Test for toku_os_pwrite to see if it can write beyond 4GB. Addresses #1519.

git-svn-id: file:///svn/toku/tokudb@9777 c7de825b-a66e-492c-adef-691d508d4ae1

newbrt/tests/Makefile

@@ -84,6 +84,7 @@ REGRESSION_TESTS_RAW = \
 	memtest \
 	omt-cursor-test \
 	omt-test \
+	pwrite4g \
 	shortcut \
 	test1305 \
 	test1308a \

newbrt/tests/pwrite4g.c

+/* Verify that toku_os_pwrite does the right thing when writing beyond 4GB.  */
+#include <fcntl.h>
+#include "../toku_include/toku_portability.h"
+#include <assert.h>
+
+int main (int argc __attribute__((__unused__)), char *argv[] __attribute__((__unused__))) {
+    char fname[] = "pwrite4g.data";
+    int r = unlink(fname);
+    assert(r==0);
+    int fd = open(fname, O_RDWR | O_CREAT | O_BINARY, S_IRWXU|S_IRWXG|S_IRWXO);
+    assert(fd>=0);
+    char buf[] = "hello";
+    r = toku_os_pwrite(fd, buf, sizeof(buf), (1LL<<32)+100);
+    assert(r==sizeof(buf));
+    r = close(fd);
+    assert(r==0);
+    struct stat statbuf;
+    r = stat(fname, &statbuf);
+    assert(r==0);
+    assert(statbuf.st_size > 100 + (signed)sizeof(buf));
+    return 0;
+}