1 /* 2 * Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 #include "jni.h" 27 #include "jni_util.h" 28 #include "java_lang_ProcessHandleImpl.h" 29 #include "java_lang_ProcessHandleImpl_Info.h" 30 31 #include "ProcessHandleImpl_unix.h" 32 33 #include <sys/procfs.h> 34 35 /* 36 * Implementation of native ProcessHandleImpl functions for AIX. 37 * See ProcessHandleImpl_unix.c for more details. 38 */ 39 40 void os_init(JNIEnv *env, jclass clazz) {} 41 42 /* 43 * Returns the parent pid of a given pid, or -1 if not found 44 */ 45 pid_t os_parentPid(JNIEnv *env, pid_t pid) { 46 FILE* fp; 47 pstatus_t pstatus; 48 int statlen; 49 char fn[32]; 50 int i, p; 51 char* s; 52 53 /* 54 * Try to open /proc/%d/status 55 */ 56 snprintf(fn, sizeof fn, "/proc/%d/status", pid); 57 fp = fopen(fn, "r"); 58 if (fp == NULL) { 59 return -1; 60 } 61 62 statlen = fread(&pstatus, 1, (sizeof pstatus), fp); 63 fclose(fp); 64 if (statlen < 0) { 65 return -1; 66 } 67 return (pid_t) pstatus.pr_ppid; 68 } 69 70 jint os_getChildren(JNIEnv *env, jlong jpid, 71 jlongArray jarray, jlongArray jparentArray) { 72 return unix_getChildren(env, jpid, jarray, jparentArray); 73 } 74 75 void os_getStatInfo(JNIEnv *env, jobject jinfo, pid_t pid) { 76 unix_getStatInfo(env, jinfo, pid); 77 } 78 79 void os_getCmdlineInfo(JNIEnv *env, jobject jinfo, pid_t pid) { 80 unix_getCmdlineInfo(env, jinfo, pid); 81 }