sysinfo_get_memory_info_Entered();
if (NULL == memInfo) {
Trc_PRT_sysinfo_get_memory_info_Exit(OMRPORT_ERROR_SYSINFO_NULL_OBJECT_RECEIVED);
return OMRPORT_ERROR_SYSINFO_NULL_OBJECT_RECEIVED;
}
memInfo->totalPhysical = OMRPORT_MEMINFO_NOT_AVAILABLE;
memInfo->availPhysical = OMRPORT_MEMINFO_NOT_AVAILABLE;
memInfo->totalVirtual = OMRPORT_MEMINFO_NOT_AVAILABLE;
memInfo->availVirtual = OMRPORT_MEMINFO_NOT_AVAILABLE;
memInfo->totalSwap = OMRPORT_MEMINFO_NOT_AVAILABLE;
memInfo->availSwap = OMRPORT_MEMINFO_NOT_AVAILABLE;
memInfo->cached = OMRPORT_MEMINFO_NOT_AVAILABLE;
memInfo->buffered = OMRPORT_MEMINFO_NOT_AVAILABLE;
aMemStatusEx.dwLength = sizeof(aMemStatusEx);
rc = GlobalMemoryStatusEx(&aMemStatusEx);
/* Win32 API GlobalMemoryStatusEx() returns 0 on failure. */
if (0 == rc) {
Trc_PRT_sysinfo_get_memory_info_memStatFailed(GetLastError());
Trc_PRT_sysinfo_get_memory_info_Exit(OMRPORT_ERROR_SYSINFO_ERROR_READING_MEMORY_INFO);
return OMRPORT_ERROR_SYSINFO_ERROR_READING_MEMORY_INFO;
}
memInfo->totalPhysical = (uint64_t)aMemStatusEx.ullTotalPhys;
memInfo->availPhysical = (uint64_t)aMemStatusEx.ullAvailPhys;
memInfo->totalVirtual = (uint64_t)aMemStatusEx.ullTotalVirtual;
memInfo->availVirtual = (uint64_t)aMemStatusEx.ullAvailVirtual;
/* Create pdh handle for managing the performance data collection. */
status = PdhOpenQuery(NULL, (DWORD_PTR)NULL, (PDH_HQUERY *)&statsHandle);
if (ERROR_SUCCESS != status) {
Trc_PRT_sysinfo_get_memory_info_pdhOpenQueryFailed(status);
Trc_PRT_sysinfo_get_memory_info_Exit(OMRPORT_ERROR_SYSINFO_ERROR_READING_MEMORY_INFO);
return OMRPORT_ERROR_SYSINFO_ERROR_READING_MEMORY_INFO;
}
status = PdhAddCounter(statsHandle,
MEMORY_COMMIT_LIMIT_COUNTER_PATH,
(DWORD_PTR)NULL,
&memoryCommitLimitCounter);
if (ERROR_SUCCESS != status) {
Trc_PRT_sysinfo_get_memory_info_failedAddingCounter("Commit Limit", status);
Trc_PRT_sysinfo_get_memory_info_Exit(OMRPORT_ERROR_SYSINFO_ERROR_READING_MEMORY_INFO);
PdhCloseQuery(statsHandle);
return OMRPORT_ERROR_SYSINFO_ERROR_READING_MEMORY_INFO;
}
status = PdhAddCounter(statsHandle,
MEMORY_COMMITTED_BYTES_COUNTER_PATH,
(DWORD_PTR)NULL,
&memoryCommittedBytesCounter);
if (ERROR_SUCCESS != status) {
Trc_PRT_sysinfo_get_memory_info_failedAddingCounter("Committed Bytes", status);
Trc_PRT_sysinfo_get_memory_info_Exit(OMRPORT_ERROR_SYSINFO_ERROR_READING_MEMORY_INFO);
PdhCloseQuery(statsHandle);
return OMRPORT_ERROR_SYSINFO_ERROR_READING_MEMORY_INFO;
}
status = PdhAddCounter(statsHandle,
MEMORY_CACHE_BYTES_COUNTER_PATH,
(DWORD_PTR)NULL,
&memoryCacheBytesCounter);
if (ERROR_SUCCESS != status) {
Trc_PRT_sysinfo_get_memory_info_failedAddingCounter("Cache Bytes", status);
Trc_PRT_sysinfo_get_memory_info_Exit(OMRPORT_ERROR_SYSINFO_ERROR_READING_MEMORY_INFO);
PdhCloseQuery(statsHandle);
return OMRPORT_ERROR_SYSINFO_ERROR_READING_MEMORY_INFO;
}
/* Collect the current raw data value for all counters in the usage stats query. */
status = PdhCollectQueryData(statsHandle);
if (ERROR_SUCCESS != status) {
Trc_PRT_sysinfo_get_memory_info_dataQueryFailed();
Trc_PRT_sysinfo_get_memory_info_Exit(OMRPORT_ERROR_SYSINFO_ERROR_READING_MEMORY_INFO);
PdhCloseQuery(statsHandle);
return OMRPORT_ERROR_SYSINFO_ERROR_READING_MEMORY_INFO;
}
status = PdhGetRawCounterValue(memoryCommitLimitCounter, (LPDWORD)NULL, &counterValue);
if ((ERROR_SUCCESS == status) && ((PDH_CSTATUS_VALID_DATA == counterValue.CStatus) ||
(PDH_CSTATUS_NEW_DATA == counterValue.CStatus))) {
memInfo->totalSwap = counterValue.FirstValue;
}
status = PdhGetRawCounterValue(memoryCommittedBytesCounter, (LPDWORD)NULL, &counterValue);
if ((ERROR_SUCCESS == status) && ((PDH_CSTATUS_VALID_DATA == counterValue.CStatus) ||
(PDH_CSTATUS_NEW_DATA == counterValue.CStatus))) {
memInfo->availSwap = (memInfo->totalSwap - counterValue.FirstValue);
}
status = PdhGetRawCounterValue(memoryCacheBytesCounter, (LPDWORD)NULL, &counterValue);
if ((ERROR_SUCCESS == status) && ((PDH_CSTATUS_VALID_DATA == counterValue.CStatus) ||
(PDH_CSTATUS_NEW_DATA == counterValue.CStatus))) {
memInfo->cached = counterValue.FirstValue;
}
/* Note that Windows does not have 'buffered memory' and hence, memInfo->buffered remains -1. */
memInfo->timestamp = (portLibrary->time_nano_time(portLibrary) / NANOSECS_PER_USEC);
memInfo->hostAvailPhysical = memInfo->availPhysical;
memInfo->hostCached = memInfo->cached;
memInfo->hostBuffered = memInfo->buffered;
Trc_PRT_sysinfo_get_memory_info_Exit(0);
PdhCloseQuery(statsHandle);
return 0;
}
uint64_t
omrsysinfo_get_addressable_physical_memory(struct OMRPortLibrary *portLibrary)
{
uint64_t memoryLimit = 0;
uint64_t usableMemory = portLibrary->sysinfo_get_physical_memory(portLibrary);
if (OMRPORT_LIMIT_LIMITED == portLibrary->sysinfo_get_limit(portLibrary, OMRPORT_RESOURCE_ADDRESS_SPACE, &memoryLimit)) {
/* there is a limit on the memory we can use so take the minimum of this usable amount and the physical memory */
usableMemory = OMR_MIN(memoryLimit, usableMemory);
}
return usableMemory;
}
/**
* Determine the size of the total physical memory in the system, in bytes.
*
* @param[in] portLibrary The port library.
*
* @return 0 if the information was unavailable, otherwise total physical memory in bytes.
*/
uint64_t
omrsysinfo_get_physical_memory(struct OMRPortLibrary *portLibrary)
{
MEMORYSTATUSEX aMemStatusEx;
aMemStatusEx.dwLength = sizeof(aMemStatusEx);
if (!GlobalMemoryStatusEx(&aMemStatusEx)) {
return J9CONST64(0);
}
return (uint64_t) aMemStatusEx.ullTotalPhys;
}
/**
* PortLibrary shutdown.
*
* This function is called during shutdown of the portLibrary. Any resources that were created by @ref omrsysinfo_startup
* should be destroyed here.
*
* @param[in] portLibrary The port library.
*
* @note Most implementations will be empty.
*/
void
omrsysinfo_shutdown(struct OMRPortLibrary *portLibrary)
{
if (NULL != portLibrary->portGlobals) {
#if defined(_WIN32_WINNT_WINBLUE) && (_WIN32_WINNT_MAXVER >= _WIN32_WINNT_WINBLUE)
PPG_si_osVersion = NULL;
#else
if (PPG_si_osVersion) {
portLibrary->mem_free_memory(portLibrary, PPG_si_osVersion);
PPG_si_osVersion = NULL;
}
#endif
if (NULL != PPG_si_osTypeOnHeap) {
portLibrary->mem_free_memory(portLibrary, PPG_si_osTypeOnHeap);
PPG_si_osTypeOnHeap = NULL;
}
/* Two conditions for PPG_si_osType, no need to free for both case:
* 1. pointing to same memory as PPG_si_osTypeOnHeap
* 2. pointing to static string
*/
PPG_si_osType = NULL;
if (NULL != PPG_si_executableName) {
portLibrary->mem_free_memory(portLibrary, PPG_si_executableName);