Add Ben's test 44

diff --git a/test/test44.c b/test/test44.c
new file mode 100644 (file)
index 0000000..4f9e734
--- /dev/null
+++ b/test/test44.c
@@ -0,0 +1,67 @@
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/mman.h>
+
+int
+main(int argc, char *argv[])
+{
+#define CHUNKSIZE 8192
+#define CHUNKS1        3
+#define CHUNKS2        2
+#define CHUNKS (CHUNKS1+CHUNKS2)
+       int i, fd;
+       char *v[CHUNKS];
+#define STARTV 0x90000000
+       char *vaddr = (char *) STARTV;
+       ssize_t l;
+
+       printf("Test 44 ");
+       fflush(stdout);
+
+       for(i = 0; i < CHUNKS; i++) {
+               v[i] = mmap(vaddr, CHUNKSIZE, PROT_READ|PROT_WRITE, 0, -1, 0);
+               if(v[i] == MAP_FAILED) {
+                       perror("mmap");
+                       fprintf(stderr, "mmap failed\n");
+                       exit(1);
+               }
+               if(v[i] != vaddr) {
+                       fprintf(stderr, "mmap said 0x%p but i wanted 0x%p\n",
+                               v[i], vaddr);
+                       exit(1);
+               }
+               vaddr += CHUNKSIZE;
+       }
+
+#define DEV_ZERO "/dev/zero"
+       if((fd=open(DEV_ZERO, O_RDONLY)) < 0) {
+               perror("open");
+               fprintf(stderr, "open failed for %s\n", DEV_ZERO);
+               exit(1);
+       }
+
+#define TOTAL1 (CHUNKS1*CHUNKSIZE)
+       /* Make single read cross region boundary. */
+       if((l=read(fd, v[0], TOTAL1)) != TOTAL1) {
+               fprintf(stderr, "read %d but expected %d\n", l, TOTAL1);
+               exit(1);
+       }
+
+       /* Force single copy to cross region boundary. */
+       {
+               char *t;
+               t = v[CHUNKS1]+CHUNKSIZE-2;
+               if((l=read(fd, t, CHUNKSIZE)) != CHUNKSIZE) {
+                       fprintf(stderr, "read %d but expected %d\n", l, CHUNKSIZE);
+                       exit(1);
+               }
+       }
+
+       printf("ok\n");
+
+       exit(0);
+}
+