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34 #ifndef SQUID_STORE_ENTRY_STREAM_H
35 #define SQUID_STORE_ENTRY_STREAM_H
42 * This class provides a streambuf interface for writing
43 * to StoreEntries. Typical use is via a StoreEntryStream
44 * rather than direct manipulation
47 class StoreEntryStreamBuf
: public std::streambuf
51 StoreEntryStreamBuf(StoreEntry
*anEntry
) : theEntry(anEntry
) {
57 ~StoreEntryStreamBuf() {
62 /* flush the current buffer and the character that is overflowing
65 virtual int_type
overflow(int_type aChar
= traits_type::eof()) {
66 std::streamsize
pending(pptr() - pbase());
68 if (pending
&& sync ())
69 return traits_type::eof();
71 if (aChar
!= traits_type::eof()) {
72 char chars
[1] = {aChar
};
74 if (aChar
!= traits_type::eof())
75 theEntry
->append(chars
, 1);
78 pbump (-pending
); // Reset pptr().
82 /* push the buffer to the store */
84 std::streamsize
pending(pptr() - pbase());
87 theEntry
->append(pbase(), pending
);
94 /* write multiple characters to the store entry
95 * - this is an optimisation method.
97 virtual std::streamsize
xsputn(const char * chars
, std::streamsize number
) {
99 theEntry
->append(chars
, number
);
105 StoreEntry
*theEntry
;
109 class StoreEntryStream
: public std::ostream
113 /* create a stream for writing text etc into theEntry */
114 // See http://www.codecomments.com/archive292-2005-2-396222.html
115 StoreEntryStream(StoreEntry
*entry
): std::ostream(0), theBuffer(entry
) {
116 rdbuf(&theBuffer
); // set the buffer to now-initialized theBuffer
117 clear(); //clear badbit set by calling init(0)
121 StoreEntryStreamBuf theBuffer
;
124 #endif /* SQUID_STORE_ENTRY_STREAM_H */