Improved BIO API

BIO now supports reading from and writing to in-memory buffers.

For reading, an allocated buffer (array) and a size is passed as arguments to
the function opening the handle.
For writing, a GNUNET_Buffer is created and used internally. The buffer
contents can be extracted using the relevant function.

There is a new API in addition to the existing read/write: this new API is
more "declarative" in nature and is meant to mimic APIs like GNUNET_SQ.
The read/write operations are defined in an array of specs which are then
"commited" in a single (non-atomic) operation, rather than explicitly
executing multiple function calls and checking their return value.

Also there are small changes to GNUNET_Buffer to account for BIO's new
features.

Signed-off-by: Christian Grothoff <christian@grothoff.org>

1 files changed, 3 insertions, 2 deletions

diff --git a/src/testbed-logger/gnunet-service-testbed-logger.c b/src/testbed-logger/gnunet-service-testbed-logger.c
index 4e0a3cd34..81652fa4f 100644
--- a/src/testbed-logger/gnunet-service-testbed-logger.c
+++ b/src/testbed-logger/gnunet-service-testbed-logger.c
@@ -85,6 +85,7 @@ handle_log_msg (void *cls,
 
   ms = ntohs (msg->size) - sizeof(struct GNUNET_MessageHeader);
   GNUNET_BIO_write (bio,
+                    "testbed-logger-handle-log-msg",
                     &msg[1],
                     ms);
   GNUNET_SERVICE_client_continue (client);
@@ -108,7 +109,7 @@ shutdown_task (void *cls)
     return;
   }
   GNUNET_break (GNUNET_OK ==
-                GNUNET_BIO_write_close (bio));
+                GNUNET_BIO_write_close (bio, NULL));
 }
 
 
@@ -202,7 +203,7 @@ logger_run (void *cls,
                    (intmax_t) pid);
   GNUNET_free (hname);
   GNUNET_free (dir);
-  if (NULL == (bio = GNUNET_BIO_write_open (fn)))
+  if (NULL == (bio = GNUNET_BIO_write_open_file (fn)))
   {
     GNUNET_free (fn);
     GNUNET_SCHEDULER_shutdown ();