JPS6491265A - Interlocking control system - Google Patents
Interlocking control systemInfo
- Publication number
- JPS6491265A JPS6491265A JP24779687A JP24779687A JPS6491265A JP S6491265 A JPS6491265 A JP S6491265A JP 24779687 A JP24779687 A JP 24779687A JP 24779687 A JP24779687 A JP 24779687A JP S6491265 A JPS6491265 A JP S6491265A
- Authority
- JP
- Japan
- Prior art keywords
- lock
- request
- controller
- interlocking
- interlocking controller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Multi Processors (AREA)
Abstract
PURPOSE:To evade a deadlock by providing an interlocking controller releasing a lock which a designated access source device has set in correspondence with a request from a supervisory device. CONSTITUTION:Plural processors 1-3 share a storage device through the interlocking controller 4. Respective controllers respectively and independently operate and they can respectively request the lock and the lock release of an area in the storage device to the interlocking controller 4. The supervisory device 6 always supervises the action of the processors 1-3. When it detects that one controller is in a state that it cannot release the lock, said device 6 starts a lock release request circuit 61 and transmits identification information of the processor and a lock release request to the interlocking controller 4. It receives them and releases the lock which is set by the request of the designated controller.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62247796A JPH0786860B2 (en) | 1987-10-02 | 1987-10-02 | Interlock control system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62247796A JPH0786860B2 (en) | 1987-10-02 | 1987-10-02 | Interlock control system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6491265A true JPS6491265A (en) | 1989-04-10 |
JPH0786860B2 JPH0786860B2 (en) | 1995-09-20 |
Family
ID=17168781
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62247796A Expired - Lifetime JPH0786860B2 (en) | 1987-10-02 | 1987-10-02 | Interlock control system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0786860B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10141570A (en) * | 1996-11-05 | 1998-05-29 | Rex Ind Co Ltd | Controller for electrofusion joint |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61250765A (en) * | 1985-04-30 | 1986-11-07 | Toshiba Corp | Exclusive control system for multiprocessor system |
-
1987
- 1987-10-02 JP JP62247796A patent/JPH0786860B2/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61250765A (en) * | 1985-04-30 | 1986-11-07 | Toshiba Corp | Exclusive control system for multiprocessor system |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10141570A (en) * | 1996-11-05 | 1998-05-29 | Rex Ind Co Ltd | Controller for electrofusion joint |
Also Published As
Publication number | Publication date |
---|---|
JPH0786860B2 (en) | 1995-09-20 |
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