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/*
 * Copyright LWJGL. All rights reserved.
 * License terms: https://www.lwjgl.org/license
 * MACHINE GENERATED FILE, DO NOT EDIT
 */
package org.lwjgl.system.libc;

import org.lwjgl.system.*;


/** Native bindings to errno.h. */
public class LibCErrno {

    /**
     * Standard error codes.
     * 
     * Enum values:
     * 
     * 
     * {@link #EPERM EPERM} - Operation not permitted
     * {@link #ENOENT ENOENT} - No such file or directory
     * {@link #ESRCH ESRCH} - No such process
     * {@link #EINTR EINTR} - Interrupted function
     * {@link #EIO EIO} - I/O error
     * {@link #ENXIO ENXIO} - No such device or address
     * {@link #E2BIG E2BIG} - Argument list too long
     * {@link #ENOEXEC ENOEXEC} - Exec format error
     * {@link #EBADF EBADF} - Bad file number
     * {@link #ECHILD ECHILD} - No spawned processes
     * {@link #EAGAIN EAGAIN} - No more processes or not enough memory or maximum nesting level reached
     * {@link #ENOMEM ENOMEM} - Not enough memory
     * {@link #EACCES EACCES} - Permission denied
     * {@link #EFAULT EFAULT} - Bad address
     * {@link #EBUSY EBUSY} - Device or resource busy
     * {@link #EEXIST EEXIST} - File exists
     * {@link #EXDEV EXDEV} - Cross-device link
     * {@link #ENODEV ENODEV} - No such device
     * {@link #ENOTDIR ENOTDIR} - Not a directory
     * {@link #EISDIR EISDIR} - Is a directory
     * {@link #EINVAL EINVAL} - Invalid argument
     * {@link #ENFILE ENFILE} - Too many files open in system
     * {@link #EMFILE EMFILE} - Too many open files
     * {@link #ENOTTY ENOTTY} - Inappropriate I/O control operation
     * {@link #EFBIG EFBIG} - File too large
     * {@link #ENOSPC ENOSPC} - No space left on device
     * {@link #ESPIPE ESPIPE} - Invalid seek
     * {@link #EROFS EROFS} - Read-only file system
     * {@link #EMLINK EMLINK} - Too many links
     * {@link #EPIPE EPIPE} - Broken pipe
     * {@link #EDOM EDOM} - Math argument
     * {@link #ERANGE ERANGE} - Result too large
     * {@link #EDEADLK EDEADLK} - Resource deadlock would occur
     * {@link #EDEADLOCK EDEADLOCK} - Same as EDEADLK for compatibility with older Microsoft C versions
     * {@link #ENAMETOOLONG ENAMETOOLONG} - Filename too long
     * {@link #ENOLCK ENOLCK} - No locks available
     * {@link #ENOSYS ENOSYS} - Function not supported
     * {@link #ENOTEMPTY ENOTEMPTY} - Directory not empty
     * {@link #EILSEQ EILSEQ} - Illegal byte sequence
     * {@link #STRUNCATE STRUNCATE} - String was truncated
     * 
     */
    public static final int
        EPERM        = 0x1,
        ENOENT       = 0x2,
        ESRCH        = 0x3,
        EINTR        = 0x4,
        EIO          = 0x5,
        ENXIO        = 0x6,
        E2BIG        = 0x7,
        ENOEXEC      = 0x8,
        EBADF        = 0x9,
        ECHILD       = 0xA,
        EAGAIN       = 0xB,
        ENOMEM       = 0xC,
        EACCES       = 0xD,
        EFAULT       = 0xE,
        EBUSY        = 0x10,
        EEXIST       = 0x11,
        EXDEV        = 0x12,
        ENODEV       = 0x13,
        ENOTDIR      = 0x14,
        EISDIR       = 0x15,
        EINVAL       = 0x16,
        ENFILE       = 0x17,
        EMFILE       = 0x18,
        ENOTTY       = 0x19,
        EFBIG        = 0x1B,
        ENOSPC       = 0x1C,
        ESPIPE       = 0x1D,
        EROFS        = 0x1E,
        EMLINK       = 0x1F,
        EPIPE        = 0x20,
        EDOM         = 0x21,
        ERANGE       = 0x22,
        EDEADLK      = 0x24,
        EDEADLOCK    = 0x24,
        ENAMETOOLONG = 0x26,
        ENOLCK       = 0x27,
        ENOSYS       = 0x28,
        ENOTEMPTY    = 0x29,
        EILSEQ       = 0x2A,
        STRUNCATE    = 0x50;

    static { Library.initialize(); }

    protected LibCErrno() {
        throw new UnsupportedOperationException();
    }

    // --- [ errno ] ---

    /**
     * Returns the integer variable {@code errno}, which is set by system calls and some library functions in the event of an error to indicate what went
     * wrong. Its value is significant only when the return value of the call indicated an error (i.e., -1 from most system calls; -1 or {@code NULL} from most
     * library functions); a function that succeeds is allowed to change errno.
     * 
     * LWJGL note: This function cannot be used after another JNI call to a function, because the last error resets before that call returns. For this
     * reason, LWJGL stores the last error in thread-local storage, you can use {@link #getErrno} to access it.
     */
    public static native int errno();

    // --- [ getErrno ] ---

    /**
     * Returns the integer variable {@code errno}, which is set by system calls and some library functions in the event of an error to indicate what went
     * wrong. Its value is significant only when the return value of the call indicated an error (i.e., -1 from most system calls; -1 or {@code NULL} from most
     * library functions); a function that succeeds is allowed to change errno.
     * 
     * LWJGL note: This method has a meaningful value only after another LWJGL JNI call. It does not return {@code errno} from errno.h, but the
     * thread-local error code stored by a previous JNI call.
     */
    public static native int getErrno();

}