[deb_libnfs.git] / examples / nfsclient-async.c

/* 
   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.
 */
#ifdef WIN32
#include "win32_compat.h"
#else
#include <sys/stat.h>
#include <fcntl.h>
#include <poll.h>
#endif
 
#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 <unistd.h>
#include "libnfs.h"
#include "libnfs-raw.h"
#include "libnfs-raw-mount.h"

struct rpc_context *mount_context;

struct client {
       char *server;
       char *export;
       uint32_t mount_port;
       struct nfsfh *nfsfh;
       int is_finished;
};

void mount_export_cb(struct rpc_context *mount_context, int status, void *data, void *private_data)
{
	struct client *client = private_data;
	exports export = *(exports *)data;

	if (status < 0) {
		printf("MOUNT/EXPORT failed with \"%s\"\n", rpc_get_error(mount_context));
		exit(10);
	}

	printf("Got exports list from server %s\n", client->server);
	while (export != NULL) {
	      printf("Export: %s\n", export->ex_dir);
	      export = export->ex_next;
	}

	mount_context = NULL;

	client->is_finished = 1;
}

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);

	mount_context = rpc_init_context();
	if (mount_getexports_async(mount_context, client->server, mount_export_cb, client) != 0) {
		printf("Failed to start MOUNT/EXPORT\n");
		exit(10);
	}
}

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 64 bytes\n");
	if (nfs_pread_async(nfs, nfsfh, 0, 64, 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 _U_, char *argv[] _U_)
{
	struct nfs_context *nfs;
	int ret;
	struct client client;
	struct pollfd pfds[2]; /* nfs:0  mount:1 */

	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 (;;) {
		int num_fds;

		pfds[0].fd = nfs_get_fd(nfs);
		pfds[0].events = nfs_which_events(nfs);
		num_fds = 1;

		if (mount_context != 0 && rpc_get_fd(mount_context) != -1) {
			pfds[1].fd = rpc_get_fd(mount_context);
			pfds[1].events = rpc_which_events(mount_context);
			num_fds = 2;
		}
		if (poll(&pfds[0], 2, -1) < 0) {
			printf("Poll failed");
			exit(10);
		}
		if (mount_context != NULL) {
			if (rpc_service(mount_context, pfds[1].revents) < 0) {
				printf("rpc_service failed\n");
				break;
			}
		}
		if (nfs_service(nfs, pfds[0].revents) < 0) {
			printf("nfs_service failed\n");
			break;
		}
		if (client.is_finished) {
			break;
		}
	}
	
	nfs_destroy_context(nfs);
	if (mount_context != NULL) {
		rpc_destroy_context(mount_context);
		mount_context = NULL;
	}
	printf("nfsclient finished\n");
	return 0;
}
Commit	Line	Data
84004dbf RS	1	/*
	2	Copyright (C) by Ronnie Sahlberg <ronniesahlberg@gmail.com> 2010
	3
	4	This program is free software; you can redistribute it and/or modify
	5	it under the terms of the GNU General Public License as published by
	6	the Free Software Foundation; either version 3 of the License, or
	7	(at your option) any later version.
	8
	9	This program is distributed in the hope that it will be useful,
	10	but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	12	GNU General Public License for more details.
	13
	14	You should have received a copy of the GNU General Public License
	15	along with this program; if not, see <http://www.gnu.org/licenses/>.
	16	*/
	17
	18	/* Example program using the highlevel async interface.
	19	*/
a8a1b858 M	20	#ifdef WIN32
	21	#include "win32_compat.h"
	22	#else
	23	#include <sys/stat.h>
	24	#include <fcntl.h>
	25	#include <poll.h>
	26	#endif
	27
84004dbf	28	#define SERVER "10.1.1.27"
921f877b	29	#define EXPORT "/VIRTUAL"
84004dbf RS	30	#define NFSFILE "/BOOKS/Classics/Dracula.djvu"
	31	#define NFSDIR "/BOOKS/Classics/"
	32
	33	#include <stdio.h>
	34	#include <stdlib.h>
	35	#include <stdint.h>
	36	#include <sys/types.h>
84004dbf	37	#include <unistd.h>
84004dbf	38	#include "libnfs.h"
7f0242ca RS	39	#include "libnfs-raw.h"
	40	#include "libnfs-raw-mount.h"
	41
	42	struct rpc_context *mount_context;
84004dbf RS	43
	44	struct client {
	45	char *server;
	46	char *export;
	47	uint32_t mount_port;
	48	struct nfsfh *nfsfh;
	49	int is_finished;
	50	};
	51
7f0242ca RS	52	void mount_export_cb(struct rpc_context mount_context, int status, void data, void *private_data)
	53	{
	54	struct client *client = private_data;
	55	exports export = (exports )data;
	56
	57	if (status < 0) {
	58	printf("MOUNT/EXPORT failed with \"%s\"\n", rpc_get_error(mount_context));
	59	exit(10);
	60	}
	61
	62	printf("Got exports list from server %s\n", client->server);
	63	while (export != NULL) {
	64	printf("Export: %s\n", export->ex_dir);
	65	export = export->ex_next;
	66	}
	67
	68	mount_context = NULL;
	69
	70	client->is_finished = 1;
	71	}
	72
84004dbf RS	73	void nfs_opendir_cb(int status, struct nfs_context nfs, void data, void *private_data)
	74	{
	75	struct client *client = private_data;
	76	struct nfsdir *nfsdir = data;
	77	struct nfsdirent *nfsdirent;
	78
	79	if (status < 0) {
	80	printf("opendir failed with \"%s\"\n", (char *)data);
	81	exit(10);
	82	}
	83
	84	printf("opendir successful\n");
	85	while((nfsdirent = nfs_readdir(nfs, nfsdir)) != NULL) {
	86	printf("Inode:%d Name:%s\n", (int)nfsdirent->inode, nfsdirent->name);
	87	}
	88	nfs_closedir(nfs, nfsdir);
	89
7f0242ca RS	90	mount_context = rpc_init_context();
	91	if (mount_getexports_async(mount_context, client->server, mount_export_cb, client) != 0) {
	92	printf("Failed to start MOUNT/EXPORT\n");
	93	exit(10);
	94	}
84004dbf RS	95	}
	96
	97	void nfs_close_cb(int status, struct nfs_context nfs, void data, void *private_data)
	98	{
	99	struct client *client = private_data;
	100
	101	if (status < 0) {
	102	printf("close failed with \"%s\"\n", (char *)data);
	103	exit(10);
	104	}
	105
	106	printf("close successful\n");
	107	printf("call opendir(%s)\n", NFSDIR);
	108	if (nfs_opendir_async(nfs, NFSDIR, nfs_opendir_cb, client) != 0) {
	109	printf("Failed to start async nfs close\n");
	110	exit(10);
	111	}
	112	}
	113
	114	void nfs_fstat_cb(int status, struct nfs_context nfs, void data, void *private_data)
	115	{
	116	struct client *client = private_data;
	117	struct stat *st;
	118
	119	if (status < 0) {
	120	printf("fstat call failed with \"%s\"\n", (char *)data);
	121	exit(10);
	122	}
	123
	124	printf("Got reply from server for fstat(%s).\n", NFSFILE);
	125	st = (struct stat *)data;
	126	printf("Mode %04o\n", st->st_mode);
	127	printf("Size %d\n", (int)st->st_size);
	128	printf("Inode %04o\n", (int)st->st_ino);
	129
	130	printf("Close file\n");
	131	if (nfs_close_async(nfs, client->nfsfh, nfs_close_cb, client) != 0) {
	132	printf("Failed to start async nfs close\n");
	133	exit(10);
	134	}
	135	}
	136
	137	void nfs_read_cb(int status, struct nfs_context nfs, void data, void *private_data)
	138	{
	139	struct client *client = private_data;
	140	char *read_data;
	141	int i;
	142
	143	if (status < 0) {
	144	printf("read failed with \"%s\"\n", (char *)data);
	145	exit(10);
	146	}
	147
	148	printf("read successful with %d bytes of data\n", status);
	149	read_data = data;
	150	for (i=0;i<16;i++) {
	151	printf("%02x ", read_data[i]&0xff);
	152	}
	153	printf("\n");
	154	printf("Fstat file :%s\n", NFSFILE);
	155	if (nfs_fstat_async(nfs, client->nfsfh, nfs_fstat_cb, client) != 0) {
	156	printf("Failed to start async nfs fstat\n");
	157	exit(10);
	158	}
159	}
160
161	void nfs_open_cb(int status, struct nfs_context nfs, void data, void *private_data)
162	{
163	struct client *client = private_data;
164	struct nfsfh *nfsfh;
165
166	if (status < 0) {
167	printf("open call failed with \"%s\"\n", (char *)data);
168	exit(10);
169	}
170
171	nfsfh = data;
172	client->nfsfh = nfsfh;
173	printf("Got reply from server for open(%s). Handle:%p\n", NFSFILE, data);
921f877b RS	174	printf("Read first 64 bytes\n");
921f877b RS	175	if (nfs_pread_async(nfs, nfsfh, 0, 64, nfs_read_cb, client) != 0) {
84004dbf RS	176	printf("Failed to start async nfs open\n");
	177	exit(10);
	178	}
	179	}
	180
	181	void nfs_stat_cb(int status, struct nfs_context nfs, void data, void *private_data)
	182	{
	183	struct client *client = private_data;
	184	struct stat *st;
	185
	186	if (status < 0) {
	187	printf("stat call failed with \"%s\"\n", (char *)data);
	188	exit(10);
	189	}
	190
	191	printf("Got reply from server for stat(%s).\n", NFSFILE);
	192	st = (struct stat *)data;
	193	printf("Mode %04o\n", st->st_mode);
	194	printf("Size %d\n", (int)st->st_size);
	195	printf("Inode %04o\n", (int)st->st_ino);
	196
	197	printf("Open file for reading :%s\n", NFSFILE);
	198	if (nfs_open_async(nfs, NFSFILE, O_RDONLY, nfs_open_cb, client) != 0) {
	199	printf("Failed to start async nfs open\n");
	200	exit(10);
	201	}
	202	}
	203
	204	void nfs_mount_cb(int status, struct nfs_context nfs, void data, void *private_data)
	205	{
	206	struct client *client = private_data;
	207
	208	if (status < 0) {
	209	printf("mount/mnt call failed with \"%s\"\n", (char *)data);
	210	exit(10);
	211	}
	212
	213	printf("Got reply from server for MOUNT/MNT procedure.\n");
	214	printf("Stat file :%s\n", NFSFILE);
	215	if (nfs_stat_async(nfs, NFSFILE, nfs_stat_cb, client) != 0) {
	216	printf("Failed to start async nfs stat\n");
	217	exit(10);
	218	}
	219	}
	220
	221
	222
7d0397cf	223	int main(int argc _U_, char *argv[] _U_)
84004dbf RS	224	{
84004dbf RS	225	struct nfs_context *nfs;
84004dbf RS	226	int ret;
84004dbf RS	227	struct client client;
7f0242ca	228	struct pollfd pfds[2]; /* nfs:0 mount:1 */
84004dbf RS	229
	230	client.server = SERVER;
	231	client.export = EXPORT;
	232	client.is_finished = 0;
	233
	234	nfs = nfs_init_context();
	235	if (nfs == NULL) {
	236	printf("failed to init context\n");
	237	exit(10);
	238	}
	239
	240	ret = nfs_mount_async(nfs, client.server, client.export, nfs_mount_cb, &client);
	241	if (ret != 0) {
	242	printf("Failed to start async nfs mount\n");
	243	exit(10);
	244	}
	245
	246	for (;;) {
7f0242ca RS	247	int num_fds;
	248
	249	pfds[0].fd = nfs_get_fd(nfs);
	250	pfds[0].events = nfs_which_events(nfs);
	251	num_fds = 1;
84004dbf	252
7f0242ca RS	253	if (mount_context != 0 && rpc_get_fd(mount_context) != -1) {
	254	pfds[1].fd = rpc_get_fd(mount_context);
	255	pfds[1].events = rpc_which_events(mount_context);
	256	num_fds = 2;
	257	}
	258	if (poll(&pfds[0], 2, -1) < 0) {
84004dbf RS	259	printf("Poll failed");
	260	exit(10);
	261	}
7f0242ca RS	262	if (mount_context != NULL) {
	263	if (rpc_service(mount_context, pfds[1].revents) < 0) {
	264	printf("rpc_service failed\n");
	265	break;
	266	}
	267	}
	268	if (nfs_service(nfs, pfds[0].revents) < 0) {
84004dbf RS	269	printf("nfs_service failed\n");
	270	break;
	271	}
	272	if (client.is_finished) {
	273	break;
	274	}
	275	}
	276
	277	nfs_destroy_context(nfs);
7f0242ca RS	278	if (mount_context != NULL) {
	279	rpc_destroy_context(mount_context);
	280	mount_context = NULL;
	281	}
84004dbf RS	282	printf("nfsclient finished\n");
	283	return 0;
	284	}