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exception.h
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#ifndef __EXCEPTION_H__
#define __EXCEPTION_H__
#include <exception>
#include "errno.h"
namespace async {
struct bad_socket:std::exception {
const char* what() { return "bad socket\n"; }
};
struct error_code:std::exception {
const char* what()noexcept {
switch (_error) {
case EPERM: return "Operation not permitted ";
case ENOENT: return "No such file or director";
case ESRCH: return "No such process ";
case EINTR: return "Interrupted system call ";
case EIO: return "I/O error ";
case ENXIO: return "No such device or address";
case E2BIG: return "Argument list too long ";
case ENOEXEC: return "Exec format error ";
case EBADF: return "Bad file number ";
case ECHILD: return "No child processes ";
case EAGAIN: return "Try again ";
case ENOMEM: return "Out of memory ";
case EACCES: return "Permission denied ";
case EFAULT: return "Bad address ";
case ENOTBLK: return "Block device required ";
case EBUSY: return "Device or resource busy ";
case EEXIST: return "File exists ";
case EXDEV: return "Cross-device link ";
case ENODEV: return "No such device ";
case ENOTDIR: return "Not a directory ";
case EISDIR: return "Is a directory ";
case EINVAL: return "Invalid argument ";
case ENFILE: return "File table overflow ";
case EMFILE: return "Too many open files ";
case ENOTTY: return "Not a typewriter ";
case ETXTBSY: return "Text file busy ";
case EFBIG: return "File too large ";
case ENOSPC: return "No space left on device ";
case ESPIPE: return "Illegal seek ";
case EROFS: return "Read-only file system ";
case EMLINK: return "Too many links ";
case EPIPE: return "Broken pipe ";
case EDOM: return "Math argument out of domain of func ";
case ERANGE: return "Math result not representable ";
case EDEADLK: return "Resource deadlock would occur ";
case ENAMETOOLONG: return "File name too long ";
case ENOLCK: return "No record locks available ";
case ENOSYS: return "Invalid system call number ";
case ENOTEMPTY: return "Directory not empty ";
case ELOOP: return "Too many symbolic links encountered ";
case ENOMSG: return "No message of desired type ";
case EIDRM: return "Identifier removed ";
case ECHRNG: return "Channel number out of range ";
case EL2NSYNC: return "Level 2 not synchronized ";
case EL3HLT: return "Level 3 halted ";
case EL3RST: return "Level 3 reset ";
case ELNRNG: return "Link number out of range ";
case EUNATCH: return "Protocol driver not attached ";
case ENOCSI: return "No CSI structure available ";
case EL2HLT: return "Level 2 halted ";
case EBADE: return "Invalid exchange ";
case EBADR: return "Invalid request descriptor ";
case EXFULL: return "Exchange full ";
case ENOANO: return "No anode ";
case EBADRQC: return "Invalid request code ";
case EBADSLT: return "Invalid slot ";
case EBFONT: return "Bad font file format ";
case ENOSTR: return "Device not a stream ";
case ENODATA: return "No data available ";
case ETIME: return "Timer expired ";
case ENOSR: return "Out of streams resources ";
case ENONET: return "Machine is not on the network ";
case ENOPKG: return "Package not installed ";
case EREMOTE: return "Object is remote ";
case ENOLINK: return "Link has been severed ";
case EADV: return "Advertise error ";
case ESRMNT: return "Srmount error ";
case ECOMM: return "Communication error on send ";
case EPROTO: return "Protocol error ";
case EMULTIHOP: return "Multihop attempted ";
case EDOTDOT: return "RFS specific error ";
case EBADMSG: return "Not a data message ";
case EOVERFLOW: return "Value too large for defined data type ";
case ENOTUNIQ: return "Name not unique on network ";
case EBADFD: return "File descriptor in bad state ";
case EREMCHG: return "Remote address changed ";
case ELIBACC: return "Can not access a needed shared library ";
case ELIBBAD: return "Accessing a corrupted shared library ";
case ELIBSCN: return ".lib section in a.out corrupted ";
case ELIBMAX: return "Attempting to link in too many shared librarie";
case ELIBEXEC: return "Cannot exec a shared library directly ";
case EILSEQ: return "Illegal byte sequence ";
case ERESTART: return "Interrupted system call should be restarted ";
case ESTRPIPE: return "Streams pipe error ";
case EUSERS: return "Too many users ";
case ENOTSOCK: return "Socket operation on non-socket ";
case EDESTADDRREQ: return " Destination address required ";
case EMSGSIZE: return " Message too long ";
case EPROTOTYPE: return " Protocol wrong type for socket ";
case ENOPROTOOPT: return " Protocol not available ";
case EPROTONOSUPPORT: return " Protocol not supported ";
case ESOCKTNOSUPPORT: return " Socket type not supported ";
case EOPNOTSUPP: return " Operation not supported on transport endpoint ";
case EPFNOSUPPORT: return " Protocol family not supported ";
case EAFNOSUPPORT: return " Address family not supported by protocol ";
case EADDRINUSE: return " Address already in use ";
case EADDRNOTAVAIL: return " Cannot assign requested address ";
case ENETDOWN: return " Network is down ";
case ENETUNREACH: return " Network is unreachable ";
case ENETRESET: return " Network dropped connection because of reset ";
case ECONNABORTED: return " Software caused connection abort ";
case ECONNRESET: return " Connection reset by peer ";
case ENOBUFS: return " No buffer space available ";
case EISCONN: return " Transport endpoint is already connected ";
case ENOTCONN: return " Transport endpoint is not connected ";
case ESHUTDOWN: return " Cannot send after transport endpoint shutdown ";
case ETOOMANYREFS: return " Too many references: cannot splice ";
case ETIMEDOUT: return " Connection timed out ";
case ECONNREFUSED: return " Connection refused ";
case EHOSTDOWN: return " Host is down ";
case EHOSTUNREACH: return " No route to host ";
case EALREADY: return " Operation already in progress ";
case EINPROGRESS: return " Operation now in progress ";
case ESTALE: return " Stale file handle ";
case EUCLEAN: return " Structure needs cleaning ";
case ENOTNAM: return " Not a XENIX named type file ";
case ENAVAIL: return " No XENIX semaphores available ";
case EISNAM: return " Is a named type file ";
case EREMOTEIO: return " Remote I/O error ";
case EDQUOT: return " Quota exceeded ";
case ENOMEDIUM: return " No medium found ";
case EMEDIUMTYPE: return " Wrong medium type ";
case ECANCELED: return " Operation Canceled ";
case ENOKEY: return " Required key not available ";
case EKEYEXPIRED: return " Key has expired ";
case EKEYREVOKED: return " Key has been revoked ";
case EKEYREJECTED: return " Key was rejected by service ";
case EOWNERDEAD: return " Owner died ";
case ENOTRECOVERABLE: return " State not recoverable ";
case ERFKILL: return " Operation not possible due to RF-kill ";
case EHWPOISON: return " Memory page has hardware error ";
default: return "No error ";
}
}
error_code()noexcept:_error{ errno } {}
error_code(int x)noexcept:_error{ x } {}
operator bool()noexcept { return _error != 0; }
operator int()noexcept { return _error; }
private:
int _error;
};
}
#endif