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In the GNU system,SIGLOSTis generated when any server program dies unexpectedly. It is usually fine to ignore the signal; whatever call was made to the server that died just returns an error.
intSIGXCPU
-
CPU time limit exceeded. This signal is generated when the process exceeds its soft resource limit on CPU time. See section.
intSIGXFSZ
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File size limit exceeded. This signal is generated when the process attempts to extend a file so it exceeds the process's soft resource limit on file size. See section.
intSIGUSR1
intSIGUSR2
-
The
SIGUSR1andSIGUSR2signals are set aside for you to use any way you want. They're useful for simple interprocess communication,if you write a signal handler for them in the program that receives the signal.
There is an example showing the use ofSIGUSR1andSIGUSR2in section.
The default action is to terminate the process.
intSIGWINCH
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Window size change. This is generated on some systems (including GNU) when the terminal driver's record of the number of rows and columns on the screen is changed. The default action is to ignore it.
If a program does full-screen display,it should handleSIGWINCH. When the signal arrives,it should fetch the new screen size and reformat its display accordingly.
intSIGINFO
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Information request. In 4.4 BSD and the GNU system,this signal is sent to all the processes in the foreground process group of the controlling terminal when the user types the STATUS character in canonical mode; see section.
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