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Shezhu Resource Sharing System 1.19 (Default branch)
01-11-2008
The Shezhu Resource Sharing System is an application for scheduling and booking shared resources such as rooms and equipment. The client only needs a modern Web browser. It has a user friendly point and click interface, visual filters for making block/repeat bookings, concurrent users and double booking prevention, allows local site customization, and supports configurable academic term/semester blocks. License: GNU General Public License v3 Changes:|
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Resource(3I) Resource(3I) NAME
Resource - shared object SYNOPSIS
#include <InterViews/resource.h> DESCRIPTION
Resource is a class that provides a simple form of reference counting for shared objects. Every resource has a reference count that is initially set to zero and must be explicitly incremented through a call to Reference. A resource should not be deleted like other objects; instead, the static member function unref should be used to unreference the object. When a resource is unreferenced, the reference count is decremented unless it is already zero. If the count is zero, the object is destroyed. PUBLIC OPERATIONS
Resource() Create a new resource object with its reference count set to zero. void ref() Increment the resource's reference count. void unref() Decrement the resource's reference count, if it is positive, and delete this if the count is zero. static void ref(Resource*) If the resource is not nil, call ref on it. Otherwise do nothing. static void unref(Resource*) If the resource is not nil, call unref on it. Otherwise do nothing. void Reference() This function is equivalent to ref and is provided solely for backward compatibility. It will be removed in a future version. void Unreference() This function is equivalent to unref and is provided solely for backward compatibility. It will be removed in a future version. FRIEND OPERATIONS
void Unref(Resource*) This function is equivalent to static unref and is provided solely for backward compatibility. It will be removed in a future ver- sion. BUGS
This scheme relies on manual referencing, which is more efficient, but also more dangerous. When garbage collection is supported by the runtime system, resources will be unnecessary. InterViews Reference Manual Resource(3I)