.clang-format

@@ -1,2 +0,0 @@
-BasedOnStyle: Google
-IndentWidth: 4

Makefile

@@ -1,21 +1,19 @@
 .POSIX:
 
 PREFIX = /usr/local
-CFLAGS = -Ofast
-LDLIBS = -lX11
-
-BIN = dwmblocks
-
-$(BIN): main.o
-	$(CC) $^ -o $@ $(LDLIBS)
+CC = gcc
 
+dwmblocks: main.o
+	$(CC) main.o -lX11 -Ofast -o dwmblocks
+main.o: main.c config.h
+	$(CC) -Ofast -c main.c
 clean:
-	$(RM) *.o $(BIN)
-
-install: $(BIN)
-	install -D -m 755 $(BIN) $(DESTDIR)$(PREFIX)/bin/$(BIN)
-
+	rm -f *.o *.gch dwmblocks
+install: dwmblocks
+	mkdir -p $(DESTDIR)$(PREFIX)/bin
+	cp -f dwmblocks $(DESTDIR)$(PREFIX)/bin
+	chmod 755 $(DESTDIR)$(PREFIX)/bin/dwmblocks
 uninstall:
-	$(RM) $(DESTDIR)$(PREFIX)/bin/$(BIN)
+	rm -f $(DESTDIR)$(PREFIX)/bin/dwmblocks
 
 .PHONY: clean install uninstall

README.md

@@ -125,6 +125,8 @@ To use this feature, define the `CLICKABLE_BLOCKS` feature macro in your `config
 
 Apart from that, you need `dwm` to be patched with [statuscmd](https://dwm.suckless.org/patches/statuscmd/).
 
+> Earlier, `dwmblocks-async` used to require a patch to be applied to `dwm`. However, the code has been redone so there's no need to apply that patch anymore. 
+
 
 ## Credits
 This work would not have been possible without [Luke's build of dwmblocks](https://github.com/LukeSmithxyz/dwmblocks) and [Daniel Bylinka's statuscmd patch](https://dwm.suckless.org/patches/statuscmd/).

main.c

@@ -15,7 +15,7 @@
 	{ "echo \"$(" cmd ")\"", interval, signal }
 
 typedef const struct {
-    const char *command;
+	const char* command;
 	const unsigned int interval;
 	const unsigned int signal;
 } Block;
@@ -35,7 +35,7 @@ typedef const struct {
 #define LEADING_DELIMITER 0
 #endif
 
-static Display *dpy;
+static Display* dpy;
 static int screen;
 static Window root;
 static unsigned short statusContinue = 1;
@@ -48,10 +48,7 @@ static int execLock = 0;
 
 // Longest UTF-8 character is 4 bytes long
 static char outputs[LEN(blocks)][CMDLENGTH * 4 + 1 + CLICKABLE_BLOCKS];
-static char
-    statusBar[2]
-             [LEN(blocks) * (LEN(outputs[0]) - 1) +
-              (LEN(blocks) - 1 + LEADING_DELIMITER) * (LEN(DELIMITER) - 1) + 1];
+static char statusBar[2][LEN(blocks) * (LEN(outputs[0]) - 1) + (LEN(blocks) - 1 + LEADING_DELIMITER) * (LEN(DELIMITER) - 1) + 1];
 
 void (*writeStatus)();
 
@@ -65,14 +62,15 @@ int gcd(int a, int b) {
 	return a;
 }
 
-void closePipe(int *pipe) {
+void closePipe(int* pipe) {
 	close(pipe[0]);
 	close(pipe[1]);
 }
 
-void execBlock(int i, const char *button) {
+void execBlock(int i, const char* button) {
 	// Ensure only one child process exists per block at an instance
-    if (execLock & 1 << i) return;
+	if (execLock & 1 << i)
+		return;
 	// Lock execution of block until current instance finishes execution
 	execLock |= 1 << i;
 
@@ -81,20 +79,20 @@ void execBlock(int i, const char *button) {
 		dup2(pipes[i][1], STDOUT_FILENO);
 		close(pipes[i][1]);
 
-        if (button) setenv("BLOCK_BUTTON", button, 1);
-        execl("/bin/sh", "sh", "-c", blocks[i].command, (char *)NULL);
-        exit(EXIT_FAILURE);
+		if (button)
+			setenv("BLOCK_BUTTON", button, 1);
+		execl("/bin/sh", "sh", "-c", blocks[i].command, (char*)NULL);
+		_exit(1);
 	}
 }
 
 void execBlocks(unsigned int time) {
 	for (int i = 0; i < LEN(blocks); i++)
-        if (time == 0 ||
-            (blocks[i].interval != 0 && time % blocks[i].interval == 0))
+		if (time == 0 || (blocks[i].interval != 0 && time % blocks[i].interval == 0))
 			execBlock(i, NULL);
 }
 
-int getStatus(char *new, char *old) {
+int getStatus(char* new, char* old) {
 	strcpy(old, new);
 	new[0] = '\0';
 
@@ -111,7 +109,7 @@ int getStatus(char *new, char *old) {
 }
 
 void updateBlock(int i) {
-    char *output = outputs[i];
+	char* output = outputs[i];
 	char buffer[LEN(outputs[0]) - CLICKABLE_BLOCKS];
 	int bytesRead = read(pipes[i][0], buffer, LEN(buffer));
 
@@ -120,10 +118,11 @@ void updateBlock(int i) {
 	while (buffer[j] != '\n' && count < CMDLENGTH) {
 		count++;
 
-        // Skip continuation bytes, if any
+		// Skip continuation bytes, if any.
 		char ch = buffer[j];
 		int skip = 1;
-        while ((ch & 0xc0) > 0x80) ch <<= 1, skip++;
+		while ((ch & 0xc0) > 0x80)
+			ch <<= 1, skip++;
 		j += skip;
 	}
 
@@ -132,7 +131,8 @@ void updateBlock(int i) {
 	buffer[j] = ' ';
 
 	// Trim trailing spaces
-    while (j >= 0 && buffer[j] == ' ') j--;
+	while (j >= 0 && buffer[j] == ' ')
+		j--;
 	buffer[j + 1] = 0;
 
 	// Clear the pipe
@@ -156,27 +156,25 @@ void updateBlock(int i) {
 
 void debug() {
 	// Only write out if text has changed
-    if (!getStatus(statusBar[0], statusBar[1])) return;
+	if (!getStatus(statusBar[0], statusBar[1]))
+		return;
 
 	write(STDOUT_FILENO, statusBar[0], strlen(statusBar[0]));
 	write(STDOUT_FILENO, "\n", 1);
 }
 
-int setupX() {
-    dpy = XOpenDisplay(NULL);
-    if (!dpy) return 1;
-
-    screen = DefaultScreen(dpy);
-    root = RootWindow(dpy, screen);
-    return 0;
-}
-
 void setRoot() {
 	// Only set root if text has changed
-    if (!getStatus(statusBar[0], statusBar[1])) return;
+	if (!getStatus(statusBar[0], statusBar[1]))
+		return;
 
+	Display* d = XOpenDisplay(NULL);
+	if (d)
+		dpy = d;
+	screen = DefaultScreen(dpy);
+	root = RootWindow(dpy, screen);
 	XStoreName(dpy, root, statusBar[0]);
-    XFlush(dpy);
+	XCloseDisplay(dpy);
 }
 
 void signalHandler() {
@@ -201,15 +199,16 @@ void signalHandler() {
 
 	for (int j = 0; j < LEN(blocks); j++) {
 		if (blocks[j].signal == signal - SIGRTMIN) {
-            char button[4];  // value can't be more than 255;
-            sprintf(button, "%d", info.ssi_int & 0xff);
+			char button[] = {'0' + info.ssi_int & 0xff, 0};
 			execBlock(j, button);
 			break;
 		}
 	}
 }
 
-void termHandler() { statusContinue = 0; }
+void termHandler() {
+	statusContinue = 0;
+}
 
 void setupSignals() {
 	sigset_t handledSignals;
@@ -228,7 +227,8 @@ void setupSignals() {
 	epoll_ctl(epollFD, EPOLL_CTL_ADD, signalFD, &event);
 
 	// Block all realtime and handled signals
-    for (int i = SIGRTMIN; i <= SIGRTMAX; i++) sigaddset(&handledSignals, i);
+	for (int i = SIGRTMIN; i <= SIGRTMAX; i++)
+		sigaddset(&handledSignals, i);
 	sigprocmask(SIG_BLOCK, &handledSignals, NULL);
 
 	// Handle termination signals
@@ -258,7 +258,8 @@ void statusLoop() {
 				signalHandler();
 		}
 
-        if (eventCount != -1) writeStatus();
+		if (eventCount != -1)
+			writeStatus();
 	}
 }
 
@@ -282,23 +283,19 @@ void init() {
 	setupSignals();
 }
 
-int main(const int argc, const char *argv[]) {
-    if (setupX()) {
-        fprintf(stderr, "dwmblocks: Failed to open display\n");
-        return 1;
-    }
-
+int main(const int argc, const char* argv[]) {
 	writeStatus = setRoot;
 	for (int i = 0; i < argc; i++)
-        if (!strcmp("-d", argv[i])) writeStatus = debug;
+		if (!strcmp("-d", argv[i]))
+			writeStatus = debug;
 
 	init();
 	statusLoop();
 
-    XCloseDisplay(dpy);
 	close(epollFD);
 	close(signalFD);
-    for (int i = 0; i < LEN(pipes); i++) closePipe(pipes[i]);
+	for (int i = 0; i < LEN(pipes); i++)
+		closePipe(pipes[i]);
 
 	return 0;
 }