Support Userland semaphore server

Ubiquitous/XiZi_AIoT/services/app/test_thread.c

@@ -10,38 +10,91 @@
  * See the Mulan PSL v2 for more details.
  */
 
+#include "libfs.h"
+#include "libsemaphore.h"
 #include "libserial.h"
 #include "usyscall.h"
 
 static int global_value;
+static sem_t sem;
+static char sem_server_name[] = "SemTestServer";
 
 int sub_thread_entry(int argc, char** argv)
 {
-    for (int i = 0; i < 1000; i++) {
+    for (int i = 0; i < 100; i++) {
         global_value++;
-        printf("[gval]: %d\n", global_value);
     }
+
+    struct Session sem_session;
+    while (connect_session(&sem_session, sem_server_name, 4096) < 0) {
+        yield(SYS_TASK_YIELD_NO_REASON);
+    }
+
+    printf("Thread signal sem.\n");
+    sem_signal(&sem_session, &sem);
+
     exit(0);
     return 0;
 }
 
+static char sem_file_name[] = "/semaphore_server";
 int main(int argc, char** argv)
 {
     global_value = 0;
 
-    for (int i = 0; i < 10; i++) {
-        global_value++;
-        printf("|gval|: %d\n", global_value);
-    }
+    printf("Test Create Semaphore.\n");
+    struct Session sem_session;
+    bool spawn_sem_server = false;
+    while (connect_session(&sem_session, sem_server_name, 4096) < 0) {
+        if (!spawn_sem_server) {
+            struct Session fs_session;
+            printf("Connect FS.\n");
+            if (connect_session(&fs_session, "MemFS", 8192) < 0) {
+                printf("Connect FS failed.\n");
+                exit(1);
+            }
 
+            printf("Loading semaphore server.\n");
+            int fd = -1;
+            if ((fd = open(&fs_session, sem_file_name)) < 0) {
+                printf("Open %s failed.\n", sem_file_name);
+                free_session(&fs_session);
+                exit(1);
+            }
+
+            printf("Spawn semaphore server.\n");
+            char* sem_server_params[] = { sem_server_name, sem_server_name, NULL };
+            if (spawn(&fs_session, fd, read, fsize, sem_server_name, sem_server_params) < 0) {
+                printf("Spawn %s failed.\n", sem_file_name);
+                free_session(&fs_session);
+                exit(1);
+            }
+
+            spawn_sem_server = true;
+            free_session(&fs_session);
+        }
+    }
+    printf("Create new sem.\n");
+    sem_create(&sem_session, &sem, 0);
+
+    printf("Create new thread.\n");
     char* task_param[2] = { "add_gval", NULL };
-    int tid = thread(sub_thread_entry, "add_gval", task_param);
-
-    for (int i = 0; i < 1000; i++) {
-        global_value++;
-        printf("|gval|: %d\n", global_value);
+    int nr_thread = 0;
+    for (int i = 0; i < 128; i++) {
+        int tid = thread(sub_thread_entry, "add_gval", task_param);
+        if (tid > 0) {
+            nr_thread++;
+        }
     }
 
+    printf("Main thread waiting for sem for %d times.\n", nr_thread);
+    for (int i = 0; i < nr_thread; i++) {
+        int sem_wait_ret = sem_wait(&sem_session, &sem, 0);
+    }
+    printf("Main thread sem %d wait return, global val: %d.\n", sem, global_value);
+
+    sem_delete(&sem_session, &sem);
+    free_session(&sem_session);
     exit(0);
     return 0;
 }