Various fixes for OS X

This patch addresses compilation errors on OS X. It's been a while, so
there's quite a few things.

 * Fixed __attribute__ decls in route.h to be portable.
 * Fixed htonll and ntohll to work when they are defined as macros.
 * Replaced sem_t usage with our ast_sem wrapper.
 * Added ast_sem_timedwait to our ast_sem wrapper.
 * Fixed some GCC 4.9 warnings using sig*set() functions.
 * Fixed some format strings for portability.
 * Fixed compilation issues with res_timing_kqueue (although tests still fail
   on OS X).
 * Fixed menuconfig /sbin/launchd detection, which disables res_timing_kqueue
   on OS X).

ASTERISK-24539 #close
Reported by: George Joseph

ASTERISK-24544 #close
Reported by: George Joseph

Review: https://reviewboard.asterisk.org/r/4327/
........

Merged revisions 431092 from http://svn.asterisk.org/svn/asterisk/branches/13


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@431093 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/sip/include/route.h

@@ -98,7 +98,7 @@ void sip_route_dump(const struct sip_route *route);
  * \retval NULL on failure
  */
 struct ast_str *sip_route_list(const struct sip_route *route, int formatcli, int skip)
-		__attribute_malloc__ __attribute_warn_unused_result__;
+	__attribute__((__malloc__)) __attribute__((__warn_unused_result__));
 
 /*!
  * \brief Check if the route is strict

configure.ac

@@ -660,7 +660,25 @@ AC_FUNC_STRNLEN
 AC_FUNC_STRTOD
 AC_FUNC_UTIME_NULL
 AC_FUNC_VPRINTF
-AC_CHECK_FUNCS([asprintf atexit closefrom dup2 eaccess endpwent euidaccess ffsll ftruncate getcwd gethostbyname gethostname getloadavg gettimeofday glob htonll ioperm inet_ntoa isascii memchr memmove memset mkdir mkdtemp munmap ntohll newlocale ppoll putenv re_comp regcomp select setenv socket strcasecmp strcasestr strchr strcspn strdup strerror strlcat strlcpy strncasecmp strndup strnlen strrchr strsep strspn strstr strtod strtol strtold strtoq unsetenv utime vasprintf getpeereid sysctl swapctl])
+AC_CHECK_FUNCS([asprintf atexit closefrom dup2 eaccess endpwent euidaccess ffsll ftruncate getcwd gethostbyname gethostname getloadavg gettimeofday glob ioperm inet_ntoa isascii memchr memmove memset mkdir mkdtemp munmap newlocale ppoll putenv re_comp regcomp select setenv socket strcasecmp strcasestr strchr strcspn strdup strerror strlcat strlcpy strncasecmp strndup strnlen strrchr strsep strspn strstr strtod strtol strtold strtoq unsetenv utime vasprintf getpeereid sysctl swapctl])
+
+AC_MSG_CHECKING(for htonll)
+AC_LINK_IFELSE(
+	[AC_LANG_PROGRAM([#include <arpa/inet.h>],
+		[return htonll(0);])],
+	AC_MSG_RESULT(yes)
+	AC_DEFINE(HAVE_HTONLL, 1, [Define to 1 if arpa/inet.h includes a htonll definition.]),
+	AC_MSG_RESULT(no)
+)
+
+AC_MSG_CHECKING(for ntohll)
+AC_LINK_IFELSE(
+	[AC_LANG_PROGRAM([#include <arpa/inet.h>],
+		[return ntohll(0);])],
+	AC_MSG_RESULT(yes)
+	AC_DEFINE(HAVE_NTOHLL, 1, [Define to 1 if arpa/inet.h includes a ntohll definition.]),
+	AC_MSG_RESULT(no)
+)
 
 # NOTE: we use AC_CHECK_LIB to get -lm into the arguments for later checks,
 # so that AC_CHECK_FUNCS can detect functions in that library.
@@ -2432,10 +2450,9 @@ AST_EXT_LIB_CHECK([X11], [X11], [XOpenDisplay], [X11/Xlib.h],, [-I/usr/X11R6/inc
 PBX_LAUNCHD=0
 if test "${cross_compiling}" = "no";
 then
-  AC_CHECK_FILE(/sbin/launchd, AC_DEFINE([HAVE_SBIN_LAUNCHD], 1, [Define to 1 if your system has /sbin/launchd.]))
+  AC_CHECK_FILE(/sbin/launchd,
-  if test "${HAVE_SBIN_LAUNCHD}" = 1; then
+    [PBX_LAUNCHD=1]
-    PBX_LAUNCHD=1
+    AC_DEFINE([HAVE_SBIN_LAUNCHD], 1, [Define to 1 if your system has /sbin/launchd.]))
-  fi
 fi
 AC_SUBST(PBX_LAUNCHD)
 

funcs/func_presencestate.c

@@ -41,7 +41,7 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "asterisk/app.h"
 #ifdef TEST_FRAMEWORK
 #include "asterisk/test.h"
-#include <semaphore.h>
+#include "asterisk/sem.h"
 #endif
 
 /*** DOCUMENTATION
@@ -664,7 +664,7 @@ AST_TEST_DEFINE(test_invalid_parse_data)
 struct test_cb_data {
 	struct ast_presence_state_message *presence_state;
 	/* That's right. I'm using a semaphore */
-	sem_t sem;
+	struct ast_sem sem;
 };
 
 static struct test_cb_data *test_cb_data_alloc(void)
@@ -675,7 +675,7 @@ static struct test_cb_data *test_cb_data_alloc(void)
 		return NULL;
 	}
 
-	if (sem_init(&cb_data->sem, 0, 0)) {
+	if (ast_sem_init(&cb_data->sem, 0, 0)) {
 		ast_free(cb_data);
 		return NULL;
 	}
@@ -686,7 +686,7 @@ static struct test_cb_data *test_cb_data_alloc(void)
 static void test_cb_data_destroy(struct test_cb_data *cb_data)
 {
 	ao2_cleanup(cb_data->presence_state);
-	sem_destroy(&cb_data->sem);
+	ast_sem_destroy(&cb_data->sem);
 	ast_free(cb_data);
 }
 
@@ -699,7 +699,7 @@ static void test_cb(void *userdata, struct stasis_subscription *sub, struct stas
 	cb_data->presence_state = stasis_message_data(msg);
 	ao2_ref(cb_data->presence_state, +1);
 
-	sem_post(&cb_data->sem);
+	ast_sem_post(&cb_data->sem);
 }
 
 static enum ast_test_result_state presence_change_common(struct ast_test *test,
@@ -727,7 +727,7 @@ static enum ast_test_result_state presence_change_common(struct ast_test *test,
 		return AST_TEST_FAIL;
 	}
 
-	sem_wait(&cb_data->sem);
+	ast_sem_wait(&cb_data->sem);
 
 	ast_copy_string(out_state, ast_presence_state2str(cb_data->presence_state->state), out_state_size);
 	ast_copy_string(out_subtype, cb_data->presence_state->subtype, out_subtype_size);

include/asterisk/autoconfig.h.in

@@ -324,7 +324,7 @@
 /* Define to 1 if you have the Hoard Memory Allocator library. */
 #undef HAVE_HOARD
 
-/* Define to 1 if you have the `htonll' function. */
+/* Define to 1 if arpa/inet.h includes a htonll definition. */
 #undef HAVE_HTONLL
 
 /* Define to 1 if you have the iCal library. */
@@ -524,7 +524,7 @@
 /* Define to 1 if you have the newt library. */
 #undef HAVE_NEWT
 
-/* Define to 1 if you have the `ntohll' function. */
+/* Define to 1 if arpa/inet.h includes a ntohll definition. */
 #undef HAVE_NTOHLL
 
 /* Define to 1 if your C library can safely print NULL to string formats. */
@@ -1299,6 +1299,11 @@
 /* Define to 1 if running on Darwin. */
 #undef _DARWIN_UNLIMITED_SELECT
 
+/* Enable large inode numbers on Mac OS X 10.5.  */
+#ifndef _DARWIN_USE_64_BIT_INODE
+# define _DARWIN_USE_64_BIT_INODE 1
+#endif
+
 /* Number of bits in a file offset, on hosts where this is settable. */
 #undef _FILE_OFFSET_BITS
 

include/asterisk/sem.h

@@ -59,6 +59,11 @@ static force_inline int ast_sem_wait(struct ast_sem *sem)
 	return sem_wait(&sem->real_sem);
 }
 
+static force_inline int ast_sem_timedwait(struct ast_sem *sem, const struct timespec *abs_timeout)
+{
+	return sem_timedwait(&sem->real_sem, abs_timeout);
+}
+
 static force_inline int ast_sem_getvalue(struct ast_sem *sem, int *sval)
 {
 	return sem_getvalue(&sem->real_sem, sval);
@@ -136,6 +141,20 @@ int ast_sem_post(struct ast_sem *sem);
  */
 int ast_sem_wait(struct ast_sem *sem);
 
+/*!
+ * \brief Decrements the semaphore, waiting until abs_timeout.
+ *
+ * If the semaphore's current value is zero, this function blocks until another
+ * thread posts (ast_sem_post()) to the semaphore (or is interrupted by a signal
+ * handler, which sets errno to EINTR).
+ *
+ * \param sem Semaphore to decrement.
+ *
+ * \return 0 on success.
+ * \return -1 on error, errno set to indicate error.
+ */
+int ast_sem_timedwait(struct ast_sem *sem, const struct timespec *abs_timeout);
+
 /*!
  * \brief Gets the current value of the semaphore.
  *

main/app.c

@@ -2911,7 +2911,9 @@ int ast_safe_fork(int stop_reaper)
 		ast_replace_sigchld();
 	}
 
-	sigfillset(&signal_set);
+	/* GCC 4.9 gives a bogus "right-hand operand of comma expression has
+	 * no effect" warning */
+	(void) sigfillset(&signal_set);
 	pthread_sigmask(SIG_BLOCK, &signal_set, &old_set);
 
 	pid = fork();

main/asterisk.c

@@ -4366,12 +4366,14 @@ int main(int argc, char *argv[])
 	}
 
 	ast_makesocket();
-	sigemptyset(&sigs);
+	/* GCC 4.9 gives a bogus "right-hand operand of comma expression has
-	sigaddset(&sigs, SIGHUP);
+	 * no effect" warning */
-	sigaddset(&sigs, SIGTERM);
+	(void) sigemptyset(&sigs);
-	sigaddset(&sigs, SIGINT);
+	(void) sigaddset(&sigs, SIGHUP);
-	sigaddset(&sigs, SIGPIPE);
+	(void) sigaddset(&sigs, SIGTERM);
-	sigaddset(&sigs, SIGWINCH);
+	(void) sigaddset(&sigs, SIGINT);
+	(void) sigaddset(&sigs, SIGPIPE);
+	(void) sigaddset(&sigs, SIGWINCH);
 	pthread_sigmask(SIG_BLOCK, &sigs, NULL);
 	sigaction(SIGURG, &urg_handler, NULL);
 	signal(SIGINT, __quit_handler);

main/bridge_channel.c

@@ -35,7 +35,6 @@
 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 
 #include <signal.h>
-#include <semaphore.h>
 
 #include "asterisk/heap.h"
 #include "asterisk/astobj2.h"
@@ -56,6 +55,7 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "asterisk/parking.h"
 #include "asterisk/causes.h"
 #include "asterisk/test.h"
+#include "asterisk/sem.h"
 
 /*!
  * \brief Used to queue an action frame onto a bridge channel and write an action frame into a bridge.
@@ -101,7 +101,7 @@ struct bridge_sync {
 	/*! Unique ID of this synchronization object. Corresponds with ID in synchronous frame payload */
 	unsigned int id;
 	/*! Semaphore used for synchronization */
-	sem_t sem;
+	struct ast_sem sem;
 	/*! Pointer to next entry in the list */
 	AST_LIST_ENTRY(bridge_sync) list;
 };
@@ -124,7 +124,7 @@ static void bridge_sync_init(struct bridge_sync *sync_struct, unsigned int id)
 {
 	memset(sync_struct, 0, sizeof(*sync_struct));
 	sync_struct->id = id;
-	sem_init(&sync_struct->sem, 0, 0);
+	ast_sem_init(&sync_struct->sem, 0, 0);
 
 	AST_RWLIST_WRLOCK(&sync_structs);
 	AST_RWLIST_INSERT_TAIL(&sync_structs, sync_struct, list);
@@ -157,7 +157,7 @@ static void bridge_sync_cleanup(struct bridge_sync *sync_struct)
 	AST_LIST_TRAVERSE_SAFE_END;
 	AST_RWLIST_UNLOCK(&sync_structs);
 
-	sem_destroy(&sync_struct->sem);
+	ast_sem_destroy(&sync_struct->sem);
 }
 
 /*!
@@ -189,7 +189,7 @@ static void bridge_sync_wait(struct bridge_sync *sync_struct)
 		.tv_nsec = timeout_val.tv_usec * 1000,
 	};
 
-	sem_timedwait(&sync_struct->sem, &timeout_spec);
+	ast_sem_timedwait(&sync_struct->sem, &timeout_spec);
 }
 
 /*!
@@ -204,7 +204,7 @@ static void bridge_sync_wait(struct bridge_sync *sync_struct)
  */
 static void bridge_sync_signal(struct bridge_sync *sync_struct)
 {
-	sem_post(&sync_struct->sem);
+	ast_sem_post(&sync_struct->sem);
 }
 
 void ast_bridge_channel_lock_bridge(struct ast_bridge_channel *bridge_channel)

main/rtp_engine.c

@@ -1948,7 +1948,7 @@ static struct ast_json *rtcp_report_to_json(struct stasis_message *msg,
 		char sec[32];
 		char usec[32];
 		snprintf(sec, sizeof(sec), "%lu", payload->report->sender_information.ntp_timestamp.tv_sec);
-		snprintf(usec, sizeof(usec), "%lu", payload->report->sender_information.ntp_timestamp.tv_usec);
+		snprintf(usec, sizeof(usec), "%lu", (unsigned long)payload->report->sender_information.ntp_timestamp.tv_usec);
 		json_rtcp_sender_info = ast_json_pack("{s: s, s: s, s: i, s: i, s: i}",
 				"ntp_timestamp_sec", sec,
 				"ntp_timestamp_usec", usec,

main/sem.c

@@ -85,6 +85,7 @@ int ast_sem_post(struct ast_sem *sem)
 
 int ast_sem_wait(struct ast_sem *sem)
 {
+	int res;
 	SCOPED_MUTEX(lock, &sem->mutex);
 
 	ast_assert(sem->count >= 0);
@@ -92,7 +93,37 @@ int ast_sem_wait(struct ast_sem *sem)
 	/* Wait for a non-zero count */
 	++sem->waiters;
 	while (sem->count == 0) {
-		ast_cond_wait(&sem->cond, &sem->mutex);
+		res = ast_cond_wait(&sem->cond, &sem->mutex);
+		/* Give up on error */
+		if (res != 0) {
+			--sem->waiters;
+			return res;
+		}
+	}
+	--sem->waiters;
+
+	/* Take it! */
+	--sem->count;
+
+	return 0;
+}
+
+int ast_sem_timedwait(struct ast_sem *sem, const struct timespec *abs_timeout)
+{
+	int res;
+	SCOPED_MUTEX(lock, &sem->mutex);
+
+	ast_assert(sem->count >= 0);
+
+	/* Wait for a non-zero count */
+	++sem->waiters;
+	while (sem->count == 0) {
+		res = ast_cond_timedwait(&sem->cond, &sem->mutex, abs_timeout);
+		/* Give up on error */
+		if (res != 0) {
+			--sem->waiters;
+			return res;
+		}
 	}
 	--sem->waiters;
 

res/res_timing_kqueue.c

@@ -91,12 +91,12 @@ static void *kqueue_timer_open(void)
 
 	if (!(timer = ao2_alloc(sizeof(*timer), timer_destroy))) {
 		ast_log(LOG_ERROR, "Could not allocate memory for kqueue_timer structure\n");
-		return -1;
+		return NULL;
 	}
 	if ((timer->handle = kqueue()) < 0) {
 		ast_log(LOG_ERROR, "Failed to create kqueue timer: %s\n", strerror(errno));
 		ao2_ref(timer, -1);
-		return -1;
+		return NULL;
 	}
 
 	return timer;
@@ -201,6 +201,8 @@ static enum ast_timer_event kqueue_timer_get_event(void *data)
 	if (timer->unacked == 0) {
 		if (kevent(timer->handle, NULL, 0, &kev, 1, &sixty_seconds) > 0) {
 			timer->unacked += kev.data;
+		} else {
+			perror("kevent");
 		}
 	}
 
@@ -250,7 +252,7 @@ AST_TEST_DEFINE(test_kqueue_timing)
 	}
 
 	do {
-		pfd.fd = ast_timer_fd(kt);
+		pfd.fd = kqueue_timer_fd(kt);
 		if (kqueue_timer_set_rate(kt, 1000)) {
 			ast_test_status_update(test, "Cannot set timer rate to 1000/s\n");
 			res = AST_TEST_FAIL;
@@ -271,13 +273,12 @@ AST_TEST_DEFINE(test_kqueue_timing)
 			res = AST_TEST_FAIL;
 			break;
 		}
-#if 0
 		if (kt->unacked == 0) {
 			ast_test_status_update(test, "Unacked events is 0, but there should be at least 1.\n");
 			res = AST_TEST_FAIL;
 			break;
 		}
-#endif
+
 		kqueue_timer_enable_continuous(kt);
 		start = ast_tvnow();
 		for (i = 0; i < 100; i++) {