1 files changed, 122 insertions, 0 deletions
diff --git a/src/wait-user.c b/src/wait-user.c
new file mode 100644
index 00000000..995657fa
--- /dev/null
+++ b/src/wait-user.c
@@ -0,0 +1,122 @@
+/* wait-user.c 
+   Copyright (C) 2000 Werner Koch (dd9jn)
+   Copyright (C) 2001, 2002, 2003, 2004, 2005 g10 Code GmbH
+ 
+   This file is part of GPGME.
+ 
+   GPGME is free software; you can redistribute it and/or modify it
+   under the terms of the GNU Lesser General Public License as
+   published by the Free Software Foundation; either version 2.1 of
+   the License, or (at your option) any later version.
+   
+   GPGME is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+   
+   You should have received a copy of the GNU Lesser General Public
+   License along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+   02111-1307, USA.  */
+
+#if HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <assert.h>
+
+#include "gpgme.h"
+#include "context.h"
+#include "priv-io.h"
+#include "wait.h"
+#include "ops.h"
+
+
+/* The user event loops are used for all asynchronous operations for
+   which a user callback is defined.  */
+
+
+/* Internal I/O Callbacks.  */
+
+gpgme_error_t
+_gpgme_user_io_cb_handler (void *data, int fd)
+{
+  gpgme_error_t err = 0;
+  struct tag *tag = (struct tag *) data;
+  gpgme_ctx_t ctx;
+
+  assert (data);
+  ctx = tag->ctx;
+  assert (ctx);
+
+  LOCK (ctx->lock);
+  if (ctx->canceled)
+    err = gpg_error (GPG_ERR_CANCELED);
+  UNLOCK (ctx->lock);
+
+  if (! err)
+    err = _gpgme_run_io_cb (&ctx->fdt.fds[tag->idx], 0);
+  if (err)
+    _gpgme_cancel_with_err (ctx, err);
+  else
+    {
+      unsigned int i;
+
+      for (i = 0; i < ctx->fdt.size; i++)
+	if (ctx->fdt.fds[i].fd != -1)
+	  break;
+      if (i == ctx->fdt.size)
+	_gpgme_engine_io_event (ctx->engine, GPGME_EVENT_DONE, &err);
+    }
+  return 0;
+}
+
+
+/* Register the file descriptor FD with the handler FNC (which gets
+   FNC_DATA as its first argument) for the direction DIR.  DATA should
+   be the context for which the fd is added.  R_TAG will hold the tag
+   that can be used to remove the fd.  */
+gpgme_error_t
+_gpgme_wait_user_add_io_cb (void *data, int fd, int dir, gpgme_io_cb_t fnc,
+			    void *fnc_data, void **r_tag)
+{
+  gpgme_ctx_t ctx = (gpgme_ctx_t) data;
+  struct tag *tag;
+  gpgme_error_t err;
+
+  assert (ctx);
+  err = _gpgme_add_io_cb (data, fd, dir, fnc, fnc_data, r_tag);
+  if (err)
+    return err;
+  tag = *r_tag;
+  assert (tag);
+  err = (*ctx->io_cbs.add) (ctx->io_cbs.add_priv, fd, dir,
+			    _gpgme_user_io_cb_handler, *r_tag,
+			    &tag->user_tag);
+  if (err)
+    _gpgme_remove_io_cb (*r_tag);
+  return err;
+}
+
+
+void
+_gpgme_wait_user_remove_io_cb (void *data)
+{
+  struct tag *tag = (struct tag *) data;
+  gpgme_ctx_t ctx;
+
+  assert (tag);
+  ctx = tag->ctx;
+
+  (*ctx->io_cbs.remove) (tag->user_tag);
+  _gpgme_remove_io_cb (data);
+}
+
+
+void
+_gpgme_wait_user_event_cb (void *data, gpgme_event_io_t type, void *type_data)
+{
+  gpgme_ctx_t ctx = data;
+
+  if (ctx->io_cbs.event)
+    (*ctx->io_cbs.event) (ctx->io_cbs.event_priv, type, type_data);
+}