Invalid Argument Linux Error
Contents |
Aug 2004 on RedHat 7.3 #define EPERM 1 /* Operation not permitted */ #define ENOENT 2 /* No such file or directory */ #define ESRCH linux errno example 3 /* No such process */ #define EINTR 4 /* Interrupted system call posix error codes */ #define EIO 5 /* I/O error */ #define ENXIO 6 /* No such device or address */ #define errno.h linux kernel E2BIG 7 /* Arg list too long */ #define ENOEXEC 8 /* Exec format error */ #define EBADF 9 /* Bad file number */ #define ECHILD 10 /* No child processes */
Errno.h In C
#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 */ #define EBUSY 16 /* Device or resource busy */ #define EEXIST 17 /* File exists */ #define EXDEV 18 /* Cross-device link */ #define ENODEV 19 errno.h windows /* 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 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
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings errno 0 and policies of this site About Us Learn more about Stack Overflow
Ewouldblock
the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation
Ebadf
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 other. Join them; it http://www-numi.fnal.gov/offline_software/srt_public_context/WebDocs/Errors/unix_system_errors.html only takes a minute: Sign up Semaphore error in Linux - :Invalid argument error no :22 (EINVAL) up vote 0 down vote favorite I am trying to execute a C program in linux and I am getting error as "P_Semaphore :Invalid argument error no :22," can someone help Int P_Semaphore(int i_sem_id) { int i_code_returns; struct sembuf t_semop; #ifdef TRACE Debug(N_DEBUG_8, http://stackoverflow.com/questions/33606197/semaphore-error-in-linux-invalid-argument-error-no-22-einval "P_Semaphore", "Entree, i_sem_id=%d<<<<<<\n", i_sem_id); #endif t_semop.sem_num = 0; t_semop.sem_op = -1; t_semop.sem_flg = 0; do { i_code_retour = semop(i_sem_id, &t_semop, 0); } while ((i_code_returns == KO) && (errno == EINTR)); if (i_code_retour == KO) { printf( "%s(%d):Error semaphore making attempt %d,errno = %d\n", M_HEADER, i_sem_id, errno); perror("P_Semaphore"); } linux semaphore share|improve this question edited Nov 9 '15 at 10:26 rghome 2,75211231 asked Nov 9 '15 at 9:40 Yogarajan 42 add a comment| 1 Answer 1 active oldest votes up vote 0 down vote According to the manual on semop(2) EINVAL The semaphore set doesn't exist, or semid is less than zero, or nsops has a nonpositive value. So in your case, nsops is zero (non-positive). It should be one. This is the third parameter of the call: int semop(int semid, struct sembuf *sops, size_t nsops); share|improve this answer edited Nov 9 '15 at 10:10 answered Nov 9 '15 at 9:43 rghome 2,75211231 I checked , the semaphore set exists, also with a positive value –Yogarajan Nov 9 '15 at 9:47 nsops is the third param
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and http://stackoverflow.com/questions/39564700/error-in-mq-open-invalid-argument policies of this site About Us Learn more about Stack Overflow the company http://superuser.com/questions/385761/bash-script-invalid-argument 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 other. Join them; it only takes a invalid argument minute: Sign up error in mq_open: invalid argument up vote 0 down vote favorite Can anyone help me point out where is the errors in my code? Thank you in advance. Here is my code.I delete header files in code below.When I ran these code ,I always receive :mq_open:invalid argument #define FILE_MODE S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH struct mq_attr attr; int main (int argc,char **argv) invalid argument linux { int c; int flags; mqd_t mqd; flags = O_RDWR|O_CREAT; while ( (c = getopt (argc,argv,"em:z:")) != -1) { switch (c) { case 'e': flags |= O_EXCL; continue; case 'm': attr.mq_maxmsg = atol (optarg); break; case 'z': attr.mq_msgsize = atol (optarg); break; } } if (optind != argc - 1) { printf ("usage:mqcreate [-e] [-m maxseg -z msgsize]
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss 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 Super User Questions Tags Users Badges Unanswered Ask Question _ Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Bash Script: Invalid argument up vote 4 down vote favorite Why can't I use echo $1 > /sys/class/backlight/acpi_video0/brightness in a simple bash script? It gives me the error: echo: write error: Invalid argument. bash unix share|improve this question edited Feb 4 '12 at 6:29 Garrett 3,66411330 asked Feb 3 '12 at 22:31 David Thorisson 12826 Having the same issue while trying to do the same thing. I've tried things like function brightness { bright=$1; sudo su -c 'echo "$bright" > /sys/class/backlight/acpi_video0/brightness'; } too, but I still haven't figured it out. –hangtwenty Nov 2 '12 at 12:15 add a comment| 4 Answers 4 active oldest votes up vote 1 down vote accepted Try echo "$1" > /sys/class/backlight/acpi_video0/brightness. I bet the shell is expanding $1 and thus echo thinks it is receiving a bunch of arguments, rather than a string. share|improve this answer answered Feb 4 '12 at 0:35 surfasb 19.2k33663 add a comment| up vote 0 down vote You should check what the actual value of $1 is. This error means you are trying to write an invalid value -- either it's out of range or just in general not a meaningful value. At a glance, it appears that it accepts an integer in the range 0 to 8 (for me at least). share|improve this answer answered Feb 4 '12 at 6:42 FatalError 1,403813 add a comment| up vote 0 down vote Try using let #!/bin/bash POLKU='/sys/class/backlight/radeon_bl0/brightness' if [ $# -eq "0" ] then echo 100 > $POLKU else let gg=$1 echo $gg > $POLKU fi share|improve this answer answered Dec 8 '14 at 4:40 Guest 212 add a comment| up vote 0 down vote That file is a special file. It cannot be written to if what is written is not solely a number. If you try writing a number with echo, you will get a newline character at the end. echo -n solves the proble