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add more options to filesystem mount function invoke. 

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@665 bbd45198-f89e-11dd-88c7-29a3b14d5316
This commit is contained in:
bernard.xiong 2010-04-22 09:33:25 +00:00
parent c988a222ed
commit c4a21b4456
4 changed files with 33 additions and 21 deletions
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6
components/SConscript
View File

@ -5,7 +5,11 @@ Import('rtconfig')
# build each components # build each components
objs = '' objs = ''
if 'RT_USING_MINILIBC' in dir(rtconfig) and rtconfig.RT_USING_MINILIBC: if rtconfig.CROSS_TOOL == 'gcc':
if 'RT_USING_NEWLIB' in dir(rtconfig) and rtconfig.RT_USING_NEWLIB:
objs = objs + SConscript('libc/newlib/SConscript')
else:
rtconfig.RT_USING_MINILIBC = True
objs = objs + SConscript('libc/minilibc/SConscript') objs = objs + SConscript('libc/minilibc/SConscript')
if 'RT_USING_FINSH' in dir(rtconfig) and rtconfig.RT_USING_FINSH: if 'RT_USING_FINSH' in dir(rtconfig) and rtconfig.RT_USING_FINSH:

2
components/dfs/filesystems/elmfat/dfs_elm.c
View File

@ -49,7 +49,7 @@ static int elm_result_to_dfs(FRESULT result)
return status; return status;
} }
int dfs_elm_mount(struct dfs_filesystem* fs) int dfs_elm_mount(struct dfs_filesystem* fs, unsigned long rwflag, const void* data)
{ {
FATFS *fat; FATFS *fat;
FRESULT result; FRESULT result;

2
components/dfs/include/dfs_fs.h
View File

@ -28,7 +28,7 @@ struct dfs_filesystem_operation
{ {
char name[DFS_FS_NAME_MAX + 1]; char name[DFS_FS_NAME_MAX + 1];
int (*mount) (struct dfs_filesystem* fs); int (*mount) (struct dfs_filesystem* fs, unsigned long rwflag, const void* data);
int (*unmount) (struct dfs_filesystem* fs); int (*unmount) (struct dfs_filesystem* fs);
int (*open) (struct dfs_fd* fd); int (*open) (struct dfs_fd* fd);

22
components/dfs/src/dfs_fs.c
View File

@ -206,6 +206,8 @@ int dfs_mount(const char* device_name, const char* path,
int index; int index;
/* open specific device */ /* open specific device */
if (device_name != RT_NULL)
{
dev_id = rt_device_find(device_name); dev_id = rt_device_find(device_name);
if (dev_id == RT_NULL) if (dev_id == RT_NULL)
{ {
@ -213,6 +215,12 @@ int dfs_mount(const char* device_name, const char* path,
rt_set_errno(-DFS_STATUS_ENODEV); rt_set_errno(-DFS_STATUS_ENODEV);
return -1; return -1;
} }
}
else
{
/* which is a non-device filesystem mount */
dev_id = RT_NULL;
}
/* find out specific filesystem */ /* find out specific filesystem */
dfs_lock(); dfs_lock();
@ -290,10 +298,11 @@ int dfs_mount(const char* device_name, const char* path,
dfs_unlock(); dfs_unlock();
/* open device, but do not check the status of device */ /* open device, but do not check the status of device */
rt_device_open(fs->dev_id, RT_DEVICE_OFLAG_RDWR); if (dev_id != RT_NULL) rt_device_open(fs->dev_id, RT_DEVICE_OFLAG_RDWR);
if (ops->mount == RT_NULL) /* there is no mount implementation */ if (ops->mount == RT_NULL) /* there is no mount implementation */
{ {
if (dev_id != RT_NULL) rt_device_close(dev_id);
dfs_lock(); dfs_lock();
/* clear filesystem table entry */ /* clear filesystem table entry */
rt_memset(fs, 0, sizeof(struct dfs_filesystem)); rt_memset(fs, 0, sizeof(struct dfs_filesystem));
@ -303,18 +312,17 @@ int dfs_mount(const char* device_name, const char* path,
return -1; return -1;
} }
/* call mount of this filesystem */ /* call mount of this filesystem */
else if ( ops->mount(fs) < 0 ) else if (ops->mount(fs, rwflag, data) < 0)
{ {
/* close device */
if (dev_id != RT_NULL) rt_device_close(fs->dev_id);
/* mount failed */ /* mount failed */
dfs_lock(); dfs_lock();
/* close device */
rt_device_close(fs->dev_id);
/* clear filesystem table entry */ /* clear filesystem table entry */
rt_memset(fs, 0, sizeof(struct dfs_filesystem)); rt_memset(fs, 0, sizeof(struct dfs_filesystem));
dfs_unlock(); dfs_unlock();
return -1; return -1;
} }