The Bulletin Board File Sample Clauses

The Bulletin Board File. ‌ The bulletin board file specified in the configuration file or on the command line must be created if nonex- istent and must be re-used as is otherwise (rather than being overwritten). Message numbers are assigned by the server in sequence, according to the order in which the WRITE requests have been received. No two messages can have the same number in any bulletin board file. In particular, if the server is started on an existing file it should inspect the file on startup and make sure that any new message written to the file has an associated number that does not conflict with existing message numbers. The access control to the bulletin board file follows the readers/writers paradigm, a common scheme in operating systems. Simultaneous reads of the bulletin board file by different threads of execution must be allowed. However, no other operation (read or write) is allowed when a thread writes to the bulletin board file. Of course, if a write request is issued while several read operations are in progress, the write will have to wait until the current reads complete. Note that this mechanism is slightly more complicated than the normal file locking. You may want to use a structure (that records the number of current read and write operations) protected by a critical region and also a condition variable to enforce this restriction. Inefficient implementations of this access control mechanism will be penalized. Do not use file locking for implementing the access control since this method will not work as expected. Testing the fine access Obviously, testing the correct implementation of access control is primarily your responsibility. No matter how you choose to perform your tests however, the following method of testing must be available in your submission: Whenever the parameter D is true: (a) suitable messages marking the beginning and the end of a read or write operation should be provided to the standard output, and (b) each read and write operation should be artificially lengthened by different amounts of time (recommended values: 3 seconds for read operations and 6 seconds for write operations) using suitable sleep() statements inside the respective critical regions. I will let you figure out by yourself how is this helpful in debugging access control.
Sample 1
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Related to The Bulletin Board File

  • ARTICLE BULLETIN BOARDS The Employer agrees to supply and make available to the Union for the posting of seniority lists and Union notices one (1) bulletin board in such place so as to inform all employees in the bargaining unit of the activities of the Union.

  • Bulletin Board The Employer shall provide a bulletin board which shall be placed so that all employees will have access to it and upon which the Union shall have the right to post notices of regular meetings, special meetings, seminars or Union activities.

  • Use of Bulletin Boards Space shall be made available to OCEA on agency/departmental bulletin boards within the Representation Unit provided such use does not interfere with the needs of the agency/department and material posted is not derogatory to the County, County employees or other employee organizations. Notice shall be dated and signed by the authorized representatives of OCEA responsible for its issuance.

  • Bulletin Boards The Employer shall provide bulletin board facilities for the exclusive use of the Union, the sites to be determined by mutual agreement. The use of such bulletin board facilities shall be restricted to the business affairs of the Union.

  • Bulletin Board Space The City shall provide reasonable space on bulletin boards for official Union notices of a non-controversial nature at each central work area.

  • Union Bulletin Board ‌ The Employer will provide bulletin board facilities for the exclusive use of the Union, the site to be determined by mutual agreement. The use of such bulletin board facilities shall be restricted to the business affairs of the Union.

  • Union Bulletin Boards The Employer will provide bulletin boards in each building which may be used by the Union for posting notices of the following types:

  • Bulletin Boards and Newsstands The Employer will maintain bulletin board(s) or space on existing bulletin boards currently provided to the Union for union communication. In bargaining units where no bulletin board or space on existing bulletin boards has been provided, the Employer will supply the Union with a board or space. Material posted on the bulletin board will be appropriate to the workplace, politically non-partisan, in compliance with state ethics laws and identified as union literature. If requested, the Employer will identify area(s) where Union provided newsstand(s) can be located. Union provided newsstand(s) must meet the Employer’s campus standards. Union communications will not be posted or otherwise disseminated in any other location on the campus, except as provided in the Employer policy and in Section 40.7 below.

  • Quotation The Company will use its best efforts to include, subject to notice of issuance, the Common Shares on the Nasdaq National Market.

  • Stock Exchange Listing The shares of Common Stock have been approved for listing on the NASDAQ Capital Market (the “Exchange”), and the Company has taken no action designed to, or likely to have the effect of, delisting the shares of Common Stock from the Exchange, nor has the Company received any notification that the Exchange is contemplating terminating such listing except as described in the Registration Statement, the Pricing Disclosure Package and the Prospectus.

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