6c32f9e521
This function is not used anywhere. In addition, gethostname uses a fixed host name, and sethostname is not implemented (sim/syscall_emul). If we were to handle sethostname too it would require a special conjoint implementation anyway. Change-Id: I20919a49b123a6a49582d9cfacf1fd167cb44776 Signed-off-by: Daniel R. Carvalho <odanrc@yahoo.com.br> Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/41394 Reviewed-by: Bobby R. Bruce <bbruce@ucdavis.edu> Maintainer: Bobby R. Bruce <bbruce@ucdavis.edu> Tested-by: kokoro <noreply+kokoro@google.com>
95 lines
3.1 KiB
C++
95 lines
3.1 KiB
C++
/*
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* Copyright (c) 2003-2005 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "base/hostinfo.hh"
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#ifdef __APPLE__
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#include <mach/mach_init.h>
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#include <mach/shared_region.h>
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#include <mach/task.h>
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#else
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#include <cstdio>
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#endif
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#include "base/logging.hh"
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#include "base/str.hh"
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#ifndef __APPLE__
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uint64_t
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procInfo(const char *filename, const char *target)
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{
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int done = 0;
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char line[80];
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char format[80];
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long usage;
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FILE *fp = fopen(filename, "r");
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while (fp && !feof(fp) && !done) {
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if (fgets(line, 80, fp)) {
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if (startswith(line, target)) {
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snprintf(format, sizeof(format), "%s %%ld", target);
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sscanf(line, format, &usage);
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fclose(fp);
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return usage;
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}
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}
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}
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if (fp)
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fclose(fp);
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return 0;
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}
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#endif
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uint64_t
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memUsage()
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{
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// For the Mach-based Darwin kernel, use the task_info of the self task
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#ifdef __APPLE__
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struct task_basic_info t_info;
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mach_msg_type_number_t t_info_count = TASK_BASIC_INFO_COUNT;
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if (KERN_SUCCESS != task_info(mach_task_self(),
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TASK_BASIC_INFO, (task_info_t)&t_info,
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&t_info_count)) {
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return 0;
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}
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// Mimic Darwin's implementation of top and subtract
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// SHARED_REGION_SIZE from the tasks virtual size to account for the
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// shared memory submap that is incorporated into every process.
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return (t_info.virtual_size - SHARED_REGION_SIZE) / 1024;
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#else
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// Linux implementation
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return procInfo("/proc/self/status", "VmSize:");
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#endif
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}
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