Merge pull request #4531 from whj4674672/pipe

pipe name depend on RT_NAME_MAX

components/drivers/src/pipe.c

@@ -320,7 +320,7 @@ static const struct dfs_file_ops pipe_fops =
 };
 #endif /* end of RT_USING_POSIX */
 
-rt_err_t  rt_pipe_open (rt_device_t device, rt_uint16_t oflag)
+rt_err_t  rt_pipe_open(rt_device_t device, rt_uint16_t oflag)
 {
     rt_pipe_t *pipe = (rt_pipe_t *)device;
     rt_err_t ret = RT_EOK;
@@ -348,7 +348,7 @@ __exit:
     return ret;
 }
 
-rt_err_t  rt_pipe_close  (rt_device_t device)
+rt_err_t  rt_pipe_close(rt_device_t device)
 {
     rt_pipe_t *pipe = (rt_pipe_t *)device;
 
@@ -366,7 +366,7 @@ rt_err_t  rt_pipe_close  (rt_device_t device)
     return RT_EOK;
 }
 
-rt_size_t rt_pipe_read   (rt_device_t device, rt_off_t pos, void *buffer, rt_size_t count)
+rt_size_t rt_pipe_read(rt_device_t device, rt_off_t pos, void *buffer, rt_size_t count)
 {
     uint8_t *pbuf;
     rt_size_t read_bytes = 0;
@@ -394,7 +394,7 @@ rt_size_t rt_pipe_read   (rt_device_t device, rt_off_t pos, void *buffer, rt_siz
     return read_bytes;
 }
 
-rt_size_t rt_pipe_write  (rt_device_t device, rt_off_t pos, const void *buffer, rt_size_t count)
+rt_size_t rt_pipe_write(rt_device_t device, rt_off_t pos, const void *buffer, rt_size_t count)
 {
     uint8_t *pbuf;
     rt_size_t write_bytes = 0;
@@ -531,8 +531,8 @@ int rt_pipe_delete(const char *name)
 int pipe(int fildes[2])
 {
     rt_pipe_t *pipe;
-    char dname[8];
-    char dev_name[32];
+    char dname[RT_NAME_MAX];
+    char dev_name[RT_NAME_MAX * 4];
     static int pipeno = 0;
 
     rt_snprintf(dname, sizeof(dname), "pipe%d", pipeno++);