From 6bea8cd391125734339dfb83db498a8651c9f7f7 Mon Sep 17 00:00:00 2001
From: dzwdz
Date: Fri, 19 Aug 2022 18:30:35 +0200
Subject: syscall/fork: allow sharing handles between threads
---
src/user/app/tests/kernel/threads.c | 25 +++++++++++++++++++++++--
1 file changed, 23 insertions(+), 2 deletions(-)
(limited to 'src/user/app/tests')
diff --git a/src/user/app/tests/kernel/threads.c b/src/user/app/tests/kernel/threads.c
index 9f08c39..2964883 100644
--- a/src/user/app/tests/kernel/threads.c
+++ b/src/user/app/tests/kernel/threads.c
@@ -1,16 +1,15 @@
#include "../tests.h"
#include <camellia/flags.h>
#include <camellia/syscalls.h>
+#include <string.h>
#include <user/lib/esemaphore.h>
#include <user/lib/thread.h>
int global_n;
-
static void basic_thread(void *sem) {
global_n = 10;
esem_signal(sem);
}
-
static void test_basic_thread(void) {
struct evil_sem *sem = esem_new(0);
global_n = 0;
@@ -19,6 +18,28 @@ static void test_basic_thread(void) {
test(global_n == 10);
}
+
+handle_t global_h;
+static void shared_handle(void *sem) {
+ handle_t ends[2];
+ test(_syscall_pipe(ends, 0) >= 0);
+ global_h = ends[0];
+ esem_signal(sem);
+ _syscall_write(ends[1], "Hello!", 7, -1, 0);
+}
+static void test_shared_handle(void) {
+ struct evil_sem *sem = esem_new(0);
+ char buf[16];
+ global_h = -1;
+ thread_create(FORK_NOREAP, shared_handle, sem);
+ esem_wait(sem);
+
+ test(global_h >= 0);
+ test(_syscall_read(global_h, buf, sizeof buf, 0) == 7);
+ test(!strcmp("Hello!", buf));
+}
+
void r_k_threads(void) {
run_test(test_basic_thread);
+ run_test(test_shared_handle);
}
--
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