7aaa379c44
* wait-user.c (_gpgme_wait_user_remove_io_cb): Move check for no I/O handlers left to ... (_gpgme_user_io_cb_handler): ... here.
128 lines
3.1 KiB
C
128 lines
3.1 KiB
C
/* wait.c
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Copyright (C) 2000 Werner Koch (dd9jn)
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Copyright (C) 2001, 2002, 2003 g10 Code GmbH
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This file is part of GPGME.
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GPGME is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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GPGME is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GPGME; if not, write to the Free Software Foundation,
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Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#if HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <assert.h>
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#include "gpgme.h"
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#include "context.h"
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#include "io.h"
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#include "wait.h"
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/* The user event loops are used for all asynchronous operations for
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which a user callback is defined. */
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/* Internal I/O Callbacks. */
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GpgmeError
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_gpgme_user_io_cb_handler (void *data, int fd)
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{
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GpgmeError err;
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struct tag *tag = (struct tag *) data;
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GpgmeCtx ctx;
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struct wait_item_s *item;
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assert (data);
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ctx = tag->ctx;
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assert (ctx);
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item = (struct wait_item_s *) ctx->fdt.fds[tag->idx].opaque;
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assert (item);
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err = (*item->handler) (item->handler_value, fd);
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if (err)
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{
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int idx;
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for (idx = 0; idx < ctx->fdt.size; idx++)
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if (ctx->fdt.fds[idx].fd != -1)
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_gpgme_io_close (ctx->fdt.fds[idx].fd);
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_gpgme_engine_io_event (ctx->engine, GPGME_EVENT_DONE, &err);
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}
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else
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{
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int i;
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for (i = 0; i < ctx->fdt.size; i++)
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if (ctx->fdt.fds[i].fd != -1)
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break;
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if (i == ctx->fdt.size)
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_gpgme_engine_io_event (ctx->engine, GPGME_EVENT_DONE, &err);
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}
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return 0;
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}
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/* Register the file descriptor FD with the handler FNC (which gets
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FNC_DATA as its first argument) for the direction DIR. DATA should
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be the context for which the fd is added. R_TAG will hold the tag
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that can be used to remove the fd. */
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GpgmeError
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_gpgme_wait_user_add_io_cb (void *data, int fd, int dir, GpgmeIOCb fnc,
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void *fnc_data, void **r_tag)
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{
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GpgmeCtx ctx = (GpgmeCtx) data;
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struct tag *tag;
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GpgmeError err;
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assert (ctx);
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err = _gpgme_add_io_cb (data, fd, dir, fnc, fnc_data, r_tag);
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if (err)
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return err;
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tag = *r_tag;
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assert (tag);
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err = (*ctx->io_cbs.add) (ctx->io_cbs.add_priv, fd, dir,
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_gpgme_user_io_cb_handler, *r_tag,
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&tag->user_tag);
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if (err)
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_gpgme_remove_io_cb (*r_tag);
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return err;
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}
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void
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_gpgme_wait_user_remove_io_cb (void *data)
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{
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struct tag *tag = (struct tag *) data;
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GpgmeCtx ctx;
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assert (tag);
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ctx = tag->ctx;
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(*ctx->io_cbs.remove) (tag->user_tag);
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_gpgme_remove_io_cb (data);
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}
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void
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_gpgme_wait_user_event_cb (void *data, GpgmeEventIO type, void *type_data)
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{
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GpgmeCtx ctx = data;
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if (type == GPGME_EVENT_DONE)
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ctx->pending = 0;
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if (ctx->io_cbs.event)
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(*ctx->io_cbs.event) (ctx->io_cbs.event_priv, type, type_data);
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}
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