static void do_fork(void)
{
switch(fork())
{
case -1: fail_unless(0==1);
break;
case 0: // Child.
{
struct dpth *dpth;
const char *savepath;
dpth=dpth_alloc();
dpth_protocol2_init(dpth,
lockpath,
"testclient",
cfiles,
MAX_STORAGE_SUBDIRS);
savepath=dpth_protocol2_mk(dpth);
write_to_dpth(dpth, savepath);
sleep(2);
dpth_free(&dpth);
exit(0);
}
default: break;
}
// Parent.
}
static struct dpth *setup(void)
{
struct dpth *dpth;
hexmap_init();
fail_unless(recursive_delete(lockpath, "", 1)==0);
fail_unless((dpth=dpth_alloc())!=NULL);
assert_components(dpth, 0, 0, 0, 0);
return dpth;
}
static
#endif
int do_backup_phase2_server_protocol2(struct async *as, struct asfd *chfd,
struct sdirs *sdirs, int resume, struct conf **confs)
{
int ret=-1;
uint8_t end_flags=0;
struct slist *slist=NULL;
struct iobuf wbuf;
struct dpth *dpth=NULL;
man_off_t *p1pos=NULL;
struct manios *manios=NULL;
// This is used to tell the client that a number of consecutive blocks
// have been found and can be freed.
uint64_t wrap_up=0;
struct asfd *asfd=NULL;
struct cntr *cntr=NULL;
struct sbuf *csb=NULL;
uint64_t file_no=1;
if(!as)
{
logp("async not provided to %s()\n", __func__);
goto end;
}
if(!sdirs)
{
logp("sdirs not provided to %s()\n", __func__);
goto end;
}
if(!confs)
{
logp("confs not provided to %s()\n", __func__);
goto end;
}
asfd=as->asfd;
if(!asfd)
{
logp("asfd not provided to %s()\n", __func__);
goto end;
}
if(!chfd)
{
logp("chfd not provided to %s()\n", __func__);
goto end;
}
cntr=get_cntr(confs);
if(get_int(confs[OPT_BREAKPOINT])>=2000
&& get_int(confs[OPT_BREAKPOINT])<3000)
{
breaking=get_int(confs[OPT_BREAKPOINT]);
breakcount=breaking-2000;
}
logp("Phase 2 begin (recv backup data)\n");
if(!(dpth=dpth_alloc())
|| dpth_protocol2_init(dpth,
sdirs->data,
get_string(confs[OPT_CNAME]),
sdirs->cfiles,
get_int(confs[OPT_MAX_STORAGE_SUBDIRS])))
goto end;
if(resume && !(p1pos=do_resume(sdirs, dpth, confs)))
goto end;
if(!(manios=manios_open_phase2(sdirs, p1pos, PROTO_2))
|| !(slist=slist_alloc())
|| !(csb=sbuf_alloc(PROTO_2)))
goto end;
iobuf_free_content(asfd->rbuf);
memset(&wbuf, 0, sizeof(struct iobuf));
while(!(end_flags&END_BACKUP))
{
if(maybe_add_from_scan(manios, slist, chfd, &csb))
goto end;
if(!wbuf.len)
{
if(get_wbuf_from_sigs(&wbuf, slist, &end_flags))
goto end;
if(!wbuf.len)
{
get_wbuf_from_files(&wbuf, slist,
manios, &end_flags, &file_no);
}
}
if(wbuf.len
&& asfd->append_all_to_write_buffer(asfd, &wbuf)==APPEND_ERROR)
goto end;
if(append_for_champ_chooser(chfd, slist->blist, end_flags))
goto end;
if(as->read_write(as))
{
logp("error from as->read_write in %s\n", __func__);
goto end;
}
while(asfd->rbuf->buf)
{
if(deal_with_read(asfd->rbuf, slist, cntr,
&end_flags, dpth))
goto end;
// Get as much out of the readbuf as possible.
if(asfd->parse_readbuf(asfd))
goto end;
}
while(chfd->rbuf->buf)
{
if(deal_with_read_from_chfd(chfd,
slist->blist, &wrap_up, dpth, cntr))
goto end;
// Get as much out of the readbuf as possible.
if(chfd->parse_readbuf(chfd))
goto end;
}
if(write_to_changed_file(asfd, chfd, manios,
slist, end_flags))
goto end;
}
// Hack: If there are some entries left after the last entry that
// contains block data, it will not be written to the changed file
// yet because the last entry of block data has not had
// sb->protocol2->bend set.
if(slist->head && slist->head->next)
{
struct sbuf *sb=NULL;
sb=slist->head;
slist->head=sb->next;
sbuf_free(&sb);
if(write_to_changed_file(asfd, chfd, manios,
slist, end_flags))
goto end;
}
if(manios_close(&manios))
goto end;
if(check_for_missing_work_in_slist(slist))
goto end;
// Need to release the last left. There should be one at most.
if(dpth->head && dpth->head->next)
{
logp("ERROR: More data locks remaining after: %s\n",
dpth->head->save_path);
goto end;
}
if(dpth_release_all(dpth)) goto end;
ret=0;
end:
logp("End backup\n");
sbuf_free(&csb);
slist_free(&slist);
if(asfd) iobuf_free_content(asfd->rbuf);
if(chfd) iobuf_free_content(chfd->rbuf);
dpth_free(&dpth);
manios_close(&manios);
man_off_t_free(&p1pos);
return ret;
}
int backup_phase2_server(struct async *as, struct sdirs *sdirs,
const char *manifest_dir, int resume, struct conf *conf)
{
int ret=-1;
int sigs_end=0;
int backup_end=0;
int requests_end=0;
int blk_requests_end=0;
struct slist *slist=NULL;
struct blist *blist=NULL;
struct iobuf *wbuf=NULL;
struct dpth *dpth=NULL;
struct manio *cmanio=NULL; // current manifest
struct manio *p1manio=NULL; // phase1 scan manifest
struct manio *chmanio=NULL; // changed manifest
struct manio *unmanio=NULL; // unchanged manifest
// This is used to tell the client that a number of consecutive blocks
// have been found and can be freed.
uint64_t wrap_up=0;
// Main fd is first in the list.
struct asfd *asfd=as->asfd;
// Champ chooser fd is second in the list.
struct asfd *chfd=asfd->next;
logp("Phase 2 begin (recv backup data)\n");
//if(champ_chooser_init(sdirs->data, conf)
if(!(cmanio=manio_alloc())
|| !(p1manio=manio_alloc())
|| !(chmanio=manio_alloc())
|| !(unmanio=manio_alloc())
|| manio_init_read(cmanio, sdirs->cmanifest)
|| manio_init_read(p1manio, sdirs->phase1data)
|| manio_init_write(chmanio, sdirs->changed)
|| manio_init_write(unmanio, sdirs->unchanged)
|| !(slist=slist_alloc())
|| !(blist=blist_alloc())
|| !(wbuf=iobuf_alloc())
|| !(dpth=dpth_alloc(sdirs->data))
|| dpth_init(dpth))
goto end;
// The phase1 manifest looks the same as a burp1 one.
manio_set_protocol(p1manio, PROTO_BURP1);
while(!backup_end)
{
if(maybe_add_from_scan(asfd,
p1manio, cmanio, unmanio, slist, conf))
goto end;
if(!wbuf->len)
{
if(get_wbuf_from_sigs(wbuf, slist, blist,
sigs_end, &blk_requests_end, dpth, conf))
goto end;
if(!wbuf->len)
{
get_wbuf_from_files(wbuf, slist,
p1manio, &requests_end);
}
}
if(wbuf->len)
asfd->append_all_to_write_buffer(asfd, wbuf);
append_for_champ_chooser(chfd, blist, sigs_end);
if(as->read_write(as))
{
logp("error in %s\n", __func__);
goto end;
}
while(asfd->rbuf->buf)
{
if(deal_with_read(asfd->rbuf, slist, blist,
conf, &sigs_end, &backup_end, dpth))
goto end;
// Get as much out of the
// readbuf as possible.
if(asfd->parse_readbuf(asfd)) goto end;
}
while(chfd->rbuf->buf)
{
if(deal_with_read_from_chfd(asfd, chfd,
blist, &wrap_up, dpth)) goto end;
// Get as much out of the
// readbuf as possible.
if(chfd->parse_readbuf(chfd)) goto end;
}
if(write_to_changed_file(asfd, chfd, chmanio,
slist, blist, dpth, backup_end, conf))
goto end;
}
// Hack: If there are some entries left after the last entry that
// contains block data, it will not be written to the changed file
// yet because the last entry of block data has not had
// sb->burp2->bend set.
if(slist->head && slist->head->next)
{
slist->head=slist->head->next;
if(write_to_changed_file(asfd, chfd, chmanio,
slist, blist, dpth, backup_end, conf))
goto end;
}
if(manio_close(unmanio)
|| manio_close(chmanio))
goto end;
if(blist->head)
{
logp("ERROR: finishing but still want block: %lu\n",
blist->head->index);
goto end;
}
// Need to release the last left. There should be one at most.
if(dpth->head && dpth->head->next)
{
logp("ERROR: More data locks remaining after: %s\n",
dpth->head->save_path);
goto end;
}
if(dpth_release_all(dpth)) goto end;
ret=0;
end:
logp("End backup\n");
slist_free(slist);
blist_free(blist);
iobuf_free_content(asfd->rbuf);
iobuf_free_content(chfd->rbuf);
// Write buffer did not allocate 'buf'.
if(wbuf) wbuf->buf=NULL;
iobuf_free(wbuf);
dpth_release_all(dpth);
dpth_free(&dpth);
manio_free(&cmanio);
manio_free(&p1manio);
manio_free(&chmanio);
manio_free(&unmanio);
return ret;
}
int backup_phase2_server_protocol1(struct async *as, struct sdirs *sdirs,
const char *incexc, int resume, struct conf **cconfs)
{
int ret=0;
struct manio *p1manio=NULL;
struct dpth *dpth=NULL;
char *deltmppath=NULL;
char *last_requested=NULL;
// Where to write changed data.
// Data is not getting written to a compressed file.
// This is important for recovery if the power goes.
struct fzp *chfp=NULL;
struct fzp *ucfp=NULL; // unchanged data
struct fzp *cmanfp=NULL; // previous (current) manifest.
struct sbuf *cb=NULL; // file list in current manifest
struct sbuf *p1b=NULL; // file list from client
struct sbuf *rb=NULL; // receiving file from client
struct asfd *asfd=as->asfd;
int breaking=0;
int breakcount=0;
if(get_int(cconfs[OPT_BREAKPOINT])>=2000
&& get_int(cconfs[OPT_BREAKPOINT])<3000)
{
breaking=get_int(cconfs[OPT_BREAKPOINT]);
breakcount=breaking-2000;
}
logp("Begin phase2 (receive file data)\n");
if(!(dpth=dpth_alloc())
|| dpth_protocol1_init(dpth, sdirs->currentdata,
get_int(cconfs[OPT_MAX_STORAGE_SUBDIRS])))
goto error;
if(open_previous_manifest(&cmanfp, sdirs, incexc, cconfs))
goto error;
if(get_int(cconfs[OPT_DIRECTORY_TREE]))
{
// Need to make sure we do not try to create a path that is
// too long.
if(build_path_w(sdirs->treepath)) goto error;
treepathlen=strlen(sdirs->treepath);
init_fs_max(sdirs->treepath);
}
if(!(p1manio=manio_alloc())
|| manio_init_read(p1manio, sdirs->phase1data)
|| !(cb=sbuf_alloc(cconfs))
|| !(p1b=sbuf_alloc(cconfs))
|| !(rb=sbuf_alloc(cconfs)))
goto error;
manio_set_protocol(p1manio, PROTO_1);
if(resume && do_resume(p1manio, sdirs, dpth, cconfs))
goto error;
// Unchanged and changed should now be truncated correctly, we just
// have to open them for appending.
if(!(ucfp=fzp_open(sdirs->unchanged, "a+b"))
|| !(chfp=fzp_open(sdirs->changed, "a+b")))
goto error;
if(manio_closed(p1manio)
&& manio_open_next_fpath(p1manio))
goto error;
while(1)
{
if(breaking)
{
if(breakcount--==0) return breakpoint(cconfs, __func__);
}
//printf("in loop, %s %s %c\n",
// cmanfp?"got cmanfp":"no cmanfp",
// rb->path.buf?:"no rb->path",
// rb->path.buf?'X':rb->path.cmd);
if(write_status(CNTR_STATUS_BACKUP,
rb->path.buf?rb->path.buf:p1b->path.buf, cconfs))
goto error;
if(last_requested
|| manio_closed(p1manio)
|| asfd->writebuflen)
{
switch(do_stuff_to_receive(asfd, sdirs,
cconfs, rb, chfp, dpth, &last_requested))
{
case 0: break;
case 1: goto end; // Finished ok.
case -1: goto error;
}
}
switch(do_stuff_to_send(asfd, p1b, &last_requested))
{
case 0: break;
case 1: continue;
case -1: goto error;
}
if(manio_closed(p1manio)) continue;
sbuf_free_content(p1b);
switch(manio_sbuf_fill_phase1(p1manio, asfd,
p1b, NULL, sdirs, cconfs))
{
case 0: break;
case 1: manio_close(p1manio);
if(asfd->write_str(asfd,
CMD_GEN, "backupphase2end")) goto error;
break;
case -1: goto error;
}
if(!cmanfp)
{
// No old manifest, need to ask for a new file.
if(process_new(sdirs, cconfs, p1b, ucfp))
goto error;
continue;
}
// Have an old manifest, look for it there.
// Might already have it, or be ahead in the old
// manifest.
if(cb->path.buf) switch(maybe_process_file(asfd,
sdirs, cb, p1b, ucfp, cconfs))
{
case 0: break;
case 1: continue;
case -1: goto error;
}
while(cmanfp)
{
sbuf_free_content(cb);
switch(sbufl_fill(cb, asfd, cmanfp, cconfs))
{
case 0: break;
case 1: fzp_close(&cmanfp);
if(process_new(sdirs, cconfs, p1b,
ucfp)) goto error;
continue;
case -1: goto error;
}
switch(maybe_process_file(asfd, sdirs,
cb, p1b, ucfp, cconfs))
{
case 0: continue;
case 1: break;
case -1: goto error;
}
break;
}
}
error:
ret=-1;
end:
if(fzp_close(&chfp))
{
logp("error closing %s in %s\n", sdirs->changed, __func__);
ret=-1;
}
if(fzp_close(&ucfp))
{
logp("error closing %s in %s\n", sdirs->unchanged, __func__);
ret=-1;
}
free_w(&deltmppath);
sbuf_free(&cb);
sbuf_free(&p1b);
sbuf_free(&rb);
manio_free(&p1manio);
fzp_close(&cmanfp);
dpth_free(&dpth);
if(!ret) unlink(sdirs->phase1data);
logp("End phase2 (receive file data)\n");
return ret;
}
