ceph/src/test/libcephfs/multiclient.cc

   1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab
   3 /*
   4  * Ceph - scalable distributed file system
   5  *
   6  * Copyright (C) 2011 New Dream Network
   7  *
   8  * This is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License version 2.1, as published by the Free Software
  11  * Foundation.  See file COPYING.
  12  *
  13  */
  14
  15 #include "gtest/gtest.h"
  16 #include "include/cephfs/libcephfs.h"
  17 #include <errno.h>
  18 #include <fcntl.h>
  19 #include <unistd.h>
  20 #include <sys/types.h>
  21 #include <sys/stat.h>
  22 #include <dirent.h>
  23 #include <sys/xattr.h>
  24
  25 TEST(LibCephFS, MulticlientSimple) {
  26   struct ceph_mount_info *ca, *cb;
  27   ASSERT_EQ(ceph_create(&ca, NULL), 0);
  28   ASSERT_EQ(ceph_conf_read_file(ca, NULL), 0);
  29   ASSERT_EQ(0, ceph_conf_parse_env(ca, NULL));
  30   ASSERT_EQ(ceph_mount(ca, NULL), 0);
  31
  32   ASSERT_EQ(ceph_create(&cb, NULL), 0);
  33   ASSERT_EQ(ceph_conf_read_file(cb, NULL), 0);
  34   ASSERT_EQ(0, ceph_conf_parse_env(cb, NULL));
  35   ASSERT_EQ(ceph_mount(cb, NULL), 0);
  36
  37   char name[20];
  38   snprintf(name, sizeof(name), "foo.%d", getpid());
  39   int fda = ceph_open(ca, name, O_CREAT|O_RDWR, 0644);
  40   ASSERT_LE(0, fda);
  41   int fdb = ceph_open(cb, name, O_CREAT|O_RDWR, 0644);
  42   ASSERT_LE(0, fdb);
  43
  44   char bufa[4] = "foo";
  45   char bufb[4];
  46
  47   for (int i=0; i<10; i++) {
  48     strcpy(bufa, "foo");
  49     ASSERT_EQ((int)sizeof(bufa), ceph_write(ca, fda, bufa, sizeof(bufa), i*6));
  50     ASSERT_EQ((int)sizeof(bufa), ceph_read(cb, fdb, bufb, sizeof(bufa), i*6));
  51     ASSERT_EQ(0, memcmp(bufa, bufb, sizeof(bufa)));
  52     strcpy(bufb, "bar");
  53     ASSERT_EQ((int)sizeof(bufb), ceph_write(cb, fdb, bufb, sizeof(bufb), i*6+3));
  54     ASSERT_EQ((int)sizeof(bufb), ceph_read(ca, fda, bufa, sizeof(bufb), i*6+3));
  55     ASSERT_EQ(0, memcmp(bufa, bufb, sizeof(bufa)));
  56   }
  57
  58   ceph_close(ca, fda);
  59   ceph_close(cb, fdb);
  60
  61   ceph_shutdown(ca);
  62   ceph_shutdown(cb);
  63 }
  64
  65 TEST(LibCephFS, MulticlientHoleEOF) {
  66   struct ceph_mount_info *ca, *cb;
  67   ASSERT_EQ(ceph_create(&ca, NULL), 0);
  68   ASSERT_EQ(ceph_conf_read_file(ca, NULL), 0);
  69   ASSERT_EQ(0, ceph_conf_parse_env(ca, NULL));
  70   ASSERT_EQ(ceph_mount(ca, NULL), 0);
  71
  72   ASSERT_EQ(ceph_create(&cb, NULL), 0);
  73   ASSERT_EQ(ceph_conf_read_file(cb, NULL), 0);
  74   ASSERT_EQ(0, ceph_conf_parse_env(cb, NULL));
  75   ASSERT_EQ(ceph_mount(cb, NULL), 0);
  76
  77   char name[20];
  78   snprintf(name, sizeof(name), "foo.%d", getpid());
  79   int fda = ceph_open(ca, name, O_CREAT|O_RDWR, 0644);
  80   ASSERT_LE(0, fda);
  81   int fdb = ceph_open(cb, name, O_CREAT|O_RDWR, 0644);
  82   ASSERT_LE(0, fdb);
  83
  84   ASSERT_EQ(3, ceph_write(ca, fda, "foo", 3, 0));
  85   ASSERT_EQ(0, ceph_ftruncate(ca, fda, 1000000));
  86
  87   char buf[4];
  88   ASSERT_EQ(2, ceph_read(cb, fdb, buf, sizeof(buf), 1000000-2));
  89   ASSERT_EQ(0, buf[0]);
  90   ASSERT_EQ(0, buf[1]);
  91
  92   ceph_close(ca, fda);
  93   ceph_close(cb, fdb);
  94
  95   ceph_shutdown(ca);
  96   ceph_shutdown(cb);
  97 }