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* python/python-internal.h (PyGILState_Ensure): New define.

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(PyGILState_Release): Likewise.
	(PyEval_InitThreads): Likewise.
	(PyThreadState_Swap): Likewise.
	(PyEval_InitThreads): Likewise.
	* python/python.c (_initialize_python): Initialize threads.
	Release GIL.
	(eval_python_from_control_command): Acquire GIL.
	(python_command): Likewise.
	* python/python-internal.h (make_cleanup_py_restore_gil):
	Declare.
	* python/python-utils.c (py_gil_restore): New function.
	(make_cleanup_py_restore_gil): Likewise.
This commit is contained in:
Tom Tromey
2008-11-21 14:59:56 +00:00
parent 3c9ab205d3
commit ca30a76297
4 changed files with 67 additions and 2 deletions
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24
gdb/python/python.c
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@ -103,10 +103,15 @@ void
eval_python_from_control_command (struct command_line *cmd)
{
char *script;
struct cleanup *cleanup;
PyGILState_STATE state;
if (cmd->body_count != 1)
error (_("Invalid \"python\" block structure."));
state = PyGILState_Ensure ();
cleanup = make_cleanup_py_restore_gil (&state);
script = compute_python_string (cmd->body_list[0]);
PyRun_SimpleString (script);
xfree (script);
@ -115,6 +120,8 @@ eval_python_from_control_command (struct command_line *cmd)
gdbpy_print_stack ();
error (_("error while executing Python code"));
}
do_cleanups (cleanup);
}
/* Implementation of the gdb "python" command. */
@ -122,6 +129,12 @@ eval_python_from_control_command (struct command_line *cmd)
static void
python_command (char *arg, int from_tty)
{
struct cleanup *cleanup;
PyGILState_STATE state;
state = PyGILState_Ensure ();
cleanup = make_cleanup_py_restore_gil (&state);
while (arg && *arg && isspace (*arg))
++arg;
if (arg && *arg)
@ -136,10 +149,11 @@ python_command (char *arg, int from_tty)
else
{
struct command_line *l = get_command_line (python_control, "");
struct cleanup *cleanups = make_cleanup_free_command_lines (&l);
make_cleanup_free_command_lines (&l);
execute_control_command_untraced (l);
do_cleanups (cleanups);
}
do_cleanups (cleanup);
}
@ -392,6 +406,7 @@ Enables or disables printing of Python stack traces."),
#ifdef HAVE_PYTHON
Py_Initialize ();
PyEval_InitThreads ();
gdb_module = Py_InitModule ("gdb", GdbMethods);
@ -429,5 +444,10 @@ class GdbOutputFile:\n\
sys.stderr = GdbOutputFile()\n\
sys.stdout = GdbOutputFile()\n\
");
/* Release the GIL while gdb runs. */
PyThreadState_Swap (NULL);
PyEval_ReleaseLock ();
#endif /* HAVE_PYTHON */
}