Change ClientInfo into a class to match other platforms, rename the current ClientInfo to ExceptionInfo

R=mark at http://breakpad.appspot.com/156001/show

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@651 4c0a9323-5329-0410-9bdc-e9ce6186880e

src/client/mac/crash_generation/client_info.h

@@ -32,10 +32,14 @@
 
 namespace google_breakpad {
 
-struct ClientInfo {
+class ClientInfo {
-  int exception_type;
+ public:
-  int exception_code;
+  explicit ClientInfo(pid_t pid) : pid_(pid) {}
-  int exception_subcode;
+
+  pid_t pid() const { return pid_; }
+
+ private:
+  pid_t pid_;
 };
 
 }  // namespace google_breakpad

src/client/mac/crash_generation/crash_generation_client.cc

@@ -29,7 +29,6 @@
 
 #include "client/mac/crash_generation/crash_generation_client.h"
 
-#include "client/mac/crash_generation/client_info.h"
 #include "client/mac/crash_generation/crash_generation_server.h"
 #include "common/mac/MachIPC.h"
 
@@ -50,7 +49,7 @@ bool CrashGenerationClient::RequestDumpForException(
   message.AddDescriptor(mach_thread_self());          // handler thread
   message.AddDescriptor(acknowledge_port.GetPort());  // message receive port
 
-  ClientInfo info;
+  ExceptionInfo info;
   info.exception_type = exception_type;
   info.exception_code = exception_code;
   info.exception_subcode = exception_subcode;

src/client/mac/crash_generation/crash_generation_server.cc

@@ -98,12 +98,15 @@ bool CrashGenerationServer::WaitForOneMessage() {
   if (result == KERN_SUCCESS) {
     switch (message.GetMessageID()) {
       case kDumpRequestMessage: {
-        ClientInfo &info = (ClientInfo &)*message.GetData();
+        ExceptionInfo &info = (ExceptionInfo &)*message.GetData();
       
         mach_port_t remote_task = message.GetTranslatedPort(0);
         mach_port_t crashing_thread = message.GetTranslatedPort(1);
         mach_port_t handler_thread = message.GetTranslatedPort(2);
         mach_port_t ack_port = message.GetTranslatedPort(3);
+        pid_t remote_pid = -1;
+        pid_for_task(remote_task, &remote_pid);
+        ClientInfo client(remote_pid);
 
         bool result;
         std::string dump_path;
@@ -125,12 +128,12 @@ bool CrashGenerationServer::WaitForOneMessage() {
         }
 
         if (result && dump_callback_) {
-          dump_callback_(dump_context_, info, dump_path);
+          dump_callback_(dump_context_, client, dump_path);
         }
 
         // TODO(ted): support a way for the client to send additional data,
-	// perhaps with a callback so users of the server can read the data
+        // perhaps with a callback so users of the server can read the data
-	// themselves?
+        // themselves?
       
         if (ack_port != MACH_PORT_DEAD && ack_port != MACH_PORT_NULL) {
           MachPortSender sender(ack_port);
@@ -141,7 +144,7 @@ bool CrashGenerationServer::WaitForOneMessage() {
         }
 
         if (exit_callback_) {
-          exit_callback_(exit_context_, info);
+          exit_callback_(exit_context_, client);
         }
         break;
       }
@@ -149,7 +152,6 @@ bool CrashGenerationServer::WaitForOneMessage() {
         return false;
     }
   } else {  // result != KERN_SUCCESS
-    mach_error("WaitForMessage", result);
     return false;
   }
   return true;

src/client/mac/crash_generation/crash_generation_server.h

@@ -45,6 +45,13 @@ enum {
   kQuitMessage            = 3
 };
 
+// Exception details sent by the client when requesting a dump.
+struct ExceptionInfo {
+  int exception_type;
+  int exception_code;
+  int exception_subcode;
+};
+
 class CrashGenerationServer {
  public:
   // WARNING: callbacks may be invoked on a different thread

src/client/mac/tests/crash_generation_server_test.cc

@@ -60,6 +60,8 @@ public:
   char mach_port_name[128];
   // Filename of the last dump that was generated
   string last_dump_name;
+  // PID of the child process
+  pid_t child_pid;
   // A temp dir
   AutoTempDir temp_dir;
   // Counter just to ensure that we don't hit the same port again
@@ -69,6 +71,7 @@ public:
     sprintf(mach_port_name,
 	    "com.google.breakpad.ServerTest.%d.%d", getpid(),
 	    CrashGenerationServerTest::i++);
+    child_pid = (pid_t)-1;
   }
 };
 int CrashGenerationServerTest::i = 0;
@@ -127,6 +130,7 @@ void dumpCallback(void *context, const ClientInfo &client_info,
         reinterpret_cast<CrashGenerationServerTest*>(context);
     if (!file_path.empty())
       self->last_dump_name = file_path;
+    self->child_pid = client_info.pid();
   }
 }
 
@@ -171,6 +175,8 @@ TEST_F(CrashGenerationServerTest, testRequestDump) {
   struct stat st;
   EXPECT_EQ(0, stat(last_dump_name.c_str(), &st));
   EXPECT_LT(0, st.st_size);
+  // check client's PID
+  ASSERT_EQ(pid, child_pid);
 }
 
 static void Crasher() {