From aecb11873dde5425c1acdf8791736461f3628b14 Mon Sep 17 00:00:00 2001
From: Samo Penic <samo.penic@gmail.com>
Date: Thu, 17 Oct 2019 16:03:33 +0000
Subject: [PATCH] Non debugged compression of integer fields
---
src/snapshot.c | 39 +++++++++++++++++++++++++++++++--------
1 files changed, 31 insertions(+), 8 deletions(-)
diff --git a/src/snapshot.c b/src/snapshot.c
index da21498..6d4c993 100644
--- a/src/snapshot.c
+++ b/src/snapshot.c
@@ -9,6 +9,7 @@
#include<inttypes.h>
#include<config.h>
#include <time.h>
+#include <string.h>
#include "io.h"
/* a helper function that utilizes ts_string data structure and performs same as sprintf */
ts_uint ts_sprintf(ts_string *str, char *fmt, ...){
@@ -34,14 +35,14 @@
xml_trisurf_vtx_tristar(data,vesicle->vlist);
xml_trisurf_nucleus(data,vesicle);
xml_trisurf_constvolarea(data,V0,A0);
-#ifdef COMPRESSION
+//#ifdef COMPRESSION
char *compressed;
ts_uint nbytes=ts_compress_string64(data->string, data->beg-1, &compressed); //suppress null character at the end with by substracting 1
fwrite(compressed, sizeof(unsigned char), nbytes, fh);
free (compressed);
-#else
- fprintf(fh,"%s", data->string);
-#endif
+//#else
+// fprintf(fh,"%s", data->string);
+//#endif
free(data->string); /* TODO: valgrind is not ok with this! */
free(data);
xml_trisurf_footer(fh);
@@ -145,7 +146,7 @@
/* zlib compression base64 encoded */
/* compressed must not be pre-malloced */
/* taken from https://gist.github.com/arq5x/5315739 */
-ts_uint ts_compress_string64(char *data, ts_uint data_len, char **compressed){
+ts_uint ts_compress_data(char *data, ts_uint data_len, char **compressed){
z_stream defstream;
defstream.zalloc = Z_NULL;
defstream.zfree = Z_NULL;
@@ -158,14 +159,36 @@
deflateInit(&defstream, Z_BEST_COMPRESSION);
deflate(&defstream, Z_FINISH);
deflateEnd(&defstream);
- /*base64 encode*/
- size_t nbase;
- *compressed=base64_encode((unsigned char *)compr,(size_t)defstream.total_out,&nbase);
+ *compressed=compr;
+// *compressed=base64_encode((unsigned char *)compr,(size_t)defstream.total_out,&nbase);
//fwrite(base64, sizeof(unsigned char), nbase, fh);
+// free(compr);
+ return defstream.total_out;
+}
+
+ts_uint ts_compress_string64(char *data, ts_uint data_len, char **encoded_compressed){
+ size_t nbase;
+ char *compr;
+ size_t number_of_compressed_bytes=ts_compress_data(data, data_len, &compr);
+ *encoded_compressed=base64_encode((unsigned char *)compr,number_of_compressed_bytes,&nbase);
free(compr);
return nbase;
}
+char *ts_compress_intlist(int *data, ts_uint data_len){
+ size_t nbase;
+ char *compr;
+ size_t number_of_compressed_bytes=ts_compress_data((char *)data, data_len*sizeof(int), &compr);
+ char *encoded_compressed=base64_encode((unsigned char *)compr,number_of_compressed_bytes,&nbase);
+ free(compr);
+ ts_uint header[4]={1, data_len, data_len, nbase};
+ char *encoded_header=(char *)base64_encode((unsigned char *)header, 4*sizeof(ts_uint), &nbase);
+ encoded_header=realloc(encoded_header, 4*sizeof(ts_uint)+strlen(encoded_compressed));
+ encoded_header=strcat(encoded_header,encoded_compressed);
+ free(encoded_compressed);
+ return encoded_header;
+}
+
ts_uint ts_decompress_string64(char *b64, ts_uint data_len, char **decompressed){
return TS_SUCCESS;
--
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