LCOV - code coverage report
Current view: top level - tests/gpg - t-cancel.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 0 91 0.0 %
Date: 2018-11-14 16:53:58 Functions: 0 7 0.0 %

          Line data    Source code
       1             : /* t-thread-cancel.c - Regression test.
       2             :    Copyright (C) 2000 Werner Koch (dd9jn)
       3             :    Copyright (C) 2001, 2003, 2004 g10 Code GmbH
       4             : 
       5             :    This file is part of GPGME.
       6             : 
       7             :    GPGME is free software; you can redistribute it and/or modify it
       8             :    under the terms of the GNU Lesser General Public License as
       9             :    published by the Free Software Foundation; either version 2.1 of
      10             :    the License, or (at your option) any later version.
      11             : 
      12             :    GPGME is distributed in the hope that it will be useful, but
      13             :    WITHOUT ANY WARRANTY; without even the implied warranty of
      14             :    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      15             :    Lesser General Public License for more details.
      16             : 
      17             :    You should have received a copy of the GNU Lesser General Public
      18             :    License along with this program; if not, write to the Free Software
      19             :    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
      20             :    02111-1307, USA.  */
      21             : 
      22             : /* We need to include config.h so that we know whether we are building
      23             :    with large file system (LFS) support. */
      24             : #ifdef HAVE_CONFIG_H
      25             : #include <config.h>
      26             : #endif
      27             : 
      28             : #include <stdlib.h>
      29             : #include <stdio.h>
      30             : #include <string.h>
      31             : #include <assert.h>
      32             : #include <limits.h>
      33             : #include <ctype.h>
      34             : #include <errno.h>
      35             : #ifdef HAVE_SYS_TIME_H
      36             : # include <sys/time.h>
      37             : #endif
      38             : #include <sys/types.h>
      39             : #include <unistd.h>
      40             : #include <pthread.h>
      41             : #ifdef HAVE_SYS_SELECT_H
      42             : # include <sys/select.h>
      43             : #endif
      44             : 
      45             : #include <gpgme.h>
      46             : 
      47             : #include "t-support.h"
      48             : 
      49             : struct op_result
      50             : {
      51             :   int done;
      52             :   gpgme_error_t err;
      53             : };
      54             : 
      55             : static struct op_result op_result;
      56             : 
      57             : struct one_fd
      58             : {
      59             :   int fd;
      60             :   int dir;
      61             :   gpgme_io_cb_t fnc;
      62             :   void *fnc_data;
      63             : };
      64             : 
      65             : #define FDLIST_MAX 32
      66             : static struct one_fd fdlist[FDLIST_MAX];
      67             : 
      68             : static pthread_mutex_t lock;
      69             : 
      70             : static gpgme_error_t
      71           0 : add_io_cb (void *data, int fd, int dir, gpgme_io_cb_t fnc, void *fnc_data,
      72             :            void **r_tag)
      73             : {
      74           0 :   struct one_fd *fds = data;
      75             :   int i;
      76             : 
      77           0 :   pthread_mutex_lock (&lock);
      78           0 :   for (i = 0; i < FDLIST_MAX; i++)
      79             :     {
      80           0 :       if (fds[i].fd == -1)
      81             :         {
      82           0 :           fds[i].fd = fd;
      83           0 :           fds[i].dir = dir;
      84           0 :           fds[i].fnc = fnc;
      85           0 :           fds[i].fnc_data = fnc_data;
      86           0 :           break;
      87             :         }
      88             :     }
      89           0 :   pthread_mutex_unlock (&lock);
      90           0 :   if (i == FDLIST_MAX)
      91           0 :     return gpgme_err_make (GPG_ERR_SOURCE_USER_1, GPG_ERR_GENERAL);
      92           0 :   *r_tag = &fds[i];
      93           0 :   return 0;
      94             : }
      95             : 
      96             : static void
      97           0 : remove_io_cb (void *tag)
      98             : {
      99           0 :   struct one_fd *fd = tag;
     100             : 
     101           0 :   pthread_mutex_lock (&lock);
     102           0 :   fd->fd = -1;
     103           0 :   pthread_mutex_unlock (&lock);
     104           0 : }
     105             : 
     106             : static void
     107           0 : io_event (void *data, gpgme_event_io_t type, void *type_data)
     108             : {
     109           0 :   struct op_result *result = data;
     110             : 
     111           0 :   if (type == GPGME_EVENT_DONE)
     112             :     {
     113           0 :       result->done = 1;
     114           0 :       result->err = * (gpgme_error_t *) type_data;
     115             :     }
     116           0 : }
     117             : 
     118             : 
     119             : static int
     120           0 : do_select (void)
     121             : {
     122             :   fd_set rfds;
     123             :   fd_set wfds;
     124             :   int i, n;
     125           0 :   int any = 0;
     126             :   struct timeval tv;
     127             : 
     128           0 :   pthread_mutex_lock (&lock);
     129           0 :   FD_ZERO (&rfds);
     130           0 :   FD_ZERO (&wfds);
     131           0 :   for (i = 0; i < FDLIST_MAX; i++)
     132           0 :     if (fdlist[i].fd != -1)
     133           0 :       FD_SET (fdlist[i].fd, fdlist[i].dir ? &rfds : &wfds);
     134           0 :   pthread_mutex_unlock (&lock);
     135             : 
     136           0 :   tv.tv_sec = 0;
     137           0 :   tv.tv_usec = 1000;
     138             : 
     139             :   do
     140             :     {
     141           0 :       n = select (FD_SETSIZE, &rfds, &wfds, NULL, &tv);
     142             :     }
     143           0 :   while (n < 0 && errno == EINTR);
     144             : 
     145           0 :   if (n < 0)
     146           0 :     return n;   /* Error or timeout.  */
     147             : 
     148           0 :   pthread_mutex_lock (&lock);
     149           0 :   for (i = 0; i < FDLIST_MAX && n; i++)
     150             :     {
     151           0 :       if (fdlist[i].fd != -1)
     152             :         {
     153           0 :           if (FD_ISSET (fdlist[i].fd, fdlist[i].dir ? &rfds : &wfds))
     154             :             {
     155           0 :               assert (n);
     156           0 :               n--;
     157           0 :               any = 1;
     158           0 :               (*fdlist[i].fnc) (fdlist[i].fnc_data, fdlist[i].fd);
     159             :             }
     160             :         }
     161             :     }
     162           0 :   pthread_mutex_unlock (&lock);
     163           0 :   return any;
     164             : }
     165             : 
     166             : static int
     167           0 : my_wait (void)
     168             : {
     169             :   int n;
     170             : 
     171             :   do
     172             :     {
     173           0 :       n = do_select ();
     174             :     }
     175           0 :   while (n >= 0 && !op_result.done);
     176           0 :   return 0;
     177             : }
     178             : 
     179             : 
     180             : static struct gpgme_io_cbs io_cbs =
     181             :   {
     182             :     add_io_cb,
     183             :     fdlist,
     184             :     remove_io_cb,
     185             :     io_event,
     186             :     &op_result
     187             :   };
     188             : 
     189             : 
     190             : static void *
     191           0 : thread_cancel (void *data)
     192             : {
     193           0 :   gpgme_ctx_t ctx = data;
     194             :   gpgme_error_t err;
     195             : 
     196           0 :   usleep (100000);
     197           0 :   err = gpgme_cancel (ctx);
     198           0 :   fail_if_err (err);
     199             : 
     200           0 :   return NULL;
     201             : }
     202             : 
     203             : int
     204           0 : main (void)
     205             : {
     206             :   gpgme_ctx_t ctx;
     207             :   gpgme_error_t err;
     208             :   gpgme_engine_info_t info;
     209             :   int i;
     210             :   pthread_mutexattr_t attr;
     211             :   pthread_t tcancel;
     212           0 :   const char *parms = "<GnupgKeyParms format=\"internal\">\n"
     213             :     "Key-Type: RSA\n"
     214             :     "Key-Length: 2048\n"
     215             :     "Subkey-Type: RSA\n"
     216             :     "Subkey-Length: 2048\n"
     217             :     "Name-Real: Joe Tester\n"
     218             :     "Name-Comment: (pp=abc)\n"
     219             :     "Name-Email: joe@foo.bar\n"
     220             :     "Expire-Date: 0\n"
     221             :     "Passphrase: abc\n"
     222             :     "</GnupgKeyParms>\n";
     223             : 
     224           0 :   init_gpgme (GPGME_PROTOCOL_OpenPGP);
     225             : 
     226           0 :   err = gpgme_get_engine_info (&info);
     227           0 :   fail_if_err (err);
     228             : 
     229             :   /* The mutex must be recursive, since remove_io_cb (which acquires a
     230             :      lock) can be called while holding a lock acquired in do_select.  */
     231           0 :   pthread_mutexattr_init (&attr);
     232           0 :   pthread_mutexattr_settype (&attr, PTHREAD_MUTEX_RECURSIVE);
     233           0 :   pthread_mutex_init (&lock, &attr);
     234           0 :   pthread_mutexattr_destroy (&attr);
     235             : 
     236           0 :   for (i = 0; i < FDLIST_MAX; i++)
     237           0 :     fdlist[i].fd = -1;
     238             : 
     239           0 :   err = gpgme_new (&ctx);
     240           0 :   fail_if_err (err);
     241           0 :   gpgme_set_armor (ctx, 1);
     242           0 :   gpgme_set_io_cbs (ctx, &io_cbs);
     243           0 :   op_result.done = 0;
     244             : 
     245           0 :   pthread_create (&tcancel, NULL, thread_cancel, ctx);
     246             : 
     247           0 :   err = gpgme_op_genkey_start (ctx, parms, NULL, NULL);
     248           0 :   fail_if_err (err);
     249             : 
     250           0 :   my_wait ();
     251             : 
     252           0 :   pthread_join (tcancel, NULL);
     253             : 
     254           0 :   if (op_result.err)
     255             :     {
     256           0 :       if (gpgme_err_code (op_result.err) == GPG_ERR_CANCELED)
     257           0 :         fputs ("Successfully cancelled\n", stdout);
     258             :       else
     259             :         {
     260           0 :           fprintf (stderr,
     261             :                    "%s:%i: Operation finished with unexpected error: %s\n",
     262             :                    __FILE__, __LINE__, gpgme_strerror (op_result.err));
     263           0 :           exit (1);
     264             :         }
     265             :     }
     266             :   else
     267           0 :     fputs ("Successfully finished before cancellation\n", stdout);
     268             : 
     269           0 :   gpgme_release (ctx);
     270             : 
     271           0 :   return 0;
     272             : }

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