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/* -*- mode:c; tab-width:8; c-basic-offset:8; indent-tabs-mode:nil; -*- */
/*
Copyright (C) by Ronnie Sahlberg <ronniesahlberg@gmail.com> 2021
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/>.
*/
#define _FILE_OFFSET_BITS 64
#define _GNU_SOURCE
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifdef AROS
#include "aros_compat.h"
#endif
#ifdef WIN32
#include <win32/win32_compat.h>
#pragma comment(lib, "ws2_32.lib")
WSADATA wsaData;
#else
#include <sys/stat.h>
#include <string.h>
#endif
#ifdef HAVE_POLL_H
#include <poll.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <sys/types.h>
#include <fcntl.h>
#include <time.h>
#include <pthread.h>
#include "libnfs.h"
#include "libnfs-raw.h"
#include "libnfs-raw-nfs.h"
void usage(void)
{
fprintf(stderr, "Usage: nfs-pthread-example <url> <num-threads>\n");
fprintf(stderr, "\tExample program using pthreads.\n");
exit(0);
}
struct stat_data {
struct nfs_context *nfs;
int idx;
char *path;
int is_finished;
};
static void *nfs_stat_thread(void *arg)
{
struct stat_data *sd = arg;
struct nfs_stat_64 st;
int i, ret;
printf("Stat thread %03d\n", sd->idx);
i = 0;
while(!sd->is_finished) {
ret = nfs_stat64(sd->nfs, sd->path, &st);
if (ret < 0) {
printf("Stat failed: %s\n", nfs_get_error(sd->nfs));
exit(10);
}
i++;
}
printf("%03d:%d ret:%d st->ino:%d\n", sd->idx, i, ret, (int)st.nfs_ino);
return NULL;
}
int main(int argc, char *argv[])
{
int i, num_threads;
int ret = 0;
struct nfs_context *nfs = NULL;
struct nfsfh *nfsfh = NULL;
struct nfs_fh3 *fh3;
struct nfs_url *url = NULL;
pthread_t *stat_thread;
struct stat_data *sd;
#ifdef WIN32
if (WSAStartup(MAKEWORD(2,2), &wsaData) != 0) {
printf("Failed to start Winsock2\n");
return 1;
}
#endif
#ifdef AROS
aros_init_socket();
#endif
if (argc < 3) {
usage();
}
num_threads = atoi(argv[2]);
printf("Number of threads : %d\n", num_threads);
nfs = nfs_init_context();
if (nfs == NULL) {
fprintf(stderr, "failed to init context\n");
goto finished;
}
url = nfs_parse_url_full(nfs, argv[1]);
if (url == NULL) {
fprintf(stderr, "%s\n", nfs_get_error(nfs));
ret = 1;
goto finished;
}
if (nfs_mount(nfs, url->server, url->path) != 0) {
fprintf(stderr, "Failed to mount nfs share : %s\n",
nfs_get_error(nfs));
ret = 1;
goto finished;
}
/*
* Before we can use multithreading we must initialize and
* start the service thread.
*/
printf("Start the service thread\n");
if (nfs_mt_service_thread_start(nfs)) {
printf("failed to start service thread\n");
exit(10);
}
printf("Service thread is active. Ready to do I/O\n");
printf("Start %d thread(s) calling stat on %s\n", num_threads, url->file);
if ((sd = malloc(sizeof(struct stat_data) * num_threads)) == NULL) {
printf("Failed to allocated stat_data\n");
exit(10);
}
if ((stat_thread = malloc(sizeof(pthread_t) * num_threads)) == NULL) {
printf("Failed to allocated stat_thread\n");
exit(10);
}
for (i = 0; i < num_threads; i++) {
sd[i].nfs = nfs;
sd[i].path = url->file;
sd[i].is_finished = 0;
sd[i].idx = i;
if (pthread_create(&stat_thread[i], NULL,
&nfs_stat_thread, &sd[i])) {
printf("Failed to create stat thread %d\n", i);
exit(10);
}
}
sleep(1);
/*
* Terminate all the worker threads
*/
printf("Closing all worker threads\n");
for (i = 0; i < num_threads; i++) {
sd[i].is_finished = 1;
}
for (i = 0; i < num_threads; i++) {
pthread_join(stat_thread[i], NULL);
}
printf("closing service thread\n");
nfs_mt_service_thread_stop(nfs);
finished:
if (nfsfh) {
nfs_close(nfs, nfsfh);
}
nfs_umount(nfs);
if (url) {
nfs_destroy_url(url);
}
if (nfs) {
nfs_destroy_context(nfs);
}
free(sd);
free(stat_thread);
return ret;
}
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