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Revised error handling

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- Functions warn() and die() replaced by GNU-like error(3) function
- Register cleanup() with atexit(3)
- Functions called by cleanup() are marked with CLEANUP and are not allowed to
  call exit(3)
This commit is contained in:
Bert Münnich
2015-10-28 23:03:37 +01:00
parent 851e4288c1
commit d3a70a285d
12 changed files with 106 additions and 136 deletions
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16
window.c
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@ -80,7 +80,7 @@ void win_init_font(Display *dpy, const char *fontstr)
if ((font.xfont = XLoadQueryFont(dpy, fontstr)) == NULL &&
(font.xfont = XLoadQueryFont(dpy, "fixed")) == NULL)
{
die("could not load font: %s", fontstr);
error(EXIT_FAILURE, 0, "Error loading font '%s'", fontstr);
}
font.ascent = font.xfont->ascent;
font.descent = font.xfont->descent;
@ -97,7 +97,7 @@ unsigned long win_alloc_color(win_t *win, const char *name)
DefaultColormap(win->env.dpy, win->env.scr),
name, &col, &col) == 0)
{
die("could not allocate color: %s", name);
error(EXIT_FAILURE, 0, "Error allocating color '%s'", name);
}
return col.pixel;
}
@ -143,7 +143,7 @@ void win_init(win_t *win)
e = &win->env;
if ((e->dpy = XOpenDisplay(NULL)) == NULL)
die("could not open display");
error(EXIT_FAILURE, 0, "Error opening X display");
e->scr = DefaultScreen(e->dpy);
e->scrw = DisplayWidth(e->dpy, e->scr);
@ -153,7 +153,7 @@ void win_init(win_t *win)
e->depth = DefaultDepth(e->dpy, e->scr);
if (setlocale(LC_CTYPE, "") == NULL || XSupportsLocale() == 0)
warn("no locale support");
error(0, 0, "No locale support");
win_init_font(e->dpy, BAR_FONT);
@ -236,7 +236,7 @@ void win_open(win_t *win)
win->x, win->y, win->w, win->h, 0,
e->depth, InputOutput, e->vis, 0, NULL);
if (win->xwin == None)
die("could not create window");
error(EXIT_FAILURE, 0, "Error creating X window");
XSelectInput(e->dpy, win->xwin,
ButtonReleaseMask | ButtonPressMask | KeyPressMask |
@ -249,7 +249,7 @@ void win_open(win_t *win)
if (XAllocNamedColor(e->dpy, DefaultColormap(e->dpy, e->scr), "black",
&col, &col) == 0)
{
die("could not allocate color: black");
error(EXIT_FAILURE, 0, "Error allocating color 'black'");
}
none = XCreateBitmapFromData(e->dpy, win->xwin, none_data, 8, 8);
cnone = XCreatePixmapCursor(e->dpy, none, none, &col, &col, 0, 0);
@ -306,7 +306,7 @@ void win_open(win_t *win)
win_toggle_fullscreen(win);
}
void win_close(win_t *win)
CLEANUP void win_close(win_t *win)
{
XFreeCursor(win->env.dpy, carrow);
XFreeCursor(win->env.dpy, cnone);
@ -341,7 +341,7 @@ void win_toggle_fullscreen(win_t *win)
if (!fs_support) {
if (!fs_warned) {
warn("window manager does not support fullscreen");
error(0, 0, "No fullscreen support");
fs_warned = True;
}
return;