source/lib/tdb/swig/tdb.i

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Swig interface to tdb.
   5
   6    Copyright (C) 2004,2005 Tim Potter <tpot@samba.org>
   7
   8      ** NOTE! The following LGPL license applies to the tdb
   9      ** library. This does NOT imply that all of Samba is released
  10      ** under the LGPL
  11
  12    This library is free software; you can redistribute it and/or
  13    modify it under the terms of the GNU Lesser General Public
  14    License as published by the Free Software Foundation; either
  15    version 3 of the License, or (at your option) any later version.
  16
  17    This library is distributed in the hope that it will be useful,
  18    but WITHOUT ANY WARRANTY; without even the implied warranty of
  19    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  20    Lesser General Public License for more details.
  21
  22    You should have received a copy of the GNU Lesser General Public
  23    License along with this library; if not, see <http://www.gnu.org/licenses/>.
  24 */
  25
  26 %module tdb
  27
  28 %{
  29
  30 /* This symbol is used in both includes.h and Python.h which causes an
  31    annoying compiler warning. */
  32
  33 #ifdef HAVE_FSTAT
  34 #undef HAVE_FSTAT
  35 #endif
  36
  37 #if (__GNUC__ >= 3)
  38 /** Use gcc attribute to check printf fns.  a1 is the 1-based index of
  39  * the parameter containing the format, and a2 the index of the first
  40  * argument. Note that some gcc 2.x versions don't handle this
  41  * properly **/
  42 #define PRINTF_ATTRIBUTE(a1, a2) __attribute__ ((format (__printf__, a1, a2)))
  43 #else
  44 #define PRINTF_ATTRIBUTE(a1, a2)
  45 #endif
  46
  47 /* Include tdb headers */
  48
  49 #include "lib/tdb/include/tdb.h"
  50
  51 %}
  52
  53 /* The tdb functions will crash if a NULL tdb context is passed */
  54
  55 %include exception.i
  56
  57 %typemap(check) TDB_CONTEXT* {
  58         if ($1 == NULL)
  59                 SWIG_exception(SWIG_ValueError,
  60                         "tdb context must be non-NULL");
  61 }
  62
  63 /* In and out typemaps for the TDB_DATA structure.  This is converted to
  64    and from the Python string type which can contain arbitrary binary
  65    data.. */
  66
  67 %typemap(in) TDB_DATA {
  68         if (!PyString_Check($input)) {
  69                 PyErr_SetString(PyExc_TypeError, "string arg expected");
  70                 return NULL;
  71         }
  72         $1.dsize = PyString_Size($input);
  73         $1.dptr = PyString_AsString($input);
  74 }
  75
  76 %typemap(out) TDB_DATA {
  77         if ($1.dptr == NULL && $1.dsize == 0) {
  78                 $result = Py_None;
  79         } else {
  80                 $result = PyString_FromStringAndSize($1.dptr, $1.dsize);
  81                 free($1.dptr);
  82         }
  83 }
  84
  85 /* Treat a mode_t as an unsigned integer */
  86
  87 typedef int mode_t;
  88
  89 /* flags to tdb_store() */
  90
  91 #define TDB_REPLACE 1
  92 #define TDB_INSERT 2
  93 #define TDB_MODIFY 3
  94
  95 /* flags for tdb_open() */
  96
  97 #define TDB_DEFAULT 0 /* just a readability place holder */
  98 #define TDB_CLEAR_IF_FIRST 1
  99 #define TDB_INTERNAL 2 /* don't store on disk */
 100 #define TDB_NOLOCK   4 /* don't do any locking */
 101 #define TDB_NOMMAP   8 /* don't use mmap */
 102 #define TDB_CONVERT 16 /* convert endian (internal use) */
 103 #define TDB_BIGENDIAN 32 /* header is big-endian (internal use) */
 104
 105 /* Throw an IOError exception if tdb_open() or tdb_open_ex() returns NULL */
 106
 107 %exception {
 108         $action
 109         if (result == NULL) {
 110                 PyErr_SetFromErrno(PyExc_IOError);
 111                 SWIG_fail;
 112         }
 113 }
 114
 115 TDB_CONTEXT *tdb_open(const char *name, int hash_size, int tdb_flags,
 116                       int open_flags, mode_t mode);
 117
 118 TDB_CONTEXT *tdb_open_ex(const char *name, int hash_size, int tdb_flags,
 119                          int open_flags, mode_t mode,
 120                          tdb_log_func log_fn,
 121                          tdb_hash_func hash_fn);
 122
 123 %exception;
 124
 125 int tdb_reopen(TDB_CONTEXT *tdb);
 126
 127 int tdb_reopen_all(int parent_longlived);
 128
 129 void tdb_logging_function(TDB_CONTEXT *tdb, tdb_log_func);
 130
 131 enum TDB_ERROR tdb_error(TDB_CONTEXT *tdb);
 132
 133 const char *tdb_errorstr(TDB_CONTEXT *tdb);
 134
 135 TDB_DATA tdb_fetch(TDB_CONTEXT *tdb, TDB_DATA key);
 136
 137 int tdb_delete(TDB_CONTEXT *tdb, TDB_DATA key);
 138
 139 int tdb_store(TDB_CONTEXT *tdb, TDB_DATA key, TDB_DATA dbuf, int flag = TDB_REPLACE);
 140
 141 int tdb_append(TDB_CONTEXT *tdb, TDB_DATA key, TDB_DATA new_dbuf);
 142
 143 int tdb_close(TDB_CONTEXT *tdb);
 144
 145 TDB_DATA tdb_firstkey(TDB_CONTEXT *tdb);
 146
 147 TDB_DATA tdb_nextkey(TDB_CONTEXT *tdb, TDB_DATA key);
 148
 149 int tdb_traverse(TDB_CONTEXT *tdb, tdb_traverse_func fn, void *state);
 150
 151 int tdb_exists(TDB_CONTEXT *tdb, TDB_DATA key);
 152
 153 int tdb_lockall(TDB_CONTEXT *tdb);
 154
 155 void tdb_unlockall(TDB_CONTEXT *tdb);
 156
 157 /* Low level locking functions: use with care */
 158
 159 int tdb_chainlock(TDB_CONTEXT *tdb, TDB_DATA key);
 160
 161 int tdb_chainunlock(TDB_CONTEXT *tdb, TDB_DATA key);
 162
 163 /* Debug functions. Not used in production. */
 164
 165 void tdb_dump_all(TDB_CONTEXT *tdb);
 166
 167 int tdb_printfreelist(TDB_CONTEXT *tdb);