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[components][posix] 完善 posix 接口消息队列 (#7395)

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zhkag
2023-05-05 18:14:07 +08:00
committed by GitHub
parent bc9fe6d3c8
commit a6a9b0dfcb
3 changed files with 110 additions and 46 deletions
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119
components/libc/posix/ipc/mqueue.c
View File

@@ -13,9 +13,10 @@
#include <sys/time.h>
#include <sys/errno.h>
#include <rtthread.h>
#include <limits.h>
#include "mqueue.h"
static mqd_t posix_mq_list = RT_NULL;
static mqdes_t posix_mq_list = RT_NULL;
static struct rt_semaphore posix_mq_lock;
/* initialize posix mqueue */
@@ -26,15 +27,19 @@ static int posix_mq_system_init(void)
}
INIT_COMPONENT_EXPORT(posix_mq_system_init);
rt_inline void posix_mq_insert(mqd_t pmq)
rt_inline void posix_mq_insert(mqdes_t pmq)
{
if (posix_mq_list == RT_NULL)
pmq->mq_id = 1;
else
pmq->mq_id = posix_mq_list->mq_id + 1;
pmq->next = posix_mq_list;
posix_mq_list = pmq;
}
static void posix_mq_delete(mqd_t pmq)
static void posix_mq_delete(mqdes_t pmq)
{
mqd_t iter;
mqdes_t iter;
if (posix_mq_list == pmq)
{
posix_mq_list = pmq->next;
@@ -63,9 +68,9 @@ static void posix_mq_delete(mqd_t pmq)
}
}
static mqd_t posix_mq_find(const char* name)
static mqdes_t posix_mq_find(const char *name)
{
mqd_t iter;
mqdes_t iter;
rt_object_t object;
for (iter = posix_mq_list; iter != RT_NULL; iter = iter->next)
@@ -81,12 +86,20 @@ static mqd_t posix_mq_find(const char* name)
return RT_NULL;
}
int mq_setattr(mqd_t mqdes,
static mqdes_t posix_mq_id_find(mqd_t id)
{
for (mqdes_t iter = posix_mq_list; iter != RT_NULL; iter = iter->next)
if (iter->mq_id == id)
return iter;
return RT_NULL;
}
int mq_setattr(mqd_t id,
const struct mq_attr *mqstat,
struct mq_attr *omqstat)
{
if (mqstat == RT_NULL)
return mq_getattr(mqdes, omqstat);
return mq_getattr(id, omqstat);
else
rt_set_errno(-RT_ERROR);
@@ -94,9 +107,11 @@ int mq_setattr(mqd_t mqdes,
}
RTM_EXPORT(mq_setattr);
int mq_getattr(mqd_t mqdes, struct mq_attr *mqstat)
int mq_getattr(mqd_t id, struct mq_attr *mqstat)
{
mqdes = (mqd_t)((uintptr_t)mqdes << 1);
rt_sem_take(&posix_mq_lock, RT_WAITING_FOREVER);
mqdes_t mqdes = posix_mq_id_find(id);
rt_sem_release(&posix_mq_lock);
if ((mqdes == RT_NULL) || mqstat == RT_NULL)
{
rt_set_errno(EBADF);
@@ -115,20 +130,30 @@ RTM_EXPORT(mq_getattr);
mqd_t mq_open(const char *name, int oflag, ...)
{
mqd_t mqdes;
va_list arg;
mode_t mode;
mqdes_t mqdes = RT_NULL;
struct mq_attr *attr = RT_NULL;
/* lock posix mqueue list */
rt_sem_take(&posix_mq_lock, RT_WAITING_FOREVER);
int len = rt_strlen(name);
if (len > PATH_MAX || len > NAME_MAX)
{
rt_set_errno(ENAMETOOLONG);
goto __return;
}
mqdes = RT_NULL;
/* find mqueue */
mqdes = posix_mq_find(name);
if (mqdes != RT_NULL)
{
mqdes->refcount ++; /* increase reference count */
if (oflag & O_CREAT && oflag & O_EXCL)
{
rt_set_errno(EEXIST);
rt_sem_release(&posix_mq_lock);
return (mqd_t)(-1);
}
mqdes->refcount++; /* increase reference count */
}
else if (oflag & O_CREAT)
{
@@ -139,15 +164,13 @@ mqd_t mq_open(const char *name, int oflag, ...)
attr = attr;
va_end(arg);
if (oflag & O_EXCL)
if (attr->mq_maxmsg <= 0)
{
if (posix_mq_find(name) != RT_NULL)
{
rt_set_errno(EEXIST);
goto __return;
}
rt_set_errno(EINVAL);
goto __return;
}
mqdes = (mqd_t) rt_malloc (sizeof(struct mqdes));
mqdes = (mqdes_t) rt_malloc (sizeof(struct mqdes));
if (mqdes == RT_NULL)
{
rt_set_errno(ENFILE);
@@ -175,7 +198,7 @@ mqd_t mq_open(const char *name, int oflag, ...)
}
rt_sem_release(&posix_mq_lock);
return (mqd_t)((uintptr_t)mqdes >> 1);
return (mqd_t)(mqdes->mq_id);
__return:
/* release lock */
@@ -191,13 +214,15 @@ __return:
}
rt_free(mqdes);
}
return RT_NULL;
return (mqd_t)(-1);
}
RTM_EXPORT(mq_open);
ssize_t mq_receive(mqd_t mqdes, char *msg_ptr, size_t msg_len, unsigned *msg_prio)
ssize_t mq_receive(mqd_t id, char *msg_ptr, size_t msg_len, unsigned *msg_prio)
{
mqdes = (mqd_t)((uintptr_t)mqdes << 1);
rt_sem_take(&posix_mq_lock, RT_WAITING_FOREVER);
mqdes_t mqdes = posix_mq_id_find(id);
rt_sem_release(&posix_mq_lock);
rt_err_t result;
if ((mqdes == RT_NULL) || (msg_ptr == RT_NULL))
@@ -209,16 +234,18 @@ ssize_t mq_receive(mqd_t mqdes, char *msg_ptr, size_t msg_len, unsigned *msg_pri
result = rt_mq_recv(mqdes->mq, msg_ptr, msg_len, RT_WAITING_FOREVER);
if (result == RT_EOK)
return msg_len;
return rt_strlen(msg_ptr);
rt_set_errno(EBADF);
return -1;
}
RTM_EXPORT(mq_receive);
int mq_send(mqd_t mqdes, const char *msg_ptr, size_t msg_len, unsigned msg_prio)
int mq_send(mqd_t id, const char *msg_ptr, size_t msg_len, unsigned msg_prio)
{
mqdes = (mqd_t)((uintptr_t)mqdes << 1);
rt_sem_take(&posix_mq_lock, RT_WAITING_FOREVER);
mqdes_t mqdes = posix_mq_id_find(id);
rt_sem_release(&posix_mq_lock);
rt_err_t result;
if ((mqdes == RT_NULL) || (msg_ptr == RT_NULL))
@@ -238,13 +265,15 @@ int mq_send(mqd_t mqdes, const char *msg_ptr, size_t msg_len, unsigned msg_prio)
}
RTM_EXPORT(mq_send);
ssize_t mq_timedreceive(mqd_t mqdes,
ssize_t mq_timedreceive(mqd_t id,
char *msg_ptr,
size_t msg_len,
unsigned *msg_prio,
const struct timespec *abs_timeout)
{
mqdes = (mqd_t)((uintptr_t)mqdes << 1);
rt_sem_take(&posix_mq_lock, RT_WAITING_FOREVER);
mqdes_t mqdes = posix_mq_id_find(id);
rt_sem_release(&posix_mq_lock);
int tick = 0;
rt_err_t result;
@@ -260,10 +289,12 @@ ssize_t mq_timedreceive(mqd_t mqdes,
result = rt_mq_recv(mqdes->mq, msg_ptr, msg_len, tick);
if (result == RT_EOK)
return msg_len;
return rt_strlen(msg_ptr);
if (result == -RT_ETIMEOUT)
rt_set_errno(ETIMEDOUT);
else if (result == -RT_ERROR)
rt_set_errno(EMSGSIZE);
else
rt_set_errno(EBADMSG);
@@ -271,33 +302,41 @@ ssize_t mq_timedreceive(mqd_t mqdes,
}
RTM_EXPORT(mq_timedreceive);
int mq_timedsend(mqd_t mqdes,
int mq_timedsend(mqd_t id,
const char *msg_ptr,
size_t msg_len,
unsigned msg_prio,
const struct timespec *abs_timeout)
{
/* RT-Thread does not support timed send */
return mq_send(mqdes, msg_ptr, msg_len, msg_prio);
return mq_send(id, msg_ptr, msg_len, msg_prio);
}
RTM_EXPORT(mq_timedsend);
int mq_notify(mqd_t mqdes, const struct sigevent *notification)
int mq_notify(mqd_t id, const struct sigevent *notification)
{
mqdes = (mqd_t)((uintptr_t)mqdes << 1);
rt_sem_take(&posix_mq_lock, RT_WAITING_FOREVER);
mqdes_t mqdes = posix_mq_id_find(id);
rt_sem_release(&posix_mq_lock);
if (mqdes == RT_NULL || mqdes->refcount == 0)
{
rt_set_errno(EBADF);
return -1;
}
rt_set_errno(-RT_ERROR);
return -1;
}
RTM_EXPORT(mq_notify);
int mq_close(mqd_t mqdes)
int mq_close(mqd_t id)
{
mqdes = (mqd_t)((uintptr_t)mqdes << 1);
rt_sem_take(&posix_mq_lock, RT_WAITING_FOREVER);
mqdes_t mqdes = posix_mq_id_find(id);
rt_sem_release(&posix_mq_lock);
if (mqdes == RT_NULL)
{
rt_set_errno(EINVAL);
rt_set_errno(EBADF);
return -1;
}
@@ -318,7 +357,7 @@ RTM_EXPORT(mq_close);
int mq_unlink(const char *name)
{
mqd_t pmq;
mqdes_t pmq;
/* lock posix mqueue list */
rt_sem_take(&posix_mq_lock, RT_WAITING_FOREVER);

6
components/libc/posix/ipc/mqueue.h
View File

@@ -22,10 +22,14 @@ struct mqdes
/* RT-Thread message queue */
rt_mq_t mq;
int mq_id;
/* next posix mqueue */
struct mqdes* next;
};
typedef struct mqdes* mqd_t;
typedef struct mqdes* mqdes_t;
typedef int mqd_t;
struct mq_attr
{