Improve the build system to *properly* remove unnecessary symbols from the runtime global namespace. Along the way, change the prefixes on some internal-only API calls to use a common prefix.

With these changes, for a module to export symbols into the global namespace, it must have *both* the AST_MODFLAG_GLOBAL_SYMBOLS flag and a linker script that allows the linker to leave the symbols exposed in the module's .so file (see res_odbc.exports for an example).



git-svn-id: http://svn.digium.com/svn/asterisk/branches/1.4@182802 f38db490-d61c-443f-a65b-d21fe96a405b

1 files changed, 18 insertions, 12 deletions

diff --git a/main/slinfactory.c b/main/slinfactory.c
index 212edef92..b848fb074 100644
--- a/main/slinfactory.c
+++ b/main/slinfactory.c
@@ -57,7 +57,7 @@ void ast_slinfactory_destroy(struct ast_slinfactory *sf)
 int ast_slinfactory_feed(struct ast_slinfactory *sf, struct ast_frame *f)
 {
 	struct ast_frame *begin_frame = f, *duped_frame = NULL, *frame_ptr;
-	unsigned int x;
+	unsigned int x = 0;
 
 	/* In some cases, we can be passed a frame which has no data in it, but
 	 * which has a positive number of samples defined. Once such situation is
@@ -84,27 +84,33 @@ int ast_slinfactory_feed(struct ast_slinfactory *sf, struct ast_frame *f)
 			}
 		}
 
-		if (!(begin_frame = ast_translate(sf->trans, f, 0))) 
+		if (!(begin_frame = ast_translate(sf->trans, f, 0))) {
 			return 0;
+		}
 		
-		duped_frame = ast_frdup(begin_frame);
-
-		ast_frfree(begin_frame);
-
-		if (!duped_frame)
+		if (!(duped_frame = ast_frisolate(begin_frame))) {
 			return 0;
+		}
+
+		if (duped_frame != begin_frame) {
+			ast_frfree(begin_frame);
+		}
 	} else {
 		if (!(duped_frame = ast_frdup(f)))
 			return 0;
 	}
 
-	x = 0;
-	AST_LIST_TRAVERSE(&sf->queue, frame_ptr, frame_list)
+	AST_LIST_TRAVERSE(&sf->queue, frame_ptr, frame_list) {
 		x++;
+	}
 
-	AST_LIST_INSERT_TAIL(&sf->queue, duped_frame, frame_list);
-
-	sf->size += duped_frame->samples;
+	/* if the frame was translated, the translator may have returned multiple
+	   frames, so process each of them
+	*/
+	for (begin_frame = duped_frame; begin_frame; begin_frame = AST_LIST_NEXT(begin_frame, frame_list)) {
+		AST_LIST_INSERT_TAIL(&sf->queue, begin_frame, frame_list);
+		sf->size += begin_frame->samples;
+	}
 
 	return x;
 }