Prepare bindings version 2

Change-Id: Ic9e417d9a36f5da08883c3ded127d8350ff893cc
Signed-off-by: José Bollo <jose.bollo@iot.bzh>

1 files changed, 25 insertions, 166 deletions

diff --git a/include/afb/afb-binding.h b/include/afb/afb-binding.h
index 9c845153..cea1b552 100644
--- a/include/afb/afb-binding.h
+++ b/include/afb/afb-binding.h
@@ -32,182 +32,41 @@
  *
  */
 
+#define AFB_BINDING_PRAGMA_KEEP_OBSOLETE_V1
+#define AFB_BINDING_PRAGMA_KEEP_OBSOLETE_V2
+#define AFB_BINDING_PRAGMA_DECLARE_V1
+#define AFB_BINDING_PRAGMA_DECLARE_V2
+
+#define AFB_BINDING_LOWER_VERSION     1
+#define AFB_BINDING_UPPER_VERSION     2
+#define AFB_BINDING_DEFAULT_VERSION   1
+
+#ifndef AFB_BINDING_CURRENT_VERSION
+#define AFB_BINDING_CURRENT_VERSION   AFB_BINDING_DEFAULT_VERSION
+#endif
+
 /*
  * Some function of the library are exported to afb-daemon.
  */
 
+#include "afb-session.h"
 #include "afb-event-itf.h"
 #include "afb-req-itf.h"
 #include "afb-service-itf.h"
+#include "afb-daemon-itf.h"
 #include "afb-binding-v1.h"
 #include "afb-binding-v2.h"
 
-/*
- * config mode
- */
-enum afb_mode {
-	AFB_MODE_LOCAL = 0,     /* run locally */
-	AFB_MODE_REMOTE,        /* run remotely */
-	AFB_MODE_GLOBAL         /* run either remotely or locally (DONT USE! reserved for future) */
-};
-
-/* declaration of features of libsystemd */
-struct sd_event;
-struct sd_bus;
-
-/*
- * Definition of the facilities provided by the daemon.
- */
-struct afb_daemon_itf {
-	int (*event_broadcast)(void *closure, const char *name, struct json_object *object); /* broadcasts evant 'name' with 'object' */
-	struct sd_event *(*get_event_loop)(void *closure);      /* gets the common systemd's event loop */
-	struct sd_bus *(*get_user_bus)(void *closure);          /* gets the common systemd's user d-bus */
-	struct sd_bus *(*get_system_bus)(void *closure);        /* gets the common systemd's system d-bus */
-	void (*vverbose)(void*closure, int level, const char *file, int line, const char *fmt, va_list args);
-	struct afb_event (*event_make)(void *closure, const char *name); /* creates an event of 'name' */
-	int (*rootdir_get_fd)(void *closure);
-	int (*rootdir_open_locale)(void *closure, const char *filename, int flags, const char *locale);
-	int (*queue_job)(void *closure, void (*callback)(int signum, void *arg), void *argument, void *group, int timeout);
-};
-
-/*
- * Structure for accessing daemon.
- * See also: afb_daemon_get_event_sender, afb_daemon_get_event_loop, afb_daemon_get_user_bus, afb_daemon_get_system_bus
- */
-struct afb_daemon {
-	const struct afb_daemon_itf *itf;       /* the interfacing functions */
-	void *closure;                          /* the closure when calling these functions */
-};
-
-/*
- * Interface between the daemon and the binding.
- */
-struct afb_binding_interface
-{
-	struct afb_daemon daemon;       /* access to the daemon facilies */
-	int verbosity;                  /* level of verbosity */
-	enum afb_mode mode;             /* run mode (local or remote) */
-};
-
-/*
- * Retrieves the common systemd's event loop of AFB
- * 'daemon' MUST be the daemon given in interface when activating the binding.
- */
-static inline struct sd_event *afb_daemon_get_event_loop(struct afb_daemon daemon)
-{
-	return daemon.itf->get_event_loop(daemon.closure);
-}
-
-/*
- * Retrieves the common systemd's user/session d-bus of AFB
- * 'daemon' MUST be the daemon given in interface when activating the binding.
- */
-static inline struct sd_bus *afb_daemon_get_user_bus(struct afb_daemon daemon)
-{
-	return daemon.itf->get_user_bus(daemon.closure);
-}
-
-/*
- * Retrieves the common systemd's system d-bus of AFB
- * 'daemon' MUST be the daemon given in interface when activating the binding.
- */
-static inline struct sd_bus *afb_daemon_get_system_bus(struct afb_daemon daemon)
-{
-	return daemon.itf->get_system_bus(daemon.closure);
-}
-
-/*
- * Broadcasts widely the event of 'name' with the data 'object'.
- * 'object' can be NULL.
- * 'daemon' MUST be the daemon given in interface when activating the binding.
- *
- * For convenience, the function calls 'json_object_put' for 'object'.
- * Thus, in the case where 'object' should remain available after
- * the function returns, the function 'json_object_get' shall be used.
- *
- * Returns the count of clients that received the event.
- */
-static inline int afb_daemon_broadcast_event(struct afb_daemon daemon, const char *name, struct json_object *object)
-{
-	return daemon.itf->event_broadcast(daemon.closure, name, object);
-}
-
-/*
- * Creates an event of 'name' and returns it.
- * 'daemon' MUST be the daemon given in interface when activating the binding.
- */
-static inline struct afb_event afb_daemon_make_event(struct afb_daemon daemon, const char *name)
-{
-	return daemon.itf->event_make(daemon.closure, name);
-}
-
-/*
- * Send a message described by 'fmt' and following parameters
- * to the journal for the verbosity 'level'.
- * 'file' and 'line' are indicators of position of the code in source files.
- * 'daemon' MUST be the daemon given in interface when activating the binding.
- */
-static inline void afb_daemon_verbose(struct afb_daemon daemon, int level, const char *file, int line, const char *fmt, ...) __attribute__((format(printf, 5, 6)));
-static inline void afb_daemon_verbose(struct afb_daemon daemon, int level, const char *file, int line, const char *fmt, ...)
-{
-	va_list args;
-	va_start(args, fmt);
-	daemon.itf->vverbose(daemon.closure, level, file, line, fmt, args);
-	va_end(args);
-}
-
-/*
- * Macros for logging messages
- */
-#if !defined(NO_BINDING_VERBOSE_MACRO)
-# if !defined(NO_BINDING_FILE_LINE_INDICATION)
-#  define ERROR(itf,...)   do{if(itf->verbosity>=0)afb_daemon_verbose(itf->daemon,3,__FILE__,__LINE__,__VA_ARGS__);}while(0)
-#  define WARNING(itf,...) do{if(itf->verbosity>=1)afb_daemon_verbose(itf->daemon,4,__FILE__,__LINE__,__VA_ARGS__);}while(0)
-#  define NOTICE(itf,...)  do{if(itf->verbosity>=1)afb_daemon_verbose(itf->daemon,5,__FILE__,__LINE__,__VA_ARGS__);}while(0)
-#  define INFO(itf,...)    do{if(itf->verbosity>=2)afb_daemon_verbose(itf->daemon,6,__FILE__,__LINE__,__VA_ARGS__);}while(0)
-#  define DEBUG(itf,...)   do{if(itf->verbosity>=3)afb_daemon_verbose(itf->daemon,7,__FILE__,__LINE__,__VA_ARGS__);}while(0)
-# else
-#  define ERROR(itf,...)   do{if(itf->verbosity>=0)afb_daemon_verbose(itf->daemon,3,NULL,0,__VA_ARGS__);}while(0)
-#  define WARNING(itf,...) do{if(itf->verbosity>=1)afb_daemon_verbose(itf->daemon,4,NULL,0,__VA_ARGS__);}while(0)
-#  define NOTICE(itf,...)  do{if(itf->verbosity>=1)afb_daemon_verbose(itf->daemon,5,NULL,0,__VA_ARGS__);}while(0)
-#  define INFO(itf,...)    do{if(itf->verbosity>=2)afb_daemon_verbose(itf->daemon,6,NULL,0,__VA_ARGS__);}while(0)
-#  define DEBUG(itf,...)   do{if(itf->verbosity>=3)afb_daemon_verbose(itf->daemon,7,NULL,0,__VA_ARGS__);}while(0)
-# endif
+#if AFB_BINDING_CURRENT_VERSION == 1
+#define afb_binding  afb_binding_v1
+#define afb_binding_interface afb_binding_interface_v1
+#if !defined(AFB_BINDING_PRAGMA_NO_VERBOSE_MACRO)
+#define ERROR   AFB_ERROR_V1
+#define WARNING AFB_WARNING_V1
+#define NOTICE  AFB_NOTICE_V1
+#define INFO    AFB_INFO_V1
+#define DEBUG   AFB_DEBUG_V1
+#endif
 #endif
 
-/*
- * Get the root directory file descriptor. This file descriptor can
- * be used with functions 'openat', 'fstatat', ...
- */
-static inline int afb_daemon_rootdir_get_fd(struct afb_daemon daemon)
-{
-	return daemon.itf->rootdir_get_fd(daemon.closure);
-}
-
-/*
- * Opens 'filename' within the root directory with 'flags' (see function openat)
- * using the 'locale' definition (example: "jp,en-US") that can be NULL.
- * Returns the file descriptor or -1 in case of error.
- */
-static inline int afb_daemon_rootdir_open_locale(struct afb_daemon daemon, const char *filename, int flags, const char *locale)
-{
-	return daemon.itf->rootdir_open_locale(daemon.closure, filename, flags, locale);
-}
 
-/*
- * Queue the job defined by 'callback' and 'argument' for being executed asynchronously
- * in this thread (later) or in an other thread.
- * If 'group' is not NUL, the jobs queued with a same value (as the pointer value 'group')
- * are executed in sequence in the order of there submission.
- * If 'timeout' is not 0, it represent the maximum execution time for the job in seconds.
- * At first, the job is called with 0 as signum and the given argument.
- * The job is executed with the monitoring of its time and some signals like SIGSEGV and
- * SIGFPE. When a such signal is catched, the job is terminated and reexecuted but with
- * signum being the signal number (SIGALRM when timeout expired).
- *
- * Returns 0 in case of success or -1 in case of error.
- */
-static inline int afb_daemon_queue_job(struct afb_daemon daemon, void (*callback)(int signum, void *arg), void *argument, void *group, int timeout)
-{
-	return daemon.itf->queue_job(daemon.closure, callback, argument, group, timeout);
-}