summaryrefslogtreecommitdiffstats
path: root/tests/basic/gfapi/upcall-cache-invalidate.c
blob: 13cca69da89f64a83530b83f7a5e20c5507a0daa (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
#include <fcntl.h>
#include <unistd.h>
#include <time.h>
#include <limits.h>
#include <alloca.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <glusterfs/api/glfs.h>
#include <glusterfs/api/glfs-handles.h>
int gfapi = 1;

#define LOG_ERR(func, ret) do { \
        if (ret != 0) {            \
                fprintf (stderr, "%s : returned error %d (%s)\n", \
                         func, ret, strerror (errno)); \
                goto out; \
        } else { \
                fprintf (stderr, "%s : returned %d\n", func, ret); \
        } \
        } while (0)

int
main (int argc, char *argv[])
{
        glfs_t    *fs = NULL;
        glfs_t    *fs2 = NULL;
        glfs_t    *fs_tmp = NULL;
        glfs_t    *fs_tmp2 = NULL;
        int        ret = 0, i;
        glfs_fd_t *fd = NULL;
        glfs_fd_t *fd2 = NULL;
        glfs_fd_t *fd_tmp = NULL;
        glfs_fd_t *fd_tmp2 = NULL;
        char       readbuf[32];
        char      *filename = "file_tmp";
        char      *writebuf = NULL;
        char      *vol_id  = NULL;
        unsigned int       cnt = 1;
        struct    callback_arg cbk;
        char      *logfile = NULL;
        char      *volname = NULL;
        struct callback_inode_arg *in_arg = NULL;

        cbk.reason = 0;

        if (argc != 3) {
                fprintf (stderr, "Invalid argument\n");
                exit(1);
        }

        volname = argv[1];
        logfile = argv[2];

        fs = glfs_new (volname);
        if (!fs) {
                fprintf (stderr, "glfs_new: returned NULL\n");
                return -1;
        }

        ret = glfs_set_volfile_server (fs, "tcp", "localhost", 24007);
        LOG_ERR("glfs_set_volfile_server", ret);

        ret = glfs_set_logging (fs, logfile, 7);
        LOG_ERR("glfs_set_logging", ret);

        ret = glfs_init (fs);
        LOG_ERR("glfs_init", ret);

        /* This does not block, but enables caching of events. Real
         * applications like NFS-Ganesha run this in a thread before activity
         * on the fs (through this instance) happens. */
        ret = glfs_h_poll_upcall(fs_tmp, &cbk);
        LOG_ERR ("glfs_h_poll_upcall", ret);
        cbk.reason = 0;

        fs2 = glfs_new (volname);
        if (!fs2) {
                fprintf (stderr, "glfs_new fs2: returned NULL\n");
                return 1;
        }

        ret = glfs_set_volfile_server (fs2, "tcp", "localhost", 24007);
        LOG_ERR("glfs_set_volfile_server-fs2", ret);

        ret = glfs_set_logging (fs2, logfile, 7);
        LOG_ERR("glfs_set_logging-fs2", ret);

        ret = glfs_init (fs2);
        LOG_ERR("glfs_init-fs2", ret);

        fd = glfs_creat(fs, filename, O_RDWR|O_SYNC, 0644);
        if (fd <= 0) {
                ret = -1;
                LOG_ERR ("glfs_creat", ret);
        }
        fprintf (stderr, "glfs-create fd - %d\n", fd);

        fd2 = glfs_open(fs2, filename, O_SYNC|O_RDWR|O_CREAT);
        if (fd2 <= 0) {
                ret = -1;
                LOG_ERR ("glfs_open-fs2", ret);
        }
        fprintf (stderr, "glfs-open fd2 - %d\n", fd2);

        do {
                if (cnt%2) {
                        fd_tmp = fd;
                        fs_tmp = fs;
                        fd_tmp2 = fd2;
                        fs_tmp2 = fs2;
                } else {
                        fd_tmp = fd2;
                        fs_tmp = fs2;
                        fd_tmp2 = fd;
                        fs_tmp2 = fs;
                }

                /* WRITE on fd_tmp */
                writebuf = malloc(10);
                if (writebuf) {
                        memcpy (writebuf, "abcd", 4);
                        ret = glfs_write (fd_tmp, writebuf, 4, 0);
                        if (ret <= 0)   {
                                ret = -1;
                                LOG_ERR ("glfs_write", ret);
                        } else {
                                fprintf (stderr,
                                         "glfs_write suceeded\n");
                        }
                        free(writebuf);
                } else {
                        fprintf (stderr,
                                 "Could not allocate writebuf\n");
                        return -1;
                }

                /* READ on fd_tmp2 */
                ret = glfs_lseek (fd_tmp2, 0, SEEK_SET);
                LOG_ERR ("glfs_lseek", ret);

                ret = glfs_pread (fd_tmp2, readbuf, 4, 0, 0);

                if (ret <= 0) {
                        ret = -1;
                        LOG_ERR ("glfs_pread", ret);
                } else {
                        fprintf (stderr, "glfs_read: %s\n", readbuf);
                }

                /* Open() fops seem to be not performed on server side until
                 * there are I/Os on that fd
                 */
                if (cnt > 2) {
                        ret = glfs_h_poll_upcall(fs_tmp, &cbk);
                        LOG_ERR ("glfs_h_poll_upcall", ret);
                        /* Expect 'GFAPI_INODE_INVALIDATE' upcall event. */
                        if (cbk.reason == GFAPI_INODE_INVALIDATE) {
                                in_arg = cbk.event_arg;
                                fprintf (stderr, " upcall event type - %d,"
                                         " object(%p), flags(%d), "
                                         " expire_time_attr(%d)\n" ,
                                         cbk.reason, in_arg->object,
                                         in_arg->flags,
                                         in_arg->expire_time_attr);
                                ret = glfs_h_close (in_arg->object);
                                LOG_ERR ("glfs_h_close", ret);
                                free (in_arg);
                        } else {
                                fprintf (stderr,
                                         "Dint receive upcall notify event");
                                ret = -1;
                                goto err;
                        }
                }

                sleep(5);
        } while (++cnt < 5);

err:
        glfs_close(fd);
        LOG_ERR ("glfs_close", ret);

        glfs_close(fd2);
        LOG_ERR ("glfs_close-fd2", ret);

out:
        if (fs) {
                ret = glfs_fini(fs);
                fprintf (stderr, "glfs_fini(fs) returned %d \n", ret);
        }

        if (fs2) {
                ret = glfs_fini(fs2);
                fprintf (stderr, "glfs_fini(fs2) returned %d \n", ret);
        }

        if (ret)
                exit(1);
        exit(0);
}