void do_write() {
if (outstanding_writes >= PARALLEL_WRITES)
return;
if (written < size && !callback) {
unsigned s = size-written;
s = s > srv->wtpref ? srv->wtpref : s;
if (use_lbfs)
aiod_read (written, s,
wrap (this, &write_obj::lbfs_condwrite, written, s));
else
aiod_read (written, s,
wrap (this, &write_obj::nfs3_write, written, s));
written += s;
}
if (!use_lbfs && written == size && !commit) {
commit = true;
nfs3_commit ();
}
}
int main(int argc, char *argv[])
{
struct addrinfo *srv_addr, hints;
int err;
enum clnt_stat stat;
nfs_ctx *ctx = NULL;
LOOKUP3args largs;
WRITE3args wr;
COMMIT3args ci;
if(argc < 6) {
fprintf(stderr, "Not enough arguments\nThis tests the asynchronous "
"libnfsclient NFS WRITE call interface and "
"callback\n"
"USAGE: nfs_write <server> <remote_file_dir> "
"<file/dirname> <offset> <count>\n"
"NOTE: <count> is ignored for now.\n");
return 0;
}
/* First resolve server name */
hints.ai_family = AF_INET;
hints.ai_protocol = 0;
hints.ai_socktype = 0;
hints.ai_flags = 0;
fprintf(stdout, "Resolving name: %s\n", argv[1]);
if((err = getaddrinfo(argv[1], NULL, &hints, &srv_addr)) != 0) {
fprintf(stderr, "%s: Cannot resolve name: %s: %s\n",
argv[0], argv[1], gai_strerror(err));
return -1;
}
fprintf(stdout, "Creating nfs client context..\n");
ctx = nfs_init((struct sockaddr_in *)srv_addr->ai_addr, IPPROTO_TCP, 0);
if(ctx == NULL) {
fprintf(stderr, "%s: Cant init nfs context\n", argv[0]);
return 0;
}
freeaddrinfo(srv_addr);
mntfh.fhandle3_len = 0;
fprintf(stdout, "Sending mount call..\n");
stat = mount3_mnt(&argv[2], ctx, nfs_mnt_cb, NULL);
if(stat == RPC_SUCCESS)
fprintf(stderr, "NFS MOUNT Call sent successfully\n");
else {
fprintf(stderr, "Could not send NFS MOUNT call\n");
return 0;
}
fprintf(stdout, "Mount call received..\n");
largs.what.dir.data.data_len = mntfh.fhandle3_len;
largs.what.dir.data.data_val = mntfh.fhandle3_val;
largs.what.name = argv[3];
lfh.fhandle3_len = 0;
fprintf(stdout, "Sending lookup call for %s\n", argv[3]);
stat = nfs3_lookup(&largs, ctx, nfs_lookup_cb, NULL);
if(stat == RPC_SUCCESS)
fprintf(stderr, "NFS LOOKUP Call sent successfully\n");
else {
fprintf(stderr, "Could not send NFS LOOKUP call\n");
return 0;
}
/* Dont need the mount file handle anymore. */
mem_free(mntfh.fhandle3_val, mntfh.fhandle3_len);
fprintf(stdout, "Waiting for lookup reply..\n");
nfs_complete(ctx, RPC_BLOCKING_WAIT);
fprintf(stdout, "Lookup reply received..\n");
wr.file.data.data_len = lfh.fhandle3_len;
wr.file.data.data_val = lfh.fhandle3_val;
wr.offset = atol(argv[4]);
wr.count = strlen(wrdat);
//wr.count = atol(argv[5]);
wr.stable = UNSTABLE;
wr.data.data_len = strlen(wrdat);
wr.data.data_val = wrdat;
res = NULL;
fprintf(stdout, "Sending write call\n");
stat = nfs3_write(&wr, ctx, nfs_write_cb, NULL);
if(stat == RPC_SUCCESS)
fprintf(stderr, "NFS WRITE Call sent successfully\n");
else {
fprintf(stderr, "Could not send NFS WRITE call\n");
return 0;
}
fprintf(stdout, "Waiting for write reply..\n");
nfs_complete(ctx, RPC_BLOCKING_WAIT);
free_WRITE3res(res);
fprintf(stdout, "Write reply received..\n");
ci.file.data.data_len = lfh.fhandle3_len;
ci.file.data.data_val = lfh.fhandle3_val;
ci.offset = atol(argv[4]);
ci.count = strlen(wrdat);
fprintf(stdout, "Sending commit request..\n");
stat = nfs3_commit(&ci, ctx, nfs_commit_cb, NULL);
if(stat == RPC_SUCCESS)
fprintf(stderr, "NFS COMMIT Call sent successfully\n");
else {
fprintf(stderr, "Could not send NFS COMMIT call\n");
return 0;
}
fprintf(stdout, "Waiting for commit reply..\n");
nfs_complete(ctx, RPC_BLOCKING_WAIT);
fprintf(stdout, "Received commit reply..\n");
return 0;
}