-void ms2tv(const long unsigned n, struct timeval *tv);
-
-/* stat */
-enum {
- SI_STATUS_BAR, SI_STATUS, SI_NUM_PLAYED,
- SI_MTIME, SI_LENGTH_MIN, SI_LENGTH_SEC,
- SI_FILE_SIZE, SI_STATUS_FLAGS, SI_FORMAT,
- SI_SCORE, SI_AUDIO_INFO1, SI_AUDIO_INFO2,
- SI_AUDIO_INFO3, SI_DBINFO1, SI_DBINFO2,
- SI_DBINFO3, SI_DECODER_FLAGS, SI_AUDIOD_STATUS,
- SI_PLAY_TIME, SI_UPTIME, SI_OFFSET,
- SI_LENGTH, SI_STREAM_START, SI_CURRENT_TIME,
- SI_AUDIOD_UPTIME, SI_DBTOOL,
-};
-#define NUM_STAT_ITEMS (SI_DBTOOL + 1)
-int stat_line_valid(const char *);
-void stat_client_write(char *msg);
-int stat_client_add(int);
-void dump_empty_status(void);
-unsigned for_each_line(char *, int, void (*)(char *), int);
-
-struct stat_item_data {
- char *prefix, *postfix;
- unsigned x, y, len;
- int fg, bg, align;
-};
-
-/* gui_theme */
-struct gui_theme {
- char *name;
- char *author;
- int sb_fg, sb_bg;
- int cmd_fg, cmd_bg;
- int output_fg, output_bg;
- int msg_fg, msg_bg;
- int err_msg_fg, err_msg_bg;
- int welcome_fg, welcome_bg;
- int sep_fg, sep_bg;
- char *sep_str;
- int default_fg, default_bg;
-
- int top_lines_default, top_lines_min;
- int lines_min, cols_min;
- struct stat_item_data data[NUM_STAT_ITEMS];
-};
-
-void init_theme(int i, struct gui_theme *);
-void next_theme(struct gui_theme *);
-void prev_theme(struct gui_theme *);
-#define LEFT 1
-#define RIGHT 2
-#define CENTER 3
-
-
-__printf_2_3 void para_log(int, char*, ...);
-
-/* taken from printf man page */
-#define PARA_VSPRINTF(fmt, p) \
-{ \
- int n, 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); \
- } \
+void ms2tv(long unsigned n, struct timeval *tv);
+void compute_chunk_time(long unsigned chunk_num,
+ struct timeval *chunk_tv, struct timeval *stream_start,
+ struct timeval *result);
+struct timeval *clock_get_realtime(struct timeval *tv);
+
+/** The enum of all status items. */
+enum status_items {STATUS_ITEM_ENUM NUM_STAT_ITEMS};
+extern const char *status_item_list[];
+/** Loop over each status item. */
+#define FOR_EACH_STATUS_ITEM(i) for (i = 0; i < NUM_STAT_ITEMS; i++)
+int for_each_stat_item(char *item_buf, size_t num_bytes,
+ int (*item_handler)(int, char *));
+
+
+/**
+ * Return a random non-negative integer in an interval.
+ *
+ * \param max Determines maximal possible return value.
+ *
+ * \return An integer between zero and \p max - 1, inclusively.
+ */
+_static_inline_ long int para_random(unsigned max)
+{
+ return ((max + 0.0) * (random() / (RAND_MAX + 1.0)));
+}
+
+/**
+ * Simple sanity check for I/O vectors.
+ *
+ * \param iov Pointer to the I/O vector to check.
+ *
+ * \return True if \a iov points to a non-empty buffer.
+ */
+_static_inline_ bool iov_valid(const struct iovec *iov)
+{
+ return iov && iov->iov_len > 0 && iov->iov_base;