Perhaps you'd get this if you had a recursive directory looping back on itself. #define EPIPE 32 /* Broken pipe */ Fairly obvious- the reading or writing side of a pipe It's used for many IPC errors also. #define ENFILE 23 /* File table overflow */ When the system itself can open no more files, this is the error returned. #define EMFILE Macro: int ENOBUFS The kernel’s buffers for I/O operations are all in use. Macro: int ENOSYS Function not implemented.
Socket calls can also return this. #define EROFS 30 /* Read-only file system */ Not much to be said about that. #define EMLINK 31 /* Too many links */ Too many Macro: int EPFNOSUPPORT The socket communications protocol family you requested is not supported. Portability Note: In many older Unix systems, this condition was indicated by EWOULDBLOCK, which was a distinct error code different from EAGAIN. Macro: int ENOEXEC Invalid executable file format. http://www-numi.fnal.gov/offline_software/srt_public_context/WebDocs/Errors/unix_system_errors.html
The new third edition supports today's leading platforms, reflects new technical advances and best practices, and aligns with Version 4 of the Single UNIX Specification. Macro: int EUSERS The file quota system is confused because there are too many users. The programmer needs to know whether the read returned because it got its data, because there is no more data, or if a signal interrupted it.
Terms Privacy Security Status Help You can't perform that action at this time. The system calls shown as examples may not be the only functions that will return these errors; you really need access to the source to know that. #define EPERM 1 /* As mentioned above, drivers may return this for inappropriate ioctl() calls. Errno.h Windows Upon successful initialisation, the state of the mutex becomes initialised and unlocked.
Macro: int EDOM Domain error; used by mathematical functions when an argument value does not fall into the domain over which the function is defined. Posix Error Codes Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * See File Locks, for an example. http://www.ibm.com/support/knowledgecenter/ssw_ibm_i_72/apis/unix14.htm Macro: int ENAMETOOLONG Filename too long (longer than PATH_MAX; see Limits for Files) or host name too long (in gethostname or sethostname; see Host Identification).
RagoAddison-Wesley, 2013 - 994 pagina's 0 Recensieshttps://books.google.nl/books/about/Advanced_Programming_in_the_UNIX_Environ.html?hl=nl&id=_kpsAQAAQBAJFor more than twenty years, serious C programmers have relied on one book for practical, in-depth knowledge of the programming interfaces that drive the UNIX Errno.h Linux Kernel Duplicate descriptors do count toward this limit. He also thoroughly covers threads and multithreaded programming, and socket-based IPC. A temporary resource shortage made an operation impossible.
Some of these are marked POSIX.1, indicating that the name is defined by POSIX.1-2001, or C99, indicating that the name is defined by C99. useful source An implementation may cause pthread_mutex_destroy() to set the object referenced by mutex to an invalid value. Linux Socket Error Codes A destroyed mutex object can be re-initialised using pthread_mutex_init(); the results of otherwise referencing the object after it has been destroyed are undefined. Linux Errno Example See Sockets.
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 ENOENT No such file or directory. Macro: int EXDEV An attempt to make an improper link across file systems was detected. Linux Errno To String
Macro: int EPROTOTYPE The socket type does not support the requested communications protocol. Often using a debugger to run a program is considered having it open for writing and will cause this error. (The name stands for “text file busy”.) This is not an Macro: int ENEEDAUTH ??? Macro: int ESRCH No process matches the specified process ID.
SEE ALSO pthread_mutex_getprioceiling(), pthread_mutex_lock(), pthread_mutex_unlock(), pthread_mutex_setprioceiling(), pthread_mutex_trylock(), pthread_mutexattr_getpshared(), pthread_mutexattr_setpshared(),
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Door gebruik te maken van onze diensten, gaat u akkoord met ons gebruik van cookies.Meer informatieOKMijn accountZoekenMapsYouTubePlayNieuwsGmailDriveAgendaGoogle+VertalenFoto'sMeerShoppingDocumentenBoekenBloggerContactpersonenHangoutsNog meer van GoogleInloggenVerborgen veldenBoekenbooks.google.nl - For more than twenty years, serious C programmers have Streams use this if you attempt to link a stream onto itself. RETURN VALUE If successful, the pthread_mutex_init() and pthread_mutex_destroy() functions return zero. Errno 0 The author then presents the programming interfaces most important to building communication software in System V, including STREAMS, the Transport Layer Interface library, Sockets, and Remote Procedure Calls.
See Socket Addresses. for a discussion about trying to solve such a problem. #define ENOMEM 12 /* Out of memory */ (Linux) #define ENOMEM 12 /* Not enough space */ (SCO Unix) If you Repairing this condition usually requires unmounting, possibly repairing and remounting the file system. Every library function that returns this error code also generates a SIGPIPE signal; this signal terminates the program if not handled or blocked.
Macro: int EINVAL Invalid argument. Time for a larger disk. Building on Rich's pioneering work, he begins with files, directories, and processes, carefully laying the groundwork for more advanced techniques, such as signal handling and terminal I/O. Now updated for today's systems, this third edition will be even more valuable.
It is probably a good idea to delay for a few seconds before trying it again, to allow time for other processes to release scarce resources. Inappropriate requests ( reading from a write only device) may return this or EINVAL- there's seems to be plenty of confusion as to which to use. #define ENOTDIR 20 /* Not Macro: int EGRATUITOUS This error code has no purpose. 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).
Now, once again, Rich's colleague Steve Rago has thoroughly updated this classic work. See Limits on Resources, for details on the RLIMIT_NPROC limit. The macro EWOULDBLOCK is another name for EAGAIN; they are always the same in the GNU C Library. The plock() function ( which locks areas of a process into memory) returns this if you attempt to use it twice on the same memory segment.
If attr is NULL, the default mutex attributes are used; the effect is the same as passing the address of a default mutex attributes object. In the final chapter, the author brings the material from previous chapters together, presenting the design of a SLIP communication package. The readv() and writev() calls complain this way if you give them too large an array of buffers. However, it can also be returned for trying to open a non-existent IPC channel, or if one of the directories in a pathname does not exist. #define ESRCH 3 /* No
It isn't clear to me whether any of these could return ENOPKG for an open() call. However, on (very) old UNIX systems, there may be no
Valid error numbers are all nonzero; errno is never set to zero by any system call or library function. See Fork failing, but WHY?? Sign in to comment Contact GitHub API Training Shop Blog About © 2016 GitHub, Inc. The article was very informative and was a great help.