/*
- * 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.
*/
#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 */
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) \
vfprintf(stderr, fmt, argp); \
va_end(argp); \
}
+/**
+ * Define the standard log function and activate it.
+ *
+ * \param loglevel_barrier See \ref DEFINE_STDERR_LOGGER.
+ */
+#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 "
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.
*
*/
#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 */
/** 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.
*
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
/** 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
#else
#define PARA_EMERG_LOG(...)
#endif
-/** \endcond */
+/** \endcond log */