b=392351, implement about:memory framework core, relading with forward-declaration victory; r=shaver,sr=bsdmedberg

xpcom/base/nsMemoryReporterManager.cpp

@@ -0,0 +1,52 @@
+
+#include "nsCOMPtr.h"
+#include "nsServiceManagerUtils.h"
+#include "nsMemoryReporterManager.h"
+
+#include "nsArrayEnumerator.h"
+
+NS_IMPL_ISUPPORTS1(nsMemoryReporterManager, nsIMemoryReporterManager)
+
+NS_IMETHODIMP
+nsMemoryReporterManager::EnumerateReporters(nsISimpleEnumerator **result)
+{
+    return NS_NewArrayEnumerator(result, mReporters);
+}
+
+NS_IMETHODIMP
+nsMemoryReporterManager::RegisterReporter(nsIMemoryReporter *reporter)
+{
+    if (mReporters.IndexOf(reporter) != -1)
+        return NS_ERROR_FAILURE;
+
+    mReporters.AppendObject(reporter);
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsMemoryReporterManager::UnregisterReporter(nsIMemoryReporter *reporter)
+{
+    if (!mReporters.RemoveObject(reporter))
+        return NS_ERROR_FAILURE;
+
+    return NS_OK;
+}
+
+nsresult
+NS_RegisterMemoryReporter (nsIMemoryReporter *reporter)
+{
+    nsCOMPtr<nsIMemoryReporterManager> mgr = do_GetService("@mozilla.org/memory-reporter-manager;1");
+    if (mgr == nsnull)
+        return NS_ERROR_FAILURE;
+    return mgr->RegisterReporter(reporter);
+}
+
+nsresult
+NS_UnregisterMemoryReporter (nsIMemoryReporter *reporter)
+{
+    nsCOMPtr<nsIMemoryReporterManager> mgr = do_GetService("@mozilla.org/memory-reporter-manager;1");
+    if (mgr == nsnull)
+        return NS_ERROR_FAILURE;
+    return mgr->UnregisterReporter(reporter);
+}
+