#include <rtl.h>

void os_mbx_init (
    OS_ID mailbox,       /* The mailbox to initialize */
    U16   mbx_size );    /* Number of bytes in the mailbox */

The os_mbx_init function initializes the mailbox object identified by the function argument.

The argument mbx_size specifies the size of the mailbox, in bytes. However, the number of message entries in the mailbox is defined by the os_mbx_declare macro.

The os_mbx_init function is in the RL-RTX library. The prototype is defined in rtl.h.

Note

• You must declare and initialize the mailbox before you perform any operation on it.

None.

os_mbx_check, os_mbx_declare, os_mbx_send, os_mbx_wait

#include <rtl.h>

/* Declare a mailbox for 20 messages. */
os_mbx_declare (mailbox1, 20);

__task void task1 (void) {
   ..
  os_mbx_init (&mailbox1, sizeof(mailbox1));
   ..
}