Function bootstrap_production_spawn

src/daemon/bootstrap.c:722–786

#ifdef _WIN32
static bool bootstrap_production_spawn(void *context,
                                       const cbm_daemon_bootstrap_launch_spec_t *spec) {
    bootstrap_production_context_t *production = context;
    if (production) {
        production->spawn_error = ERROR_SUCCESS;
    }
    if (!spec || !spec->detached || spec->inherit_standard_handles || spec->use_shell) {
        if (production) {
            production->spawn_error = ERROR_INVALID_PARAMETER;
        }
        return false;
    }
    char command_line[BOOTSTRAP_PATH_CAP * 2];
    if (!cbm_build_win_cmdline(command_line, sizeof(command_line), spec->argv)) {
        if (production) {
            production->spawn_error = ERROR_INVALID_PARAMETER;
        }
        return false;
    }
    wchar_t *application = cbm_utf8_to_wide(spec->executable_path);
    wchar_t *command = cbm_utf8_to_wide(command_line);
    if (!application || !command) {
        if (production) {
            production->spawn_error = ERROR_NOT_ENOUGH_MEMORY;
        }
        free(application);
        free(command);
        return false;
    }
    STARTUPINFOW startup;
    PROCESS_INFORMATION child;
    ZeroMemory(&startup, sizeof(startup));
    ZeroMemory(&child, sizeof(child));
    startup.cb = sizeof(startup);
    DWORD flags = DETACHED_PROCESS | CREATE_NEW_PROCESS_GROUP | CREATE_NO_WINDOW;
    /* A managed frontend payload is intentionally contained in the permanent
     * launcher's kill-on-close job. The account daemon outlives that one
     * frontend and therefore uses breakaway when the containing job explicitly
     * permits it. Do not request breakaway from an unrelated restrictive job:
     * CreateProcess would fail and regress portable/package-manager payloads. */
    BOOL in_job = FALSE;
    JOBOBJECT_EXTENDED_LIMIT_INFORMATION job_limits;
    memset(&job_limits, 0, sizeof(job_limits));
    if (IsProcessInJob(GetCurrentProcess(), NULL, &in_job) && in_job &&
        QueryInformationJobObject(NULL, JobObjectExtendedLimitInformation, &job_limits,
                                  sizeof(job_limits), NULL) &&
        (job_limits.BasicLimitInformation.LimitFlags &
         (JOB_OBJECT_LIMIT_BREAKAWAY_OK | JOB_OBJECT_LIMIT_SILENT_BREAKAWAY_OK)) != 0) {
        flags |= CREATE_BREAKAWAY_FROM_JOB;
    }
    BOOL created = CreateProcessW(application, command, NULL, NULL, FALSE, flags, NULL, NULL,
                                  &startup, &child);
    DWORD spawn_error = created ? ERROR_SUCCESS : GetLastError();
    free(application);
    free(command);
    if (production) {
        production->spawn_error = spawn_error;
    }