content/common/child_process_messages.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 // Common IPC messages used for child processes.
   6 // Multiply-included message file, hence no include guard.
   7
   8 #include <string>
   9 #include <vector>
  10
  11 #include "base/shared_memory.h"
  12 #include "base/tracked_objects.h"
  13 #include "base/values.h"
  14 #include "content/common/content_export.h"
  15 #include "googleurl/src/gurl.h"
  16 #include "ipc/ipc_message_macros.h"
  17
  18 IPC_ENUM_TRAITS(tracked_objects::ThreadData::Status)
  19
  20 IPC_STRUCT_TRAITS_BEGIN(tracked_objects::LocationSnapshot)
  21   IPC_STRUCT_TRAITS_MEMBER(file_name)
  22   IPC_STRUCT_TRAITS_MEMBER(function_name)
  23   IPC_STRUCT_TRAITS_MEMBER(line_number)
  24 IPC_STRUCT_TRAITS_END()
  25
  26 IPC_STRUCT_TRAITS_BEGIN(tracked_objects::BirthOnThreadSnapshot)
  27   IPC_STRUCT_TRAITS_MEMBER(location)
  28   IPC_STRUCT_TRAITS_MEMBER(thread_name)
  29 IPC_STRUCT_TRAITS_END()
  30
  31 IPC_STRUCT_TRAITS_BEGIN(tracked_objects::DeathDataSnapshot)
  32   IPC_STRUCT_TRAITS_MEMBER(count)
  33   IPC_STRUCT_TRAITS_MEMBER(run_duration_sum)
  34   IPC_STRUCT_TRAITS_MEMBER(run_duration_max)
  35   IPC_STRUCT_TRAITS_MEMBER(run_duration_sample)
  36   IPC_STRUCT_TRAITS_MEMBER(queue_duration_sum)
  37   IPC_STRUCT_TRAITS_MEMBER(queue_duration_max)
  38   IPC_STRUCT_TRAITS_MEMBER(queue_duration_sample)
  39 IPC_STRUCT_TRAITS_END()
  40
  41 IPC_STRUCT_TRAITS_BEGIN(tracked_objects::TaskSnapshot)
  42   IPC_STRUCT_TRAITS_MEMBER(birth)
  43   IPC_STRUCT_TRAITS_MEMBER(death_data)
  44   IPC_STRUCT_TRAITS_MEMBER(death_thread_name)
  45 IPC_STRUCT_TRAITS_END()
  46
  47 IPC_STRUCT_TRAITS_BEGIN(tracked_objects::ParentChildPairSnapshot)
  48   IPC_STRUCT_TRAITS_MEMBER(parent)
  49   IPC_STRUCT_TRAITS_MEMBER(child)
  50 IPC_STRUCT_TRAITS_END()
  51
  52 IPC_STRUCT_TRAITS_BEGIN(tracked_objects::ProcessDataSnapshot)
  53   IPC_STRUCT_TRAITS_MEMBER(tasks)
  54   IPC_STRUCT_TRAITS_MEMBER(descendants)
  55   IPC_STRUCT_TRAITS_MEMBER(process_id)
  56 IPC_STRUCT_TRAITS_END()
  57
  58 #undef IPC_MESSAGE_EXPORT
  59 #define IPC_MESSAGE_EXPORT CONTENT_EXPORT
  60
  61 #define IPC_MESSAGE_START ChildProcessMsgStart
  62
  63 // Messages sent from the browser to the child process.
  64
  65 // Sent in response to ChildProcessHostMsg_ShutdownRequest to tell the child
  66 // process that it's safe to shutdown.
  67 IPC_MESSAGE_CONTROL0(ChildProcessMsg_Shutdown)
  68
  69 #if defined(IPC_MESSAGE_LOG_ENABLED)
  70 // Tell the child process to begin or end IPC message logging.
  71 IPC_MESSAGE_CONTROL1(ChildProcessMsg_SetIPCLoggingEnabled,
  72                      bool /* on or off */)
  73 #endif
  74
  75 // Tell the child process to enable or disable the profiler status.
  76 IPC_MESSAGE_CONTROL1(ChildProcessMsg_SetProfilerStatus,
  77                      tracked_objects::ThreadData::Status /* profiler status */)
  78
  79 // Send to all the child processes to send back profiler data (ThreadData in
  80 // tracked_objects).
  81 IPC_MESSAGE_CONTROL1(ChildProcessMsg_GetChildProfilerData,
  82                      int /* sequence_number */)
  83
  84 // Send to all the child processes to send back histogram data.
  85 IPC_MESSAGE_CONTROL1(ChildProcessMsg_GetChildHistogramData,
  86                      int /* sequence_number */)
  87
  88 // Sent to child processes to dump their handle table.
  89 IPC_MESSAGE_CONTROL0(ChildProcessMsg_DumpHandles)
  90
  91 #if defined(USE_TCMALLOC)
  92 // Sent to child process to request tcmalloc stats.
  93 IPC_MESSAGE_CONTROL0(ChildProcessMsg_GetTcmallocStats)
  94 #endif
  95
  96 ////////////////////////////////////////////////////////////////////////////////
  97 // Messages sent from the child process to the browser.
  98
  99 IPC_MESSAGE_CONTROL0(ChildProcessHostMsg_ShutdownRequest)
 100
 101 // Send back profiler data (ThreadData in tracked_objects).
 102 IPC_MESSAGE_CONTROL2(ChildProcessHostMsg_ChildProfilerData,
 103                      int, /* sequence_number */
 104                      tracked_objects::ProcessDataSnapshot /* profiler_data */)
 105
 106 // Send back histograms as vector of pickled-histogram strings.
 107 IPC_MESSAGE_CONTROL2(ChildProcessHostMsg_ChildHistogramData,
 108                      int, /* sequence_number */
 109                      std::vector<std::string> /* histogram_data */)
 110
 111 // Request a histogram from the browser. The browser will send the histogram
 112 // data only if it has been passed the command line flag
 113 // switches::kDomAutomationController.
 114 IPC_SYNC_MESSAGE_CONTROL1_1(ChildProcessHostMsg_GetBrowserHistogram,
 115                             std::string, /* histogram_name */
 116                             std::string /* histogram_json */)
 117
 118 // Reply to ChildProcessMsg_DumpHandles when handle table dump is complete.
 119 IPC_MESSAGE_CONTROL0(ChildProcessHostMsg_DumpHandlesDone)
 120
 121 #if defined(OS_WIN)
 122 // Request that the given font be loaded by the host so it's cached by the
 123 // OS. Please see ChildProcessHost::PreCacheFont for details.
 124 IPC_SYNC_MESSAGE_CONTROL1_0(ChildProcessHostMsg_PreCacheFont,
 125                             LOGFONT /* font data */)
 126
 127 // Release the cached font
 128 IPC_MESSAGE_CONTROL0(ChildProcessHostMsg_ReleaseCachedFonts)
 129 #endif  // defined(OS_WIN)
 130
 131 // Asks the browser to create a block of shared memory for the child process to
 132 // fill in and pass back to the browser.
 133 IPC_SYNC_MESSAGE_CONTROL1_1(ChildProcessHostMsg_SyncAllocateSharedMemory,
 134                             uint32 /* buffer size */,
 135                             base::SharedMemoryHandle)
 136
 137 #if defined(USE_TCMALLOC)
 138 // Reply to ChildProcessMsg_GetTcmallocStats.
 139 IPC_MESSAGE_CONTROL1(ChildProcessHostMsg_TcmallocStats,
 140                      std::string /* output */)
 141 #endif