static char* test_cbuffer_transfer_data(void) {
CircularBuffer* src = cbuffer_new();
CircularBuffer* dst = cbuffer_new();
for (int i = 0; i < 200; ++i) {
cbuffer_push_back(src, i);
}
mu_assert_eq("Src buffer size", cbuffer_size(src), 200);
mu_assert_eq("Dst buffer size", cbuffer_size(dst), 0);
// transfer data from src -> dst
cbuffer_transfer_data(src, dst);
mu_assert_eq("Src buffer size post transfer",
cbuffer_size(src), 0);
mu_assert_eq("Dst buffer size post transfer",
cbuffer_size(dst), 200);
// check content
for (int i = 0; i < 200; ++i) {
mu_assert_eq("Dst content",
cbuffer_pop_front(dst), i);
}
cbuffer_free(src);
cbuffer_free(dst);
return 0;
}
static char* test_ram2()
{
// --------------
// Setup
// --------------
CircularBuffer* pc_input = cbuffer_new();
CircularBuffer* pc_output = cbuffer_new();
CircularBuffer* orsc_input = cbuffer_new();
CircularBuffer* orsc_output = cbuffer_new();
VMEStream *pc_stream = vmestream_initialize_heap(pc_input, pc_output, 2);
VMEStream *orsc_stream = malloc(sizeof(VMEStream));
orsc_stream->input = orsc_input;
orsc_stream->output = orsc_output;
orsc_stream->local_send_size = pc_stream->remote_send_size;
orsc_stream->local_recv_size = pc_stream->remote_recv_size;
orsc_stream->remote_send_size = pc_stream->local_send_size;
orsc_stream->remote_recv_size = pc_stream->local_recv_size;
orsc_stream->recv_data = pc_stream->send_data;
orsc_stream->send_data = pc_stream->recv_data;
orsc_stream->MAXRAM = pc_stream->MAXRAM;
cbuffer_push_back(pc_input, 0xDEADBEEF);
cbuffer_push_back(orsc_input, 0xBEEFCAFE);
vmestream_transfer_data(pc_stream);
vmestream_transfer_data(orsc_stream);
vmestream_transfer_data(pc_stream);
mu_assert("Error: pc_input not empty", cbuffer_size(pc_input) == 0);
mu_assert("Error: orsc_input not empty", cbuffer_size(orsc_input) == 0);
mu_assert("Error: orsc_output.pop != DEADBEEF", cbuffer_pop_front(orsc_output));
mu_assert("Error: pc_output.pop != BEEFCAFE", cbuffer_pop_front(pc_output));
mu_assert("Error: pc_output not empty", cbuffer_size(pc_output) == 0);
mu_assert("Error: orsc_output not empty", cbuffer_size(orsc_output) == 0);
// --------------
// Tear-Down
// --------------
vmestream_destroy_heap(pc_stream);
free(orsc_stream);
cbuffer_free(pc_input);
cbuffer_free(orsc_input);
cbuffer_free(pc_output);
cbuffer_free(orsc_output);
return 0;
}
/**
* Push less data to the buffers than we have RAM available
*/
static char *test_ram2()
{
// local application buffers
CircularBuffer *tx1 = cbuffer_new();
CircularBuffer *rx1 = cbuffer_new();
CircularBuffer *tx2 = cbuffer_new();
CircularBuffer *rx2 = cbuffer_new();
VMEStream *test1 = vmestream_initialize(tx1, rx1, 2);
VMEStream *test2 = malloc(sizeof(VMEStream));
test2->input = tx2;
test2->output = rx2;
test2->rx_size = test1->tx_size;
test2->tx_size = test1->rx_size;
test2->rx_data = test1->tx_data;
test2->tx_data = test1->rx_data;
test2->MAXRAM = test1->MAXRAM;
// place only one word on the buffers
cbuffer_push_back(tx1, 0xDEADBEEF);
// put some output data on host #2
cbuffer_push_back(tx2, 0xBEEFCAFE);
vmestream_transfer_data(test1);
vmestream_transfer_data(test2);
vmestream_transfer_data(test1);
mu_assert("Error: tx1 not empty", 0 == cbuffer_size(tx1));
mu_assert("Error: tx2 not empty", 0 == cbuffer_size(tx2));
mu_assert("Error: 0xDEADBEEF != rx2.pop", 0xDEADBEEF == cbuffer_pop_front(rx2));
mu_assert("Error: 0xBEEFCAFE != rx1.pop", 0xBEEFCAFE == cbuffer_pop_front(rx1));
mu_assert("Error: rx2 not empty", 0 == cbuffer_size(rx2));
mu_assert("Error: rx1 not empty", 0 == cbuffer_size(rx1));
// free memory
vmestream_destroy(test1);
free(test2);
cbuffer_free(tx1);
cbuffer_free(rx1);
cbuffer_free(tx2);
cbuffer_free(rx2);
return 0;
}
static char* test_cbuffer_append_wraps(void) {
CircularBuffer* mybuf = cbuffer_new();
// put us at the end of the buffer
mybuf->pos = IO_BUFFER_SIZE - 5;
mybuf->tail = IO_BUFFER_SIZE - 5;
uint32_t test_data[11] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
cbuffer_append(mybuf, test_data, 11);
mu_assert_eq("pos", mybuf->pos, IO_BUFFER_SIZE - 5);
mu_assert_eq("size", cbuffer_size(mybuf), 11);
mu_assert_eq("tail content", memcmp(
&(mybuf->data[mybuf->pos]),
test_data,
5 * sizeof(uint32_t)), 0);
// make sure we aren't trashing the memory after the buffer.
//mu_assert_eq("tail content sanity", mybuf->data[IO_BUFFER_SIZE-1], 4);
mu_assert_eq("head content", memcmp(
mybuf->data,
test_data + 5,
6 * sizeof(uint32_t)), 0);
uint32_t test_data2[3] = {11, 12, 13};
cbuffer_append(mybuf, test_data2, 3);
mu_assert_eq("size", cbuffer_size(mybuf), 14);
mu_assert_eq("content", memcmp(&(mybuf->data[6]), test_data2, 3), 0);
cbuffer_free(mybuf);
return 0;
}
static char* test_cbuffer_pop(void) {
CircularBuffer* mybuf = cbuffer_new();
// put us at the end of the buffer
mybuf->pos = IO_BUFFER_SIZE - 5;
mybuf->tail = IO_BUFFER_SIZE - 5;
uint32_t test_data[11] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
cbuffer_append(mybuf, test_data, 11);
Buffer* bucky = cbuffer_pop(mybuf, 5);
mu_assert_eq("size", cbuffer_size(mybuf), 6);
mu_assert_eq("content", memcmp(bucky->data, test_data,
5*sizeof(uint32_t)), 0);
Buffer* badger = cbuffer_pop(mybuf, 6);
mu_assert_eq("size2", cbuffer_size(mybuf), 0);
mu_assert_eq("content2",
memcmp(badger->data, test_data + 5, 6), 0);
// if we pop an empty collection, we get nothing.
Buffer* empty = cbuffer_pop(mybuf, 10);
mu_assert_eq("size3", empty->size, 0);
cbuffer_free(mybuf);
buffer_free(bucky);
buffer_free(badger);
buffer_free(empty);
return 0;
}
/* TODO: handle disconnecting */
void ircsock_free(IRCSock *ircsock) { /*{{{*/
if(!ircsock)
return;
cbuffer_free(ircsock->cbuf);
free(ircsock->host);
free(ircsock->nick);
free(ircsock->chan);
free(ircsock);
} /*}}}*/
static char* test_cbuffer_copy(void) {
CircularBuffer* mybuf = cbuffer_new();
mu_assert_eq("size", cbuffer_size(mybuf), 0);
mu_assert_eq("pos", mybuf->pos, 0);
mu_assert_eq("tail", mybuf->tail, 0);
for (uint32_t i = 0; i < IO_BUFFER_SIZE - 2; ++i) {
cbuffer_push_back(mybuf, i);
}
mu_assert_eq("tail", mybuf->tail, IO_BUFFER_SIZE - 2);
CircularBuffer* copy = cbuffer_copy(mybuf);
mu_assert_eq("content", memcmp(mybuf->data, copy->data,
IO_BUFFER_SIZE * sizeof(uint32_t)), 0);
mu_assert_eq("pos copy", mybuf->pos, copy->pos);
mu_assert_eq("tail copy", mybuf->tail, copy->tail);
cbuffer_free(mybuf);
cbuffer_free(copy);
return 0;
}
static char* test_cbuffer_new(void) {
CircularBuffer* mybuf = cbuffer_new();
mu_assert_eq("size", cbuffer_size(mybuf), 0);
mu_assert_eq("pos", mybuf->pos, 0);
mu_assert_eq("freespace", cbuffer_freespace(mybuf), IO_BUFFER_SIZE - 1);
mu_assert_eq("init is zero", (mybuf->data[0]), 0);
cbuffer_free(mybuf);
return 0;
}
static char* test_cbuffer_size(void) {
CircularBuffer* mybuf = cbuffer_new();
mybuf->pos = IO_BUFFER_SIZE - 5;
mybuf->tail = IO_BUFFER_SIZE - 5;
mu_assert_eq("size0", cbuffer_size(mybuf), 0);
for (int i = 0; i < 15; ++i) {
cbuffer_push_back(mybuf, i);
mu_assert_eq("size", cbuffer_size(mybuf), i + 1);
}
cbuffer_free(mybuf);
return 0;
}
static char* test_cbuffer_contiguous_data_size(void) {
CircularBuffer* mybuf = cbuffer_new();
mybuf->pos = IO_BUFFER_SIZE - 5;
mybuf->tail = IO_BUFFER_SIZE - 5;
mu_assert_eq("size0", cbuffer_contiguous_data_size(mybuf), 0);
mybuf->tail = 10;
mu_assert_eq("size5", cbuffer_contiguous_data_size(mybuf), 5);
mybuf->pos = 3;
mu_assert_eq("size7", cbuffer_contiguous_data_size(mybuf), 7);
cbuffer_free(mybuf);
return 0;
}
static char* test_cbuffer_freespace(void) {
CircularBuffer* mybuf = cbuffer_new();
mybuf->tail = IO_BUFFER_SIZE - 5;
mu_assert_eq("freespace", cbuffer_freespace(mybuf), 4);
mu_assert_eq("size", cbuffer_size(mybuf), IO_BUFFER_SIZE - 5);
for (int i = 1; i < 5; ++i) {
cbuffer_push_back(mybuf, i);
mu_assert_eq("freespace", cbuffer_freespace(mybuf), 4 - i);
}
cbuffer_free(mybuf);
return 0;
}
static char* test_cbuffer_net_features(void) {
CircularBuffer* mybuf = cbuffer_new();
// put us at the end of the buffer
cbuffer_push_back_net(mybuf, 0xDEADBEEF);
cbuffer_push_back_net(mybuf, 0xBEEFFACE);
cbuffer_push_back_net(mybuf, 0xDEADFACE);
mu_assert_eq("item0", cbuffer_value_at_net(mybuf, 0), 0xDEADBEEF);
mu_assert_eq("item1", cbuffer_value_at_net(mybuf, 1), 0xBEEFFACE);
mu_assert_eq("item2", cbuffer_value_at_net(mybuf, 2), 0xDEADFACE);
cbuffer_free(mybuf);
return 0;
}
static char* test_cbuffer_value_at_wraps(void) {
CircularBuffer* mybuf = cbuffer_new();
// put us at the end of the buffer
mybuf->pos = IO_BUFFER_SIZE - 5;
mybuf->tail = IO_BUFFER_SIZE - 5;
uint32_t test_data[11] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
cbuffer_append(mybuf, test_data, 11);
for (int i = 0; i < 11; ++i) {
mu_assert_eq("read at", cbuffer_value_at(mybuf, i), test_data[i]);
}
cbuffer_free(mybuf);
return 0;
}
static char* test_cbuffer_fd_full(void) {
// make sure we can stop reading if our read buffer is full
// make pipes
int pipefd[2];
pipe(pipefd);
// make txpipe nonblocking, so we can check if it's empty.
fcntl(pipefd[0], F_SETFL, fcntl(pipefd[0], F_GETFL) | O_NONBLOCK);
int in = pipefd[1];
int out = pipefd[0];
CircularBuffer* frombuf = cbuffer_new();
for (int i = 0; i < 200; ++i) {
cbuffer_push_back(frombuf, i);
}
mu_assert_eq("from size", cbuffer_size(frombuf), 200);
CircularBuffer* tobuf = cbuffer_new();
tobuf->pos = IO_BUFFER_SIZE - 100;
tobuf->tail = IO_BUFFER_SIZE - 100;
ssize_t written = cbuffer_write_fd(frombuf, in, 200);
mu_assert_eq("wrote to pipe", written, 200);
mu_assert_eq("from size after", cbuffer_size(frombuf), 0);
tobuf->tail += IO_BUFFER_SIZE - 100;
mu_assert_eq("to freespace", cbuffer_freespace(tobuf), 99);
ssize_t read = cbuffer_read_fd(tobuf, out, 200);
ssize_t exp = 99;
mu_assert_eq("read from pipe", (int)read, (int)exp);
cbuffer_free(frombuf);
cbuffer_free(tobuf);
return 0;
}
static char* test_cbuffer_fd_features(void) {
// make pipes
int pipefd[2];
pipe(pipefd);
// make txpipe nonblocking, so we can check if it's empty.
fcntl(pipefd[0], F_SETFL, fcntl(pipefd[0], F_GETFL) | O_NONBLOCK);
int in = pipefd[1];
int out = pipefd[0];
CircularBuffer* frombuf = cbuffer_new();
for (int i = 0; i < 200; ++i) {
cbuffer_push_back(frombuf, i);
}
mu_assert_eq("from size", cbuffer_size(frombuf), 200);
CircularBuffer* tobuf = cbuffer_new();
tobuf->pos = IO_BUFFER_SIZE - 100;
tobuf->tail = IO_BUFFER_SIZE - 100;
ssize_t written = cbuffer_write_fd(frombuf, in, 200);
mu_assert_eq("wrote to pipe", written, 200);
mu_assert_eq("from size after", cbuffer_size(frombuf), 0);
ssize_t read = cbuffer_read_fd(tobuf, out, 200);
mu_assert_eq("read from pipe", read, 200);
for (int i = 0; i < 200; ++i) {
mu_assert_eq("fd closure value", cbuffer_value_at(tobuf, i), i);
}
cbuffer_free(frombuf);
cbuffer_free(tobuf);
return 0;
}
static char* test_cbuffer_read_wraps(void) {
CircularBuffer* mybuf = cbuffer_new();
// put us at the end of the buffer
mybuf->pos = IO_BUFFER_SIZE - 5;
mybuf->tail = IO_BUFFER_SIZE - 5;
uint32_t test_data[11] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
cbuffer_append(mybuf, test_data, 11);
Buffer* readout = buffer_new(NULL, 11);
cbuffer_read(mybuf, readout->data, 11);
mu_assert_eq("size", readout->size, 11);
mu_assert_eq("content", memcmp(readout->data, test_data, 11 * sizeof(uint32_t)), 0);
cbuffer_free(mybuf);
buffer_free(readout);
return 0;
}
static char* test_cbuffer_read(void) {
CircularBuffer* mybuf = cbuffer_new();
Buffer* readout = buffer_new(NULL, 11);
uint32_t test_data[11] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
cbuffer_append(mybuf, test_data, 11);
cbuffer_read(mybuf, readout->data, 11);
mu_assert_eq("size", readout->size, 11);
mu_assert_eq("content", memcmp(readout->data, test_data, 11 * sizeof(uint32_t)), 0);
// if we ask for too much it cbuffer gives us what it has.
Buffer* readout2 = buffer_new(NULL, 30);
int actually_read = cbuffer_read(mybuf, readout2->data, 30);
mu_assert_eq("size2", actually_read, 11);
mu_assert_eq("content2", memcmp(readout2->data, test_data, 11 * sizeof(uint32_t)), 0);
cbuffer_free(mybuf);
buffer_free(readout);
buffer_free(readout2);
return 0;
}
static char* test_cbuffer_push_back(void) {
CircularBuffer* mybuf = cbuffer_new();
// put us at the end of the buffer
mybuf->pos = IO_BUFFER_SIZE - 2;
mybuf->tail = IO_BUFFER_SIZE - 2;
cbuffer_push_back(mybuf, 0xDEADBEEF);
cbuffer_push_back(mybuf, 0xBEEFFACE);
cbuffer_push_back(mybuf, 0xDEADFACE);
mu_assert_eq("size", cbuffer_size(mybuf), 3);
mu_assert_eq("pos", mybuf->pos, IO_BUFFER_SIZE-2);
mu_assert_eq("item0", mybuf->data[mybuf->pos], 0xDEADBEEF);
mu_assert_eq("item1", mybuf->data[mybuf->pos + 1], 0xBEEFFACE);
mu_assert_eq("item2", mybuf->data[0], 0xDEADFACE);
cbuffer_free(mybuf);
return 0;
}
static char* test_cbuffer_append(void) {
CircularBuffer* mybuf = cbuffer_new();
uint32_t test_data[5] = {0, 1, 2, 3, 4};
cbuffer_append(mybuf, test_data, 5);
mu_assert_eq("pos", mybuf->pos, 0);
mu_assert_eq("size", cbuffer_size(mybuf), 5);
mu_assert_eq("content", memcmp(mybuf->data, test_data, 5 * sizeof(uint32_t)), 0);
uint32_t test_data2[3] = {6, 7, 8};
cbuffer_append(mybuf, test_data2, 3);
mu_assert_eq("pos", mybuf->pos, 0);
mu_assert_eq("size", cbuffer_size(mybuf), 8);
mu_assert_eq("content2", memcmp(mybuf->data, test_data, 5 * sizeof(uint32_t)), 0);
mu_assert_eq("content3", memcmp(&(mybuf->data[5]),
test_data2, 3 * sizeof(uint32_t)), 0);
cbuffer_free(mybuf);
return 0;
}
static char* test_cbuffer_delete_front_wraps(void) {
CircularBuffer* mybuf = cbuffer_new();
uint32_t test_data[11] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
// put us at the end of the buffer
mybuf->pos = IO_BUFFER_SIZE - 5;
mybuf->tail = IO_BUFFER_SIZE - 5;
cbuffer_append(mybuf, test_data, 11);
mu_assert_eq("content", memcmp(&(mybuf->data[mybuf->pos]),
test_data, 5 * sizeof(uint32_t)), 0);
int deleted = cbuffer_deletefront(mybuf, 5);
mu_assert_eq("deleted", deleted, 5);
mu_assert_eq("pos", mybuf->pos, 0);
mu_assert_eq("size", cbuffer_size(mybuf), 6);
mu_assert_eq("item0", mybuf->data[mybuf->pos], 5);
mu_assert_eq("item1", mybuf->data[mybuf->pos+1], 6);
mu_assert_eq("item2", mybuf->data[mybuf->pos+2], 7);
mu_assert_eq("remaining content in cbuffer", memcmp(
&(mybuf->data[0]),
test_data + 5, 6 * sizeof(uint32_t)), 0);
Buffer* readout = buffer_new(NULL, 6);
cbuffer_read(mybuf, readout->data, 6);
mu_assert_eq("remaining content", memcmp(
readout->data,
(test_data + 5),
6 * sizeof(uint32_t)), 0);
// if we ask to delete everything, just return what was actually deleted.
int deleted_just_to_end = cbuffer_deletefront(mybuf, 100);
mu_assert_eq("deleted just to end", deleted_just_to_end, 6);
mu_assert_eq("pos2", mybuf->pos, 6);
mu_assert_eq("size2", cbuffer_size(mybuf), 0);
cbuffer_free(mybuf);
buffer_free(readout);
return 0;
}
static char* test_cbuffer_pop_front(void) {
CircularBuffer* mybuf = cbuffer_new();
// put us at the end of the buffer
mybuf->pos = IO_BUFFER_SIZE - 5;
mybuf->tail = IO_BUFFER_SIZE - 5;
uint32_t test_data[11] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
cbuffer_append(mybuf, test_data, 11);
for (int i = 0; i < 11; i++) {
mu_assert_eq("pre-pop size", cbuffer_size(mybuf), 11 - i);
uint32_t value = cbuffer_pop_front(mybuf);
mu_assert_eq("popped_content", (int)value, i);
}
// if we pop an empty collection, we get dead beef.
uint32_t empty = cbuffer_pop_front(mybuf);
mu_assert_eq("empty", empty, 0xDEADBEEF);
cbuffer_free(mybuf);
return 0;
}
/*
* Make sure cbuffer_fd_read handles the edge case where cbuffer->tail returns
* to the front of buffer->data
*/
static char* test_cbuffer_fd_read_edge(void) {
int pipefd[2];
pipe(pipefd);
fcntl(pipefd[0], F_SETFL, fcntl(pipefd[0], F_GETFL) | O_NONBLOCK);
int in = pipefd[1];
int out = pipefd[0];
CircularBuffer* mybuf = cbuffer_new();
// completely fill buffer
while (cbuffer_freespace(mybuf) > 0) {
mu_assert_eq("mybuf overflow", cbuffer_push_back(mybuf, 0xDEADBEEF), 0);
}
mu_assert_eq("mybuf still has free space", cbuffer_freespace(mybuf), 0);
// clear a single space in the cbuffer
// free space should be at the front of cbuffer->data
cbuffer_deletefront(mybuf, 1);
uint32_t inbuf[] = {0xCAFEBABE};
write(in, inbuf, sizeof(uint32_t));
// read a single word into the free slot in the buffer
mu_assert_eq("Could not read data", cbuffer_read_fd(mybuf, out, 1), 1);
// check the content of the cbuffer
while (cbuffer_size(mybuf) > 1) {
mu_assert_eq("Content should be 0xDEADBEEF",
cbuffer_pop_front(mybuf), 0xDEADBEEF);
}
mu_assert_eq("Content should be 0xCAFEBABE",
cbuffer_pop_front(mybuf), 0xCAFEBABE);
cbuffer_free(mybuf);
return 0;
}
/**
* Overload buffer test
*/
static char *test_buf()
{
// local application buffers
CircularBuffer *tx1 = cbuffer_new();
CircularBuffer *rx1 = cbuffer_new();
CircularBuffer *tx2 = cbuffer_new();
CircularBuffer *rx2 = cbuffer_new();
VMEStream *test1 = vmestream_initialize(tx1, rx1, 32);
VMEStream *test2 = malloc(sizeof(VMEStream));
test2->input = tx2;
test2->output = rx2;
test2->rx_size = test1->tx_size;
test2->tx_size = test1->rx_size;
test2->rx_data = test1->tx_data;
test2->tx_data = test1->rx_data;
test2->MAXRAM = test1->MAXRAM;
cbuffer_push_back(rx2, 0xDEADBEEF);
for (int i = 0; i < 510; i++) {
cbuffer_push_back(rx2, 0xBEEFCAFE);
}
cbuffer_push_back(tx1, 0xBEEFCAFE + 1);
cbuffer_push_back(tx1, 0xBEEFCAFE + 2);
cbuffer_push_back(tx1, 0xBEEFCAFE + 3);
cbuffer_push_back(tx1, 0xBEEFCAFE + 4);
mu_assert("Error: rx2 should have no space left",
cbuffer_freespace(rx2) == 0);
// sanity check
mu_assert_eq("Error: output size != 4", cbuffer_size(tx1), 4);
// do several transfers
vmestream_transfer_data(test1);
vmestream_transfer_data(test2);
vmestream_transfer_data(test1);
vmestream_transfer_data(test2);
// no data should have been transferred
mu_assert_eq("Error: tx_size != 4", *(test1->tx_size), 4);
mu_assert("Error: rx2.pop != 0xDEADBEEF", 0xDEADBEEF == cbuffer_pop_front(rx2));
cbuffer_pop_front(rx2);
cbuffer_pop_front(rx2);
// popping off rx2 should have freed 3 words, but not enough to transfer all
// four
vmestream_transfer_data(test1);
vmestream_transfer_data(test2);
mu_assert_eq("Error: tx_size != 4", *(test1->tx_size), 4);
mu_assert("Errrr: rx2.pop not 0xBEEFCAFE", 0xBEEFCAFE == cbuffer_pop_front(rx2));
cbuffer_pop_front(rx2);
// now there is enough room for all the limbo data to be transferred to rx2
vmestream_transfer_data(test1);
vmestream_transfer_data(test2);
mu_assert("Error: tx_size != 0", *(test1->tx_size) == 0);
mu_assert("Error: tx1 not empty", 0 == cbuffer_size(tx1));
for (int i = 0; i < 4; ++i) {
mu_assert_eq("Unexpected data transferred",
cbuffer_value_at(rx2, cbuffer_size(rx2) - 4 + i), 0xBEEFCAFE + i + 1);
}
// free memory
vmestream_destroy(test1);
free(test2);
cbuffer_free(tx1);
cbuffer_free(rx1);
cbuffer_free(tx2);
cbuffer_free(rx2);
return 0;
}
static char *test_ram1()
{
// local application buffers
CircularBuffer *tx1 = cbuffer_new();
CircularBuffer *rx1 = cbuffer_new();
CircularBuffer *tx2 = cbuffer_new();
CircularBuffer *rx2 = cbuffer_new();
VMEStream *test1 = vmestream_initialize(tx1, rx1, 1);
VMEStream *test2 = malloc(sizeof(VMEStream));
test2->input = tx2;
test2->output = rx2;
test2->rx_size = test1->tx_size;
test2->tx_size = test1->rx_size;
test2->rx_data = test1->tx_data;
test2->tx_data = test1->rx_data;
test2->MAXRAM = test1->MAXRAM;
for (unsigned int i = 0; i < 20; ++i) {
// put some output data on host #1
cbuffer_push_back(tx1, 0xDEADBEEF + i);
// put some output data on host #2
cbuffer_push_back(tx2, 0xBEEFCAFE + i);
}
// do a transfer
vmestream_transfer_data(test1); // step 1
vmestream_transfer_data(test2); // step 2
// host #2 has received data, since host #1 filled it's TX buffer in step 1
// and host #2 can read it out in step 2
mu_assert("Error: 0xDEADBEEF != rx2.pop", 0xDEADBEEF == cbuffer_pop_front(rx2));
vmestream_transfer_data(test1); // step 3
// now host #1 can read the data loaded by host #2 in step 2
mu_assert("Error: 0xBEEFCAFE != rx1.pop", 0xBEEFCAFE == cbuffer_pop_front(rx1));
// do another transfer
vmestream_transfer_data(test2);
vmestream_transfer_data(test1);
mu_assert("Error: 0xBEEFCAFE+1 != rx1.pop", 0xBEEFCAFE + 1 == cbuffer_pop_front(rx1));
mu_assert("Error: 0xDEADBEEF+1 != rx2.pop", 0xDEADBEEF + 1 == cbuffer_pop_front(rx2));
// We have consumed all received data (via pop). There is a word of
// data in limbo for host #1
mu_assert("Error: 0 != rx1.size", 0 == cbuffer_size(rx1));
mu_assert("Error: 0 != rx2.size", 0 == cbuffer_size(rx2));
mu_assert("Error: 17 != tx1.size", 17 == cbuffer_size(tx1));
mu_assert("Error: 18 != tx2.size", 18 == cbuffer_size(tx2));
// call transfer on #1 twice in a row. Since it's still waiting for
// #2 to read the data, nothing happens.
vmestream_transfer_data(test1);
mu_assert("Error: 0 != rx1.size", 0 == cbuffer_size(rx1));
mu_assert("Error: 0 != rx2.size", 0 == cbuffer_size(rx2));
mu_assert("Error: 17 != tx1.size", 17 == cbuffer_size(tx1));
mu_assert("Error: 18 != tx2.size", 18 == cbuffer_size(tx2));
// #2 receives limbo data, puts one of it's words in limbo.
vmestream_transfer_data(test2);
mu_assert("Error: 0 != rx1.size", 0 == cbuffer_size(rx1));
mu_assert("Error: 1 != rx2.size", 1 == cbuffer_size(rx2));
mu_assert("Error: 17 != tx1.size", 17 == cbuffer_size(tx1));
mu_assert("Error: 17 != tx2.size", 17 == cbuffer_size(tx2));
// free memory
vmestream_destroy(test1);
free(test2);
cbuffer_free(tx1);
cbuffer_free(rx1);
cbuffer_free(tx2);
cbuffer_free(rx2);
return 0;
}
static char* test_ram1()
{
CircularBuffer* pc_input = cbuffer_new();
CircularBuffer* pc_output = cbuffer_new();
CircularBuffer* orsc_input = cbuffer_new();
CircularBuffer* orsc_output = cbuffer_new();
VMEStream *pc_stream = vmestream_initialize_heap(pc_input, pc_output, 1);
VMEStream *orsc_stream = malloc(sizeof(VMEStream));
orsc_stream->input = orsc_input;
orsc_stream->output = orsc_output;
orsc_stream->local_send_size = pc_stream->remote_send_size;
orsc_stream->local_recv_size = pc_stream->remote_recv_size;
orsc_stream->remote_send_size = pc_stream->local_send_size;
orsc_stream->remote_recv_size = pc_stream->local_recv_size;
orsc_stream->recv_data = pc_stream->send_data;
orsc_stream->send_data = pc_stream->recv_data;
orsc_stream->MAXRAM = pc_stream->MAXRAM;
for (uint32_t i = 0; i < 20; ++i) {
cbuffer_push_back(pc_input, 0xDEADBEEF + i);
cbuffer_push_back(orsc_input, 0xBEEFCAFE + i);
}
// initial transfer
vmestream_transfer_data(pc_stream);
// transfer data
vmestream_transfer_data(orsc_stream);
vmestream_transfer_data(pc_stream);
mu_assert("Error: orsc_output.pop != DEADBEEF", cbuffer_pop_front(orsc_output) == 0xDEADBEEF);
mu_assert("Error: pc_output.pop != BEEFCAFE", cbuffer_pop_front(pc_output) == 0xBEEFCAFE);
// extra transfer is needed to reset the size registers
// to zero to prepare for another transfer
vmestream_transfer_data(orsc_stream);
vmestream_transfer_data(pc_stream);
// transfer data
vmestream_transfer_data(orsc_stream);
vmestream_transfer_data(pc_stream);
mu_assert("Error: orsc_output.pop != DEADBEEF + 1", cbuffer_pop_front(orsc_output) == 0xDEADBEEF + 1);
mu_assert("Error: pc_output.pop != BEEFCAFE + 1", cbuffer_pop_front(pc_output) == 0xBEEFCAFE + 1);
/*
printf("pc_output.size: %d\n", cbuffer_size(pc_output));
printf("orsc_output.size: %d\n", cbuffer_size(orsc_output));
printf("pc_input.size: %d\n", cbuffer_size(pc_input));
printf("orsc_input.size: %d\n", cbuffer_size(orsc_input));
*/
mu_assert("Error: pc_output.size != 0", cbuffer_size(pc_output) == 0);
mu_assert("Error: orsc_output.size != 0", cbuffer_size(orsc_output) == 0);
mu_assert("Error: pc_input.size != 18", cbuffer_size(pc_input) == 18);
mu_assert("Error: orsc_input.size != 18", cbuffer_size(orsc_input) == 18);
// transfer on pc_stream 2x in a row. Nothing should happen.
vmestream_transfer_data(pc_stream);
mu_assert("Error: pc_output.size != 0", cbuffer_size(pc_output) == 0);
mu_assert("Error: orsc_output.size != 0", cbuffer_size(orsc_output) == 0);
mu_assert("Error: pc_input.size != 18", cbuffer_size(pc_input) == 18);
mu_assert("Error: orsc_input.size != 18", cbuffer_size(orsc_input) == 18);
// reset
vmestream_transfer_data(orsc_stream);
vmestream_transfer_data(pc_stream);
vmestream_transfer_data(orsc_stream);
mu_assert("Error: pc_output.size != 0", cbuffer_size(pc_output) == 0);
mu_assert("Error: orsc_output.size != 1", cbuffer_size(orsc_output) == 1);
mu_assert("Error: pc_input.size != 17", cbuffer_size(pc_input) == 17);
mu_assert("Error: orsc_input.size != 17", cbuffer_size(orsc_input) == 17);
vmestream_destroy_heap(pc_stream);
free(orsc_stream);
cbuffer_free(pc_input);
cbuffer_free(orsc_input);
cbuffer_free(pc_output);
cbuffer_free(orsc_output);
return 0;
}
static char* test_cbuffer_free(void) {
CircularBuffer* mybuf = cbuffer_new();
// doesn't crash
cbuffer_free(mybuf);
return 0;
}
