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Use the BinarySink system for conf serialisation.

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Now instead of iterating through conf twice in separate functions,
once to count up the size of the serialised data and once to write it
out, I just go through once and dump it all in a strbuf.

(Of course, I could still do a two-pass count-then-allocate approach
easily enough in this system; nothing would stop me writing a
BinarySink implementation that didn't actually store any data and just
counted its size, and then I could choose at each call site whether I
preferred to do it that way.)
This commit is contained in:
Simon Tatham
2018-05-24 10:48:20 +01:00
parent 81a04c4fe6
commit a990738aca
7 changed files with 54 additions and 119 deletions
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8
putty.h
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@ -20,6 +20,7 @@
#include "puttyps.h"
#include "network.h"
#include "misc.h"
#include "marshal.h"
/*
* We express various time intervals in unsigned long minutes, but may need to
@ -1013,8 +1014,7 @@ void conf_del_str_str(Conf *conf, int key, const char *subkey);
void conf_set_filename(Conf *conf, int key, const Filename *val);
void conf_set_fontspec(Conf *conf, int key, const FontSpec *val);
/* Serialisation functions for Duplicate Session */
int conf_serialised_size(Conf *conf);
void conf_serialise(Conf *conf, void *data);
void conf_serialise(BinarySink *bs, Conf *conf);
int conf_deserialise(Conf *conf, void *data, int maxsize);/*returns size used*/
/*
@ -1028,7 +1028,7 @@ int conf_deserialise(Conf *conf, void *data, int maxsize);/*returns size used*/
*/
FontSpec *fontspec_copy(const FontSpec *f);
void fontspec_free(FontSpec *f);
int fontspec_serialise(FontSpec *f, void *data);
void fontspec_serialise(BinarySink *bs, FontSpec *f);
FontSpec *fontspec_deserialise(void *data, int maxsize, int *used);
/*
@ -1463,7 +1463,7 @@ int filename_equal(const Filename *f1, const Filename *f2);
int filename_is_null(const Filename *fn);
Filename *filename_copy(const Filename *fn);
void filename_free(Filename *fn);
int filename_serialise(const Filename *f, void *data);
void filename_serialise(BinarySink *bs, const Filename *f);
Filename *filename_deserialise(void *data, int maxsize, int *used);
char *get_username(void); /* return value needs freeing */
char *get_random_data(int bytes, const char *device); /* used in cmdgen.c */