Expose size limits on storage in API, and add overflow detection logic to replay...

[shibboleth/cpp-xmltooling.git] / xmltooling / impl / MemoryStorageService.cpp

diff --git a/xmltooling/impl/MemoryStorageService.cpp b/xmltooling/impl/MemoryStorageService.cpp
index 60d2c63..7547d07 100644 (file)
--- a/xmltooling/impl/MemoryStorageService.cpp
+++ b/xmltooling/impl/MemoryStorageService.cpp
@@ -40,6 +40,11 @@ using namespace std;
 
 using xercesc::DOMElement;
 
+namespace {
+    // Reasonably extended sizes to avoid callers needing to shrink unduly.
+    static const XMLTOOL_DLLLOCAL StorageService::Capabilities g_memCaps(0x4000, 0x4000, 0x4000);
+};
+
 namespace xmltooling {
     class XMLTOOL_DLLLOCAL MemoryStorageService : public StorageService
     {
@@ -47,6 +52,10 @@ namespace xmltooling {
         MemoryStorageService(const DOMElement* e);
         virtual ~MemoryStorageService();
 
+        const Capabilities& getCapabilities() const {
+            return g_memCaps;
+        }
+
         bool createString(const char* context, const char* key, const char* value, time_t expiration);
         int readString(const char* context, const char* key, string* pvalue=nullptr, time_t* pexpiration=nullptr, int version=0);
         int updateString(const char* context, const char* key, const char* value=nullptr, time_t expiration=0, int version=0);