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more comments in example sml_server

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This commit is contained in:
Juri Glass 2011-07-13 18:15:39 +02:00
parent 65d5370d12
commit 82c68e8770
1 changed files with 25 additions and 19 deletions
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44
examples/sml_server.c
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@ -47,8 +47,7 @@ int serial_port_open(const char* device) {
tcgetattr( fd, &config ) ;
// set 8-N-1
config.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP
| INLCR | IGNCR | ICRNL | IXON);
config.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL | IXON);
config.c_oflag &= ~OPOST;
config.c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN);
config.c_cflag &= ~(CSIZE | PARENB | PARODD | CSTOPB);
@ -63,25 +62,32 @@ int serial_port_open(const char* device) {
}
void transport_receiver(unsigned char *buffer, size_t buffer_len) {
// the buffer contains the whole message, with transport escape sequences.
// these escape sequences are stripped here.
sml_file *file = sml_file_parse(buffer + 8, buffer_len - 16);
// the sml file is parsed
sml_file_print(file);
// all elements returned by parsing functions must be free'd
sml_file_free(file);
// the buffer contains the whole message, with transport escape sequences.
// these escape sequences are stripped here.
sml_file *file = sml_file_parse(buffer + 8, buffer_len - 16);
// the sml file is parsed now
// read here some values ..
// this prints some information about the file
sml_file_print(file);
// free the malloc'd memory
sml_file_free(file);
}
int main(int argc, char **argv) {
char *device = "/dev/cu.usbserial";
// this example assumes that a EDL21 meter sending SML messages via a
// serial device. Adjust as needed.
char *device = "/dev/cu.usbserial";
int fd = serial_port_open(device);
// this is a blocking call
sml_transport_listen(fd, &transport_receiver);
close(fd);
return 0;
if (fd < 0) {
// listen on the serial device, this call is blocking.
sml_transport_listen(fd, &transport_receiver);
close(fd);
}
return 0;
}