save.c

/*
 * Copyright(C) 2010-2011, Jocelyn Falempe jock@inpactien.com
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdlib.h>
#include "save.h"
#include "event.h"

static int savefd = -1;

void saExit(void) {
	close(savefd);
}

#ifdef _WIN32
#define O_NONBLOCK 0
#endif // _WIN32

void saInit(char *file) {
	savefd = open(file, O_WRONLY | O_CREAT | O_NONBLOCK | O_TRUNC, 0660);
	if (savefd < 0) {
		printf("cannot open %s", file);
		return;
	}
	atexit(saExit);
}

void saSaveEvent(ev_t *ev) {
	int n;
	if (savefd < 0)
		return;
	n = write(savefd, ev, sizeof(*ev));
	n = write(savefd, ev->data, ev->size);

	if (n < 0)
		printf("error writing replay\n");
}

void saReplay(char *file) {
	int fd;
	ev_t ev;
	char buf[256];
	int n;

	fd = open(file, O_RDONLY);

	do {
		n = read(fd, &ev, sizeof(ev));
		n = read(fd, buf, ev.size);
		evPostEventLocal(ev.time, buf, ev.size, ev.type);
	} while (n > 0);
}