[libc] Fix test includes

Author: tszhin-swe

libc/test/src/sys/time/CMakeLists.txt

@@ -31,6 +31,7 @@ add_libc_unittest(
     libc.src.__support.common
     libc.src.errno.errno
     libc.test.UnitTest.ErrnoSetterMatcher
+    libc.include.signal
 )
 
 add_libc_unittest(

libc/test/src/sys/time/getitimer_test.cpp

@@ -7,10 +7,11 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "src/sys/time/getitimer.h"
 #include "hdr/types/struct_itimerval.h"
+#include "src/sys/time/getitimer.h"
 #include "test/UnitTest/ErrnoSetterMatcher.h"
 #include "test/UnitTest/Test.h"
+#include <sys/time.h>
 
 using namespace LIBC_NAMESPACE::testing::ErrnoSetterMatcher;
 
@@ -21,7 +22,7 @@ TEST(LlvmLibcSysTimeGetitimerTest, SmokeTest) {
   timer.it_interval.tv_sec = -1;
   timer.it_interval.tv_usec = -1;
 
-  ASSERT_THAT(LIBC_NAMESPACE::getitimer(ITIMER_REAL, &timer),
+  ASSERT_THAT(LIBC_NAMESPACE::getitimer(0, &timer),
               returns(EQ(0)).with_errno(EQ(0)));
 
   ASSERT_TRUE(timer.it_value.tv_sec == 0);

libc/test/src/sys/time/setitimer_test.cpp

@@ -7,23 +7,21 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "src/signal/signal.h"
 #include "hdr/types/struct_itimerval.h"
 #include "src/sys/time/setitimer.h"
 #include "test/UnitTest/ErrnoSetterMatcher.h"
 #include "test/UnitTest/Test.h"
 
-#include <atomic>
 #include <signal.h>
 
 using namespace LIBC_NAMESPACE::testing::ErrnoSetterMatcher;
 
-static std::atomic<bool> timer_fired(false);
+static bool timer_fired(false);
 
-extern "C" void handle_sigalrm(int) { timer_fired.store(true); }
+extern "C" void handle_sigalrm(int) { timer_fired = true; }
 
 TEST(LlvmLibcSysTimeSetitimerTest, SmokeTest) {
-  errno = 0;
+  LIBC_NAMESPACE::libc_errno = 0;
   struct sigaction sa;
   sa.sa_handler = handle_sigalrm;
   sigemptyset(&sa.sa_mask);
@@ -36,13 +34,13 @@ TEST(LlvmLibcSysTimeSetitimerTest, SmokeTest) {
   timer.it_interval.tv_sec = 0;
   timer.it_interval.tv_usec = 0; // One-shot timer
 
-  ASSERT_THAT(LIBC_NAMESPACE::setitimer(ITIMER_REAL, &timer, nullptr),
+  ASSERT_THAT(LIBC_NAMESPACE::setitimer(0, &timer, nullptr),
               returns(EQ(0)).with_errno(EQ(0)));
 
   while (true) {
-    if (timer_fired.load())
+    if (timer_fired)
       break;
   }
 
-  ASSERT_TRUE(timer_fired.load());
+  ASSERT_TRUE(timer_fired);
 }