NAME

SYNOPSIS

void
vm_map_lock(vm_map_t map);

void
vm_map_unlock(vm_map_t map);

void
vm_map_lock_read(vm_map_t map);

void
vm_map_unlock_read(vm_map_t map);

int
vm_map_trylock(vm_map_t map);

int
vm_map_trylock_read(vm_map_t map);

int
vm_map_lock_upgrade(vm_map_t map);

int
vm_map_lock_downgrade(vm_map_t map);

DESCRIPTION

The vm_map_unlock() macro releases an exclusive lock on map.

The vm_map_lock_read() macro obtains a read-lock on map.

The vm_map_unlock_read() macro releases a read-lock on map.

The vm_map_trylock() macro attempts to obtain an exclusive lock on map. It returns FALSE if the lock cannot be immediately acquired; otherwise return TRUE with the lock acquired.

The vm_map_trylock_read() macro attempts to obtain a read-lock on map. It returns FALSE if the lock cannot be immediately acquired; otherwise return TRUE with the lock acquired.

The vm_map_lock_upgrade() macro attempts to atomically upgrade a read-lock on map to an exclusive lock.

The vm_map_lock_downgrade() macro attempts to downgrade an exclusive lock on map to a read-lock.

IMPLEMENTATION NOTES

SEE ALSO

AUTHORS