diff options
Diffstat (limited to 'client/examples')
-rw-r--r-- | client/examples/puzbus-hello-world.cpp | 67 |
1 files changed, 0 insertions, 67 deletions
diff --git a/client/examples/puzbus-hello-world.cpp b/client/examples/puzbus-hello-world.cpp deleted file mode 100644 index dcc965b..0000000 --- a/client/examples/puzbus-hello-world.cpp +++ /dev/null @@ -1,67 +0,0 @@ -#include <cstdio> -#include <cstdlib> -#include <cstring> -#include <unistd.h> - -#include "puzbusv1.h" - -int send_message() { - const char* data = "Test message data!"; - struct pb_msg output = { - .addr = 0x39, - .data = (char*) data, - .length = strlen(data), - }; - - char* packed; - size_t size; - if (!pb_write(&output, &packed, &size)) { - printf("error writing!\n"); - return EXIT_FAILURE; - } - - fwrite(packed, sizeof(packed[0]), size, stdout); - fflush(stdout); - - return EXIT_SUCCESS; -} - -int read_message() { - freopen(NULL, "rb", stdin); // allow binary on stdin - struct pb_msg input; - - char buf[4]; // extremely small buffer to test chunked message parsing - size_t bytes = 0; - - while ((bytes = fread(buf, sizeof(buf[0]), sizeof(buf), stdin)) > 0) { - int ret = pb_read(&input, buf, bytes); - - // header read error - if (ret < 0) { - printf("error reading!\n"); - return EXIT_FAILURE; - } - - // continue reading if more bytes needed... - if (ret > 0) continue; - - // message read completely! - printf("address: 0x%02x\n", input.addr); - printf("data: \"%.*s\"\n", input.length, input.data); - free(input.data); - return EXIT_SUCCESS; - } - - // if we reach this point, data was read but it did not contain a complete - // message, and is thus considered a failure - return EXIT_FAILURE; -} - -int main() { - if (!isatty(fileno(stdout))) return send_message(); - if (!isatty(fileno(stdin))) return read_message(); - - printf("please pipe some data in or out to use this program\n"); - return EXIT_SUCCESS; -} - |