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- #include <X11/Xlib-xcb.h>
- #include <xcb/res.h>
- #ifdef __OpenBSD__
- #include <sys/sysctl.h>
- #include <kvm.h>
- #endif /* __OpenBSD__ */
- static int scanner;
- static xcb_connection_t *xcon;
- int
- swallow(Client *p, Client *c)
- {
- Client *s;
- XWindowChanges wc;
- if (c->noswallow > 0 || c->isterminal)
- return 0;
- if (c->noswallow < 0 && !swallowfloating && c->isfloating)
- return 0;
- XMapWindow(dpy, c->win);
- detach(c);
- detachstack(c);
- setclientstate(c, WithdrawnState);
- XUnmapWindow(dpy, p->win);
- p->swallowing = c;
- c->mon = p->mon;
- Window w = p->win;
- p->win = c->win;
- c->win = w;
- XChangeProperty(dpy, c->win, netatom[NetClientList], XA_WINDOW, 32, PropModeReplace,
- (unsigned char *) &(p->win), 1);
- updatetitle(p);
- s = scanner ? c : p;
- setfloatinghint(s);
- wc.border_width = p->bw;
- XConfigureWindow(dpy, p->win, CWBorderWidth, &wc);
- XMoveResizeWindow(dpy, p->win, s->x, s->y, s->w, s->h);
- XSetWindowBorder(dpy, p->win, scheme[SchemeNorm][ColBorder].pixel);
- arrange(p->mon);
- configure(p);
- updateclientlist();
- return 1;
- }
- void
- unswallow(Client *c)
- {
- XWindowChanges wc;
- c->win = c->swallowing->win;
- free(c->swallowing);
- c->swallowing = NULL;
- XDeleteProperty(dpy, c->win, netatom[NetClientList]);
- /* unfullscreen the client */
- setfullscreen(c, 0);
- updatetitle(c);
- arrange(c->mon);
- XMapWindow(dpy, c->win);
- wc.border_width = c->bw;
- XConfigureWindow(dpy, c->win, CWBorderWidth, &wc);
- XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
- XSetWindowBorder(dpy, c->win, scheme[SchemeNorm][ColBorder].pixel);
- setfloatinghint(c);
- setclientstate(c, NormalState);
- arrange(c->mon);
- focus(NULL);
- }
- pid_t
- winpid(Window w)
- {
- pid_t result = 0;
- #ifdef __linux__
- xcb_res_client_id_spec_t spec = {0};
- spec.client = w;
- spec.mask = XCB_RES_CLIENT_ID_MASK_LOCAL_CLIENT_PID;
- xcb_generic_error_t *e = NULL;
- xcb_res_query_client_ids_cookie_t c = xcb_res_query_client_ids(xcon, 1, &spec);
- xcb_res_query_client_ids_reply_t *r = xcb_res_query_client_ids_reply(xcon, c, &e);
- if (!r)
- return (pid_t)0;
- xcb_res_client_id_value_iterator_t i = xcb_res_query_client_ids_ids_iterator(r);
- for (; i.rem; xcb_res_client_id_value_next(&i)) {
- spec = i.data->spec;
- if (spec.mask & XCB_RES_CLIENT_ID_MASK_LOCAL_CLIENT_PID) {
- uint32_t *t = xcb_res_client_id_value_value(i.data);
- result = *t;
- break;
- }
- }
- free(r);
- if (result == (pid_t)-1)
- result = 0;
- #endif /* __linux__ */
- #ifdef __OpenBSD__
- Atom type;
- int format;
- unsigned long len, bytes;
- unsigned char *prop;
- pid_t ret;
- if (XGetWindowProperty(dpy, w, XInternAtom(dpy, "_NET_WM_PID", 1), 0, 1, False, AnyPropertyType, &type, &format, &len, &bytes, &prop) != Success || !prop)
- return 0;
- ret = *(pid_t*)prop;
- XFree(prop);
- result = ret;
- #endif /* __OpenBSD__ */
- return result;
- }
- pid_t
- getparentprocess(pid_t p)
- {
- unsigned int v = 0;
- #ifdef __linux__
- FILE *f;
- char buf[256];
- snprintf(buf, sizeof(buf) - 1, "/proc/%u/stat", (unsigned)p);
- if (!(f = fopen(buf, "r")))
- return (pid_t)0;
- if (fscanf(f, "%*u %*s %*c %u", (unsigned *)&v) != 1)
- v = (pid_t)0;
- fclose(f);
- #endif /* __linux__ */
- #ifdef __OpenBSD__
- int n;
- kvm_t *kd;
- struct kinfo_proc *kp;
- kd = kvm_openfiles(NULL, NULL, NULL, KVM_NO_FILES, NULL);
- if (!kd)
- return 0;
- kp = kvm_getprocs(kd, KERN_PROC_PID, p, sizeof(*kp), &n);
- v = kp->p_ppid;
- #endif /* __OpenBSD__ */
- return (pid_t)v;
- }
- int
- isdescprocess(pid_t p, pid_t c)
- {
- while (p != c && c != 0)
- c = getparentprocess(c);
- return (int)c;
- }
- Client *
- termforwin(const Client *w)
- {
- Client *c;
- Monitor *m;
- if (!w->pid || w->isterminal)
- return NULL;
- c = selmon->sel;
- if (c && c->isterminal && !c->swallowing && c->pid && isdescprocess(c->pid, w->pid))
- return c;
- for (m = mons; m; m = m->next) {
- for (c = m->clients; c; c = c->next) {
- if (c->isterminal && !c->swallowing && c->pid && isdescprocess(c->pid, w->pid))
- return c;
- }
- }
- return NULL;
- }
- Client *
- swallowingclient(Window w)
- {
- Client *c;
- Monitor *m;
- for (m = mons; m; m = m->next) {
- for (c = m->clients; c; c = c->next) {
- if (c->swallowing && c->swallowing->win == w)
- return c;
- }
- }
- return NULL;
- }
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