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#include <fcntl.h>
#include <unistd.h>
#include <time.h>
#include <limits.h>
#include <string.h>
#include <stdio.h>
#include <errno.h>
#include <stdlib.h>
#include <glusterfs/api/glfs.h>
#include <glusterfs/api/glfs-handles.h>
#define LOG_ERR(func, ret) \
do { \
if (ret != 0) { \
fprintf(stderr, "%s : returned error ret(%d), errno(%d)\n", func, \
ret, errno); \
exit(1); \
} else { \
fprintf(stderr, "%s : returned %d\n", func, ret); \
} \
} while (0)
#define LOG_IF_NO_ERR(func, ret) \
do { \
if (ret == 0) { \
fprintf(stderr, "%s : hasn't returned error %d\n", func, ret); \
exit(1); \
} else { \
fprintf(stderr, "%s : returned %d\n", func, ret); \
} \
} while (0)
int
main(int argc, char *argv[])
{
glfs_t *fs = NULL;
int ret = 0;
struct glfs_object *root = NULL, *leaf = NULL;
glfs_fd_t *fd = NULL;
char *filename = "/ro-file";
struct stat sb = {
0,
};
char *logfile = NULL;
char *volname = NULL;
char *hostname = NULL;
char buf[32] = "abcdefghijklmnopqrstuvwxyz012345";
fprintf(stderr, "Starting glfs_h_creat_open\n");
if (argc != 4) {
fprintf(stderr, "Invalid argument\n");
exit(1);
}
hostname = argv[1];
volname = argv[2];
logfile = argv[3];
fs = glfs_new(volname);
if (!fs) {
fprintf(stderr, "glfs_new: returned NULL\n");
return 1;
}
ret = glfs_set_volfile_server(fs, "tcp", hostname, 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);
sleep(2);
root = glfs_h_lookupat(fs, NULL, "/", &sb, 0);
if (!root) {
ret = -1;
LOG_ERR("glfs_h_lookupat root", ret);
}
leaf = glfs_h_lookupat(fs, root, filename, &sb, 0);
if (!leaf) {
ret = -1;
LOG_IF_NO_ERR("glfs_h_lookupat leaf", ret);
}
leaf = glfs_h_creat_open(fs, root, filename, O_RDONLY, 00444, &sb, &fd);
if (!leaf || !fd) {
ret = -1;
LOG_ERR("glfs_h_creat leaf", ret);
}
fprintf(stderr, "glfs_h_create_open leaf - %p\n", leaf);
ret = glfs_write(fd, buf, 32, 0);
if (ret < 0) {
fprintf(stderr, "glfs_write: error writing to file %s, %s\n", filename,
strerror(errno));
goto out;
}
ret = glfs_h_getattrs(fs, leaf, &sb);
LOG_ERR("glfs_h_getattrs", ret);
if (sb.st_size != 32) {
fprintf(stderr, "glfs_write: post size mismatch\n");
goto out;
}
fprintf(stderr, "Successfully opened and written to a read-only file \n");
out:
if (fd)
glfs_close(fd);
ret = glfs_fini(fs);
LOG_ERR("glfs_fini", ret);
fprintf(stderr, "End of libgfapi_fini\n");
exit(0);
}
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