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Top Forums Shell Programming and Scripting Control from UNIX script is not returning to the Parent program Post 302917222 by Hypesslearner on Monday 15th of September 2014 06:21:09 AM
Old 09-15-2014
Control from UNIX script is not returning to the Parent program

Hi All,

My program flow is as below

Windows batch -- > Cygwin batch --> zsh script

There are multiple Cygwin batch scripts that are called from Windows batch file . But when i am executing the first cygwin batch script the control goes to the zsh file and executes and stoping from there .

Please let me know what could be the issue.

At the end of zsh file i am using this

Code:
RTNVAL=0
exit ${RTNVAL}


Last edited by Scrutinizer; 09-15-2014 at 04:32 PM..
 

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iob_send(3)						     Library Functions Manual						       iob_send(3)

NAME
iob_send - send I/O batch SYNTAX
#include <iob.h> int64 iob_send(int64 s,io_batch* b); DESCRIPTION
iob_send sends the (rest of) b over the socket s. iob_send returns the number of bytes written, 0 if there were no more bytes to be written in the batch, -1 for EAGAIN, or -3 for a perma- nent error (for example "connection reset by peer"). The normal usage pattern is using io_wait to know when a descriptor is writable, and then calling iob_send until it returns 0, -1 or -3. If it returns 0, terminate the loop (everything was written OK). If it returns -1, call io_wait again. If it returned -3, signal an error and close the socket. The benefit of the I/O batch API is that it exploits platform specific APIs like FreeBSD's sendfile. The file contents will always be sent in a way that allows the operating systems to perform zero copy TCP, and the buffers will always be sent using as few syscalls as possible and avoiding unnecessary copying (using writev). SEE ALSO
iob_reset(3), iob_send(3), iob_addbuf(3), iob_adds_free(3), iob_addfile(3), iob_prefetch(3) iob_send(3)
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