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/memory/shared_memory.h"
  12 #include "base/tracked_objects.h"
  13 #include "base/values.h"
  14 #include "content/common/content_export.h"
  15 #include "ipc/ipc_message_macros.h"
  16 #include "ui/gfx/gpu_memory_buffer.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 IPC_ENUM_TRAITS(gfx::GpuMemoryBufferType)
  59
  60 IPC_STRUCT_TRAITS_BEGIN(gfx::GpuMemoryBufferHandle)
  61   IPC_STRUCT_TRAITS_MEMBER(type)
  62   IPC_STRUCT_TRAITS_MEMBER(handle)
  63 IPC_STRUCT_TRAITS_END()
  64
  65 #undef IPC_MESSAGE_EXPORT
  66 #define IPC_MESSAGE_EXPORT CONTENT_EXPORT
  67
  68 #define IPC_MESSAGE_START ChildProcessMsgStart
  69
  70 // Messages sent from the browser to the child process.
  71
  72 // Sent in response to ChildProcessHostMsg_ShutdownRequest to tell the child
  73 // process that it's safe to shutdown.
  74 IPC_MESSAGE_CONTROL0(ChildProcessMsg_Shutdown)
  75
  76 #if defined(IPC_MESSAGE_LOG_ENABLED)
  77 // Tell the child process to begin or end IPC message logging.
  78 IPC_MESSAGE_CONTROL1(ChildProcessMsg_SetIPCLoggingEnabled,
  79                      bool /* on or off */)
  80 #endif
  81
  82 // Tell the child process to enable or disable the profiler status.
  83 IPC_MESSAGE_CONTROL1(ChildProcessMsg_SetProfilerStatus,
  84                      tracked_objects::ThreadData::Status /* profiler status */)
  85
  86 // Send to all the child processes to send back profiler data (ThreadData in
  87 // tracked_objects).
  88 IPC_MESSAGE_CONTROL1(ChildProcessMsg_GetChildProfilerData,
  89                      int /* sequence_number */)
  90
  91 // Send to all the child processes to send back histogram data.
  92 IPC_MESSAGE_CONTROL1(ChildProcessMsg_GetChildHistogramData,
  93                      int /* sequence_number */)
  94
  95 // Sent to child processes to dump their handle table.
  96 IPC_MESSAGE_CONTROL0(ChildProcessMsg_DumpHandles)
  97
  98 #if defined(USE_TCMALLOC)
  99 // Sent to child process to request tcmalloc stats.
 100 IPC_MESSAGE_CONTROL0(ChildProcessMsg_GetTcmallocStats)
 101 #endif
 102
 103 ////////////////////////////////////////////////////////////////////////////////
 104 // Messages sent from the child process to the browser.
 105
 106 IPC_MESSAGE_CONTROL0(ChildProcessHostMsg_ShutdownRequest)
 107
 108 // Send back profiler data (ThreadData in tracked_objects).
 109 IPC_MESSAGE_CONTROL2(ChildProcessHostMsg_ChildProfilerData,
 110                      int, /* sequence_number */
 111                      tracked_objects::ProcessDataSnapshot /* profiler_data */)
 112
 113 // Send back histograms as vector of pickled-histogram strings.
 114 IPC_MESSAGE_CONTROL2(ChildProcessHostMsg_ChildHistogramData,
 115                      int, /* sequence_number */
 116                      std::vector<std::string> /* histogram_data */)
 117
 118 // Request a histogram from the browser. The browser will send the histogram
 119 // data only if it has been passed the command line flag
 120 // switches::kDomAutomationController.
 121 IPC_SYNC_MESSAGE_CONTROL1_1(ChildProcessHostMsg_GetBrowserHistogram,
 122                             std::string, /* histogram_name */
 123                             std::string /* histogram_json */)
 124
 125 // Reply to ChildProcessMsg_DumpHandles when handle table dump is complete.
 126 IPC_MESSAGE_CONTROL0(ChildProcessHostMsg_DumpHandlesDone)
 127
 128 #if defined(OS_WIN)
 129 // Request that the given font be loaded by the host so it's cached by the
 130 // OS. Please see ChildProcessHost::PreCacheFont for details.
 131 IPC_SYNC_MESSAGE_CONTROL1_0(ChildProcessHostMsg_PreCacheFont,
 132                             LOGFONT /* font data */)
 133
 134 // Release the cached font
 135 IPC_MESSAGE_CONTROL0(ChildProcessHostMsg_ReleaseCachedFonts)
 136 #endif  // defined(OS_WIN)
 137
 138 // Asks the browser to create a block of shared memory for the child process to
 139 // fill in and pass back to the browser.
 140 IPC_SYNC_MESSAGE_CONTROL1_1(ChildProcessHostMsg_SyncAllocateSharedMemory,
 141                             uint32 /* buffer size */,
 142                             base::SharedMemoryHandle)
 143
 144 #if defined(USE_TCMALLOC)
 145 // Reply to ChildProcessMsg_GetTcmallocStats.
 146 IPC_MESSAGE_CONTROL1(ChildProcessHostMsg_TcmallocStats,
 147                      std::string /* output */)
 148 #endif
 149
 150 // Asks the browser to create a gpu memory buffer.
 151 IPC_SYNC_MESSAGE_CONTROL1_1(ChildProcessHostMsg_SyncAllocateGpuMemoryBuffer,
 152                             uint32 /* buffer size */,
 153                             gfx::GpuMemoryBufferHandle)