sort source files into these directories according to which part of the WM
2007-12-19 Havoc Pennington <hp@redhat.com> * src/ui, src/core, src/include: sort source files into these directories according to which part of the WM they are supposed to be in. In an eventual plan, we should also create src/compositor/render, src/compositor/fallback and move some of the compositor stuff into that. * autogen.sh: require a newer automake, so we don't have to use a recursive build * src/ui/tabpopup.c: put in a hack to make the build temporarily work, want to commit the large rearrangement before fixing this not to include workspace.h or frame.h * src/core/iconcache.c (meta_read_icons): temporarily break this to get the build to work, want to commit the large rearrangement before fixing this file not to include theme.h svn path=/trunk/; revision=3491
This commit is contained in:
Havoc Pennington
committed by
Havoc Pennington
Havoc Pennington
parent
3880951458
commit
72b08c82b1
680
src/core/async-getprop.c
Normal file
680
src/core/async-getprop.c
Normal file
@@ -0,0 +1,680 @@
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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
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/* Asynchronous X property getting hack */
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/*
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* Copyright (C) 2002 Havoc Pennington
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* Copyright (C) 1986, 1998 The Open Group
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*
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* Permission to use, copy, modify, distribute, and sell this software
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* and its documentation for any purpose is hereby granted without
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* fee, provided that the above copyright notice appear in all copies
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* and that both that copyright notice and this permission notice
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* appear in supporting documentation.
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
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* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* Except as contained in this notice, the name of The Open Group shall not be
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* used in advertising or otherwise to promote the sale, use or other dealings
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* in this Software without prior written authorization from The Open Group.
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*/
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#include <assert.h>
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#undef DEBUG_SPEW
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#ifdef DEBUG_SPEW
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#include <stdio.h>
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#endif
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#include "async-getprop.h"
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#define NEED_REPLIES
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#include <X11/Xlibint.h>
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#ifndef NULL
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#define NULL ((void*)0)
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#endif
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typedef struct _ListNode ListNode;
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typedef struct _AgPerDisplayData AgPerDisplayData;
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struct _ListNode
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{
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ListNode *next;
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};
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struct _AgGetPropertyTask
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{
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ListNode node;
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AgPerDisplayData *dd;
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Window window;
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Atom property;
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unsigned long request_seq;
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int error;
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Atom actual_type;
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int actual_format;
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unsigned long n_items;
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unsigned long bytes_after;
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char *data;
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Bool have_reply;
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};
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struct _AgPerDisplayData
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{
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ListNode node;
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_XAsyncHandler async;
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Display *display;
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ListNode *pending_tasks;
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ListNode *pending_tasks_tail;
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ListNode *completed_tasks;
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ListNode *completed_tasks_tail;
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int n_tasks_pending;
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int n_tasks_completed;
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};
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static ListNode *display_datas = NULL;
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static ListNode *display_datas_tail = NULL;
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static void
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append_to_list (ListNode **head,
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ListNode **tail,
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ListNode *task)
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{
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task->next = NULL;
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if (*tail == NULL)
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{
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assert (*head == NULL);
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*head = task;
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*tail = task;
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}
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else
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{
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(*tail)->next = task;
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*tail = task;
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}
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}
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static void
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remove_from_list (ListNode **head,
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ListNode **tail,
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ListNode *task)
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{
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ListNode *prev;
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ListNode *node;
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prev = NULL;
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node = *head;
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while (node != NULL)
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{
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if (node == task)
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{
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if (prev)
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prev->next = node->next;
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else
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*head = node->next;
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if (node == *tail)
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*tail = prev;
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break;
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}
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prev = node;
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node = node->next;
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}
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/* can't remove what's not there */
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assert (node != NULL);
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node->next = NULL;
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}
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static void
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move_to_completed (AgPerDisplayData *dd,
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AgGetPropertyTask *task)
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{
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remove_from_list (&dd->pending_tasks,
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&dd->pending_tasks_tail,
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&task->node);
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append_to_list (&dd->completed_tasks,
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&dd->completed_tasks_tail,
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&task->node);
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dd->n_tasks_pending -= 1;
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dd->n_tasks_completed += 1;
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}
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static AgGetPropertyTask*
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find_pending_by_request_sequence (AgPerDisplayData *dd,
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unsigned long request_seq)
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{
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ListNode *node;
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/* if the sequence is after our last pending task, we
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* aren't going to find a match
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*/
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{
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AgGetPropertyTask *task = (AgGetPropertyTask*) dd->pending_tasks_tail;
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if (task != NULL)
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{
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if (task->request_seq < request_seq)
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return NULL;
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else if (task->request_seq == request_seq)
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return task; /* why not check this */
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}
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}
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/* Generally we should get replies in the order we sent
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* requests, so we should usually be using the task
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* at the head of the list, if we use any task at all.
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* I'm not sure this is 100% guaranteed, if it is,
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* it would be a big speedup.
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*/
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node = dd->pending_tasks;
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while (node != NULL)
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{
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AgGetPropertyTask *task = (AgGetPropertyTask*) node;
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if (task->request_seq == request_seq)
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return task;
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node = node->next;
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}
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return NULL;
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}
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static Bool
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async_get_property_handler (Display *dpy,
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xReply *rep,
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char *buf,
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int len,
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XPointer data)
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{
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xGetPropertyReply replbuf;
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xGetPropertyReply *reply;
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AgGetPropertyTask *task;
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AgPerDisplayData *dd;
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int bytes_read;
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dd = (AgPerDisplayData*) data;
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#if 0
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printf ("%s: seeing request seq %ld buflen %d\n", __FUNCTION__,
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dpy->last_request_read, len);
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#endif
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task = find_pending_by_request_sequence (dd, dpy->last_request_read);
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if (task == NULL)
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return False;
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assert (dpy->last_request_read == task->request_seq);
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task->have_reply = True;
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move_to_completed (dd, task);
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/* read bytes so far */
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bytes_read = SIZEOF (xReply);
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if (rep->generic.type == X_Error)
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{
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xError errbuf;
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task->error = rep->error.errorCode;
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#ifdef DEBUG_SPEW
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printf ("%s: error code = %d (ignoring error, eating %d bytes, generic.length = %ld)\n",
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__FUNCTION__, task->error, (SIZEOF (xError) - bytes_read),
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rep->generic.length);
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#endif
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/* We return True (meaning we consumed the reply)
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* because otherwise it would invoke the X error handler,
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* and an async API is useless if you have to synchronously
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* trap X errors. Also GetProperty can always fail, pretty
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* much, so trapping errors is always what you want.
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*
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* We have to eat all the error reply data here.
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* (kind of a charade as we know sizeof(xError) == sizeof(xReply))
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*
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* Passing discard = True seems to break things; I don't understand
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* why, because there should be no extra data in an error reply,
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* right?
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*/
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_XGetAsyncReply (dpy, (char *)&errbuf, rep, buf, len,
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(SIZEOF (xError) - bytes_read) >> 2, /* in 32-bit words */
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False); /* really seems like it should be True */
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return True;
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}
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#ifdef DEBUG_SPEW
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printf ("%s: already read %d bytes reading %d more for total of %d; generic.length = %ld\n",
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__FUNCTION__, bytes_read, (SIZEOF (xGetPropertyReply) - bytes_read) >> 2,
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SIZEOF (xGetPropertyReply), rep->generic.length);
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#endif
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/* (kind of a silly as we know sizeof(xGetPropertyReply) == sizeof(xReply)) */
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reply = (xGetPropertyReply *)
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_XGetAsyncReply (dpy, (char *)&replbuf, rep, buf, len,
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(SIZEOF (xGetPropertyReply) - bytes_read) >> 2, /* in 32-bit words */
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False); /* False means expecting more data to follow,
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* don't eat the rest of the reply
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*/
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bytes_read = SIZEOF (xGetPropertyReply);
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#ifdef DEBUG_SPEW
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printf ("%s: have reply propertyType = %ld format = %d n_items = %ld\n",
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__FUNCTION__, reply->propertyType, reply->format, reply->nItems);
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#endif
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assert (task->data == NULL);
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/* This is all copied from XGetWindowProperty(). Not sure we should
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* LockDisplay(). Not sure I'm passing the right args to
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* XGetAsyncData(). Not sure about a lot of things.
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*/
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/* LockDisplay (dpy); */
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if (reply->propertyType != None)
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{
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long nbytes, netbytes;
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/* this alignment macro from orbit2 */
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#define ALIGN_VALUE(this, boundary) \
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(( ((unsigned long)(this)) + (((unsigned long)(boundary)) -1)) & (~(((unsigned long)(boundary))-1)))
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switch (reply->format)
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{
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/*
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* One extra byte is malloced than is needed to contain the property
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* data, but this last byte is null terminated and convenient for
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* returning string properties, so the client doesn't then have to
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* recopy the string to make it null terminated.
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*/
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case 8:
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nbytes = reply->nItems;
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/* there's padding to word boundary */
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netbytes = ALIGN_VALUE (nbytes, 4);
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if (nbytes + 1 > 0 &&
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(task->data = (char *) Xmalloc ((unsigned)nbytes + 1)))
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{
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#ifdef DEBUG_SPEW
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printf ("%s: already read %d bytes using %ld, more eating %ld more\n",
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__FUNCTION__, bytes_read, nbytes, netbytes);
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#endif
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/* _XReadPad (dpy, (char *) task->data, netbytes); */
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_XGetAsyncData (dpy, task->data, buf, len,
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bytes_read, nbytes,
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netbytes);
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}
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break;
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case 16:
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nbytes = reply->nItems * sizeof (short);
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netbytes = reply->nItems << 1;
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netbytes = ALIGN_VALUE (netbytes, 4); /* align to word boundary */
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if (nbytes + 1 > 0 &&
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(task->data = (char *) Xmalloc ((unsigned)nbytes + 1)))
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{
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#ifdef DEBUG_SPEW
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printf ("%s: already read %d bytes using %ld more, eating %ld more\n",
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__FUNCTION__, bytes_read, nbytes, netbytes);
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#endif
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/* _XRead16Pad (dpy, (short *) task->data, netbytes); */
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_XGetAsyncData (dpy, task->data, buf, len,
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bytes_read, nbytes, netbytes);
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}
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break;
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case 32:
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/* NOTE buffer is in longs to match XGetWindowProperty() */
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nbytes = reply->nItems * sizeof (long);
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netbytes = reply->nItems << 2; /* wire size is always 32 bits though */
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if (nbytes + 1 > 0 &&
|
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(task->data = (char *) Xmalloc ((unsigned)nbytes + 1)))
|
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{
|
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#ifdef DEBUG_SPEW
|
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printf ("%s: already read %d bytes using %ld more, eating %ld more\n",
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__FUNCTION__, bytes_read, nbytes, netbytes);
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#endif
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/* We have to copy the XGetWindowProperty() crackrock
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* and get format 32 as long even on 64-bit platforms.
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*/
|
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if (sizeof (long) == 8)
|
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{
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char *netdata;
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char *lptr;
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char *end_lptr;
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|
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/* Store the 32-bit values in the end of the array */
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netdata = task->data + nbytes / 2;
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|
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_XGetAsyncData (dpy, netdata, buf, len,
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bytes_read, netbytes,
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netbytes);
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/* Now move the 32-bit values to the front */
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lptr = task->data;
|
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end_lptr = task->data + nbytes;
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while (lptr != end_lptr)
|
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{
|
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*(long*) lptr = *(CARD32*) netdata;
|
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lptr += sizeof (long);
|
||||
netdata += sizeof (CARD32);
|
||||
}
|
||||
}
|
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else
|
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{
|
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/* Here the wire format matches our actual format */
|
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_XGetAsyncData (dpy, task->data, buf, len,
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bytes_read, netbytes,
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netbytes);
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}
|
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}
|
||||
break;
|
||||
|
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default:
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/*
|
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* This part of the code should never be reached. If it is,
|
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* the server sent back a property with an invalid format.
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* This is a BadImplementation error.
|
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*
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* However this async GetProperty API doesn't report errors
|
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* via the standard X mechanism, so don't do anything about
|
||||
* it, other than store it in task->error.
|
||||
*/
|
||||
{
|
||||
#if 0
|
||||
xError error;
|
||||
#endif
|
||||
|
||||
task->error = BadImplementation;
|
||||
|
||||
#if 0
|
||||
error.sequenceNumber = task->request_seq;
|
||||
error.type = X_Error;
|
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error.majorCode = X_GetProperty;
|
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error.minorCode = 0;
|
||||
error.errorCode = BadImplementation;
|
||||
|
||||
_XError (dpy, &error);
|
||||
#endif
|
||||
}
|
||||
|
||||
nbytes = netbytes = 0L;
|
||||
break;
|
||||
}
|
||||
|
||||
if (task->data == NULL)
|
||||
{
|
||||
task->error = BadAlloc;
|
||||
|
||||
#ifdef DEBUG_SPEW
|
||||
printf ("%s: already read %d bytes eating %ld\n",
|
||||
__FUNCTION__, bytes_read, netbytes);
|
||||
#endif
|
||||
/* _XEatData (dpy, (unsigned long) netbytes); */
|
||||
_XGetAsyncData (dpy, NULL, buf, len,
|
||||
bytes_read, 0, netbytes);
|
||||
|
||||
/* UnlockDisplay (dpy); */
|
||||
return BadAlloc; /* not Success */
|
||||
}
|
||||
|
||||
(task->data)[nbytes] = '\0';
|
||||
}
|
||||
|
||||
#ifdef DEBUG_SPEW
|
||||
printf ("%s: have data\n", __FUNCTION__);
|
||||
#endif
|
||||
|
||||
task->actual_type = reply->propertyType;
|
||||
task->actual_format = reply->format;
|
||||
task->n_items = reply->nItems;
|
||||
task->bytes_after = reply->bytesAfter;
|
||||
|
||||
/* UnlockDisplay (dpy); */
|
||||
|
||||
return True;
|
||||
}
|
||||
|
||||
static AgPerDisplayData*
|
||||
get_display_data (Display *display,
|
||||
Bool create)
|
||||
{
|
||||
ListNode *node;
|
||||
AgPerDisplayData *dd;
|
||||
|
||||
node = display_datas;
|
||||
while (node != NULL)
|
||||
{
|
||||
dd = (AgPerDisplayData*) node;
|
||||
|
||||
if (dd->display == display)
|
||||
return dd;
|
||||
|
||||
node = node->next;
|
||||
}
|
||||
|
||||
if (!create)
|
||||
return NULL;
|
||||
|
||||
dd = Xcalloc (1, sizeof (AgPerDisplayData));
|
||||
if (dd == NULL)
|
||||
return NULL;
|
||||
|
||||
dd->display = display;
|
||||
dd->async.next = display->async_handlers;
|
||||
dd->async.handler = async_get_property_handler;
|
||||
dd->async.data = (XPointer) dd;
|
||||
dd->display->async_handlers = &dd->async;
|
||||
|
||||
append_to_list (&display_datas,
|
||||
&display_datas_tail,
|
||||
&dd->node);
|
||||
|
||||
return dd;
|
||||
}
|
||||
|
||||
static void
|
||||
maybe_free_display_data (AgPerDisplayData *dd)
|
||||
{
|
||||
if (dd->pending_tasks == NULL &&
|
||||
dd->completed_tasks == NULL)
|
||||
{
|
||||
DeqAsyncHandler (dd->display, &dd->async);
|
||||
remove_from_list (&display_datas, &display_datas_tail,
|
||||
&dd->node);
|
||||
XFree (dd);
|
||||
}
|
||||
}
|
||||
|
||||
AgGetPropertyTask*
|
||||
ag_task_create (Display *dpy,
|
||||
Window window,
|
||||
Atom property,
|
||||
long offset,
|
||||
long length,
|
||||
Bool delete,
|
||||
Atom req_type)
|
||||
{
|
||||
AgGetPropertyTask *task;
|
||||
xGetPropertyReq *req;
|
||||
AgPerDisplayData *dd;
|
||||
|
||||
/* Fire up our request */
|
||||
LockDisplay (dpy);
|
||||
|
||||
dd = get_display_data (dpy, True);
|
||||
if (dd == NULL)
|
||||
{
|
||||
UnlockDisplay (dpy);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
GetReq (GetProperty, req);
|
||||
req->window = window;
|
||||
req->property = property;
|
||||
req->type = req_type;
|
||||
req->delete = delete;
|
||||
req->longOffset = offset;
|
||||
req->longLength = length;
|
||||
|
||||
/* Queue up our async task */
|
||||
task = Xcalloc (1, sizeof (AgGetPropertyTask));
|
||||
if (task == NULL)
|
||||
{
|
||||
UnlockDisplay (dpy);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
task->dd = dd;
|
||||
task->window = window;
|
||||
task->property = property;
|
||||
task->request_seq = dpy->request;
|
||||
|
||||
append_to_list (&dd->pending_tasks,
|
||||
&dd->pending_tasks_tail,
|
||||
&task->node);
|
||||
dd->n_tasks_pending += 1;
|
||||
|
||||
UnlockDisplay (dpy);
|
||||
|
||||
SyncHandle ();
|
||||
|
||||
return task;
|
||||
}
|
||||
|
||||
static void
|
||||
free_task (AgGetPropertyTask *task)
|
||||
{
|
||||
remove_from_list (&task->dd->completed_tasks,
|
||||
&task->dd->completed_tasks_tail,
|
||||
&task->node);
|
||||
task->dd->n_tasks_completed -= 1;
|
||||
maybe_free_display_data (task->dd);
|
||||
XFree (task);
|
||||
}
|
||||
|
||||
Status
|
||||
ag_task_get_reply_and_free (AgGetPropertyTask *task,
|
||||
Atom *actual_type,
|
||||
int *actual_format,
|
||||
unsigned long *nitems,
|
||||
unsigned long *bytesafter,
|
||||
char **prop)
|
||||
{
|
||||
Display *dpy;
|
||||
|
||||
*prop = NULL;
|
||||
|
||||
dpy = task->dd->display; /* Xlib macros require a variable named "dpy" */
|
||||
|
||||
if (task->error != Success)
|
||||
{
|
||||
Status s = task->error;
|
||||
|
||||
free_task (task);
|
||||
|
||||
return s;
|
||||
}
|
||||
|
||||
if (!task->have_reply)
|
||||
{
|
||||
free_task (task);
|
||||
|
||||
return BadAlloc; /* not Success */
|
||||
}
|
||||
|
||||
*actual_type = task->actual_type;
|
||||
*actual_format = task->actual_format;
|
||||
*nitems = task->n_items;
|
||||
*bytesafter = task->bytes_after;
|
||||
|
||||
*prop = task->data; /* pass out ownership of task->data */
|
||||
|
||||
SyncHandle ();
|
||||
|
||||
free_task (task);
|
||||
|
||||
return Success;
|
||||
}
|
||||
|
||||
Bool
|
||||
ag_task_have_reply (AgGetPropertyTask *task)
|
||||
{
|
||||
return task->have_reply;
|
||||
}
|
||||
|
||||
Atom
|
||||
ag_task_get_property (AgGetPropertyTask *task)
|
||||
{
|
||||
return task->property;
|
||||
}
|
||||
|
||||
Window
|
||||
ag_task_get_window (AgGetPropertyTask *task)
|
||||
{
|
||||
return task->window;
|
||||
}
|
||||
|
||||
Display*
|
||||
ag_task_get_display (AgGetPropertyTask *task)
|
||||
{
|
||||
return task->dd->display;
|
||||
}
|
||||
|
||||
AgGetPropertyTask*
|
||||
ag_get_next_completed_task (Display *display)
|
||||
{
|
||||
AgPerDisplayData *dd;
|
||||
|
||||
dd = get_display_data (display, False);
|
||||
|
||||
if (dd == NULL)
|
||||
return NULL;
|
||||
|
||||
#ifdef DEBUG_SPEW
|
||||
printf ("%d pending %d completed\n",
|
||||
dd->n_tasks_pending,
|
||||
dd->n_tasks_completed);
|
||||
#endif
|
||||
|
||||
return (AgGetPropertyTask*) dd->completed_tasks;
|
||||
}
|
||||
|
||||
void*
|
||||
ag_Xmalloc (unsigned long bytes)
|
||||
{
|
||||
return (void*) Xmalloc (bytes);
|
||||
}
|
||||
|
||||
void*
|
||||
ag_Xmalloc0 (unsigned long bytes)
|
||||
{
|
||||
return (void*) Xcalloc (bytes, 1);
|
||||
}
|
||||
Reference in New Issue
Block a user