1 files changed, 53 insertions, 0 deletions
diff --git a/src/logtest.c b/src/logtest.c
new file mode 100644
index 0000000..4a22cb4
--- /dev/null
+++ b/src/logtest.c
@@ -0,0 +1,53 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/* 0x100 * 32 = 8K (but we likely won't get that much) */
+#define LOG_PAGE_SIZE 0x20
+#define LOG_MAX_PAGES 16
+#define LOG_SCROLL_PAGES 2
+
+static char *log_buffer = NULL;
+static char *log_buf_end = NULL;
+static char *log_buf_current = NULL;
+static int log_pages = LOG_MAX_PAGES;
+
+// static char last_log_nick[NICKLEN + 1];
+
+static void alloc_log_buffer() {
+	log_buffer = malloc(LOG_PAGE_SIZE * log_pages);
+	log_buf_end = (char *)(log_buffer + log_pages * LOG_PAGE_SIZE - 1);
+	log_buf_end[1] = 0xaa;
+	log_buf_current = log_buffer;
+}
+
+static void log_msg(char *msg) {
+	int len = strlen(msg);
+	if( (log_buf_current + len + 1) > log_buf_end ) {
+		memmove(log_buffer, log_buffer + (LOG_SCROLL_PAGES * LOG_PAGE_SIZE), (log_pages - LOG_SCROLL_PAGES) * LOG_PAGE_SIZE);
+		log_buf_current -= (LOG_SCROLL_PAGES * LOG_PAGE_SIZE);
+	}
+
+	memcpy(log_buf_current, msg, len);
+	log_buf_current += (len + 1);
+	*log_buf_current = '\0';
+}
+
+static void dump_log_stats(void) {
+	printf("start: %x, end: %x, cur: %x\n", log_buffer, log_buf_end, log_buf_current);
+}
+
+void main(void) {
+	char buf[100];
+	int i;
+
+	alloc_log_buffer();
+	dump_log_stats();
+
+	for(i=0; i<24; i++) {
+		sprintf(buf, ":--------------------Iteration #%d\n", i);
+		log_msg(buf);
+		dump_log_stats();
+	}
+HANG: goto HANG;
+}