//Note, the preq needs to be able to set the EN flag
void process_PReq(uintptr_t rx_buffer_address, chanend c_can_open){
frame * frm = (frame *)rx_buffer_address;
PReq_t * p = &(frm->pl_frame.preq);
if(p->RD==0)
return;
//read from 0x1600:0
unsigned char number_of_entries;
unsigned no_of_bytes;
co_error_code_t err = co_read(c_can_open, 0x1600, 0, &number_of_entries, &no_of_bytes);
//TODO check the err
for(unsigned short subindex=1;subindex<=number_of_entries;subindex++){
uint16_t rx_index;
uint8_t rx_subindex;
uint16_t rx_offset;
uint16_t rx_length;
co_read_PDO_entry(c_can_open, 0x1600, subindex, &rx_index, &rx_subindex, &rx_length, &rx_offset);
uint8_t data[C_DLL_ISOCHR_MAX_PAYL];
unsigned number_of_bytes = rx_length>>3;
co_error_code_t e = co_write(c_can_open, rx_index, rx_subindex, p->payload, number_of_bytes);
}
//TODO deal with the error flags in much the same way as soa
//if(error_signalling_data_present)
// async_state->EN = 1 - p->EA;
}
static void main_thread(co_context_t *co, void *user) {
co_file_t *peer;
const char *request =
"GET / HTTP/1.0\r\n"
"Host: google.com\r\n"
"Connection: close\r\n"
"User-Agent: libco/0.1\r\n"
"\r\n";
char buf;
ssize_t rsize;
printf("connecting...\n");
peer = co_connect_tcp(co, "google.com", 80);
if (peer == NULL) {
printf("connect failed :(\n");
return;
}
printf("connected! sending request...\n");
co_write(co, peer, request, strlen(request), NULL);
printf("request sent! reading response, a byte at a time...\n");
do {
buf = 0;
co_read(co, peer, &buf, 1, &rsize);
putchar(buf);
} while (rsize);
printf("end of response. bye!\n");
}
void prepare_PRes(uintptr_t tx_buffer_address, chanend c_can_open){
unsigned char number_of_entries;
unsigned no_of_bytes;
co_error_code_t err = co_read(c_can_open, 0x1a00, 0, &number_of_entries, &no_of_bytes);
//TODO check the err
frame * frm = (frame *)tx_buffer_address;
PRes_t * p = &(frm->pl_frame.pres);
for(unsigned short subindex=1;subindex<=number_of_entries;subindex++){
uint16_t rx_index;
uint8_t rx_subindex;
uint16_t rx_offset;
uint16_t rx_length;
co_read_PDO_entry(c_can_open, 0x1a00, subindex, &rx_index, &rx_subindex, &rx_length, &rx_offset);
uint8_t data[C_DLL_ISOCHR_MAX_PAYL];
unsigned number_of_bytes;
co_error_code_t e = co_read(c_can_open, rx_index, rx_subindex, p->payload, &number_of_bytes);
}
p->size = 1;
}
static void connector_thread(co_context_t *co, void *_conn) {
co_file_t *peer;
struct connector *conn = _conn;
const char *request_fmt =
"GET / HTTP/1.0\r\n"
"Host: %s\r\n"
"User-Agent: libco/0.0\r\n"
"Accept: */*\r\n"
"Connection: close\r\n"
"\r\n";
char buf[BUFSIZE];
ssize_t rsize;
snprintf(buf, BUFSIZE, request_fmt, conn->host);
printf("%s: connecting to %s\n", conn->name, conn->host);
peer = co_connect_tcp(co, conn->host, 80);
if (peer == NULL) {
printf("%s: connect failed :(\n", conn->name);
return;
}
printf("%s: connected! sending request...\n", conn->name);
co_write(co, peer, buf, strlen(buf), NULL);
printf("%s: request sent!\n", conn->name);
printf("%s: reading response...\n", conn->name);
do {
memset(buf, 0, sizeof(buf));
co_read(co, peer, buf, BUFSIZE, &rsize);
printf("%s: got %d bytes\n", conn->name, rsize);
} while (rsize);
printf("%s: bye!\n", conn->name);
free(conn);
}
