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#include <fcntl.h>
#include <unistd.h>
#include <time.h>
#include <limits.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <glusterfs/api/glfs.h>
#include <glusterfs/api/glfs-handles.h>
#define LOG_ERR(msg) do { \
fprintf (stderr, "%s : Error (%s)\n", msg, strerror (errno)); \
} while (0)
int cbk_complete = 0;
int cbk_ret_val = -1;
int
fill_iov (struct iovec *iov, char fillchar, int count)
{
int ret = -1;
iov->iov_base = calloc (count + 1, sizeof(fillchar));
if (iov->iov_base == NULL) {
return ret;
} else {
iov->iov_len = count;
ret = 0;
}
memset (iov->iov_base, fillchar, count);
memset (iov->iov_base + count, '\0', 1);
return ret;
}
glfs_t *
init_glfs (const char *hostname, const char *volname,
const char *logfile)
{
int ret = -1;
glfs_t *fs = NULL;
fs = glfs_new (volname);
if (!fs) {
LOG_ERR ("glfs_new failed");
return NULL;
}
ret = glfs_set_volfile_server (fs, "tcp", hostname, 24007);
if (ret < 0) {
LOG_ERR ("glfs_set_volfile_server failed");
goto out;
}
ret = glfs_set_logging (fs, logfile, 7);
if (ret < 0) {
LOG_ERR ("glfs_set_logging failed");
goto out;
}
ret = glfs_init (fs);
if (ret < 0) {
LOG_ERR ("glfs_init failed");
goto out;
}
ret = 0;
out:
if (ret) {
glfs_fini (fs);
fs = NULL;
}
return fs;
}
void
write_async_cbk (glfs_fd_t *fd, ssize_t ret, void *cookie)
{
if (ret < 0) {
LOG_ERR ("glfs_write failed");
}
cbk_ret_val = ret;
cbk_complete = 1;
}
int
write_async (glfs_t *fs, glfs_fd_t *glfd, int char_count)
{
ssize_t ret = -1;
int flags = O_RDWR;
const char *buff = "This is from my prog\n";
struct iovec iov = {0};
void *write_cookie = NULL;
void *read_cookie = NULL;
ret = fill_iov (&iov, 'a', char_count);
if (ret) {
LOG_ERR ("failed to create iov");
goto out;
}
write_cookie = strdup ("write_cookie");
ret = glfs_pwritev_async (glfd, &iov, 1, 0, flags, write_async_cbk,
&write_cookie);
out:
if (ret < 0) {
LOG_ERR ("glfs_pwritev async failed");
}
return ret;
}
int
main (int argc, char *argv[])
{
int ret = 0;
char *hostname = NULL;
char *volname = NULL;
char *logfile = NULL;
glfs_t *fs = NULL;
const char *filename = "glfs_test.txt";
int flags = (O_RDWR|O_CREAT);
glfs_fd_t *glfd = NULL;
int count = 200;
if (argc != 4) {
fprintf (stderr, "Invalid argument\n");
exit(1);
}
hostname = argv[1];
volname = argv[2];
logfile = argv[3];
fs = init_glfs (hostname, volname, logfile);
if (fs == NULL) {
LOG_ERR ("init_glfs failed");
return -1;
}
glfd = glfs_creat (fs, filename, flags, 0644);
if (glfd == NULL) {
LOG_ERR ("glfs_creat failed");
exit(1);
}
ret = write_async (fs, glfd, count);
if (ret) {
LOG_ERR ("glfs_test_function failed");
exit(1);
}
while (cbk_complete != 1) {
sleep(1);
}
ret = glfs_close (glfd);
if (ret < 0) {
LOG_ERR ("glfs close failed");
}
/*
* skipping fini
*/
if (cbk_ret_val == count)
return 0;
else
return -1;
}
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