fixed some compiling warning.

lib_acl/src/net/acl_mask_addr.c

@@ -33,7 +33,8 @@ void acl_mask_addr(unsigned char *addr_bytes,
 
 	/* abs just avoiding gcc6.1 warning */
 	if (network_bits != 0)
-		*p++ &= (unsigned char) ~0 << abs(CHAR_BIT - network_bits);
+		*p++ &= (unsigned char) ~0 << (unsigned)
+			(CHAR_BIT - network_bits);
 
 	while (p < addr_bytes + addr_byte_count)
 		*p++ = 0;

lib_acl_cpp/src/master/master_threads.cpp

@@ -67,7 +67,8 @@ bool master_threads::run_alone(const char* addrs, const char* path /* = NULL */,
 	int  argc = 0;
 	const char *argv[9];
 
-	argv[argc++] = acl_process_path();
+	const char* proc = acl_process_path();
+	argv[argc++] = proc ? proc : "demo";
 	argv[argc++] = "-L";
 	argv[argc++] = addrs;
 	if (path && *path)

lib_fiber/README.md

@@ -147,6 +147,8 @@ static void fiber_accept(ACL_FIBER *fiber acl_unused, void *ctx acl_unused)
 
 		__nconnect++;
 		printf("accept one, fd: %d\r\n", cfd);
+
+		// 将接收到的客户端连接传递给新创建的协程
 		acl_fiber_create(echo_client, fd, __stack_size);
 	}
 
@@ -203,11 +205,20 @@ int main(int argc, char *argv[])
 	acl_msg_stdout_enable(1);
 
 	printf("%s: call fiber_creater\r\n", __FUNCTION__);
+
+	// 创建监听协程
 	acl_fiber_create(fiber_accept, NULL, 32768);
 
 	printf("call fiber_schedule\r\n");
+
+	// 开始协程调度过程
 	acl_fiber_schedule();
 
 	return 0;
 }
 ```
+
+参考：
+1、网络协程编程：http://zsxxsz.iteye.com/blog/2312043
+2、使用协程编写高并发网络服务：http://zsxxsz.iteye.com/blog/2309654
+3、使用协程方式编写高并发的WEB服务：http://zsxxsz.iteye.com/blog/2309665

lib_fiber/c/src/fiber.c

@@ -36,6 +36,10 @@ __thread int acl_var_hook_sys_api = 0;
 
 static acl_pthread_key_t __fiber_key;
 
+/* forward declare */
+static ACL_FIBER *fiber_alloc(void (*fn)(ACL_FIBER *, void *),
+	void *arg, size_t size);
+
 void acl_fiber_hook_api(int onoff)
 {
 	acl_var_hook_sys_api = onoff;
@@ -258,15 +262,15 @@ static void fiber_swap(ACL_FIBER *from, ACL_FIBER *to)
 	/* use setcontext() for the initial jump, as it allows us to set up
 	 * a stack, but continue with longjmp() as it's much faster.
 	 */
-	if (SETJMP(from->jbuf) == 0) {
+	if (SETJMP(from->env) == 0) {
 		/* context just be used once for set up a stack, which will
 		 * be freed in fiber_start. The context in __thread_fiber
 		 * was set NULL.
 		 */
 		if (to->context != NULL)
 			setcontext(to->context);
 		else
-			LONGJMP(to->jbuf);
+			LONGJMP(to->env);
 	}
 #else
 	if (swapcontext(from->context, to->context) < 0)
@@ -356,6 +360,9 @@ static void fiber_start(unsigned int x, unsigned int y)
 
 static void fiber_free(ACL_FIBER *fiber)
 {
+#ifdef USE_VALGRIND
+	VALGRIND_STACK_DEREGISTER(fiber->vid);
+#endif
 	if (fiber->context)
 		acl_myfree(fiber->context);
 	acl_myfree(fiber->buff);

lib_fiber/c/src/fiber.h

@@ -34,7 +34,11 @@ struct ACL_FIBER {
 	int            nlocal;
 
 #ifdef	USE_JMP
-	jmp_buf        jbuf;
+# if defined(__x86_64__)
+	unsigned long long env[10];
+# else
+	sigjmp_buf     env;
+# endif
 #endif
 	ucontext_t    *context;
 	void         (*fn)(ACL_FIBER *, void *);

lib_fiber/cpp/include/fiber/fiber.hpp

@@ -17,7 +17,7 @@ class fiber
 	 * 在创建一个协程类后，需要本函数启动协程
 	 * @param stack_size {size_t} 创建的协程对象的栈大小
 	 */
-	void start(size_t stack_size = 64000);
+	void start(size_t stack_size = 320000);
 
 	/**
 	 * 获得本协程对象的 ID 号