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Joachim Wiberg
92bb0ca399
The runbg() function is a delayed execvp() that has double-forked to the background (to not create zombies). It is useful for running commands in the background for APIs that need to return a reply, e.g. a NETCONF RPC to reboot the system. Compared to the original in Infix, this version double forks to reparent itself to PID 1 (init), closes all open files, including stdio. Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
24 lines
413 B
C
24 lines
413 B
C
#include "check.h"
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#define file "/tmp/runbg.txt"
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int main(void)
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{
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char *cmd[] = {
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"sh", "-c", "echo 'hello world' > " file, NULL
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};
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erase(file);
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test(runbg(cmd, 200000), "Calling runbg");
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if (test(fexist(file), "Verifying %s does not yet exist", file))
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return 1;
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test(usleep(300000), "Waiting for runbg");
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if (test(!fexist(file), "Verifying %s has been created", file))
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return 1;
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return 0;
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}
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