From caec20e9886fd6d0437b59a9de48a7b686a2cc09 Mon Sep 17 00:00:00 2001 From: dzwdz Date: Wed, 6 Jul 2022 19:46:35 +0200 Subject: kernel/pipes: read & write support --- src/init/tests/pipe.c | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 src/init/tests/pipe.c (limited to 'src/init/tests/pipe.c') diff --git a/src/init/tests/pipe.c b/src/init/tests/pipe.c new file mode 100644 index 0000000..bbfe79a --- /dev/null +++ b/src/init/tests/pipe.c @@ -0,0 +1,41 @@ +#define TEST_MACROS +#include +#include +#include +#include + +static const char *pipe_msgs[2] = {"hello", "world"}; + +static void test_pipe_child(handle_t pipe) { + int ret = _syscall_write(pipe, pipe_msgs[0], 5, -1); + assert(ret == 5); + + ret = _syscall_write(pipe, pipe_msgs[1], 5, -1); + assert(ret == 5); +} + +static void test_pipe_parent(handle_t pipe) { + char buf[16]; + int ret = _syscall_read(pipe, buf, 16, 0); + assert(ret == 5); + assert(!memcmp(buf, pipe_msgs[0], 5)); + + _syscall_read(pipe, buf, 16, 0); + assert(ret == 5); + assert(!memcmp(buf, pipe_msgs[1], 5)); // wrong compare for test +} + +void test_pipe(void) { + handle_t pipe = _syscall_pipe(0); + assert(pipe > 0); + + if (!_syscall_fork(0, NULL)) { + test_pipe_child(pipe); + _syscall_exit(0); + } else { + test_pipe_parent(pipe); + _syscall_await(); + } + + // TODO kill process that's waiting on a pipe +} -- cgit v1.2.3