* - tour - touring some programming systems

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author	elioat <elioat@tilde.institute>	2024-12-22 11:31:32 -0500
committer	elioat <elioat@tilde.institute>	2024-12-22 11:31:32 -0500
commit	cf1789eb681a648b164c69e337ac622251423e85 (patch)
tree	e3cb8512a07b6c9a47c188759be3b84d45774b2a /html/schemer/tls.pdf
parent	963b95ae7696d61065362a707621ddfa5248dd7c (diff)
download	tour-cf1789eb681a648b164c69e337ac622251423e85.tar.gz

Diffstat (limited to 'html/schemer/tls.pdf')

0 files changed, 0 insertions, 0 deletions

/* * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com> * See LICENSE file for license details. */ #include "dwm.h" #include <errno.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <sys/select.h> #include <X11/cursorfont.h> #include <X11/Xatom.h> #include <X11/Xproto.h> /* static */ static int (*xerrorxlib)(Display *, XErrorEvent *); static Bool otherwm; static void cleanup() { while(sel) { resize(sel, True, TopLeft); unmanage(sel); } XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime); } static void scan() { unsigned int i, num; Window *wins, d1, d2; XWindowAttributes wa; if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) { for(i = 0; i < num; i++) { if(!XGetWindowAttributes(dpy, wins[i], &wa)) continue; if(wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1)) continue; if(wa.map_state == IsViewable) manage(wins[i], &wa); } } if(wins) XFree(wins); } static int win_property(Window w, Atom a, Atom t, long l, unsigned char **prop) { int status, format; unsigned long res, extra; Atom real; status = XGetWindowProperty(dpy, w, a, 0L, l, False, t, &real, &format, &res, &extra, prop); if(status != Success || *prop == 0) { return 0; } if(res == 0) { free((void *) *prop); } return res; } /* * Startup Error handler to check if another window manager * is already running. */ static int xerrorstart(Display *dsply, XErrorEvent *ee) { otherwm = True; return -1; } /* extern */ char stext[1024]; Bool *seltag; int screen, sx, sy, sw, sh, bx, by, bw, bh, mw; unsigned int ntags; Atom wmatom[WMLast], netatom[NetLast]; Bool running = True; Bool issel = True; Client *clients = NULL; Client *sel = NULL; Cursor cursor[CurLast]; Display *dpy; DC dc = {0}; Window root, barwin; int getproto(Window w) { int protos = 0; int i; long res; Atom *protocols; res = win_property(w, wmatom[WMProtocols], XA_ATOM, 20L, ((unsigned char **)&protocols)); if(res <= 0) { return protos; } for(i = 0; i < res; i++) { if(protocols[i] == wmatom[WMDelete]) protos |= PROTODELWIN; } free((char *) protocols); return protos; } void sendevent(Window w, Atom a, long value) { XEvent e; e.type = ClientMessage; e.xclient.window = w; e.xclient.message_type = a; e.xclient.format = 32; e.xclient.data.l[0] = value; e.xclient.data.l[1] = CurrentTime; XSendEvent(dpy, w, False, NoEventMask, &e); XSync(dpy, False); } void quit(Arg *arg) { running = False; } /* * There's no way to check accesses to destroyed windows, thus those cases are * ignored (especially on UnmapNotify's). Other types of errors call Xlibs * default error handler, which calls exit(). */ int xerror(Display *dpy, XErrorEvent *ee) { if(ee->error_code == BadWindow || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch) || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable) || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable) || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable) || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch) || (ee->request_code == X_GrabKey && ee->error_code == BadAccess)) return 0; fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n", ee->request_code, ee->error_code); return xerrorxlib(dpy, ee); /* may call exit() */ } int main(int argc, char *argv[]) { int i; unsigned int mask; fd_set rd; Bool readin = True; Window w; XEvent ev; XSetWindowAttributes wa; if(argc == 2 && !strncmp("-v", argv[1], 3)) { fputs("dwm-"VERSION", (C)opyright MMVI Anselm R. Garbe\n", stdout); exit(EXIT_SUCCESS); } else if(argc != 1) eprint("usage: dwm [-v]\n"); dpy = XOpenDisplay(0); if(!dpy) eprint("dwm: cannot open display\n"); screen = DefaultScreen(dpy); root = RootWindow(dpy, screen); otherwm = False; XSetErrorHandler(xerrorstart); /* this causes an error if some other window manager is running */ XSelectInput(dpy, root, SubstructureRedirectMask); XSync(dpy, False); if(otherwm) eprint("dwm: another window manager is already running\n"); XSetErrorHandler(NULL); xerrorxlib = XSetErrorHandler(xerror); /* init atoms */ wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False); wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False); netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False); netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False); XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32, PropModeReplace, (unsigned char *) netatom, NetLast); /* init cursors */ cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr); cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing); cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur); grabkeys(); initrregs(); for(ntags = 0; tags[ntags]; ntags++); seltag = emallocz(sizeof(Bool) * ntags); seltag[DEFTAG] = True; /* style */ dc.bg = getcolor(BGCOLOR); dc.fg = getcolor(FGCOLOR); dc.border = getcolor(BORDERCOLOR); setfont(FONT); sx = sy = 0; sw = DisplayWidth(dpy, screen); sh = DisplayHeight(dpy, screen); mw = (sw * MASTERW) / 100; wa.override_redirect = 1; wa.background_pixmap = ParentRelative; wa.event_mask = ButtonPressMask | ExposureMask; bx = by = 0; bw = sw; dc.h = bh = dc.font.height + 4; barwin = XCreateWindow(dpy, root, bx, by, bw, bh, 0, DefaultDepth(dpy, screen), CopyFromParent, DefaultVisual(dpy, screen), CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa); XDefineCursor(dpy, barwin, cursor[CurNormal]); XMapRaised(dpy, barwin); dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen)); dc.gc = XCreateGC(dpy, root, 0, 0); strcpy(stext, "dwm-"VERSION); drawstatus(); issel = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask); wa.event_mask = SubstructureRedirectMask | EnterWindowMask | LeaveWindowMask; wa.cursor = cursor[CurNormal]; XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa); scan(); /* main event loop, also reads status text from stdin */ XSync(dpy, False); while(running) { FD_ZERO(&rd); if(readin) FD_SET(STDIN_FILENO, &rd); FD_SET(ConnectionNumber(dpy), &rd); i = select(ConnectionNumber(dpy) + 1, &rd, 0, 0, 0); if(i == -1 && errno == EINTR) continue; if(i < 0) eprint("select failed\n"); else if(i > 0) { if(FD_ISSET(ConnectionNumber(dpy), &rd)) { while(XPending(dpy)) { XNextEvent(dpy, &ev); if(handler[ev.type]) (handler[ev.type])(&ev); /* call handler */ } } if(readin && FD_ISSET(STDIN_FILENO, &rd)) { readin = NULL != fgets(stext, sizeof(stext), stdin); if(readin) stext[strlen(stext) - 1] = 0; else strcpy(stext, "broken pipe"); drawstatus(); } } } cleanup(); XCloseDisplay(dpy); return 0; }


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