mercurial/cffi/osutilbuild.py
author Manuel Jacob <me@manueljacob.de>
Sun, 17 Nov 2019 19:55:01 +0100
branchstable
changeset 43432 53607fd3ec6c
parent 43077 687b865b95ad
child 48966 6000f5b25c9b
permissions -rw-r--r--
cffi: fix build on Python 3 CFFI expects the arguments to be of type str, which means that the string literals should not have the `b` prefix.
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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(
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    "mercurial.cffi._osutil",
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    """
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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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""",
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    include_dirs=['mercurial'],
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)
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ffi.cdef(
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    '''
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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 int ... off_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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    off_t             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 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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)
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if __name__ == '__main__':
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    ffi.compile()