forked from mirrors/gecko-dev
115 lines
3.4 KiB
C++
115 lines
3.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/ProcInfo.h"
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#include "mozilla/Sprintf.h"
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#include "mozilla/Logging.h"
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#include "mozilla/ScopeExit.h"
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#include "mozilla/ipc/GeckoChildProcessHost.h"
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#include "nsMemoryReporterManager.h"
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#include "nsWhitespaceTokenizer.h"
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#include <sys/types.h>
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#include <sys/sysctl.h>
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#include <cerrno>
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#include <cstdio>
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#include <cstring>
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#include <unistd.h>
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namespace mozilla {
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int GetCycleTimeFrequencyMHz() { return 0; }
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nsresult GetCpuTimeSinceProcessStartInMs(uint64_t* aResult) {
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timespec t;
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if (clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &t) == 0) {
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uint64_t cpuTime =
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uint64_t(t.tv_sec) * 1'000'000'000u + uint64_t(t.tv_nsec);
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*aResult = cpuTime / PR_NSEC_PER_MSEC;
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return NS_OK;
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}
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return NS_ERROR_FAILURE;
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}
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nsresult GetGpuTimeSinceProcessStartInMs(uint64_t* aResult) {
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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ProcInfoPromise::ResolveOrRejectValue GetProcInfoSync(
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nsTArray<ProcInfoRequest>&& aRequests) {
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ProcInfoPromise::ResolveOrRejectValue result;
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HashMap<base::ProcessId, ProcInfo> gathered;
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if (!gathered.reserve(aRequests.Length())) {
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result.SetReject(NS_ERROR_OUT_OF_MEMORY);
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return result;
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}
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for (const auto& request : aRequests) {
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size_t size;
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int mib[6];
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mib[0] = CTL_KERN;
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mib[1] = KERN_PROC;
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mib[2] = KERN_PROC_PID | KERN_PROC_SHOW_THREADS;
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mib[3] = request.pid;
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mib[4] = sizeof(kinfo_proc);
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mib[5] = 0;
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if (sysctl(mib, 6, nullptr, &size, nullptr, 0) == -1) {
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// Can't get info for this process. Skip it.
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continue;
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}
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mib[5] = size / sizeof(kinfo_proc);
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auto procs = MakeUniqueFallible<kinfo_proc[]>(mib[5]);
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if (!procs) {
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result.SetReject(NS_ERROR_OUT_OF_MEMORY);
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return result;
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}
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if (sysctl(mib, 6, procs.get(), &size, nullptr, 0) == -1 &&
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errno != ENOMEM) {
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continue;
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}
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ProcInfo info;
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info.pid = request.pid;
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info.childId = request.childId;
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info.type = request.processType;
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info.origin = request.origin;
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info.windows = std::move(request.windowInfo);
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info.utilityActors = std::move(request.utilityInfo);
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bool found = false;
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for (size_t i = 0; i < size / sizeof(kinfo_proc); i++) {
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const auto& p = procs[i];
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if (p.p_tid == -1) {
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// This is the process.
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found = true;
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info.cpuTime = uint64_t(p.p_rtime_sec) * 1'000'000'000u +
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uint64_t(p.p_rtime_usec) * 1'000u;
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info.memory =
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(p.p_vm_tsize + p.p_vm_dsize + p.p_vm_ssize) * getpagesize();
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} else {
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// This is one of its threads.
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ThreadInfo threadInfo;
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threadInfo.tid = p.p_tid;
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threadInfo.cpuTime = uint64_t(p.p_rtime_sec) * 1'000'000'000u +
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uint64_t(p.p_rtime_usec) * 1'000u;
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info.threads.AppendElement(threadInfo);
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}
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}
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if (found && !gathered.put(request.pid, std::move(info))) {
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result.SetReject(NS_ERROR_OUT_OF_MEMORY);
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return result;
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}
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}
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// ... and we're done!
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result.SetResolve(std::move(gathered));
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return result;
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}
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} // namespace mozilla
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