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lib_chunks.c
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lib_chunks.c
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#include "util.h"
#include "unit_test.h"
int main(int argc, char **argv)
{
util_chunks_t chunks;
chunks = util_chunks_new(10);
fail_unless(chunks);
fail_unless(util_chunks_len(chunks) == 0);
fail_unless(!util_chunks_free(chunks));
chunks = util_chunks_new(10);
lob_t packet = lob_new();
lob_body(packet,0,100);
fail_unless(util_chunks_send(chunks, lob_copy(packet)));
fail_unless(util_chunks_len(chunks) == 1);
uint8_t len = 0;
// check write
fail_unless(util_chunks_write(chunks));
LOG("wait %d write %d",chunks->waitat,chunks->writeat);
fail_unless(chunks->waitat == 0);
fail_unless(chunks->writeat == 0);
fail_unless(util_chunks_written(chunks,1));
LOG("wait %d write %d",chunks->waitat,chunks->writeat);
fail_unless(chunks->waitat == 1);
fail_unless(chunks->writeat == 0);
len = util_chunks_len(chunks);
fail_unless(len == 9);
fail_unless(util_chunks_written(chunks,4));
fail_unless(chunks->waitat == 5);
fail_unless(chunks->writeat == 0);
fail_unless(util_chunks_len(chunks) == 5);
fail_unless(util_chunks_written(chunks,5));
fail_unless(chunks->waitat == 0);
fail_unless(chunks->writeat == 9);
chunks->blocked = 0; // for testing
fail_unless(!util_chunks_free(chunks));
// try large
util_chunks_t cbig = util_chunks_new(0);
lob_t pbig = lob_new();
lob_body(pbig,0,845);
fail_unless(util_chunks_send(cbig, lob_copy(pbig)));
fail_unless(util_chunks_written(cbig,1));
cbig->blocked = 0;
fail_unless(util_chunks_len(cbig) == 255);
// double and unblocked
util_chunks_t c1 = util_chunks_new(20);
c1->blocking = 0;
fail_unless(util_chunks_send(c1, lob_copy(packet)));
fail_unless(util_chunks_send(c1, lob_copy(packet)));
// try send and receive by stream
LOG("chunk stream test");
util_chunks_t c2 = util_chunks_new(20);
uint8_t *buf, max;
for(max=0;max<100;max++)
{
if(!(len = util_chunks_len(c1))) break;
LOG("len %d",len);
fail_unless((buf = util_chunks_write(c1)));
util_chunks_read(c2,buf,len);
fail_unless(util_chunks_written(c1,len));
}
LOG("max %d",max);
fail_unless(max == 26);
lob_t p1 = util_chunks_receive(c2);
fail_unless(p1);
LOG("len %d",p1->body_len);
fail_unless(p1->body_len == 100);
lob_free(p1);
lob_t p2 = util_chunks_receive(c2);
fail_unless(p2);
fail_unless(p2->body_len == 100);
lob_free(p2);
util_chunks_free(c1);
util_chunks_free(c2);
// blocking behavior
LOG("chunk blocking test");
c1 = util_chunks_new(60);
fail_unless(util_chunks_send(c1, lob_copy(packet)));
c2 = util_chunks_new(60);
fail_unless(util_chunks_send(c2, lob_copy(packet)));
// send first volley
len = util_chunks_len(c1);
buf = util_chunks_write(c1);
fail_unless(util_chunks_read(c2,buf,len));
fail_unless(util_chunks_written(c1,len));
len = util_chunks_len(c2);
buf = util_chunks_write(c2);
fail_unless(util_chunks_read(c1,buf,len)); // one chunk back
fail_unless(util_chunks_written(c2,len));
fail_unless(util_chunks_receive(c1) == NULL); // no packet yet
fail_unless(util_chunks_receive(c2) == NULL); // no packet yet
// rest of packet
size_t len1, len2;
for(max=0;max<20;max++)
{
len1 = util_chunks_len(c1);
LOG("len %d blk %d ack %d",len1,c1->blocked,c1->ack);
buf = util_chunks_write(c1);
fail_unless(util_chunks_read(c2,buf,len1));
fail_unless(util_chunks_written(c1,len1));
len2 = util_chunks_len(c2);
LOG("len %d blk %d ack %d",len2,c2->blocked,c2->ack);
buf = util_chunks_write(c2);
fail_unless(util_chunks_read(c1,buf,len2));
fail_unless(util_chunks_written(c2,len2));
if(!len1 && !len2) break;
}
LOG("max of %d",max);
fail_unless(max == 4);
p1 = util_chunks_receive(c1);
fail_unless(p1);
fail_unless(p1->body_len == 100);
lob_free(p1);
p2 = util_chunks_receive(c2);
fail_unless(p2);
fail_unless(p2->body_len == 100);
lob_free(p2);
util_chunks_free(c1);
util_chunks_free(c2);
LOG("testing frame-based chunking");
util_chunks_t f1 = util_chunks_new(10);
fail_unless(f1);
fail_unless(util_chunks_send(f1, lob_copy(packet)));
fail_unless(util_chunks_size(f1) == 9);
fail_unless(util_chunks_frame(f1));
fail_unless(util_chunks_peek(f1));
while(util_chunks_size(f1) == 9) fail_unless(util_chunks_next(f1));
LOG("tail is size %d",util_chunks_size(f1));
fail_unless(util_chunks_size(f1) == 3);
fail_unless(util_chunks_peek(f1) == 0);
fail_unless(util_chunks_size(f1) == 3);
fail_unless(util_chunks_next(f1));
fail_unless(util_chunks_size(f1) == 0);
fail_unless(util_chunks_peek(f1) == -1);
fail_unless(util_chunks_size(f1) == 0);
fail_unless(util_chunks_next(f1));
fail_unless(util_chunks_size(f1) == -1);
return 0;
}