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Move token buffers off the stack (Issue #117)

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Michael R Sweet
2025-04-04 21:20:23 -04:00
parent fe755eac3d
commit 0bd9edc845
4 changed files with 170 additions and 35 deletions
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11
pdfio-private.h
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@@ -225,6 +225,14 @@ typedef struct _pdfio_objmap_s // PDF object map
size_t src_number; // Source object number
} _pdfio_objmap_t;
typedef struct _pdfio_strbuf_s // PDF string buffer
{
struct _pdfio_strbuf_s *next; // Next string buffer
bool bufused; // Is this string buffer being used?
char buffer[PDFIO_MAX_STRING + 32];
// String buffer
} _pdfio_strbuf_t;
struct _pdfio_file_s // PDF file structure
{
char *filename; // Filename
@@ -284,6 +292,7 @@ struct _pdfio_file_s // PDF file structure
size_t num_strings, // Number of strings
alloc_strings; // Allocated strings
char **strings; // Nul-terminated strings
_pdfio_strbuf_t *strbuffers; // String buffers
};
struct _pdfio_obj_s // Object
@@ -391,6 +400,8 @@ extern bool _pdfioObjWriteHeader(pdfio_obj_t *obj) _PDFIO_INTERNAL;
extern pdfio_stream_t *_pdfioStreamCreate(pdfio_obj_t *obj, pdfio_obj_t *length_obj, size_t cbsize, pdfio_filter_t compression) _PDFIO_INTERNAL;
extern pdfio_stream_t *_pdfioStreamOpen(pdfio_obj_t *obj, bool decode) _PDFIO_INTERNAL;
extern char *_pdfioStringAllocBuffer(pdfio_file_t *pdf);
extern void _pdfioStringFreeBuffer(pdfio_file_t *pdf, char *buffer);
extern bool _pdfioStringIsAllocated(pdfio_file_t *pdf, const char *s) _PDFIO_INTERNAL;
extern void _pdfioTokenClear(_pdfio_token_t *tb) _PDFIO_INTERNAL;