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assets/locks.c

@@ -0,0 +1,46 @@
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+int glob = 0;
+static pthread_mutex_t mtx = PTHREAD_MUTEX_INITIALIZER;
+
+void *thread_func(void *arg) {
+    int loops = *((int *)arg);
+    int loc;
+
+    for (int i = 0; i < loops; i++) {
+        pthread_mutex_lock(&mtx);
+        loc = glob;
+        loc++;
+        glob = loc;
+        pthread_mutex_unlock(&mtx);
+    }
+
+    return NULL;
+}
+
+int main() {
+    printf("******* Threading Example *******\n");
+    pthread_t thread1;
+    pthread_t thread2;
+    int loops = 10000000;
+
+    if (pthread_create(&thread1, NULL, thread_func, &loops)) {
+        printf("An error occurred while creating thread.\n");
+        return EXIT_FAILURE;
+    }
+
+    if (pthread_create(&thread2, NULL, thread_func, &loops)) {
+        printf("An error occurred while creating thread.\n");
+        return EXIT_FAILURE;
+    }
+
+    pthread_join(thread1, NULL);
+    pthread_join(thread2, NULL);
+
+    printf("glob = %d\n", glob);
+
+    return EXIT_SUCCESS;
+}

assets/threads.c

@@ -0,0 +1,36 @@
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+void *do_work(void *arg);
+
+int main() {
+    printf("******* Threading Example *******\n");
+    pthread_t thread;
+    int i = 0;
+
+    if (pthread_create(&thread, NULL, do_work, NULL)) {
+        printf("An error occurred while creating thread.\n");
+        return EXIT_FAILURE;
+    }
+
+    printf("Parent: Hi!\n");
+    for (int i = 0; i < 10; i++) {
+        printf("Parent: Doing work... (%d)\n", i);
+        sleep(1);
+    }
+
+    pthread_exit(NULL);
+    return EXIT_SUCCESS;
+}
+
+void *do_work(void *arg) {
+    printf("Child: Hi!\n");
+
+    for (int i = 0; i < 10; i++) {
+        printf("Child: Doing work... (%d)\n", i);
+        sleep(1);
+    }
+    pthread_exit(NULL);
+}