ZCOM C I/F Library Routines
ZSEND (3X)
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| ZSEND (3X) |
NAME |
| zsend – Send data buffer to a ZLU |
SYNOPSIS |
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#include | <zcom/zcomsys.h> | |
#include | <zcom/zcomcall.h> /* if compiled with ANSI C (recommended) */ | |
int32 zsend (zap, mode, mhp, ibuf, len, rstat) | ||
zaddr_type | *zap; | |
uint32 |
| mode; |
zmhd_type |
| *mhp; |
char |
| *ibuf; |
int32 |
| len |
int32 |
| *rstat; |
DESCRIPTION | Routine zsend sends a buffer to the specified ZLU. The zcntl(3X) routine | |
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| is used for sending control messages to a terminal ZLU. |
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| Zero length buffers are allowed (usually sent to other program ZLUs). |
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| For example, a zero length send may be used to signify a special event |
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| with some information in the header tag words, |
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| The response returned from zsend is through the primary ZLU unless a |
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| different source ZLU is specified in the header |
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| Note that a program must call zopen() to allocate a primary or auxiliary |
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| input ZLU before calling the zsend() routine. This must be done even if |
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| the program does not need an input ZLU, for example, if it is not doing |
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| any zread() calls and is only doing zsend() calls with mode = |
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| ZcMODE_NO_WAIT (0) (send |
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| return status. |
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| The libraries libzcom_c.a and libpthread.a must be linked into the calling |
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| program by giving the options |
Threads |
| This routine may be called from a |
Considerations | POSIX (1003.1c) kernel threads API package. This routine has the | |
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| following characteristics when called by a |
Chapter 4 | 307 |