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Eintr Error Number


The event loop is stuck in recv and has no opportunity to check whether 'stop' was set to 1. share|improve this answer edited Dec 4 '15 at 13:51 Steve Lorimer 6,45063682 answered Feb 10 '11 at 16:49 ydroneaud 2,7481231 1 So, as long as I don't use signals in If you want to discuss contents of this page - this is the easiest way to do it. Independence of Noise at Each DFT Output Identifying a Star Trek TNG episode by text passage occuring in Carbon Based Lifeforms song "Neurotransmitter" Is it permitted to not take Ph.D. http://strongboxlinux.com/error-codes/eintr-error-4.php

Macro: int EIEIO Go home and have a glass of warm, dairy-fresh milk. Macro: int ETIMEDOUT A socket operation with a specified timeout received no response during the timeout period. By clicking Submit, you agree to the developerWorks terms of use. Hot Network Questions Can 'it' be used to refer to a person? read review

Linux Kernel Error Codes

However, on (very) old UNIX systems, there may be no and the declaration is needed. Something does not work as expected? My compiler uses about 30 of these, but not your particular one.

Instead of remembering these intricacies you can just remember a simple rule of thumb: When handling EINTR error, check any conditions that may have been altered by signal handlers. Macro: int EHOSTDOWN The remote host for a requested network connection is down. Macro: int EBADMSG Macro: int EIDRM Macro: int EMULTIHOP Macro: int ENODATA Macro: int ENOLINK Macro: int ENOMSG Macro: int ENOSR Macro: int ENOSTR Macro: int EOVERFLOW Macro: int EPROTO Macro: Eintr Linux Moreover, it makes your program non-portable (works only on Linux).

If you get Ctrl+C during a pselect(), it will immediately return (because you have unblocked signals with the sigmask argument to pselect). Posix Error Codes Macro: int ERESTART Macro: int ECHRNG Macro: int EL2NSYNC Macro: int EL3HLT Macro: int EL3RST Macro: int ELNRNG Macro: int EUNATCH Macro: int ENOCSI Macro: int EL2HLT Macro: int EBADE Macro: This should be a temporary condition, and it is unlikely to happen on a modern system.ENODEV -- No such device or you're attempting to do something inappropriate for the specified device http://cboard.cprogramming.com/c-programming/124120-errno-==-eintr-means-what-thank-u.html It will not work with modern versions of the C library.

Some interfaces are never restarted after being interrupted by a signal handler, regardless of the use of SA_RESTART; they always fail with the error EINTR when interrupted by a signal handler. Eintr Select No more file descriptors are available, so no more files can be opened.ENOENTNo such file or directory. For some system calls and library functions (e.g., getpriority(2)), -1 is a valid return on success. User of the library can use this function to handle signals in a race-free way.

Posix Error Codes

Your display name accompanies the content you post on developerWorks. That allows the event loop to wrap over and check the 'stop' variable: volatile int stop = 0; void handler (int) { stop = 1; } void event_loop (int sock) { Linux Kernel Error Codes On some systems chmod returns this error if you try to set the sticky bit on a non-directory file; see Setting Permissions. Linux Errno Example Yes No Additional feedback? 1500 characters remaining Submit Skip this Thank you!

As a result, the signal handler can only execute during the pselect(), so it is safe to only check the flag after pselect() returns. Macro: int ENETRESET A network connection was reset because the remote host crashed. Append content without editing the whole page source. Every library function that returns this error code also generates a SIGPIPE signal; this signal terminates the program if not handled or blocked. Eintr Errno

And let's pretend there's no EINTR and recv just continues waiting for data whatever happens: void event_loop (int sock) { while (1) { char buf [1]; recv (sock, buf, 1, 0); After some investigation, it turned out that Python runtime works more or less like the examples above. Only the errors listed above are required to exist on a POSIX 1003.1-conforming system, anything else is gravy.Listing 5. his comment is here Here is how I register signal handlers : https://gitorious.org/zepto-web-server/zepto-web-server/source/b1b03b9ecccfe9646e34caf3eb04689e2bbc54dd:src/signal-dispatcher-utility.c With this configuration: https://gitorious.org/zepto-web-server/zepto-web-server/source/b1b03b9ecccfe9646e34caf3eb04689e2bbc54dd:src/server-signals-support-utility.c Also here is a commit that I added some EINTR/EAGAIN handling in some system calls that I know

share|improve this answer answered Sep 8 '14 at 17:41 R.. 127k15187420 I have installed many signal handlers with sigaction and most of these use SA_RESTART. Eintr Signal What happened was that user called ZeroMQ's recv function from Python, which started waiting for incoming data. share|improve this answer answered Sep 8 '14 at 18:13 Jean-Baptiste Yunès 13.6k1645 The first thing I did was to take information from man pages and Open Group specification.

Slow things are terminal I/O and things which wait (select, wait, sleep, pause, etc).

No more space for writing is available on the device (for example, when the disk is full).ERANGEResult too large. Should I handle EINTR for the calls or the SA_RESTART is enough? –Efstathios Chatzikyriakidis Sep 8 '14 at 18:36 Personally, I generally opt for checking for EINTR over setting Related 0Socket Read In Multi-Threaded Application Returns Zero Bytes or EINTR (104)2Any workarounds for Python's select and handling of EINTR in Linux?3python: functions from math and os modules are interrupted by C Programming Error Codes Macro: int ENOTBLK A file that isn’t a block special file was given in a situation that requires one.

However, this is not a serious problem. Macro: int EISDIR File is a directory; you cannot open a directory for writing, or create or remove hard links to it. If Ctrl+C is pressed while the event loop is blocked in recv, you'll get a kind of deadlock: Signal handler is executed as expected, it sets 'stop' to 1, but then http://strongboxlinux.com/error-codes/enosys-error-number.php This condition never arises on GNU/Hurd systems.

However, ZeroMQ library used to have a blocking recv function, that (oops!) haven't returned EINTR and rather ignored the signals. Search Engine Optimisation provided by DragonByte SEO v2.0.32 (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd. Learn more. rename can cause this error if the file being renamed already has as many links as it can take (see Renaming Files).

I don't understand EINTR means and I also cannot find its definition in my whole program packet. Information in your profile (your name, country/region, and company name) is displayed to the public and will accompany any content you post, unless you opt to hide your company name. All the error names specified by POSIX.1 must have distinct values, with the exception of EAGAIN and EWOULDBLOCK, which may be the same. When you get this error, you can be sure that this particular function will always fail with ENOSYS unless you install a new version of the C library or the operating

The time now is 03:08 PM. The problem here is that you have to somehow force the blocking function to exit when signal happens. When you press Ctrl+C, program exits performing the clean-up beforehand. Mutexes are normally locked only for a very short time until some simple atomic operation is performed.

But it's not, so you can't. Macro: int ENOTTY Inappropriate I/O control operation, such as trying to set terminal modes on an ordinary file. developerWorks technical events and webcasts: Stay current with developerWorks technical events and webcasts. Thus, the errno value is not necessarily the same as the actual error code returned by a system call from the Windows operating systems.

See Sockets. Finally, signalfd is not a good option when you are implementing a library. We appreciate your feedback. If, for example, the main application already has a signalfd handling Ctrl+C signal, creating a new signalfd in the library causes the signal to be delivered alternatively to the main application