1POSIX_SPAWNATTR_GETSCHEDPOLIPCOYS(IPX)Programmer'sPMOaSnIuXa_lSPAWNATTR_GETSCHEDPOLICY(P)
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6 posix_spawnattr_getschedpolicy, posix_spawnattr_setschedpolicy - get
7 and set the spawn-schedpolicy attribute of a spawn attributes object
8 (ADVANCED REALTIME)
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11 #include <spawn.h>
12 #include <sched.h>
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14 int posix_spawnattr_getschedpolicy(const posix_spawnattr_t *
15 restrict attr, int *restrict schedpolicy);
16 int posix_spawnattr_setschedpolicy(posix_spawnattr_t *attr,
17 int schedpolicy);
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21 The posix_spawnattr_getschedpolicy() function shall obtain the value of
22 the spawn-schedpolicy attribute from the attributes object referenced
23 by attr.
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25 The posix_spawnattr_setschedpolicy() function shall set the spawn-
26 schedpolicy attribute in an initialized attributes object referenced by
27 attr.
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29 The spawn-schedpolicy attribute represents the scheduling policy to be
30 assigned to the new process image in a spawn operation (if
31 POSIX_SPAWN_SETSCHEDULER is set in the spawn-flags attribute). The
32 default value of this attribute is unspecified.
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35 Upon successful completion, posix_spawnattr_getschedpolicy() shall
36 return zero and store the value of the spawn-schedpolicy attribute of
37 attr into the object referenced by the schedpolicy parameter; other‐
38 wise, an error number shall be returned to indicate the error.
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40 Upon successful completion, posix_spawnattr_setschedpolicy() shall
41 return zero; otherwise, an error number shall be returned to indicate
42 the error.
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45 These functions may fail if:
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47 EINVAL The value specified by attr is invalid.
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50 The posix_spawnattr_setschedpolicy() function may fail if:
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52 EINVAL The value of the attribute being set is not valid.
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55 The following sections are informative.
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58 None.
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61 These functions are part of the Spawn and Process Scheduling options
62 and need not be provided on all implementations.
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65 None.
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68 None.
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71 posix_spawn() , posix_spawnattr_destroy() , posix_spawnattr_init() ,
72 posix_spawnattr_getsigdefault() , posix_spawnattr_getflags() ,
73 posix_spawnattr_getpgroup() , posix_spawnattr_getschedparam() ,
74 posix_spawnattr_getsigmask() , posix_spawnattr_setsigdefault() ,
75 posix_spawnattr_setflags() , posix_spawnattr_setpgroup() , posix_spaw‐
76 nattr_setschedparam() , posix_spawnattr_setsigmask() , posix_spawnp() ,
77 the Base Definitions volume of IEEE Std 1003.1-2001, <sched.h>,
78 <spawn.h>
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81 Portions of this text are reprinted and reproduced in electronic form
82 from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
83 -- Portable Operating System Interface (POSIX), The Open Group Base
84 Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
85 Electrical and Electronics Engineers, Inc and The Open Group. In the
86 event of any discrepancy between this version and the original IEEE and
87 The Open Group Standard, the original IEEE and The Open Group Standard
88 is the referee document. The original Standard can be obtained online
89 at http://www.opengroup.org/unix/online.html .
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93IEEE/The Open Group 2003 POSIX_SPAWNATTR_GETSCHEDPOLICY(P)