setup_osutil_cffi.py
author Augie Fackler <augie@google.com>
Fri, 05 Aug 2016 16:25:15 -0400
branchstable
changeset 29704 b8f9cdca8807
parent 29600 7a157639b8f2
child 29910 a043c6d372db
permissions -rw-r--r--
exchange: correctly specify url to unbundle (issue5145) This parameter is slightly confusingly named in wireproto, so it got mis-specified from the start as 'push' instead of the URL to which we are pushing. Sigh. I've got a patch for that which I'll mail separately since it's not really appropriate for stable. Fixes a regression in bundle2 from bundle1.
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from __future__ import absolute_import
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import cffi
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ffi = cffi.FFI()
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ffi.set_source("_osutil_cffi", """
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#include <sys/attr.h>
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#include <sys/vnode.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <time.h>
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typedef struct val_attrs {
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    uint32_t          length;
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    attribute_set_t   returned;
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    attrreference_t   name_info;
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    fsobj_type_t      obj_type;
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    struct timespec   mtime;
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    uint32_t          accessmask;
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    off_t             datalength;
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} __attribute__((aligned(4), packed)) val_attrs_t;
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""", include_dirs=['mercurial'])
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ffi.cdef('''
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typedef uint32_t attrgroup_t;
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typedef struct attrlist {
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    uint16_t     bitmapcount; /* number of attr. bit sets in list */
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    uint16_t   reserved;    /* (to maintain 4-byte alignment) */
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    attrgroup_t commonattr;  /* common attribute group */
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    attrgroup_t volattr;     /* volume attribute group */
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    attrgroup_t dirattr;     /* directory attribute group */
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    attrgroup_t fileattr;    /* file attribute group */
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    attrgroup_t forkattr;    /* fork attribute group */
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    ...;
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};
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typedef struct attribute_set {
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    ...;
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} attribute_set_t;
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typedef struct attrreference {
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    int attr_dataoffset;
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    int attr_length;
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    ...;
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} attrreference_t;
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typedef struct val_attrs {
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    uint32_t          length;
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    attribute_set_t   returned;
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    attrreference_t   name_info;
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    uint32_t          obj_type;
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    struct timespec   mtime;
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    uint32_t          accessmask;
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    int               datalength;
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    ...;
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} val_attrs_t;
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/* the exact layout of the above struct will be figured out during build time */
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typedef int ... time_t;
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typedef int ... off_t;
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typedef struct timespec {
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    time_t tv_sec;
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    ...;
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};
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int getattrlist(const char* path, struct attrlist * attrList, void * attrBuf,
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                size_t attrBufSize, unsigned int options);
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int getattrlistbulk(int dirfd, struct attrlist * attrList, void * attrBuf,
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                    size_t attrBufSize, uint64_t options);
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#define ATTR_BIT_MAP_COUNT ...
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#define ATTR_CMN_NAME ...
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#define ATTR_CMN_OBJTYPE ...
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#define ATTR_CMN_MODTIME ...
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#define ATTR_CMN_ACCESSMASK ...
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#define ATTR_CMN_ERROR ...
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#define ATTR_CMN_RETURNED_ATTRS ...
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#define ATTR_FILE_DATALENGTH ...
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#define VREG ...
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#define VDIR ...
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#define VLNK ...
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#define VBLK ...
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#define VCHR ...
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#define VFIFO ...
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#define VSOCK ...
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#define S_IFMT ...
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int open(const char *path, int oflag, int perm);
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int close(int);
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#define O_RDONLY ...
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''')
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if __name__ == '__main__':
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    ffi.compile()