169 lines
3.4 KiB
Plaintext
169 lines
3.4 KiB
Plaintext
#include "EXTERN.h"
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#include "perl.h"
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#include "XSUB.h"
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#include <ndbm.h>
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typedef struct {
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DBM * dbp ;
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SV * filter_fetch_key ;
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SV * filter_store_key ;
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SV * filter_fetch_value ;
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SV * filter_store_value ;
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int filtering ;
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} NDBM_File_type;
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typedef NDBM_File_type * NDBM_File ;
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typedef datum datum_key ;
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typedef datum datum_value ;
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#define ckFilter(arg,type,name) \
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if (db->type) { \
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SV * save_defsv ; \
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/* printf("filtering %s\n", name) ;*/ \
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if (db->filtering) \
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croak("recursion detected in %s", name) ; \
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db->filtering = TRUE ; \
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save_defsv = newSVsv(DEFSV) ; \
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sv_setsv(DEFSV, arg) ; \
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PUSHMARK(sp) ; \
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(void) perl_call_sv(db->type, G_DISCARD|G_NOARGS); \
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sv_setsv(arg, DEFSV) ; \
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sv_setsv(DEFSV, save_defsv) ; \
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SvREFCNT_dec(save_defsv) ; \
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db->filtering = FALSE ; \
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/*printf("end of filtering %s\n", name) ;*/ \
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}
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MODULE = NDBM_File PACKAGE = NDBM_File PREFIX = ndbm_
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NDBM_File
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ndbm_TIEHASH(dbtype, filename, flags, mode)
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char * dbtype
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char * filename
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int flags
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int mode
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CODE:
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{
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DBM * dbp ;
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RETVAL = NULL ;
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if (dbp = dbm_open(filename, flags, mode)) {
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RETVAL = (NDBM_File)safemalloc(sizeof(NDBM_File_type)) ;
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Zero(RETVAL, 1, NDBM_File_type) ;
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RETVAL->dbp = dbp ;
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}
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}
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OUTPUT:
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RETVAL
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void
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ndbm_DESTROY(db)
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NDBM_File db
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CODE:
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dbm_close(db->dbp);
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safefree(db);
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#define ndbm_FETCH(db,key) dbm_fetch(db->dbp,key)
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datum_value
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ndbm_FETCH(db, key)
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NDBM_File db
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datum_key key
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#define ndbm_STORE(db,key,value,flags) dbm_store(db->dbp,key,value,flags)
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int
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ndbm_STORE(db, key, value, flags = DBM_REPLACE)
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NDBM_File db
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datum_key key
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datum_value value
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int flags
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CLEANUP:
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if (RETVAL) {
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if (RETVAL < 0 && errno == EPERM)
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croak("No write permission to ndbm file");
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croak("ndbm store returned %d, errno %d, key \"%s\"",
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RETVAL,errno,key.dptr);
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dbm_clearerr(db->dbp);
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}
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#define ndbm_DELETE(db,key) dbm_delete(db->dbp,key)
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int
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ndbm_DELETE(db, key)
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NDBM_File db
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datum_key key
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#define ndbm_FIRSTKEY(db) dbm_firstkey(db->dbp)
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datum_key
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ndbm_FIRSTKEY(db)
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NDBM_File db
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#define ndbm_NEXTKEY(db,key) dbm_nextkey(db->dbp)
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datum_key
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ndbm_NEXTKEY(db, key)
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NDBM_File db
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datum_key key
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#define ndbm_error(db) dbm_error(db->dbp)
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int
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ndbm_error(db)
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NDBM_File db
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#define ndbm_clearerr(db) dbm_clearerr(db->dbp)
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void
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ndbm_clearerr(db)
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NDBM_File db
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#define setFilter(type) \
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{ \
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if (db->type) \
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RETVAL = sv_mortalcopy(db->type) ; \
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ST(0) = RETVAL ; \
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if (db->type && (code == &PL_sv_undef)) { \
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SvREFCNT_dec(db->type) ; \
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db->type = NULL ; \
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} \
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else if (code) { \
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if (db->type) \
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sv_setsv(db->type, code) ; \
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else \
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db->type = newSVsv(code) ; \
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} \
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}
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SV *
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filter_fetch_key(db, code)
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NDBM_File db
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SV * code
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SV * RETVAL = &PL_sv_undef ;
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CODE:
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setFilter(filter_fetch_key) ;
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SV *
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filter_store_key(db, code)
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NDBM_File db
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SV * code
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SV * RETVAL = &PL_sv_undef ;
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CODE:
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setFilter(filter_store_key) ;
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SV *
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filter_fetch_value(db, code)
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NDBM_File db
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SV * code
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SV * RETVAL = &PL_sv_undef ;
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CODE:
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setFilter(filter_fetch_value) ;
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SV *
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filter_store_value(db, code)
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NDBM_File db
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SV * code
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SV * RETVAL = &PL_sv_undef ;
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CODE:
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setFilter(filter_store_value) ;
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