133 lines
5.0 KiB
C
133 lines
5.0 KiB
C
//-----------------------------------------------------------------------------
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// Error.c
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// Error handling.
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//-----------------------------------------------------------------------------
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//-----------------------------------------------------------------------------
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// structure for the Python type
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//-----------------------------------------------------------------------------
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typedef struct {
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PyObject_HEAD
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sb4 errorNumber;
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char errorText[1024];
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const char *context;
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} udt_Error;
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//-----------------------------------------------------------------------------
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// forward declarations
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//-----------------------------------------------------------------------------
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static void Error_Free(udt_Error*);
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static PyObject *Error_Str(udt_Error*);
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//-----------------------------------------------------------------------------
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// declaration of members
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//-----------------------------------------------------------------------------
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static PyMemberDef g_ErrorMembers[] = {
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{ "code", T_INT, offsetof(udt_Error, errorNumber), READONLY },
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{ "message", T_STRING_INPLACE, offsetof(udt_Error, errorText), READONLY },
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{ "context", T_STRING, offsetof(udt_Error, context), READONLY },
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{ NULL }
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};
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//-----------------------------------------------------------------------------
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// declaration of Python type
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//-----------------------------------------------------------------------------
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static PyTypeObject g_ErrorType = {
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PyObject_HEAD_INIT(NULL)
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0, // ob_size
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"cx_Oracle._Error", // tp_name
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sizeof(udt_Error), // tp_basicsize
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0, // tp_itemsize
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(destructor) Error_Free, // tp_dealloc
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0, // tp_print
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0, // tp_getattr
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0, // tp_setattr
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0, // tp_compare
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0, // tp_repr
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0, // tp_as_number
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0, // tp_as_sequence
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0, // tp_as_mapping
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0, // tp_hash
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0, // tp_call
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(reprfunc) Error_Str, // tp_str
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0, // tp_getattro
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0, // tp_setattro
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0, // tp_as_buffer
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Py_TPFLAGS_DEFAULT, // tp_flags
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0, // tp_doc
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0, // tp_traverse
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0, // tp_clear
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0, // tp_richcompare
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0, // tp_weaklistoffset
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0, // tp_iter
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0, // tp_iternext
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0, // tp_methods
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g_ErrorMembers, // tp_members
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0 // tp_getset
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};
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//-----------------------------------------------------------------------------
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// Error_New()
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// Create a new error object.
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//-----------------------------------------------------------------------------
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static udt_Error *Error_New(
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udt_Environment *environment, // environment object
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const char *context, // context in which error occurred
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int retrieveError) // retrieve error from OCI?
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{
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udt_Error *error;
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ub4 handleType;
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dvoid *handle;
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sword status;
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error = PyObject_NEW(udt_Error, &g_ErrorType);
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if (!error)
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return NULL;
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error->context = context;
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if (retrieveError) {
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if (environment->errorHandle) {
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handle = environment->errorHandle;
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handleType = OCI_HTYPE_ERROR;
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} else {
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handle = environment->handle;
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handleType = OCI_HTYPE_ENV;
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}
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status = OCIErrorGet(handle, 1, 0, &error->errorNumber,
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(unsigned char*) error->errorText, sizeof(error->errorText),
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handleType);
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if (status != OCI_SUCCESS) {
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Py_DECREF(error);
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PyErr_SetString(g_InternalErrorException, "No Oracle error?");
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return NULL;
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}
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}
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return error;
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}
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//-----------------------------------------------------------------------------
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// Error_Free()
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// Deallocate the environment, disconnecting from the database if necessary.
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//-----------------------------------------------------------------------------
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static void Error_Free(
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udt_Error *self) // error object
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{
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self->ob_type->tp_free((PyObject*) self);
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}
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//-----------------------------------------------------------------------------
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// Error_Str()
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// Return a string representation of the error variable.
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//-----------------------------------------------------------------------------
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static PyObject *Error_Str(
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udt_Error *self) // variable to return the string for
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{
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return PyString_FromString(self->errorText);
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}
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