X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=para.h;h=3b9559e1beb93062c7cd7cb1cd0daace402b85ae;hp=3121850f87ae27581d45da79e0f3ae9d57eced78;hb=3e6bba778c867a8977704b5c15e52fa18fb0d900;hpb=be9f7c9b442f7b723427a79f85774d5fa7718425

diff --git a/para.h b/para.h
index 3121850f..3b9559e1 100644
--- a/para.h
+++ b/para.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 1997-2011 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 1997-2012 Andre Noll <maan@systemlinux.org>
  *
  * Licensed under the GPL v2. For licencing details see COPYING.
  */
@@ -25,6 +25,7 @@
 #include <sys/un.h> /* needed by create_pf_socket */
 #include <string.h>
 #include <assert.h>
+#include <stdbool.h>
 #include "gcc-compat.h"
 
 /** used in various contexts */
@@ -49,15 +50,19 @@
 	typeof(x) _x = (x); \
 	_x > 0? _x : -_x; })
 
+
+extern __printf_2_3 void (*para_log)(int, const char*, ...);
 /**
  * Define a standard log function that always writes to stderr.
  *
+ * \param funcname The name of the function to be defined.
+ *
  * \param loglevel_barrier If the loglevel of the current message
  * is less than that, the message is going to be ignored.
  *
  */
-#define INIT_STDERR_LOGGING(loglevel_barrier) \
-	__printf_2_3 void para_log(int ll, const char* fmt,...) \
+#define DEFINE_STDERR_LOGGER(funcname, loglevel_barrier) \
+	__printf_2_3 void funcname(int ll, const char* fmt,...) \
 	{ \
 		va_list argp; \
 		if (ll < loglevel_barrier) \
@@ -66,6 +71,9 @@
 		vfprintf(stderr, fmt, argp); \
 		va_end(argp); \
 	}
+#define INIT_STDERR_LOGGING(loglevel_barrier) \
+	DEFINE_STDERR_LOGGER(stderr_log, loglevel_barrier); \
+	__printf_2_3 void (*para_log)(int, const char*, ...) = stderr_log;
 
 /** Sent by para_client to initiate the authentication procedure. */
 #define AUTH_REQUEST_MSG "auth rsa "
@@ -105,40 +113,9 @@ extern const char *status_item_list[];
 int for_each_stat_item(char *item_buf, size_t num_bytes,
 	int (*item_handler)(int, char *));
 
-__printf_2_3 void para_log(int, const char*, ...);
-
-/**
- * Write a log message to a dynamically allocated string.
- *
- * \param fmt Usual format string.
- * \param p Result pointer.
- *
- * \sa printf(3). */
-#define PARA_VSPRINTF(fmt, p) \
-{ \
-	int n; \
-	size_t size = 100; \
-	p = para_malloc(size); \
-	while (1) { \
-		va_list ap; \
-		/* Try to print in the allocated space. */ \
-		va_start(ap, fmt); \
-		n = vsnprintf(p, size, fmt, ap); \
-		va_end(ap); \
-		/* If that worked, return the string. */ \
-		if (n > -1 && n < size) \
-			break; \
-		/* Else try again with more space. */ \
-		if (n > -1) /* glibc 2.1 */ \
-			size = n + 1; /* precisely what is needed */ \
-		else /* glibc 2.0 */ \
-			size *= 2; /* twice the old size */ \
-		p = para_realloc(p, size); \
-	} \
-}
 
 /**
- *  Return a random non-negative integer in an interval.
+ * Return a random non-negative integer in an interval.
  *
  * \param max Determines maximal possible return value.
  *
@@ -176,7 +153,7 @@ _static_inline_ long int para_random(unsigned max)
  */
 #define EXPR_BUILD_ASSERT(cond) (sizeof(char [1 - 2 * !(cond)]) - 1)
 
-/* &a[0] degrades to a pointer: a different type from an array */
+/** &a[0] degrades to a pointer: a different type from an array */
 #define _array_size_chk(arr) EXPR_BUILD_ASSERT(\
 	!__builtin_types_compatible_p(typeof(arr), typeof(&(arr)[0])))
 /** Get the size of an array */
@@ -200,11 +177,15 @@ _static_inline_ long int para_random(unsigned max)
 /** Data that indicates an eof-condition for a fec-encoded stream. */
 #define FEC_EOF_PACKET "\xec\x0d\xcc\xfe\0\0\0\0" \
 	"\0\0\0\0\0\0\0\0" "\0\0\0\0\0\0\0\0" "\0\0\0\0\0\0\0\0"
+/** The number of bytes of the \a FEC_EOF_PACKET. */
 #define FEC_EOF_PACKET_LEN 32
 
 /** Used to avoid a shortcoming in vim's syntax highlighting. */
 #define EMBRACE(...) { __VA_ARGS__}
 
+/** A nice cup of STFU for Mr gcc. */
+#define do_nothing do {/* nothing */} while (0)
+
 /**
  * The sample formats supported by paraslash.
  *
@@ -225,10 +206,12 @@ _static_inline_ long int para_random(unsigned max)
 	SAMPLE_FORMAT(SF_U16_LE, "16 bit unsigned, little endian"), \
 	SAMPLE_FORMAT(SF_U16_BE, "16 bit unsigned, big endian"), \
 
+/** \cond sample_format */
 #define SAMPLE_FORMAT(a, b) a
 enum sample_format {SAMPLE_FORMATS};
 #undef SAMPLE_FORMAT
 #define SAMPLE_FORMAT(a, b) b
+/** \endcond sample_format */
 
 /** Debug loglevel, gets really noisy. */
 #define LL_DEBUG 0
@@ -250,7 +233,7 @@ enum sample_format {SAMPLE_FORMATS};
 /** Log messages with lower priority than that will not be compiled in. */
 #define COMPILE_TIME_LOGLEVEL 0
 
-/** \cond */
+/** \cond log */
 #if LL_DEBUG >= COMPILE_TIME_LOGLEVEL
 #define PARA_DEBUG_LOG(f,...) para_log(LL_DEBUG, "%s: " f, __FUNCTION__, ## __VA_ARGS__)
 #else
@@ -292,4 +275,4 @@ enum sample_format {SAMPLE_FORMATS};
 #else
 #define PARA_EMERG_LOG(...)
 #endif
-/** \endcond */
+/** \endcond log */