26 lines
693 B
C
26 lines
693 B
C
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/* Opens a file and then runs a subprocess that tries to close
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the file. (Pintos does not have inheritance of file handles,
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so this must fail.) The parent process then attempts to use
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the file handle, which must succeed. */
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#include <stdio.h>
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#include <syscall.h>
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#include "tests/userprog/sample.inc"
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#include "tests/lib.h"
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#include "tests/main.h"
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void
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test_main (void)
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{
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char child_cmd[128];
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int handle;
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CHECK ((handle = open ("sample.txt")) > 1, "open \"sample.txt\"");
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snprintf (child_cmd, sizeof child_cmd, "child-close %d", handle);
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msg ("wait(exec()) = %d", wait (exec (child_cmd)));
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check_file_handle (handle, "sample.txt", sample, sizeof sample - 1);
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}
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