Open topic with navigation

# Shared Memory Transport: Parameters Reference

These parameters are specific to shared memory transports in the configuration interface.

For web API access to transport definitions, see Transport Definition Objects.

GUI Parameter | JSON Attribute | Description
--- | --- | ---
Segment Name | `segment_name` | Required. Name of the shared memory segment. Use only ASCII alphanumeric characters in the segment name. The maximum length of the segment name depends on the operating system: Mac OS X: 16 characters UNIX: PATH_MAX Windows: MAX_PATH
Segment Size | `size` | Size of the shared memory segment.
Directory Name | `dirname` | Optional. Each shared memory transport uses a scratch directory to store information about the runtime transports that use its shared memory segments. When present, this directory path specifies the scratch directory. (If the directory you specify doesn’t exist in the file system, the transport attempts to create it.) When absent, the default scratch directory is /tmp (or its equivalent on non-UNIX platforms).
Global Scope | `globalscope` | Windows only (on other platforms, the base library ignores this parameter). On Windows platforms, shared memory segments can have either of two scopes: Local to a specific user, that is, a login name. Global, that is, available to all usernames. If the process instances using the transport run with different usernames, then you must use a global segment. To specify a global segment, enable this parameter (or in the web API, set the JSON attribute to `global`). You may use a local segment only if the process instances using the transport all run with the same username. To specify a local segment, specific to the user running the application process, disable this parameter (or in the web API, set the JSON attribute to `local`). For further information, see documentation for the CreateFileMapping function on the Microsoft Developer Network (ISDN) web site.

See also, Buffer and Performance Settings for Transports.

Did you find this helpful?

Yes No
Great!
Thanks for taking the time to give us some feedback.
Sorry about that

Why wasn't this helpful? (check all that apply)

Could not find what I was looking for
Instructions confusing or unclear
Instructions did not work

Want to tell us more?

Please select at least one option or provide details about the issue!!

Error occurred while submitting feedback.

Error2 occurred while submitting feedback.

TIBCO FTL® - Enterprise Edition

Copyright © 2009-2024. Cloud Software Group, Inc. All Rights Reserved.