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Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh .SH "NAME" Munin::Common::Daemon \- utilities for daemons. .SH "SYNOPSIS" .IX Header "SYNOPSIS" The following daemon-related features are supported: .IP "sd_notify: signal readiness of the daemon" 4 .IX Item "sd_notify: signal readiness of the daemon" .SH "SUBROUTINES" .IX Header "SUBROUTINES" .SS "emit_sd_notify_message" .IX Subsection "emit_sd_notify_message" Example: .PP .Vb 1 \& emit_sd_notify_message(); .Ve .PP Send a \*(L"ready\*(R" signal according to the \f(CW\*(C`sd_notify\*(C'\fR interface: .ie n .IP "1. check whether the environment variable ""\s-1NOTIFY_SOCKET""\s0 is defined" 4 .el .IP "1. check whether the environment variable ``\s-1NOTIFY_SOCKET''\s0 is defined" 4 .IX Item "1. check whether the environment variable NOTIFY_SOCKET is defined" .PD 0 .IP "2. remove this variable from the environment (this interface is not propagated to children)" 4 .IX Item "2. remove this variable from the environment (this interface is not propagated to children)" .ie n .IP "3. send the string ""READY=1"" to the socket" 4 .el .IP "3. send the string ``READY=1'' to the socket" 4 .IX Item "3. send the string READY=1 to the socket" .PD .PP The function returns silently, if something fails. .PP The function should be called as soon as the service is ready to accept requests. Calling this function is always safe \- independent of the caller supporting the \&\f(CW\*(C`sd_notify\*(C'\fR interface or not. .PP Examples for callers supporting the \f(CW\*(C`sd_notify\*(C'\fR interface: .ie n .IP "systemd: see ""Type=Notify"" in ""5"" in systemd.exec" 4 .el .IP "systemd: see \f(CWType=Notify\fR in ``5'' in systemd.exec" 4 .IX Item "systemd: see Type=Notify in 5 in systemd.exec" .PD 0 .ie n .IP "start-stop-daemon: see ""\-\-notify\-await"" in ""8"" in start-stop-daemon" 4 .el .IP "start-stop-daemon: see \f(CW\-\-notify\-await\fR in ``8'' in start-stop-daemon" 4 .IX Item "start-stop-daemon: see --notify-await in 8 in start-stop-daemon" .PD .PP See the specification of \*(L"sd_notify\*(R" for further details of this interface.