NAME | SYNOPSIS | API RESTRICTIONS | FEATURES | DESCRPTION | RETURN VALUE | ERRORS | ATTRIBUTES | SEE ALSO
#include <mipc/chMipc.h>int msgQueueStat(int spaceLid, unsigned int msgQueueId);
The function or functions documented here may not be used safely in all application contexts with all APIs provided in the ChorusOS 5.0 product.
See API(5FEA) for details.
MIPC
The msgQueueStat() function gets the statistics from the message queue of the index msgQueueId in the message space spaceLid.
The queueStat pointer points to the KnMsgQueueStat structure that contains the number of messages currently waiting in the queue:
struct { unsigned int msgNumber; } KnmsgQueueStat |
Upon successful completion, msgQueueStat() returns 0. Otherwise, a negative error code is returned.
See attributes(5) for descriptions of the following attributes:
ATTRIBUTE TYPE | ATTRIBUTE VALUE |
---|---|
Interface Stability | Evolving |
msgSpaceCreate(2K), msgSpaceOpen(2K), msgAllocate(2K), msgFree(2K), msgGet(2K), msgPut(2K)msgRemove(2K)
NAME | SYNOPSIS | API RESTRICTIONS | FEATURES | DESCRPTION | RETURN VALUE | ERRORS | ATTRIBUTES | SEE ALSO