fly316/PX4-Autopilot
7
0
Fork 0
mirror of https://gitee.com/mirrors_PX4/PX4-Autopilot.git synced 2026-10-26 03:23:35 +08:00
Code Issues Packages Projects Releases Wiki Activity

modules: dataman: Optimize memory usage

Browse Source 
Use the size of each item type instead of the biggest one.

In AeroFC that runs is constrained mode it was using 7860 bytes
and now it uses 6930 bytes almost 1KB less.
This commit is contained in:
José Roberto de Souza
2017-07-13 15:21:26 +02:00
committed by Beat Küng
parent f160743df4
commit 10f54e718e
3 changed files with 117 additions and 127 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/modules/dataman/dataman.h
+1 -14
View File
@@ -44,6 +44,7 @@
#include <uORB/topics/mission.h>
#include <uORB/topics/fence.h>
#include <uORB/topics/fence_vertex.h>
#include <uORB/topics/home_position.h>
#ifdef __cplusplus
extern "C" {
@@ -116,20 +117,6 @@ struct dataman_compat_s {
#define DM_COMPAT_KEY ((DM_COMPAT_VERSION << 32) + (sizeof(struct mission_item_s) << 24) + (sizeof(struct mission_s) << 16) + (sizeof(struct fence_vertex_s) << 8) + sizeof(struct dataman_compat_s))
/** Maximum size in bytes of a single item instance is
* defined by adding the structure type to the union below
*/
typedef union dataman_max_size_t {
struct mission_item_s mission_item;
struct mission_s mission;
struct fence_vertex_s vertex;
struct dataman_compat_s compat;
} dataman_max_size_t;
#define DM_MAX_DATA_SIZE sizeof(dataman_max_size_t)
/** Retrieve from the data manager store */
__EXPORT ssize_t
dm_read(