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Somewhat streamline event loop/restart/quit handling; most notable

Browse Source 
change allows a restart to trigger proper teardown first, even though
teardown is not (yet) complete.

After some discussion with oga@nicotinebsd.org regarding a more
complicated version/idea.
This commit is contained in:
okan 2014-01-22 21:48:27 +00:00
parent ac3162439a
commit 77aa5ac45b
5 changed files with 31 additions and 28 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
calmwm.c
View File

@ -47,10 +47,12 @@ struct client_ctx_q Clientq = TAILQ_HEAD_INITIALIZER(Clientq);
int HasRandr, Randr_ev;
struct conf Conf;
const char *homedir;
volatile sig_atomic_t cwm_status;
static void sigchld_cb(int);
static int x_errorhandler(Display *, XErrorEvent *);
static void x_init(const char *);
static void x_restart(void);
static void x_teardown(void);
static int x_wmerrorhandler(Display *, XErrorEvent *);
@ -111,8 +113,12 @@ main(int argc, char **argv)
free(conf_path);
x_init(display_name);
xev_loop();
cwm_status = CWM_RUNNING;
while (cwm_status == CWM_RUNNING)
xev_process();
x_teardown();
if (cwm_status == CWM_RESTART)
x_restart();
return (0);
}
@ -140,6 +146,13 @@ x_init(const char *dpyname)
screen_init(i);
}
static void
x_restart(void)
{
(void)setsid();
(void)execvp(cwm_argv[0], cwm_argv);
}
static void
x_teardown(void)
{

10
calmwm.h
View File

@ -85,6 +85,10 @@
#define CWM_WIN 0x0001
#define CWM_QUIT 0x0000
#define CWM_RUNNING 0x0001
#define CWM_RESTART 0x0002
union arg {
char *c;
int i;
@ -327,6 +331,7 @@ extern struct client_ctx_q Clientq;
extern struct conf Conf;
extern const char *homedir;
extern int HasRandr, Randr_ev;
extern volatile sig_atomic_t cwm_status;
enum {
WM_STATE,
@ -473,11 +478,10 @@ void kbfunc_client_search(struct client_ctx *, union arg *);
void kbfunc_client_vmaximize(struct client_ctx *,
union arg *);
void kbfunc_cmdexec(struct client_ctx *, union arg *);
void kbfunc_cwm_status(struct client_ctx *, union arg *);
void kbfunc_exec(struct client_ctx *, union arg *);
void kbfunc_lock(struct client_ctx *, union arg *);
void kbfunc_menu_search(struct client_ctx *, union arg *);
void kbfunc_quit_wm(struct client_ctx *, union arg *);
void kbfunc_restart(struct client_ctx *, union arg *);
void kbfunc_ssh(struct client_ctx *, union arg *);
void kbfunc_term(struct client_ctx *, union arg *);
void kbfunc_tile(struct client_ctx *, union arg *);
@ -527,7 +531,7 @@ void conf_init(struct conf *);
void conf_ignore(struct conf *, const char *);
void conf_screen(struct screen_ctx *);
void xev_loop(void);
void xev_process(void);
void xu_btn_grab(Window, int, unsigned int);
void xu_btn_ungrab(Window);

4
conf.c
View File

@ -373,8 +373,8 @@ static const struct {
{ "vmaximize", kbfunc_client_vmaximize, CWM_WIN, {0} },
{ "hmaximize", kbfunc_client_hmaximize, CWM_WIN, {0} },
{ "freeze", kbfunc_client_freeze, CWM_WIN, {0} },
{ "restart", kbfunc_restart, 0, {0} },
{ "quit", kbfunc_quit_wm, 0, {0} },
{ "restart", kbfunc_cwm_status, 0, {.i = CWM_RESTART} },
{ "quit", kbfunc_cwm_status, 0, {.i = CWM_QUIT} },
{ "exec", kbfunc_exec, 0, {.i = CWM_EXEC_PROGRAM} },
{ "exec_wm", kbfunc_exec, 0, {.i = CWM_EXEC_WM} },
{ "ssh", kbfunc_ssh, 0, {0} },

14
kbfunc.c
View File

@ -35,9 +35,6 @@
#define HASH_MARKER "|1|"
extern char **cwm_argv;
extern sig_atomic_t xev_quit;
void
kbfunc_client_lower(struct client_ctx *cc, union arg *arg)
{
@ -464,16 +461,9 @@ kbfunc_client_freeze(struct client_ctx *cc, union arg *arg)
}
void
kbfunc_quit_wm(struct client_ctx *cc, union arg *arg)
kbfunc_cwm_status(struct client_ctx *cc, union arg *arg)
{
xev_quit = 1;
}
void
kbfunc_restart(struct client_ctx *cc, union arg *arg)
{
(void)setsid();
(void)execvp(cwm_argv[0], cwm_argv);
cwm_status = arg->i;
}
void

16
xevents.c
View File

@ -400,18 +400,14 @@ xev_handle_expose(XEvent *ee)
client_draw_border(cc);
}
volatile sig_atomic_t xev_quit = 0;
void
xev_loop(void)
xev_process(void)
{
XEvent e;
while (xev_quit == 0) {
XNextEvent(X_Dpy, &e);
if (e.type - Randr_ev == RRScreenChangeNotify)
xev_handle_randr(&e);
else if (e.type < LASTEvent && xev_handlers[e.type] != NULL)
(*xev_handlers[e.type])(&e);
}
XNextEvent(X_Dpy, &e);
if (e.type - Randr_ev == RRScreenChangeNotify)
xev_handle_randr(&e);
else if (e.type < LASTEvent && xev_handlers[e.type] != NULL)
(*xev_handlers[e.type])(&e);
}