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/*
Copyright (C) by Ronnie Sahlberg <ronniesahlberg@gmail.com> 2010
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
/* Example program using the highlevel async interface.
*/
#define SERVER "10.1.1.27"
#define EXPORT "/VIRTUAL"
#define NFSFILE "/BOOKS/Classics/Dracula.djvu"
#define NFSDIR "/BOOKS/Classics/"
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <poll.h>
#include <ccan/nfs/nfs.h>
struct client {
char *server;
char *export;
uint32_t mount_port;
struct nfsfh *nfsfh;
int is_finished;
};
void nfs_opendir_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
{
struct client *client = private_data;
struct nfsdir *nfsdir = data;
struct nfsdirent *nfsdirent;
if (status < 0) {
printf("opendir failed with \"%s\"\n", (char *)data);
exit(10);
}
printf("opendir successful\n");
while((nfsdirent = nfs_readdir(nfs, nfsdir)) != NULL) {
printf("Inode:%d Name:%s\n", (int)nfsdirent->inode, nfsdirent->name);
}
nfs_closedir(nfs, nfsdir);
client->is_finished = 1;
}
void nfs_close_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
{
struct client *client = private_data;
if (status < 0) {
printf("close failed with \"%s\"\n", (char *)data);
exit(10);
}
printf("close successful\n");
printf("call opendir(%s)\n", NFSDIR);
if (nfs_opendir_async(nfs, NFSDIR, nfs_opendir_cb, client) != 0) {
printf("Failed to start async nfs close\n");
exit(10);
}
}
void nfs_fstat_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
{
struct client *client = private_data;
struct stat *st;
if (status < 0) {
printf("fstat call failed with \"%s\"\n", (char *)data);
exit(10);
}
printf("Got reply from server for fstat(%s).\n", NFSFILE);
st = (struct stat *)data;
printf("Mode %04o\n", st->st_mode);
printf("Size %d\n", (int)st->st_size);
printf("Inode %04o\n", (int)st->st_ino);
printf("Close file\n");
if (nfs_close_async(nfs, client->nfsfh, nfs_close_cb, client) != 0) {
printf("Failed to start async nfs close\n");
exit(10);
}
}
void nfs_read_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
{
struct client *client = private_data;
char *read_data;
int i;
if (status < 0) {
printf("read failed with \"%s\"\n", (char *)data);
exit(10);
}
printf("read successful with %d bytes of data\n", status);
read_data = data;
for (i=0;i<16;i++) {
printf("%02x ", read_data[i]&0xff);
}
printf("\n");
printf("Fstat file :%s\n", NFSFILE);
if (nfs_fstat_async(nfs, client->nfsfh, nfs_fstat_cb, client) != 0) {
printf("Failed to start async nfs fstat\n");
exit(10);
}
}
void nfs_open_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
{
struct client *client = private_data;
struct nfsfh *nfsfh;
if (status < 0) {
printf("open call failed with \"%s\"\n", (char *)data);
exit(10);
}
nfsfh = data;
client->nfsfh = nfsfh;
printf("Got reply from server for open(%s). Handle:%p\n", NFSFILE, data);
printf("Read first 16 bytes\n");
if (nfs_pread_async(nfs, nfsfh, 0, 16, nfs_read_cb, client) != 0) {
printf("Failed to start async nfs open\n");
exit(10);
}
}
void nfs_stat_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
{
struct client *client = private_data;
struct stat *st;
if (status < 0) {
printf("stat call failed with \"%s\"\n", (char *)data);
exit(10);
}
printf("Got reply from server for stat(%s).\n", NFSFILE);
st = (struct stat *)data;
printf("Mode %04o\n", st->st_mode);
printf("Size %d\n", (int)st->st_size);
printf("Inode %04o\n", (int)st->st_ino);
printf("Open file for reading :%s\n", NFSFILE);
if (nfs_open_async(nfs, NFSFILE, O_RDONLY, nfs_open_cb, client) != 0) {
printf("Failed to start async nfs open\n");
exit(10);
}
}
void nfs_mount_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
{
struct client *client = private_data;
if (status < 0) {
printf("mount/mnt call failed with \"%s\"\n", (char *)data);
exit(10);
}
printf("Got reply from server for MOUNT/MNT procedure.\n");
printf("Stat file :%s\n", NFSFILE);
if (nfs_stat_async(nfs, NFSFILE, nfs_stat_cb, client) != 0) {
printf("Failed to start async nfs stat\n");
exit(10);
}
}
int main(int argc, char *argv[])
{
struct nfs_context *nfs;
struct pollfd pfd;
int ret;
struct client client;
client.server = SERVER;
client.export = EXPORT;
client.is_finished = 0;
nfs = nfs_init_context();
if (nfs == NULL) {
printf("failed to init context\n");
exit(10);
}
ret = nfs_mount_async(nfs, client.server, client.export, nfs_mount_cb, &client);
if (ret != 0) {
printf("Failed to start async nfs mount\n");
exit(10);
}
for (;;) {
pfd.fd = nfs_get_fd(nfs);
pfd.events = nfs_which_events(nfs);
if (poll(&pfd, 1, -1) < 0) {
printf("Poll failed");
exit(10);
}
if (nfs_service(nfs, pfd.revents) < 0) {
printf("nfs_service failed\n");
break;
}
if (client.is_finished) {
break;
}
}
nfs_destroy_context(nfs);
printf("nfsclient finished\n");
return 0;
}
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