diff options
Diffstat (limited to 'contrib/perl5/ext/SDBM_File/SDBM_File.xs')
| -rw-r--r-- | contrib/perl5/ext/SDBM_File/SDBM_File.xs | 152 |
1 files changed, 136 insertions, 16 deletions
diff --git a/contrib/perl5/ext/SDBM_File/SDBM_File.xs b/contrib/perl5/ext/SDBM_File/SDBM_File.xs index 38eaebf5c5ef..a4b90451a9bc 100644 --- a/contrib/perl5/ext/SDBM_File/SDBM_File.xs +++ b/contrib/perl5/ext/SDBM_File/SDBM_File.xs @@ -1,15 +1,47 @@ +#define PERL_NO_GET_CONTEXT #include "EXTERN.h" #include "perl.h" #include "XSUB.h" #include "sdbm/sdbm.h" -typedef DBM* SDBM_File; +typedef struct { + DBM * dbp ; + SV * filter_fetch_key ; + SV * filter_store_key ; + SV * filter_fetch_value ; + SV * filter_store_value ; + int filtering ; + } SDBM_File_type; + +typedef SDBM_File_type * SDBM_File ; +typedef datum datum_key ; +typedef datum datum_value ; + +#define ckFilter(arg,type,name) \ + if (db->type) { \ + SV * save_defsv ; \ + /* printf("filtering %s\n", name) ;*/ \ + if (db->filtering) \ + croak("recursion detected in %s", name) ; \ + db->filtering = TRUE ; \ + save_defsv = newSVsv(DEFSV) ; \ + sv_setsv(DEFSV, arg) ; \ + PUSHMARK(sp) ; \ + (void) perl_call_sv(db->type, G_DISCARD|G_NOARGS); \ + sv_setsv(arg, DEFSV) ; \ + sv_setsv(DEFSV, save_defsv) ; \ + SvREFCNT_dec(save_defsv) ; \ + db->filtering = FALSE ; \ + /*printf("end of filtering %s\n", name) ;*/ \ + } + #define sdbm_TIEHASH(dbtype,filename,flags,mode) sdbm_open(filename,flags,mode) -#define sdbm_FETCH(db,key) sdbm_fetch(db,key) -#define sdbm_STORE(db,key,value,flags) sdbm_store(db,key,value,flags) -#define sdbm_DELETE(db,key) sdbm_delete(db,key) -#define sdbm_FIRSTKEY(db) sdbm_firstkey(db) -#define sdbm_NEXTKEY(db,key) sdbm_nextkey(db) +#define sdbm_FETCH(db,key) sdbm_fetch(db->dbp,key) +#define sdbm_STORE(db,key,value,flags) sdbm_store(db->dbp,key,value,flags) +#define sdbm_DELETE(db,key) sdbm_delete(db->dbp,key) +#define sdbm_EXISTS(db,key) sdbm_exists(db->dbp,key) +#define sdbm_FIRSTKEY(db) sdbm_firstkey(db->dbp) +#define sdbm_NEXTKEY(db,key) sdbm_nextkey(db->dbp) MODULE = SDBM_File PACKAGE = SDBM_File PREFIX = sdbm_ @@ -20,23 +52,46 @@ sdbm_TIEHASH(dbtype, filename, flags, mode) char * filename int flags int mode + CODE: + { + DBM * dbp ; + + RETVAL = NULL ; + if (dbp = sdbm_open(filename,flags,mode) ) { + RETVAL = (SDBM_File)safemalloc(sizeof(SDBM_File_type)) ; + Zero(RETVAL, 1, SDBM_File_type) ; + RETVAL->dbp = dbp ; + } + + } + OUTPUT: + RETVAL void sdbm_DESTROY(db) SDBM_File db CODE: - sdbm_close(db); + sdbm_close(db->dbp); + if (db->filter_fetch_key) + SvREFCNT_dec(db->filter_fetch_key) ; + if (db->filter_store_key) + SvREFCNT_dec(db->filter_store_key) ; + if (db->filter_fetch_value) + SvREFCNT_dec(db->filter_fetch_value) ; + if (db->filter_store_value) + SvREFCNT_dec(db->filter_store_value) ; + safefree(db) ; -datum +datum_value sdbm_FETCH(db, key) SDBM_File db - datum key + datum_key key int sdbm_STORE(db, key, value, flags = DBM_REPLACE) SDBM_File db - datum key - datum value + datum_key key + datum_value value int flags CLEANUP: if (RETVAL) { @@ -44,28 +99,93 @@ sdbm_STORE(db, key, value, flags = DBM_REPLACE) croak("No write permission to sdbm file"); croak("sdbm store returned %d, errno %d, key \"%s\"", RETVAL,errno,key.dptr); - sdbm_clearerr(db); + sdbm_clearerr(db->dbp); } int sdbm_DELETE(db, key) SDBM_File db - datum key + datum_key key -datum +int +sdbm_EXISTS(db,key) + SDBM_File db + datum_key key + +datum_key sdbm_FIRSTKEY(db) SDBM_File db -datum +datum_key sdbm_NEXTKEY(db, key) SDBM_File db - datum key + datum_key key int sdbm_error(db) SDBM_File db + CODE: + RETVAL = sdbm_error(db->dbp) ; + OUTPUT: + RETVAL int sdbm_clearerr(db) SDBM_File db + CODE: + RETVAL = sdbm_clearerr(db->dbp) ; + OUTPUT: + RETVAL + + +#define setFilter(type) \ + { \ + if (db->type) \ + RETVAL = sv_mortalcopy(db->type) ; \ + ST(0) = RETVAL ; \ + if (db->type && (code == &PL_sv_undef)) { \ + SvREFCNT_dec(db->type) ; \ + db->type = NULL ; \ + } \ + else if (code) { \ + if (db->type) \ + sv_setsv(db->type, code) ; \ + else \ + db->type = newSVsv(code) ; \ + } \ + } + + + +SV * +filter_fetch_key(db, code) + SDBM_File db + SV * code + SV * RETVAL = &PL_sv_undef ; + CODE: + setFilter(filter_fetch_key) ; + +SV * +filter_store_key(db, code) + SDBM_File db + SV * code + SV * RETVAL = &PL_sv_undef ; + CODE: + setFilter(filter_store_key) ; + +SV * +filter_fetch_value(db, code) + SDBM_File db + SV * code + SV * RETVAL = &PL_sv_undef ; + CODE: + setFilter(filter_fetch_value) ; + +SV * +filter_store_value(db, code) + SDBM_File db + SV * code + SV * RETVAL = &PL_sv_undef ; + CODE: + setFilter(filter_store_value) ; |