diff --git a/src/dcurl.c b/src/dcurl.c
index 645989d..aca0dab 100644
--- a/src/dcurl.c
+++ b/src/dcurl.c
@@ -17,6 +17,7 @@
 #endif
 #include "implcontext.h"
 #include "trinary.h"
+#include "uv.h"
 #if defined(ENABLE_AVX)
 #include "pow_avx.h"
 #elif defined(ENABLE_SSE)
@@ -25,20 +26,9 @@
 #include "pow_c.h"
 #endif
 
-#ifdef __APPLE__
-#include <dispatch/dispatch.h>
-#else
-#include <semaphore.h>
-#endif
-
 /* check whether dcurl is initialized */
 static bool isInitialized = false;
-
-#ifdef __APPLE__
-static dispatch_semaphore_t notify;
-#else
-static sem_t notify;
-#endif
+static uv_sem_t notify;
 
 LIST_HEAD(IMPL_LIST);
 
@@ -78,11 +68,7 @@ bool dcurl_init()
     ret &= registerImplContext(&PoWFPGAAccel_Context);
 #endif
 
-#ifdef __APPLE__
-    notify = dispatch_semaphore_create(0);
-#else
-    sem_init(&notify, 0, 0);
-#endif
+    uv_sem_init(&notify, 0);
     return isInitialized = ret;
 }
 
@@ -118,11 +104,7 @@ int8_t *dcurl_entry(int8_t *trytes, int mwm, int threads)
                 goto do_pow;
             }
         }
-#ifdef __APPLE__
-        dispatch_semaphore_wait(notify, DISPATCH_TIME_FOREVER);
-#else
-        sem_wait(&notify);
-#endif
+        uv_sem_wait(&notify);
     } while (1);
 
 do_pow:
@@ -133,10 +115,6 @@ int8_t *dcurl_entry(int8_t *trytes, int mwm, int threads)
     }
     freePoWContext(impl, pow_ctx);
     exitImplContext(impl);
-#ifdef __APPLE__
-    dispatch_semaphore_signal(notify);
-#else
-    sem_post(&notify);
-#endif
+    uv_sem_post(&notify);
     return res;
 }
diff --git a/src/implcontext.c b/src/implcontext.c
index b35ed15..d09dbc3 100644
--- a/src/implcontext.c
+++ b/src/implcontext.c
@@ -30,21 +30,21 @@ void destroyImplContext(ImplContext *impl_ctx)
 
 bool enterImplContext(ImplContext *impl_ctx)
 {
-    pthread_mutex_lock(&impl_ctx->lock);
+    uv_mutex_lock(&impl_ctx->lock);
     if (impl_ctx->num_working_thread >= impl_ctx->num_max_thread) {
-        pthread_mutex_unlock(&impl_ctx->lock);
+        uv_mutex_unlock(&impl_ctx->lock);
         return false; /* Access Failed */
     }
     impl_ctx->num_working_thread++;
-    pthread_mutex_unlock(&impl_ctx->lock);
+    uv_mutex_unlock(&impl_ctx->lock);
     return true; /* Access Success */
 }
 
 void exitImplContext(ImplContext *impl_ctx)
 {
-    pthread_mutex_lock(&impl_ctx->lock);
+    uv_mutex_lock(&impl_ctx->lock);
     impl_ctx->num_working_thread--;
-    pthread_mutex_unlock(&impl_ctx->lock);
+    uv_mutex_unlock(&impl_ctx->lock);
 }
 
 void *getPoWContext(ImplContext *impl_ctx, int8_t *trytes, int mwm, int threads)
diff --git a/src/implcontext.h b/src/implcontext.h
index dfc5dd7..9a406ce 100644
--- a/src/implcontext.h
+++ b/src/implcontext.h
@@ -1,11 +1,11 @@
 #ifndef IMPL_CTX_H_
 #define IMPL_CTX_H_
 
-#include <pthread.h>
 #include <stdbool.h>
 #include <stdint.h>
 #include "common.h"
 #include "list.h"
+#include "uv.h"
 
 typedef struct _impl_context ImplContext;
 
@@ -14,7 +14,7 @@ struct _impl_context {
     char *description;
 
     /* Multi-thread Management */
-    pthread_mutex_t lock;
+    uv_mutex_t lock;
     int bitmap; /* Used to tell which slot is available */
     int num_max_thread;
     int num_working_thread;
diff --git a/src/pow_avx.c b/src/pow_avx.c
index 1e789e4..25a67f8 100644
--- a/src/pow_avx.c
+++ b/src/pow_avx.c
@@ -6,11 +6,9 @@
  */
 
 #include "pow_avx.h"
-#include <pthread.h>
 #include <stdint.h>
 #include <stdio.h>
 #include <string.h>
-#include <uv.h>
 #include "cpu-utils.h"
 #include "curl.h"
 #include "implcontext.h"
@@ -610,7 +608,7 @@ static bool PoWAVX_Context_Initialize(ImplContext *impl_ctx)
         uv_loop_init(&ctx[i].loop);
     }
     impl_ctx->context = ctx;
-    pthread_mutex_init(&impl_ctx->lock, NULL);
+    uv_mutex_init(&impl_ctx->lock);
     return true;
 
 fail:
@@ -643,11 +641,11 @@ static void *PoWAVX_getPoWContext(ImplContext *impl_ctx,
                                   int mwm,
                                   int threads)
 {
-    pthread_mutex_lock(&impl_ctx->lock);
+    uv_mutex_lock(&impl_ctx->lock);
     for (int i = 0; i < impl_ctx->num_max_thread; i++) {
         if (impl_ctx->bitmap & (0x1 << i)) {
             impl_ctx->bitmap &= ~(0x1 << i);
-            pthread_mutex_unlock(&impl_ctx->lock);
+            uv_mutex_unlock(&impl_ctx->lock);
             PoW_AVX_Context *ctx =
                 impl_ctx->context + sizeof(PoW_AVX_Context) * i;
             memcpy(ctx->input_trytes, trytes, TRANSACTION_TRYTES_LENGTH);
@@ -660,15 +658,15 @@ static void *PoWAVX_getPoWContext(ImplContext *impl_ctx,
             return ctx;
         }
     }
-    pthread_mutex_unlock(&impl_ctx->lock);
+    uv_mutex_unlock(&impl_ctx->lock);
     return NULL; /* It should not happen */
 }
 
 static bool PoWAVX_freePoWContext(ImplContext *impl_ctx, void *pow_ctx)
 {
-    pthread_mutex_lock(&impl_ctx->lock);
+    uv_mutex_lock(&impl_ctx->lock);
     impl_ctx->bitmap |= 0x1 << ((PoW_AVX_Context *) pow_ctx)->indexOfContext;
-    pthread_mutex_unlock(&impl_ctx->lock);
+    uv_mutex_unlock(&impl_ctx->lock);
     return true;
 }
 
diff --git a/src/pow_avx.h b/src/pow_avx.h
index 6103e51..7818abc 100644
--- a/src/pow_avx.h
+++ b/src/pow_avx.h
@@ -1,13 +1,12 @@
 #ifndef POW_AVX_H_
 #define POW_AVX_H_
 
-#include <pthread.h>
 #include <stdbool.h>
 #include <stdint.h>
-#include <uv.h>
 #include "common.h"
 #include "constants.h"
 #include "trinary.h"
+#include "uv.h"
 
 typedef struct _pwork_struct Pwork_struct;
 
diff --git a/src/pow_c.c b/src/pow_c.c
index 10f6cd9..5c44e26 100644
--- a/src/pow_c.c
+++ b/src/pow_c.c
@@ -6,11 +6,9 @@
  */
 
 #include "pow_c.h"
-#include <pthread.h>
 #include <stdint.h>
 #include <stdio.h>
 #include <string.h>
-#include <uv.h>
 #include "cpu-utils.h"
 #include "curl.h"
 #include "implcontext.h"
@@ -374,7 +372,7 @@ static bool PoWC_Context_Initialize(ImplContext *impl_ctx)
         uv_loop_init(&ctx[i].loop);
     }
     impl_ctx->context = ctx;
-    pthread_mutex_init(&impl_ctx->lock, NULL);
+    uv_mutex_init(&impl_ctx->lock);
     return true;
 
 fail:
@@ -407,11 +405,11 @@ static void *PoWC_getPoWContext(ImplContext *impl_ctx,
                                 int mwm,
                                 int threads)
 {
-    pthread_mutex_lock(&impl_ctx->lock);
+    uv_mutex_lock(&impl_ctx->lock);
     for (int i = 0; i < impl_ctx->num_max_thread; i++) {
         if (impl_ctx->bitmap & (0x1 << i)) {
             impl_ctx->bitmap &= ~(0x1 << i);
-            pthread_mutex_unlock(&impl_ctx->lock);
+            uv_mutex_unlock(&impl_ctx->lock);
             PoW_C_Context *ctx = impl_ctx->context + sizeof(PoW_C_Context) * i;
             memcpy(ctx->input_trytes, trytes, TRANSACTION_TRYTES_LENGTH);
             ctx->mwm = mwm;
@@ -423,15 +421,15 @@ static void *PoWC_getPoWContext(ImplContext *impl_ctx,
             return ctx;
         }
     }
-    pthread_mutex_unlock(&impl_ctx->lock);
+    uv_mutex_unlock(&impl_ctx->lock);
     return NULL; /* It should not happen */
 }
 
 static bool PoWC_freePoWContext(ImplContext *impl_ctx, void *pow_ctx)
 {
-    pthread_mutex_lock(&impl_ctx->lock);
+    uv_mutex_lock(&impl_ctx->lock);
     impl_ctx->bitmap |= 0x1 << ((PoW_C_Context *) pow_ctx)->indexOfContext;
-    pthread_mutex_unlock(&impl_ctx->lock);
+    uv_mutex_unlock(&impl_ctx->lock);
     return true;
 }
 
diff --git a/src/pow_c.h b/src/pow_c.h
index 842c290..546a6db 100644
--- a/src/pow_c.h
+++ b/src/pow_c.h
@@ -1,13 +1,12 @@
 #ifndef POW_C_H_
 #define POW_C_H_
 
-#include <pthread.h>
 #include <stdbool.h>
 #include <stdint.h>
-#include <uv.h>
 #include "common.h"
 #include "constants.h"
 #include "trinary.h"
+#include "uv.h"
 
 typedef struct _pwork_struct Pwork_struct;
 
diff --git a/src/pow_cl.c b/src/pow_cl.c
index 838ddc0..429d94a 100644
--- a/src/pow_cl.c
+++ b/src/pow_cl.c
@@ -271,7 +271,7 @@ static bool PoWCL_Context_Initialize(ImplContext *impl_ctx)
         impl_ctx->bitmap = impl_ctx->bitmap << 1 | 0x1;
     }
     impl_ctx->context = ctx;
-    pthread_mutex_init(&impl_ctx->lock, NULL);
+    uv_mutex_init(&impl_ctx->lock);
     return true;
 
 fail:
@@ -290,11 +290,11 @@ static void *PoWCL_getPoWContext(ImplContext *impl_ctx,
                                  int mwm,
                                  int threads)
 {
-    pthread_mutex_lock(&impl_ctx->lock);
+    uv_mutex_lock(&impl_ctx->lock);
     for (int i = 0; i < impl_ctx->num_max_thread; i++) {
         if (impl_ctx->bitmap & (0x1 << i)) {
             impl_ctx->bitmap &= ~(0x1 << i);
-            pthread_mutex_unlock(&impl_ctx->lock);
+            uv_mutex_unlock(&impl_ctx->lock);
             PoW_CL_Context *ctx =
                 impl_ctx->context + sizeof(PoW_CL_Context) * i;
             memcpy(ctx->input_trytes, trytes, TRANSACTION_TRYTES_LENGTH);
@@ -303,15 +303,15 @@ static void *PoWCL_getPoWContext(ImplContext *impl_ctx,
             return ctx;
         }
     }
-    pthread_mutex_unlock(&impl_ctx->lock);
+    uv_mutex_unlock(&impl_ctx->lock);
     return NULL; /* It should not happen */
 }
 
 static bool PoWCL_freePoWContext(ImplContext *impl_ctx, void *pow_ctx)
 {
-    pthread_mutex_lock(&impl_ctx->lock);
+    uv_mutex_lock(&impl_ctx->lock);
     impl_ctx->bitmap |= 0x1 << ((PoW_CL_Context *) pow_ctx)->indexOfContext;
-    pthread_mutex_unlock(&impl_ctx->lock);
+    uv_mutex_unlock(&impl_ctx->lock);
     return true;
 }
 
diff --git a/src/pow_fpga_accel.c b/src/pow_fpga_accel.c
index 0054dd7..eb4a644 100644
--- a/src/pow_fpga_accel.c
+++ b/src/pow_fpga_accel.c
@@ -163,7 +163,6 @@ static bool PoWFPGAAccel_Context_Initialize(ImplContext *impl_ctx)
     ctx->cpow_map = (uint32_t *) (ctx->fpga_regs_map + CPOW_BASE);
 
     impl_ctx->context = ctx;
-    pthread_mutex_init(&impl_ctx->lock, NULL);
 
     return true;
 
diff --git a/src/pow_sse.c b/src/pow_sse.c
index e0131c6..b2e77e7 100644
--- a/src/pow_sse.c
+++ b/src/pow_sse.c
@@ -7,11 +7,9 @@
 
 #include "pow_sse.h"
 #include <inttypes.h>
-#include <pthread.h>
 #include <stdint.h>
 #include <stdio.h>
 #include <string.h>
-#include <uv.h>
 #include "cpu-utils.h"
 #include "curl.h"
 #include "implcontext.h"
@@ -392,7 +390,7 @@ static bool PoWSSE_Context_Initialize(ImplContext *impl_ctx)
         uv_loop_init(&ctx[i].loop);
     }
     impl_ctx->context = ctx;
-    pthread_mutex_init(&impl_ctx->lock, NULL);
+    uv_mutex_init(&impl_ctx->lock);
     return true;
 
 fail:
@@ -425,11 +423,11 @@ static void *PoWSSE_getPoWContext(ImplContext *impl_ctx,
                                   int mwm,
                                   int threads)
 {
-    pthread_mutex_lock(&impl_ctx->lock);
+    uv_mutex_lock(&impl_ctx->lock);
     for (int i = 0; i < impl_ctx->num_max_thread; i++) {
         if (impl_ctx->bitmap & (0x1 << i)) {
             impl_ctx->bitmap &= ~(0x1 << i);
-            pthread_mutex_unlock(&impl_ctx->lock);
+            uv_mutex_unlock(&impl_ctx->lock);
             PoW_SSE_Context *ctx =
                 impl_ctx->context + sizeof(PoW_SSE_Context) * i;
             memcpy(ctx->input_trytes, trytes, TRANSACTION_TRYTES_LENGTH);
@@ -442,15 +440,15 @@ static void *PoWSSE_getPoWContext(ImplContext *impl_ctx,
             return ctx;
         }
     }
-    pthread_mutex_unlock(&impl_ctx->lock);
+    uv_mutex_unlock(&impl_ctx->lock);
     return NULL; /* It should not happen */
 }
 
 static bool PoWSSE_freePoWContext(ImplContext *impl_ctx, void *pow_ctx)
 {
-    pthread_mutex_lock(&impl_ctx->lock);
+    uv_mutex_lock(&impl_ctx->lock);
     impl_ctx->bitmap |= 0x1 << ((PoW_SSE_Context *) pow_ctx)->indexOfContext;
-    pthread_mutex_unlock(&impl_ctx->lock);
+    uv_mutex_unlock(&impl_ctx->lock);
     return true;
 }
 
diff --git a/src/pow_sse.h b/src/pow_sse.h
index 160e12c..73e5af7 100644
--- a/src/pow_sse.h
+++ b/src/pow_sse.h
@@ -1,13 +1,12 @@
 #ifndef POW_SSE_H_
 #define POW_SSE_H_
 
-#include <pthread.h>
 #include <stdbool.h>
 #include <stdint.h>
-#include <uv.h>
 #include "common.h"
 #include "constants.h"
 #include "trinary.h"
+#include "uv.h"
 
 typedef struct _pwork_struct Pwork_struct;