| <html lang="en"> |
| <head> |
| <title>Operation Error Signals - The GNU C Library</title> |
| <meta http-equiv="Content-Type" content="text/html"> |
| <meta name="description" content="The GNU C Library"> |
| <meta name="generator" content="makeinfo 4.13"> |
| <link title="Top" rel="start" href="index.html#Top"> |
| <link rel="up" href="Standard-Signals.html#Standard-Signals" title="Standard Signals"> |
| <link rel="prev" href="Job-Control-Signals.html#Job-Control-Signals" title="Job Control Signals"> |
| <link rel="next" href="Miscellaneous-Signals.html#Miscellaneous-Signals" title="Miscellaneous Signals"> |
| <link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> |
| <!-- |
| This file documents the GNU C library. |
| |
| This is Edition 0.12, last updated 2007-10-27, |
| of `The GNU C Library Reference Manual', for version |
| 2.8 (Sourcery G++ Lite 2011.03-41). |
| |
| Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2001, 2002, |
| 2003, 2007, 2008, 2010 Free Software Foundation, Inc. |
| |
| Permission is granted to copy, distribute and/or modify this document |
| under the terms of the GNU Free Documentation License, Version 1.3 or |
| any later version published by the Free Software Foundation; with the |
| Invariant Sections being ``Free Software Needs Free Documentation'' |
| and ``GNU Lesser General Public License'', the Front-Cover texts being |
| ``A GNU Manual'', and with the Back-Cover Texts as in (a) below. A |
| copy of the license is included in the section entitled "GNU Free |
| Documentation License". |
| |
| (a) The FSF's Back-Cover Text is: ``You have the freedom to |
| copy and modify this GNU manual. Buying copies from the FSF |
| supports it in developing GNU and promoting software freedom.''--> |
| <meta http-equiv="Content-Style-Type" content="text/css"> |
| <style type="text/css"><!-- |
| pre.display { font-family:inherit } |
| pre.format { font-family:inherit } |
| pre.smalldisplay { font-family:inherit; font-size:smaller } |
| pre.smallformat { font-family:inherit; font-size:smaller } |
| pre.smallexample { font-size:smaller } |
| pre.smalllisp { font-size:smaller } |
| span.sc { font-variant:small-caps } |
| span.roman { font-family:serif; font-weight:normal; } |
| span.sansserif { font-family:sans-serif; font-weight:normal; } |
| --></style> |
| <link rel="stylesheet" type="text/css" href="../cs.css"> |
| </head> |
| <body> |
| <div class="node"> |
| <a name="Operation-Error-Signals"></a> |
| <p> |
| Next: <a rel="next" accesskey="n" href="Miscellaneous-Signals.html#Miscellaneous-Signals">Miscellaneous Signals</a>, |
| Previous: <a rel="previous" accesskey="p" href="Job-Control-Signals.html#Job-Control-Signals">Job Control Signals</a>, |
| Up: <a rel="up" accesskey="u" href="Standard-Signals.html#Standard-Signals">Standard Signals</a> |
| <hr> |
| </div> |
| |
| <h4 class="subsection">24.2.6 Operation Error Signals</h4> |
| |
| <p>These signals are used to report various errors generated by an |
| operation done by the program. They do not necessarily indicate a |
| programming error in the program, but an error that prevents an |
| operating system call from completing. The default action for all of |
| them is to cause the process to terminate. |
| |
| <!-- signal.h --> |
| <!-- POSIX.1 --> |
| <div class="defun"> |
| — Macro: int <b>SIGPIPE</b><var><a name="index-SIGPIPE-2887"></a></var><br> |
| <blockquote><p><a name="index-pipe-signal-2888"></a><a name="index-broken-pipe-signal-2889"></a>Broken pipe. If you use pipes or FIFOs, you have to design your |
| application so that one process opens the pipe for reading before |
| another starts writing. If the reading process never starts, or |
| terminates unexpectedly, writing to the pipe or FIFO raises a |
| <code>SIGPIPE</code> signal. If <code>SIGPIPE</code> is blocked, handled or |
| ignored, the offending call fails with <code>EPIPE</code> instead. |
| |
| <p>Pipes and FIFO special files are discussed in more detail in <a href="Pipes-and-FIFOs.html#Pipes-and-FIFOs">Pipes and FIFOs</a>. |
| |
| <p>Another cause of <code>SIGPIPE</code> is when you try to output to a socket |
| that isn't connected. See <a href="Sending-Data.html#Sending-Data">Sending Data</a>. |
| </p></blockquote></div> |
| |
| <!-- signal.h --> |
| <!-- GNU --> |
| <div class="defun"> |
| — Macro: int <b>SIGLOST</b><var><a name="index-SIGLOST-2890"></a></var><br> |
| <blockquote><p><a name="index-lost-resource-signal-2891"></a>Resource lost. This signal is generated when you have an advisory lock |
| on an NFS file, and the NFS server reboots and forgets about your lock. |
| |
| <p>In the GNU system, <code>SIGLOST</code> is 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. |
| </p></blockquote></div> |
| |
| <!-- signal.h --> |
| <!-- BSD --> |
| <div class="defun"> |
| — Macro: int <b>SIGXCPU</b><var><a name="index-SIGXCPU-2892"></a></var><br> |
| <blockquote><p>CPU time limit exceeded. This signal is generated when the process |
| exceeds its soft resource limit on CPU time. See <a href="Limits-on-Resources.html#Limits-on-Resources">Limits on Resources</a>. |
| </p></blockquote></div> |
| |
| <!-- signal.h --> |
| <!-- BSD --> |
| <div class="defun"> |
| — Macro: int <b>SIGXFSZ</b><var><a name="index-SIGXFSZ-2893"></a></var><br> |
| <blockquote><p>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 <a href="Limits-on-Resources.html#Limits-on-Resources">Limits on Resources</a>. |
| </p></blockquote></div> |
| |
| </body></html> |
| |
