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pSOSystem System Calls - Read

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open_f pHILE+ <strong>System</strong> <strong>Calls</strong><br />

Notes<br />

Hex Mnemonic Description<br />

0x2079 E_ECANTDECODEARGS Decode arguments error.<br />

0x207A E_EUNKNOWNHOST Unknown host name.<br />

0x207B E_EPROGNOTREGISTERED Remote program is not registered.<br />

0x207C E_UNKNOWNPROTO Unknown protocol.<br />

0x207D E_EINTR Call interrupted.<br />

0x207E ERPC All other RPC errors.<br />

Primary Volume Descriptor<br />

As a special case on CD-ROM volumes, the filename _VOLUME.$Y$ in the root<br />

directory is used to read the primary volume descriptor, which is the starting point<br />

for locating all information on the volume. When you read _VOLUME.$Y$, pHILE+<br />

omits the fields from it that are unused by your processor and byte-swaps the<br />

remaining fields to the proper order for the processor. Therefore, the primary volume<br />

descriptor can be read into the structure type that follows.<br />

2-80 <strong>pSO<strong>System</strong></strong> <strong>System</strong> <strong>Calls</strong>

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