Errno Error 22
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-l c option to qcc to link against this library. This library is usually included automatically. Description: The errno variable is set to certain error values by many functions whenever an error has occurred. This variable errno 14 pycurl error 22 may be implemented as a macro, but you can always examine or set it
Errno 14 Pycurl Error 22 Centos
as if it were a simple integer variable. Note: You can't assume that the value of errno is valid unless the errno error codes function that you've called indicates that an error has occurred. The runtime library never resets errno to 0. The documentation for a function might list special meanings for certain values of errno, but this doesn't errno no error mean that these are necessarily the only values that the function might set. Each thread in a multi-threaded program has its own error value in its thread local storage. No matter which thread you're in, you can simply refer to errno — it's defined in such a way that it refers to the correct variable for the thread. For more information, see "Local storage for private data" in the documentation for
Error Errno 10053
ThreadCreate(). The following variables are also defined in
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 /* errno socket error Interrupted system call */ #define EIO 5 /* I/O error */ #define ENXIO 6 /* errno 22 python No such device or address */ #define E2BIG 7 /* Arg list too long */ #define ENOEXEC 8 /* Exec format error
Errno 22 Invalid Argument
*/ #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 /* http://www.qnx.com/developers/docs/660/topic/com.qnx.doc.neutrino.lib_ref/topic/e/errno.html Permission denied */ #define EFAULT 14 /* Bad address */ #define ENOTBLK 15 /* Block device required */ #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 http://www-numi.fnal.gov/offline_software/srt_public_context/WebDocs/Errors/unix_system_errors.html 23 /* File table overflow */ #define EMFILE 24 /* Too many open files */ #define ENOTTY 25 /* Not a typewriter */ #define ETXTBSY 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 /* L
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss http://stackoverflow.com/questions/29382550/why-is-errno-set-to-22-mq-open-posix the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each error 22 other. Join them; it only takes a minute: Sign up Why is errno set to 22: mq_open() POSIX up vote 0 down vote favorite Im receiving errno 22 when trying to create a message_queue in POSIX with C. As far as I can tell, by comparing to example code available on the web, I've set the parameters correctly. errno 14 pycurl Here is a snippet: int open_flags; mqd_t mqfd; int bytes_per_msg; struct mq_attr attr; unsigned int* msgbuff; printf("from 1 to 400, what is N? : "); scanf("%d", &n); bytes_per_msg = (n + 1) * (sizeof(unsigned int)); msgbuff = (unsigned int*)malloc(bytes_per_msg); open_flags = O_CREAT|O_RDWR; attr.mq_maxmsg = n; attr.mq_msgsize = bytes_per_msg; attr.mq_flags = 0; mqfd = mq_open("/myqueue", open_flags, 0666, &attr); if(mqfd == -1){ printf("queue creation failed, ERRNO: %d\n",errno); } EDIT: My apologies for not being more clear. Errno 22 is INVALID ARGUMENT. --The meanings of the error numbers can be found on errno.h c posix message-queue share|improve this question edited Apr 1 '15 at 4:47 asked Apr 1 '15 at 3:52 Chris 53 2 Check what the errno refers to with perror(). –teppic Apr 1 '15 at 4:00 1 The integer value of errno is useless! The message indexed by errno is priceless. How is it that people are aware of the existence of errno and do not know perror and strerror? (This is a serious question; where did you learn of errno