moving software to separate submodules part 1

desktop/.dmenu/patch/nonblockingstdin.c

@@ -0,0 +1,68 @@
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/select.h>
+
+static void
+readstdin(void)
+{
+	static size_t max = 0;
+	static struct item **end = &items;
+
+	char buf[sizeof text], *p, *maxstr;
+	struct item *item;
+
+	#if PASSWORD_PATCH
+	if (passwd) {
+		inputw = lines = 0;
+		return;
+	}
+	#endif // PASSWORD_PATCH
+
+	/* read each line from stdin and add it to the item list */
+	while (fgets(buf, sizeof buf, stdin)) {
+		if (!(item = malloc(sizeof *item)))
+			die("cannot malloc %u bytes:", sizeof *item);
+		if ((p = strchr(buf, '\n')))
+			*p = '\0';
+		if (!(item->text = strdup(buf)))
+			die("cannot strdup %u bytes:", strlen(buf)+1);
+		if (strlen(item->text) > max) {
+			max = strlen(maxstr = item->text);
+			#if PANGO_PATCH
+			inputw = maxstr ? TEXTWM(maxstr) : 0;
+			#else
+			inputw = maxstr ? TEXTW(maxstr) : 0;
+			#endif // PANGO_PATCH
+		}
+		*end = item;
+		end = &item->next;
+		item->next = NULL;
+		item->out = 0;
+	}
+	match();
+	drawmenu();
+}
+
+static void
+run(void)
+{
+	fd_set fds;
+	int flags, xfd = XConnectionNumber(dpy);
+
+	if ((flags = fcntl(0, F_GETFL)) == -1)
+		die("cannot get stdin control flags:");
+	if (fcntl(0, F_SETFL, flags | O_NONBLOCK) == -1)
+		die("cannot set stdin control flags:");
+	for (;;) {
+		FD_ZERO(&fds);
+		FD_SET(xfd, &fds);
+		if (!feof(stdin))
+			FD_SET(0, &fds);
+		if (select(xfd + 1, &fds, NULL, NULL, NULL) == -1)
+			die("cannot multiplex input:");
+		if (FD_ISSET(xfd, &fds))
+			readevent();
+		if (FD_ISSET(0, &fds))
+			readstdin();
+	}
+}