Rename python function thread_from_thread_handle to thread_from_handle

This renaming was done to stay consistent with the naming of the new
gdb.InferiorThread.handle method.  I had initially named it "thread_handle"
but Tom Tromey suggested just "handle".

The old name (thread_from_thread_handle) still works, but is marked as
deprecated in comments in the code as well as in the documentation.

I have some code which uses these functions.  I very much like the
brevity of the new names.

gdb/doc/ChangeLog:

	* python.texi (Inferiors In Python): Rename
	Inferior.thread_from_thread_handle to Inferior.thread_from_handle.
	Add note about the former being deprecated.

gdb/ChangeLog:

	* python/py-inferior.c (infpy_thread_from_thread_handle):
	Adjust comments to reflect renaming of thread_from_thread_handle
	to thread_from_handle.  Adjust keywords.  Fix type error message.
	(inferior_object_methods): Add thread_from_handle.  Retain
	thread_from_thread_handle, but mark it as deprecated.

testsuite/ChangeLog:

	* gdb.python/py-thrhandle.exp: Adjust tests to call
	thread_from_handle instead of thread_from_thread_handle.

6 files changed, 50 insertions, 20 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 65be341..e1d20fd 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,13 @@
 2019-04-08  Kevin Buettner  <kevinb@redhat.com>
 
+	* python/py-inferior.c (infpy_thread_from_thread_handle):
+	Adjust comments to reflect renaming of thread_from_thread_handle
+	to thread_from_handle.  Adjust keywords.  Fix type error message.
+	(inferior_object_methods): Add thread_from_handle.  Retain
+	thread_from_thread_handle, but mark it as deprecated.
+
+2019-04-08  Kevin Buettner  <kevinb@redhat.com>
+
 	* gdbthread.h (find_thread_by_handle): Revise declaration.
 	* thread.c (find_thread_by_handle): Likewise.  Adjust
 	implementation too.
diff --git a/gdb/doc/ChangeLog b/gdb/doc/ChangeLog
index a3564ab..27e65ea 100644
--- a/gdb/doc/ChangeLog
+++ b/gdb/doc/ChangeLog
@@ -1,5 +1,11 @@
 2019-04-08  Kevin Buettner  <kevinb@redhat.com>
 
+	* python.texi (Inferiors In Python): Rename
+	Inferior.thread_from_thread_handle to Inferior.thread_from_handle.
+	Add note about the former being deprecated.
+
+2019-04-08  Kevin Buettner  <kevinb@redhat.com>
+
 	* python.texi (Threads In Python): Add description for method
 	InferiorThread.handle.
 
diff --git a/gdb/doc/python.texi b/gdb/doc/python.texi
index 6a967ec..36947de 100644
--- a/gdb/doc/python.texi
+++ b/gdb/doc/python.texi
@@ -3000,11 +3000,16 @@ containing the address where the pattern was found, or @code{None} if
 the pattern could not be found.
 @end defun
 
+@findex Inferior.thread_from_handle
 @findex Inferior.thread_from_thread_handle
-@defun Inferior.thread_from_thread_handle (thread_handle)
-Return the thread object corresponding to @var{thread_handle}, a thread
+@defun Inferior.thread_from_handle (handle)
+Return the thread object corresponding to @var{handle}, a thread
 library specific data structure such as @code{pthread_t} for pthreads
 library implementations.
+
+The function @code{Inferior.thread_from_thread_handle} provides
+the same functionality, but use of @code{Inferior.thread_from_thread_handle}
+is deprecated.
 @end defun
 
 @node Events In Python
diff --git a/gdb/python/py-inferior.c b/gdb/python/py-inferior.c
index 9109874..984cebb 100644
--- a/gdb/python/py-inferior.c
+++ b/gdb/python/py-inferior.c
@@ -755,7 +755,7 @@ infpy_is_valid (PyObject *self, PyObject *args)
   Py_RETURN_TRUE;
 }
 
-/* Implementation of gdb.Inferior.thread_from_thread_handle (self, handle)
+/* Implementation of gdb.Inferior.thread_from_handle (self, handle)
                         ->  gdb.InferiorThread.  */
 
 static PyObject *
@@ -763,7 +763,7 @@ infpy_thread_from_thread_handle (PyObject *self, PyObject *args, PyObject *kw)
 {
   PyObject *handle_obj;
   inferior_object *inf_obj = (inferior_object *) self;
-  static const char *keywords[] = { "thread_handle", NULL };
+  static const char *keywords[] = { "handle", NULL };
 
   INFPY_REQUIRE_VALID (inf_obj);
 
@@ -791,7 +791,7 @@ infpy_thread_from_thread_handle (PyObject *self, PyObject *args, PyObject *kw)
   else
     {
       PyErr_SetString (PyExc_TypeError,
-		       _("Argument 'handle_obj' must be a thread handle object."));
+		       _("Argument 'handle' must be a thread handle object."));
 
       return NULL;
     }
@@ -956,9 +956,15 @@ Write the given buffer object to the inferior's memory." },
     METH_VARARGS | METH_KEYWORDS,
     "search_memory (address, length, pattern) -> long\n\
 Return a long with the address of a match, or None." },
+  /* thread_from_thread_handle is deprecated.  */
   { "thread_from_thread_handle", (PyCFunction) infpy_thread_from_thread_handle,
     METH_VARARGS | METH_KEYWORDS,
     "thread_from_thread_handle (handle) -> gdb.InferiorThread.\n\
+Return thread object corresponding to thread handle.\n\
+This method is deprecated - use thread_from_handle instead." },
+  { "thread_from_handle", (PyCFunction) infpy_thread_from_thread_handle,
+    METH_VARARGS | METH_KEYWORDS,
+    "thread_from_handle (handle) -> gdb.InferiorThread.\n\
 Return thread object corresponding to thread handle." },
   { "architecture", (PyCFunction) infpy_architecture, METH_NOARGS,
     "architecture () -> gdb.Architecture\n\
diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 8c5739f..5f1ce3c 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,5 +1,10 @@
 2019-04-08  Kevin Buettner  <kevinb@redhat.com>
 
+	* gdb.python/py-thrhandle.exp: Adjust tests to call
+	thread_from_handle instead of thread_from_thread_handle.
+
+2019-04-08  Kevin Buettner  <kevinb@redhat.com>
+
 	* gdb.python/py-thrhandle.exp: Add tests for
 	gdb.InferiorThread.handle.
 
diff --git a/gdb/testsuite/gdb.python/py-thrhandle.exp b/gdb/testsuite/gdb.python/py-thrhandle.exp
index 57b97fa..19c690b 100644
--- a/gdb/testsuite/gdb.python/py-thrhandle.exp
+++ b/gdb/testsuite/gdb.python/py-thrhandle.exp
@@ -16,7 +16,7 @@
 # Please email any bugs, comments, and/or additions to this file to:
 # bug-gdb@gnu.org
 
-# This file verifies that methods Inferior.thread_from_thread_handle
+# This file verifies that methods Inferior.thread_from_handle
 # and InferiorThread.handle work as expected.
 
 load_lib gdb-python.exp
@@ -67,44 +67,44 @@ gdb_test "info threads"  \
 	{.*[\r\n]+\* +([0-9]+) +Thread[^\r\n]* do_something \(n=\1\) at.*}
 
 # Check for expected results when passing a valid thread handle to
-# thread_from_thread_handle().
+# thread_from_handle().
 
-gdb_test "python print(gdb.selected_inferior().thread_from_thread_handle(gdb.parse_and_eval('thrs\[0\]')).num)" \
+gdb_test "python print(gdb.selected_inferior().thread_from_handle(gdb.parse_and_eval('thrs\[0\]')).num)" \
 	"1" "print thread id for thrs\[0\]"
 
-gdb_test "python print(gdb.selected_inferior().thread_from_thread_handle(gdb.parse_and_eval('thrs\[1\]')).num)" \
+gdb_test "python print(gdb.selected_inferior().thread_from_handle(gdb.parse_and_eval('thrs\[1\]')).num)" \
 	"2" "print thread id for thrs\[1\]"
 
-gdb_test "python print(gdb.selected_inferior().thread_from_thread_handle(gdb.parse_and_eval('thrs\[2\]')).num)" \
+gdb_test "python print(gdb.selected_inferior().thread_from_handle(gdb.parse_and_eval('thrs\[2\]')).num)" \
 	"3" "print thread id for thrs\[2\]"
 
 # Objects which are of the correct size, but which are bogus thread
 # handles should return None.  For the first test (using thrs[3]), we
 # use 0.  For the second (thrs[4]), we use an unlikely bit pattern.
 
-gdb_test "python print(gdb.selected_inferior().thread_from_thread_handle(gdb.parse_and_eval('thrs\[3\]')))" \
+gdb_test "python print(gdb.selected_inferior().thread_from_handle(gdb.parse_and_eval('thrs\[3\]')))" \
 	"None" "print thread for bogus handle thrs\[3\]"
 
-gdb_test "python print(gdb.selected_inferior().thread_from_thread_handle(gdb.parse_and_eval('thrs\[4\]')))" \
+gdb_test "python print(gdb.selected_inferior().thread_from_handle(gdb.parse_and_eval('thrs\[4\]')))" \
 	"None" "print thread for bogus handle thrs\[4\]"
 
 # We should see an exception when passing an object of the wrong type.
 
-gdb_test "python print(gdb.selected_inferior().thread_from_thread_handle(gdb.lookup_symbol('main')))" \
-         ".*TypeError: Argument 'handle_obj' must be a thread handle object.*" \
-	 "TypeError when passing a symbol object to thread_from_thread_handle"
+gdb_test "python print(gdb.selected_inferior().thread_from_handle(gdb.lookup_symbol('main')))" \
+         ".*TypeError: Argument 'handle' must be a thread handle object.*" \
+	 "TypeError when passing a symbol object to thread_from_handle"
 
 # We should see an exception when passing too large of an object.
 
-gdb_test "python print(gdb.selected_inferior().thread_from_thread_handle(gdb.parse_and_eval('thrs')))" \
+gdb_test "python print(gdb.selected_inferior().thread_from_handle(gdb.parse_and_eval('thrs')))" \
          ".*Thread handle size mismatch.*" \
-	 "Pass overly large object to thread_from_thread_handle"
+	 "Pass overly large object to thread_from_handle"
 
 # We should see an exception when passing too small of an object.
 
-gdb_test "python print(gdb.selected_inferior().thread_from_thread_handle(gdb.parse_and_eval('\"S\"')))" \
+gdb_test "python print(gdb.selected_inferior().thread_from_handle(gdb.parse_and_eval('\"S\"')))" \
          ".*Thread handle size mismatch.*" \
-	 "Pass too small of an object to thread_from_thread_handle"
+	 "Pass too small of an object to thread_from_handle"
 
 # Test the thread_handle method
 
@@ -121,7 +121,7 @@ foreach thrN {0 1 2} {
 	    1
 
 	gdb_py_test_silent_cmd \
-	    "python hand_bytes = inf.thread_from_thread_handle(hand).handle()" \
+	    "python hand_bytes = inf.thread_from_handle(hand).handle()" \
 	    "fetch thread handle from thread" \
 	    1