1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 #include "macros.h" 23 #include <tlhelp32.h> 24 25 IMPLEMENT_THUNK( psapi, WINDOWS, BOOL, WINAPI, EnumProcesses, ( LPDWORD lpProcesses, DWORD cbSize, LPDWORD lpcbCopied ) ) 26 { 27 BOOL fSuccess = FALSE; 28 HANDLE hSnapshot = CreateToolhelp32Snapshot( TH32CS_SNAPPROCESS, 0 ); 29 30 if ( IsValidHandle( hSnapshot ) ) 31 { 32 PROCESSENTRY32 pe; 33 34 if ( lpcbCopied ) 35 *lpcbCopied = 0; 36 37 pe.dwSize = sizeof(pe); 38 if ( Process32First( hSnapshot, &pe ) ) 39 { 40 fSuccess = TRUE; 41 42 while ( cbSize >= sizeof(*lpProcesses) ) 43 { 44 *(lpProcesses++) = pe.th32ProcessID; 45 if ( lpcbCopied ) 46 *lpcbCopied += sizeof(*lpProcesses); 47 cbSize -= sizeof(*lpProcesses); 48 49 if ( !Process32Next( hSnapshot, &pe ) ) 50 break; 51 } 52 } 53 54 CloseHandle( hSnapshot ); 55 } 56 else 57 SetLastError( ERROR_INVALID_HANDLE ); 58 59 return fSuccess; 60 } 61 62 63