Add sleep logic in playback.

This also removes the "." between the seconds and nanos so that we don't mistake it
for a float, which it isn't.

capture.c

@@ -62,7 +62,7 @@ int dump_event(struct timespec* start, int fd, char* type) {
 		return 1;
 	}
 
-	printf("%ld.%ld,%s,%s\n",
+	printf("%ld %ld,%s,%s\n",
 		diff.tv_sec,
 		diff.tv_nsec,
 		type,

playback.c

@@ -4,6 +4,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <time.h>
 #include <unistd.h>
 
 #include <linux/uinput.h>
@@ -22,6 +23,45 @@ void emit(int fd, int type, int code, int val) {
 	write(fd, &ie, sizeof(ie));
 }
 
+int handle_line(char* line) {
+	static time_t timer_seconds = 0;
+	static long timer_nanos = 0;
+
+	time_t seconds;
+	long nanos;
+	char type;
+	char details[32];
+	struct timespec to_sleep;
+	struct timespec remaining;
+
+	int matched = sscanf(line, "%ld %ld,%c,%s\n", &seconds, &nanos, &type, details);
+	if(matched == 0) {
+		printf("Line '%s' appears incorrect. Exiting", line);
+		return 1;
+	} else if(matched < 4) {
+		printf("Only matched %d", matched);
+		return 1;
+	}
+	
+	to_sleep.tv_sec = seconds - timer_seconds;
+	to_sleep.tv_nsec = nanos - timer_nanos;
+	if(to_sleep.tv_nsec < 0) {
+		--to_sleep.tv_nsec;
+		to_sleep.tv_nsec += 1000000000L;
+	}
+	printf("%s", line);
+	// printf("Timer %ld %ld\n", timer_seconds, timer_nanos);
+	// printf("Read %ld %ld\n", seconds, nanos);
+	// printf("Sleep %ld %ld\n", to_sleep.tv_sec, to_sleep.tv_nsec);
+	int result = nanosleep(&to_sleep, &remaining);
+	while(nanosleep(&to_sleep, &remaining) == -1) {
+		to_sleep.tv_sec = remaining.tv_sec;
+		to_sleep.tv_nsec = remaining.tv_nsec;
+	}
+	timer_seconds = seconds;
+	timer_nanos = nanos;
+	return 0;
+}
 
 int main(int argc, char* argv[]) {
 	if(argc < 2) {
@@ -48,7 +88,9 @@ int read_file(char* filename) {
 	}
 
 	while((read = getline(&line, &len, fp)) != -1) {
-		printf("%s", line);
+		if(handle_line(line)) {
+			return 1;
+		}
 	}
 }