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at least one task waiting on the event flag group was readied and informed of the aborted wait. The return value indicates the number of tasks where a wait on the event flag group was aborted.
OS_ERR_OBJ_PTR_NULL
if OS_CFG_ARG_CHK_EN is set to 1 in os_cfg.h: if p_grp is a NULL pointer.
OS_ERR_OBJ_TYPE
if OS_CFG_OBJ_TYPE_CHK_EN is set to 1 in os_cfg.h: if p_grp is not pointing to an event flag group.
OS_ERR_OPT_INVALID
if OS_CFG_ARG_CHK_EN is set to 1 in os_cfg.h: if specifying an invalid option.
OS_ERR_PEND_ABORT_ISR
if OS_CFG_CALLED_FROM_ISR_CHK_EN set to 1 in os_cfg.h: This function cannot be called from an ISR.
OS_ERR_PEND_ABORT_NONE
No task was aborted since no task was waiting.
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