[svn] Move extern declarations to .h files.

[wget] / src / wget.h

diff --git a/src/wget.h b/src/wget.h
index aa133ccd540fc12dad60cba5536302922daca829..6a0756b0acdda251c883b57e009cc2ff2ba7810e 100644 (file)
--- a/src/wget.h
+++ b/src/wget.h
@@ -40,21 +40,15 @@ so, delete this exception statement from your version.  */
 # define NDEBUG
 #endif
 
-#ifndef PARAMS
-# if PROTOTYPES
-#  define PARAMS(args) args
-# else
-#  define PARAMS(args) ()
-# endif
-#endif
-
 /* `gettext (FOO)' is long to write, so we use `_(FOO)'.  If NLS is
    unavailable, _(STRING) simply returns STRING.  */
 #ifdef HAVE_NLS
 # define _(string) gettext (string)
 # ifdef HAVE_LIBINTL_H
 #  include <libintl.h>
-# endif /* HAVE_LIBINTL_H */
+# else  /* not HAVE_LIBINTL_H */
+   const char *gettext ();
+# endif /* not HAVE_LIBINTL_H */
 #else  /* not HAVE_NLS */
 # define _(string) (string)
 #endif /* not HAVE_NLS */
@@ -91,23 +85,39 @@ so, delete this exception statement from your version.  */
 /* locale independent replacement for ctype.h */
 #include "safe-ctype.h"
 
-#define DO_NOTHING do {} while (0)
+/* Conditionalize the use of GCC's __attribute__((format)) and
+   __builtin_expect features using macros.  */
 
-/* Print X if debugging is enabled; a no-op otherwise.  */
-#ifdef ENABLE_DEBUG
-# define DEBUGP(x) do { if (opt.debug) { debug_logprintf x; } } while (0)
-#else  /* not ENABLE_DEBUG */
-# define DEBUGP(x) DO_NOTHING
-#endif /* not ENABLE_DEBUG */
-
-#ifdef __GNUC__
+#if defined(__GNUC__) && __GNUC__ >= 3
 # define GCC_FORMAT_ATTR(a, b) __attribute__ ((format (printf, a, b)))
-#else  /* not __GNUC__ */
+# define LIKELY(exp)   __builtin_expect (!!(exp), 1)
+# define UNLIKELY(exp) __builtin_expect ((exp), 0)
+#else
 # define GCC_FORMAT_ATTR(a, b)
-#endif /* not __GNUC__ */
+# define LIKELY(exp)   (exp)
+# define UNLIKELY(exp) (exp)
+#endif
+
+/* Execute the following statement if debugging is both enabled at
+   compile-time and requested at run-time; a no-op otherwise.  */
+
+#ifdef ENABLE_DEBUG
+# define IF_DEBUG if (UNLIKELY (opt.debug))
+#else
+# define IF_DEBUG if (0)
+#endif
+
+/* Print ARGS if debugging is enabled and requested, otherwise do
+   nothing.  This must be called with an extra level of parentheses
+   because it's not possible to pass a variable number of arguments to
+   a macro (in portable C89).  ARGS are like arguments to printf.  */
+
+#define DEBUGP(args) do { IF_DEBUG { debug_logprintf args; } } while (0)
+
+/* Define an integer type that works for file sizes, content lengths,
+   and such.  Normally we could just use off_t, but off_t is always
+   32-bit on Windows.  */
 
-/* Define an integer type that works for LFS.  off_t would be perfect
-   for this, but off_t is always 32-bit under Windows.  */
 #ifndef WINDOWS
 typedef off_t wgint;
 # define SIZEOF_WGINT SIZEOF_OFF_T
@@ -124,6 +134,25 @@ typedef off_t wgint;
 # endif
 #endif
 
+/* Now define a large integral type useful for storing sizes of *sums*
+   of downloads, such as the value of the --quota option.  This should
+   be a type able to hold 2G+ values even on systems without large
+   file support.  (It is useful to limit Wget's download quota to say
+   10G even if a single file cannot be that large.)
+
+   To make sure we get the largest size possible, we use `double' on
+   systems without a 64-bit integral type.  (Since it is used in very
+   few places in Wget, this is acceptable.)  */
+
+#if SIZEOF_WGINT >= 8
+/* just use wgint, which we already know how to print */
+typedef wgint SUM_SIZE_INT;
+# define with_thousand_seps_sum with_thousand_seps
+#else
+/* On systems without LFS, use double, which buys us integers up to 2^53. */
+typedef double SUM_SIZE_INT;
+#endif
+
 #include "options.h"
 
 /* Everything uses this, so include them here directly.  */
@@ -211,9 +240,15 @@ typedef off_t wgint;
     (sizevar) = DR_newsize;                                            \
   }                                                                    \
   if (DR_newsize)                                                      \
-    basevar = (type *)xrealloc (basevar, DR_newsize * sizeof (type));  \
+    basevar = xrealloc (basevar, DR_newsize * sizeof (type));          \
 } while (0)
 
+/* Used to print pointers (usually for debugging).  Print pointers
+   using printf ("%0*lx", PTR_FORMAT (p)).  (%p is too unpredictable;
+   some implementations prepend 0x, while some don't, and most don't
+   0-pad the address.)  */
+#define PTR_FORMAT(p) (int) (2 * sizeof (void *)), (unsigned long) (p)
+
 extern const char *exec_name;
 \f
 /* Document type ("dt") flags */
@@ -244,8 +279,7 @@ typedef enum
   CONTNOTSUPPORTED, RETRUNNEEDED, RETRFINISHED, READERR, TRYLIMEXC,
   URLBADPATTERN, FILEBADFILE, RANGEERR, RETRBADPATTERN,
   RETNOTSUP, ROBOTSOK, NOROBOTS, PROXERR, AUTHFAILED,
-  QUOTEXC, WRITEFAILED,
-  SSLERRCERTFILE,SSLERRCERTKEY,SSLERRCTXCREATE
+  QUOTEXC, WRITEFAILED, SSLINITFAILED
 } uerr_t;
 
 #endif /* WGET_H */