<time.h>: define timespec_get, TIME_UTC, to support <threads.h> implementations

[pdclib] / platform / example / internals / _PDCLIB_config.h

diff --git a/platform/example/internals/_PDCLIB_config.h b/platform/example/internals/_PDCLIB_config.h
index 7e66178b96ea124ba029b3651e03dfc8739e976c..0163753dfbb64a6ced89bd8b2f8ff9f410265c17 100644 (file)
--- a/platform/example/internals/_PDCLIB_config.h
+++ b/platform/example/internals/_PDCLIB_config.h
@@ -27,12 +27,6 @@
 /* specific platforms, e.g. by swapping int instead of char.                  */
 #define _PDCLIB_memswp( i, j, size ) char tmp; do { tmp = *i; *i++ = *j; *j++ = tmp; } while ( --size );
 
-/* Define this to some compiler directive that can be written after the       */
-/* parameter list of a function declaration to indicate the function does     */
-/* never return. If your compiler does not support such a directive, define   */
-/* to nothing. (This is to avoid warnings with the exit functions under GCC.) */
-#define _PDCLIB_NORETURN __attribute__(( noreturn ))
-
 /* The maximum value that errno can be set to. This is used to set the size   */
 /* of the array in struct lconv (<locale.h>) holding error messages for the   */
 /* strerror() and perror() functions. (If you change this value because you   */
@@ -201,6 +195,19 @@ struct _PDCLIB_imaxdiv_t
 #define _PDCLIB_clock double
 #define _PDCLIB_CLOCKS_PER_SEC 1000000
 
+/* <time.h>: TIME_UTC
+ *
+ * The TIME_UTC parameter is passed to the timespec_get function in order to get
+ * the system time in UTC since an implementation defined epoch (not necessarily
+ * the same as that used for time_t). That said, on POSIX the obvious 
+ * implementation of timespec_get for TIME_UTC is to wrap 
+ * clock_gettime(CLOCK_REALTIME, ...), which is defined as time in UTC since the
+ * same epoch.
+ *
+ * This may be any non-zero integer value.
+ */
+#define _PDCLIB_TIME_UTC 1
+
 /* -------------------------------------------------------------------------- */
 /* Floating Point                                                             */
 /* -------------------------------------------------------------------------- */
@@ -274,13 +281,14 @@ typedef char * _PDCLIB_va_list;
    to an appropriate value. (Too small, and malloc() will call the kernel too
    often. Too large, and you will waste memory.)
 */
-#define _PDCLIB_PAGESIZE 4096
-
-/* Set this to the minimum memory node size. Any malloc() for a smaller size
-   will be satisfied by a malloc() of this size instead (to avoid excessive
-   fragmentation).
-*/
-#define _PDCLIB_MINALLOC 8
+#define _PDCLIB_MALLOC_PAGESIZE 4096
+#define _PDCLIB_MALLOC_ALIGN 16
+#define _PDCLIB_MALLOC_GRANULARITY 64*1024
+#define _PDCLIB_MALLOC_TRIM_THRESHOLD 2*1024*1024
+#define _PDCLIB_MALLOC_MMAP_THRESHOLD 256*1024
+#define _PDCLIB_MALLOC_RELEASE_CHECK_RATE 4095
+
+/* TODO: Better document these */
 
 /* I/O ---------------------------------------------------------------------- */