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https://github.com/s3fs-fuse/s3fs-fuse.git
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99 lines
2.8 KiB
C
99 lines
2.8 KiB
C
/*
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* s3fs - FUSE-based file system backed by Amazon S3
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*
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* Copyright 2007-2008 Randy Rizun <rrizun@gmail.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef S3FS_S3_H_
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#define S3FS_S3_H_
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#define FUSE_USE_VERSION 26
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#define FIVE_GB 5368709120LL
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#include <fuse.h>
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#define S3FS_FUSE_EXIT() { \
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struct fuse_context* pcxt = fuse_get_context(); \
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if(pcxt){ \
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fuse_exit(pcxt->fuse); \
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} \
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}
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//
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// s3fs use many small allocated chunk in heap area for
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// stats cache and parsing xml, etc. The OS may decide
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// that giving this little memory back to the kernel
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// will cause too much overhead and delay the operation.
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// So s3fs calls malloc_trim function to really get the
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// memory back. Following macros is prepared for that
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// your system does not have it.
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//
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// Address of gratitude, this workaround quotes a document
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// of libxml2.
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// http://xmlsoft.org/xmlmem.html
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//
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#ifdef HAVE_MALLOC_TRIM
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#include <malloc.h>
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#define DISPWARN_MALLOCTRIM(str)
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#define S3FS_MALLOCTRIM(pad) malloc_trim(pad)
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#define S3FS_XMLFREEDOC(doc) \
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{ \
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xmlFreeDoc(doc); \
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S3FS_MALLOCTRIM(0); \
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}
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#define S3FS_XMLFREE(ptr) \
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{ \
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xmlFree(ptr); \
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S3FS_MALLOCTRIM(0); \
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}
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#define S3FS_XMLXPATHFREECONTEXT(ctx) \
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{ \
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xmlXPathFreeContext(ctx); \
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S3FS_MALLOCTRIM(0); \
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}
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#define S3FS_XMLXPATHFREEOBJECT(obj) \
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{ \
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xmlXPathFreeObject(obj); \
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S3FS_MALLOCTRIM(0); \
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}
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#else // HAVE_MALLOC_TRIM
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#define DISPWARN_MALLOCTRIM(str) \
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fprintf(stderr, "Warning: %s without malloc_trim is possibility of the use memory increase.\n", program_name.c_str())
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#define S3FS_MALLOCTRIM(pad)
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#define S3FS_XMLFREEDOC(doc) xmlFreeDoc(doc)
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#define S3FS_XMLFREE(ptr) xmlFree(ptr)
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#define S3FS_XMLXPATHFREECONTEXT(ctx) xmlXPathFreeContext(ctx)
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#define S3FS_XMLXPATHFREEOBJECT(obj) xmlXPathFreeObject(obj)
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#endif // HAVE_MALLOC_TRIM
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char* get_object_sseckey_md5(const char* path);
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#endif // S3FS_S3_H_
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/*
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* Local variables:
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* tab-width: 4
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* c-basic-offset: 4
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* End:
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* vim600: noet sw=4 ts=4 fdm=marker
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* vim<600: noet sw=4 ts=4
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*/
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