lib, ipcp: Compile on Apple junk

Disables robust mutexes and clock attributes for condition variables
for compatibility with OSX (SUSv2). Implements clock_gettime and adds
some defines for OSX compatibility in time_utils.

9 files changed, 134 insertions, 36 deletions

diff --git a/cmake/FindProtobufC.cmake b/cmake/FindProtobufC.cmake
index 8c1f23db..6b81d751 100644
--- a/cmake/FindProtobufC.cmake
+++ b/cmake/FindProtobufC.cmake
@@ -50,7 +50,7 @@ endif()
 
 # Find library
 find_library(PROTOBUF_C_LIBRARY
-    NAMES libprotobuf-c.so libprotobuf-c
+    NAMES libprotobuf-c.so libprotobuf-c libprotobuf-c.dylib
 )
 mark_as_advanced(PROTOBUF_C_LIBRARY)
 
diff --git a/include/ouroboros/time_utils.h b/include/ouroboros/time_utils.h
index e097a01f..0b65a2b4 100644
--- a/include/ouroboros/time_utils.h
+++ b/include/ouroboros/time_utils.h
@@ -78,4 +78,26 @@ int tv_to_ts(const struct timeval * src,
 int ts_to_tv(const struct timespec * src,
              struct timeval *        dst);
 
+#ifdef __APPLE__ /* morons */
+
+/* taken from time.h */
+#define CLOCK_REALTIME                  0
+#define CLOCK_MONOTONIC                 1
+#define CLOCK_PROCESS_CPUTIME_ID        2
+#define CLOCK_THREAD_CPUTIME_ID         3
+#define CLOCK_MONOTONIC_RAW             4
+#define CLOCK_REALTIME_COARSE           5
+#define CLOCK_MONOTONIC_COARSE          6
+#define CLOCK_BOOTTIME                  7
+#define CLOCK_REALTIME_ALARM            8
+#define CLOCK_BOOTTIME_ALARM            9
+#define CLOCK_SGI_CYCLE                 10      /* Hardware specific */
+#define CLOCK_TAI                       11
+
+#define CLOCKS_MASK                     (CLOCK_REALTIME | CLOCK_MONOTONIC)
+#define CLOCKS_MONO                     CLOCK_MONOTONIC
+
+int clock_gettime(int clock, struct timespec * t);
+#endif
+
 #endif /* OUROBOROS_TIME_UTILS_H */
diff --git a/src/ipcpd/CMakeLists.txt b/src/ipcpd/CMakeLists.txt
index bb482ed9..43af7a25 100644
--- a/src/ipcpd/CMakeLists.txt
+++ b/src/ipcpd/CMakeLists.txt
@@ -7,4 +7,6 @@ set(IPCP_SOURCES
 add_subdirectory(local)
 add_subdirectory(normal)
 add_subdirectory(shim-udp)
-add_subdirectory(shim-eth-llc)
+if(NOT APPLE)
+  add_subdirectory(shim-eth-llc)
+endif()
diff --git a/src/ipcpd/ipcp.c b/src/ipcpd/ipcp.c
index 87bf9e51..12111a51 100644
--- a/src/ipcpd/ipcp.c
+++ b/src/ipcpd/ipcp.c
@@ -48,7 +48,9 @@ struct ipcp * ipcp_instance_create()
         pthread_rwlock_init(&i->state_lock, NULL);
         pthread_mutex_init(&i->state_mtx, NULL);
         pthread_condattr_init(&cattr);
+#ifndef __APPLE__
         pthread_condattr_setclock(&cattr, PTHREAD_COND_CLOCK);
+#endif
         pthread_cond_init(&i->state_cond, &cattr);
 
         return i;
diff --git a/src/ipcpd/normal/cdap_request.c b/src/ipcpd/normal/cdap_request.c
index cdbbb833..5839360b 100644
--- a/src/ipcpd/normal/cdap_request.c
+++ b/src/ipcpd/normal/cdap_request.c
@@ -48,7 +48,9 @@ struct cdap_request * cdap_request_create(enum cdap_opcode code,
         creq->result = -1;
 
         pthread_condattr_init(&cattr);
+#ifndef __APPLE__
         pthread_condattr_setclock(&cattr, PTHREAD_COND_CLOCK);
+#endif
         pthread_cond_init(&creq->cond, &cattr);
         pthread_mutex_init(&creq->lock, NULL);
 
diff --git a/src/lib/CMakeLists.txt b/src/lib/CMakeLists.txt
index 8c058dd8..14e7051a 100644
--- a/src/lib/CMakeLists.txt
+++ b/src/lib/CMakeLists.txt
@@ -11,9 +11,13 @@ protobuf_generate_c(DIF_CONFIG_PROTO_SRCS DIF_CONFIG_PROTO_HDRS
 protobuf_generate_c(CDAP_PROTO_SRCS CDAP_PROTO_HDRS
   cdap.proto)
 
-find_library(LIBRT_LIBRARIES rt)
-if(NOT LIBRT_LIBRARIES)
-  message(FATAL_ERROR "librt not found")
+if(NOT APPLE)
+  find_library(LIBRT_LIBRARIES rt)
+  if(NOT LIBRT_LIBRARIES)
+    message(FATAL_ERROR "librt not found")
+  endif()
+else()
+  set(LIBRT_LIBRARIES "")
 endif()
 
 find_library(LIBPTHREAD_LIBRARIES pthread)
diff --git a/src/lib/shm_ap_rbuff.c b/src/lib/shm_ap_rbuff.c
index f21b1e86..77e288a8 100644
--- a/src/lib/shm_ap_rbuff.c
+++ b/src/lib/shm_ap_rbuff.c
@@ -131,13 +131,17 @@ struct shm_ap_rbuff * shm_ap_rbuff_create()
         rb->del      = rb->add + 1;
 
         pthread_mutexattr_init(&mattr);
+#ifndef __APPLE__
         pthread_mutexattr_setrobust(&mattr, PTHREAD_MUTEX_ROBUST);
+#endif
         pthread_mutexattr_setpshared(&mattr, PTHREAD_PROCESS_SHARED);
         pthread_mutex_init(rb->lock, &mattr);
 
         pthread_condattr_init(&cattr);
         pthread_condattr_setpshared(&cattr, PTHREAD_PROCESS_SHARED);
+#ifndef __APPLE__
         pthread_condattr_setclock(&cattr, PTHREAD_COND_CLOCK);
+#endif
         pthread_cond_init(rb->add, &cattr);
         pthread_cond_init(rb->del, &cattr);
 
@@ -264,11 +268,14 @@ int shm_ap_rbuff_write(struct shm_ap_rbuff * rb, struct rb_entry * e)
         if (rb == NULL || e == NULL)
                 return -1;
 
+#ifdef __APPLE__
+        pthread_mutex_lock(rb->lock);
+#else
         if (pthread_mutex_lock(rb->lock) == EOWNERDEAD) {
                 LOG_DBG("Recovering dead mutex.");
                 pthread_mutex_consistent(rb->lock);
         }
-
+#endif
         if (!shm_rbuff_free(rb)) {
                 pthread_mutex_unlock(rb->lock);
                 return -1;
@@ -291,12 +298,14 @@ int shm_ap_rbuff_peek_idx(struct shm_ap_rbuff * rb)
 
         if (rb == NULL)
                 return -EINVAL;
-
+#ifdef __APPLE__
+        pthread_mutex_lock(rb->lock);
+#else
         if (pthread_mutex_lock(rb->lock) == EOWNERDEAD) {
                 LOG_DBG("Recovering dead mutex.");
                 pthread_mutex_consistent(rb->lock);
         }
-
+#endif
         if (shm_rbuff_empty(rb)) {
                 pthread_mutex_unlock(rb->lock);
                 return -1;
@@ -325,12 +334,14 @@ int shm_ap_rbuff_peek_b(struct shm_ap_rbuff * rb,
 
         pthread_cleanup_push((void(*)(void *))pthread_mutex_unlock,
                              (void *) rb->lock);
-
+#ifdef __APPLE__
+        pthread_mutex_lock(rb->lock);
+#else
         if (pthread_mutex_lock(rb->lock) == EOWNERDEAD) {
                 LOG_DBG("Recovering dead mutex.");
                 pthread_mutex_consistent(rb->lock);
         }
-
+#endif
         while (shm_rbuff_empty(rb)) {
                 if (timeout != NULL)
                         ret = pthread_cond_timedwait(rb->add,
@@ -338,12 +349,12 @@ int shm_ap_rbuff_peek_b(struct shm_ap_rbuff * rb,
                                                      &abstime);
                 else
                         ret = pthread_cond_wait(rb->add, rb->lock);
-
+#ifndef __APPLE__
                 if (ret == EOWNERDEAD) {
                         LOG_DBG("Recovering dead mutex.");
                         pthread_mutex_consistent(rb->lock);
                 }
-
+#endif
                 if (ret == ETIMEDOUT)
                         break;
         }
@@ -368,17 +379,23 @@ struct rb_entry * shm_ap_rbuff_read(struct shm_ap_rbuff * rb)
         pthread_cleanup_push((void(*)(void *))pthread_mutex_unlock,
                              (void *) rb->lock);
 
+#ifdef __APPLE__
+        pthread_mutex_lock(rb->lock);
+#else
         if (pthread_mutex_lock(rb->lock) == EOWNERDEAD) {
                 LOG_DBG("Recovering dead mutex.");
                 pthread_mutex_consistent(rb->lock);
         }
-
+#endif
         while (shm_rbuff_empty(rb))
+#ifdef __APPLE__
+                pthread_cond_wait(rb->add, rb->lock);
+#else
                 if (pthread_cond_wait(rb->add, rb->lock) == EOWNERDEAD) {
-                LOG_DBG("Recovering dead mutex.");
-                pthread_mutex_consistent(rb->lock);
-        }
-
+                        LOG_DBG("Recovering dead mutex.");
+                        pthread_mutex_consistent(rb->lock);
+                }
+#endif
         e = malloc(sizeof(*e));
         if (e != NULL) {
                 *e = *(rb->shm_base + *rb->ptr_tail);
@@ -394,11 +411,14 @@ ssize_t shm_ap_rbuff_read_port(struct shm_ap_rbuff * rb, int port_id)
 {
         ssize_t idx = -1;
 
+#ifdef __APPLE__
+        pthread_mutex_lock(rb->lock);
+#else
         if (pthread_mutex_lock(rb->lock) == EOWNERDEAD) {
                 LOG_DBG("Recovering dead mutex.");
                 pthread_mutex_consistent(rb->lock);
         }
-
+#endif
         if (shm_rbuff_empty(rb) || tail_el_ptr(rb)->port_id != port_id) {
                 pthread_mutex_unlock(rb->lock);
                 return -1;
@@ -422,11 +442,14 @@ ssize_t shm_ap_rbuff_read_port_b(struct shm_ap_rbuff * rb,
         int ret = 0;
         ssize_t idx = -1;
 
+#ifdef __APPLE__
+        pthread_mutex_lock(rb->lock);
+#else
         if (pthread_mutex_lock(rb->lock) == EOWNERDEAD) {
                 LOG_DBG("Recovering dead mutex.");
                 pthread_mutex_consistent(rb->lock);
         }
-
+#endif
         if (timeout != NULL) {
                 clock_gettime(PTHREAD_COND_CLOCK, &abstime);
                 ts_add(&abstime, timeout, &abstime);
@@ -444,12 +467,12 @@ ssize_t shm_ap_rbuff_read_port_b(struct shm_ap_rbuff * rb,
                                                              &abstime);
                         else
                                 ret = pthread_cond_wait(rb->add, rb->lock);
-
+#ifndef __APPLE__
                         if (ret == EOWNERDEAD) {
                                 LOG_DBG("Recovering dead mutex.");
                                 pthread_mutex_consistent(rb->lock);
                         }
-
+#endif
                         if (ret == ETIMEDOUT)
                                 break;
                 }
@@ -461,12 +484,12 @@ ssize_t shm_ap_rbuff_read_port_b(struct shm_ap_rbuff * rb,
                                                              &abstime);
                         else
                                 ret = pthread_cond_wait(rb->del, rb->lock);
-
+#ifndef __APPLE__
                         if (ret == EOWNERDEAD) {
                                 LOG_DBG("Recovering dead mutex.");
                                 pthread_mutex_consistent(rb->lock);
                         }
-
+#endif
                         if (ret == ETIMEDOUT)
                                 break;
                 }
diff --git a/src/lib/shm_rdrbuff.c b/src/lib/shm_rdrbuff.c
index d42dbea7..87fe2d97 100644
--- a/src/lib/shm_rdrbuff.c
+++ b/src/lib/shm_rdrbuff.c
@@ -228,7 +228,9 @@ struct shm_rdrbuff * shm_rdrbuff_create()
 
         pthread_mutexattr_init(&mattr);
         pthread_mutexattr_setpshared(&mattr, PTHREAD_PROCESS_SHARED);
+#ifndef __APPLE__
         pthread_mutexattr_setrobust(&mattr, PTHREAD_MUTEX_ROBUST);
+#endif
         pthread_mutex_init(rdrb->lock, &mattr);
 
         pthread_condattr_init(&cattr);
@@ -325,11 +327,14 @@ void * shm_rdrbuff_sanitize(void * o)
 
         if (rdrb == NULL)
                 return (void *) -1;
-
+#ifdef __APPLE__
+        pthread_mutex_lock(rdrb->lock);
+#else
         if (pthread_mutex_lock(rdrb->lock) == EOWNERDEAD) {
                 LOG_WARN("Recovering dead mutex.");
                 pthread_mutex_consistent(rdrb->lock);
         }
+#endif
 
         pthread_cleanup_push((void (*)(void *)) pthread_mutex_unlock,
                              (void *) rdrb->lock);
@@ -338,12 +343,14 @@ void * shm_rdrbuff_sanitize(void * o)
                 int ret = 0;
                 struct timespec now;
                 struct timespec dl;
-
+#ifdef __APPLE__
+                pthread_cond_wait(rdrb->full, rdrb->lock);
+#else
                 if (pthread_cond_wait(rdrb->full, rdrb->lock) == EOWNERDEAD) {
                         LOG_WARN("Recovering dead mutex.");
                         pthread_mutex_consistent(rdrb->lock);
                 }
-
+#endif
                 *rdrb->choked = 1;
 
                 garbage_collect(rdrb);
@@ -367,12 +374,12 @@ void * shm_rdrbuff_sanitize(void * o)
                                                      &dl);
                         if (!ret)
                                 continue;
-
+#ifndef __APPLE__
                         if (ret == EOWNERDEAD) {
                                 LOG_WARN("Recovering dead mutex.");
                                 pthread_mutex_consistent(rdrb->lock);
                         }
-
+#endif
                         if (ret == ETIMEDOUT) {
                                 LOG_DBGF("SDU timed out (dst: %d).", api);
                                 clean_sdus(rdrb, api);
@@ -462,10 +469,14 @@ ssize_t shm_rdrbuff_write(struct shm_rdrbuff * rdrb,
                 return -1;
         }
 #endif
+#ifdef __APPLE__
+        pthread_mutex_lock(rdrb->lock);
+#else
         if (pthread_mutex_lock(rdrb->lock) == EOWNERDEAD) {
                 LOG_DBGF("Recovering dead mutex.");
                 pthread_mutex_consistent(rdrb->lock);
         }
+#endif
 #ifdef SHM_RDRBUFF_MULTI_BLOCK
         while (sz > 0) {
                 sz -= SHM_RDRB_BLOCK_SIZE;
@@ -547,11 +558,14 @@ ssize_t shm_rdrbuff_write_b(struct shm_rdrbuff * rdrb,
                 return -1;
         }
 #endif
+#ifdef __APPLE__
+        pthread_mutex_lock(rdrb->lock);
+#else
         if (pthread_mutex_lock(rdrb->lock) == EOWNERDEAD) {
                 LOG_DBGF("Recovering dead mutex.");
                 pthread_mutex_consistent(rdrb->lock);
         }
-
+#endif
         pthread_cleanup_push((void(*)(void *))pthread_mutex_unlock,
                              (void *) rdrb->lock);
 
@@ -616,12 +630,14 @@ int shm_rdrbuff_read(uint8_t **           dst,
 
         if (idx > SHM_BUFFER_SIZE)
                 return -1;
-
+#ifdef __APPLE__
+        pthread_mutex_lock(rdrb->lock);
+#else
         if (pthread_mutex_lock(rdrb->lock) == EOWNERDEAD) {
                 LOG_DBGF("Recovering dead mutex.");
                 pthread_mutex_consistent(rdrb->lock);
         }
-
+#endif
         if (shm_rdrb_empty(rdrb)) {
                 pthread_mutex_unlock(rdrb->lock);
                 return -1;
@@ -640,12 +656,14 @@ int shm_rdrbuff_remove(struct shm_rdrbuff * rdrb, ssize_t idx)
 {
         if (idx > SHM_BUFFER_SIZE)
                 return -1;
-
+#ifdef __APPLE__
+        pthread_mutex_lock(rdrb->lock);
+#else
         if (pthread_mutex_lock(rdrb->lock) == EOWNERDEAD) {
                 LOG_DBGF("Recovering dead mutex.");
                 pthread_mutex_consistent(rdrb->lock);
         }
-
+#endif
         if (shm_rdrb_empty(rdrb)) {
                 pthread_mutex_unlock(rdrb->lock);
                 return -1;
@@ -682,11 +700,14 @@ uint8_t * shm_du_buff_head_alloc(struct shm_rdrbuff * rdrb,
         if (idx < 0 || idx > SHM_BUFFER_SIZE)
                 return NULL;
 
+#ifdef __APPLE__
+        pthread_mutex_lock(rdrb->lock);
+#else
         if (pthread_mutex_lock(rdrb->lock) == EOWNERDEAD) {
                 LOG_DBGF("Recovering dead mutex.");
                 pthread_mutex_consistent(rdrb->lock);
         }
-
+#endif
         sdb = idx_to_du_buff_ptr(rdrb, idx);
 
         if ((long) (sdb->du_head - size) < 0) {
@@ -717,11 +738,14 @@ uint8_t * shm_du_buff_tail_alloc(struct shm_rdrbuff * rdrb,
         if (idx < 0 || idx > SHM_BUFFER_SIZE)
                 return NULL;
 
+#ifdef __APPLE__
+        pthread_mutex_lock(rdrb->lock);
+#else
         if (pthread_mutex_lock(rdrb->lock) == EOWNERDEAD) {
                 LOG_DBGF("Recovering dead mutex.");
                 pthread_mutex_consistent(rdrb->lock);
         }
-
+#endif
         sdb = idx_to_du_buff_ptr(rdrb, idx);
 
         if (sdb->du_tail + size >= sdb->size) {
@@ -751,10 +775,14 @@ int shm_du_buff_head_release(struct shm_rdrbuff * rdrb,
         if (idx < 0 || idx > SHM_BUFFER_SIZE)
                 return -1;
 
+#ifdef __APPLE__
+        pthread_mutex_lock(rdrb->lock);
+#else
         if (pthread_mutex_lock(rdrb->lock) == EOWNERDEAD) {
                 LOG_DBGF("Recovering dead mutex.");
                 pthread_mutex_consistent(rdrb->lock);
         }
+#endif
 
         sdb = idx_to_du_buff_ptr(rdrb, idx);
 
@@ -783,11 +811,14 @@ int shm_du_buff_tail_release(struct shm_rdrbuff * rdrb,
         if (idx < 0 || idx > SHM_BUFFER_SIZE)
                 return -1;
 
+#ifdef __APPLE__
+        pthread_mutex_lock(rdrb->lock);
+#else
         if (pthread_mutex_lock(rdrb->lock) == EOWNERDEAD) {
                 LOG_DBGF("Recovering dead mutex.");
                 pthread_mutex_consistent(rdrb->lock);
         }
-
+#endif
         sdb = idx_to_du_buff_ptr(rdrb, idx);
 
         if (size > sdb->du_tail - sdb->du_head) {
diff --git a/src/lib/time_utils.c b/src/lib/time_utils.c
index d0b312da..b34e4763 100644
--- a/src/lib/time_utils.c
+++ b/src/lib/time_utils.c
@@ -140,3 +140,15 @@ int ts_to_tv(const struct timespec * src,
 
         return 0;
 }
+
+#ifdef __APPLE__
+int clock_gettime(int clock, struct timespec * t)
+{
+        struct timeval tv;
+        int ret = gettimeofday(&tv, NULL);
+        t->tv_sec  = tv.tv_sec;
+        t->tv_nsec = tv.tv_usec * 1000;
+        (void) clock;
+        return ret;
+}
+#endif