LCOV - code coverage report
Current view: top level - source4/heimdal/base - baselocl.h (source / functions) Hit Total Coverage
Test: coverage report for abartlet/fix-coverage dd10fb34 Lines: 0 6 0.0 %
Date: 2021-09-23 10:06:22 Functions: 0 2 0.0 %

          Line data    Source code
       1             : /*
       2             :  * Copyright (c) 2010 Kungliga Tekniska Högskolan
       3             :  * (Royal Institute of Technology, Stockholm, Sweden).
       4             :  * All rights reserved.
       5             :  *
       6             :  * Portions Copyright (c) 2010 Apple Inc. All rights reserved.
       7             :  *
       8             :  * Redistribution and use in source and binary forms, with or without
       9             :  * modification, are permitted provided that the following conditions
      10             :  * are met:
      11             :  *
      12             :  * 1. Redistributions of source code must retain the above copyright
      13             :  *    notice, this list of conditions and the following disclaimer.
      14             :  *
      15             :  * 2. Redistributions in binary form must reproduce the above copyright
      16             :  *    notice, this list of conditions and the following disclaimer in the
      17             :  *    documentation and/or other materials provided with the distribution.
      18             :  *
      19             :  * 3. Neither the name of the Institute nor the names of its contributors
      20             :  *    may be used to endorse or promote products derived from this software
      21             :  *    without specific prior written permission.
      22             :  *
      23             :  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
      24             :  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
      25             :  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
      26             :  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
      27             :  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
      28             :  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
      29             :  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
      30             :  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
      31             :  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
      32             :  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
      33             :  * SUCH DAMAGE.
      34             :  */
      35             : 
      36             : #include "config.h"
      37             : 
      38             : #ifdef HAVE_SYS_TYPES_H
      39             : #include <sys/types.h>
      40             : #endif
      41             : #ifdef HAVE_SYS_SELECT_H
      42             : #include <sys/select.h>
      43             : #endif
      44             : 
      45             : #include <stdio.h>
      46             : #include <stdlib.h>
      47             : #include <string.h>
      48             : #include <errno.h>
      49             : #include <limits.h>
      50             : 
      51             : #ifdef HAVE_UNISTD_H
      52             : #include <unistd.h>
      53             : #endif
      54             : 
      55             : #include "heimqueue.h"
      56             : #include "heim_threads.h"
      57             : #include "heimbase.h"
      58             : #include "heimbasepriv.h"
      59             : 
      60             : #ifdef HAVE_DISPATCH_DISPATCH_H
      61             : #include <dispatch/dispatch.h>
      62             : #endif
      63             : 
      64             : #if defined(__GNUC__) && defined(HAVE___SYNC_ADD_AND_FETCH)
      65             : 
      66             : #define heim_base_atomic_inc(x) __sync_add_and_fetch((x), 1)
      67             : #define heim_base_atomic_dec(x) __sync_sub_and_fetch((x), 1)
      68             : #define heim_base_atomic_type   unsigned int
      69             : #define heim_base_atomic_max    UINT_MAX
      70             : 
      71             : #define heim_base_exchange_pointer(t,v) __sync_lock_test_and_set((t), (v))
      72             : 
      73             : #elif defined(_WIN32)
      74             : 
      75             : #define heim_base_atomic_inc(x) InterlockedIncrement(x)
      76             : #define heim_base_atomic_dec(x) InterlockedDecrement(x)
      77             : #define heim_base_atomic_type   LONG
      78             : #define heim_base_atomic_max    MAXLONG
      79             : 
      80             : #define heim_base_exchange_pointer(t,v) InterlockedExchangePointer((t),(v))
      81             : 
      82             : #else
      83             : 
      84             : #define HEIM_BASE_NEED_ATOMIC_MUTEX 1
      85             : extern HEIMDAL_MUTEX _heim_base_mutex;
      86             : 
      87             : #define heim_base_atomic_type   unsigned int
      88             : 
      89             : static inline heim_base_atomic_type
      90           0 : heim_base_atomic_inc(heim_base_atomic_type *x)
      91             : {
      92             :     heim_base_atomic_type t;
      93             :     HEIMDAL_MUTEX_lock(&_heim_base_mutex);
      94           0 :     t = ++(*x);
      95             :     HEIMDAL_MUTEX_unlock(&_heim_base_mutex);
      96           0 :     return t;
      97             : }
      98             : 
      99             : static inline heim_base_atomic_type
     100           0 : heim_base_atomic_dec(heim_base_atomic_type *x)
     101             : {
     102             :     heim_base_atomic_type t;
     103             :     HEIMDAL_MUTEX_lock(&_heim_base_mutex);
     104           0 :     t = --(*x);
     105             :     HEIMDAL_MUTEX_unlock(&_heim_base_mutex);
     106           0 :     return t;
     107             : }
     108             : 
     109             : #define heim_base_atomic_max    UINT_MAX
     110             : 
     111             : #endif
     112             : 
     113             : /* tagged strings/object/XXX */
     114             : #define heim_base_is_tagged(x) (((uintptr_t)(x)) & 0x3)
     115             : 
     116             : #define heim_base_is_tagged_object(x) ((((uintptr_t)(x)) & 0x3) == 1)
     117             : #define heim_base_make_tagged_object(x, tid) \
     118             :     ((heim_object_t)((((uintptr_t)(x)) << 5) | ((tid) << 2) | 0x1))
     119             : #define heim_base_tagged_object_tid(x) ((((uintptr_t)(x)) & 0x1f) >> 2)
     120             : #define heim_base_tagged_object_value(x) (((uintptr_t)(x)) >> 5)
     121             : 
     122             : /*
     123             :  *
     124             :  */
     125             : 
     126             : #undef HEIMDAL_NORETURN_ATTRIBUTE
     127             : #define HEIMDAL_NORETURN_ATTRIBUTE
     128             : #undef HEIMDAL_PRINTF_ATTRIBUTE
     129             : #define HEIMDAL_PRINTF_ATTRIBUTE(x)

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