-#include "gnunet_common.h"
-#include "gnunet_configuration_lib.h"
-#include "gnunet_connection_lib.h"
-#include "gnunet_scheduler_lib.h"
-#include "gnunet_time_lib.h"
-
-/**
- * Opaque handle for a connection to a service.
- */
-struct GNUNET_CLIENT_Connection;
-
-/**
- * Get a connection with a service.
- *
- * @param service_name name of the service
- * @param cfg configuration to use
- * @return NULL on error (service unknown to configuration)
- */
-struct GNUNET_CLIENT_Connection *
-GNUNET_CLIENT_connect (const char *service_name,
- const struct GNUNET_CONFIGURATION_Handle *cfg);
-
-
-/**
- * Destroy connection with the service. This will automatically
- * cancel any pending "receive" request (however, the handler will
- * *NOT* be called, not even with a NULL message). Any pending
- * transmission request will also be cancelled UNLESS the callback for
- * the transmission request has already been called, in which case the
- * transmission 'finish_pending_write' argument determines whether or
- * not the write is guaranteed to complete before the socket is fully
- * destroyed (unless, of course, there is an error with the server in
- * which case the message may still be lost).
- *
- * @param client handle to the service connection
- */
-void
-GNUNET_CLIENT_disconnect (struct GNUNET_CLIENT_Connection *client);
-
-
-/**
- * Type of a function to call when we receive a message
- * from the service.
- *
- * @param cls closure
- * @param msg message received, NULL on timeout or fatal error
- */
-typedef void (*GNUNET_CLIENT_MessageHandler) (void *cls,
- const struct GNUNET_MessageHeader
- *msg);
-
-
-/**
- * Read from the service.
- *
- * @param client connection to the service
- * @param handler function to call with the message
- * @param handler_cls closure for handler
- * @param timeout how long to wait until timing out
- */
-void
-GNUNET_CLIENT_receive (struct GNUNET_CLIENT_Connection *client,
- GNUNET_CLIENT_MessageHandler handler, void *handler_cls,
- struct GNUNET_TIME_Relative timeout);
-
-
-/**
- * Transmit handle for client connections.
- */
-struct GNUNET_CLIENT_TransmitHandle;
-
-
-/**
- * Ask the client to call us once the specified number of bytes
- * are free in the transmission buffer. May call the notify
- * method immediately if enough space is available.
- *
- * @param client connection to the service
- * @param size number of bytes to send
- * @param timeout after how long should we give up (and call
- * notify with buf NULL and size 0)?
- * @param auto_retry if the connection to the service dies, should we
- * automatically re-connect and retry (within the timeout period)
- * or should we immediately fail in this case? Pass GNUNET_YES
- * if the caller does not care about temporary connection errors,
- * for example because the protocol is stateless
- * @param notify function to call
- * @param notify_cls closure for notify
- * @return NULL if someone else is already waiting to be notified
- * non-NULL if the notify callback was queued (can be used to cancel
- * using GNUNET_CONNECTION_notify_transmit_ready_cancel)
- */
-struct GNUNET_CLIENT_TransmitHandle *
-GNUNET_CLIENT_notify_transmit_ready (struct GNUNET_CLIENT_Connection *client,
- size_t size,
- struct GNUNET_TIME_Relative timeout,
- int auto_retry,
- GNUNET_CONNECTION_TransmitReadyNotify
- notify, void *notify_cls);
-
-
-/**
- * Cancel a request for notification.
- *
- * @param th handle from the original request.
- */
-void
-GNUNET_CLIENT_notify_transmit_ready_cancel (struct GNUNET_CLIENT_TransmitHandle
- *th);
-
-
-/**
- * Convenience API that combines sending a request
- * to the service and waiting for a response.
- * If either operation times out, the callback
- * will be called with a "NULL" response (in which
- * case the connection should probably be destroyed).
- *
- * @param client connection to use
- * @param hdr message to transmit
- * @param timeout when to give up (for both transmission
- * and for waiting for a response)
- * @param auto_retry if the connection to the service dies, should we
- * automatically re-connect and retry (within the timeout period)
- * or should we immediately fail in this case? Pass GNUNET_YES
- * if the caller does not care about temporary connection errors,
- * for example because the protocol is stateless
- * @param rn function to call with the response
- * @param rn_cls closure for rn
- * @return GNUNET_OK on success, GNUNET_SYSERR if a request
- * is already pending
- */
-int
-GNUNET_CLIENT_transmit_and_get_response (struct GNUNET_CLIENT_Connection *client,
- const struct GNUNET_MessageHeader *hdr,
- struct GNUNET_TIME_Relative timeout,
- int auto_retry,
- GNUNET_CLIENT_MessageHandler rn,
- void *rn_cls);
-
-
-/**
- * Handle for a test to check if a service is running.
- */
-struct GNUNET_CLIENT_TestHandle;
-
-/**
- * Function called with the result on the service test.
- *
- * @param cls closure
- * @param result GNUNET_YES if the service is running,
- * GNUNET_NO if the service is not running
- * GNUNET_SYSERR if the configuration is invalid
- */
-typedef void (*GNUNET_CLIENT_TestResultCallback)(void *cls,
- int result);