| Topic: |
DEVELOP > c-Plus-Plus |
| User: |
"Peter" |
| Date: |
02 Mar 2004 07:19:37 PM |
| Object: |
How to get return value from a spawned process? |
Hi,
I have the following scenarios: client/server programs implemented with
winsock are installed on all systems inthe network (assume it contains s1,
s2, and s3, and other systems). If I send a command from s0 client to s1
server, which ask s1 server to execute a command line of s1 client to talk
with s2 server, s2 server will return value (error code in my case) to s1
client. My question is how I can get the returned value on s0?
The command line execution on s1 is realized by calling system(), to which I
pass the client program name (the client program will returns error code),
and the processed data from s0, but system() only return -1 or 0 to indicate
error or succeed. I also looked at CreateProcess(), but still couldn't see
how I can get the returned value from client execution.
Anybody got idea?
Thanks,
Peter
.
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| User: "Victor Bazarov" |
|
| Title: Re: How to get return value from a spawned process? |
02 Mar 2004 07:27:52 PM |
|
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"Peter" <ybi10@yahoo.com> wrote...
I have the following scenarios: client/server programs implemented with
winsock are installed on all systems inthe network (assume it contains s1,
s2, and s3, and other systems). If I send a command from s0 client to s1
server, which ask s1 server to execute a command line of s1 client to talk
with s2 server, s2 server will return value (error code in my case) to s1
client. My question is how I can get the returned value on s0?
The command line execution on s1 is realized by calling system(), to which
I
pass the client program name (the client program will returns error code),
and the processed data from s0, but system() only return -1 or 0 to
indicate
error or succeed. I also looked at CreateProcess(), but still couldn't see
how I can get the returned value from client execution.
Anybody got idea?
Since we can only suggest solutions that are or can be written in the
Standard C++, my only suggestion is to create a file with all the return
codes you want.
The rest is off-topic.
Victor
.
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