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  1. #1
    Registered User
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    Aug 2007
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    Arrow What is the best inter-process communication method?

    What is the best inter-process communication method?

    I would like to know the best inter-process communication method. Plz considering the following scenario:

    Mail client.
    I need to write a mail server and a mail client on symbian. The server is responsible for communication between SMTP/POP3 mail server. The mail client is user interface for user response. Now the question is :

    (1) What is the best method of inter-process communication method, science the mail server and the client should be in different process. The server is avoke when the handset is poweron, while the client is triggered only when user select it or the server notice it about a mail comming.

    (2) Moreover, the communication content between mail server and client have a variaty of type, such as synchronization, text data/vedio/audio attachment transfer an so on. How should these complicated content types are considered?

    (3) What is the best method for inter-process communication between the mail server reside on the handset and the SMTP/POP3 mail server reside on a MSWindows or Linux server, since the complexity of content types should also be considered?

  2. #2
    Nokia Developer Moderator
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    Re: What is the best inter-process communication method?

    This forum is for Chinese speakers so the use of the Chinese language would be more appropriate. Otherwise is just another duplicate of the already duplicated messages in the common forums.
    -- Lucian

    If you are not yet a DVLUP member it is time to correct that mistake :) Click here to join: http://www.dvlup.com/lucian/Invite

  3. #3
    Super Contributor
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    Re: What is the best inter-process communication method?

    On S60 platform, client/server architecture itself provides a good mechanism for inter-process communications. The exact example codes can be found at:

    \Symbian\9.1\S60_3rd\Examples\Base\IPC
    Liuxg
    Forum Nokia <a href="http://wiki.forum.nokia.com/index.php/Qt_开发"><font color="red">Qt Application Development Resources</font></a>

  4. #4
    Registered User
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    Re: What is the best inter-process communication method?

    对不起,那个电脑不能输入中文。
    我看了IPC部分,但里面对大块数据的进程间交换没有介绍,介绍的IPC好像只能传递4个参数,如果用到了subsession,则只能传递3个。没有类似windows的共享内存的机制。

  5. #5
    Super Contributor
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    Re: What is the best inter-process communication method?

    You surely can do that. You may pass a pointer rather than a value. Meanwhile, you may also use shared memory to do that. Please search for RChunk API. Also, on Symbian, mailbox mechanism is also used. Publish and subscribe is also a good method to do IPC. There are many ways to do IPC on Symbian.
    Liuxg
    Forum Nokia <a href="http://wiki.forum.nokia.com/index.php/Qt_开发"><font color="red">Qt Application Development Resources</font></a>

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