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#include <glusterfs/api/glfs.h>
#include <glusterfs/api/glfs-handles.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define WRITE_SIZE (128)
glfs_t *
setup_new_client(char *hostname, char *volname, char *log_fileile)
{
int ret = 0;
glfs_t *fs = NULL;
fs = glfs_new(volname);
if (!fs) {
fprintf(stderr, "\nglfs_new: returned NULL (%s)\n", strerror(errno));
goto error;
}
ret = glfs_set_volfile_server(fs, "tcp", hostname, 24007);
if (ret < 0) {
fprintf(stderr, "\nglfs_set_volfile_server failed ret:%d (%s)\n", ret,
strerror(errno));
goto error;
}
ret = glfs_set_logging(fs, log_fileile, 7);
if (ret < 0) {
fprintf(stderr, "\nglfs_set_logging failed with ret: %d (%s)\n", ret,
strerror(errno));
goto error;
}
ret = glfs_init(fs);
if (ret < 0) {
fprintf(stderr, "\nglfs_init failed with ret: %d (%s)\n", ret,
strerror(errno));
goto error;
}
return fs;
error:
return NULL;
}
int
write_something(glfs_t *fs)
{
glfs_fd_t *fd = NULL;
char *buf = NULL;
int ret = 0;
int j = 0;
fd = glfs_creat(fs, "filename", O_RDWR, 0644);
if (!fd) {
fprintf(stderr, "%s: (%p) %s\n", "filename", fd, strerror(errno));
return -1;
}
buf = (char *)malloc(WRITE_SIZE);
memset(buf, '-', WRITE_SIZE);
for (j = 0; j < 4; j++) {
ret = glfs_write(fd, buf, WRITE_SIZE, 0);
if (ret < 0) {
fprintf(stderr, "Write(%s): %d (%s)\n", "filename", ret,
strerror(errno));
return ret;
}
glfs_lseek(fd, 0, SEEK_SET);
}
return 0;
}
static int
volfile_change(const char *volname)
{
int ret = 0;
char *cmd = NULL, *cmd1 = NULL;
ret = asprintf(&cmd, "gluster volume set %s quick-read on", volname);
if (ret < 0) {
fprintf(stderr, "cannot construct cli command string (%s)",
strerror(errno));
return ret;
}
ret = asprintf(&cmd1, "gluster volume set %s quick-read off", volname);
if (ret < 0) {
fprintf(stderr, "cannot construct cli command string (%s)",
strerror(errno));
return ret;
}
ret = system(cmd);
if (ret < 0) {
fprintf(stderr, "quick-read off on (%s) failed", volname);
return ret;
}
ret = system(cmd1);
if (ret < 0) {
fprintf(stderr, "quick-read on on (%s) failed", volname);
return ret;
}
ret = system(cmd);
if (ret < 0) {
fprintf(stderr, "quick-read off on (%s) failed", volname);
return ret;
}
free(cmd);
free(cmd1);
return ret;
}
int
main(int argc, char *argv[])
{
int ret = 0;
glfs_t *fs = NULL;
char buf[100];
glfs_fd_t *fd = NULL;
if (argc != 4) {
fprintf(
stderr,
"Expect following args %s <hostname> <Vol> <log file location>\n",
argv[0]);
return -1;
}
fs = setup_new_client(argv[1], argv[2], argv[3]);
if (!fs)
goto error;
ret = volfile_change(argv[2]);
if (ret < 0)
goto error;
/* This is required as volfile change takes a while to reach this
* gfapi client and precess the graph change. Without this the issue
* cannot be reproduced as in cannot be tested.
*/
sleep(10);
ret = write_something(fs);
if (ret < 0)
goto error;
ret = glfs_fini(fs);
if (ret < 0) {
fprintf(stderr, "glfs_fini failed with ret: %d (%s)\n", ret,
strerror(errno));
goto error;
}
return 0;
error:
return -1;
}
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