forked from AuroraMiddleware/gtk
75fd7f09af
2001-06-25 Alexander Larsson <alexl@redhat.com> * configure.in: Added --enable-fbmanager. This is some experimental code that lets several GtkFB apps coordinate their access to the framebuffer. * acconfig.h: Added ENABLE_FB_MANAGER. * gdk/linux-fb/Makefile.am: Added gdkfbmanager and gdkfbswitch. * gdk/linux-fb/gdkkeyboard-fb.c: * gdk/linux-fb/gdkmouse-fb.c: * gdk/linux-fb/gdkprivate-fb.h: Split device init and open so that they can be opened and closed while switched away. * gdk/linux-fb/gdkmain-fb.c: Add the basic manager communication. * gdk/linux-fb/gdkrender-fb.c: Don't update to the shadow fb if we're blocked by the fb manager.
76 lines
1.8 KiB
C
76 lines
1.8 KiB
C
#include <glib.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/un.h>
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#include "gdkfbmanager.h"
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int
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main (int argc, char *argv[])
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{
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int fd;
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struct sockaddr_un addr;
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struct msghdr msg = {0};
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struct cmsghdr *cmsg;
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struct ucred credentials;
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struct FBManagerMessage init_msg;
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struct iovec iov;
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char buf[CMSG_SPACE (sizeof (credentials))]; /* ancillary data buffer */
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int *fdptr;
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int res;
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if (argc != 2)
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{
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g_print ("usage: fbswitch <pid>\n");
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return 1;
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}
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fd = socket (PF_UNIX, SOCK_STREAM, 0);
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if (fd < 0)
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return 1;
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addr.sun_family = AF_UNIX;
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strcpy (addr.sun_path, "/tmp/.fb.manager");
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if (connect(fd, (struct sockaddr *)&addr, sizeof (addr)) < 0)
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{
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g_print ("connect failed\n");
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close (fd);
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return 1;
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}
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credentials.pid = getpid ();
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credentials.uid = geteuid ();
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credentials.gid = getegid ();
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init_msg.msg_type = FB_MANAGER_NEW_CLIENT;
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iov.iov_base = &init_msg;
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iov.iov_len = sizeof (init_msg);
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msg.msg_name = NULL;
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msg.msg_namelen = 0;
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msg.msg_iov = &iov;
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msg.msg_iovlen = 1;
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msg.msg_control = buf;
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msg.msg_controllen = sizeof buf;
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cmsg = CMSG_FIRSTHDR(&msg);
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cmsg->cmsg_level = SOL_SOCKET;
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cmsg->cmsg_type = SCM_CREDENTIALS;
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cmsg->cmsg_len = CMSG_LEN (sizeof (credentials));
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/* Initialize the payload: */
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fdptr = (int *)CMSG_DATA (cmsg);
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memcpy (fdptr, &credentials, sizeof (credentials));
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/* Sum of the length of all control messages in the buffer: */
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msg.msg_controllen = cmsg->cmsg_len;
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res = sendmsg (fd, &msg, 0);
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init_msg.msg_type = FB_MANAGER_REQUEST_SWITCH_TO_PID;
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init_msg.data = atoi (argv[1]);
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/* Request a switch-to */
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send (fd, &init_msg, sizeof (init_msg), 0);
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g_print ("requested a switch to pid %d\n", init_msg.data);
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}
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