test-eintr-handling.c

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 * furnished to do so, subject to the following conditions:
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 * The above copyright notice and this permission notice shall be included in
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#include "uv.h"
#include "task.h"
 
#ifdef _WIN32
 
TEST_IMPL(eintr_handling) {
  RETURN_SKIP("Test not implemented on Windows.");
}
 
#else  /* !_WIN32 */
 
#include <string.h>
#include <unistd.h>
 
static uv_loop_t* loop;
static uv_fs_t read_req;
static uv_buf_t iov;
 
static char buf[32];
static char test_buf[] = "test-buffer\n";
int pipe_fds[2];
 
struct thread_ctx {
  uv_barrier_t barrier;
  int fd;
};
 
static void thread_main(void* arg) {
  int nwritten;
  ASSERT(0 == kill(getpid(), SIGUSR1));
 
  do
    nwritten = write(pipe_fds[1], test_buf, sizeof(test_buf));
  while (nwritten == -1 && errno == EINTR);
 
  ASSERT(nwritten == sizeof(test_buf));
}
 
static void sig_func(uv_signal_t* handle, int signum) {
  uv_signal_stop(handle);
}
 
TEST_IMPL(eintr_handling) {
  struct thread_ctx ctx;
  uv_thread_t thread;
  uv_signal_t signal;
  int nread;
 
  iov = uv_buf_init(buf, sizeof(buf));
  loop = uv_default_loop();
 
  ASSERT(0 == uv_signal_init(loop, &signal));
  ASSERT(0 == uv_signal_start(&signal, sig_func, SIGUSR1));
 
  ASSERT(0 == pipe(pipe_fds));
  ASSERT(0 == uv_thread_create(&thread, thread_main, &ctx));
 
  nread = uv_fs_read(loop, &read_req, pipe_fds[0], &iov, 1, -1, NULL);
 
  ASSERT(nread == sizeof(test_buf));
  ASSERT(0 == strcmp(buf, test_buf));
 
  ASSERT(0 == uv_run(loop, UV_RUN_DEFAULT));
 
  ASSERT(0 == close(pipe_fds[0]));
  ASSERT(0 == close(pipe_fds[1]));
  uv_close((uv_handle_t*) &signal, NULL);
 
  MAKE_VALGRIND_HAPPY();
  return 0;
}
 
#endif  /* !_WIN32 */