glib/tests/unix.c - manifest_repos/glib - Git at Google

 /*
  * Copyright (C) 2011 Red Hat, Inc.
  *
  * This work is provided "as is"; redistribution and modification
  * in whole or in part, in any medium, physical or electronic is
  * permitted without restriction.
  *
  * This work is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  *
  * In no event shall the authors or contributors be liable for any
  * direct, indirect, incidental, special, exemplary, or consequential
  * damages (including, but not limited to, procurement of substitute
  * goods or services; loss of use, data, or profits; or business
  * interruption) however caused and on any theory of liability, whether
  * in contract, strict liability, or tort (including negligence or
  * otherwise) arising in any way out of the use of this software, even
  * if advised of the possibility of such damage.
  *
  * Author: Colin Walters <walters@verbum.org>
  */

 #include "config.h"

 #include "glib-unix.h"
 #include <string.h>
 #include <pwd.h>

 static void
 test_pipe (void)
 {
   GError *error = NULL;
   int pipefd[2];
   char buf[1024];
   gssize bytes_read;
   gboolean res;

   res = g_unix_open_pipe (pipefd, FD_CLOEXEC, &error);
   g_assert (res);
   g_assert_no_error (error);

   write (pipefd[1], "hello", sizeof ("hello"));
   memset (buf, 0, sizeof (buf));
   bytes_read = read (pipefd[0], buf, sizeof(buf) - 1);
   g_assert_cmpint (bytes_read, >, 0);
   buf[bytes_read] = '\0';

   close (pipefd[0]);
   close (pipefd[1]);

   g_assert (g_str_has_prefix (buf, "hello"));
 }

 static void
 test_error (void)
 {
   GError *error = NULL;
   gboolean res;

   res = g_unix_set_fd_nonblocking (123456, TRUE, &error);
   g_assert_cmpint (errno, ==, EBADF);
   g_assert (!res);
   g_assert_error (error, G_UNIX_ERROR, 0);
   g_clear_error (&error);
 }

 static void
 test_nonblocking (void)
 {
   GError *error = NULL;
   int pipefd[2];
   gboolean res;
   int flags;

   res = g_unix_open_pipe (pipefd, FD_CLOEXEC, &error);
   g_assert (res);
   g_assert_no_error (error);

   res = g_unix_set_fd_nonblocking (pipefd[0], TRUE, &error);
   g_assert (res);
   g_assert_no_error (error);

   flags = fcntl (pipefd[0], F_GETFL);
   g_assert_cmpint (flags, !=, -1);
   g_assert (flags & O_NONBLOCK);

   res = g_unix_set_fd_nonblocking (pipefd[0], FALSE, &error);
   g_assert (res);
   g_assert_no_error (error);

   flags = fcntl (pipefd[0], F_GETFL);
   g_assert_cmpint (flags, !=, -1);
   g_assert (!(flags & O_NONBLOCK));

   close (pipefd[0]);
   close (pipefd[1]);
 }

 static gboolean sig_received = FALSE;
 static gboolean sig_timeout = FALSE;
 static int sig_counter = 0;

 static gboolean
 on_sig_received (gpointer user_data)
 {
   GMainLoop *loop = user_data;
   g_main_loop_quit (loop);
   sig_received = TRUE;
   sig_counter ++;
   return G_SOURCE_REMOVE;
 }

 static gboolean
 on_sig_timeout (gpointer data)
 {
   GMainLoop *loop = data;
   g_main_loop_quit (loop);
   sig_timeout = TRUE;
   return G_SOURCE_REMOVE;
 }

 static gboolean
 exit_mainloop (gpointer data)
 {
   GMainLoop *loop = data;
   g_main_loop_quit (loop);
   return G_SOURCE_REMOVE;
 }

 static gboolean
 on_sig_received_2 (gpointer data)
 {
   GMainLoop *loop = data;

   sig_counter ++;
   if (sig_counter == 2)
     g_main_loop_quit (loop);
   return G_SOURCE_REMOVE;
 }

 static void
 test_signal (int signum)
 {
   GMainLoop *mainloop;
   int id;

   mainloop = g_main_loop_new (NULL, FALSE);

   sig_received = FALSE;
   sig_counter = 0;
   g_unix_signal_add (signum, on_sig_received, mainloop);
   kill (getpid (), signum);
   g_assert (!sig_received);
   id = g_timeout_add (5000, on_sig_timeout, mainloop);
   g_main_loop_run (mainloop);
   g_assert (sig_received);
   sig_received = FALSE;
   g_source_remove (id);

   /* Ensure we don't get double delivery */
   g_timeout_add (500, exit_mainloop, mainloop);
   g_main_loop_run (mainloop);
   g_assert (!sig_received);

   /* Ensure that two sources for the same signal get it */
   sig_counter = 0;
   g_unix_signal_add (signum, on_sig_received_2, mainloop);
   g_unix_signal_add (signum, on_sig_received_2, mainloop);
   id = g_timeout_add (5000, on_sig_timeout, mainloop);

   kill (getpid (), signum);
   g_main_loop_run (mainloop);
   g_assert_cmpint (sig_counter, ==, 2);
   g_source_remove (id);

   g_main_loop_unref (mainloop);
 }

 static void
 test_sighup (void)
 {
   test_signal (SIGHUP);
 }

 static void
 test_sigterm (void)
 {
   test_signal (SIGTERM);
 }

 static void
 test_sighup_add_remove (void)
 {
   guint id;
   struct sigaction action;

   sig_received = FALSE;
   id = g_unix_signal_add (SIGHUP, on_sig_received, NULL);
   g_source_remove (id);

   sigaction (SIGHUP, NULL, &action);
   g_assert (action.sa_handler == SIG_DFL);
 }

 static gboolean
 nested_idle (gpointer data)
 {
   GMainLoop *nested;
   GMainContext *context;
   GSource *source;

   context = g_main_context_new ();
   nested = g_main_loop_new (context, FALSE);

   source = g_unix_signal_source_new (SIGHUP);
   g_source_set_callback (source, on_sig_received, nested, NULL);
   g_source_attach (source, context);
   g_source_unref (source);

   kill (getpid (), SIGHUP);
   g_main_loop_run (nested);
   g_assert_cmpint (sig_counter, ==, 1);

   g_main_loop_unref (nested);
   g_main_context_unref (context);

   return G_SOURCE_REMOVE;
 }

 static void
 test_sighup_nested (void)
 {
   GMainLoop *mainloop;

   mainloop = g_main_loop_new (NULL, FALSE);

   sig_counter = 0;
   sig_received = FALSE;
   g_unix_signal_add (SIGHUP, on_sig_received, mainloop);
   g_idle_add (nested_idle, mainloop);

   g_main_loop_run (mainloop);
   g_assert_cmpint (sig_counter, ==, 2);

   g_main_loop_unref (mainloop);
 }

 static gboolean
 on_sigwinch_received (gpointer data)
 {
   GMainLoop *loop = (GMainLoop *) data;

   sig_counter ++;

   if (sig_counter == 1)
     kill (getpid (), SIGWINCH);
   else if (sig_counter == 2)
     g_main_loop_quit (loop);
   else if (sig_counter > 2)
     g_assert_not_reached ();

   /* Increase the time window in which an issue could happen. */
   g_usleep (G_USEC_PER_SEC);

   return G_SOURCE_CONTINUE;
 }

 static void
 test_callback_after_signal (void)
 {
   /* Checks that user signal callback is invoked *after* receiving a signal.
    * In other words a new signal is never merged with the one being currently
    * dispatched or whose dispatch had already finished. */

   GMainLoop *mainloop;
   GMainContext *context;
   GSource *source;

   sig_counter = 0;

   context = g_main_context_new ();
   mainloop = g_main_loop_new (context, FALSE);

   source = g_unix_signal_source_new (SIGWINCH);
   g_source_set_callback (source, on_sigwinch_received, mainloop, NULL);
   g_source_attach (source, context);
   g_source_unref (source);

   g_assert_cmpint (sig_counter, ==, 0);
   kill (getpid (), SIGWINCH);
   g_main_loop_run (mainloop);
   g_assert_cmpint (sig_counter, ==, 2);

   g_main_loop_unref (mainloop);
   g_main_context_unref (context);
 }

 static void
 test_get_passwd_entry_root (void)
 {
   struct passwd *pwd;
   GError *local_error = NULL;

   g_test_summary ("Tests that g_unix_get_passwd_entry() works for a "
                   "known-existing username.");

   pwd = g_unix_get_passwd_entry ("root", &local_error);
   g_assert_no_error (local_error);

   g_assert_cmpstr (pwd->pw_name, ==, "root");
   g_assert_cmpuint (pwd->pw_uid, ==, 0);

   g_free (pwd);
 }

 static void
 test_get_passwd_entry_nonexistent (void)
 {
   struct passwd *pwd;
   GError *local_error = NULL;

   g_test_summary ("Tests that g_unix_get_passwd_entry() returns an error for a "
                   "nonexistent username.");

   pwd = g_unix_get_passwd_entry ("thisusernamedoesntexist", &local_error);
   g_assert_error (local_error, G_UNIX_ERROR, 0);
   g_assert_null (pwd);

   g_clear_error (&local_error);
 }

 int
 main (int   argc,
       char *argv[])
 {
   g_test_init (&argc, &argv, NULL);

   g_test_add_func ("/glib-unix/pipe", test_pipe);
   g_test_add_func ("/glib-unix/error", test_error);
   g_test_add_func ("/glib-unix/nonblocking", test_nonblocking);
   g_test_add_func ("/glib-unix/sighup", test_sighup);
   g_test_add_func ("/glib-unix/sigterm", test_sigterm);
   g_test_add_func ("/glib-unix/sighup_again", test_sighup);
   g_test_add_func ("/glib-unix/sighup_add_remove", test_sighup_add_remove);
   g_test_add_func ("/glib-unix/sighup_nested", test_sighup_nested);
   g_test_add_func ("/glib-unix/callback_after_signal", test_callback_after_signal);
   g_test_add_func ("/glib-unix/get-passwd-entry/root", test_get_passwd_entry_root);
   g_test_add_func ("/glib-unix/get-passwd-entry/nonexistent", test_get_passwd_entry_nonexistent);

   return g_test_run();
 }
	/*
	* Copyright (C) 2011 Red Hat, Inc.
	*
	* This work is provided "as is"; redistribution and modification
	* in whole or in part, in any medium, physical or electronic is
	* permitted without restriction.
	*
	* This work is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
	*
	* In no event shall the authors or contributors be liable for any
	* direct, indirect, incidental, special, exemplary, or consequential
	* damages (including, but not limited to, procurement of substitute
	* goods or services; loss of use, data, or profits; or business
	* interruption) however caused and on any theory of liability, whether
	* in contract, strict liability, or tort (including negligence or
	* otherwise) arising in any way out of the use of this software, even
	* if advised of the possibility of such damage.
	*
	* Author: Colin Walters <walters@verbum.org>
	*/

	#include "config.h"

	#include "glib-unix.h"
	#include <string.h>
	#include <pwd.h>

	static void
	test_pipe (void)
	{
	GError *error = NULL;
	int pipefd[2];
	char buf[1024];
	gssize bytes_read;
	gboolean res;

	res = g_unix_open_pipe (pipefd, FD_CLOEXEC, &error);
	g_assert (res);
	g_assert_no_error (error);

	write (pipefd[1], "hello", sizeof ("hello"));
	memset (buf, 0, sizeof (buf));
	bytes_read = read (pipefd[0], buf, sizeof(buf) - 1);
	g_assert_cmpint (bytes_read, >, 0);
	buf[bytes_read] = '\0';

	close (pipefd[0]);
	close (pipefd[1]);

	g_assert (g_str_has_prefix (buf, "hello"));
	}

	static void
	test_error (void)
	{
	GError *error = NULL;
	gboolean res;

	res = g_unix_set_fd_nonblocking (123456, TRUE, &error);
	g_assert_cmpint (errno, ==, EBADF);
	g_assert (!res);
	g_assert_error (error, G_UNIX_ERROR, 0);
	g_clear_error (&error);
	}

	static void
	test_nonblocking (void)
	{
	GError *error = NULL;
	int pipefd[2];
	gboolean res;
	int flags;

	res = g_unix_open_pipe (pipefd, FD_CLOEXEC, &error);
	g_assert (res);
	g_assert_no_error (error);

	res = g_unix_set_fd_nonblocking (pipefd[0], TRUE, &error);
	g_assert (res);
	g_assert_no_error (error);

	flags = fcntl (pipefd[0], F_GETFL);
	g_assert_cmpint (flags, !=, -1);
	g_assert (flags & O_NONBLOCK);

	res = g_unix_set_fd_nonblocking (pipefd[0], FALSE, &error);
	g_assert (res);
	g_assert_no_error (error);

	flags = fcntl (pipefd[0], F_GETFL);
	g_assert_cmpint (flags, !=, -1);
	g_assert (!(flags & O_NONBLOCK));

	close (pipefd[0]);
	close (pipefd[1]);
	}

	static gboolean sig_received = FALSE;
	static gboolean sig_timeout = FALSE;
	static int sig_counter = 0;

	static gboolean
	on_sig_received (gpointer user_data)
	{
	GMainLoop *loop = user_data;
	g_main_loop_quit (loop);
	sig_received = TRUE;
	sig_counter ++;
	return G_SOURCE_REMOVE;
	}

	static gboolean
	on_sig_timeout (gpointer data)
	{
	GMainLoop *loop = data;
	g_main_loop_quit (loop);
	sig_timeout = TRUE;
	return G_SOURCE_REMOVE;
	}

	static gboolean
	exit_mainloop (gpointer data)
	{
	GMainLoop *loop = data;
	g_main_loop_quit (loop);
	return G_SOURCE_REMOVE;
	}

	static gboolean
	on_sig_received_2 (gpointer data)
	{
	GMainLoop *loop = data;

	sig_counter ++;
	if (sig_counter == 2)
	g_main_loop_quit (loop);
	return G_SOURCE_REMOVE;
	}

	static void
	test_signal (int signum)
	{
	GMainLoop *mainloop;
	int id;

	mainloop = g_main_loop_new (NULL, FALSE);

	sig_received = FALSE;
	sig_counter = 0;
	g_unix_signal_add (signum, on_sig_received, mainloop);
	kill (getpid (), signum);
	g_assert (!sig_received);
	id = g_timeout_add (5000, on_sig_timeout, mainloop);
	g_main_loop_run (mainloop);
	g_assert (sig_received);
	sig_received = FALSE;
	g_source_remove (id);

	/* Ensure we don't get double delivery */
	g_timeout_add (500, exit_mainloop, mainloop);
	g_main_loop_run (mainloop);
	g_assert (!sig_received);

	/* Ensure that two sources for the same signal get it */
	sig_counter = 0;
	g_unix_signal_add (signum, on_sig_received_2, mainloop);
	g_unix_signal_add (signum, on_sig_received_2, mainloop);
	id = g_timeout_add (5000, on_sig_timeout, mainloop);

	kill (getpid (), signum);
	g_main_loop_run (mainloop);
	g_assert_cmpint (sig_counter, ==, 2);
	g_source_remove (id);

	g_main_loop_unref (mainloop);
	}

	static void
	test_sighup (void)
	{
	test_signal (SIGHUP);
	}

	static void
	test_sigterm (void)
	{
	test_signal (SIGTERM);
	}

	static void
	test_sighup_add_remove (void)
	{
	guint id;
	struct sigaction action;

	sig_received = FALSE;
	id = g_unix_signal_add (SIGHUP, on_sig_received, NULL);
	g_source_remove (id);

	sigaction (SIGHUP, NULL, &action);
	g_assert (action.sa_handler == SIG_DFL);
	}

	static gboolean
	nested_idle (gpointer data)
	{
	GMainLoop *nested;
	GMainContext *context;
	GSource *source;

	context = g_main_context_new ();
	nested = g_main_loop_new (context, FALSE);

	source = g_unix_signal_source_new (SIGHUP);
	g_source_set_callback (source, on_sig_received, nested, NULL);
	g_source_attach (source, context);
	g_source_unref (source);

	kill (getpid (), SIGHUP);
	g_main_loop_run (nested);
	g_assert_cmpint (sig_counter, ==, 1);

	g_main_loop_unref (nested);
	g_main_context_unref (context);

	return G_SOURCE_REMOVE;
	}

	static void
	test_sighup_nested (void)
	{
	GMainLoop *mainloop;

	mainloop = g_main_loop_new (NULL, FALSE);

	sig_counter = 0;
	sig_received = FALSE;
	g_unix_signal_add (SIGHUP, on_sig_received, mainloop);
	g_idle_add (nested_idle, mainloop);

	g_main_loop_run (mainloop);
	g_assert_cmpint (sig_counter, ==, 2);

	g_main_loop_unref (mainloop);
	}

	static gboolean
	on_sigwinch_received (gpointer data)
	{
	GMainLoop loop = (GMainLoop ) data;

	sig_counter ++;

	if (sig_counter == 1)
	kill (getpid (), SIGWINCH);
	else if (sig_counter == 2)
	g_main_loop_quit (loop);
	else if (sig_counter > 2)
	g_assert_not_reached ();

	/* Increase the time window in which an issue could happen. */
	g_usleep (G_USEC_PER_SEC);

	return G_SOURCE_CONTINUE;
	}

	static void
	test_callback_after_signal (void)
	{
	/* Checks that user signal callback is invoked after receiving a signal.
	* In other words a new signal is never merged with the one being currently
	* dispatched or whose dispatch had already finished. */

	GMainLoop *mainloop;
	GMainContext *context;
	GSource *source;

	sig_counter = 0;

	context = g_main_context_new ();
	mainloop = g_main_loop_new (context, FALSE);

	source = g_unix_signal_source_new (SIGWINCH);
	g_source_set_callback (source, on_sigwinch_received, mainloop, NULL);
	g_source_attach (source, context);
	g_source_unref (source);

	g_assert_cmpint (sig_counter, ==, 0);
	kill (getpid (), SIGWINCH);
	g_main_loop_run (mainloop);
	g_assert_cmpint (sig_counter, ==, 2);

	g_main_loop_unref (mainloop);
	g_main_context_unref (context);
	}

	static void
	test_get_passwd_entry_root (void)
	{
	struct passwd *pwd;
	GError *local_error = NULL;

	g_test_summary ("Tests that g_unix_get_passwd_entry() works for a "
	"known-existing username.");

	pwd = g_unix_get_passwd_entry ("root", &local_error);
	g_assert_no_error (local_error);

	g_assert_cmpstr (pwd->pw_name, ==, "root");
	g_assert_cmpuint (pwd->pw_uid, ==, 0);

	g_free (pwd);
	}

	static void
	test_get_passwd_entry_nonexistent (void)
	{
	struct passwd *pwd;
	GError *local_error = NULL;

	g_test_summary ("Tests that g_unix_get_passwd_entry() returns an error for a "
	"nonexistent username.");

	pwd = g_unix_get_passwd_entry ("thisusernamedoesntexist", &local_error);
	g_assert_error (local_error, G_UNIX_ERROR, 0);
	g_assert_null (pwd);

	g_clear_error (&local_error);
	}

	int
	main (int argc,
	char *argv[])
	{
	g_test_init (&argc, &argv, NULL);

	g_test_add_func ("/glib-unix/pipe", test_pipe);
	g_test_add_func ("/glib-unix/error", test_error);
	g_test_add_func ("/glib-unix/nonblocking", test_nonblocking);
	g_test_add_func ("/glib-unix/sighup", test_sighup);
	g_test_add_func ("/glib-unix/sigterm", test_sigterm);
	g_test_add_func ("/glib-unix/sighup_again", test_sighup);
	g_test_add_func ("/glib-unix/sighup_add_remove", test_sighup_add_remove);
	g_test_add_func ("/glib-unix/sighup_nested", test_sighup_nested);
	g_test_add_func ("/glib-unix/callback_after_signal", test_callback_after_signal);
	g_test_add_func ("/glib-unix/get-passwd-entry/root", test_get_passwd_entry_root);
	g_test_add_func ("/glib-unix/get-passwd-entry/nonexistent", test_get_passwd_entry_nonexistent);

	return g_test_run();
	}