diff options
| -rw-r--r-- | generic/tcl.decls | 4 | ||||
| -rw-r--r-- | generic/tclDecls.h | 10 | ||||
| -rw-r--r-- | generic/tclStubInit.c | 2 | ||||
| -rw-r--r-- | generic/tclZlib.c | 61 |
4 files changed, 59 insertions, 18 deletions
diff --git a/generic/tcl.decls b/generic/tcl.decls index afeae51..36e92fa 100644 --- a/generic/tcl.decls +++ b/generic/tcl.decls @@ -2318,8 +2318,10 @@ declare 629 { int Tcl_FSUnloadFile(Tcl_Interp *interp, Tcl_LoadHandle handlePtr) } +# TIP #400 declare 630 { - void* Tcl_ZlibStreamGetZstreamp(Tcl_ZlibStream zshandle) + void Tcl_ZlibStreamSetCompressionDictionary(Tcl_ZlibStream zhandle, + Tcl_Obj *compressionDictionaryObj) } # ----- BASELINE -- FOR -- 8.6.0 ----- # diff --git a/generic/tclDecls.h b/generic/tclDecls.h index 0c1dedf..7c3e1de 100644 --- a/generic/tclDecls.h +++ b/generic/tclDecls.h @@ -1808,7 +1808,9 @@ EXTERN void * Tcl_FindSymbol(Tcl_Interp *interp, EXTERN int Tcl_FSUnloadFile(Tcl_Interp *interp, Tcl_LoadHandle handlePtr); /* 630 */ -EXTERN void* Tcl_ZlibStreamGetZstreamp(Tcl_ZlibStream zshandle); +EXTERN void Tcl_ZlibStreamSetCompressionDictionary( + Tcl_ZlibStream zhandle, + Tcl_Obj *compressionDictionaryObj); typedef struct TclStubHooks { const struct TclPlatStubs *tclPlatStubs; @@ -2474,7 +2476,7 @@ typedef struct TclStubs { int (*tcl_LoadFile) (Tcl_Interp *interp, Tcl_Obj *pathPtr, const char *const symv[], int flags, void *procPtrs, Tcl_LoadHandle *handlePtr); /* 627 */ void * (*tcl_FindSymbol) (Tcl_Interp *interp, Tcl_LoadHandle handle, const char *symbol); /* 628 */ int (*tcl_FSUnloadFile) (Tcl_Interp *interp, Tcl_LoadHandle handlePtr); /* 629 */ - void* (*tcl_ZlibStreamGetZstreamp) (Tcl_ZlibStream zshandle); /* 630 */ + void (*tcl_ZlibStreamSetCompressionDictionary) (Tcl_ZlibStream zhandle, Tcl_Obj *compressionDictionaryObj); /* 630 */ } TclStubs; #ifdef __cplusplus @@ -3767,8 +3769,8 @@ extern const TclStubs *tclStubsPtr; (tclStubsPtr->tcl_FindSymbol) /* 628 */ #define Tcl_FSUnloadFile \ (tclStubsPtr->tcl_FSUnloadFile) /* 629 */ -#define Tcl_ZlibStreamGetZstreamp \ - (tclStubsPtr->tcl_ZlibStreamGetZstreamp) /* 630 */ +#define Tcl_ZlibStreamSetCompressionDictionary \ + (tclStubsPtr->tcl_ZlibStreamSetCompressionDictionary) /* 630 */ #endif /* defined(USE_TCL_STUBS) */ diff --git a/generic/tclStubInit.c b/generic/tclStubInit.c index a74101d..7fb0f1c 100644 --- a/generic/tclStubInit.c +++ b/generic/tclStubInit.c @@ -1340,7 +1340,7 @@ const TclStubs tclStubs = { Tcl_LoadFile, /* 627 */ Tcl_FindSymbol, /* 628 */ Tcl_FSUnloadFile, /* 629 */ - Tcl_ZlibStreamGetZstreamp, /* 630 */ + Tcl_ZlibStreamSetCompressionDictionary, /* 630 */ }; /* !END!: Do not edit above this line. */ diff --git a/generic/tclZlib.c b/generic/tclZlib.c index 96cda4e..7785dea 100644 --- a/generic/tclZlib.c +++ b/generic/tclZlib.c @@ -67,10 +67,15 @@ typedef struct { Tcl_Obj *compDictObj; /* Byte-array object containing compression * dictionary (not dictObj!) to use if * necessary. */ + int flags; /* Miscellaneous flag bits. */ GzipHeader *gzHeaderPtr; /* If we've allocated a gzip header * structure. */ } ZlibStreamHandle; +#define DICT_TO_SET 0x1 /* If we need to set a compression dictionary + * in the low-level engine at the next + * opportunity. */ + /* * Structure used for stacked channel compression and decompression. */ @@ -606,6 +611,7 @@ Tcl_ZlibStreamInit( zshPtr->currentInput = NULL; zshPtr->streamEnd = 0; zshPtr->compDictObj = NULL; + zshPtr->flags = 0; zshPtr->gzHeaderPtr = gzHeaderPtr; memset(&zshPtr->stream, 0, sizeof(z_stream)); @@ -974,22 +980,32 @@ Tcl_ZlibStreamChecksum( /* *---------------------------------------------------------------------- * - * Tcl_ZlibStreamGetZstreamp -- + * Tcl_ZlibStreamSetCompressionDictionary -- * - * Return the z_streamp for the stream (though not typed as such, so as - * to avoid type interface poisoning). Shouldn't be used to poke around - * excessively. + * Sets the compression dictionary for a stream. This will be used as + * appropriate for the next compression or decompression action performed + * on the stream. * *---------------------------------------------------------------------- */ -void * -Tcl_ZlibStreamGetZstreamp( - Tcl_ZlibStream zshandle) +void +Tcl_ZlibStreamSetCompressionDictionary( + Tcl_ZlibStream zhandle, + Tcl_Obj *compressionDictionaryObj) { ZlibStreamHandle *zshPtr = (ZlibStreamHandle *) zshandle; - return &zshPtr->stream; + if (compressionDictionaryObj != NULL) { + Tcl_IncrRefCount(compressionDictionaryObj); + zshPtr->flags |= DICT_TO_SET; + } else { + zshPtr->flags &= ~DICT_TO_SET; + } + if (zshPtr->compDictObj != NULL) { + Tcl_DecrRefCount(zshPtr->compDictObj); + } + zshPtr->compDictObj = compressionDictionaryObj; } /* @@ -1028,6 +1044,17 @@ Tcl_ZlibStreamPut( zshPtr->stream.next_in = Tcl_GetByteArrayFromObj(data, &size); zshPtr->stream.avail_in = size; + if (zshPtr->flags & DICT_TO_SET) { + e = SetDeflateDictionary(&zshPtr->stream, zshPtr->compDictObj); + if (e != Z_OK) { + if (zshPtr->interp) { + ConvertError(zshPtr->interp, e); + } + return TCL_ERROR; + } + zshPtr->flags &= ~DICT_TO_SET; + } + /* * Deflatebound doesn't seem to take various header sizes into * account, so we add 100 extra bytes. @@ -1065,6 +1092,12 @@ Tcl_ZlibStreamPut( e = deflate(&zshPtr->stream, flush); } + if (e != Z_OK) { + if (zshPtr->interp) { + ConvertError(zshPtr->interp, e); + } + return TCL_ERROR; + } /* * And append the final data block. @@ -3345,11 +3378,15 @@ Tcl_ZlibAdler32( return 0; } -void * -Tcl_ZlibStreamGetZstreamp( - Tcl_ZlibStream zshandle) +int +Tcl_ZlibStreamSetCompressionDictionary( + Tcl_Interp *interp, + Tcl_ZlibStream zhandle, + Tcl_Obj *compressionDictionaryObj) { - return NULL; + Tcl_SetResult(interp, "unimplemented", TCL_STATIC); + Tcl_SetErrorCode(interp, "TCL", "UNIMPLEMENTED", NULL); + return TCL_ERROR; } #endif /* HAVE_ZLIB */ |