toolkit/components/processtools/ProcInfo_solaris.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #include "mozilla/ProcInfo.h"
   8 #include "mozilla/Sprintf.h"
   9 #include "mozilla/Logging.h"
  10 #include "mozilla/ScopeExit.h"
  11 #include "mozilla/ipc/GeckoChildProcessHost.h"
  12 #include "nsMemoryReporterManager.h"
  13 #include "nsWhitespaceTokenizer.h"
  14
  15 #include <cerrno>
  16 #include <cstdio>
  17 #include <cstring>
  18 #include <fcntl.h>
  19 #include <procfs.h>
  20 #include <sys/types.h>
  21 #include <sys/stat.h>
  22 #include <stdio.h>
  23 #include <unistd.h>
  24
  25 // Maximal length on /proc filename
  26 //  "/proc/999999/lwp/999999/lwpsinfo"
  27 //  "/proc/999999/psinfo"
  28 #define FNMAX_PROCFS "/proc/999999/lwp/999999/lwpsinfo"
  29
  30 namespace mozilla {
  31
  32 int GetCycleTimeFrequencyMHz() { return 0; }
  33
  34 nsresult GetCpuTimeSinceProcessStartInMs(uint64_t* aResult) {
  35   timespec t;
  36   if (clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &t) == 0) {
  37     uint64_t cpuTime =
  38         uint64_t(t.tv_sec) * 1'000'000'000u + uint64_t(t.tv_nsec);
  39     *aResult = cpuTime / PR_NSEC_PER_MSEC;
  40     return NS_OK;
  41   }
  42
  43   return NS_ERROR_FAILURE;
  44 }
  45
  46 nsresult GetGpuTimeSinceProcessStartInMs(uint64_t* aResult) {
  47   return NS_ERROR_NOT_IMPLEMENTED;
  48 }
  49
  50 ProcInfoPromise::ResolveOrRejectValue GetProcInfoSync(
  51     nsTArray<ProcInfoRequest>&& aRequests) {
  52   ProcInfoPromise::ResolveOrRejectValue result;
  53
  54   HashMap<base::ProcessId, ProcInfo> gathered;
  55   if (!gathered.reserve(aRequests.Length())) {
  56     result.SetReject(NS_ERROR_OUT_OF_MEMORY);
  57     return result;
  58   }
  59   for (const auto& request : aRequests) {
  60     ProcInfo info;
  61
  62     int fd;
  63     char filename[sizeof(FNMAX_PROCFS)];
  64     psinfo_t psinfo;
  65     snprintf(filename, sizeof(FNMAX_PROCFS), "/proc/%d/psinfo", request.pid);
  66     if ((fd = open(filename, O_RDONLY)) == -1) {
  67       result.SetReject(NS_ERROR_FAILURE);
  68       return result;
  69     }
  70     if (read(fd, &psinfo, sizeof(psinfo_t)) != sizeof(psinfo_t)) {
  71       close(fd);
  72       result.SetReject(NS_ERROR_FAILURE);
  73       return result;
  74     }
  75     close(fd);
  76     info.cpuTime =
  77         psinfo.pr_time.tv_sec * 1'000'000'000u + psinfo.pr_time.tv_nsec;
  78     info.memory = psinfo.pr_rssize * 1024;
  79
  80     // Extra info
  81     info.pid = request.pid;
  82     info.childId = request.childId;
  83     info.type = request.processType;
  84     info.origin = request.origin;
  85     info.windows = std::move(request.windowInfo);
  86     info.utilityActors = std::move(request.utilityInfo);
  87
  88     // Let's look at the threads
  89     for (int lwp = 1, lwp_max = psinfo.pr_nlwp; lwp <= lwp_max; lwp++) {
  90       lwpsinfo_t lwpsinfo;
  91       snprintf(filename, sizeof(FNMAX_PROCFS), "/proc/%d/lwp/%d/lwpsinfo",
  92                request.pid, lwp);
  93       if ((fd = open(filename, O_RDONLY)) == -1) {
  94         // Some LWPs might no longer exist. That just means that there are
  95         // probably others with bigger LWP id. But we need to limit the search
  96         // because of possible race condition.
  97         if (lwp_max < 2 * psinfo.pr_nlwp) lwp_max++;
  98         continue;
  99       }
 100       if (read(fd, &lwpsinfo, sizeof(lwpsinfo_t)) != sizeof(lwpsinfo_t)) {
 101         close(fd);
 102         continue;
 103       }
 104       close(fd);
 105       ThreadInfo threadInfo;
 106       threadInfo.tid = lwpsinfo.pr_lwpid;
 107       threadInfo.cpuTime =
 108           lwpsinfo.pr_time.tv_sec * 1'000'000'000u + lwpsinfo.pr_time.tv_nsec;
 109       threadInfo.name.AssignASCII(lwpsinfo.pr_name, strlen(lwpsinfo.pr_name));
 110       info.threads.AppendElement(threadInfo);
 111     }
 112
 113     if (!gathered.put(request.pid, std::move(info))) {
 114       result.SetReject(NS_ERROR_OUT_OF_MEMORY);
 115       return result;
 116     }
 117   }
 118
 119   // ... and we're done!
 120   result.SetResolve(std::move(gathered));
 121   return result;
 122 }
 123
 124 }  // namespace mozilla