C++ pdc_free函数代码示例

void
pdf_add_pdflib_resource(PDF *p, const char *category, const char *resname)
{
    char *newresname;
    int newlen;
    pdc_encoding htenc;
    int htcp;

    pdf_prepare_name_string(p, resname, 0, PDC_FILENAMELEN,
                            &newresname, &newlen, &htenc, &htcp);
    if (newlen)
    {
        char *tmpresname = pdc_utf16_to_utf8(p->pdc, newresname, newlen,
                                             PDC_CONV_EBCDIC | PDC_CONV_WITHBOM,
                                             &newlen);
        pdc_free(p->pdc, newresname);
        newresname = tmpresname;
        newlen = 0;
    }

    pdc_add_resource_ext(p->pdc, category, newresname, NULL, htenc, htcp);

    if (newresname != resname)
        pdc_free(p->pdc, newresname);
}

void
pdc_fclose(pdc_file *sfp)
{
    if (sfp)
    {
        if (sfp->fp)
        {
            pdc_fclose_logg(sfp->pdc, sfp->fp);
            sfp->fp = NULL;
        }
        else if (sfp->wrmode)
        {
            if (sfp->data)
            {
                pdc_free(sfp->pdc, sfp->data);
                sfp->data = NULL;
            }
        }

        if (sfp->filename)
        {
            pdc_free(sfp->pdc, sfp->filename);
            sfp->filename = NULL;
        }

        pdc_free(sfp->pdc, sfp);
    }
}

int
pdf__delete_pvf(PDF *p, const char *filename, int reserved)
{
    pdf_virtfile  *vfile, *lastvfile = NULL;

    (void) reserved;

    /* Find virtual file in file system */
    vfile = pdf_find_pvf(p, filename, &lastvfile);
    if (vfile)
    {
        /* File exists but locked */
        if (vfile->lockcount > 0)
        {
            return pdc_undef;
        }

        /* Delete */
        if (vfile->iscopy == pdc_true)
        {
            pdc_free(p->pdc, (void *) vfile->data);
            vfile->data = NULL;
        }
        pdc_free(p->pdc, vfile->name);
        if (lastvfile)
            lastvfile->next = vfile->next;
        else
            p->filesystem = vfile->next;
        pdc_free(p->pdc, vfile);
    }

    return pdc_true;
}

void *
pdc_read_file(pdc_core *pdc, FILE *fp, pdc_off_t *o_filelen, int incore)
{
    static const char fn[] = "pdc_read_file";
    pdc_off_t filelen = 0, len = 0;
    char *content = NULL;


#if !defined(MVS) || !defined(I370)

    pdc__fseek(fp, 0, SEEK_END);
    filelen = pdc__ftell(fp);
    pdc__fseek(fp, 0, SEEK_SET);

    if (incore && filelen)
    {
        content = (char *) pdc_malloc(pdc, (size_t) (filelen + 1), fn);
        len = (pdc_off_t) pdc__fread(content, 1, (size_t) filelen, fp);

/* because pdc__ftell lies! */
filelen = len;
        if (!filelen)
        {
            pdc_free(pdc, content);
            filelen = 0;
            content = NULL;
        }
    }

#endif

    if (content) content[filelen] = 0;
    *o_filelen = filelen;
    return (void *) content;
}

static void
fnt_cleanup_font_metric(pdc_core *pdc, fnt_font_metric *metric)
{
    if (metric->name != NULL)
    {
        pdc_free(pdc, metric->name);
        metric->name = NULL;
    }

    if (metric->widths != NULL)
    {
        pdc_free(pdc, metric->widths);
        metric->widths = NULL;
    }

    if (metric->ciw != NULL)
    {
        pdc_free(pdc, metric->ciw);
        metric->ciw = NULL;
    }

    if (metric->glw != NULL)
    {
        pdc_free(pdc, metric->glw);
        metric->glw = NULL;
    }


}

static void
pdc_delete_optvalue(pdc_core *pdc, pdc_resopt *resopt)
{
    if (resopt->val && !(resopt->flags & PDC_OPT_SAVEALL))
    {
        int j;
        int ja = (resopt->flags & PDC_OPT_SAVE1ELEM) ? 1 : 0;

        if (resopt->defopt->type == pdc_stringlist)
        {
            char **s = (char **) resopt->val;
            for (j = ja; j < resopt->num; j++)
                if (s[j] != NULL)
                    pdc_free(pdc, s[j]);
        }
        else if (resopt->defopt->type == pdc_polylinelist)
        {
            pdc_polyline *pl = (pdc_polyline *) resopt->val;
            for (j = ja; j < resopt->num; j++)
                if (pl[j].p != NULL)
                    pdc_free(pdc, pl[j].p);
        }
        pdc_free(pdc, resopt->val);
        resopt->val = NULL;
    }
    if (resopt->origval && !(resopt->flags & PDC_OPT_SAVEORIG))
    {
        pdc_free(pdc, resopt->origval);
        resopt->origval = NULL;
    }
    resopt->num = 0;
}

void
pdc_cleanup_optstringlist(pdc_core *pdc, char **stringlist, int ns)
{
    int j;

    for (j = 0; j < ns; j++)
    {
        if (stringlist[j] != NULL)
            pdc_free(pdc, stringlist[j]);
    }
    pdc_free(pdc, stringlist);
}

void
fnt_cleanup_fontimg(pdc_core *pdc, fnt_font *font)
{
    if (font->img != NULL && font->imgname == NULL)
    {
        pdc_free(pdc, font->img);
        font->img = NULL;
    }

    if (font->imgname != NULL)
    {
        pdc_free(pdc, font->imgname);
        font->imgname = NULL;
    }
}

/*
 * pdc_convert_filename_ext converts a file name as string of name type
 * (see function pdc_convert_name) to a [EBCDIC-]UTF-8 string with or
 * without a BOM. If the compiler doesn't allow Unicode filenames
 * (see define PDC_UNICODE_FILENAME) the filename is Latin-1 encoded
 * if possible or an exception will be thrown.
 *
 */
const char *
pdc_convert_filename_ext(pdc_core *pdc, const char *filename, int len,
                         const char *paramname, pdc_encoding enc, int codepage,
                         int flags)
{
    char *fname = NULL;
    const char *outfilename = NULL;
    int i = 0;

    if (filename == NULL)
        pdc_error(pdc, PDC_E_ILLARG_EMPTY, paramname, 0, 0, 0);

    fname = pdc_convert_name_ext(pdc, filename, len, enc, codepage, flags);

    if (fname == NULL || *fname == '\0')
        pdc_error(pdc, PDC_E_ILLARG_EMPTY, paramname, 0, 0, 0);

    if (pdc_is_utf8_bytecode(fname))
    {
#if defined(PDC_UNICODE_FILENAME)
        i = 3;
#else
        fname = pdc_check_filename(pdc, fname);
#endif
    }

    outfilename = pdc_errprintf(pdc, "%s", &fname[i]);
    pdc_free(pdc, fname);

    return outfilename;
}

void
pdf__delete(PDF *p)
{
    /*
     * Close the output stream, because it could be open
     */
    pdc_close_output(p->out);

    /*
     * Clean up page-related stuff if necessary. Do not raise
     * an error here since we may be called from the error handler.
     */
    pdf_cleanup_document(p);
    pdf_cleanup_stringlists(p);
    pdf_cleanup_font_curroptions(p);
    pdc_cleanup_output(p->out, pdc_false);




    if (p->out)
	pdc_free(p->pdc, p->out);

    /* we never reach this point if (p->pdc == NULL).
    */
    pdc_delete_core(p->pdc);

    /* free the PDF structure and try to protect against duplicated calls */

    p->magic = 0L;		/* we don't reach this with the wrong magic */
    (*p->freeproc)(p, (void *) p);
}

PDFLIB_API void PDFLIB_CALL
PDF_setdashpattern(PDF *p, const char *optlist)
{
    static const char fn[] = "PDF_setdashpattern";
    pdc_resopt *results;
    float *darray, phase;
    int length;

    if (!pdf_enter_api(p, fn, pdf_state_content,
        "(p[%p], \"%s\")\n", (void *) p, optlist))
        return;

    /* parsing optlist */
    results = pdc_parse_optionlist(p->pdc, optlist, pdf_dashoptions, NULL,
                                   pdc_true);

    length = pdc_get_optvalues(p->pdc, "dasharray", results,
                               NULL, (void **) &darray);

    phase = (float) 0.0;
    (void) pdc_get_optvalues(p->pdc, "dashphase", results, &phase, NULL);

    pdc_cleanup_optionlist(p->pdc, results);

    pdf__setdashpattern(p, darray, length, phase);

    if (darray)
        pdc_free(p->pdc, darray);
}

pdc_jmpbuf *
pdc_jbuf(pdc_core *pdc)
{
    static const char fn[] = "pdc_jbuf";

    if (++pdc->pr->x_sp == pdc->pr->x_ssize)
    {
	pdc_xframe *aux;

#ifdef PDC_ALIGN16
        char *cp = (char *) (*pdc->pr->allocproc)(pdc->pr->opaque,
                        16 + 2 * pdc->pr->x_ssize * sizeof (pdc_xframe), fn);

	if (cp == (char *) 0)
	{
	    aux = (pdc_xframe *) 0;
	}
	else
	{
            /* remember the pointer in order to free it only after the memcpy
             * below, as pdc->pr->x_stack points into the memory allocated
             * to pdc->pr->x_alias
             */
            char *free_me_later = pdc->pr->x_alias;
            pdc->pr->x_alias = cp;
	    aux = (pdc_xframe *)
		(((unsigned long) cp + 16) & 0xFFFFFFFFFFFFFFF0);

            memcpy(aux, pdc->pr->x_stack,
                   pdc->pr->x_ssize * sizeof (pdc_xframe));
            pdc_free(pdc, free_me_later);
	}
#else
        aux = (pdc_xframe *) (*pdc->pr->reallocproc)(
                        pdc->pr->opaque, pdc->pr->x_stack,
                        2 * pdc->pr->x_ssize * sizeof (pdc_xframe), fn);
#endif

	if (aux == (pdc_xframe *) 0)
	{
            --pdc->pr->x_sp;
            pdc->pr->x_thrown = pdc_true;
            pdc->pr->in_error = pdc_true;

            pdc->pr->errnum = PDC_E_MEM_OUT;
            pdc->pr->apiname[0] = 0;
	    sprintf(pdc->pr->errbuf,
                    "Out of memory in TRY function (nesting level: %d)",
                    pdc->pr->x_sp + 1);

	    longjmp(pdc->pr->x_stack[pdc->pr->x_sp].jbuf.jbuf, 1);
	}

        pdc->pr->x_stack = aux;
        pdc->pr->x_ssize *= 2;
    }

    pdc->pr->x_thrown = pdc_false;
    return &pdc->pr->x_stack[pdc->pr->x_sp].jbuf;
} /* pdc_jbuf */

int
pdc_get_opt_utf8strings(pdc_core *pdc, const char *keyword, pdc_resopt *resopt,
                        int flags, char ***strings)
{
    int ns = pdc_get_optvalues(keyword, resopt, NULL, strings);

    if (ns)
    {
        if (pdc_is_lastopt_utf8(resopt))
        {
            int i = resopt[0].lastind;
            pdc_resopt *ropt = &resopt[i];
            char **s = (char **) ropt->val;
            int j;

            for (j = 0; j < ropt->num; j++)
            {
                char *sb = pdc_strdup_withbom(pdc, s[j]);

                if (s[j] != NULL)
                    pdc_free(pdc, s[j]);
                s[j] = sb;
            }
        }

        pdc_save_lastopt(resopt, flags);
    }

    return ns;
}

void
pdf_cleanup_extgstates(PDF *p)
{
    int i;

    if (!p->extgstates)
	return;

    for (i = 0; i < p->extgstates_number; i++) {
        if (p->extgstates[i].dash_array)
            pdc_free(p->pdc, p->extgstates[i].dash_array);
    }

    pdc_free(p->pdc, p->extgstates);
    p->extgstates = NULL;
}

int
pdf_insert_utilstring(PDF *p, const char *utilstring, pdc_bool kdup)
{
    static const char fn[] = "pdf_insert_utilstring";
    char **utilstrlist;
    int i = 0;

    if (p->utilstrlist_index == -1)
    {
        utilstrlist = (char **) pdc_calloc(p->pdc,
                                    PDF_MAX_UTILSTRLISTS * sizeof (char *), fn);
        p->utilstrlist_index =
            pdf_insert_stringlist(p, utilstrlist, PDF_MAX_UTILSTRLISTS);
    }
    utilstrlist = p->stringlists[p->utilstrlist_index];

    if (p->utilstring_number >= PDF_MAX_UTILSTRLISTS)
        p->utilstring_number = 0;
    i = p->utilstring_number;
    if (utilstrlist[i] != NULL)
        pdc_free(p->pdc, utilstrlist[i]);
    if (kdup)
        utilstrlist[i] = pdc_strdup_ext(p->pdc, utilstring, 0, fn);
    else
        utilstrlist[i] = (char *) utilstring;
    p->utilstring_number++;

    return i;
}