# HG changeset patch
# User Masataka Kohagura <e085726@ie.u-ryukyu.ac.jp>
# Date 1388649448 -32400
# Node ID 7b0b23f3538d267cba21fd988e12f74493e558c2
# Parent  4b742b1fedb862527af9cbcd5405ca7eaa9843bf
first pthread programming

diff -r 4b742b1fedb8 -r 7b0b23f3538d parallel_processing/ppb_first_thread/Makefile
--- a/parallel_processing/ppb_first_thread/Makefile	Thu Jan 02 15:18:21 2014 +0900
+++ b/parallel_processing/ppb_first_thread/Makefile	Thu Jan 02 16:57:28 2014 +0900
@@ -1,5 +1,11 @@
+TARGET = ppb_first_thread
 CC = clang++
 CPPFLAGS = -g -O0
-ppb_first_thread: ppb_first_thread.o
+
+$(TARGET): $(TARGET).o
 	$(CC) -g -O0 -o $@ $<
-ppb_first_thread.o: ppb_first_thread.cc
+$(TARGET).o: $(TARGET).cc
+
+clean:
+	rm -f $(TARGET)
+	rm -f *.o
diff -r 4b742b1fedb8 -r 7b0b23f3538d parallel_processing/ppb_first_thread/ppb_first_thread.cc
--- a/parallel_processing/ppb_first_thread/ppb_first_thread.cc	Thu Jan 02 15:18:21 2014 +0900
+++ b/parallel_processing/ppb_first_thread/ppb_first_thread.cc	Thu Jan 02 16:57:28 2014 +0900
@@ -0,0 +1,43 @@
+#include <stdio.h>
+#include <pthread.h>
+
+#define THREAD_NUM 2
+#define DATA_NUM 10
+
+typedef struct _thread_arg {
+    int thread_no;
+    int *data;
+} thread_arg_t;
+
+void *
+thread_func(void *arg)
+{
+    thread_arg_t *targ = (thread_arg_t *)arg;
+
+    for (int i = 0; i < DATA_NUM; i++) {
+        printf("thread%d : %d + 1 = %d\n",
+            targ->thread_no, targ->data[i], targ->data[i] + 1);
+    }
+    return 0;
+}
+
+int
+main()
+{
+    pthread_t handle[THREAD_NUM];
+    thread_arg_t targ[THREAD_NUM];
+    int data[DATA_NUM];
+    int i;
+
+    for (i = 0; i < DATA_NUM; i++) data[i] = i;
+
+    for (i = 0; i < THREAD_NUM; i++) {
+        targ[i].thread_no = i;
+        targ[i].data = data;
+
+        pthread_create(&handle[i], NULL, &thread_func, (void*)&targ[i]);
+    }
+
+    for (i = 0; i < THREAD_NUM; i++) pthread_join(handle[i], NULL);
+    return 0;
+}