BACKENDS: Add OSystem::getDefaultConfigFileName

This is used to provide default implementations for createConfigWriteStream
and createConfigReadStream, which can be used by most backends.

Note that backends can still override createConfigRead/WriteStream;
this could be useful if settings on some port are not stored in a
regular file (think 'Windows registry', for a hypothetical example).

2 files changed, 3 insertions, 12 deletions

diff --git a/backends/platform/ds/arm9/source/osystem_ds.cpp b/backends/platform/ds/arm9/source/osystem_ds.cpp
index e65402c604..90af02f43b 100644
--- a/backends/platform/ds/arm9/source/osystem_ds.cpp
+++ b/backends/platform/ds/arm9/source/osystem_ds.cpp
@@ -853,16 +853,8 @@ void OSystem_DS::setCharactersEntered(int count) {
 	DS::setCharactersEntered(count);
 }
 
-Common::SeekableReadStream *OSystem_DS::createConfigReadStream() {
-	Common::FSNode file(DEFAULT_CONFIG_FILE);
-//	consolePrintf("R %s", DEFAULT_CONFIG_FILE);
-	return file.createReadStream();
-}
-
-Common::WriteStream *OSystem_DS::createConfigWriteStream() {
-	Common::FSNode file(DEFAULT_CONFIG_FILE);
-//	consolePrintf("W %s", DEFAULT_CONFIG_FILE);
-	return file.createWriteStream();
+Common::String OSystem_DS::getDefaultConfigFileName() {
+	return DEFAULT_CONFIG_FILE;
 }
 
 u16 OSystem_DS::applyGamma(u16 color) {
diff --git a/backends/platform/ds/arm9/source/osystem_ds.h b/backends/platform/ds/arm9/source/osystem_ds.h
index ecb8011060..d3e7fce1a1 100644
--- a/backends/platform/ds/arm9/source/osystem_ds.h
+++ b/backends/platform/ds/arm9/source/osystem_ds.h
@@ -176,8 +176,7 @@ public:
 
 	void refreshCursor();
 
-	Common::WriteStream *createConfigWriteStream();
-	Common::SeekableReadStream *createConfigReadStream();
+	virtual Common::String getDefaultConfigFileName();
 
 	u16 applyGamma(u16 color);
 	void setGammaValue(int gamma) { _gammaValue = gamma; }