ARMmbed
/
mbed-os
mirror of https://github.com/ARMmbed/mbed-os.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

Merge pull request #13549 from kjbracey-arm/readdir_r 

Make readdir reentrant
pull/13768/head
Martin Kojtal 2020-10-13 11:11:45 +01:00 committed by GitHub
parent ad40b1b267 5ab6f1cef6
commit 2cb64f5bce
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 22 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
platform/include/platform/mbed_retarget.h
View File

@ -184,11 +184,8 @@ FileHandle *mbed_override_console(int fd);
*/
FileHandle *mbed_file_handle(int fd);
}
typedef mbed::DirHandle DIR;
#else
typedef struct Dir DIR;
#endif
typedef struct DIR_impl DIR;
#endif // !MBED_CONF_PLATFORM_STDIO_MINIMAL_CONSOLE_ONLY
/* The intent of this section is to unify the errno error values to match

30
platform/source/mbed_retarget.cpp
View File

@ -46,6 +46,12 @@
static SingletonPtr<PlatformMutex> _mutex;
/* DIR is typedeffed to struct DIR_impl in header */
struct DIR_impl {
mbed::DirHandle *handle;
struct dirent entry;
};
#if defined(__ARMCC_VERSION)
# include <arm_compat.h>
# include <rt_sys.h>
@ -1297,9 +1303,15 @@ extern "C" DIR *opendir(const char *path)
return NULL;
}
DirHandle *dir;
int err = fs->open(&dir, fp.fileName());
DIR *dir = new (std::nothrow) DIR;
if (!dir) {
errno = ENOMEM;
return NULL;
}
int err = fs->open(&dir->handle, fp.fileName());
if (err < 0) {
delete dir;
errno = -err;
return NULL;
}
@ -1309,8 +1321,7 @@ extern "C" DIR *opendir(const char *path)
extern "C" struct dirent *readdir(DIR *dir)
{
static struct dirent ent;
int err = dir->read(&ent);
int err = dir->handle->read(&dir->entry);
if (err < 1) {
if (err < 0) {
errno = -err;
@ -1318,12 +1329,13 @@ extern "C" struct dirent *readdir(DIR *dir)
return NULL;
}
return &ent;
return &dir->entry;
}
extern "C" int closedir(DIR *dir)
{
int err = dir->close();
int err = dir->handle->close();
delete dir;
if (err < 0) {
errno = -err;
return -1;
@ -1334,17 +1346,17 @@ extern "C" int closedir(DIR *dir)
extern "C" void rewinddir(DIR *dir)
{
dir->rewind();
dir->handle->rewind();
}
extern "C" off_t telldir(DIR *dir)
{
return dir->tell();
return dir->handle->tell();
}
extern "C" void seekdir(DIR *dir, off_t off)
{
dir->seek(off);
dir->handle->seek(off);
}
extern "C" int mkdir(const char *path, mode_t mode)