LCOV - code coverage report
Current view: top level - src - ath-pthread.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 36 54 66.7 %
Date: 2015-11-05 17:14:26 Functions: 8 15 53.3 %

          Line data    Source code
       1             : /* ath-pthread.c - pthread module for self-adapting thread-safeness library
       2             :    Copyright (C) 2002, 2003, 2004 g10 Code GmbH
       3             : 
       4             :    This file is part of GPGME.
       5             : 
       6             :    GPGME is free software; you can redistribute it and/or modify it
       7             :    under the terms of the GNU Lesser General Public License as
       8             :    published by the Free Software Foundation; either version 2.1 of
       9             :    the License, or (at your option) any later version.
      10             : 
      11             :    GPGME is distributed in the hope that it will be useful, but
      12             :    WITHOUT ANY WARRANTY; without even the implied warranty of
      13             :    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      14             :    Lesser General Public License for more details.
      15             : 
      16             :    You should have received a copy of the GNU Lesser General Public
      17             :    License along with this program; if not, write to the Free Software
      18             :    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
      19             :    02111-1307, USA.  */
      20             : 
      21             : #ifdef HAVE_CONFIG_H
      22             : #include <config.h>
      23             : #endif
      24             : 
      25             : #include <stdlib.h>
      26             : #include <errno.h>
      27             : #ifdef HAVE_UNISTD_H
      28             : # include <unistd.h>
      29             : #endif
      30             : #ifdef HAVE_SYS_SELECT_H
      31             : # include <sys/select.h>
      32             : #else
      33             : # ifdef HAVE_SYS_TIME_H
      34             : #  include <sys/time.h>
      35             : # endif
      36             : #endif
      37             : #include <sys/types.h>
      38             : #include <sys/wait.h>
      39             : 
      40             : #include <pthread.h>
      41             : 
      42             : #include "gpgme.h"
      43             : 
      44             : #include "ath.h"
      45             : 
      46             : 
      47             : /* The lock we take while checking for lazy lock initialization.  */
      48             : static pthread_mutex_t check_init_lock = PTHREAD_MUTEX_INITIALIZER;
      49             : 
      50             : /* Initialize the mutex *PRIV.  If JUST_CHECK is true, only do this if
      51             :    it is not already initialized.  */
      52             : static int
      53        4063 : mutex_pthread_init (ath_mutex_t *priv, int just_check)
      54             : {
      55        4063 :   int err = 0;
      56             : 
      57        4063 :   if (just_check)
      58        4063 :     pthread_mutex_lock (&check_init_lock);
      59        4063 :   if (!*priv || !just_check)
      60             :     {
      61          85 :       pthread_mutex_t *lock = malloc (sizeof (pthread_mutex_t));
      62          85 :       if (!lock)
      63           0 :         err = ENOMEM;
      64          85 :       if (!err)
      65             :         {
      66          85 :           err = pthread_mutex_init (lock, NULL);
      67          85 :           if (err)
      68           0 :             free (lock);
      69             :           else
      70          85 :             *priv = (ath_mutex_t) lock;
      71             :         }
      72             :     }
      73        4063 :   if (just_check)
      74        4063 :     pthread_mutex_unlock (&check_init_lock);
      75        4063 :   return err;
      76             : }
      77             : 
      78             : 
      79             : void
      80           0 : ath_init (void)
      81             : {
      82             :   /* Nothing to do.  */
      83           0 : }
      84             : 
      85             : 
      86             : uintptr_t
      87           0 : ath_self (void)
      88             : {
      89           0 :   return (uintptr_t) pthread_self ();
      90             : }
      91             : 
      92             : 
      93             : int
      94           0 : ath_mutex_init (ath_mutex_t *lock)
      95             : {
      96           0 :   return mutex_pthread_init (lock, 0);
      97             : }
      98             : 
      99             : 
     100             : int
     101          79 : ath_mutex_destroy (ath_mutex_t *lock)
     102             : {
     103          79 :   int err = mutex_pthread_init (lock, 1);
     104          79 :   if (!err)
     105             :     {
     106          79 :       err = pthread_mutex_destroy ((pthread_mutex_t *) *lock);
     107          79 :       free (*lock);
     108             :     }
     109          79 :   return err;
     110             : }
     111             : 
     112             : 
     113             : int
     114        1992 : ath_mutex_lock (ath_mutex_t *lock)
     115             : {
     116        1992 :   int ret = mutex_pthread_init (lock, 1);
     117        1992 :   if (ret)
     118           0 :     return ret;
     119             : 
     120        1992 :   return pthread_mutex_lock ((pthread_mutex_t *) *lock);
     121             : }
     122             : 
     123             : 
     124             : int
     125        1992 : ath_mutex_unlock (ath_mutex_t *lock)
     126             : {
     127        1992 :   int ret = mutex_pthread_init (lock, 1);
     128        1992 :   if (ret)
     129           0 :     return ret;
     130             : 
     131        1992 :   return pthread_mutex_unlock ((pthread_mutex_t *) *lock);
     132             : }
     133             : 
     134             : 
     135             : gpgme_ssize_t
     136         479 : ath_read (int fd, void *buf, size_t nbytes)
     137             : {
     138         479 :   return read (fd, buf, nbytes);
     139             : }
     140             : 
     141             : 
     142             : gpgme_ssize_t
     143          39 : ath_write (int fd, const void *buf, size_t nbytes)
     144             : {
     145          39 :   return write (fd, buf, nbytes);
     146             : }
     147             : 
     148             : 
     149             : gpgme_ssize_t
     150         936 : ath_select (int nfd, fd_set *rset, fd_set *wset, fd_set *eset,
     151             :             struct timeval *timeout)
     152             : {
     153         936 :   return select (nfd, rset, wset, eset, timeout);
     154             : }
     155             : 
     156             : 
     157             : gpgme_ssize_t
     158         125 : ath_waitpid (pid_t pid, int *status, int options)
     159             : {
     160         125 :   return waitpid (pid, status, options);
     161             : }
     162             : 
     163             : 
     164             : int
     165           0 : ath_accept (int s, struct sockaddr *addr, socklen_t *length_ptr)
     166             : {
     167           0 :   return accept (s, addr, length_ptr);
     168             : }
     169             : 
     170             : 
     171             : int
     172           0 : ath_connect (int s, const struct sockaddr *addr, socklen_t length)
     173             : {
     174           0 :   return connect (s, addr, length);
     175             : }
     176             : 
     177             : int
     178           0 : ath_sendmsg (int s, const struct msghdr *msg, int flags)
     179             : {
     180           0 :   return sendmsg (s, msg, flags);
     181             : }
     182             : 
     183             : 
     184             : int
     185           0 : ath_recvmsg (int s, struct msghdr *msg, int flags)
     186             : {
     187           0 :   return recvmsg (s, msg, flags);
     188             : }

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