Gamma™ :  Version 5.4
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shm_unlink

shm_unlink — removes shared memory objects.

Syntax

shm_unlink (share_name)

Arguments

share_name
The name of the shared object to delete.

Returns

t on success, or nil on failure, with errno set.

Description

This function is currently only available in QNX 4. It attempts to remove the shared object, share_name. If more than one process or link into the shared memory area exists the shared object will not be removed.

Possible values of errno are:

  • EACCESS Permission to unlink the object is denied
  • ENAMETOOLONG The lenght of the name of the object is too long
  • ENOENT The named shared memory object does not exist.
  • ENOSYS This function is not supported by this implementation.

Example

Gamma> shm_unlink("card_mem");
t
Gamma>

See Also

shm_open, mmap

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