93 lines
2.7 KiB
C
93 lines
2.7 KiB
C
/*
|
|
* s3fs - FUSE-based file system backed by Amazon S3
|
|
*
|
|
* Copyright(C) 2007 Randy Rizun <rrizun@gmail.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#ifndef S3FS_S3FS_H_
|
|
#define S3FS_S3FS_H_
|
|
|
|
#define FUSE_USE_VERSION 26
|
|
|
|
#include <fuse.h>
|
|
|
|
#define S3FS_FUSE_EXIT() \
|
|
do{ \
|
|
struct fuse_context* pcxt = fuse_get_context(); \
|
|
if(pcxt){ \
|
|
fuse_exit(pcxt->fuse); \
|
|
} \
|
|
}while(0)
|
|
|
|
// [NOTE]
|
|
// s3fs use many small allocated chunk in heap area for stats
|
|
// cache and parsing xml, etc. The OS may decide that giving
|
|
// this little memory back to the kernel will cause too much
|
|
// overhead and delay the operation.
|
|
// Address of gratitude, this workaround quotes a document of
|
|
// libxml2.( http://xmlsoft.org/xmlmem.html )
|
|
//
|
|
// When valgrind is used to test memory leak of s3fs, a large
|
|
// amount of chunk may be reported. You can check the memory
|
|
// release accurately by defining the S3FS_MALLOC_TRIM flag
|
|
// and building it. Also, when executing s3fs, you can define
|
|
// the MMAP_THRESHOLD environment variable and check more
|
|
// accurate memory leak.( see, man 3 free )
|
|
//
|
|
#ifdef S3FS_MALLOC_TRIM
|
|
#ifdef HAVE_MALLOC_TRIM
|
|
#include <malloc.h>
|
|
#define S3FS_MALLOCTRIM(pad) malloc_trim(pad)
|
|
#else // HAVE_MALLOC_TRIM
|
|
#define S3FS_MALLOCTRIM(pad)
|
|
#endif // HAVE_MALLOC_TRIM
|
|
#else // S3FS_MALLOC_TRIM
|
|
#define S3FS_MALLOCTRIM(pad)
|
|
#endif // S3FS_MALLOC_TRIM
|
|
|
|
#define S3FS_XMLFREEDOC(doc) \
|
|
do{ \
|
|
xmlFreeDoc(doc); \
|
|
S3FS_MALLOCTRIM(0); \
|
|
}while(0)
|
|
#define S3FS_XMLFREE(ptr) \
|
|
do{ \
|
|
xmlFree(ptr); \
|
|
S3FS_MALLOCTRIM(0); \
|
|
}while(0)
|
|
#define S3FS_XMLXPATHFREECONTEXT(ctx) \
|
|
do{ \
|
|
xmlXPathFreeContext(ctx); \
|
|
S3FS_MALLOCTRIM(0); \
|
|
}while(0)
|
|
#define S3FS_XMLXPATHFREEOBJECT(obj) \
|
|
do{ \
|
|
xmlXPathFreeObject(obj); \
|
|
S3FS_MALLOCTRIM(0); \
|
|
}while(0)
|
|
|
|
#endif // S3FS_S3FS_H_
|
|
|
|
/*
|
|
* Local variables:
|
|
* tab-width: 4
|
|
* c-basic-offset: 4
|
|
* End:
|
|
* vim600: expandtab sw=4 ts=4 fdm=marker
|
|
* vim<600: expandtab sw=4 ts=4
|
|
*/
|