MacOS Compatibility:

- pthread barriers implementation.
- clock time.h
- libiconv link
- Support for dylib loading
- CMake project fixes
QTEditor parent project file.

.gitignore

@@ -10,3 +10,4 @@ sdrangelove.supp
 .settings/
 *.cs
 *.pro.user
+.idea/*

CMakeLists.txt

@@ -1,6 +1,9 @@
 cmake_minimum_required(VERSION 3.1.0)
 cmake_policy(SET CMP0043 OLD)
 
+# QT Framework
+set(CMAKE_PREFIX_PATH "/Applications/Qt/5.7/clang_64/lib/cmake")
+
 # use, i.e. don't skip the full RPATH for the build tree
 set(CMAKE_SKIP_BUILD_RPATH  FALSE)
 
@@ -56,6 +59,13 @@ IF(CMAKE_SYSTEM_PROCESSOR MATCHES "x86_64|AMD64|x86")
  SET(USE_SIMD "SSE2" CACHE STRING "Use SIMD instructions")
 ENDIF()
 
+# MacOS Compatibility
+if(APPLE)
+	find_package(ICONV)
+
+	set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -stdlib=libc++ -lc++abi")
+
+endif(APPLE)
 ##############################################################################
 
 #include(${QT_USE_FILE})

apple_compat.c

@@ -0,0 +1,77 @@
+/*
+ * APPLE Compatibility
+ */
+
+#ifdef __APPLE__
+
+#include <pthread.h>
+#include <errno.h>
+
+#include "apple_compat.h"
+
+int pthread_barrier_init(pthread_barrier_t *barrier, const pthread_barrierattr_t *attr, unsigned int count)
+{
+    if(count == 0)
+    {
+        errno = EINVAL;
+        return -1;
+    }
+    if(pthread_mutex_init(&barrier->mutex, 0) < 0)
+    {
+        return -1;
+    }
+    if(pthread_cond_init(&barrier->cond, 0) < 0)
+    {
+        pthread_mutex_destroy(&barrier->mutex);
+        return -1;
+    }
+    barrier->tripCount = count;
+    barrier->count = 0;
+
+    return 0;
+}
+
+int pthread_barrier_destroy(pthread_barrier_t *barrier)
+{
+    pthread_cond_destroy(&barrier->cond);
+    pthread_mutex_destroy(&barrier->mutex);
+    return 0;
+}
+
+int pthread_barrier_wait(pthread_barrier_t *barrier)
+{
+    pthread_mutex_lock(&barrier->mutex);
+    ++(barrier->count);
+    if(barrier->count >= barrier->tripCount)
+    {
+        barrier->count = 0;
+        pthread_cond_broadcast(&barrier->cond);
+        pthread_mutex_unlock(&barrier->mutex);
+        return 1;
+    }
+    else
+    {
+        pthread_cond_wait(&barrier->cond, &(barrier->mutex));
+        pthread_mutex_unlock(&barrier->mutex);
+        return 0;
+    }
+}
+
+/**
+ * Missing POSIX RealTime/Monotonic Clock
+ */
+#include <mach/mach_time.h>
+
+int clock_gettime(int clk_id, struct timespec *t) {
+    mach_timebase_info_data_t timebase;
+    mach_timebase_info(&timebase);
+    uint64_t time;
+    time = mach_absolute_time();
+    double nseconds = ((double)time * (double)timebase.numer)/((double)timebase.denom);
+    double seconds = ((double)time * (double)timebase.numer)/((double)timebase.denom * 1e9);
+    t->tv_sec = seconds;
+    t->tv_nsec = nseconds;
+    return 0;
+}
+
+#endif // APPLE Compatibility

apple_compat.h

@@ -0,0 +1,45 @@
+/*
+ * APPLE Compatibility
+ */
+
+#ifdef __APPLE__
+
+/**
+ *  Missing POSIX Thread Barriers implementation
+ */
+#ifndef PTHREAD_BARRIER_H_
+#define PTHREAD_BARRIER_H_
+
+#include <pthread.h>
+#include <errno.h>
+
+typedef int pthread_barrierattr_t;
+typedef struct
+{
+    pthread_mutex_t mutex;
+    pthread_cond_t cond;
+    int count;
+    int tripCount;
+} pthread_barrier_t;
+
+
+int pthread_barrier_init(pthread_barrier_t *barrier, const pthread_barrierattr_t *attr, unsigned int count);
+
+int pthread_barrier_destroy(pthread_barrier_t *barrier);
+
+int pthread_barrier_wait(pthread_barrier_t *barrier);
+
+#endif // PTHREAD_BARRIER_H_
+
+// <time.h>
+#ifndef CLOCK_REALTIME
+#  define CLOCK_REALTIME 0
+#endif
+
+#ifndef CLOCK_MONOTONIC
+#  define CLOCK_MONOTONIC 0
+#endif
+
+int clock_gettime(int clk_id, struct timespec *t);
+
+#endif // APPLE Compatibility

cmake/Modules/FindICONV.cmake

@@ -0,0 +1,73 @@
+set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS true)
+include(CheckFunctionExists)
+if (ICONV_INCLUDE_DIR)
+    # Already in cache, be silent
+    set(ICONV_FIND_QUIETLY TRUE)
+endif()
+
+find_path(ICONV_INCLUDE_DIR iconv.h
+        /usr/include
+        /usr/local/include
+        /opt/local/include)
+
+set(POTENTIAL_ICONV_LIBS iconv libiconv libiconv2)
+
+find_library(ICONV_LIBRARY NAMES ${POTENTIAL_ICONV_LIBS}
+        PATHS /usr/lib /usr/local/lib /opt/local/lib)
+
+if(WIN32)
+    set(ICONV_DLL_NAMES iconv.dll  libiconv.dll libiconv2.dll)
+    find_file(ICONV_DLL
+            NAMES ${ICONV_DLL_NAMES}
+            PATHS ENV PATH
+            NO_DEFAULT_PATH)
+    find_file(ICONV_DLL_HELP
+            NAMES ${ICONV_DLL_NAMES}
+            PATHS ENV PATH
+            ${ICONV_INCLUDE_DIR}/../bin)
+    if(ICONV_FIND_REQUIRED)
+        if(NOT ICONV_DLL AND NOT ICONV_DLL_HELP)
+            message(FATAL_ERROR "Could not find iconv.dll, please add correct your PATH environment variable")
+        endif()
+        if(NOT ICONV_DLL AND ICONV_DLL_HELP)
+            get_filename_component(ICONV_DLL_HELP ${ICONV_DLL_HELP} PATH)
+            message(STATUS)
+            message(STATUS "Could not find iconv.dll in standard search path, please add ")
+            message(STATUS "${ICONV_DLL_HELP}")
+            message(STATUS "to your PATH environment variable.")
+            message(STATUS)
+            message(FATAL_ERROR "exit cmake")
+        endif()
+    endif()
+    if(ICONV_INCLUDE_DIR AND ICONV_LIBRARY AND ICONV_DLL)
+        set(ICONV_FOUND TRUE)
+    endif()
+else()
+    check_function_exists(iconv HAVE_ICONV_IN_LIBC)
+    if(ICONV_INCLUDE_DIR AND HAVE_ICONV_IN_LIBC)
+        set(ICONV_FOUND TRUE)
+        set(ICONV_LIBRARY  CACHE TYPE STRING FORCE)
+    endif()
+    if(ICONV_INCLUDE_DIR AND ICONV_LIBRARY)
+        set(ICONV_FOUND TRUE)
+    endif()
+endif()
+
+
+
+if(ICONV_FOUND)
+    if(NOT ICONV_FIND_QUIETLY)
+        message(STATUS "Found iconv library: ${ICONV_LIBRARY}")
+        #message(STATUS "Found iconv   dll  : ${ICONV_DLL}")
+    endif()
+else()
+    if(ICONV_FIND_REQUIRED)
+        message(STATUS "Looked for iconv library named ${POTENTIAL_ICONV_LIBS}.")
+        message(STATUS "Found no acceptable iconv library. This is fatal.")
+        message(STATUS "iconv header: ${ICONV_INCLUDE_DIR}")
+        message(STATUS "iconv lib   : ${ICONV_LIBRARY}")
+        message(FATAL_ERROR "Could NOT find iconv library")
+    endif()
+endif()
+
+mark_as_advanced(ICONV_LIBRARY ICONV_INCLUDE_DIR)

fcdhid/CMakeLists.txt

@@ -1,11 +1,13 @@
 project(fcdhid)
 
 set(fcdhid_SOURCES
+    ../apple_compat.c
 	hid-libusb.c
 	fcdhid.c
 )
 
 set(fcdhid_HEADERS
+    ../apple_compat.h
 	fcdhid.h
 	hid-libusb.h
 	hidapi.h
@@ -25,6 +27,7 @@ add_library(fcdhid SHARED
 
 target_link_libraries(fcdhid
 	${LIBUSB_LIBRARIES}
+    ${ICONV_LIBRARY}
 )
 
 install(TARGETS fcdhid DESTINATION lib)

fcdhid/hid-libusb.c

@@ -65,6 +65,15 @@ extern "C" {
 #define DETACH_KERNEL_DRIVER
 #endif
 
+/**
+ * MacOS does not implement POSIX Thread Barriers
+ */
+#ifdef __APPLE__
+
+#include "../apple_compat.h"
+
+#endif
+
 /* Uncomment to enable the retrieval of Usage and Usage Page in
 hid_enumerate(). Warning, on platforms different from FreeBSD
 this is very invasive as it requires the detach

sdrangel.macos.pro

@@ -0,0 +1,30 @@
+#--------------------------------------------------------
+#
+# Pro file for MacOS builds with Qt Creator
+#
+#--------------------------------------------------------
+
+TEMPLATE = subdirs
+SUBDIRS = sdrbase
+SUBDIRS += lz4
+SUBDIRS += librtlsdr
+SUBDIRS += libhackrf
+SUBDIRS += libairspy
+SUBDIRS += plugins/samplesource/filesource
+SUBDIRS += plugins/samplesource/sdrdaemon
+SUBDIRS += plugins/samplesource/rtlsdr
+SUBDIRS += plugins/samplesource/hackrf
+SUBDIRS += plugins/samplesource/airspy
+SUBDIRS += plugins/channel/chanalyzer
+SUBDIRS += plugins/channel/demodam
+SUBDIRS += plugins/channel/demodbfm
+SUBDIRS += plugins/channel/demodlora
+SUBDIRS += plugins/channel/demodnfm
+SUBDIRS += plugins/channel/demodssb
+SUBDIRS += plugins/channel/demodwfm
+SUBDIRS += plugins/channel/tcpsrc
+SUBDIRS += plugins/channel/udpsrc
+
+# Main app must be last
+CONFIG += ordered
+SUBDIRS += app

sdrbase/plugin/pluginmanager.cpp

@@ -355,7 +355,7 @@ void PluginManager::loadPlugins(const QDir& dir)
 
 	foreach (QString fileName, pluginsDir.entryList(QDir::Files))
 	{
-		if (fileName.endsWith(".so") || fileName.endsWith(".dll"))
+        if (fileName.endsWith(".so") || fileName.endsWith(".dll") || fileName.endsWith(".dylib"))
 		{
 			qDebug() << "PluginManager::loadPlugins: fileName: " << qPrintable(fileName);