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atexit cleanup

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This commit is contained in:
Connor Lane Smith
2010-07-02 03:44:01 +01:00
parent 6ba5103df4
commit d9c24564d2
2 changed files with 36 additions and 46 deletions
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35
dinput.c
View File

@@ -26,7 +26,7 @@ static void drawinput(void);
static Bool grabkeyboard(void);
static void kpress(XKeyEvent *e);
static void run(void);
static void setup(Bool topbar);
static void setup(void);
#include "config.h"
@@ -34,14 +34,13 @@ static void setup(Bool topbar);
static char *prompt = NULL;
static char text[4096];
static int promptw = 0;
static int ret = 0;
static int screen;
static unsigned int cursor = 0;
static unsigned int numlockmask = 0;
static unsigned int mw, mh;
static unsigned long normcol[ColLast];
static unsigned long selcol[ColLast];
static Bool running = True;
static Bool topbar = True;
static DC dc;
static Display *dpy;
static Window win, root;
@@ -51,6 +50,7 @@ cleanup(void) {
cleanupdraw(&dc);
XDestroyWindow(dpy, win);
XUngrabKeyboard(dpy, CurrentTime);
XCloseDisplay(dpy);
}
void
@@ -81,7 +81,6 @@ drawinput(void)
drawtext(&dc, *text ? text : NULL, normcol, False);
drawcursor();
XCopyArea(dpy, dc.drawable, win, dc.gc, 0, 0, mw, mh, 0, 0);
XFlush(dpy);
}
Bool
@@ -200,9 +199,7 @@ kpress(XKeyEvent *e) {
cursor = len;
break;
case XK_Escape:
ret = 1;
running = False;
return;
exit(EXIT_FAILURE);
case XK_Home:
cursor = 0;
break;
@@ -214,8 +211,7 @@ kpress(XKeyEvent *e) {
case XK_Return:
fprintf(stdout, "%s", text);
fflush(stdout);
running = False;
return;
exit(EXIT_SUCCESS);
case XK_Right:
if(cursor == len)
return;
@@ -230,7 +226,8 @@ run(void) {
XEvent ev;
/* main event loop */
while(running && !XNextEvent(dpy, &ev))
XSync(dpy, False);
while(!XNextEvent(dpy, &ev))
switch(ev.type) {
case KeyPress:
kpress(&ev.xkey);
@@ -240,14 +237,15 @@ run(void) {
drawinput();
break;
case VisibilityNotify:
if (ev.xvisibility.state != VisibilityUnobscured)
if(ev.xvisibility.state != VisibilityUnobscured)
XRaiseWindow(dpy, win);
break;
}
exit(EXIT_FAILURE);
}
void
setup(Bool topbar) {
setup(void) {
int i, j, x, y;
#if XINERAMA
int n;
@@ -320,7 +318,6 @@ setup(Bool topbar) {
int
main(int argc, char *argv[]) {
unsigned int i;
Bool topbar = True;
/* command line args */
progname = "dinput";
@@ -364,15 +361,13 @@ main(int argc, char *argv[]) {
fprintf(stderr, "dinput: warning: no locale support\n");
if(!(dpy = XOpenDisplay(NULL)))
eprint("cannot open display\n");
if(atexit(&cleanup) != 0)
eprint("cannot register cleanup\n");
screen = DefaultScreen(dpy);
root = RootWindow(dpy, screen);
running = grabkeyboard();
setup(topbar);
drawinput();
XSync(dpy, False);
grabkeyboard();
setup();
run();
cleanup();
XCloseDisplay(dpy);
return ret;
return 0;
}

47
dmenu.c
View File

@@ -36,7 +36,7 @@ static void dinput(void);
static void drawmenu(void);
static void drawmenuh(void);
static void drawmenuv(void);
static Bool grabkeyboard(void);
static void grabkeyboard(void);
static void kpress(XKeyEvent *e);
static void match(char *pattern);
static void readstdin(void);
@@ -52,14 +52,12 @@ static char *prompt = NULL;
static char text[4096];
static int cmdw = 0;
static int promptw = 0;
static int ret = 0;
static int screen;
static unsigned int lines = 0;
static unsigned int numlockmask = 0;
static unsigned int mw, mh;
static unsigned long normcol[ColLast];
static unsigned long selcol[ColLast];
static Bool running = True;
static Bool topbar = True;
static DC dc;
static Display *dpy;
@@ -87,15 +85,15 @@ appenditem(Item *i, Item **list, Item **last) {
void
calcoffsetsh(void) {
unsigned int w;
unsigned int x;
w = promptw + cmdw + (2 * spaceitem);
x = promptw + cmdw + (2 * spaceitem);
for(next = curr; next; next = next->right)
if((w += MIN(textw(&dc, next->text), mw / 3)) > mw)
if((x += MIN(textw(&dc, next->text), mw / 3)) > mw)
break;
w = promptw + cmdw + (2 * spaceitem);
x = promptw + cmdw + (2 * spaceitem);
for(prev = curr; prev && prev->left; prev = prev->left)
if((w += MIN(textw(&dc, prev->left->text), mw / 3)) > mw)
if((x += MIN(textw(&dc, prev->left->text), mw / 3)) > mw)
break;
}
@@ -146,6 +144,7 @@ cleanup(void) {
cleanupdraw(&dc);
XDestroyWindow(dpy, win);
XUngrabKeyboard(dpy, CurrentTime);
XCloseDisplay(dpy);
}
void
@@ -182,7 +181,6 @@ drawmenu(void) {
else if(curr)
drawmenuh();
XCopyArea(dpy, dc.drawable, win, dc.gc, 0, 0, mw, mh, 0, 0);
XFlush(dpy);
}
void
@@ -219,7 +217,7 @@ drawmenuv(void) {
XMoveResizeWindow(dpy, win, wa.x, wa.y + (topbar ? 0 : wa.height - mh), mw, mh);
}
Bool
void
grabkeyboard(void) {
unsigned int len;
@@ -229,7 +227,8 @@ grabkeyboard(void) {
break;
usleep(1000);
}
return len > 0;
if(!len)
exit(EXIT_FAILURE);
}
void
@@ -326,9 +325,7 @@ kpress(XKeyEvent *e) {
sel = sel->right;
break;
case XK_Escape:
ret = 1;
running = False;
return;
exit(EXIT_FAILURE);
case XK_Home:
sel = curr = item;
calcoffsets();
@@ -360,8 +357,7 @@ kpress(XKeyEvent *e) {
dinput();
fprintf(stdout, "%s", sel ? sel->text : text);
fflush(stdout);
running = False;
return;
exit(EXIT_SUCCESS);
case XK_Right:
case XK_Down:
if(!sel || !sel->right)
@@ -454,7 +450,8 @@ run(void) {
XEvent ev;
/* main event loop */
while(running && !XNextEvent(dpy, &ev))
XSync(dpy, False);
while(!XNextEvent(dpy, &ev))
switch(ev.type) {
case KeyPress:
kpress(&ev.xkey);
@@ -464,10 +461,11 @@ run(void) {
drawmenu();
break;
case VisibilityNotify:
if (ev.xvisibility.state != VisibilityUnobscured)
if(ev.xvisibility.state != VisibilityUnobscured)
XRaiseWindow(dpy, win);
break;
}
exit(EXIT_FAILURE);
}
void
@@ -586,13 +584,15 @@ main(int argc, char *argv[]) {
}
else {
fputs("usage: dmenu [-i] [-b] [-l <lines>] [-fn <font>] [-nb <color>]\n"
" [-nf <color>] [-p <prompt>] [-sb <color>] [-sf <color>] [-v]\n", stderr);
" [-nf <color>] [-p <prompt>] [-sb <color>] [-sf <color>] [-v]\n", stderr);
exit(EXIT_FAILURE);
}
if(!setlocale(LC_CTYPE, "") || !XSupportsLocale())
fprintf(stderr, "dmenu: warning: no locale support\n");
if(!(dpy = XOpenDisplay(NULL)))
eprint("cannot open display\n");
if(atexit(&cleanup) != 0)
eprint("cannot register cleanup\n");
screen = DefaultScreen(dpy);
root = RootWindow(dpy, screen);
if(!(argp = malloc(sizeof *argp * (argc+2))))
@@ -600,13 +600,8 @@ main(int argc, char *argv[]) {
memcpy(argp + 2, argv + 1, sizeof *argp * argc);
readstdin();
running = grabkeyboard();
grabkeyboard();
setup();
drawmenu();
XSync(dpy, False);
run();
cleanup();
XCloseDisplay(dpy);
return ret;
return 0;
}