From ab257ebcced2af6ddb528a9d48355dc2cac7d10a Mon Sep 17 00:00:00 2001 From: Jean Cyr Date: Mon, 28 Apr 2014 00:52:19 -0400 Subject: Proper data manager restart handling Introduce SYS_RESTART_TYPE parameter having one of 3 values: boot restart, inflight restart, or unknown restart, and defaulting to unknown restart. px4io.cpp sets this parameter according to the type of restart detected. dataman.c retrieves this parameter and clears data entries according to their persistence level. Does nothing if unknown restart. --- src/modules/dataman/dataman.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'src/modules/dataman/dataman.h') diff --git a/src/modules/dataman/dataman.h b/src/modules/dataman/dataman.h index 33c9fcd15..4382baeb5 100644 --- a/src/modules/dataman/dataman.h +++ b/src/modules/dataman/dataman.h @@ -75,7 +75,8 @@ extern "C" { /* The reason for the last reset */ typedef enum { DM_INIT_REASON_POWER_ON = 0, /* Data survives resets */ - DM_INIT_REASON_IN_FLIGHT /* Data survives in-flight resets only */ + DM_INIT_REASON_IN_FLIGHT, /* Data survives in-flight resets only */ + DM_INIT_REASON_VOLATILE /* Data does not survive reset */ } dm_reset_reason; /* Maximum size in bytes of a single item instance */ @@ -100,7 +101,7 @@ extern "C" { size_t buflen /* Length in bytes of data to retrieve */ ); - /* Retrieve from the data manager store */ + /* Erase all items of this type */ __EXPORT int dm_clear( dm_item_t item /* The item type to clear */ -- cgit v1.2.3