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-rw-r--r--dive.c1
-rw-r--r--dive.h19
-rw-r--r--qthelper.cpp24
3 files changed, 43 insertions, 1 deletions
diff --git a/dive.c b/dive.c
index 540f40eb5..a902bca68 100644
--- a/dive.c
+++ b/dive.c
@@ -892,6 +892,7 @@ struct dive *fixup_dive(struct dive *dive)
weightsystem_t *ws = dive->weightsystem + i;
add_weightsystem_description(ws);
}
+ dive->id = getUniqID(dive);
return dive;
}
diff --git a/dive.h b/dive.h
index a0c22935f..649a7e5e6 100644
--- a/dive.h
+++ b/dive.h
@@ -412,9 +412,10 @@ struct dive {
pressure_t surface_pressure;
duration_t duration;
int salinity; // kg per 10000 l
- struct tag_entry *tag_list;
+ struct tag_entry *tag_list;
struct divecomputer dc;
+ int id; // unique ID for this dive
};
static inline int dive_has_gps_location(struct dive *dive)
@@ -611,6 +612,21 @@ static inline struct dive *get_dive_by_diveid(uint32_t diveid, uint32_t deviceid
}
return NULL;
}
+// this is very different from get_dive_by_diveid() (which is only used
+// by the UEMIS downloader) -- this uses the unique diveID to allow us
+// to hold an identifier for a dive across operations that might change
+// the dive_table
+static inline struct dive *getDiveById(int id)
+{
+ int i;
+ struct dive *dive = NULL;
+
+ for_each_dive(i, dive) {
+ if (dive->id == id)
+ break;
+ }
+ return dive;
+}
extern struct dive *find_dive_including(timestamp_t when);
extern bool dive_within_time_range(struct dive *dive, timestamp_t when, timestamp_t offset);
struct dive *find_dive_n_near(timestamp_t when, int n, timestamp_t offset);
@@ -654,6 +670,7 @@ extern void finish_sample(struct divecomputer *dc);
extern void sort_table(struct dive_table *table);
extern struct dive *fixup_dive(struct dive *dive);
+extern int getUniqID(struct dive *d);
extern unsigned int dc_airtemp(struct divecomputer *dc);
extern unsigned int dc_watertemp(struct divecomputer *dc);
extern struct dive *merge_dives(struct dive *a, struct dive *b, int offset, bool prefer_downloaded);
diff --git a/qthelper.cpp b/qthelper.cpp
index 7eb1e48f4..9d503cb6a 100644
--- a/qthelper.cpp
+++ b/qthelper.cpp
@@ -217,3 +217,27 @@ QList< int > getDivesInTrip ( dive_trip_t* trip )
}
return ret;
}
+
+// we need this to be uniq, but also make sure
+// it doesn't change during the life time of a Subsurface session
+// oh, and it has no meaning whatsoever - that's why we have the
+// silly initial number and increment by 3 :-)
+int getUniqID(struct dive *d)
+{
+ static QSet<int> ids;
+ static int maxId = 83529;
+
+ int id = d->id;
+ if (id) {
+ if (!ids.contains(id)) {
+ qDebug() << "WTF - only I am allowed to create IDs";
+ ids.insert(id);
+ }
+ return id;
+ }
+ maxId += 3;
+ id = maxId;
+ Q_ASSERT(!ids.contains(id));
+ ids.insert(id);
+ return id;
+}