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added ZWRAP_DCtx.decompState

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This commit is contained in:
inikep
2016-09-20 16:22:28 +02:00
parent 554b3b935c
commit 86fc8e0003
3 changed files with 42 additions and 25 deletions
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26
zlibWrapper/examples/fitblk.c
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@@ -57,6 +57,7 @@
//#include "zlib.h"
#include "zstd_zlibwrapper.h"
#define LOG_FITBLK(...) /*printf(__VA_ARGS__)*/
#define local static
/* print nastygram and leave */
@@ -79,14 +80,14 @@ local int partcompress(FILE *in, z_streamp def)
flush = Z_SYNC_FLUSH;
do {
def->avail_in = fread(raw, 1, RAWLEN, in);
printf("partcompress def->avail_in=%d\n", def->avail_in);
if (ferror(in))
return Z_ERRNO;
def->next_in = raw;
if (feof(in))
flush = Z_FINISH;
LOG_FITBLK("partcompress1 avail_in=%d total_in=%d avail_out=%d total_out=%d\n", (int)def->avail_in, (int)def->total_in, (int)def->avail_out, (int)def->total_out);
ret = deflate(def, flush);
printf("partcompress def->avail_out=%d\n", def->avail_out);
LOG_FITBLK("partcompress2 avail_in=%d total_in=%d avail_out=%d total_out=%d\n", (int)def->avail_in, (int)def->total_in, (int)def->avail_out, (int)def->total_out);
assert(ret != Z_STREAM_ERROR);
} while (def->avail_out != 0 && flush == Z_SYNC_FLUSH);
return ret;
@@ -105,10 +106,10 @@ local int recompress(z_streamp inf, z_streamp def)
do {
/* decompress */
inf->avail_out = RAWLEN;
printf("recompress inf->avail_out=%d\n", inf->avail_out);
inf->next_out = raw;
LOG_FITBLK("recompress1inflate avail_in=%d total_in=%d avail_out=%d total_out=%d\n", (int)inf->avail_in, (int)inf->total_in, (int)inf->avail_out, (int)inf->total_out);
ret = inflate(inf, Z_NO_FLUSH);
LOG_FITBLK("recompress2inflate avail_in=%d total_in=%d avail_out=%d total_out=%d\n", (int)inf->avail_in, (int)inf->total_in, (int)inf->avail_out, (int)inf->total_out);
assert(ret != Z_STREAM_ERROR && ret != Z_DATA_ERROR &&
ret != Z_NEED_DICT);
if (ret == Z_MEM_ERROR)
@@ -119,9 +120,10 @@ local int recompress(z_streamp inf, z_streamp def)
def->next_in = raw;
if (inf->avail_out != 0)
flush = Z_FINISH;
LOG_FITBLK("recompress1deflate avail_in=%d total_in=%d avail_out=%d total_out=%d\n", (int)def->avail_in, (int)def->total_in, (int)def->avail_out, (int)def->total_out);
ret = deflate(def, flush);
LOG_FITBLK("recompress2deflate avail_in=%d total_in=%d avail_out=%d total_out=%d\n", (int)def->avail_in, (int)def->total_in, (int)def->avail_out, (int)def->total_out);
assert(ret != Z_STREAM_ERROR);
printf("recompress def->avail_out=%d ret=%d\n", def->avail_out, ret);
} while (ret != Z_STREAM_END && def->avail_out != 0);
return ret;
}
@@ -149,8 +151,7 @@ int main(int argc, char **argv)
quit("need positive size of 8 or greater");
size = (unsigned)ret;
printf("zlib version %s = 0x%04x, compile flags = 0x%lx\n",
ZLIB_VERSION, ZLIB_VERNUM, zlibCompileFlags());
printf("zlib version %s\n", ZLIB_VERSION);
if (isUsingZSTD()) printf("zstd version %s\n", zstdVersion());
/* allocate memory for buffers and compression engine */
@@ -165,11 +166,12 @@ int main(int argc, char **argv)
/* compress from stdin until output full, or no more input */
def.avail_out = size + EXCESS;
def.next_out = blk;
LOG_FITBLK("partcompress1 total_in=%d total_out=%d\n", (int)def.total_in, (int)def.total_out);
ret = partcompress(stdin, &def);
LOG_FITBLK("partcompress2 total_in=%d total_out=%d\n", (int)def.total_in, (int)def.total_out);
if (ret == Z_ERRNO)
quit("error reading input");
printf("partcompress def.total_out=%d ret=%d\n", (int)def.total_out, ret);
/* if it all fit, then size was undersubscribed -- done! */
if (ret == Z_STREAM_END && def.avail_out >= EXCESS) {
/* write block to stdout */
@@ -205,9 +207,9 @@ printf("partcompress def.total_out=%d ret=%d\n", (int)def.total_out, ret);
inf.next_in = blk;
def.avail_out = size + EXCESS;
def.next_out = tmp;
printf("recompress1 inf.avail_in=%d def.avail_out=%d\n", inf.avail_in, def.avail_out);
LOG_FITBLK("recompress1 inf.total_in=%d def.total_out=%d\n", (int)inf.total_in, (int)def.total_out);
ret = recompress(&inf, &def);
printf("recompress1 inf.avail_in=%d def.avail_out=%d\n", inf.avail_in, def.avail_out);
LOG_FITBLK("recompress1 inf.total_in=%d def.total_out=%d\n", (int)inf.total_in, (int)def.total_out);
if (ret == Z_MEM_ERROR)
quit("out of memory");
@@ -222,9 +224,9 @@ printf("recompress1 inf.avail_in=%d def.avail_out=%d\n", inf.avail_in, def.avail
inf.next_in = tmp;
def.avail_out = size;
def.next_out = blk;
printf("recompress2 inf.avail_in=%d def.avail_out=%d\n", inf.avail_in, def.avail_out);
LOG_FITBLK("recompress2 inf.total_in=%d def.total_out=%d\n", (int)inf.total_in, (int)def.total_out);
ret = recompress(&inf, &def);
printf("recompress2 inf.avail_in=%d def.avail_out=%d\n", inf.avail_in, def.avail_out);
LOG_FITBLK("recompress2 inf.total_in=%d def.total_out=%d\n", (int)inf.total_in, (int)def.total_out);
if (ret == Z_MEM_ERROR)
quit("out of memory");
assert(ret == Z_STREAM_END); /* otherwise MARGIN too small */