Hi,
The following appears in my header file.
enum {
SWS = 15,
NUM_OF_QUANTILES = 4,
LINK_MARKER_COUNTS = 11,
};
typedef struct neighbor_table_entry {
am_addr_t ll_addr;
uint8_t lastseq;
uint8_t rcvcnt;
uint8_t failcnt;
uint8_t flags;
uint8_t inage;
uint8_t inquality;
uint16_t eetx;
uint8_t data_success;
uint8_t data_total;
} neighbor_table_entry_t;
Till now, everything works as expected. However, after the blue part is
appended to the structure definition to the following, which is the only
change to my program, it's not working anymore. Then I append the red part
and it goes back to normal. Can anyone help me understand what is going on?
I guess this may be related to alignment and order issue. I've encountered
several problems so far and every time I have to randomly change the order
of some fields or add some padding bytes till it's working. Is there a rule
regarding how a structure must be defined in TinyOS? Thanks.
typedef struct neighbor_table_entry {
am_addr_t ll_addr;
uint8_t lastseq;
uint8_t rcvcnt;
uint8_t failcnt;
uint8_t flags;
uint8_t inage;
uint8_t inquality;
uint16_t eetx;
uint8_t data_success;
uint8_t data_total;
uint32_t link_height[LINK_MARKER_COUNTS];
uint32_t link_pos[LINK_MARKER_COUNTS];
uint32_t link_dd_pos[LINK_MARKER_COUNTS];
uint8_t entry_idx;
uint8_t cache[SWS];
uint16_t node_metric;
uint16_t node_delay_qtls[NUM_OF_QUANTILES];
uint16_t link_delay_qtls[NUM_OF_QUANTILES];
uint8_t link_dd_pos_unit[LINK_MARKER_COUNTS]; //unit increment of desired
position
uint8_t pad[7];
} neighbor_table_entry_t;
-Xiaohui
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