BRequest: Add Process()

The method creates the initial jobs for the request and processes the
jobs from the job queue until empty or an error occurs.

headers/os/package/Request.h

@@ -32,6 +32,8 @@ public:
 
 			BJob*				PopRunnableJob();
 
+			status_t			Process(bool failIfCanceledOnly = false);
+
 protected:
 			status_t			QueueJob(BJob* job);
 

src/kits/package/Request.cpp

@@ -49,6 +49,30 @@ BRequest::PopRunnableJob()
 }
 
 
+status_t
+BRequest::Process(bool failIfCanceledOnly)
+{
+	status_t error = InitCheck();
+	if (error != B_OK)
+		return error;
+
+	error = CreateInitialJobs();
+	if (error != B_OK)
+		return error;
+
+	while (BJob* job = PopRunnableJob()) {
+		error = job->Run();
+		delete job;
+		if (error != B_OK) {
+			if (!failIfCanceledOnly || error == B_CANCELED)
+				return error;
+		}
+	}
+
+	return B_OK;
+}
+
+
 status_t
 BRequest::QueueJob(BJob* job)
 {