source: mainline/uspace/app/appslauncher/launch.c@ 4bfb5a0

/*
 * Copyright (c) 2023 SimonJRiddix
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <stdio.h>
#include <stdlib.h>
#include <str.h>
#include <str_error.h>
#include <task.h>
#include <ui/ui.h>

static const char *display_spec = UI_DISPLAY_DEFAULT;
int app_launchl(const char *app, ...);

#define NAME  "Apps Menu"

int app_launchl(const char *app, ...)
{
        errno_t rc;
        task_id_t id;
        task_wait_t wait;
        va_list ap;
        const char *arg;
        const char **argv;
        const char **argp;
        int cnt = 0;
        int i;

        va_start(ap, app);
        do {
                arg = va_arg(ap, const char *);
                cnt++;
        } while (arg != NULL);
        va_end(ap);

        argv = calloc(cnt + 4, sizeof(const char *));
        if (argv == NULL)
                return -1;

        task_exit_t texit;
        int retval;

        argp = argv;
        *argp++ = app;

        if (str_cmp(display_spec, UI_DISPLAY_DEFAULT) != 0) {
                *argp++ = "-d";
                *argp++ = display_spec;
        }

        va_start(ap, app);
        do {
                arg = va_arg(ap, const char *);
                *argp++ = arg;
        } while (arg != NULL);
        va_end(ap);

        *argp++ = NULL;

        printf("%s: Spawning %s", NAME, app);
        for (i = 0; argv[i] != NULL; i++) {
                printf(" %s", argv[i]);
        }
        printf("\n");

        rc = task_spawnv(&id, &wait, app, argv);
        if (rc != EOK) {
                printf("%s: Error spawning %s (%s)\n", NAME, app, str_error(rc));
                return -1;
        }

        rc = task_wait(&wait, &texit, &retval);
        if ((rc != EOK) || (texit != TASK_EXIT_NORMAL)) {
                printf("%s: Error retrieving retval from %s (%s)\n", NAME,
                    app, str_error(rc));
                return -1;
        }

        return retval;
}