compat/debug.h

   1 /*
   2  * Copyright (C) 1996-2023 The Squid Software Foundation and contributors
   3  *
   4  * Squid software is distributed under GPLv2+ license and includes
   5  * contributions from numerous individuals and organizations.
   6  * Please see the COPYING and CONTRIBUTORS files for details.
   7  */
   8
   9 #ifndef COMPAT_DEBUG_H
  10 #define COMPAT_DEBUG_H
  11
  12 /*
  13  * A debug method for use of external helpers and tools.
  14  * It shunts the debug messages down stderr for logging by Squid
  15  * or display to the user instead of corrupting the stdout data stream.
  16  */
  17 #if HAVE_UNISTD_H
  18 #include <unistd.h>
  19 #endif
  20
  21 /* Debugging stuff */
  22
  23 SQUIDCEXTERN int debug_enabled;
  24
  25 /* the macro overload style is really a gcc-ism */
  26 #if defined(__GNUC__) || defined(__SUNPRO_CC)
  27
  28 #define debug(X...) \
  29                      if (debug_enabled) { \
  30                          fprintf(stderr, "%s(%d): pid=%ld :", __FILE__, __LINE__, static_cast<long>(getpid())); \
  31                          fprintf(stderr,X); \
  32                      } else (void)0
  33
  34 #define ndebug(content) ndebug_(__FILE__, __LINE__, content)
  35 #define ndebug_(file, line, content) if (debug_enabled) { \
  36     std::cerr << file << '(' << line << ')' << ": pid=" << getpid() << ':' \
  37         << content << std::endl; \
  38     } else (void)0
  39
  40 #else /* __GNUC__ || __SUNPRO_CC */
  41
  42 /* non-GCC compilers can't do the above macro define yet. */
  43 void debug(const char *format,...);
  44 #endif
  45
  46 #endif /* COMPAT_DEBUG_H */
  47