JPH0346049A - Host computer device - Google Patents

Host computer device

Info

Publication number
JPH0346049A
JPH0346049A JP1182046A JP18204689A JPH0346049A JP H0346049 A JPH0346049 A JP H0346049A JP 1182046 A JP1182046 A JP 1182046A JP 18204689 A JP18204689 A JP 18204689A JP H0346049 A JPH0346049 A JP H0346049A
Authority
JP
Japan
Prior art keywords
line
buffers
line buffer
line buffers
communication
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.)
Pending
Application number
JP1182046A
Other languages
Japanese (ja)
Inventor
Takayuki Ban
孝之 伴
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Priority to JP1182046A priority Critical patent/JPH0346049A/en
Publication of JPH0346049A publication Critical patent/JPH0346049A/en
Pending legal-status Critical Current

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  • Computer And Data Communications (AREA)

Abstract

PURPOSE:To avoid the inability of data transmission/reception by allocating line buffers used in respective communication lines within the range of a maximum number for allocating the line buffers, which is previously given at the time of initializing a system. CONSTITUTION:The line buffers 81 are acquired from a line buffer pool 8 which is temporarily used as a transmission data information storage area so as to attain allocation at the time of transmitting and receiving data with terminal equipments 1 and 2 or the other host computer within the range of the maximum number for allocating the line buffers, which is previously given to respective communication lines 4 and 5 when the system is initialized for a line buffer acquirement request from a communication control means 6. Consequently, all the line buffers 81 come to be used by transmitting and receiving data between the terminal equipments 1 and 2 and an online program means 7. Thus, the biased use of the line buffers 81 in a specific communication line can be avoided, and the use of the line buffers 81 in the other communication line can be ensured, whereby the inability of data transmission/reception owing to the lack of the buffers can be avoided.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明はホストコンピュータのデータ送受信、に利用す
る。本発明はホストコンピュータのデータ送受信時デー
タ伝送情報格納領域として一時的に使用する回線バッフ
ァの割当に関する。
DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention is used for data transmission and reception of a host computer. The present invention relates to the allocation of a line buffer temporarily used as a data transmission information storage area during data transmission and reception by a host computer.

〔概要〕〔overview〕

本発明は複数の端末または他ホストコンピュータに接続
され、あらかじめ決められた伝送制御手順に従ってデー
タの送受信を行うホストコンピュータ装置において、 各々の通信回線で使用する回線バッファを割当てテーブ
ルで管理し、システム初期化時にあらかじめ与えられた
回線バッファ割当最大数の範囲内で割り当てることによ
り、 特定回線での回線バッファの偏った使用を避け、他の通
信回線での回線バッファの使用を保障してデータ送受信
の不能を回避できるようにしたものである。
The present invention manages line buffers used in each communication line using an allocation table in a host computer device that is connected to a plurality of terminals or other host computers and sends and receives data according to a predetermined transmission control procedure. By allocating within the maximum number of line buffers given in advance at the time of communication, it is possible to avoid unbalanced use of line buffers on a particular line, guarantee the use of line buffers on other communication lines, and prevent data transmission/reception. It is possible to avoid this.

〔従来の技術〕[Conventional technology]

従来、この種の回線バッファ制御は、回線バッファ取得
手段が通信制御手段からの回線バッファ取得要求に対し
、回線バッファプールに存在する回線バッファ数の範囲
内で回線バッファを割り当てていた。
Conventionally, in this type of line buffer control, the line buffer acquisition means allocates line buffers within the range of the number of line buffers existing in the line buffer pool in response to a line buffer acquisition request from the communication control means.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

上述した回線バッファの制御は、回線バッファ取得手段
が通信制御手段からの回線バッファ取得要求に対し回線
バッファプールに存在する回線バッファ数の範囲内で回
線バッファを割り当てるため、特定の通信回線での回線
バッファの使用が偏り他の通信回線での回線バッファの
使用ができずデータの送受信が不能になる欠点がある。
The line buffer control described above is performed because the line buffer acquisition means allocates line buffers within the number of line buffers existing in the line buffer pool in response to a line buffer acquisition request from the communication control means. This has the disadvantage that the buffer is used unbalanced and the line buffer cannot be used on other communication lines, making it impossible to send and receive data.

本発明はこのような欠点を除去するもので、特定通信回
線での偏った使用を避け、他の通信回線での回線バッフ
ァの使用を保障しデータ送受信の不能を回避することが
できる装置を提供することを目的とする。
The present invention eliminates such drawbacks, and provides a device that can avoid unbalanced use of a specific communication line, ensure the use of line buffers on other communication lines, and avoid the inability to send and receive data. The purpose is to

〔問題点を解決するための手段〕[Means for solving problems]

本発明は、通信回線により複数の端末装置または他ホス
トコンピュータに接続され、オンラインプログラム手段
と、前記端末装置または他ホストコンピュータとの間で
あらかじめ定められた伝送制御手順に従ってデータの送
受信を行う通信制御手段と、前記端末装置または他ホス
トコンピュータとのデータの送受信時に前記通信手段に
より伝送データ情報格納領域として一時的に用いる複数
の回線バッファとを備えたホストコンピュータ装置にお
いて、この回線バッファの中で未使用状態のものを管理
する回線バッファプールと、回線バッファの割当て最大
数が記録された回線バッファ割当てテーブルと、前記通
信制御手段からの回線バッファ取得要求に対しシステム
初期化時に各々の通信回線にあらかじめ与えられる回線
バッファ割当て最大数の範囲内で前記回線バッファプー
ルから取得した回線バッファを割当てる回線バッファ管
理手段とを備えたことを特徴とする。
The present invention provides a communication control system that is connected to a plurality of terminal devices or other host computers via a communication line, and transmits and receives data between an online program means and the terminal devices or other host computers according to a predetermined transmission control procedure. and a plurality of line buffers temporarily used as transmission data information storage areas by the communication means when transmitting/receiving data with the terminal device or other host computer, A line buffer pool that manages the usage state, a line buffer allocation table that records the maximum number of allocated line buffers, and a line buffer allocation table that records the maximum number of allocated line buffers; The present invention is characterized by comprising a line buffer management means for allocating line buffers obtained from the line buffer pool within a given maximum number of line buffer allocations.

〔作用〕[Effect]

通信制御手段からの回線バッファ取得要求に対しシステ
ム初期化時に各々の通信回線にあらかじめ与えられる回
線バッファ割当て最大数の範囲内で、端末装置または他
ホストコンピュータとのデータの送受信時に伝送データ
情報格納領域として一時的に用いられる回線バッファプ
ールから回線バッファを取得して割当てる。
In response to a line buffer acquisition request from the communication control means, the transmission data information storage area is used when transmitting and receiving data with a terminal device or other host computer, within the maximum number of line buffers allocated in advance to each communication line at the time of system initialization. Obtain and allocate a line buffer from the line buffer pool that is used temporarily.

これにより、端末装置とオンラインプログラム手段との
データ送受信により回線バッファが全て使用されること
になり、特定通信回線での回線バッファの偏った使用を
避けることができ、他の通信回線での回線バッファの使
用を保障し、バッファ不足によるデータ送受信の不能を
回避することができる。
As a result, all the line buffers are used for data transmission and reception between the terminal device and the online program means, and it is possible to avoid uneven use of the line buffers on a specific communication line, and the line buffers on other communication lines are can be used, and the inability to send and receive data due to buffer shortage can be avoided.

〔実施例〕〔Example〕

次に、本発明実施例を図面に基づいて説明する。 Next, embodiments of the present invention will be described based on the drawings.

第1図は本発明実施例の構成を示すブロック図、第2図
は本発明実施例の動作を示すフローチャートである。
FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention, and FIG. 2 is a flowchart showing the operation of the embodiment of the present invention.

本発明実施例は第1図に示すように、端末装置1および
2が通信回線4および5を介してホストコンピュータ3
に接続され、ホストコンピュータ3には通信回線4およ
び5を介して端末装置1および2とあらかじめ定められ
た伝送制御手順に従ってデータの送受信を行う通信制御
手段6と、オンラインプログラム手段7と、データ送受
信の際通信制御手段6が一時的に伝送データ情報格納領
域として用いる複数の回線バッファ81と、未使用状態
の回線バッファ81が管理される回線バッファプール8
と、回線バッファプール8から回線バッファ81を取得
または返却する回線バッファ管理手段9と、通信回線4
および5の各々に割り当てる回線バッファ81の割当て
最大数が格納される回線バッファ割当てテーブル10と
を備える。
In the embodiment of the present invention, as shown in FIG. 1, terminal devices 1 and 2 connect to a host computer 3 via communication lines 4 and 5.
, and the host computer 3 includes a communication control means 6 for transmitting and receiving data to and from the terminal devices 1 and 2 via communication lines 4 and 5 according to a predetermined transmission control procedure, an online program means 7, and a data transmitting/receiving means. A plurality of line buffers 81 that the communication control means 6 temporarily uses as a transmission data information storage area, and a line buffer pool 8 in which unused line buffers 81 are managed.
, a line buffer management means 9 that acquires or returns a line buffer 81 from the line buffer pool 8, and a communication line 4.
and a line buffer allocation table 10 storing the maximum number of line buffers 81 to be allocated to each of the line buffers 81 and 5.

次に、本発明実施例の動作を第2図に基づき説明する。Next, the operation of the embodiment of the present invention will be explained based on FIG.

オンラインプログラム手段7が端末装置1とデータの送
受信をする場合、通信制御手段6は回線バッファ管理手
段9に回線バッファ81の取得要求を行う(ステップ2
0)。回線バッファ81の取得要求を受けて回線バッフ
ァ管理手段9は通信回線4に割り当てている回線バッフ
ァ数と回線バッファ割当てテーブル10に格納されてい
る通信回線4の割当て最大数とを比較する(ステップ2
1)。
When the online program means 7 sends and receives data to and from the terminal device 1, the communication control means 6 requests the line buffer management means 9 to acquire the line buffer 81 (step 2).
0). Upon receiving the request to acquire the line buffer 81, the line buffer management means 9 compares the number of line buffers allocated to the communication line 4 with the maximum number of line buffers allocated to the communication line 4 stored in the line buffer allocation table 10 (step 2).
1).

この比較により割当て最大数の範囲内であれば通信制御
手段6に回線バッファ81を回線バッファブール8から
取得して割り当てる(ステップ22〉。
As a result of this comparison, if it is within the range of the maximum allocation number, the communication control means 6 obtains the line buffer 81 from the line buffer Boolean 8 and allocates it (step 22>).

割当て最大数の範囲を越えた場合は通信制御手段6から
の回線バッファ割当て要求を拒否する(ステップ23)
。ステップ22によって割り当てられた回線バッファ8
1を使用して端末装置lとのデータ送受信が終了した場
合通信制御手段6は使用した回線バッファ81を回線バ
ッファ管理手段9を介して回線バッファプール8に返却
する。
If the maximum allocation limit is exceeded, the line buffer allocation request from the communication control means 6 is rejected (step 23).
. Line buffer 8 allocated by step 22
When data transmission/reception with the terminal device I is completed using the line buffer 1, the communication control means 6 returns the used line buffer 81 to the line buffer pool 8 via the line buffer management means 9.

ステップ23で回線バッファ81の取得要求が拒否され
た場合はデータの送受信を一時停止する。またオンライ
ンプログラム手段7が端末装置2とデータの送受信する
場合も同様の動作となる。
If the request to acquire the line buffer 81 is rejected in step 23, data transmission and reception is temporarily stopped. Further, when the online program means 7 transmits and receives data to and from the terminal device 2, the same operation occurs.

通信制御手段6は回線バッファ管理手段9に回線バッフ
ァ81の取得要求を行う。回線バッファ81の取得要求
を受けて回線バッファ管理手段9は通信回線5に割り当
てている回線バッファ数と回線バッファ割当てテーブル
10に格納されている通信回線5の割当て最大数とを比
較する(ステップ21)割当て最大数の範囲内であれば
通信制御手段6に回線バッファ81を回線バッファプー
ル8より取得して割り当てる(ステップ22)。割当て
最大数の範囲を越えた場合は通信制御手段6からの回線
バッファ割当て要求を拒否する(ステップ23)。
The communication control means 6 requests the line buffer management means 9 to acquire the line buffer 81 . In response to the request to acquire the line buffer 81, the line buffer management means 9 compares the number of line buffers allocated to the communication line 5 with the maximum number of line buffers allocated to the communication line 5 stored in the line buffer allocation table 10 (step 21). ) If it is within the range of the maximum allocation number, the communication control means 6 obtains and allocates the line buffer 81 from the line buffer pool 8 (step 22). If the range of the maximum allocation number is exceeded, the line buffer allocation request from the communication control means 6 is rejected (step 23).

これにより端末装置1とオンラインプログラム手段7と
のデータ送受信により回線バッファが全て使用されるこ
とがなくなり端末装置2とオンラインプログラム手段7
とのデータ送受信が不能になることはない。
As a result, the line buffer is not completely used due to data transmission and reception between the terminal device 1 and the online program means 7.
Data transmission and reception will not become impossible.

〔発明の効果〕〔Effect of the invention〕

以上説明したように本発明によれば、各々の通信回線で
使用する回線バッファをシステム初期化時にあらかじめ
与えられた回線バッファ割当最大数の範囲内で割り当て
ることにより、特定通信回線での回線バッファの偏った
使用を避は他の通信回線での回線バッファの使用を保障
しデータ送受信の不能を回避することができる効果があ
る。
As explained above, according to the present invention, by allocating line buffers to be used for each communication line within the maximum number of line buffer allocations given in advance at the time of system initialization, line buffers for a specific communication line can be allocated. Avoiding unbalanced usage has the effect of ensuring the use of line buffers on other communication lines and avoiding the inability to send and receive data.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明実施例の構成を示すブロック図。 第2図は本発明実施例の回線バッファ割当ての動作を示
すフローチャート。 1.2・・・端末装置、3・・・ホストコンピュータ、
4.5・・・通信回線、6・・・通信制御手段、7・・
・オンラインプログラム手段、8・・・回線バッファブ
ール、・9・・・回線バッファ管理手段、1o・・・回
線バッファ割当てテーブル、81・・・回線バッファ。
FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. FIG. 2 is a flowchart showing the operation of line buffer allocation according to the embodiment of the present invention. 1.2...Terminal device, 3...Host computer,
4.5... Communication line, 6... Communication control means, 7...
- Online program means, 8... Line buffer Boolean, -9... Line buffer management means, 1o... Line buffer allocation table, 81... Line buffer.

Claims (1)

【特許請求の範囲】 1、通信回線により複数の端末装置または他ホストコン
ピュータに接続され、 オンラインプログラム手段と、 前記端末装置または他ホストコンピュータとの間であら
かじめ定められた伝送制御手順に従ってデータの送受信
を行う通信制御手段と、 前記端末装置または他ホストコンピュータとのデータの
送受信時に前記通信手段により伝送データ情報格納領域
として一時的に用いる複数の回線バッファと を備えたホストコンピュータ装置において、この回線バ
ッファの中で未使用状態のものを管理する回線バッファ
プールと、 回線バッファの割当て最大数が記録された回線バッファ
割当てテーブルと、 前記通信制御手段からの回線バッファ取得要求に対しシ
ステム初期化時に各々の通信回線にあらかじめ与えられ
る回線バッファ割当て最大数の範囲内で前記回線バッフ
ァプールから取得した回線バッファを割当てる回線バッ
ファ管理手段とを備えたことを特徴とするホストコンピ
ュータ装置。
[Claims] 1. Connected to a plurality of terminal devices or other host computers via communication lines, and transmitting and receiving data between the online program means and the terminal devices or other host computers according to a predetermined transmission control procedure. and a plurality of line buffers that are temporarily used as transmission data information storage areas by the communication means when transmitting/receiving data to/from the terminal device or other host computer. a line buffer pool for managing unused line buffers; a line buffer allocation table in which the maximum number of allocated line buffers is recorded; and a line buffer allocation table that records the maximum number of allocated line buffers; A host computer device comprising: line buffer management means for allocating line buffers obtained from the line buffer pool within a maximum number of line buffers allocated in advance to a communication line.
JP1182046A 1989-07-13 1989-07-13 Host computer device Pending JPH0346049A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1182046A JPH0346049A (en) 1989-07-13 1989-07-13 Host computer device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1182046A JPH0346049A (en) 1989-07-13 1989-07-13 Host computer device

Publications (1)

Publication Number Publication Date
JPH0346049A true JPH0346049A (en) 1991-02-27

Family

ID=16111398

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1182046A Pending JPH0346049A (en) 1989-07-13 1989-07-13 Host computer device

Country Status (1)

Country Link
JP (1) JPH0346049A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009174566A (en) * 2008-01-22 2009-08-06 Nsk Ltd Toroidal type continuously variable transmission

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009174566A (en) * 2008-01-22 2009-08-06 Nsk Ltd Toroidal type continuously variable transmission

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