more work

git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@17 fefdeb5f-60dc-0310-8127-8f9354f1896f

src/memblock.c

@@ -1,15 +1,22 @@
+#include <stdio.h>
 #include <stdlib.h>
 #include <assert.h>
 #include <string.h>
+#include <sys/time.h>
+#include <time.h>
 
 #include "memblock.h"
 
+unsigned n_blocks = 0;
+
 struct memblock *memblock_new(size_t length) {
     struct memblock *b = malloc(sizeof(struct memblock)+length);
     b->type = MEMBLOCK_APPENDED;
     b->ref = 1;
     b->length = length;
     b->data = b+1;
+    n_blocks++;
+    timerclear(&b->stamp);
     return b;
 }
 
@@ -19,6 +26,8 @@ struct memblock *memblock_new_fixed(void *d, size_t length) {
     b->ref = 1;
     b->length = length;
     b->data = d;
+    n_blocks++;
+    timerclear(&b->stamp);
     return b;
 }
 
@@ -28,6 +37,8 @@ struct memblock *memblock_new_dynamic(void *d, size_t length) {
     b->ref = 1;
     b->length = length;
     b->data = d;
+    n_blocks++;
+    timerclear(&b->stamp);
     return b;
 }
 
@@ -45,6 +56,7 @@ void memblock_unref(struct memblock*b) {
         if (b->type == MEMBLOCK_DYNAMIC)
             free(b->data);
         free(b);
+        n_blocks--;
     }
 }
 
@@ -65,3 +77,29 @@ void memblock_unref_fixed(struct memblock *b) {
     b->type = MEMBLOCK_DYNAMIC;
 }
 
+void memblock_stamp(struct memblock*b) {
+    assert(b);
+    gettimeofday(&b->stamp, NULL);
+}
+
+uint32_t memblock_age(struct memblock*b) {
+    assert(b);
+    struct timeval tv;
+    uint32_t r;
+
+    if (b->stamp.tv_sec == 0)
+        return (suseconds_t) -1;
+
+    gettimeofday(&tv, NULL);
+
+    /*fprintf(stderr, "memblock: (%lu,%lu) -- (%lu,%lu)\r", b->stamp.tv_sec, b->stamp.tv_usec, tv.tv_sec, tv.tv_usec);*/
+    
+    r = (tv.tv_sec-b->stamp.tv_sec) * 1000000;
+
+    if (tv.tv_usec >= b->stamp.tv_usec)
+        r += tv.tv_usec - b->stamp.tv_usec;
+    else
+        r -= b->stamp.tv_usec - tv.tv_usec;
+
+    return r;
+}