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