merged with master

Makefile

@@ -1,14 +1,15 @@
 .POSIX:
 
 PREFIX = /usr/local
+CC = gcc
 
-output: dwmblocks.o
-	gcc dwmblocks.o -lX11 -o dwmblocks
+dwmblocks: dwmblocks.o
+	$(CC) dwmblocks.o -lX11 -o dwmblocks
 dwmblocks.o: dwmblocks.c config.h
-	gcc -c -lX11 dwmblocks.c
+	$(CC) -c dwmblocks.c
 clean:
 	rm -f *.o *.gch dwmblocks
-install: output
+install: dwmblocks
 	mkdir -p $(DESTDIR)$(PREFIX)/bin
 	cp -f dwmblocks $(DESTDIR)$(PREFIX)/bin
 	chmod 755 $(DESTDIR)$(PREFIX)/bin/dwmblocks

README.md

@@ -31,9 +31,7 @@ but is faster.  Just add 34 to your typical signal number.
 My volume module *never* updates on its own, instead I have this command run
 along side my volume shortcuts in dwm to only update it when relevant.
 
-Note that if you signal an unexpected signal to dwmblocks, it will probably
-crash. So if you disable a module, remember to also disable any cronjobs or
-other scripts that might signal to that module.
+Note that all modules must have different signal numbers.
 
 # Clickable modules
 

config.h

@@ -14,7 +14,3 @@ static const Block blocks[] = {
 	{"",	"battery",	5,	3},
 	{"",	"clock",	1,	1},
 };
-
-//sets delimeter between status commands. NULL character ('\0') means no delimeter.
-static char *delim = "|";
-

dwmblocks.c

@@ -114,6 +114,10 @@ void getsigcmds(int signal)
 void setupsignals()
 {
 	struct sigaction sa;
+
+	for(int i = SIGRTMIN; i <= SIGRTMAX; i++)
+		signal(i, SIG_IGN);
+
 	for(int i = 0; i < LENGTH(blocks); i++)
 	{
 		if (blocks[i].signal > 0)
@@ -210,6 +214,7 @@ void sighandler(int signum)
 void buttonhandler(int sig, siginfo_t *si, void *ucontext)
 {
 	char button[2] = {'0' + si->si_value.sival_int & 0xff, '\0'};
+	pid_t process_id = getpid();
 	sig = si->si_value.sival_int >> 8;
 	if (fork() == 0)
 	{
@@ -220,14 +225,14 @@ void buttonhandler(int sig, siginfo_t *si, void *ucontext)
 			if (current->signal == sig)
 				break;
 		}
-		char *command[] = { "/bin/sh", "-c", current->command, NULL };
+		char shcmd[1024];
+		sprintf(shcmd,"%s && kill -%d %d",current->command, current->signal+34,process_id);
+		char *command[] = { "/bin/sh", "-c", shcmd, NULL };
 		setenv("BLOCK_BUTTON", button, 1);
 		setsid();
 		execvp(command[0], command);
 		exit(EXIT_SUCCESS);
 	}
-	getsigcmds(sig);
-	writestatus();
 }
 
 #endif