f4c25d034c
* util.h (_gpgme_decode_c_string): Change type of LEN argument to size_t. (_gpgme_decode_percent_string): Likewise. * conversion.c (_gpgme_decode_c_string): Likewise. (_gpgme_decode_percent_string): Likewise. (_gpgme_map_gnupg_error): Change type of I to unsigned int. * signers.c (gpgme_signers_clear): Likewise. (gpgme_signers_enum): New unsigned variable SEQNO, set to SEQ. Use SEQNO instead SEQ. * wait.c (fd_table_put): Change type of I and J to unsigned int. * wait-global.c (_gpgme_wait_global_event_cb): Change type of IDX to unsigned int. (gpgme_wait): Change type of I and IDX to unsigned int. * wait-private.c (_gpgme_wait_on_condition): Change type of IDX and I to unsigned int. * posix-io.c (_gpgme_io_close): Cast return value of macro DIM to int to suppress gcc warning. (_gpgme_io_set_close_notify): Likewise. (_gpgme_io_select): Change type of I to unsigned int. * engine.c (gpgme_get_engine_info): Change type of PROTO to unsigned int. * wait-user.c (_gpgme_user_io_cb_handler): Change type of IDX and I to unsigned int.
151 lines
3.8 KiB
C
151 lines
3.8 KiB
C
/* wait-private.c
|
||
Copyright (C) 2000 Werner Koch (dd9jn)
|
||
Copyright (C) 2001, 2002, 2003 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 General Public License as published by
|
||
the Free Software Foundation; either version 2 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
|
||
General Public License for more details.
|
||
|
||
You should have received a copy of the GNU General Public License
|
||
along with GPGME; 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 <errno.h>
|
||
|
||
#include "gpgme.h"
|
||
#include "context.h"
|
||
#include "wait.h"
|
||
#include "ops.h"
|
||
#include "io.h"
|
||
#include "util.h"
|
||
|
||
|
||
/* The private event loops are used for all blocking operations, and
|
||
for the key and trust item listing operations. They are completely
|
||
separated from each other. */
|
||
|
||
|
||
/* Internal I/O callback functions. */
|
||
|
||
/* The add_io_cb and remove_io_cb handlers are shared with the global
|
||
event loops. */
|
||
|
||
void
|
||
_gpgme_wait_private_event_cb (void *data, gpgme_event_io_t type,
|
||
void *type_data)
|
||
{
|
||
switch (type)
|
||
{
|
||
case GPGME_EVENT_START:
|
||
/* Nothing to do here, as the wait routine is called after the
|
||
initialization is finished. */
|
||
break;
|
||
|
||
case GPGME_EVENT_DONE:
|
||
break;
|
||
|
||
case GPGME_EVENT_NEXT_KEY:
|
||
_gpgme_op_keylist_event_cb (data, type, type_data);
|
||
break;
|
||
|
||
case GPGME_EVENT_NEXT_TRUSTITEM:
|
||
_gpgme_op_trustlist_event_cb (data, type, type_data);
|
||
break;
|
||
}
|
||
}
|
||
|
||
|
||
/* If COND is a null pointer, wait until the blocking operation in CTX
|
||
finished and return its error value. Otherwise, wait until COND is
|
||
satisfied or the operation finished. */
|
||
gpgme_error_t
|
||
_gpgme_wait_on_condition (gpgme_ctx_t ctx, volatile int *cond)
|
||
{
|
||
gpgme_error_t err = 0;
|
||
int hang = 1;
|
||
|
||
do
|
||
{
|
||
int nr = _gpgme_io_select (ctx->fdt.fds, ctx->fdt.size, 0);
|
||
unsigned int i;
|
||
|
||
if (nr < 0)
|
||
{
|
||
/* An error occured. Close all fds in this context, and
|
||
signal it. */
|
||
unsigned int idx;
|
||
|
||
err = gpg_error_from_errno (errno);
|
||
for (idx = 0; idx < ctx->fdt.size; idx++)
|
||
if (ctx->fdt.fds[idx].fd != -1)
|
||
_gpgme_io_close (ctx->fdt.fds[idx].fd);
|
||
_gpgme_engine_io_event (ctx->engine, GPGME_EVENT_DONE, &err);
|
||
|
||
return err;
|
||
}
|
||
|
||
for (i = 0; i < ctx->fdt.size && nr; i++)
|
||
{
|
||
if (ctx->fdt.fds[i].fd != -1 && ctx->fdt.fds[i].signaled)
|
||
{
|
||
struct wait_item_s *item;
|
||
|
||
ctx->fdt.fds[i].signaled = 0;
|
||
assert (nr);
|
||
nr--;
|
||
|
||
item = (struct wait_item_s *) ctx->fdt.fds[i].opaque;
|
||
|
||
err = item->handler (item->handler_value, ctx->fdt.fds[i].fd);
|
||
if (err)
|
||
{
|
||
/* An error occured. Close all fds in this context,
|
||
and signal it. */
|
||
unsigned int idx;
|
||
|
||
for (idx = 0; idx < ctx->fdt.size; idx++)
|
||
if (ctx->fdt.fds[idx].fd != -1)
|
||
_gpgme_io_close (ctx->fdt.fds[idx].fd);
|
||
_gpgme_engine_io_event (ctx->engine, GPGME_EVENT_DONE, &err);
|
||
return err;
|
||
}
|
||
}
|
||
}
|
||
|
||
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);
|
||
hang = 0;
|
||
}
|
||
if (cond && *cond)
|
||
hang = 0;
|
||
}
|
||
while (hang);
|
||
|
||
return 0;
|
||
}
|
||
|
||
|
||
/* Wait until the blocking operation in context CTX has finished and
|
||
return the error value. */
|
||
gpgme_error_t
|
||
_gpgme_wait_one (gpgme_ctx_t ctx)
|
||
{
|
||
return _gpgme_wait_on_condition (ctx, NULL);
|
||
}
|