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fix: 修复ffconf.h中宏FF_FS_LOCK设置不合理的问题

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方案描述：
1、修改FF_FS_LOCK宏定义为：#define FF_FS_LOCK  (CONFIG_NFILE_DESCRIPTORS + LOSCFG_MAX_OPEN_DIRS - MIN_START_FD)
2、其中各个宏的含义如下：
2.1、CONFIG_NFILE_DESCRIPTORS 在vfs_config.h文件中定义，表示打开文件描述符fd的最大数量
2.2、LOSCFG_MAX_OPEN_DIRS 在vfs_config.h文件中定义，表示打开目录最大数量
2.3、MIN_START_FD 在vfs_config.h文件中定义，表示保留的三个文件描述符fd：stdin,stdout,stderr

BREAKING CHANGE：
修复ffconf.h中宏FF_FS_LOCK设置不合理的问题
修改后的FF_FS_LOCK宏定义为：#define FF_FS_LOCK	(CONFIG_NFILE_DESCRIPTORS + LOSCFG_MAX_OPEN_DIRS - MIN_START_FD)

Close: #I663SZ

Signed-off-by: zhangdengyu <zhangdengyu2@huawei.com>
Change-Id: I5389e57d4276e99d40c79cb5a449c6e5a1f1179e
This commit is contained in:
zhangdengyu
2022-12-14 10:26:32 +08:00
parent c4e4e238b0
commit 4d8e88ab30
1 changed files with 2 additions and 1 deletions
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source/ffconf.h
+2 -1
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@@ -10,6 +10,7 @@
#include "los_config.h"
#else
#include "fs_config.h"
#include "vfs_config.h"
#endif
#ifdef __cplusplus
@@ -315,7 +316,7 @@ enum STORAGE {
#ifndef __LITEOS_M__
#define FF_FS_LOCK CONFIG_NFILE_DESCRIPTORS
#else
#define FF_FS_LOCK 64
#define FF_FS_LOCK (CONFIG_NFILE_DESCRIPTORS + LOSCFG_MAX_OPEN_DIRS - MIN_START_FD)
#endif
/* The option FF_FS_LOCK switches file lock function to control duplicated file open
/ and illegal operation to open objects. This option must be 0 when FF_FS_READONLY