Error Eintr
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codes can’t occur on GNU systems, but they can occur using the GNU C Library on other systems. Macro: int EPERM Operation not permitted; only the owner of the file (or other resource) or processes with special privileges can perform linux kernel error codes the operation. Macro: int ENOENT No such file or directory. This is a “file doesn’t exist” eintr errno error for ordinary files that are referenced in contexts where they are expected to already exist. Macro: int ESRCH No process matches the eintr linux specified process ID. Macro: int EINTR Interrupted function call; an asynchronous signal occurred and prevented completion of the call. When this happens, you should try the call again. You can choose to have functions resume after a signal
Eintr Signal
that is handled, rather than failing with EINTR; see Interrupted Primitives. Macro: int EIO Input/output error; usually used for physical read or write errors. Macro: int ENXIO No such device or address. The system tried to use the device represented by a file you specified, and it couldn’t find the device. This can mean that the device file was installed incorrectly, or that the physical device is missing or not correctly attached to the computer. Macro: int E2BIG select eintr Argument list too long; used when the arguments passed to a new program being executed with one of the exec functions (see Executing a File) occupy too much memory space. This condition never arises on GNU/Hurd systems. Macro: int ENOEXEC Invalid executable file format. This condition is detected by the exec functions; see Executing a File. Macro: int EBADF Bad file descriptor; for example, I/O on a descriptor that has been closed or reading from a descriptor open only for writing (or vice versa). Macro: int ECHILD There are no child processes. This error happens on operations that are supposed to manipulate child processes, when there aren’t any processes to manipulate. Macro: int EDEADLK Deadlock avoided; allocating a system resource would have resulted in a deadlock situation. The system does not guarantee that it will notice all such situations. This error means you got lucky and the system noticed; it might just hang. See File Locks, for an example. Macro: int ENOMEM No memory available. The system cannot allocate more virtual memory because its capacity is full. Macro: int EACCES Permission denied; the file permissions do not allow the attempted operation. Macro: int EFAULT Bad address; an invalid pointer was detected. On GNU/Hurd systems, this error never happens; you get a signal instead. Macro: int ENOTBLK A file that isn’t a block special file was given in a situation that
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Posix Error Codes
Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode 02-22-2010 #1 Rede View Profile View Forum Posts Registered User Join Date Feb 2010
C Programming Error Codes
Posts 13 (errno == EINTR) means WHAT? thank u! I read a program it has : if (errno == EINTR) in that program , if this is true, it will continue... else will throw a exception.. I don't understand EINTR means http://www.gnu.org/s/libc/manual/html_node/Error-Codes.html and I also cannot find its definition in my whole program packet. If anybody knew, please tell me. thank u! 02-22-2010 #2 Adak View Profile View Forum Posts Registered User Join Date Sep 2006 Posts 8,868 errno.h has a list of errors with these mnemonics. For instance ENOFILE, means you tried to access a file that doesn't exist, etc. They all start with E and are all caps. My compiler uses about 30 of these, but not your particular one. They can http://cboard.cprogramming.com/c-programming/124120-errno-==-eintr-means-what-thank-u.html be used to index into the sys_errlist array and output with perror. Googling on that error mnemonic should get you the answer, quickly. 02-22-2010 #3 Rede View Profile View Forum Posts Registered User Join Date Feb 2010 Posts 13 thank you Adak, yes I know it. it's fork()'s error. Wish somebody know more detail and tell me. Coz I just find general description about this error, still cannot solve my question about my reading program. 02-22-2010 #4 Adak View Profile View Forum Posts Registered User Join Date Sep 2006 Posts 8,868 If you post up the code, when someone comes along with more savvy on this, they'll be much more helpful, seeing the code. I thought it might be an interrupt error, but that's just my guess at it. Google had nothing, huh? 02-22-2010 #5 brewbuck View Profile View Forum Posts Officially An Architect Join Date Mar 2007 Location Portland, OR Posts 7,396 EINTR means "This call did not succeed because it was interrupted. However, if you try again, it will probably work." In other words, EINTR is not a fatal error -- it just means you should retry whatever you were attempting. (Edit: According to my man-page, fork() never should return EINTR, although it may return EAGAIN under certain cases) Code: //try //{ if (a) do { f( b); } while(1); else do { f(!b); } while(1); //} 02-23-2010 #6 pavun_cool View Profile View Forum Posts Registered User Join Date Feb 2010 Posts 4
Aug 2004 on RedHat 7.3 #define EPERM 1 /* Operation not permitted */ #define ENOENT 2 /* No such file or directory */ #define ESRCH 3 /* No such process */ #define EINTR 4 /* Interrupted system call */ #define EIO 5 /* I/O http://www-numi.fnal.gov/offline_software/srt_public_context/WebDocs/Errors/unix_system_errors.html error */ #define ENXIO 6 /* No such device or address */ #define E2BIG 7 /* Arg list too long */ #define ENOEXEC 8 /* Exec format error */ #define EBADF 9 /* Bad file number */ #define ECHILD 10 /* No child processes */ #define EAGAIN 11 /* Try again */ #define ENOMEM 12 /* Out of memory */ #define EACCES 13 /* Permission denied */ #define EFAULT 14 /* Bad address */ #define ENOTBLK 15 /* Block device required error codes */ #define EBUSY 16 /* Device or resource busy */ #define EEXIST 17 /* File exists */ #define EXDEV 18 /* Cross-device link */ #define ENODEV 19 /* No such device */ #define ENOTDIR 20 /* Not a directory */ #define EISDIR 21 /* Is a directory */ #define EINVAL 22 /* Invalid argument */ #define ENFILE 23 /* File table overflow */ #define EMFILE 24 /* Too many open files */ #define ENOTTY 25 /* Not a typewriter */ #define ETXTBSY linux kernel error 26 /* Text file busy */ #define EFBIG 27 /* File too large */ #define ENOSPC 28 /* No space left on device */ #define ESPIPE 29 /* Illegal seek */ #define EROFS 30 /* Read-only file system */ #define EMLINK 31 /* Too many links */ #define EPIPE 32 /* Broken pipe */ #define EDOM 33 /* Math argument out of domain of func */ #define ERANGE 34 /* Math result not representable */ #define EDEADLK 35 /* Resource deadlock would occur */ #define ENAMETOOLONG 36 /* File name too long */ #define ENOLCK 37 /* No record locks available */ #define ENOSYS 38 /* Function not implemented */ #define ENOTEMPTY 39 /* Directory not empty */ #define ELOOP 40 /* Too many symbolic links encountered */ #define EWOULDBLOCK EAGAIN /* Operation would block */ #define ENOMSG 42 /* No message of desired type */ #define EIDRM 43 /* Identifier removed */ #define ECHRNG 44 /* Channel number out of range */ #define EL2NSYNC 45 /* Level 2 not synchronized */ #define EL3HLT 46 /* Level 3 halted */ #define EL3RST 47 /* Level 3 reset */ #define ELNRNG 48 /* Link number out of range */ #define EUNATCH 49 /* Protocol driver not attached */ #define ENOCSI 50 /* No CSI structure available */ #define EL2HLT 51 /* Level 2 halted */ #define EBADE 52 /* Invalid exchange */ #define EBADR 53 /* Invalid request descriptor */ #define EXFULL 54 /* Ex