[pulseaudio-commits] r1742 - /branches/lennart/src/pulsecore/macro.h

[svnmailer-noreply at 0pointer.de]

Author: lennart
Date: Sun Sep  2 22:34:57 2007
New Revision: 1742

URL: http://0pointer.de/cgi-bin/viewcvs.cgi?rev=3D1742&root=3Dpulseaudio&vi=
ew=3Drev
Log:
add a couple of macros for memory page alignment

Modified:
    branches/lennart/src/pulsecore/macro.h

Modified: branches/lennart/src/pulsecore/macro.h
URL: http://0pointer.de/cgi-bin/viewcvs.cgi/branches/lennart/src/pulsecore/=
macro.h?rev=3D1742&root=3Dpulseaudio&r1=3D1741&r2=3D1742&view=3Ddiff
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--- branches/lennart/src/pulsecore/macro.h (original)
+++ branches/lennart/src/pulsecore/macro.h Sun Sep  2 22:34:57 2007
@@ -25,14 +25,38 @@
 ***/
 =

 #include <sys/types.h>
+#include <unistd.h>
 #include <assert.h>
+#include <limits.h>
+#include <unistd.h>  =

+
 #include <pulsecore/log.h>
+
+#if defined(PAGE_SIZE)
+#define PA_PAGE_SIZE ((size_t) PAGE_SIZE)
+#elif defined(PAGESIZE)
+#define PA_PAGE_SIZE ((size_t) PAGESIZE)
+#elif defined(HAVE_SYSCONF)
+#define PA_PAGE_SIZE ((size_t) (sysconf(_SC_PAGE_SIZE)))
+#else
+/* Let's hope it's like x86. */
+#define PA_PAGE_SIZE ((size_t) 4096)
+#endif
 =

 static inline size_t pa_align(size_t l) {
     return (((l + sizeof(void*) - 1) / sizeof(void*)) * sizeof(void*));
 }
+#define PA_ALIGN(x) (pa_align(x))
 =

-#define PA_ALIGN(x) (pa_align(x))
+static inline void* pa_page_align_ptr(const void *p) {
+    return (void*) (((size_t) p) & ~(PA_PAGE_SIZE-1));
+}
+#define PA_PAGE_ALIGN_PTR(x) (pa_page_align_ptr(x))
+
+static inline size_t pa_page_align(size_t l) {
+    return l & ~(PA_PAGE_SIZE-1);
+}
+#define PA_PAGE_ALIGN(x) (pa_page_align(x))
 =

 #define PA_ELEMENTSOF(x) (sizeof(x)/sizeof((x)[0]))
 =