diff options
Diffstat (limited to 'libkdenetwork/libgpgme-copy/gpgme/wait-private.c')
| -rw-r--r-- | libkdenetwork/libgpgme-copy/gpgme/wait-private.c | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/libkdenetwork/libgpgme-copy/gpgme/wait-private.c b/libkdenetwork/libgpgme-copy/gpgme/wait-private.c new file mode 100644 index 000000000..73f11b760 --- /dev/null +++ b/libkdenetwork/libgpgme-copy/gpgme/wait-private.c @@ -0,0 +1,147 @@ +/* wait-private.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 <errno.h> + +#include "gpgme.h" +#include "context.h" +#include "wait.h" +#include "ops.h" +#include "priv-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) + { + ctx->fdt.fds[i].signaled = 0; + assert (nr); + nr--; + + err = _gpgme_run_io_cb (&ctx->fdt.fds[i], 0); + 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); +} |