git.m6w6.name Git - m6w6/libmemcached/blob - libmemcached/watchpoint.h

   1 /*  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
   2  *
   3  *  Libmemcached library
   4  *
   5  *  Copyright (C) 2011 Data Differential, http://datadifferential.com/
   6  *  Copyright (C) 2006-2009 Brian Aker 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 are
  10  *  met:
  11  *
  12  *      * Redistributions of source code must retain the above copyright
  13  *  notice, this list of conditions and the following disclaimer.
  14  *
  15  *      * Redistributions in binary form must reproduce the above
  16  *  copyright notice, this list of conditions and the following disclaimer
  17  *  in the documentation and/or other materials provided with the
  18  *  distribution.
  19  *
  20  *      * The names of its contributors may not be used to endorse or
  21  *  promote products derived from this software without specific prior
  22  *  written permission.
  23  *
  24  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  25  *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  26  *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  27  *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  28  *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  29  *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  30  *  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  31  *  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  32  *  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  33  *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  34  *  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  35  *
  36  */
  37
  38 #pragma once
  39
  40 /* Some personal debugging functions */
  41 #if defined(DEBUG)
  42
  43 #ifdef TARGET_OS_LINUX
  44 static inline void libmemcached_stack_dump(void)
  45 {
  46   void *array[10];
  47   int size;
  48   char **strings;
  49
  50   size= backtrace(array, 10);
  51   strings= backtrace_symbols(array, size);
  52
  53   fprintf(stderr, "Found %d stack frames.\n", size);
  54
  55   for (int x= 0; x < size; x++)
  56     fprintf(stderr, "%s\n", strings[x]);
  57
  58   free (strings);
  59
  60   fflush(stderr);
  61 }
  62
  63 #elif defined(__sun)
  64 #include <ucontext.h>
  65
  66 static inline void libmemcached_stack_dump(void)
  67 {
  68    fflush(stderr);
  69    printstack(fileno(stderr));
  70 }
  71
  72 #else
  73
  74 static inline void libmemcached_stack_dump(void)
  75 { }
  76
  77 #endif // libmemcached_stack_dump()
  78
  79 #include <assert.h>
  80
  81 #define WATCHPOINT do { fprintf(stderr, "\nWATCHPOINT %s:%d (%s)\n", __FILE__, __LINE__,__func__);fflush(stdout); } while (0)
  82 #define WATCHPOINT_ERROR(A) do {fprintf(stderr, "\nWATCHPOINT %s:%d %s\n", __FILE__, __LINE__, memcached_strerror(NULL, A));fflush(stdout); } while (0)
  83 #define WATCHPOINT_IFERROR(A) do { if(A != MEMCACHED_SUCCESS)fprintf(stderr, "\nWATCHPOINT %s:%d %s\n", __FILE__, __LINE__, memcached_strerror(NULL, A));fflush(stdout); } while (0)
  84 #define WATCHPOINT_STRING(A) do { fprintf(stderr, "\nWATCHPOINT %s:%d (%s) %s\n", __FILE__, __LINE__,__func__,A);fflush(stdout); } while (0)
  85 #define WATCHPOINT_STRING_LENGTH(A,B) do { fprintf(stderr, "\nWATCHPOINT %s:%d (%s) %.*s\n", __FILE__, __LINE__,__func__,(int)B,A);fflush(stdout); } while (0)
  86 #define WATCHPOINT_NUMBER(A) do { fprintf(stderr, "\nWATCHPOINT %s:%d (%s) %lu\n", __FILE__, __LINE__,__func__,(unsigned long)(A));fflush(stdout); } while (0)
  87 #define WATCHPOINT_LABELED_NUMBER(A,B) do { fprintf(stderr, "\nWATCHPOINT %s:%d (%s) %s:%lu\n", __FILE__, __LINE__,__func__,(A),(unsigned long)(B));fflush(stdout); } while (0)
  88 #define WATCHPOINT_IF_LABELED_NUMBER(A,B,C) do { if(A) {fprintf(stderr, "\nWATCHPOINT %s:%d (%s) %s:%lu\n", __FILE__, __LINE__,__func__,(B),(unsigned long)(C));fflush(stdout);} } while (0)
  89 #define WATCHPOINT_ERRNO(A) do { fprintf(stderr, "\nWATCHPOINT %s:%d (%s) %s\n", __FILE__, __LINE__,__func__, strerror(A));fflush(stdout); } while (0)
  90 #define WATCHPOINT_ASSERT_PRINT(A,B,C) do { if(!(A)){fprintf(stderr, "\nWATCHPOINT ASSERT %s:%d (%s) ", __FILE__, __LINE__,__func__);fprintf(stderr, (B),(C));fprintf(stderr,"\n");fflush(stdout); libmemcached_stack_dump(); } assert((A)); } while (0)
  91 #define WATCHPOINT_ASSERT(A) do { if (! (A)) {libmemcached_stack_dump();} assert((A)); } while (0)
  92 #define WATCHPOINT_ASSERT_INITIALIZED(A) do { if (! (A)) { libmemcached_stack_dump(); } assert(memcached_is_initialized((A))); } while (0);
  93 #define WATCHPOINT_SET(A) do { A; } while(0);
  94
  95 #else
  96
  97 #define WATCHPOINT
  98 #define WATCHPOINT_ERROR(A)
  99 #define WATCHPOINT_IFERROR(__memcached_return_t) (void)(__memcached_return_t)
 100 #define WATCHPOINT_STRING(A)
 101 #define WATCHPOINT_NUMBER(A)
 102 #define WATCHPOINT_LABELED_NUMBER(A,B)
 103 #define WATCHPOINT_IF_LABELED_NUMBER(A,B,C)
 104 #define WATCHPOINT_ERRNO(A)
 105 #define WATCHPOINT_ASSERT_PRINT(A,B,C)
 106 #define WATCHPOINT_ASSERT(A) (void)(A)
 107 #define WATCHPOINT_ASSERT_INITIALIZED(A)
 108 #define WATCHPOINT_SET(A)
 109
 110 #endif /* DEBUG */