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sd_notify (systemd status notifications) support

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sd_notify() is used to notify systemd of changes to the status of the
process. This allows the systemd daemon to know when the process
finished loading (and thus only start another program after Asterisk has
finished loading).

To use this, use a systemd unit with 'Type=notify' for Asterisk.

This commit also adds the function ast_sd_notify(), a wrapper around
sd_notify that does nothing if not built with systemd support.

Also adds support for libsystemd detection in the configure script.

Change-Id: Ied6a59dafd5ef331c5c7ae8f3ccd2dfc94be7811
This commit is contained in:
Tzafrir Cohen
2016-06-27 21:26:54 +02:00
parent 95cf4f8d31
commit 07b95f7c65
10 changed files with 163 additions and 6 deletions
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3
include/asterisk/autoconfig.h.in
View File

@@ -1027,6 +1027,9 @@
/* Define to 1 if you have the <syslog.h> header file. */
#undef HAVE_SYSLOG_H
/* Define if your system has the SYSTEMD libraries. */
#undef HAVE_SYSTEMD
/* Define to 1 if you have the <sys/dir.h> header file, and it defines `DIR'.
*/
#undef HAVE_SYS_DIR_H

10
include/asterisk/io.h
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@@ -139,6 +139,16 @@ int ast_restore_tty(int fd, int oldstatus);
int ast_get_termcols(int fd);
/*!
* \brief a wrapper for sd_notify(): notify systemd of any state changes.
* \param state a string that states the changes. See sd_notify(3).
* The wrapper does nothing if systemd ('s development headers) was not
* detected on the system.
* \returns >=0 on success, negative value on error.
*/
int ast_sd_notify(const char *state);
#if defined(__cplusplus) || defined(c_plusplus)
}
#endif