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Sys command truncates captured console output [message #48530]

Sat, 15 July 2017 12:11

deep
Messages: 268
Registered: July 2011
Location: Bangalore

Experienced Member

Hi

I am running sed script on a 1 Mb file from UPP code using Sys(cmd,output) . Ubuntu 16.04. UPP ver 10205
It captures complete output of sed

Recently I changed to UPP ver 11213
Now my Captured output of Sys("SED command",output); is truncated to 2Kb.

I found following change in "LocalProcess.cpp" from version 10205 to 11213.

Ver 10205 Line 513 while((sv = select(pipe[0]+1, set, NULL, NULL, &tval)) > 0)

Ver 11213 Line 513 if ((sv = select(pipe[0]+1, set, NULL, NULL, &tval)) > 0)

Changed "if" back to "while" is working fine for me.

File Core/LocalProcess.cpp working code

		while((sv = select(pipe[0]+1, set, NULL, NULL, &tval)) > 0) {
			LLOG("Read() -> select");
			char buffer[1024];
			int done = read(pipe[0], buffer, sizeof(buffer));
			LLOG("Read(), read -> " << done);
			if(done > 0)
				res[wp].Cat(buffer, done);
			else if (done == 0) {
				close(pipe[0]);
				pipe[0] = -1;
			}
		}

Warm Regards

Deepak

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