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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "content/browser/child_process_launcher.h" | 5 #include "content/browser/child_process_launcher.h" |
| 6 | 6 |
| 7 #include <utility> // For std::pair. | 7 #include <utility> // For std::pair. |
| 8 | 8 |
| 9 #include "base/bind.h" | 9 #include "base/bind.h" |
| 10 #include "base/command_line.h" | 10 #include "base/command_line.h" |
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| 31 #elif defined(OS_POSIX) | 31 #elif defined(OS_POSIX) |
| 32 #include "base/memory/singleton.h" | 32 #include "base/memory/singleton.h" |
| 33 #include "content/browser/renderer_host/render_sandbox_host_linux.h" | 33 #include "content/browser/renderer_host/render_sandbox_host_linux.h" |
| 34 #include "content/browser/zygote_host/zygote_host_impl_linux.h" | 34 #include "content/browser/zygote_host/zygote_host_impl_linux.h" |
| 35 #endif | 35 #endif |
| 36 | 36 |
| 37 #if defined(OS_POSIX) | 37 #if defined(OS_POSIX) |
| 38 #include "base/global_descriptors_posix.h" | 38 #include "base/global_descriptors_posix.h" |
| 39 #endif | 39 #endif |
| 40 | 40 |
| 41 using content::BrowserThread; | 41 namespace content { |
| 42 | 42 |
| 43 // Having the functionality of ChildProcessLauncher be in an internal | 43 // Having the functionality of ChildProcessLauncher be in an internal |
| 44 // ref counted object allows us to automatically terminate the process when the | 44 // ref counted object allows us to automatically terminate the process when the |
| 45 // parent class destructs, while still holding on to state that we need. | 45 // parent class destructs, while still holding on to state that we need. |
| 46 class ChildProcessLauncher::Context | 46 class ChildProcessLauncher::Context |
| 47 : public base::RefCountedThreadSafe<ChildProcessLauncher::Context> { | 47 : public base::RefCountedThreadSafe<ChildProcessLauncher::Context> { |
| 48 public: | 48 public: |
| 49 Context() | 49 Context() |
| 50 : client_(NULL), | 50 : client_(NULL), |
| 51 client_thread_id_(BrowserThread::UI), | 51 client_thread_id_(BrowserThread::UI), |
| 52 termination_status_(base::TERMINATION_STATUS_NORMAL_TERMINATION), | 52 termination_status_(base::TERMINATION_STATUS_NORMAL_TERMINATION), |
| 53 exit_code_(content::RESULT_CODE_NORMAL_EXIT), | 53 exit_code_(RESULT_CODE_NORMAL_EXIT), |
| 54 starting_(true) | 54 starting_(true) |
| 55 #if defined(OS_POSIX) && !defined(OS_MACOSX) && !defined(OS_ANDROID) | 55 #if defined(OS_POSIX) && !defined(OS_MACOSX) && !defined(OS_ANDROID) |
| 56 , zygote_(false) | 56 , zygote_(false) |
| 57 #endif | 57 #endif |
| 58 { | 58 { |
| 59 #if defined(OS_POSIX) | 59 #if defined(OS_POSIX) |
| 60 terminate_child_on_shutdown_ = !CommandLine::ForCurrentProcess()-> | 60 terminate_child_on_shutdown_ = !CommandLine::ForCurrentProcess()-> |
| 61 HasSwitch(switches::kChildCleanExit); | 61 HasSwitch(switches::kChildCleanExit); |
| 62 #else | 62 #else |
| 63 terminate_child_on_shutdown_ = true; | 63 terminate_child_on_shutdown_ = true; |
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| 159 #endif | 159 #endif |
| 160 CommandLine* cmd_line) { | 160 CommandLine* cmd_line) { |
| 161 scoped_ptr<CommandLine> cmd_line_deleter(cmd_line); | 161 scoped_ptr<CommandLine> cmd_line_deleter(cmd_line); |
| 162 | 162 |
| 163 #if defined(OS_WIN) | 163 #if defined(OS_WIN) |
| 164 base::ProcessHandle handle = sandbox::StartProcessWithAccess( | 164 base::ProcessHandle handle = sandbox::StartProcessWithAccess( |
| 165 cmd_line, exposed_dir); | 165 cmd_line, exposed_dir); |
| 166 #elif defined(OS_ANDROID) | 166 #elif defined(OS_ANDROID) |
| 167 std::string process_type = | 167 std::string process_type = |
| 168 cmd_line->GetSwitchValueASCII(switches::kProcessType); | 168 cmd_line->GetSwitchValueASCII(switches::kProcessType); |
| 169 std::vector<content::FileDescriptorInfo> files_to_register; | 169 std::vector<FileDescriptorInfo> files_to_register; |
| 170 files_to_register.push_back( | 170 files_to_register.push_back( |
| 171 content::FileDescriptorInfo(kPrimaryIPCChannel, | 171 FileDescriptorInfo(kPrimaryIPCChannel, |
| 172 base::FileDescriptor(ipcfd, false))); | 172 base::FileDescriptor(ipcfd, false))); |
| 173 | 173 |
| 174 content::GetContentClient()->browser()-> | 174 GetContentClient()->browser()-> |
| 175 GetAdditionalMappedFilesForChildProcess(*cmd_line, &files_to_register); | 175 GetAdditionalMappedFilesForChildProcess(*cmd_line, &files_to_register); |
| 176 | 176 |
| 177 content::StartSandboxedProcess(cmd_line->argv(), files_to_register, | 177 StartSandboxedProcess(cmd_line->argv(), files_to_register, |
| 178 base::Bind(&ChildProcessLauncher::Context::OnSandboxedProcessStarted, | 178 base::Bind(&ChildProcessLauncher::Context::OnSandboxedProcessStarted, |
| 179 this_object, client_thread_id)); | 179 this_object, client_thread_id)); |
| 180 | 180 |
| 181 #elif defined(OS_POSIX) | 181 #elif defined(OS_POSIX) |
| 182 base::ProcessHandle handle = base::kNullProcessHandle; | 182 base::ProcessHandle handle = base::kNullProcessHandle; |
| 183 // We need to close the client end of the IPC channel to reliably detect | 183 // We need to close the client end of the IPC channel to reliably detect |
| 184 // child termination. | 184 // child termination. |
| 185 file_util::ScopedFD ipcfd_closer(&ipcfd); | 185 file_util::ScopedFD ipcfd_closer(&ipcfd); |
| 186 | 186 |
| 187 std::string process_type = | 187 std::string process_type = |
| 188 cmd_line->GetSwitchValueASCII(switches::kProcessType); | 188 cmd_line->GetSwitchValueASCII(switches::kProcessType); |
| 189 std::vector<content::FileDescriptorInfo> files_to_register; | 189 std::vector<FileDescriptorInfo> files_to_register; |
| 190 files_to_register.push_back( | 190 files_to_register.push_back( |
| 191 content::FileDescriptorInfo(kPrimaryIPCChannel, | 191 FileDescriptorInfo(kPrimaryIPCChannel, |
| 192 base::FileDescriptor(ipcfd, false))); | 192 base::FileDescriptor(ipcfd, false))); |
| 193 | 193 |
| 194 #if !defined(OS_MACOSX) | 194 #if !defined(OS_MACOSX) |
| 195 content::GetContentClient()->browser()-> | 195 GetContentClient()->browser()-> |
| 196 GetAdditionalMappedFilesForChildProcess(*cmd_line, &files_to_register); | 196 GetAdditionalMappedFilesForChildProcess(*cmd_line, &files_to_register); |
| 197 if (use_zygote) { | 197 if (use_zygote) { |
| 198 handle = ZygoteHostImpl::GetInstance()->ForkRequest(cmd_line->argv(), | 198 handle = ZygoteHostImpl::GetInstance()->ForkRequest(cmd_line->argv(), |
| 199 files_to_register, | 199 files_to_register, |
| 200 process_type); | 200 process_type); |
| 201 } else | 201 } else |
| 202 // Fall through to the normal posix case below when we're not zygoting. | 202 // Fall through to the normal posix case below when we're not zygoting. |
| 203 #endif // !defined(OS_MACOSX) | 203 #endif // !defined(OS_MACOSX) |
| 204 { | 204 { |
| 205 // Convert FD mapping to FileHandleMappingVector | 205 // Convert FD mapping to FileHandleMappingVector |
| 206 base::FileHandleMappingVector fds_to_map; | 206 base::FileHandleMappingVector fds_to_map; |
| 207 for (std::vector<content::FileDescriptorInfo>::const_iterator | 207 for (std::vector<FileDescriptorInfo>::const_iterator |
| 208 i = files_to_register.begin(); i != files_to_register.end(); ++i) { | 208 i = files_to_register.begin(); i != files_to_register.end(); ++i) { |
| 209 const content::FileDescriptorInfo& fd_info = *i; | 209 const FileDescriptorInfo& fd_info = *i; |
| 210 fds_to_map.push_back(std::make_pair( | 210 fds_to_map.push_back(std::make_pair( |
| 211 fd_info.fd.fd, | 211 fd_info.fd.fd, |
| 212 fd_info.id + base::GlobalDescriptors::kBaseDescriptor)); | 212 fd_info.id + base::GlobalDescriptors::kBaseDescriptor)); |
| 213 } | 213 } |
| 214 | 214 |
| 215 #if !defined(OS_MACOSX) | 215 #if !defined(OS_MACOSX) |
| 216 if (process_type == switches::kRendererProcess) { | 216 if (process_type == switches::kRendererProcess) { |
| 217 const int sandbox_fd = | 217 const int sandbox_fd = |
| 218 RenderSandboxHostLinux::GetInstance()->GetRendererSocket(); | 218 RenderSandboxHostLinux::GetInstance()->GetRendererSocket(); |
| 219 fds_to_map.push_back(std::make_pair( | 219 fds_to_map.push_back(std::make_pair( |
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| 321 process.SetProcessBackgrounded(background); | 321 process.SetProcessBackgrounded(background); |
| 322 } | 322 } |
| 323 | 323 |
| 324 static void TerminateInternal( | 324 static void TerminateInternal( |
| 325 #if defined(OS_POSIX) && !defined(OS_MACOSX) && !defined(OS_ANDROID) | 325 #if defined(OS_POSIX) && !defined(OS_MACOSX) && !defined(OS_ANDROID) |
| 326 bool zygote, | 326 bool zygote, |
| 327 #endif | 327 #endif |
| 328 base::ProcessHandle handle) { | 328 base::ProcessHandle handle) { |
| 329 #if defined(OS_ANDROID) | 329 #if defined(OS_ANDROID) |
| 330 LOG(INFO) << "ChromeProcess: Stopping process with handle " << handle; | 330 LOG(INFO) << "ChromeProcess: Stopping process with handle " << handle; |
| 331 content::StopSandboxedProcess(handle); | 331 StopSandboxedProcess(handle); |
| 332 #else | 332 #else |
| 333 base::Process process(handle); | 333 base::Process process(handle); |
| 334 // Client has gone away, so just kill the process. Using exit code 0 | 334 // Client has gone away, so just kill the process. Using exit code 0 |
| 335 // means that UMA won't treat this as a crash. | 335 // means that UMA won't treat this as a crash. |
| 336 process.Terminate(content::RESULT_CODE_NORMAL_EXIT); | 336 process.Terminate(RESULT_CODE_NORMAL_EXIT); |
| 337 // On POSIX, we must additionally reap the child. | 337 // On POSIX, we must additionally reap the child. |
| 338 #if defined(OS_POSIX) | 338 #if defined(OS_POSIX) |
| 339 #if !defined(OS_MACOSX) | 339 #if !defined(OS_MACOSX) |
| 340 if (zygote) { | 340 if (zygote) { |
| 341 // If the renderer was created via a zygote, we have to proxy the reaping | 341 // If the renderer was created via a zygote, we have to proxy the reaping |
| 342 // through the zygote process. | 342 // through the zygote process. |
| 343 ZygoteHostImpl::GetInstance()->EnsureProcessTerminated(handle); | 343 ZygoteHostImpl::GetInstance()->EnsureProcessTerminated(handle); |
| 344 } else | 344 } else |
| 345 #endif // !OS_MACOSX | 345 #endif // !OS_MACOSX |
| 346 { | 346 { |
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| 448 base::Bind( | 448 base::Bind( |
| 449 &ChildProcessLauncher::Context::SetProcessBackgrounded, | 449 &ChildProcessLauncher::Context::SetProcessBackgrounded, |
| 450 GetHandle(), background)); | 450 GetHandle(), background)); |
| 451 } | 451 } |
| 452 | 452 |
| 453 void ChildProcessLauncher::SetTerminateChildOnShutdown( | 453 void ChildProcessLauncher::SetTerminateChildOnShutdown( |
| 454 bool terminate_on_shutdown) { | 454 bool terminate_on_shutdown) { |
| 455 if (context_) | 455 if (context_) |
| 456 context_->set_terminate_child_on_shutdown(terminate_on_shutdown); | 456 context_->set_terminate_child_on_shutdown(terminate_on_shutdown); |
| 457 } | 457 } |
| 458 |
| 459 } // namespace content |
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