C++ FILE_INFO::delete_file方法代码示例

// Handle a task that has finished.
// Mark its output files as present, and delete scratch files.
// Don't delete input files because they might be shared with other WUs.
// Update state of result record.
//
int CLIENT_STATE::app_finished(ACTIVE_TASK& at) {
    RESULT* rp = at.result;
    bool had_error = false;

#ifndef SIM
    FILE_INFO* fip;
    unsigned int i;
    char path[MAXPATHLEN];
    int retval;
    double size;

    // scan the output files, check if missing or too big.
    // Don't bother doing this if result was aborted via GUI or by project
    //
    switch (rp->exit_status) {
    case EXIT_ABORTED_VIA_GUI:
    case EXIT_ABORTED_BY_PROJECT:
        break;
    default:
        for (i=0; i<rp->output_files.size(); i++) {
            FILE_REF& fref = rp->output_files[i];
            fip = fref.file_info;
            if (fip->uploaded) continue;
            get_pathname(fip, path, sizeof(path));
            retval = file_size(path, size);
            if (retval) {
                if (fref.optional) {
                    fip->upload_urls.clear();
                    continue;
                }

                // an output file is unexpectedly absent.
                //
                fip->status = retval;
                had_error = true;
                msg_printf(
                    rp->project, MSG_INFO,
                    "Output file %s for task %s absent",
                    fip->name, rp->name
                );
            } else if (size > fip->max_nbytes) {
                // Note: this is only checked when the application finishes.
                // The total disk space is checked while the application is running.
                //
                msg_printf(
                    rp->project, MSG_INFO,
                    "Output file %s for task %s exceeds size limit.",
                    fip->name, rp->name
                );
                msg_printf(
                    rp->project, MSG_INFO,
                    "File size: %f bytes.  Limit: %f bytes",
                    size, fip->max_nbytes
                );

                fip->delete_file();
                fip->status = ERR_FILE_TOO_BIG;
                had_error = true;
            } else {
                if (!fip->uploadable() && !fip->sticky) {
                    fip->delete_file();     // sets status to NOT_PRESENT
                } else {
                    retval = 0;
                    if (fip->gzip_when_done) {
                        retval = fip->gzip();
                    }
                    if (!retval) {
                        retval = md5_file(path, fip->md5_cksum, fip->nbytes);
                    }
                    if (retval) {
                        fip->status = retval;
                        had_error = true;
                    } else {
                        fip->status = FILE_PRESENT;
                    }
                }
            }
        }
    }
#endif

    if (rp->exit_status != 0) {
        had_error = true;
    }

    if (had_error) {
        switch (rp->exit_status) {
        case EXIT_ABORTED_VIA_GUI:
        case EXIT_ABORTED_BY_PROJECT:
            rp->set_state(RESULT_ABORTED, "CS::app_finished");
            break;
        default:
            rp->set_state(RESULT_COMPUTE_ERROR, "CS::app_finished");
        }
        rp->project->njobs_error++;
//.........这里部分代码省略.........

// scan FILE_INFOs and create PERS_FILE_XFERs as needed.
// NOTE: this doesn't start the file transfers
// scan PERS_FILE_XFERs and delete finished ones.
//
bool CLIENT_STATE::create_and_delete_pers_file_xfers() {
    unsigned int i;
    FILE_INFO* fip;
    PERS_FILE_XFER *pfx;
    bool action = false;
    int retval;
    static double last_time;

    if (!clock_change && now - last_time < PERS_FILE_XFER_START_PERIOD) return false;
    last_time = now;

    // Look for FILE_INFOs for which we should start a transfer,
    // and make PERS_FILE_XFERs for them
    //
    for (i=0; i<file_infos.size(); i++) {
        fip = file_infos[i];
        pfx = fip->pers_file_xfer;
        if (pfx) continue;
        if (fip->downloadable() && fip->status == FILE_NOT_PRESENT) {
            pfx = new PERS_FILE_XFER;
            pfx->init(fip, false);
            fip->pers_file_xfer = pfx;
            pers_file_xfers->insert(fip->pers_file_xfer);
            action = true;
        } else if (fip->uploadable() && fip->status == FILE_PRESENT && !fip->uploaded) {
            pfx = new PERS_FILE_XFER;
            pfx->init(fip, true);
            fip->pers_file_xfer = pfx;
            pers_file_xfers->insert(fip->pers_file_xfer);
            action = true;

        }
    }

    // Scan existing PERS_FILE_XFERs, looking for those that are done,
    // and deleting them
    //
    vector<PERS_FILE_XFER*>::iterator iter;
    iter = pers_file_xfers->pers_file_xfers.begin();
    while (iter != pers_file_xfers->pers_file_xfers.end()) {
        pfx = *iter;

        // If the transfer finished, remove the PERS_FILE_XFER object
        // from the set and delete it
        //
        if (pfx->pers_xfer_done) {
            fip = pfx->fip;
            if (pfx->is_upload) {
                // file has been uploaded - delete if not sticky
                //
                if (!fip->sticky) {
                    fip->delete_file();
                }
                fip->uploaded = true;
                active_tasks.upload_notify_app(fip);
            } else if (fip->status >= 0) {
                // file transfer did not fail (non-negative status)

                // If this was a compressed download, rename .gzt to .gz
                //
                if (fip->download_gzipped) {
                    char path[MAXPATHLEN], from_path[MAXPATHLEN], to_path[MAXPATHLEN];
                    get_pathname(fip, path, sizeof(path));
                    snprintf(from_path, sizeof(from_path), "%s.gzt", path);
                    snprintf(to_path, sizeof(to_path), "%s.gz", path);
                    boinc_rename(from_path, to_path);
                }

                // verify the file with RSA or MD5, and change permissions
                //
                retval = fip->verify_file(true, true, true);
                if (retval == ERR_IN_PROGRESS) {
                    // do nothing
                } else if (retval) {
                    msg_printf(fip->project, MSG_INTERNAL_ERROR,
                        "Checksum or signature error for %s", fip->name
                    );
                    fip->status = retval;
                } else {
                    // Set the appropriate permissions depending on whether
                    // it's an executable or normal file
                    //
                    retval = fip->set_permissions();
                    fip->status = FILE_PRESENT;
                }

                // if it's a user file, tell running apps to reread prefs
                //
                if (fip->is_user_file) {
                    active_tasks.request_reread_prefs(fip->project);
                }

                // if it's a project file, make a link in project dir
                //
                if (fip->is_project_file) {
                    PROJECT* p = fip->project;
//.........这里部分代码省略.........