84 lines
1.3 KiB
V
84 lines
1.3 KiB
V
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module main
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__global fd [2]int
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__global buffer [16]byte
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const (
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sample_text_file1 = ""
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)
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fn check_read_write_pipe() {
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/*
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Checks the following system calls:
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sys_pipe
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sys_write
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sys_read
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sys_close
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*/
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println ("checking pipe read/write")
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fd[0] = -1
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fd[1] = -1
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assert fd[0] == -1
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assert fd[1] == -1
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a := sys_pipe(intptr(fd))
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assert a != -1
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assert fd[0] != -1
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assert fd[1] != -1
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test_data := "test_data"
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b := test_data.len + 1
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mut c := sys_write (fd[1], test_data.str, u64(b))
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assert c == b
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c = sys_read(fd[0], byteptr(buffer), u64(b))
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assert c == b
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assert buffer[b-1] == 0
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for i in 0..b {
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assert test_data[i] == buffer[i]
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}
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assert 0 == sys_close(fd[0])
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assert 0 == sys_close(fd[1])
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assert 0 != sys_close(-1)
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println ("pipe read/write passed")
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}
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fn check_read_file() {
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/*
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Checks the following system calls:
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sys_read
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sys_write
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sys_close
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*/
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test_file := "sample_text1.txt"
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sample_text := "Do not change this text.\n"
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println ("checking read file")
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fd := sys_open(test_file.str, int(fcntl.o_rdonly), 0)
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assert fd > 0
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n := sample_text.len
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c := sys_read(fd, buffer, u64(n*2))
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assert c == n
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for i in 0..n {
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assert sample_text[i] == buffer[i]
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}
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assert 0 == sys_close(fd)
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println("read file passed")
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}
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fn main() {
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check_read_write_pipe()
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check_read_file()
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sys_exit(0)
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}
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