Mac: Proof of concept of IPCing renderer mach_port_ts.

chrome/renderer/renderer_main.cc

Index: chrome/renderer/renderer_main.cc
diff --git a/chrome/renderer/renderer_main.cc b/chrome/renderer/renderer_main.cc
index 1531c40926afe4b5315f43e1b509865c975cf1ea..cafab7086a2b0cb982d87154f00fe3afdcf3ab4b 100644
--- a/chrome/renderer/renderer_main.cc
+++ b/chrome/renderer/renderer_main.cc
@@ -27,6 +27,9 @@
 #include "grit/generated_resources.h"
 #include "net/base/net_module.h"
 
+
+#include "chrome/common/mach_ipc_mac.h"
+
 #if defined(USE_LINUX_BREAKPAD)
 #include "chrome/app/breakpad_linux.h"
 #endif
@@ -55,6 +58,27 @@ int RendererMain(const MainFunctionParams& parameters) {
   const CommandLine& parsed_command_line = parameters.command_line_;
   base::ScopedNSAutoreleasePool* pool = parameters.autorelease_pool_;
 
+  mach_port_t host_port = mach_host_self();
+  fprintf(stderr, "host port: %lu\n", (unsigned long)host_port);
+
+  // send to already named port
+  MachPortSender sender("com.Google.MyService");
+  MachSendMessage message(57);      // our message ID is 57
+
+  // add some ports to be translated for us
+  message.AddDescriptor(mach_task_self());     // our task
+  message.AddDescriptor(mach_thread_self());   // this thread
+  message.AddDescriptor(host_port);   // uhh...not sure. but certainly important.
+
+  char messageString[] = "Hello server!\n";
+  message.SetData(messageString, strlen(messageString)+1);
+  // timeout 1000ms
+  kern_return_t result = sender.SendMessage(message, 1000);
+  fprintf(stderr, "send result: %lu\n", (unsigned long)result);
+  if (result != KERN_SUCCESS)
+    fprintf(stderr, "(Failed :-( )\n");
+
+
 #if defined(USE_LINUX_BREAKPAD)
   // Needs to be called after we have chrome::DIR_USER_DATA.
   InitCrashReporter();