From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Wed, 31 Aug 2011 03:54:43 +0000 (-0700)
Subject: Generate a default name for a dive, if it doesn't have one already
X-Git-Url: http://git.tdb.fi/?a=commitdiff_plain;h=3aa02ccba93648f2decab899a5b9c42b6bcea9bf;p=ext%2Fsubsurface.git

Generate a default name for a dive, if it doesn't have one already

The name is a string containint date, time, depth and length.  So it's
useful even with nothing else going on.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/dive.h b/dive.h
index 53ecdfe..ba9f668 100644
--- a/dive.h
+++ b/dive.h
@@ -101,6 +101,7 @@ struct sample {
 };
 
 struct dive {
+	const char *name;
 	time_t when;
 	depth_t maxdepth, meandepth;
 	duration_t duration, surfacetime;
diff --git a/parse.c b/parse.c
index 1a8e3ba..f90c16c 100644
--- a/parse.c
+++ b/parse.c
@@ -391,10 +391,34 @@ static void dive_start(void)
 	memset(&tm, 0, sizeof(tm));
 }
 
+static char *generate_name(struct dive *dive)
+{
+	int len;
+	struct tm *tm;
+	char buffer[256], *p;
+
+	tm = gmtime(&dive->when);
+
+	len = snprintf(buffer, sizeof(buffer),
+		"%04d-%02d-%02d "
+		"%02d:%02d:%02d "
+		"(%d ft, %d min)\n",
+		tm->tm_year+1900, tm->tm_mon+1, tm->tm_mday,
+		tm->tm_hour, tm->tm_min, tm->tm_sec,
+		to_feet(dive->maxdepth), dive->duration.seconds / 60);
+	p = malloc(len+1);
+	if (!p)
+		exit(1);
+	memcpy(p, buffer, len+1);
+	return p;
+}
+
 static void dive_end(void)
 {
 	if (!dive)
 		return;
+	if (!dive->name)
+		dive->name = generate_name(dive);
 	record_dive(dive);
 	dive = NULL;
 }