In fact, i use the following structure to exchange message between node on
network.
typedef struct riseg_msg{
nx_uint8_t type; /*the type of the riseg message*/
uint8_t *data;
nx_uint32_t mac; /* the mac field, present in all riseg message */
} riseg_msg_t;
/*Default size=19 bytes*/
typedef struct join_key_msg{
nx_uint16_t next; /* the address of the next hop in the ring */
nx_uint8_t gid; /* the group identity */
uint8_t key[KEY_SIZE]; /*the group key. Default size=16 bytes*/
} join_key_msg_t;
riseg_msg_t *risegMsgSent;
However, when I print the size of message I get 12 instead of 9 (1+4+4).
====output using printf=========================
sizeof(riseg_msg_t):12, sizeof(join_key_msg_t):19
sizeof(riseg_msg_t->type):1, sizeof(riseg_msg_t->data):4,
sizeof(riseg_msg_t->mac):4
sizeof(risegMsgSent):4, sizeof(*risegMsgSent):12,
I do not understand.
Can anybody explain to me why 12? What is the size of pointer in TinyOS?
Thanks in advance,
De : Prabhakar Misra [mailto:misra.pra...@gmail.com]
Envoyé : jeudi 8 juillet 2010 21:22
À : Omar Cheikhrouhou (yahoo)
Objet : Re: [Tinyos-help] problem sending message
Hi,
Your problem is a bit vague, may be you could be a bit more exact.
Is the sending being done over a radio or something??
On Thu, Jul 8, 2010 at 1:31 PM, Omar Cheikhrouhou (yahoo)
<enis01a...@yahoo.fr> wrote:
When i send two succesive message in telosb mote I got that the second
packet has as value the first one when I print its value in senddone and
receive.
Do you have any explication for this problem
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--
Regards,
Prabhakar Misra,
Senior Undergraduate,
Department of Computer Science and Enginnering.
Indian Institute of Technology Kanpur,
India.
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