Once signals are blocked, the flags set by the handlers can be checked and pselect is called which unblocks the signals is an atomic manner. for the devices. Macro: int EPIPE Broken pipe; there is no process reading from the other end of a pipe. This error is never generated by GNU/Hurd systems, but it can result from an operation to an NFS server running another operating system. http://dssoundware.com/error-codes/eintr-error-4.php
I'll mention it in the article. All rights reserved. If you get EAGAIN when you didn't ask for it, there's a serious logic error either in your program or in the kernel. –tmyklebu Sep 8 '14 at 18:39 | show Most system headers contain at least this much information for the standard errno values, so don't be afraid to take a look. http://www.gnu.org/s/libc/manual/html_node/Error-Codes.html
This article familiarizes you with UNIX error reporting in the standard C library and (hopefully) encourages you to report and handle errors in a user-friendly way.Let's dig in!Back to topBefore you However, the execution was blocked inside ZeroMQ's recv function which never returned back to the Python runtime and thus the termination never happened. I'm using HANDLE_EINTR and HANDLE_EAGAIN macros (grabbed from Chrome source code). –Efstathios Chatzikyriakidis Sep 8 '14 at 18:11 Any other ideas? Note that any number of linked channels count as just one file opening; see Linked Channels.
Notify administrators if there is objectionable content in this page. For instance ENOFILE, means you tried to access a file that doesn't exist, etc. I have the following system calls in C: access() unlink() setsockopt() fcntl() setsid() socket() bind() listen() I want to know if they may fail with error code -1 and errno EINTR/EAGAIN. Eintr Linux Macro: int EUSERS The file quota system is confused because there are too many users.
Should I serve jury duty when I have no respect for the judge? Posix Error Codes How to challenge optimized player with Sharpshooter feat Proof of infinitely many prime numbers Why can't QEMU allocate the memory if the Linux caches are too big? Browse other questions tagged c posix interrupt system-calls eintr or ask your own question. Subscribed!
This trick is even applicable in libraries. Eintr Select ENOBUFS No buffer space available (POSIX.1 (XSI STREAMS option)) ENODATA No message is available on the STREAM head read queue (POSIX.1) ENODEV No such device (POSIX.1) ENOENT No such file or Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. Valid error numbers are all nonzero; errno is never set to zero by any system call or library function.
If you see somebody checking EINTR on, say, seteuid() then the programmer is nuts. –John Hascall Sep 8 '14 at 19:27 | show 3 more comments Did you find this question This error can happen in a few different situations: An operation that would block was attempted on an object that has non-blocking mode selected. Linux Kernel Error Codes But I think that some of these or even all may return EINTR because they may use inner modules or calls that may fail with EINTR and back propagate that error. Linux Errno Example Last edited on 16 Dec 2012 22:07 by martin_sustrik Show more Reply Options Unfold by martin_sustrik, 16 Dec 2012 22:07 Fold Alex (guest) 21 Oct 2014 13:40 On Windows this is
Macro: int EXDEV An attempt to make an improper link across file systems was detected. An attempt was made to move a file to a different device (using the rename function).STRUNCATEA string copy or concatenation resulted in a truncated string. The error can also occur in an attempt to rename a file or directory or to remove an existing directory. Male header pins on Arduino Uno 8051 Internal Pull-up Value? Eintr Errno
Macro: int EPROGMISMATCH ??? Using -njo and -cxjo for family members 2048-like array shift Very simple number line with points Writing referee report: found major error, now what? share|improve this answer edited Mar 11 '13 at 18:48 Shmil The Cat 3,40311328 answered Feb 10 '11 at 16:20 Maxim Egorushkin 52.2k459109 add a comment| up vote 1 down vote I http://dssoundware.com/error-codes/eintr-error.php You use non-blocking sockets and in the select() you always monitor your sockets and the read end of the pipe.
example : After calling some function perror("function_name"); If any error occurred , it will tell the specific error , description. Eintr Signal This can mean that the function does not implement a particular command or option value or flag bit at all. C/C++ Language and Standard Libraries C Run-Time Library Reference Global Constants Global Constants errno Constants errno Constants errno Constants 32-Bit Windows Time/Date Formats BUFSIZ CLOCKS_PER_SEC, CLK_TCK Commit-To-Disk Constants _CRT_DISABLE_PERFCRIT_LOCKS Data Type
We appreciate your feedback. On the other hand, if you get Ctrl+C while you're not in pselect(), the signal handler will not run until you call pselect() (because signals are blocked), and when you finally No more space for writing is available on the device (for example, when the disk is full).ERANGEResult too large. C Programming Error Codes An attempt was made to execute a file that is not executable or that has an invalid executable-file format.ENOMEMNot enough core.
There sure are a lot of possible standard error valuesError # 0: Unknown error: 0 Error # 1: Operation not permitted Error # 2: No such file or directory Error # The no error error value#if !defined( EOK ) # define EOK 0 /* no error */ #endifUsing the sys_nerr global variable and the strerror() function, you can easily whip up some However, interrupting the program using Ctrl+C kills it immediately, which may be a problem if we want to do some clean-up, for example, release some system-wide resources. http://dssoundware.com/error-codes/enosys-error-number.php They are required values on non-Posix systems.
IBM trial software: Build your next development project with software for download directly from developerWorks.Discuss Participate in the AIX and UNIX forums: AIX 5L -- technicalAIX for Developers ForumCluster Systems ManagementIBM Macro: int EREMOTE An attempt was made to NFS-mount a remote file system with a file name that already specifies an NFS-mounted file. (This is an error on some operating systems, Did Umbridge hold prejudices towards muggle-borns before the fall of the Ministry? Macro: int ENETDOWN A socket operation failed because the network was down.
Some of the values in ERRNO.H are present to maintain compatibility with the UNIX family of operating systems.The errno values in a 32-bit Windows operating system are a subset of the To understand the rationale behind EINTR, let's do a little coding exercise. Macro: int EAGAIN Resource temporarily unavailable; the call might work if you try again later. Listing 3 shows you how to use this thread-safe version.Listing 3.