linux-sgx-trts-modified/psw/urts/linux/misc.cpp

/*
 * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *   * Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in
 *     the documentation and/or other materials provided with the
 *     distribution.
 *   * Neither the name of Intel Corporation nor the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */


#include "se_wrapper.h"
#include <dirent.h>
#include <vector>

using namespace std;

//get all thread id of current process.
void get_thread_set(vector<se_thread_id_t> &thread_vector)
{
    DIR*   dir = NULL;
    struct dirent* dirent = NULL;

    if(NULL == (dir = opendir("/proc/self/task")))
    {
        SE_TRACE(SE_TRACE_WARNING, "Failed to open /proc/slef/task\n");
    }
    else
    {
        while(NULL != (dirent=readdir(dir)))
        {
            se_thread_id_t tid = (se_thread_id_t)strtol(dirent->d_name, NULL, 10);

            if(!tid) continue; //dir name may be . or ..
            thread_vector.push_back(tid);
            SE_TRACE(SE_TRACE_DEBUG, "tid = %d\n", (int)tid);
        }
        closedir(dir);
    }
}