/
omrsysinfo.c
1800 lines (1594 loc) · 59.8 KB
/
omrsysinfo.c
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/*******************************************************************************
* Copyright (c) 2015, 2019 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 = getX86Description(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_OS_FEATURES_SIZE * 32))) {
uint32_t featureIndex = feature / 32;
uint32_t featureShift = feature % 32;
rc = OMR_ARE_ALL_BITS_SET(desc->features[featureIndex], 1 << featureShift);
}
Trc_PRT_sysinfo_processor_has_feature_Exit((uintptr_t)rc);
return rc;
}
#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);
PPG_si_executableName = NULL;
}
}
}
/**
* PortLibrary startup.
*
* This function is called during startup of the portLibrary. Any resources that are required for
* the system information operations may be created here. All resources created here should be destroyed
* in @ref omrsysinfo_shutdown.
*
* @param[in] portLibrary The port library.
*
* @return 0 on success, negative error code on failure. Error code values returned are
* \arg OMRPORT_ERROR_STARTUP_SYSINFO
*
* @note Most implementations will simply return success.
*/
int32_t
omrsysinfo_startup(struct OMRPortLibrary *portLibrary)
{
PPG_isRunningInContainer = FALSE;
/* Obtain and cache executable name; if this fails, executable name remains NULL, but
* shouldn't cause failure to startup port library. Failure will be noticed only
* when the omrsysinfo_get_executable_name() actually gets invoked.
*/
(void) find_executable_name(portLibrary, &PPG_si_executableName);
return 0;
}
/**
* Query the operating system for the name of the user associate with the current thread
*
* Obtain the value of the name of the user associated with the current thread, and then write it out into the buffer
* supplied by the user
*
* @param[in] portLibrary The port Library
* @param[out] buffer Buffer for the name of the user
* @param[in,out] length The length of the buffer
*
* @return 0 on success, number of bytes required to hold the
* information if the output buffer was too small, -1 on failure.
*
* @note buffer is undefined on error or when supplied buffer was too small.
*/
intptr_t
omrsysinfo_get_username(struct OMRPortLibrary *portLibrary, char *buffer, uintptr_t length)
{
DWORD rc, nameLength;
wchar_t *unicodeBuffer;
intptr_t result;
nameLength = (DWORD)length;
unicodeBuffer = portLibrary->mem_allocate_memory(portLibrary, nameLength * 2, OMR_GET_CALLSITE(), OMRMEM_CATEGORY_PORT_LIBRARY);
if (NULL == unicodeBuffer) {
return -1;
}
rc = GetUserNameW(unicodeBuffer, &nameLength);
/* If the function succeeds, the return value is the number of characters stored into
the buffer, including the terminating null character. If the buffer is not large enough,
call fails and the required size is stored in nameLength.
*/
if (0 == rc) {
if (ERROR_INSUFFICIENT_BUFFER == GetLastError()) {
/* overestimate */
result = nameLength * 3;
} else {
result = -1;
}
} else {
/* convert */
rc = WideCharToMultiByte(OS_ENCODING_CODE_PAGE, OS_ENCODING_WC_FLAGS, unicodeBuffer, -1, NULL, 0, NULL, NULL);
if (0 == rc) {
result = -1;
} else {
if (rc > length) {
/* buffer is too small */
result = rc;
} else {
WideCharToMultiByte(OS_ENCODING_CODE_PAGE, OS_ENCODING_WC_FLAGS, unicodeBuffer, -1, buffer, (int)length, NULL, NULL);
result = 0;
}