ceph/ceph/tcpfuse.cc
sage b5df4a472c *** empty log message ***
git-svn-id: https://ceph.svn.sf.net/svnroot/ceph@667 29311d96-e01e-0410-9327-a35deaab8ce9
2006-02-23 02:28:42 +00:00

120 lines
2.3 KiB
C++

#include <sys/stat.h>
#include <iostream>
#include <string>
using namespace std;
#include "config.h"
#include "mds/MDCluster.h"
#include "mds/MDS.h"
#include "osd/OSD.h"
#include "client/Client.h"
#include "client/fuse.h"
#include "msg/TCPMessenger.h"
#include "common/Timer.h"
#include <envz.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
int main(int argc, char **argv, char *envp[]) {
//cerr << "tcpfuse starting " << myrank << "/" << world << endl;
vector<char*> args;
argv_to_vec(argc, argv, args);
parse_config_options(args);
vector<char*> nargs;
char *nsaddr = 0;
tcpaddr_t nsa;
bool have_nsa = false;
for (unsigned i=0; i<args.size(); i++) {
if (strcmp(args[i], "--ns") == 0) {
nsaddr = args[++i];
}
else {
// unknown arg, pass it on.
nargs.push_back(args[i]);
cout << "fuse arg: " << args[i] << endl;
}
}
if (nsaddr == 0) {
// env var?
int e_len = 0;
for (int i=0; envp[i]; i++)
e_len += strlen(envp[i]) + 1;
nsaddr = envz_entry(*envp, e_len, "CEPH_NAMESERVER");
if (nsaddr) {
while (nsaddr[0] != '=') nsaddr++;
nsaddr++;
}
}
if (!nsaddr) {
// file?
int fd = ::open(".ceph_ns",O_RDONLY);
if (fd > 0) {
::read(fd, (void*)&nsa, sizeof(nsa));
::close(fd);
have_nsa = true;
nsaddr = "from .ceph_ns";
}
}
if (!nsaddr && !have_nsa) {
cerr << "i need ceph ns addr.. either CEPH_NAMESERVER env var or --ns blah" << endl;
exit(-1);
}
// look up nsaddr?
if (!have_nsa && tcpmessenger_lookup(nsaddr, nsa) < 0) {
return 1;
}
cout << "ceph ns is " << nsaddr << " or " << nsa << endl;
// args for fuse
args = nargs;
vec_to_argv(args, argc, argv);
// start up tcpmessenger
tcpmessenger_init();
tcpmessenger_start();
tcpmessenger_start_rankserver(nsa);
Client *client = new Client(new TCPMessenger(MSG_ADDR_CLIENT_NEW));
client->init();
// start up fuse
// use my argc, argv (make sure you pass a mount point!)
cout << "mounting" << endl;
client->mount();
cerr << "starting fuse on pid " << getpid() << endl;
ceph_fuse_main(client, argc, argv);
cerr << "fuse finished on pid " << getpid() << endl;
client->unmount();
cout << "unmounted" << endl;
client->shutdown();
delete client;
// wait for it to finish
tcpmessenger_wait();
tcpmessenger_shutdown(); // shutdown MPI
return 0;
}