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shmat, shmdt — ??ͭ???????򥢥??å??ޤ??ϥǥ??å?????

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Standard C Library (libc, -lc)

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<machine/param.h> <sys/types.h> <sys/ipc.h> <sys/shm.h> void * shmat(int shmid, const void *addr, int flag) int shmdt(const void *addr)

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shmat() ?????ƥॳ?????ϡ? shmid ?ˤ??äƼ??̤??줿??ͭ?????ꥻ???????Ȥ??ƤӽФ??ץ??????? ???ɥ쥹???֤˥????å????ޤ??? ?????????Ȥ??????å??????륢?ɥ쥹?ϼ??Τ褦?˷??ꤵ???ޤ?:

• addr ?? 0 ?ξ??硢?????????Ȥϡ??????ͥ뤬???򤷤????ɥ쥹?˥????å??????ޤ???
• addr ?? 0 ?Ǥʤ????????? SHM_RND ?? flag ?ǻ??ꤵ???ʤ????硢?????????Ȥϻ????Υ??ɥ쥹?˥????å??????ޤ???
• addr ?????ꤵ???Ƥ??ꡢ?????? SHM_RND ?????ꤵ???Ƥ??????硢 addr ?ϺǤ??ᤤ SHMLBA ???ܿ????ڼΤƤ????ޤ???

shmdt() ?ϡ? addr ?ǻ??ꤵ???륢?ɥ쥹?ˤ??붦ͭ?????ꥻ???????Ȥ򡢸ƤӽФ??ץ??????? ???ɥ쥹???֤????ǥ??å????ޤ???

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?????˴?λ?????ȡ? shmat() ?ϥ????????Ȥ??????å??????Ƥ??륢?ɥ쥹???֤??ޤ??? ?????Ǥʤ??????? -1 ???֤??졢???顼?򼨤??????? errno ?????ꤵ???ޤ???

The shmdt() function returns the value 0 if successful; otherwise the value -1 is returned and the global variable errno is set to indicate the error.

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shmat() ?????ƥॳ?????ϼ??ξ????˽????????Ԥ??ޤ?:

[EINVAL]

shmid ???б????붦ͭ?????ꥻ???????Ȥ????Ĥ????ޤ????Ǥ?????

[EINVAL]

addr ??????ͭ???ʥ??ɥ쥹?ǤϤ????ޤ????Ǥ?????

shmdt() ?????ƥॳ?????ϼ??ξ????˽????˼??Ԥ??ޤ?:

[EINVAL]

addr ?????϶?ͭ?????ꥻ???????Ȥ??ؤ??Ƥ??ޤ?????

??Ϣ????

shmctl(2), shmget(2)