pSOSystem System Calls - Read

4 pNA+ System Calls
This chapter provides detailed information on each system call in the pNA+
component of pSOSystem. The calls are listed alphabetically, with a multipage
section of information for each call. Each call’s section includes its syntax, a
detailed description, its arguments, its return value, and any error codes that it can
return. Where applicable, the section also includes the headings “Notes,” “Usage,”
and “See Also.” “Notes” contains any important information not specifically related
to the call description; “Usage” provides detailed usage information; and “See Also”
indicates other calls that have related information.
Structures described in this chapter are also defined in the file . Structures
must be word-aligned and must not be packed.
If you need to look up a system call by its functionality, refer to Appendix A, “Tables
of System Calls,” which lists the calls alphabetically by component and provides a
brief description of each call.
For more information on error codes, refer to Appendix B, “Error Codes,” which lists
the codes numerically and shows which pSOSystem calls are associated with each
one.
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