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2020 May 14
1
system(timeout=) may timeout with 0 exit code
Hi R developers, I observed that system(timeout=) may still return exit code 0, when killing the process due to timeout. In src/unix/sys-unix.c there is #define KILL_SIGNAL1 SIGINT #define KILL_SIGNAL2 SIGTERM #define KILL_SIGNAL3 SIGKILL #define EMERGENCY_TIMEOUT 20 After little bit of debugging I observed that total time of system call is provided timeout value + 20s. That means EMERGENCY_TIMEOUT 20 kicked in, adding 20 seconds. I don't have a reproducible example, but following code, and output file below should be...