diff options
Diffstat (limited to 'components/libc/posix/ipc/mqueue.c')
| -rw-r--r-- | components/libc/posix/ipc/mqueue.c | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/components/libc/posix/ipc/mqueue.c b/components/libc/posix/ipc/mqueue.c index 4b5905ef48..22d2854770 100644 --- a/components/libc/posix/ipc/mqueue.c +++ b/components/libc/posix/ipc/mqueue.c @@ -233,7 +233,7 @@ ssize_t mq_receive(mqd_t id, char *msg_ptr, size_t msg_len, unsigned *msg_prio) } result = rt_mq_recv(mqdes->mq, msg_ptr, msg_len, RT_WAITING_FOREVER); - if (result == RT_EOK) + if (result >= 0) return rt_strlen(msg_ptr); rt_set_errno(EBADF); @@ -288,7 +288,7 @@ ssize_t mq_timedreceive(mqd_t id, tick = rt_timespec_to_tick(abs_timeout); result = rt_mq_recv(mqdes->mq, msg_ptr, msg_len, tick); - if (result == RT_EOK) + if (result >= 0) return rt_strlen(msg_ptr); if (result == -RT_ETIMEOUT) @@ -358,19 +358,19 @@ RTM_EXPORT(mq_close); /** * @brief This function will remove a message queue (REALTIME). * - * @note The mq_unlink() function shall remove the message queue named by the string name. - * If one or more processes have the message queue open when mq_unlink() is called, - * destruction of the message queue shall be postponed until all references to the message queue have been closed. + * @note The mq_unlink() function shall remove the message queue named by the string name. + * If one or more processes have the message queue open when mq_unlink() is called, + * destruction of the message queue shall be postponed until all references to the message queue have been closed. * However, the mq_unlink() call need not block until all references have been closed; it may return immediately. - * - * After a successful call to mq_unlink(), reuse of the name shall subsequently cause mq_open() to behave as if - * no message queue of this name exists (that is, mq_open() will fail if O_CREAT is not set, + * + * After a successful call to mq_unlink(), reuse of the name shall subsequently cause mq_open() to behave as if + * no message queue of this name exists (that is, mq_open() will fail if O_CREAT is not set, * or will create a new message queue if O_CREAT is set). - * + * * @param name is the name of the message queue. * - * @return Upon successful completion, the function shall return a value of zero. - * Otherwise, the named message queue shall be unchanged by this function call, + * @return Upon successful completion, the function shall return a value of zero. + * Otherwise, the named message queue shall be unchanged by this function call, * and the function shall return a value of -1 and set errno to indicate the error. * * @warning This function can ONLY be called in the thread context, you can use RT_DEBUG_IN_THREAD_CONTEXT to @@ -384,9 +384,9 @@ RTM_EXPORT(mq_close); * The named message queue does not exist. * The mq_unlink() function may fail if: * [ENAMETOOLONG] - * The length of the name argument exceeds {_POSIX_PATH_MAX} on systems that do not support the XSI option - * or exceeds {_XOPEN_PATH_MAX} on XSI systems,or has a pathname component that is longer than {_POSIX_NAME_MAX} on systems that do - * not support the XSI option or longer than {_XOPEN_NAME_MAX} on XSI systems.A call to mq_unlink() with a name argument that contains + * The length of the name argument exceeds {_POSIX_PATH_MAX} on systems that do not support the XSI option + * or exceeds {_XOPEN_PATH_MAX} on XSI systems,or has a pathname component that is longer than {_POSIX_NAME_MAX} on systems that do + * not support the XSI option or longer than {_XOPEN_NAME_MAX} on XSI systems.A call to mq_unlink() with a name argument that contains * the same message queue name as was previously used in a successful mq_open() call shall not give an [ENAMETOOLONG] error. */ int mq_unlink(const char *name) |