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#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <glusterfs/api/glfs.h>
#include <glusterfs/api/glfs-handles.h>
#define VALIDATE_AND_GOTO_LABEL_ON_ERROR(func, ret, label) do { \
if (ret < 0) { \
fprintf (stderr, "%s : returned error %d (%s)\n", \
func, ret, strerror (errno)); \
goto label; \
} \
} while (0)
int
main (int argc, char *argv[])
{
int ret = -1;
int flags = O_RDWR|O_SYNC;
glfs_t *fs = NULL;
glfs_fd_t *fd1 = NULL;
glfs_fd_t *fd2 = NULL;
char *volname = NULL;
char *logfile = NULL;
char *hostname = NULL;
const char *filename = "file_tmp";
const char *buff = "An opinion should be the result of thought, "
"not a substitute for it.";
if (argc != 4) {
fprintf (stderr, "Invalid argument\n");
return 1;
}
hostname = argv[1];
volname = argv[2];
logfile = argv[3];
fs = glfs_new (volname);
if (!fs)
VALIDATE_AND_GOTO_LABEL_ON_ERROR ("glfs_new", ret, out);
ret = glfs_set_volfile_server (fs, "tcp", hostname, 24007);
VALIDATE_AND_GOTO_LABEL_ON_ERROR ("glfs_set_volfile_server", ret, out);
ret = glfs_set_logging (fs, logfile, 7);
VALIDATE_AND_GOTO_LABEL_ON_ERROR ("glfs_set_logging", ret, out);
ret = glfs_init (fs);
VALIDATE_AND_GOTO_LABEL_ON_ERROR ("glfs_init", ret, out);
fd1 = glfs_creat(fs, filename, flags, 0644);
if (fd1 == NULL) {
ret = -1;
VALIDATE_AND_GOTO_LABEL_ON_ERROR ("glfs_creat", ret, out);
}
ret = glfs_write (fd1, buff, strlen (buff), flags);
VALIDATE_AND_GOTO_LABEL_ON_ERROR ("glfs_write", ret, out);
fd2 = glfs_dup(fd1);
if (fd2 == NULL) {
ret = -1;
VALIDATE_AND_GOTO_LABEL_ON_ERROR ("glfs_dup", ret, out);
}
ret = glfs_lseek (fd2, 0, SEEK_SET);
VALIDATE_AND_GOTO_LABEL_ON_ERROR ("glfs_lseek", ret, out);
out:
if (fd1 != NULL)
glfs_close(fd1);
if (fd2 != NULL)
glfs_close(fd2);
if (fs) {
ret = glfs_fini(fs);
if (ret)
fprintf (stderr, "glfs_fini(fs) returned %d\n", ret);
}
return ret;
}
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