int handle_remove(const char* name) {
DB_VDA_FILE vf;
char buf[1024];
sprintf(buf, "where file_name='%s'", name);
int retval = vf.lookup(buf);
if (retval) return retval;
// delete DB records
//
DB_VDA_CHUNK_HOST ch;
sprintf(buf, "vda_file_id=%d", vf.id);
ch.delete_from_db_multi(buf);
vf.delete_from_db();
// remove symlink from download hier
//
dir_hier_path(name, config.download_dir, config.uldl_dir_fanout, buf);
unlink(buf);
// remove encoded data and directories
//
retval = chdir(vf.dir);
if (retval) perror("chdir");
retval = system("/bin/rm -r [0-9]* Coding data.vda");
if (retval) perror("system");
return 0;
}
int handle_status(const char* name) {
DB_VDA_FILE dvf;
char buf[1024];
sprintf(buf, "where file_name='%s'", name);
int retval = dvf.lookup(buf);
if (retval) return retval;
VDA_FILE_AUX vf = dvf;
sprintf(buf, "%s/boinc_meta.txt", vf.dir);
retval = vf.policy.parse(buf);
if (retval) {
log_messages.printf(MSG_CRITICAL, "Can't parse policy file %s\n", buf);
return retval;
}
retval = vf.get_state();
if (retval) {
log_messages.printf(MSG_CRITICAL, "Can't get file state: %d\n", retval);
return retval;
}
printf("status for file %s:\n", vf.file_name);
vf.meta_chunk->recovery_plan();
vf.meta_chunk->compute_min_failures();
vf.meta_chunk->print_status(0);
printf("fault tolerance level: %d\n", vf.meta_chunk->min_failures-1);
if (vf.retrieving) {
if (vf.retrieved) {
printf("Retrieving: completed\n");
} else {
printf("Retrieving: in progress\n");
}
}
return 0;
}
int handle_status(const char* name) {
DB_VDA_FILE vf;
char buf[1024];
sprintf(buf, "where name='%s'", name);
int retval = vf.lookup(buf);
if (retval) return retval;
return 0;
}
int handle_update(const char* name) {
DB_VDA_FILE dvf;
char buf[1024];
sprintf(buf, "where file_name='%s'", name);
int retval = dvf.lookup(buf);
if (retval) return retval;
return dvf.update_field("need_update=1");
}
int handle_retrieve(const char* name) {
DB_VDA_FILE vf;
char buf[1024];
sprintf(buf, "where name='%s'", name);
int retval = vf.lookup(buf);
if (retval) return retval;
retval = vf.update_field("retrieving=1");
return retval;
}
// Process a present file; possibilities:
// - a download finished
// - this host hasn't communicated in a while, and we deleted the
// VDA_CHUNK_HOST record
// So:
// - create a vda_chunk_host record if needed
// - set present_on_host flag in vda_chunk_host
// - mark our in-memory vda_chunk_host record as "found"
// - mark vda_file for update
//
static void process_present_file(FILE_INFO& fi, CHUNK_LIST& chunks) {
char fname[256], chunk_name[256], buf[256];
int hostid, retval;
retval = parse_physical_filename(fi.name, hostid, chunk_name, fname);
if (retval) {
log_messages.printf(MSG_CRITICAL,
"Can't parse VDA filename %s\n", fi.name
);
return;
}
DB_VDA_FILE vf;
sprintf(buf, "where file_name='%s'", fname);
retval = vf.lookup(buf);
if (retval) {
log_messages.printf(MSG_CRITICAL, "No VDA file %s\n", fname);
return;
}
if (fi.nbytes != vf.chunk_size) {
log_messages.printf(MSG_CRITICAL,
"wrong chunk size: %.0f != %.0f\n",
fi.nbytes, vf.chunk_size
);
return;
}
CHUNK_LIST::iterator cli = chunks.find(string(fi.name));
if (cli == chunks.end()) {
// don't have a record of this chunk on this host; make one
//
DB_VDA_CHUNK_HOST ch;
ch.create_time = dtime();
ch.vda_file_id = vf.id;
ch.host_id = g_reply->host.id;
strcpy(ch.physical_file_name, fi.name);
ch.present_on_host = true;
ch.transfer_in_progress = false;
ch.transfer_wait = false;
ch.transfer_request_time = 0;
ch.transfer_send_time = 0;
retval = ch.insert();
if (retval) {
log_messages.printf(MSG_CRITICAL, "ch.insert() failed\n");
return;
}
} else {
// update the existing record
//
DB_VDA_CHUNK_HOST* chp = &(cli->second);
chp->transfer_in_progress = false;
chp->transfer_wait = false;
chp->present_on_host = true;
chp->update();
}
mark_for_update(vf.id);
}
int handle_status(const char* name) {
DB_VDA_FILE dvf;
char buf[1024];
sprintf(buf, "where file_name='%s'", name);
int retval = dvf.lookup(buf);
if (retval) return retval;
VDA_FILE_AUX vf = dvf;
sprintf(buf, "%s/boinc_meta.txt", vf.dir);
retval = vf.policy.parse(buf);
if (retval) {
log_messages.printf(MSG_CRITICAL, "Can't parse policy file %s\n", buf);
return retval;
}
retval = vf.get_state();
if (retval) {
log_messages.printf(MSG_CRITICAL, "Can't get file state: %d\n", retval);
return retval;
}
printf("status for file %s:", vf.file_name);
vf.meta_chunk->print_status(0);
return 0;
}
// Process a file that's present on client.
// A VDA_CHUNK_HOST record may not be in the DB,
// e.g. because this host hasn't communicated in a while
// and we deleted the VDA_CHUNK_HOST record
// So:
// - create a vda_chunk_host record if needed
// - set present_on_host flag in vda_chunk_host
// - mark our in-memory vda_chunk_host record as "found"
// - mark vda_file for update
//
static void process_chunk_present_on_client(FILE_INFO& fi, CHUNK_LIST& chunks) {
char fname[256], chunk_name[256], buf[1024];
int hostid, retval;
retval = parse_physical_filename(fi.name, hostid, chunk_name, fname);
if (retval) {
log_messages.printf(MSG_CRITICAL,
"Can't parse VDA filename %s\n", fi.name
);
return;
}
DB_VDA_FILE vf;
sprintf(buf, "where file_name='%s'", fname);
retval = vf.lookup(buf);
if (retval) {
log_messages.printf(MSG_CRITICAL,
"No VDA file for %s, deleting\n", fi.name
);
delete_file_xml(fi.name, buf);
g_reply->file_transfer_requests.push_back(string(buf));
return;
}
if (fi.nbytes != vf.chunk_size) {
log_messages.printf(MSG_CRITICAL,
"wrong chunk size for %s: %.0f != %.0f, deleting\n",
fi.name, fi.nbytes, vf.chunk_size
);
delete_file_xml(fi.name, buf);
g_reply->file_transfer_requests.push_back(string(buf));
return;
}
CHUNK_LIST::iterator cli = chunks.find(string(fi.name));
if (cli == chunks.end()) {
// we don't have a record of this chunk on this host; make one
//
DB_VDA_CHUNK_HOST ch;
ch.create_time = dtime();
ch.vda_file_id = vf.id;
ch.host_id = g_reply->host.id;
strcpy(ch.physical_file_name, fi.name);
ch.present_on_host = true;
ch.transfer_in_progress = false;
ch.transfer_wait = false;
ch.transfer_request_time = 0;
ch.transfer_send_time = 0;
retval = ch.insert();
if (retval) {
log_messages.printf(MSG_CRITICAL, "ch.insert() failed\n");
return;
}
mark_for_update(vf.id);
} else {
// we already have a DB record.
// If needed, update it and mark file for update
//
DB_VDA_CHUNK_HOST* chp = &(cli->second);
chp->found = true;
// if file wasn't previously on host, update the main file
//
if (!chp->present_on_host) {
mark_for_update(vf.id);
chp->transfer_in_progress = false;
chp->transfer_wait = false;
chp->present_on_host = true;
sprintf(buf,
"host_id=%d and physical_file_name='%s'",
chp->host_id, chp->physical_file_name
);
chp->update_fields_noid(
"transfer_in_progress=0, transfer_wait=0, present_on_host=1",
buf
);
}
}
}
