Mercurial > hg
view mercurial/cffi/osutil.py @ 32078:bf5e13e38390 stable
pager: use less as a fallback on Unix
This seems reasonable choice per discussion, and the default-default of Git.
See also the inline-comment for why.
https://www.mercurial-scm.org/pipermail/mercurial-devel/2017-April/097042.html
author | Yuya Nishihara <yuya@tcha.org> |
---|---|
date | Fri, 28 Apr 2017 20:51:14 +0900 |
parents | 9cc438bf7d9a |
children | 857876ebaed4 |
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from __future__ import absolute_import import cffi ffi = cffi.FFI() ffi.set_source("_osutil_cffi", """ #include <sys/attr.h> #include <sys/vnode.h> #include <unistd.h> #include <fcntl.h> #include <time.h> typedef struct val_attrs { uint32_t length; attribute_set_t returned; attrreference_t name_info; fsobj_type_t obj_type; struct timespec mtime; uint32_t accessmask; off_t datalength; } __attribute__((aligned(4), packed)) val_attrs_t; """, include_dirs=['mercurial']) ffi.cdef(''' typedef uint32_t attrgroup_t; typedef struct attrlist { uint16_t bitmapcount; /* number of attr. bit sets in list */ uint16_t reserved; /* (to maintain 4-byte alignment) */ attrgroup_t commonattr; /* common attribute group */ attrgroup_t volattr; /* volume attribute group */ attrgroup_t dirattr; /* directory attribute group */ attrgroup_t fileattr; /* file attribute group */ attrgroup_t forkattr; /* fork attribute group */ ...; }; typedef struct attribute_set { ...; } attribute_set_t; typedef struct attrreference { int attr_dataoffset; int attr_length; ...; } attrreference_t; typedef int ... off_t; typedef struct val_attrs { uint32_t length; attribute_set_t returned; attrreference_t name_info; uint32_t obj_type; struct timespec mtime; uint32_t accessmask; off_t datalength; ...; } val_attrs_t; /* the exact layout of the above struct will be figured out during build time */ typedef int ... time_t; typedef struct timespec { time_t tv_sec; ...; }; int getattrlist(const char* path, struct attrlist * attrList, void * attrBuf, size_t attrBufSize, unsigned int options); int getattrlistbulk(int dirfd, struct attrlist * attrList, void * attrBuf, size_t attrBufSize, uint64_t options); #define ATTR_BIT_MAP_COUNT ... #define ATTR_CMN_NAME ... #define ATTR_CMN_OBJTYPE ... #define ATTR_CMN_MODTIME ... #define ATTR_CMN_ACCESSMASK ... #define ATTR_CMN_ERROR ... #define ATTR_CMN_RETURNED_ATTRS ... #define ATTR_FILE_DATALENGTH ... #define VREG ... #define VDIR ... #define VLNK ... #define VBLK ... #define VCHR ... #define VFIFO ... #define VSOCK ... #define S_IFMT ... int open(const char *path, int oflag, int perm); int close(int); #define O_RDONLY ... ''') if __name__ == '__main__': ffi.compile()