How to use sigmask in order to make signals can be processed by a thread


 
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Old 03-06-2011
Worse, you can't even count on being able to safely set the value of a variable in a signal handler unless it can be done atomically (such as with volatile sig_atomic_t). You really want to do as little as possible in a sighandler. If possible, set an atomic flag and get out.

Regards,
Alister
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in.daytimed(1M) 					  System Administration Commands					   in.daytimed(1M)

NAME
in.daytimed - UDP or TCP daytime protocol service daemon SYNOPSIS
in.daytimed FMRI svc:/internet/daytime:default DESCRIPTION
FMRI stands for Fault Management Resource Identifier. It is used to identify resources managed by the Fault Manager. See fmd(1M) and smf(5). The in.daytimed service provides the server-side of the daytime protocol. This protocol is used for debugging and bandwidth measurement and is available on both TCP and UDP transports, through port 13. The in.daytimed service is an inetd(1M) smf(5) delegated service. The in.daytimed detects which transport is requested by examining the socket it is passed by the inetd daemon. TCP-based service Once a connection is established, the in.daytimed generates the current date and time in ctime(3C) format as 7-bit ASCII and sends it through the connection. The server then closes the connection. Any data received from the client side of the connection is discarded. UDP-based service The in.daytimed listens for UDP datagrams. When a datagram is received, the server generates the current date and time in ctime(3C) format as 7-bit ASCII and inserts it in a UDP datagram sent in response to the client's request. Any received data is ignored. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcnsu | +-----------------------------+-----------------------------+ |Interface Stability |Evolving | +-----------------------------+-----------------------------+ SEE ALSO
inetd(1M), attributes(5), smf(5) RFC 867 SunOS 5.10 23 Aug 2004 in.daytimed(1M)