root / lab4 / .minix-src / include / sys / svrctl.h @ 13
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1 | 13 | up20180614 | /*
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2 | sys/svrctl.h
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3 | |||
4 | Created: Feb 15, 1994 by Philip Homburg <philip@cs.vu.nl>
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5 | */
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6 | |||
7 | #ifndef _SYS__SVRCTL_H
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8 | #define _SYS__SVRCTL_H
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9 | |||
10 | #include <sys/types.h> |
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11 | |||
12 | /* Server control commands have the same encoding as the commands for ioctls. */
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13 | #include <minix/ioctl.h> |
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14 | |||
15 | /* PM controls. */
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16 | #define PMGETPARAM _IOWR('P', 0, struct sysgetenv) |
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17 | #define PMSETPARAM _IOW('P', 1, struct sysgetenv) |
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18 | |||
19 | #define OPMGETPARAM _IOW('M', 5, struct sysgetenv) /* old, phasing out */ |
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20 | #define OPMSETPARAM _IOR('M', 7, struct sysgetenv) /* old, phasing out */ |
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21 | |||
22 | /* VFS controls */
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23 | #define VFSGETPARAM _IOWR('F', 0, struct sysgetenv) |
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24 | #define VFSSETPARAM _IOW('F', 1, struct sysgetenv) |
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25 | |||
26 | struct sysgetenv {
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27 | char *key; /* Name requested. */ |
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28 | size_t keylen; /* Length of name including \0. */
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29 | char *val; /* Buffer for returned data. */ |
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30 | size_t vallen; /* Size of return data buffer. */
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31 | }; |
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32 | |||
33 | int svrctl(unsigned long _request, void *_data); |
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34 | |||
35 | #endif /* _SYS__SVRCTL_H */ |