struct btp_thread *
btp_thread_dup(struct btp_thread *thread, bool siblings)
{
struct btp_thread *result = btp_thread_new();
memcpy(result, thread, sizeof(struct btp_thread));
/* Handle siblings. */
if (siblings)
{
if (result->next)
result->next = btp_thread_dup(result->next, true);
}
else
result->next = NULL; /* Do not copy that. */
result->frames = btp_frame_dup(result->frames, true);
return result;
}
/* constructor */
PyObject *p_btp_thread_new(PyTypeObject *object, PyObject *args, PyObject *kwds)
{
ThreadObject *to = (ThreadObject *)PyObject_New(ThreadObject, &ThreadTypeObject);
if (!to)
return PyErr_NoMemory();
const char *str = NULL;
int only_funs = 0;
if (!PyArg_ParseTuple(args, "|si", &str, &only_funs))
return NULL;
if (str)
{
if (!only_funs)
{
struct btp_location location;
btp_location_init(&location);
to->thread = btp_thread_parse(&str, &location);
if (!to->thread)
{
PyErr_SetString(PyExc_ValueError, location.message);
return NULL;
}
}
else
{
to->thread = btp_thread_parse_funs(str);
}
to->frames = frame_linked_list_to_python_list(to->thread);
if (!to->frames)
return NULL;
}
else
{
to->frames = PyList_New(0);
to->thread = btp_thread_new();
}
return (PyObject *)to;
}
struct btp_thread *
btp_thread_parse(char **input,
struct btp_location *location)
{
char *local_input = *input;
/* Read the Thread keyword, which is mandatory. */
int chars = btp_skip_string(&local_input, "Thread");
location->column += chars;
if (0 == chars)
{
location->message = "\"Thread\" header expected";
return NULL;
}
/* Skip spaces, at least one space is mandatory. */
int spaces = btp_skip_char_sequence(&local_input, ' ');
location->column += spaces;
if (0 == spaces)
{
location->message = "Space expected after the \"Thread\" keyword.";
return NULL;
}
/* Read thread number. */
struct btp_thread *imthread = btp_thread_new();
int digits = btp_parse_unsigned_integer(&local_input, &imthread->number);
location->column += digits;
if (0 == digits)
{
location->message = "Thread number expected.";
btp_thread_free(imthread);
return NULL;
}
/* Skip spaces after the thread number and before parentheses. */
spaces = btp_skip_char_sequence(&local_input, ' ');
location->column += spaces;
if (0 == spaces)
{
location->message = "Space expected after the thread number.";
btp_thread_free(imthread);
return NULL;
}
/* Read the LWP section in parentheses, optional. */
location->column += btp_thread_skip_lwp(&local_input);
/* Read the Thread keyword in parentheses, optional. */
chars = btp_skip_string(&local_input, "(Thread ");
location->column += chars;
if (0 != chars)
{
/* Read the thread identification number. It can be either in
* decimal or hexadecimal form.
* Examples:
* "Thread 10 (Thread 2476):"
* "Thread 8 (Thread 0xb07fdb70 (LWP 6357)):"
*/
digits = btp_skip_hexadecimal_number(&local_input);
if (0 == digits)
digits = btp_skip_unsigned_integer(&local_input);
location->column += digits;
if (0 == digits)
{
location->message = "The thread identification number expected.";
btp_thread_free(imthread);
return NULL;
}
/* Handle the optional " (LWP [0-9]+)" section. */
location->column += btp_skip_char_sequence(&local_input, ' ');
location->column += btp_thread_skip_lwp(&local_input);
/* Read the end of the parenthesis. */
if (!btp_skip_char(&local_input, ')'))
{
location->message = "Closing parenthesis for Thread expected.";
btp_thread_free(imthread);
return NULL;
}
}
/* Read the end of the header line. */
chars = btp_skip_string(&local_input, ":\n");
if (0 == chars)
{
location->message = "Expected a colon followed by a newline ':\\n'.";
btp_thread_free(imthread);
return NULL;
}
/* Add the newline from the last btp_skip_string. */
btp_location_add(location, 2, 0);
/* Read the frames. */
struct btp_frame *frame, *prevframe = NULL;
struct btp_location frame_location;
btp_location_init(&frame_location);
while ((frame = btp_frame_parse(&local_input, &frame_location)))
{
if (prevframe)
{
btp_frame_add_sibling(prevframe, frame);
prevframe = frame;
}
else
imthread->frames = prevframe = frame;
btp_location_add(location,
frame_location.line,
frame_location.column);
}
if (!imthread->frames)
{
location->message = frame_location.message;
btp_thread_free(imthread);
return NULL;
}
*input = local_input;
return imthread;
}
