socket: add POSIX mqueue support

[elogind.git] / src / sd-daemon.h

diff --git a/src/sd-daemon.h b/src/sd-daemon.h
index c68c96d2ddfb56312f44c047c14b0ea6d42023fa..c3d9b6fb0da266db50db4555b3e47639a66722ac 100644 (file)
--- a/src/sd-daemon.h
+++ b/src/sd-daemon.h
@@ -67,13 +67,21 @@ extern "C" {
   See sd-daemon(7) for more information.
 */
 
   See sd-daemon(7) for more information.
 */
 

+#ifndef _sd_printf_attr_

 #if __GNUC__ >= 4
 #define _sd_printf_attr_(a,b) __attribute__ ((format (printf, a, b)))
 #if __GNUC__ >= 4
 #define _sd_printf_attr_(a,b) __attribute__ ((format (printf, a, b)))

-#define _sd_hidden_ __attribute__ ((visibility("hidden")))

 #else
 #define _sd_printf_attr_(a,b)
 #else
 #define _sd_printf_attr_(a,b)

+#endif
+#endif
+
+#ifndef _sd_hidden_
+#if (__GNUC__ >= 4) && !defined(SD_EXPORT_SYMBOLS)
+#define _sd_hidden_ __attribute__ ((visibility("hidden")))
+#else

 #define _sd_hidden_
 #endif
 #define _sd_hidden_
 #endif

+#endif

 
 /*
   Log levels for usage on stderr:
 
 /*
   Log levels for usage on stderr:


@@ -169,15 +177,23 @@ int sd_is_socket_inet(int fd, int family, int type, int listening, uint16_t port
 */
 int sd_is_socket_unix(int fd, int type, int listening, const char *path, size_t length) _sd_hidden_;
 
 */
 int sd_is_socket_unix(int fd, int type, int listening, const char *path, size_t length) _sd_hidden_;
 

+/*
+  Helper call for identifying a passed file descriptor. Returns 1 if
+  the file descriptor is a POSIX Message Queue of the specified name,
+  0 otherwise. If path is NULL a message queue name check is not
+  done. Returns a negative errno style error code on failure.
+*/
+int sd_is_mq(int fd, const char *path) _sd_hidden_;
+

 /*
   Informs systemd about changed daemon state. This takes a number of
 /*
   Informs systemd about changed daemon state. This takes a number of

-  newline seperated environment-style variable assignments in a
+  newline separated environment-style variable assignments in a

   string. The following variables are known:
 
      READY=1      Tells systemd that daemon startup is finished (only
                   relevant for services of Type=notify). The passed
                   argument is a boolean "1" or "0". Since there is
   string. The following variables are known:
 
      READY=1      Tells systemd that daemon startup is finished (only
                   relevant for services of Type=notify). The passed
                   argument is a boolean "1" or "0". Since there is

-                  little value in signalling non-readiness the only
+                  little value in signaling non-readiness the only

                   value daemons should send is "READY=1".
 
      STATUS=...   Passes a single-line status string back to systemd
                   value daemons should send is "READY=1".
 
      STATUS=...   Passes a single-line status string back to systemd


@@ -198,7 +214,7 @@ int sd_is_socket_unix(int fd, int type, int listening, const char *path, size_t
                   fork off the process itself. Example: "MAINPID=4711"
 
   Daemons can choose to send additional variables. However, it is
                   fork off the process itself. Example: "MAINPID=4711"
 
   Daemons can choose to send additional variables. However, it is

-  recommened to prefix variable names not listed above with X_.
+  recommended to prefix variable names not listed above with X_.

 
   Returns a negative errno-style error code on failure. Returns > 0
   if systemd could be notified, 0 if it couldn't possibly because
 
   Returns a negative errno-style error code on failure. Returns > 0
   if systemd could be notified, 0 if it couldn't possibly because


@@ -244,7 +260,7 @@ int sd_notifyf(int unset_environment, const char *format, ...) _sd_printf_attr_(
   fine. You should NOT protect them with a call to this function. Also
   note that this function checks whether the system, not the user
   session is controlled by systemd. However the functions above work
   fine. You should NOT protect them with a call to this function. Also
   note that this function checks whether the system, not the user
   session is controlled by systemd. However the functions above work

-  for both session and system services.
+  for both user and system services.

 
   See sd_booted(3) for more information.
 */
 
   See sd_booted(3) for more information.
 */