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msgsnd

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Standard C Library (libc, -lc) —

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<sys/types.h> <sys/ipc.h> <sys/msg.h> int msgsnd(int msqid, void *msgp, size_t msgsz, int msgflg)

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msgsnd() ?ؿ??ϡ? msqid ?ǻ??ꤵ???Ƥ??????å????????塼?إ??å????? ?????????ޤ??? msgp ?ϡ????å????????ޤ๽¤?Τ??ؤ??ޤ??????ι?¤?Τϡ? ?ʲ??Υ????Ф??鹽???????Ƥ???ɬ?פ??????ޤ???

    long mtype;    /* ???å??????????? */
    char mtext[1]; /* ???å????????? */

mtype ?? 0 ?????礭???????ǡ????å????????????˻??Ѥ????ޤ? ( msgrcv(3) ????)?? mtext ?ϥХ??Ȥ??????ǡ??????ƥ????? (MSGMAX) ?ޤǤΥ??????Ǥ???

???å????????塼?ˤ??Ǥ?¸?ߤ????Х??ȿ??? msgsz ?ι??פ??????å????????塼?κ????Х??ȿ? (msg_qbytes ?? msgctl(3) ????) ?????礭?????硢?ޤ??ϥ????ƥ????ΤΤ??٤ƤΥ??塼??¸?ߤ??? ???å??????????????ƥ????¤ˤ??Ǥ????????ʤäƤ????????ϡ? msgflg ?? msgsnd() ??ư?????????ޤ??? msgflg ?? IPC_NOWAIT ?ޥ????????ꤵ???Ƥ??????硢?ƤӽФ??Ϥ??????ᤵ???ޤ??? msgflg ?? IPC_NOWAIT ?????ꤵ???Ƥ??ʤ????硢?ƽФ??ϰʲ??ξ??֤ˤʤ??ޤǥ֥??å??????ޤ???

?ƽФ????֥??å??????????郎?ʤ??ʤ??ޤǡ????ξ??郎?ʤ??ʤ??ȡ? ???å????????????????ޤ???
???å????????塼?????????????ޤǡ????ξ????? -1 ???ᤵ?졢 errno ?? EINVAL ?????ꤵ???ޤ???
?ƤӽФ?¦???????ʥ????????????ޤǡ??ƤӽФ??ϡ? errno ?? EINTR ?????ꤵ?줿???֤??????ޤ???

?ƤӽФ??????꤬ȯ?????ʤ??ä????硢???å????????塼?˴?Ϣ???? ?ǡ?????¤?ϰʲ??Τ褦?˹????????ޤ???

msg_cbytes ???????å??????Υ??????????礭???ʤ??ޤ???
msg_qnum ?? 1 ???ä??????ޤ???
msg_lspid ???ƤӽФ??ץ??????Υץ????? ID ?????ꤵ???ޤ???
msg_stime ?????ߤλ????????ꤵ???ޤ???

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

???顼

msgsnd() ?ϡ??ʲ??Τ褦?ʾ????˥??顼?Ȥʤ??ޤ???

[EINVAL]

msqid ???????????å????????塼 ID ?Ǥʤ????硣

?꥽?????????ѤǤ????褦?ˤʤꡢ???å????????????Ǥ??? ???֤ˤʤ뤳?Ȥ? msgsnd() ???ԤäƤ????֤ˡ????å????????塼?????????줿???硣

msgsz ?? 0 ???꾮???????? msg_qbytes ?????礭?????硣

mtype ?? 0 ?????礭???ʤ????硣

[EACCES]

?ƽФ??ץ??????˥??å????????塼?ν????߸????ʤ????硣

[EAGAIN]

???塼???????ƥ????Τ˥??å??????ѤΥ??ڡ??????ʤ??? msgflg ?? IPC_NOWAIT ?????ꤵ???Ƥ??????硣

[EFAULT]

msgp ???????????ɥ쥹???ؤ??Ƥ??ʤ????硣

[EINTR]

?????ƥॳ???뤬???????ʥ????????ˤ??äƳ??????ޤ줿???硣

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NetBSD ?? FreeBSD ?ϡ????å????????塼?????????줿?????˻??Ѥ??٤????顼?? EIDRM ?????????Ƥ??ޤ?????

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???å????????塼?ϡ? AT&T Unix System V ?κǽ??Υ??꡼???? ?ɲä????ޤ?????