IPC@CHIP Documentation - SC12 @CHIP-RTOS V1.10

system's maximum number of available messages envelopes is 64 (since @CHIP-RTOS version 1.02B, else
32).
The msgID member is an output parameter from the RTX_CREATE_MSG API call.
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API function RTX_CREATE_MSG - Create a Message Exchange
RTOS Message Exchange Manager
RTX_Wait_Event
Comments
typedef struct tag_rtx_event_wait
{
unsigned int mask; // 16-Bit mask identifying the flags of interest of the group.
unsigned int value; // 16 Bit value, which specifies the states of interest
// for each flag selected by the mask.
int match; // event match requirements, 0: only one flag must match
// with value, !=0: all by mask specified flags must match
long timeout; // Maximum time (milliseconds) for waiting for an event match
} RTX_Wait_Event;
This structure is defined in the header file rtxapi.h.
Prior to making the RTX_WAIT_EVENTS call, the caller must set the members of the RTX_Wait_Event data
structure.
mask
value
match
Event bits set to '1' in this mask indicate the events in valuewhich will be matched. All other event bits in the
group are ignored.
The desired event state for the event bits set to '1' in maskare stated here. User may wait on an event bit
transition to either '1' or '0', as specified here.
This is a Boolean value which indicates whether you require all indicated events to match (AND, match!= 0), or
whether it is sufficient that only a single event of those specified match (OR, match=0).
timeout
Maximum time to wait for events, specified in milliseconds. Zero here indicates wait forever. This signed value
must be non-negative.
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API function RTX_WAIT_EVENTS - Wait for events in a group
RTOS Event Manager
RTX_Wait_Msg
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