split out the implementation of the log functions
Before, things (ie mutex, queues, etc) that the logging code used
couldn't depend on the implementations of the log functions they use.
diff --git a/aos/common/logging/logging_impl.h b/aos/common/logging/logging_impl.h
index 18f35bc..ca19dbc 100644
--- a/aos/common/logging/logging_impl.h
+++ b/aos/common/logging/logging_impl.h
@@ -18,6 +18,10 @@
// code like logging.h can.
// It is useful for the rest of the logging implementation and other C++ code
// that needs to do special things with logging.
+//
+// It is implemented in logging_impl.cc and logging_interface.cc. They are
+// separate so that code used by logging_impl.cc can link in
+// logging_interface.cc to use logging.
namespace aos {
namespace logging {
@@ -151,6 +155,8 @@
// goes.
namespace internal {
+extern LogImplementation *global_top_implementation;
+
// An separate instance of this class is accessible from each task/thread.
// NOTE: It will get deleted in the child of a fork.
struct Context {
@@ -210,6 +216,11 @@
// Prints message to output.
void PrintMessage(FILE *output, const LogMessage &message);
+// Prints format (with ap) into output and correctly deals with the result
+// being too long etc.
+void ExecuteFormat(char *output, size_t output_size, const char *format,
+ va_list ap);
+
} // namespace internal
} // namespace logging
} // namespace aos