19d23e04c43dbb8480bea8be28b8a2f37423bec49Elliott Hughes/* 29d23e04c43dbb8480bea8be28b8a2f37423bec49Elliott Hughes * Copyright (C) 2008 The Android Open Source Project 39d23e04c43dbb8480bea8be28b8a2f37423bec49Elliott Hughes * All rights reserved. 49d23e04c43dbb8480bea8be28b8a2f37423bec49Elliott Hughes * 59d23e04c43dbb8480bea8be28b8a2f37423bec49Elliott Hughes * Redistribution and use in source and binary forms, with or without 69d23e04c43dbb8480bea8be28b8a2f37423bec49Elliott Hughes * modification, are permitted provided that the following conditions 79d23e04c43dbb8480bea8be28b8a2f37423bec49Elliott Hughes * are met: 89d23e04c43dbb8480bea8be28b8a2f37423bec49Elliott Hughes * * Redistributions of source code must retain the above copyright 99d23e04c43dbb8480bea8be28b8a2f37423bec49Elliott Hughes * notice, this list of conditions and the following disclaimer. 109d23e04c43dbb8480bea8be28b8a2f37423bec49Elliott Hughes * * Redistributions in binary form must reproduce the above copyright 119d23e04c43dbb8480bea8be28b8a2f37423bec49Elliott Hughes * notice, this list of conditions and the following disclaimer in 129d23e04c43dbb8480bea8be28b8a2f37423bec49Elliott Hughes * the documentation and/or other materials provided with the 139d23e04c43dbb8480bea8be28b8a2f37423bec49Elliott Hughes * distribution. 149d23e04c43dbb8480bea8be28b8a2f37423bec49Elliott Hughes * 159d23e04c43dbb8480bea8be28b8a2f37423bec49Elliott Hughes * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 169d23e04c43dbb8480bea8be28b8a2f37423bec49Elliott Hughes * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 179d23e04c43dbb8480bea8be28b8a2f37423bec49Elliott Hughes * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 189d23e04c43dbb8480bea8be28b8a2f37423bec49Elliott Hughes * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 199d23e04c43dbb8480bea8be28b8a2f37423bec49Elliott Hughes * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 209d23e04c43dbb8480bea8be28b8a2f37423bec49Elliott Hughes * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 219d23e04c43dbb8480bea8be28b8a2f37423bec49Elliott Hughes * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 229d23e04c43dbb8480bea8be28b8a2f37423bec49Elliott Hughes * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 239d23e04c43dbb8480bea8be28b8a2f37423bec49Elliott Hughes * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 249d23e04c43dbb8480bea8be28b8a2f37423bec49Elliott Hughes * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 259d23e04c43dbb8480bea8be28b8a2f37423bec49Elliott Hughes * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 269d23e04c43dbb8480bea8be28b8a2f37423bec49Elliott Hughes * SUCH DAMAGE. 279d23e04c43dbb8480bea8be28b8a2f37423bec49Elliott Hughes */ 289d23e04c43dbb8480bea8be28b8a2f37423bec49Elliott Hughes 299d23e04c43dbb8480bea8be28b8a2f37423bec49Elliott Hughes#include <errno.h> 309d23e04c43dbb8480bea8be28b8a2f37423bec49Elliott Hughes 31673b15e4ee2c6d99b150aedddc0f389e29f98e1bYabin Cui#include "pthread_internal.h" 329d23e04c43dbb8480bea8be28b8a2f37423bec49Elliott Hughes 339d23e04c43dbb8480bea8be28b8a2f37423bec49Elliott Hughesint pthread_getcpuclockid(pthread_t t, clockid_t* clockid) { 34673b15e4ee2c6d99b150aedddc0f389e29f98e1bYabin Cui pthread_internal_t* thread = __pthread_internal_find(t); 35673b15e4ee2c6d99b150aedddc0f389e29f98e1bYabin Cui if (thread == NULL) { 369d23e04c43dbb8480bea8be28b8a2f37423bec49Elliott Hughes return ESRCH; 379d23e04c43dbb8480bea8be28b8a2f37423bec49Elliott Hughes } 389d23e04c43dbb8480bea8be28b8a2f37423bec49Elliott Hughes 399b06cc3c1b2c4e2b08582f3fc9393a05aa589766Jeff Hao // The tid is stored in the top bits, but negated. 409b06cc3c1b2c4e2b08582f3fc9393a05aa589766Jeff Hao clockid_t result = ~static_cast<clockid_t>(thread->tid) << 3; 419b06cc3c1b2c4e2b08582f3fc9393a05aa589766Jeff Hao // Bits 0 and 1: clock type (0 = CPUCLOCK_PROF, 1 = CPUCLOCK_VIRT, 2 = CPUCLOCK_SCHED). 429b06cc3c1b2c4e2b08582f3fc9393a05aa589766Jeff Hao result |= 2; 439b06cc3c1b2c4e2b08582f3fc9393a05aa589766Jeff Hao // Bit 2: thread (set) or process (clear)? 449b06cc3c1b2c4e2b08582f3fc9393a05aa589766Jeff Hao result |= (1 << 2); 459b06cc3c1b2c4e2b08582f3fc9393a05aa589766Jeff Hao 469b06cc3c1b2c4e2b08582f3fc9393a05aa589766Jeff Hao *clockid = result; 479d23e04c43dbb8480bea8be28b8a2f37423bec49Elliott Hughes return 0; 489d23e04c43dbb8480bea8be28b8a2f37423bec49Elliott Hughes} 49