Command execution controlling apparatus, command execution instructing apparatus and command execution controlling method

A method for controlling command execution, the method comprising:

• receiving execution commands from an external command transmitting entity;
• storing the received execution commands wherein a predetermined upper-limit number of execution commands to be stored is set;
• retrieving the stored execution commands and issuing them to a command execution entity according to an issuance order determined among the execution commands;
• receiving an adjustment command, transmitted from the command transmitting entity, to adjust the issuance order of the execution commands;
• and
• storing the received adjustment command in a storage area which is provided separately from a storage area for storing the execution commands,
• wherein said execution command issuing unit sets an identifier to differentiate between execution commands received prior to the reception of the adjustment command and execution commands received after the reception of the adjustment command, and when the adjustment command is stored, an execution command received after the reception of the adjustment command is issued as an issuance order adjustment processing, on the condition that the issuance of execution commands received prior to the reception of the adjustment command is determined to be completed by referring to the identifier.

A command execution controlling program stored on a computer readable storage medium and executable by a computer, the program including the functions of:

• receiving execution commands from an external command transmitting entity;
• storing the received execution commands wherein a predetermined upper-limit number of execution commands to be stored is set;
• retrieving the stored execution commands and issuing them to a command execution entity according to an issuance order determined among the execution commands;
• receiving an adjustment command, transmitted from the command transmitting entity, to adjust the issuance order of the execution commands;
• storing the received adjustment command in a storage area which is provided separately from a storage area for storing the execution commands, wherein said execution command issuing unit sets an identifier to differentiate between execution commands received prior to the reception of the adjustment command and execution commands received after the reception of the adjustment command;
• and
• issuing an execution command received after the reception of the adjustment command, as an issuance order adjustment processing, on the condition that the issuance of execution commands received prior to the reception of the adjustment command is determined to be completed by referring to the identifier, when the adjustment command is stored.

A recording medium, readable by a computer, which stores a command execution controlling program executable by a computer, the program including the functions of:

• receiving execution commands from an external command transmitting entity;
• storing the received execution commands wherein a predetermined upper-limit number of execution commands to be stored is set;
• retrieving the execution commands stored and issuing them to a command execution entity according to an issuance order determined among the execution commands;
• receiving an adjustment command, transmitted from the command transmitting entity, to adjust the issuance order of the execution commands;
• storing the received adjustment command in a storage area which is provided separately from a storage area for storing the execution commands, wherein said execution command issuing unit sets an identifier to differentiate between execution commands received prior to the reception of the adjustment command and execution commands received after the reception of the adjustment command;
• and
• issuing an execution command received after the reception of the adjustment command, as an issuance order adjustment processing, on the condition that the issuance of execution commands received prior to the reception of the adjustment command is determined to be completed by referring to the identifier, when the adjustment command is stored.