SOCU:fcntl: Difference between revisions
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Created page with "=Request= {| class="wikitable" border="1" |- ! Index Word ! Description |- | 0 | Header code [0x001300C2] |- | 1 | Socket descriptor |- | 2 | int cmd |- | 3 | arg |- | 4 | Val..." |
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| POSIX return value | | POSIX return value | ||
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=Description= | |||
The input cmd must be either F_GETFL(3)/F_SETFL(4), otherwise an error is returned. For fd-flags, O_NONBLOCK is bitmask value 0x4. | |||
Latest revision as of 07:40, 1 May 2014
Request
| Index Word | Description |
|---|---|
| 0 | Header code [0x001300C2] |
| 1 | Socket descriptor |
| 2 | int cmd |
| 3 | arg |
| 4 | Value 0x20 (processID header) |
| 5 | ProcessID set by the ARM11 kernel. |
Response
| Index Word | Description |
|---|---|
| 0 | Header code |
| 1 | Result code |
| 2 | POSIX return value |
Description
The input cmd must be either F_GETFL(3)/F_SETFL(4), otherwise an error is returned. For fd-flags, O_NONBLOCK is bitmask value 0x4.