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initctl: talk to systemd via the abstract private bus
[elogind.git]
/
src
/
sd-daemon.h
diff --git
a/src/sd-daemon.h
b/src/sd-daemon.h
index 0277b0fb5cbf32eabf2a0a59a7277d3d589f99aa..20c260c40dd764c19a8f36fed05d079520930a8c 100644
(file)
--- a/
src/sd-daemon.h
+++ b/
src/sd-daemon.h
@@
-41,6
+41,12
@@
extern "C" {
* algorithms described here, if they do not want to include these two
* source files. */
* algorithms described here, if they do not want to include these two
* source files. */
+#ifdef __GNUC__
+#define _sd_printf_attr_(a,b) __attribute__ ((format (printf, a, b)))
+#else
+#define _sd_printf_attr_(a,b)
+#endif
+
/*
Log levels for usage on stderr:
/*
Log levels for usage on stderr:
@@
-126,9
+132,9
@@
int sd_is_socket_unix(int fd, int type, int listening, const char *path, size_t
* little value in signalling non-readiness the only
* value daemons should send is "READY=1".
*
* little value in signalling non-readiness the only
* value daemons should send is "READY=1".
*
- * STATUS=... Passes a s
tatus string back to systemd that
- *
describes the daemon state. This is free-from and
- * can be used for various purposes: general state
+ * STATUS=... Passes a s
ingle-line status string back to systemd
+ *
that describes the daemon state. This is free-from
+ *
and
can be used for various purposes: general state
* feedback, fsck-like programs could pass completion
* percentages and failing programs could pass a human
* readable error message. Example: "STATUS=Completed
* feedback, fsck-like programs could pass completion
* percentages and failing programs could pass a human
* readable error message. Example: "STATUS=Completed
@@
-143,6
+149,12
@@
int sd_is_socket_unix(int fd, int type, int listening, const char *path, size_t
* MAINPID=... The main pid of a daemon, in case systemd did not
* fork off the process itself. Example: "MAINPID=4711"
*
* MAINPID=... The main pid of a daemon, in case systemd did not
* fork off the process itself. Example: "MAINPID=4711"
*
+ * Daemons can choose to send additional variables.
+ *
+ * Returns a negative errno-style error code on failure. Returns > 0
+ * if systemd could be notified, 0 if it couldn't possibly because
+ * systemd is not running.
+ *
* See sd_notifyf() for more complete examples.
*/
int sd_notify(int unset_environment, const char *state);
* See sd_notifyf() for more complete examples.
*/
int sd_notify(int unset_environment, const char *state);
@@
-164,7
+176,7
@@
int sd_notify(int unset_environment, const char *state);
* strerror(errno),
* errno);
*/
* strerror(errno),
* errno);
*/
-int sd_notifyf(int unset_environment, const char *format, ...);
+int sd_notifyf(int unset_environment, const char *format, ...)
_sd_printf_attr_(2,3)
;
#ifdef __cplusplus
}
#ifdef __cplusplus
}