## mach_port_limits

Structure - Specifies a port's resource and message queue limits.

### SYNOPSIS

    struct mach_port_limits
    {
           mach_port_msgcount_t      queue_limit;
    };

    typedef struct mach_port_limits* mach_port_limits_t;

### FIELDS

queue_limit
  Number of messages allowed to be on the message queue at any given time. Attempts to queue more messages than this limit will block.

### DESCRIPTION

The mach_port_limits structure defines various limits governing the messages that can be sent through the port. (In the current implementation, the structure maintains only a queue length limit.)

### RELATED INFORMATION

Functions: mach_port_get_attributes, mach_port_set_attributes.

Structures: mach_port_qos.