posix_spawnattr_getflags, posix_spawnattr_setflags - get and set the spawn-flags attribute of a spawn attributes object (ADVANCED REALTIME)
[SPN] #include <spawn.h>
int posix_spawnattr_getflags(const posix_spawnattr_t *restrict attr,
short *restrict flags);
int posix_spawnattr_setflags(posix_spawnattr_t *attr, short flags);
The posix_spawnattr_getflags() function shall obtain the value of the spawn-flags attribute from the attributes object referenced by attr.
The posix_spawnattr_setflags() function shall set the spawn-flags attribute in an initialized attributes object referenced by attr.
The spawn-flags attribute is used to indicate which process attributes are to be changed in the new process image when invoking posix_spawn() or posix_spawnp(). It is the bitwise-inclusive OR of zero or more of the following flags:
These flags are defined in <spawn.h>. The default value of this attribute shall be as if no flags were set.
Upon successful completion, posix_spawnattr_getflags() shall return zero and store the value of the spawn-flags attribute of attr into the object referenced by the flags parameter; otherwise, an error number shall be returned to indicate the error.
Upon successful completion, posix_spawnattr_setflags() shall return zero; otherwise, an error number shall be returned to indicate the error.
These functions may fail if:
- The value specified by attr is invalid.
The posix_spawnattr_setflags() function may fail if:
- The value of the attribute being set is not valid.
These functions are part of the Spawn option and need not be provided on all implementations.
posix_spawn, posix_spawnattr_destroy, posix_spawnattr_getsigdefault, posix_spawnattr_getpgroup, posix_spawnattr_getschedparam, posix_spawnattr_getschedpolicy, posix_spawnattr_getsigmask
First released in Issue 6. Derived from IEEE Std 1003.1d-1999.
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