apps/zde/appsrv.c

   1 /*
   2  *  ZeX/OS
   3  *  Copyright (C) 2009  Tomas 'ZeXx86' Jedrzejek (zexx86@zexos.org)
   4  *
   5  *  This program is free software: you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation, either version 3 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19
  20 #include <fcntl.h>
  21 #include <stdio.h>
  22 #include <string.h>
  23 #include <stdlib.h>
  24 #include <pthread.h>
  25 #include <libx/base.h>
  26 #include <libx/object.h>
  27 #include <libx/image.h>
  28 #include <libx/cursor.h>
  29 #include <libx/text.h>
  30 #include <ipc.h>
  31
  32 #include "appcl.h"
  33 #include "appsrv.h"
  34 #include "dialog.h"
  35 #include "cursor.h"
  36
  37 int appsrv_fd;
  38 int appcl_fd;
  39 char appsrv_buf[100];
  40
  41 int appsrv_accept (int fd)
  42 {
  43         ipc_send (fd, "ZDE", 3);
  44
  45         return 0;
  46 }
  47
  48 int appsrv_redraw (zde_dobj_appcl_t *appcl)
  49 {
  50         if (!appcl)
  51                 return -1;
  52
  53         /* new window (client) */
  54         if (appcl->fd == -1 && appcl_fd != -1) {
  55                 appcl->fd = appcl_fd;
  56                 appcl_fd = -1;
  57         }
  58
  59         if (appcl->fd > 0 && !(appcl->state & APPCL_STATE_REDRAW)) {
  60                 appcl->state |= APPCL_STATE_REDRAW;
  61
  62                 zde_drawlock ();
  63
  64                 ipc_send (appcl->fd, (char *) appcl, sizeof (appcl_t));
  65
  66                 int ret = ipc_recv (appcl->fd, (char *) appsrv_buf, 99);
  67
  68                 if (ret > 0) {
  69                         memcpy (appcl, appsrv_buf, sizeof (appcl_t));
  70
  71                         if (appcl->state & APPCL_STATE_RECVOK) {
  72                                 appcl->state &= ~APPCL_STATE_RECVOK;
  73                                 zde_drawunlock ();
  74                         }
  75
  76                         return 0;
  77                 }
  78         }
  79
  80         return -1;
  81 }
  82
  83 int appsrv_exit (zde_dobj_appcl_t *appcl)
  84 {
  85         if (!appcl)
  86                 return -1;
  87
  88         /* new window (client) ? */
  89         if (appcl->fd == -1)
  90                 return -1;
  91
  92         appcl->state |= APPCL_STATE_EXIT;
  93
  94         ipc_send (appcl->fd, (char *) appcl, sizeof (appcl_t));
  95
  96         return 0;
  97 }
  98
  99 void *handler_appsrv (void *p)
 100 {
 101         for (;; schedule ()) {
 102                 int fd = ipc_accept (appsrv_fd);
 103
 104                 if (fd > 0) {
 105                         appsrv_accept (fd);
 106                         appcl_fd = fd;
 107                 }
 108         }
 109
 110         return (0);
 111 }
 112
 113 int init_appsrv ()
 114 {
 115         appsrv_fd = ipc_create ("/zdeserver", 0);
 116
 117         if (appsrv_fd < 1)
 118                 return -1;
 119
 120         appcl_fd = -1;
 121
 122         pthread_t thread;
 123
 124         pthread_create (&thread, NULL, handler_appsrv, 0);
 125
 126         return 0;
 127 }