/* add a lastError message on the end of the buffer. * returns 0 on failure */ static int add_last_error(buffer_t buffer, int request_id, PyObject* args) { int message_start; int document_start; int message_length; int document_length; PyObject* key; PyObject* value; Py_ssize_t pos = 0; PyObject* one; message_start = buffer_save_space(buffer, 4); if (message_start == -1) { PyErr_NoMemory(); return 0; } if (!buffer_write_bytes(buffer, (const char*)&request_id, 4) || !buffer_write_bytes(buffer, "\x00\x00\x00\x00" /* responseTo */ "\xd4\x07\x00\x00" /* opcode */ "\x00\x00\x00\x00" /* options */ "admin.$cmd\x00" /* collection name */ "\x00\x00\x00\x00" /* skip */ "\xFF\xFF\xFF\xFF", /* limit (-1) */ 31)) { return 0; } /* save space for length */ document_start = buffer_save_space(buffer, 4); if (document_start == -1) { PyErr_NoMemory(); return 0; } /* getlasterror: 1 */ one = PyLong_FromLong(1); if (!write_pair(buffer, "getlasterror", 12, one, 0, 4, 1)) { Py_DECREF(one); return 0; } Py_DECREF(one); /* getlasterror options */ while (PyDict_Next(args, &pos, &key, &value)) { if (!decode_and_write_pair(buffer, key, value, 0, 4, 0)) { return 0; } } /* EOD */ if (!buffer_write_bytes(buffer, "\x00", 1)) { return 0; } message_length = buffer_get_position(buffer) - message_start; document_length = buffer_get_position(buffer) - document_start; memcpy(buffer_get_buffer(buffer) + message_start, &message_length, 4); memcpy(buffer_get_buffer(buffer) + document_start, &document_length, 4); return 1; }
/* add a lastError message on the end of the buffer. * returns 0 on failure */ static int add_last_error(PyObject* self, buffer_t buffer, int request_id, char* ns, int nslen, PyObject* args) { struct module_state *state = GETSTATE(self); int message_start; int document_start; int message_length; int document_length; PyObject* key; PyObject* value; Py_ssize_t pos = 0; PyObject* one; char *p = strchr(ns, '.'); /* Length of the database portion of ns. */ nslen = p ? (int)(p - ns) : nslen; message_start = buffer_save_space(buffer, 4); if (message_start == -1) { PyErr_NoMemory(); return 0; } if (!buffer_write_bytes(buffer, (const char*)&request_id, 4) || !buffer_write_bytes(buffer, "\x00\x00\x00\x00" /* responseTo */ "\xd4\x07\x00\x00" /* opcode */ "\x00\x00\x00\x00", /* options */ 12) || !buffer_write_bytes(buffer, ns, nslen) || /* database */ !buffer_write_bytes(buffer, ".$cmd\x00" /* collection name */ "\x00\x00\x00\x00" /* skip */ "\xFF\xFF\xFF\xFF", /* limit (-1) */ 14)) { return 0; } /* save space for length */ document_start = buffer_save_space(buffer, 4); if (document_start == -1) { PyErr_NoMemory(); return 0; } /* getlasterror: 1 */ if (!(one = PyLong_FromLong(1))) return 0; if (!write_pair(state->_cbson, buffer, "getlasterror", 12, one, 0, 4, 1)) { Py_DECREF(one); return 0; } Py_DECREF(one); /* getlasterror options */ while (PyDict_Next(args, &pos, &key, &value)) { if (!decode_and_write_pair(state->_cbson, buffer, key, value, 0, 4, 0)) { return 0; } } /* EOD */ if (!buffer_write_bytes(buffer, "\x00", 1)) { return 0; } message_length = buffer_get_position(buffer) - message_start; document_length = buffer_get_position(buffer) - document_start; memcpy(buffer_get_buffer(buffer) + message_start, &message_length, 4); memcpy(buffer_get_buffer(buffer) + document_start, &document_length, 4); return 1; }