errnomodule.c

python s60 1.4.5版本的源代码

/* Portions Copyright (c) 2005 Nokia Corporation */

/* Errno module */

#include "Python.h"

/* Mac with GUSI has more errors than those in errno.h */
#ifdef USE_GUSI
#include <sys/errno.h>
#endif

/* Windows socket errors (WSA*): XXX is this the correct path ???  */
#ifdef MS_WINDOWS
#include <winsock.h>
#endif

/*
 * Pull in the system error definitions
 */ 

static const PyMethodDef errno_methods[] = {
	{NULL,	      	NULL}
};

/* Helper function doing the dictionary inserting */

static void
_inscode(PyObject *d, PyObject *de, char *name, int code)
{
	PyObject *u = PyString_FromString(name);
	PyObject *v = PyInt_FromLong((long) code);

	/* Don't bother checking for errors; they'll be caught at the end
	 * of the module initialization function by the caller of
	 * initerrno().
	 */
	if (u && v) {
		/* insert in modules dict */
		PyDict_SetItem(d, u, v);
		/* insert in errorcode dict */
		PyDict_SetItem(de, v, u);
	}
	Py_XDECREF(u);
	Py_XDECREF(v);
}

static const char errno__doc__ [] =
#ifndef SYMBIAN
"This module makes available standard errno system symbols.\n\
\n\
The value of each symbol is the corresponding integer value,\n\
e.g., on most systems, errno.ENOENT equals the integer 2.\n\
\n\
The dictionary errno.errorcode maps numeric codes to symbol names,\n\
e.g., errno.errorcode[2] could be the string 'ENOENT'.\n\
\n\
Symbols that are not relevant to the underlying system are not defined.\n\
\n\
To map error codes to error messages, use the function os.strerror(),\n\
e.g. os.strerror(2) could return 'No such file or directory'.";
#else
"";
#endif

DL_EXPORT(void)
initerrno(void)
{
	PyObject *m, *d, *de;
	m = Py_InitModule3("errno", errno_methods, errno__doc__);
	d = PyModule_GetDict(m);
	de = PyDict_New();
	if (!d || !de || PyDict_SetItemString(d, "errorcode", de) < 0)
		return;

/* Macro so I don't have to edit each and every line below... */
#define inscode(d, ds, de, name, code, comment) _inscode(d, de, name, code)

	/*
	 * The names and comments are borrowed from linux/include/errno.h,
	 * which should be pretty all-inclusive
	 */ 

#ifdef ENODEV
	inscode(d, ds, de, "ENODEV", ENODEV, "No such device");
#endif
#ifdef ENOCSI
	inscode(d, ds, de, "ENOCSI", ENOCSI, "No CSI structure available");
#endif
#ifdef EHOSTUNREACH
	inscode(d, ds, de, "EHOSTUNREACH", EHOSTUNREACH, "No route to host");
#else
#ifdef WSAEHOSTUNREACH
	inscode(d, ds, de, "EHOSTUNREACH", WSAEHOSTUNREACH, "No route to host");
#endif
#endif
#ifdef ENOMSG
	inscode(d, ds, de, "ENOMSG", ENOMSG, "No message of desired type");
#endif
#ifdef EUCLEAN
	inscode(d, ds, de, "EUCLEAN", EUCLEAN, "Structure needs cleaning");
#endif
#ifdef EL2NSYNC
	inscode(d, ds, de, "EL2NSYNC", EL2NSYNC, "Level 2 not synchronized");
#endif
#ifdef EL2HLT
	inscode(d, ds, de, "EL2HLT", EL2HLT, "Level 2 halted");
#endif
#ifdef ENODATA
	inscode(d, ds, de, "ENODATA", ENODATA, "No data available");
#endif
#ifdef ENOTBLK
	inscode(d, ds, de, "ENOTBLK", ENOTBLK, "Block device required");
#endif
#ifdef ENOSYS
	inscode(d, ds, de, "ENOSYS", ENOSYS, "Function not implemented");
#endif
#ifdef EPIPE
	inscode(d, ds, de, "EPIPE", EPIPE, "Broken pipe");
#endif
#ifdef EINVAL
	inscode(d, ds, de, "EINVAL", EINVAL, "Invalid argument");
#else
#ifdef WSAEINVAL
	inscode(d, ds, de, "EINVAL", WSAEINVAL, "Invalid argument");
#endif
#endif
#ifdef EOVERFLOW
	inscode(d, ds, de, "EOVERFLOW", EOVERFLOW, "Value too large for defined data type");
#endif
#ifdef EADV
	inscode(d, ds, de, "EADV", EADV, "Advertise error");
#endif
#ifdef EINTR
	inscode(d, ds, de, "EINTR", EINTR, "Interrupted system call");
#else
#ifdef WSAEINTR
	inscode(d, ds, de, "EINTR", WSAEINTR, "Interrupted system call");
#endif
#endif
#ifdef EUSERS
	inscode(d, ds, de, "EUSERS", EUSERS, "Too many users");
#else
#ifdef WSAEUSERS
	inscode(d, ds, de, "EUSERS", WSAEUSERS, "Too many users");
#endif
#endif
#ifdef ENOTEMPTY
	inscode(d, ds, de, "ENOTEMPTY", ENOTEMPTY, "Directory not empty");
#else
#ifdef WSAENOTEMPTY
	inscode(d, ds, de, "ENOTEMPTY", WSAENOTEMPTY, "Directory not empty");
#endif
#endif
#ifdef ENOBUFS
	inscode(d, ds, de, "ENOBUFS", ENOBUFS, "No buffer space available");
#else
#ifdef WSAENOBUFS
	inscode(d, ds, de, "ENOBUFS", WSAENOBUFS, "No buffer space available");
#endif
#endif
#ifdef EPROTO
	inscode(d, ds, de, "EPROTO", EPROTO, "Protocol error");
#endif
#ifdef EREMOTE
	inscode(d, ds, de, "EREMOTE", EREMOTE, "Object is remote");
#else
#ifdef WSAEREMOTE
	inscode(d, ds, de, "EREMOTE", WSAEREMOTE, "Object is remote");
#endif
#endif
#ifdef ENAVAIL
	inscode(d, ds, de, "ENAVAIL", ENAVAIL, "No XENIX semaphores available");
#endif
#ifdef ECHILD
	inscode(d, ds, de, "ECHILD", ECHILD, "No child processes");
#endif
#ifdef ELOOP
	inscode(d, ds, de, "ELOOP", ELOOP, "Too many symbolic links encountered");
#else
#ifdef WSAELOOP
	inscode(d, ds, de, "ELOOP", WSAELOOP, "Too many symbolic links encountered");
#endif
#endif
#ifdef EXDEV
	inscode(d, ds, de, "EXDEV", EXDEV, "Cross-device link");
#endif
#ifdef E2BIG
	inscode(d, ds, de, "E2BIG", E2BIG, "Arg list too long");
#endif
#ifdef ESRCH
	inscode(d, ds, de, "ESRCH", ESRCH, "No such process");
#endif
#ifdef EMSGSIZE
	inscode(d, ds, de, "EMSGSIZE", EMSGSIZE, "Message too long");
#else
#ifdef WSAEMSGSIZE
	inscode(d, ds, de, "EMSGSIZE", WSAEMSGSIZE, "Message too long");
#endif
#endif
#ifdef EAFNOSUPPORT
	inscode(d, ds, de, "EAFNOSUPPORT", EAFNOSUPPORT, "Address family not supported by protocol");
#else
#ifdef WSAEAFNOSUPPORT
	inscode(d, ds, de, "EAFNOSUPPORT", WSAEAFNOSUPPORT, "Address family not supported by protocol");
#endif
#endif
#ifdef EBADR
	inscode(d, ds, de, "EBADR", EBADR, "Invalid request descriptor");
#endif
#ifdef EHOSTDOWN
	inscode(d, ds, de, "EHOSTDOWN", EHOSTDOWN, "Host is down");
#else
#ifdef WSAEHOSTDOWN
	inscode(d, ds, de, "EHOSTDOWN", WSAEHOSTDOWN, "Host is down");
#endif
#endif
#ifdef EPFNOSUPPORT
	inscode(d, ds, de, "EPFNOSUPPORT", EPFNOSUPPORT, "Protocol family not supported");
#else
#ifdef WSAEPFNOSUPPORT
	inscode(d, ds, de, "EPFNOSUPPORT", WSAEPFNOSUPPORT, "Protocol family not supported");
#endif
#endif
#ifdef ENOPROTOOPT
	inscode(d, ds, de, "ENOPROTOOPT", ENOPROTOOPT, "Protocol not available");
#else
#ifdef WSAENOPROTOOPT
	inscode(d, ds, de, "ENOPROTOOPT", WSAENOPROTOOPT, "Protocol not available");
#endif
#endif
#ifdef EBUSY
	inscode(d, ds, de, "EBUSY", EBUSY, "Device or resource busy");
#endif
#ifdef EWOULDBLOCK
	inscode(d, ds, de, "EWOULDBLOCK", EWOULDBLOCK, "Operation would block");
#else
#ifdef WSAEWOULDBLOCK
	inscode(d, ds, de, "EWOULDBLOCK", WSAEWOULDBLOCK, "Operation would block");
#endif
#endif
#ifdef EBADFD
	inscode(d, ds, de, "EBADFD", EBADFD, "File descriptor in bad state");
#endif
#ifdef EDOTDOT
	inscode(d, ds, de, "EDOTDOT", EDOTDOT, "RFS specific error");
#endif
#ifdef EISCONN
	inscode(d, ds, de, "EISCONN", EISCONN, "Transport endpoint is already connected");
#else
#ifdef WSAEISCONN
	inscode(d, ds, de, "EISCONN", WSAEISCONN, "Transport endpoint is already connected");
#endif
#endif
#ifdef ENOANO
	inscode(d, ds, de, "ENOANO", ENOANO, "No anode");
#endif
#ifdef ESHUTDOWN
	inscode(d, ds, de, "ESHUTDOWN", ESHUTDOWN, "Cannot send after transport endpoint shutdown");
#else
#ifdef WSAESHUTDOWN
	inscode(d, ds, de, "ESHUTDOWN", WSAESHUTDOWN, "Cannot send after transport endpoint shutdown");
#endif
#endif
#ifdef ECHRNG
	inscode(d, ds, de, "ECHRNG", ECHRNG, "Channel number out of range");
#endif
#ifdef ELIBBAD
	inscode(d, ds, de, "ELIBBAD", ELIBBAD, "Accessing a corrupted shared library");
#endif
#ifdef ENONET
	inscode(d, ds, de, "ENONET", ENONET, "Machine is not on the network");
#endif
#ifdef EBADE
	inscode(d, ds, de, "EBADE", EBADE, "Invalid exchange");
#endif
#ifdef EBADF
	inscode(d, ds, de, "EBADF", EBADF, "Bad file number");
#else
#ifdef WSAEBADF
	inscode(d, ds, de, "EBADF", WSAEBADF, "Bad file number");
#endif
#endif
#ifdef EMULTIHOP
	inscode(d, ds, de, "EMULTIHOP", EMULTIHOP, "Multihop attempted");
#endif
#ifdef EIO
	inscode(d, ds, de, "EIO", EIO, "I/O error");
#endif
#ifdef EUNATCH
	inscode(d, ds, de, "EUNATCH", EUNATCH, "Protocol driver not attached");
#endif
#ifdef EPROTOTYPE
	inscode(d, ds, de, "EPROTOTYPE", EPROTOTYPE, "Protocol wrong type for socket");
#else
#ifdef WSAEPROTOTYPE
	inscode(d, ds, de, "EPROTOTYPE", WSAEPROTOTYPE, "Protocol wrong type for socket");
#endif
#endif
#ifdef ENOSPC
	inscode(d, ds, de, "ENOSPC", ENOSPC, "No space left on device");
#endif
#ifdef ENOEXEC
	inscode(d, ds, de, "ENOEXEC", ENOEXEC, "Exec format error");
#endif
#ifdef EALREADY
	inscode(d, ds, de, "EALREADY", EALREADY, "Operation already in progress");
#else
#ifdef WSAEALREADY
	inscode(d, ds, de, "EALREADY", WSAEALREADY, "Operation already in progress");
#endif
#endif
#ifdef ENETDOWN
	inscode(d, ds, de, "ENETDOWN", ENETDOWN, "Network is down");
#else
#ifdef WSAENETDOWN
	inscode(d, ds, de, "ENETDOWN", WSAENETDOWN, "Network is down");
#endif
#endif
#ifdef ENOTNAM
	inscode(d, ds, de, "ENOTNAM", ENOTNAM, "Not a XENIX named type file");
#endif
#ifdef EACCES
	inscode(d, ds, de, "EACCES", EACCES, "Permission denied");
#else
#ifdef WSAEACCES
	inscode(d, ds, de, "EACCES", WSAEACCES, "Permission denied");
#endif
#endif
#ifdef ELNRNG
	inscode(d, ds, de, "ELNRNG", ELNRNG, "Link number out of range");
#endif
#ifdef EILSEQ
	inscode(d, ds, de, "EILSEQ", EILSEQ, "Illegal byte sequence");
#endif
#ifdef ENOTDIR
	inscode(d, ds, de, "ENOTDIR", ENOTDIR, "Not a directory");
#endif
#ifdef ENOTUNIQ
	inscode(d, ds, de, "ENOTUNIQ", ENOTUNIQ, "Name not unique on network");
#endif
#ifdef EPERM
	inscode(d, ds, de, "EPERM", EPERM, "Operation not permitted");
#endif
#ifdef EDOM
	inscode(d, ds, de, "EDOM", EDOM, "Math argument out of domain of func");
#endif
#ifdef EXFULL
	inscode(d, ds, de, "EXFULL", EXFULL, "Exchange full");
#endif
#ifdef ECONNREFUSED
	inscode(d, ds, de, "ECONNREFUSED", ECONNREFUSED, "Connection refused");
#else
#ifdef WSAECONNREFUSED
	inscode(d, ds, de, "ECONNREFUSED", WSAECONNREFUSED, "Connection refused");
#endif
#endif
#ifdef EISDIR
	inscode(d, ds, de, "EISDIR", EISDIR, "Is a directory");
#endif
#ifdef EPROTONOSUPPORT
	inscode(d, ds, de, "EPROTONOSUPPORT", EPROTONOSUPPORT, "Protocol not supported");
#else
#ifdef WSAEPROTONOSUPPORT
	inscode(d, ds, de, "EPROTONOSUPPORT", WSAEPROTONOSUPPORT, "Protocol not supported");
#endif
#endif
#ifdef EROFS
	inscode(d, ds, de, "EROFS", EROFS, "Read-only file system");
#endif
#ifdef EADDRNOTAVAIL
	inscode(d, ds, de, "EADDRNOTAVAIL", EADDRNOTAVAIL, "Cannot assign requested address");
#else
#ifdef WSAEADDRNOTAVAIL
	inscode(d, ds, de, "EADDRNOTAVAIL", WSAEADDRNOTAVAIL, "Cannot assign requested address");
#endif
#endif
#ifdef EIDRM
	inscode(d, ds, de, "EIDRM", EIDRM, "Identifier removed");
#endif
#ifdef ECOMM
	inscode(d, ds, de, "ECOMM", ECOMM, "Communication error on send");
#endif
#ifdef ESRMNT
	inscode(d, ds, de, "ESRMNT", ESRMNT, "Srmount error");
#endif
#ifdef EREMOTEIO
	inscode(d, ds, de, "EREMOTEIO", EREMOTEIO, "Remote I/O error");
#endif
#ifdef EL3RST
	inscode(d, ds, de, "EL3RST", EL3RST, "Level 3 reset");
#endif
#ifdef EBADMSG
	inscode(d, ds, de, "EBADMSG", EBADMSG, "Not a data message");
#endif
#ifdef ENFILE
	inscode(d, ds, de, "ENFILE", ENFILE, "File table overflow");
#endif
#ifdef ELIBMAX
	inscode(d, ds, de, "ELIBMAX", ELIBMAX, "Attempting to link in too many shared libraries");