X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=bertos%2Fkern%2Fmsg.h;h=f00f6060294e224edd97c65c2abea38a23fc6ce6;hb=dcee6b7043c0b895dc3489dd379a5264b5af32c1;hp=444c53265aafe954970a554d184e27a028edbf00;hpb=4cc44c9888a0336b9d01121ec0b7ad95f4a76195;p=bertos.git diff --git a/bertos/kern/msg.h b/bertos/kern/msg.h index 444c5326..f00f6060 100644 --- a/bertos/kern/msg.h +++ b/bertos/kern/msg.h @@ -67,6 +67,11 @@ * receiver wakes up, it usually invokes msg_get() to pick * the next message from the port. * + * \note + * When you put a message into a port, such message becomes + * unavailable until you retrieve it using msg_get(), eg. + * you must not delete it or put it into another port. + * * Message ports can hold any number of pending messages, * and receivers usually process them in FIFO order. * Other scheduling policies are possible, but not implemented @@ -106,6 +111,8 @@ * } TestMsg; * * + * PROC_DEFINE_STACK(sender_stack, KERN_MINSTACKSIZE); + * * // A process that sends two messages and waits for replies. * static void sender_proc(void) * { @@ -114,30 +121,30 @@ * TestMsg msg2; * Msg *reply; * - * msg_initPort(&reply_port, - * event_createSignal(proc_current(), SIGF_SINGLE); + * msg_initPort(&test_reply_port, + * event_createSignal(proc_current(), SIG_SINGLE); * * // Fill-in first message and send it out. * msg1.x = 3; * msg1.y = 2; * msg1.msg.replyPort = &test_reply_port; - * msg_put(&test_port, &msg1); + * msg_put(&test_port, &msg1.msg); * * // Fill-in second message and send it out too. * msg2.x = 5; * msg2.y = 4; * msg2.msg.replyPort = &test_reply_port; - * msg_put(&test_port, &msg1); + * msg_put(&test_port, &msg2.msg); * * // Wait for a reply... * sig_wait(SIG_SINGLE); * - * reply = (TestMsg *)msg_get(&test_reply_port); + reply = containerof(msg_get(&test_reply_port), TestMsg, msg); * ASSERT(reply != NULL); * ASSERT(reply->result == 5); * * // Get reply to second message. - * while (!(reply = (TestMsg *)msg_get(&test_reply_port)) + * while (!(reply = containerof(msg_get(&test_reply_port), TestMsg, msg))) * { * // Not yet, be patient and wait some more. * sig_wait(SIG_SINGLE); @@ -151,28 +158,30 @@ * static void receiver_proc(void) * { * msg_initPort(&test_port, - * event_createSignal(proc_current(), SIGF_EXAMPLE); + * event_createSignal(proc_current(), SIG_EXAMPLE); * - * proc_new(sender_proc, (iptr_t)&test_port, - * sender_stack, sizeof(sender_stack); + * proc_new(sender_proc, NULL,sizeof(sender_stack), sender_stack); * * for (;;) * { - * sigmask_t sigs = sig_wait(SIGF_EXAMPLE | more_signals); + * sigmask_t sigs = sig_wait(SIG_EXAMPLE | more_signals); * - * if (sigs & SIGF_EXAMPLE) + * if (sigs & SIG_EXAMPLE) * { * TestMsg *emsg; - * while (emsg = (TestMsg *)msg_get(&test_port) + * while((emsg = containerof(msg_get(&test_port), TestMsg, msg))) * { * // Do something with the message * emsg->result = emsg->x + emsg->y; - * msg_reply((Msg *)msg); + * msg_reply(emsg->msg); * } * } * } * } * \endcode + * + * $WIZ$ module_name = "msg" + * $WIZ$ module_depends = "event", "signal", "kernel" */ @@ -180,7 +189,7 @@ #define KERN_MSG_H #include -#include +#include #include typedef struct MsgPort @@ -282,4 +291,8 @@ INLINE void msg_reply(Msg *msg) msg_put(msg->replyPort, msg); } +int msg_testRun(void); +int msg_testSetup(void); +int msg_testTearDown(void); + #endif /* KERN_MSG_H */