Alexandre Julliard : ntdll: Use a pthread mutex for the mount info section.
Alexandre Julliard
julliard at winehq.org
Mon Jul 13 16:08:50 CDT 2020
Module: wine
Branch: master
Commit: 3b745f17b5553f88011a50a7b355f0eb3f5084b9
URL: https://source.winehq.org/git/wine.git/?a=commit;h=3b745f17b5553f88011a50a7b355f0eb3f5084b9
Author: Alexandre Julliard <julliard at winehq.org>
Date: Mon Jul 13 18:44:47 2020 +0200
ntdll: Use a pthread mutex for the mount info section.
Signed-off-by: Alexandre Julliard <julliard at winehq.org>
---
dlls/ntdll/unix/file.c | 27 ++++++++++++++-------------
1 file changed, 14 insertions(+), 13 deletions(-)
diff --git a/dlls/ntdll/unix/file.c b/dlls/ntdll/unix/file.c
index 3368d2105c..c5ffd0166d 100644
--- a/dlls/ntdll/unix/file.c
+++ b/dlls/ntdll/unix/file.c
@@ -249,6 +249,7 @@ static RTL_CRITICAL_SECTION_DEBUG critsect_debug =
};
static RTL_CRITICAL_SECTION dir_section = { &critsect_debug, -1, 0, 0, 0, 0 };
+static pthread_mutex_t mnt_mutex = PTHREAD_MUTEX_INITIALIZER;
/* check if a given Unicode char is OK in a DOS short name */
static inline BOOL is_invalid_dos_char( WCHAR ch )
@@ -567,7 +568,7 @@ static inline char *get_field( char **str )
*
* getmntent replacement for Android.
*
- * NB returned static buffer is not thread safe; protect with dir_section.
+ * NB returned static buffer is not thread safe; protect with mnt_mutex.
*/
static struct mntent *getmntent_replacement( FILE *f )
{
@@ -775,7 +776,7 @@ static char *get_default_drive_device( const char *root )
if (res == -1) res = stat( root, &st );
if (res == -1) return NULL;
- RtlEnterCriticalSection( &dir_section );
+ pthread_mutex_lock( &mnt_mutex );
#ifdef __ANDROID__
if ((f = fopen( "/proc/mounts", "r" )))
@@ -801,7 +802,7 @@ static char *get_default_drive_device( const char *root )
ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(device) + 1 );
if (ret) strcpy( ret, device );
}
- RtlLeaveCriticalSection( &dir_section );
+ pthread_mutex_unlock( &mnt_mutex );
#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__ ) || defined(__DragonFly__)
char *device = NULL;
@@ -818,7 +819,7 @@ static char *get_default_drive_device( const char *root )
if (res == -1) res = stat( root, &st );
if (res == -1) return NULL;
- RtlEnterCriticalSection( &dir_section );
+ pthread_mutex_lock( &mnt_mutex );
/* The FreeBSD parse_mount_entries doesn't require a file argument, so just
* pass NULL. Leave the argument in for symmetry.
@@ -829,7 +830,7 @@ static char *get_default_drive_device( const char *root )
ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(device) + 1 );
if (ret) strcpy( ret, device );
}
- RtlLeaveCriticalSection( &dir_section );
+ pthread_mutex_unlock( &mnt_mutex );
#elif defined( sun )
FILE *f;
@@ -847,7 +848,7 @@ static char *get_default_drive_device( const char *root )
if (res == -1) res = stat( root, &st );
if (res == -1) return NULL;
- RtlEnterCriticalSection( &dir_section );
+ pthread_mutex_lock( &mnt_mutex );
if ((f = fopen( "/etc/mnttab", "r" )))
{
@@ -865,7 +866,7 @@ static char *get_default_drive_device( const char *root )
ret = RtlAllocateHeap( GetProcessHeap(), 0, strlen(device) + 1 );
if (ret) strcpy( ret, device );
}
- RtlLeaveCriticalSection( &dir_section );
+ pthread_mutex_unlock( &mnt_mutex );
#elif defined(__APPLE__)
struct statfs *mntStat;
@@ -883,7 +884,7 @@ static char *get_default_drive_device( const char *root )
dev = st.st_dev;
ino = st.st_ino;
- RtlEnterCriticalSection( &dir_section );
+ pthread_mutex_lock( &mnt_mutex );
mntSize = getmntinfo(&mntStat, MNT_NOWAIT);
@@ -904,7 +905,7 @@ static char *get_default_drive_device( const char *root )
}
}
}
- RtlLeaveCriticalSection( &dir_section );
+ pthread_mutex_unlock( &mnt_mutex );
#else
static int warned;
if (!warned++) FIXME( "auto detection of DOS devices not supported on this platform\n" );
@@ -925,7 +926,7 @@ static char *get_device_mount_point( dev_t dev )
#ifdef linux
FILE *f;
- RtlEnterCriticalSection( &dir_section );
+ pthread_mutex_lock( &mnt_mutex );
#ifdef __ANDROID__
if ((f = fopen( "/proc/mounts", "r" )))
@@ -973,13 +974,13 @@ static char *get_device_mount_point( dev_t dev )
}
fclose( f );
}
- RtlLeaveCriticalSection( &dir_section );
+ pthread_mutex_unlock( &mnt_mutex );
#elif defined(__APPLE__)
struct statfs *entry;
struct stat st;
int i, size;
- RtlEnterCriticalSection( &dir_section );
+ pthread_mutex_lock( &mnt_mutex );
size = getmntinfo( &entry, MNT_NOWAIT );
for (i = 0; i < size; i++)
@@ -992,7 +993,7 @@ static char *get_device_mount_point( dev_t dev )
break;
}
}
- RtlLeaveCriticalSection( &dir_section );
+ pthread_mutex_unlock( &mnt_mutex );
#else
static int warned;
if (!warned++) FIXME( "unmounting devices not supported on this platform\n" );
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