Package com.sun.jna.platform.linux
Interface LibRT
- All Superinterfaces:
- Library
POSIX.1b Realtime Extensions library (librt). Functions in this library
 provide most of the interfaces specified by the POSIX.1b Realtime Extension.
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Nested Class SummaryNested classes/interfaces inherited from interface com.sun.jna.LibraryLibrary.Handler
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Field SummaryFieldsFields inherited from interface com.sun.jna.LibraryOPTION_ALLOW_OBJECTS, OPTION_CALLING_CONVENTION, OPTION_CLASSLOADER, OPTION_FUNCTION_MAPPER, OPTION_INVOCATION_MAPPER, OPTION_OPEN_FLAGS, OPTION_STRING_ENCODING, OPTION_STRUCTURE_ALIGNMENT, OPTION_SYMBOL_PROVIDER, OPTION_TYPE_MAPPER
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Method SummaryModifier and TypeMethodDescriptionintCreates and opens a new, or opens an existing, POSIX shared memory object.intshm_unlink(String name) Removes an object previously created byshm_open(java.lang.String, int, int).
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Field Details- 
INSTANCE
 
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Method Details- 
shm_openCreates and opens a new, or opens an existing, POSIX shared memory object. A POSIX shared memory object is in effect a handle which can be used by unrelated processes tommap()the same region of shared memory.- Parameters:
- name- The shared memory object to be created or opened. For portable use, a shared memory object should be identified by a name of the form- /somenamethat is, a null-terminated string of up to- NAME_MAX(i.e., 255) characters consisting of an initial slash, followed by one or more characters, none of which are slashes.
- oflag- A bit mask created by ORing together exactly one of- O_RDONLYor- O_RDWRand any of the other flags- O_CREAT,- O_EXCL, or- O_TRUNC.
- mode- When- oflagincludes- O_CREAT, the object's permission bits are set according to the low-order 9 bits of mode, except that those bits set in the process file mode creation mask (see- umask(2)) are cleared for the new object.
- Returns:
- On success, returns a file descriptor (a nonnegative integer). On
         failure, returns -1. On failure, errnois set to indicate the cause of the error.
 
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shm_unlinkRemoves an object previously created byshm_open(java.lang.String, int, int).- Parameters:
- name- The shared memory object to be unlinked.
- Returns:
- returns 0 on success, or -1 on error. On failure, errnois set to indicate the cause of the error.
 
 
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