diff options
Diffstat (limited to 'CAN-binder/libs/nanopb/examples')
29 files changed, 0 insertions, 1316 deletions
diff --git a/CAN-binder/libs/nanopb/examples/cmake_simple/CMakeLists.txt b/CAN-binder/libs/nanopb/examples/cmake_simple/CMakeLists.txt deleted file mode 100644 index e5f33a0..0000000 --- a/CAN-binder/libs/nanopb/examples/cmake_simple/CMakeLists.txt +++ /dev/null @@ -1,16 +0,0 @@ -cmake_minimum_required(VERSION 2.8) -project(NANOPB_CMAKE_SIMPLE C) - -set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/../../extra) -find_package(Nanopb REQUIRED) -include_directories(${NANOPB_INCLUDE_DIRS}) - -nanopb_generate_cpp(PROTO_SRCS PROTO_HDRS simple.proto) -include_directories(${CMAKE_CURRENT_BINARY_DIR}) -#add_custom_target(generate_proto_sources DEPENDS ${PROTO_SRCS} ${PROTO_HDRS}) -set_source_files_properties(${PROTO_SRCS} ${PROTO_HDRS} - PROPERTIES GENERATED TRUE) - -set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Werror -g -O0") - -add_executable(simple simple.c ${PROTO_SRCS} ${PROTO_HDRS}) diff --git a/CAN-binder/libs/nanopb/examples/cmake_simple/README.txt b/CAN-binder/libs/nanopb/examples/cmake_simple/README.txt deleted file mode 100644 index aa0f3f3..0000000 --- a/CAN-binder/libs/nanopb/examples/cmake_simple/README.txt +++ /dev/null @@ -1,18 +0,0 @@ -Nanopb example "simple" using CMake -======================= - -This example is the same as the simple nanopb example but built using CMake. - -Example usage -------------- - -On Linux, create a build directory and then call cmake: - - nanopb/examples/cmake_simple$ mkdir build - nanopb/examples/cmake_simple$ cd build/ - nanopb/examples/cmake_simple/build$ cmake .. - nanopb/examples/cmake_simple/build$ make - -After that, you can run it with the command: ./simple - -On other platforms supported by CMake, refer to CMake instructions. diff --git a/CAN-binder/libs/nanopb/examples/cmake_simple/simple.c b/CAN-binder/libs/nanopb/examples/cmake_simple/simple.c deleted file mode 100644 index 1f6b137..0000000 --- a/CAN-binder/libs/nanopb/examples/cmake_simple/simple.c +++ /dev/null @@ -1,71 +0,0 @@ -#include <stdio.h> -#include <pb_encode.h> -#include <pb_decode.h> -#include "simple.pb.h" - -int main() -{ - /* This is the buffer where we will store our message. */ - uint8_t buffer[128]; - size_t message_length; - bool status; - - /* Encode our message */ - { - /* Allocate space on the stack to store the message data. - * - * Nanopb generates simple struct definitions for all the messages. - * - check out the contents of simple.pb.h! - * It is a good idea to always initialize your structures - * so that you do not have garbage data from RAM in there. - */ - SimpleMessage message = SimpleMessage_init_zero; - - /* Create a stream that will write to our buffer. */ - pb_ostream_t stream = pb_ostream_from_buffer(buffer, sizeof(buffer)); - - /* Fill in the lucky number */ - message.lucky_number = 13; - - /* Now we are ready to encode the message! */ - status = pb_encode(&stream, SimpleMessage_fields, &message); - message_length = stream.bytes_written; - - /* Then just check for any errors.. */ - if (!status) - { - printf("Encoding failed: %s\n", PB_GET_ERROR(&stream)); - return 1; - } - } - - /* Now we could transmit the message over network, store it in a file or - * wrap it to a pigeon's leg. - */ - - /* But because we are lazy, we will just decode it immediately. */ - - { - /* Allocate space for the decoded message. */ - SimpleMessage message = SimpleMessage_init_zero; - - /* Create a stream that reads from the buffer. */ - pb_istream_t stream = pb_istream_from_buffer(buffer, message_length); - - /* Now we are ready to decode the message. */ - status = pb_decode(&stream, SimpleMessage_fields, &message); - - /* Check for errors... */ - if (!status) - { - printf("Decoding failed: %s\n", PB_GET_ERROR(&stream)); - return 1; - } - - /* Print the data contained in the message. */ - printf("Your lucky number was %d!\n", message.lucky_number); - } - - return 0; -} - diff --git a/CAN-binder/libs/nanopb/examples/cmake_simple/simple.proto b/CAN-binder/libs/nanopb/examples/cmake_simple/simple.proto deleted file mode 100644 index 5c73a3b..0000000 --- a/CAN-binder/libs/nanopb/examples/cmake_simple/simple.proto +++ /dev/null @@ -1,9 +0,0 @@ -// A very simple protocol definition, consisting of only -// one message. - -syntax = "proto2"; - -message SimpleMessage { - required int32 lucky_number = 1; -} - diff --git a/CAN-binder/libs/nanopb/examples/network_server/Makefile b/CAN-binder/libs/nanopb/examples/network_server/Makefile deleted file mode 100644 index 2c7639a..0000000 --- a/CAN-binder/libs/nanopb/examples/network_server/Makefile +++ /dev/null @@ -1,17 +0,0 @@ -# Include the nanopb provided Makefile rules -include ../../extra/nanopb.mk - -# Compiler flags to enable all warnings & debug info -CFLAGS = -ansi -Wall -Werror -g -O0 -CFLAGS += -I$(NANOPB_DIR) - -all: server client - -.SUFFIXES: - -clean: - rm -f server client fileproto.pb.c fileproto.pb.h - -%: %.c common.c fileproto.pb.c - $(CC) $(CFLAGS) -o $@ $^ $(NANOPB_CORE) - diff --git a/CAN-binder/libs/nanopb/examples/network_server/README.txt b/CAN-binder/libs/nanopb/examples/network_server/README.txt deleted file mode 100644 index 7bdcbed..0000000 --- a/CAN-binder/libs/nanopb/examples/network_server/README.txt +++ /dev/null @@ -1,60 +0,0 @@ -Nanopb example "network_server" -=============================== - -This example demonstrates the use of nanopb to communicate over network -connections. It consists of a server that sends file listings, and of -a client that requests the file list from the server. - -Example usage -------------- - -user@host:~/nanopb/examples/network_server$ make # Build the example -protoc -ofileproto.pb fileproto.proto -python ../../generator/nanopb_generator.py fileproto.pb -Writing to fileproto.pb.h and fileproto.pb.c -cc -ansi -Wall -Werror -I .. -g -O0 -I../.. -o server server.c - ../../pb_decode.c ../../pb_encode.c fileproto.pb.c common.c -cc -ansi -Wall -Werror -I .. -g -O0 -I../.. -o client client.c - ../../pb_decode.c ../../pb_encode.c fileproto.pb.c common.c - -user@host:~/nanopb/examples/network_server$ ./server & # Start the server on background -[1] 24462 - -petteri@oddish:~/nanopb/examples/network_server$ ./client /bin # Request the server to list /bin -Got connection. -Listing directory: /bin -1327119 bzdiff -1327126 bzless -1327147 ps -1327178 ntfsmove -1327271 mv -1327187 mount -1327259 false -1327266 tempfile -1327285 zfgrep -1327165 gzexe -1327204 nc.openbsd -1327260 uname - - -Details of implementation -------------------------- -fileproto.proto contains the portable Google Protocol Buffers protocol definition. -It could be used as-is to implement a server or a client in any other language, for -example Python or Java. - -fileproto.options contains the nanopb-specific options for the protocol file. This -sets the amount of space allocated for file names when decoding messages. - -common.c/h contains functions that allow nanopb to read and write directly from -network socket. This way there is no need to allocate a separate buffer to store -the message. - -server.c contains the code to open a listening socket, to respond to clients and -to list directory contents. - -client.c contains the code to connect to a server, to send a request and to print -the response message. - -The code is implemented using the POSIX socket api, but it should be easy enough -to port into any other socket api, such as lwip. diff --git a/CAN-binder/libs/nanopb/examples/network_server/client.c b/CAN-binder/libs/nanopb/examples/network_server/client.c deleted file mode 100644 index 00f6dab..0000000 --- a/CAN-binder/libs/nanopb/examples/network_server/client.c +++ /dev/null @@ -1,142 +0,0 @@ -/* This is a simple TCP client that connects to port 1234 and prints a list - * of files in a given directory. - * - * It directly deserializes and serializes messages from network, minimizing - * memory use. - * - * For flexibility, this example is implemented using posix api. - * In a real embedded system you would typically use some other kind of - * a communication and filesystem layer. - */ - -#include <sys/socket.h> -#include <sys/types.h> -#include <netinet/in.h> -#include <unistd.h> -#include <dirent.h> -#include <stdio.h> -#include <string.h> - -#include <pb_encode.h> -#include <pb_decode.h> - -#include "fileproto.pb.h" -#include "common.h" - -/* This callback function will be called once for each filename received - * from the server. The filenames will be printed out immediately, so that - * no memory has to be allocated for them. - */ -bool printfile_callback(pb_istream_t *stream, const pb_field_t *field, void **arg) -{ - FileInfo fileinfo = {}; - - if (!pb_decode(stream, FileInfo_fields, &fileinfo)) - return false; - - printf("%-10lld %s\n", (long long)fileinfo.inode, fileinfo.name); - - return true; -} - -/* This function sends a request to socket 'fd' to list the files in - * directory given in 'path'. The results received from server will - * be printed to stdout. - */ -bool listdir(int fd, char *path) -{ - /* Construct and send the request to server */ - { - ListFilesRequest request = {}; - pb_ostream_t output = pb_ostream_from_socket(fd); - uint8_t zero = 0; - - /* In our protocol, path is optional. If it is not given, - * the server will list the root directory. */ - if (path == NULL) - { - request.has_path = false; - } - else - { - request.has_path = true; - if (strlen(path) + 1 > sizeof(request.path)) - { - fprintf(stderr, "Too long path.\n"); - return false; - } - - strcpy(request.path, path); - } - - /* Encode the request. It is written to the socket immediately - * through our custom stream. */ - if (!pb_encode(&output, ListFilesRequest_fields, &request)) - { - fprintf(stderr, "Encoding failed: %s\n", PB_GET_ERROR(&output)); - return false; - } - - /* We signal the end of request with a 0 tag. */ - pb_write(&output, &zero, 1); - } - - /* Read back the response from server */ - { - ListFilesResponse response = {}; - pb_istream_t input = pb_istream_from_socket(fd); - - /* Give a pointer to our callback function, which will handle the - * filenames as they arrive. */ - response.file.funcs.decode = &printfile_callback; - - if (!pb_decode(&input, ListFilesResponse_fields, &response)) - { - fprintf(stderr, "Decode failed: %s\n", PB_GET_ERROR(&input)); - return false; - } - - /* If the message from server decodes properly, but directory was - * not found on server side, we get path_error == true. */ - if (response.path_error) - { - fprintf(stderr, "Server reported error.\n"); - return false; - } - } - - return true; -} - -int main(int argc, char **argv) -{ - int sockfd; - struct sockaddr_in servaddr; - char *path = NULL; - - if (argc > 1) - path = argv[1]; - - sockfd = socket(AF_INET, SOCK_STREAM, 0); - - /* Connect to server running on localhost:1234 */ - memset(&servaddr, 0, sizeof(servaddr)); - servaddr.sin_family = AF_INET; - servaddr.sin_addr.s_addr = htonl(INADDR_LOOPBACK); - servaddr.sin_port = htons(1234); - - if (connect(sockfd, (struct sockaddr *)&servaddr, sizeof(servaddr)) != 0) - { - perror("connect"); - return 1; - } - - /* Send the directory listing request */ - if (!listdir(sockfd, path)) - return 2; - - /* Close connection */ - close(sockfd); - - return 0; -} diff --git a/CAN-binder/libs/nanopb/examples/network_server/common.c b/CAN-binder/libs/nanopb/examples/network_server/common.c deleted file mode 100644 index 04a5aa8..0000000 --- a/CAN-binder/libs/nanopb/examples/network_server/common.c +++ /dev/null @@ -1,40 +0,0 @@ -/* Simple binding of nanopb streams to TCP sockets. - */ - -#include <sys/socket.h> -#include <sys/types.h> -#include <pb_encode.h> -#include <pb_decode.h> - -#include "common.h" - -static bool write_callback(pb_ostream_t *stream, const uint8_t *buf, size_t count) -{ - int fd = (intptr_t)stream->state; - return send(fd, buf, count, 0) == count; -} - -static bool read_callback(pb_istream_t *stream, uint8_t *buf, size_t count) -{ - int fd = (intptr_t)stream->state; - int result; - - result = recv(fd, buf, count, MSG_WAITALL); - - if (result == 0) - stream->bytes_left = 0; /* EOF */ - - return result == count; -} - -pb_ostream_t pb_ostream_from_socket(int fd) -{ - pb_ostream_t stream = {&write_callback, (void*)(intptr_t)fd, SIZE_MAX, 0}; - return stream; -} - -pb_istream_t pb_istream_from_socket(int fd) -{ - pb_istream_t stream = {&read_callback, (void*)(intptr_t)fd, SIZE_MAX}; - return stream; -} diff --git a/CAN-binder/libs/nanopb/examples/network_server/common.h b/CAN-binder/libs/nanopb/examples/network_server/common.h deleted file mode 100644 index 8dab3b7..0000000 --- a/CAN-binder/libs/nanopb/examples/network_server/common.h +++ /dev/null @@ -1,9 +0,0 @@ -#ifndef _PB_EXAMPLE_COMMON_H_ -#define _PB_EXAMPLE_COMMON_H_ - -#include <pb.h> - -pb_ostream_t pb_ostream_from_socket(int fd); -pb_istream_t pb_istream_from_socket(int fd); - -#endif
\ No newline at end of file diff --git a/CAN-binder/libs/nanopb/examples/network_server/fileproto.options b/CAN-binder/libs/nanopb/examples/network_server/fileproto.options deleted file mode 100644 index 29a2ab0..0000000 --- a/CAN-binder/libs/nanopb/examples/network_server/fileproto.options +++ /dev/null @@ -1,13 +0,0 @@ -# This file defines the nanopb-specific options for the messages defined -# in fileproto.proto. -# -# If you come from high-level programming background, the hardcoded -# maximum lengths may disgust you. However, if your microcontroller only -# has a few kB of ram to begin with, setting reasonable limits for -# filenames is ok. -# -# On the other hand, using the callback interface, it is not necessary -# to set a limit on the number of files in the response. - -ListFilesRequest.path max_size:128 -FileInfo.name max_size:128 diff --git a/CAN-binder/libs/nanopb/examples/network_server/fileproto.proto b/CAN-binder/libs/nanopb/examples/network_server/fileproto.proto deleted file mode 100644 index 5640b8d..0000000 --- a/CAN-binder/libs/nanopb/examples/network_server/fileproto.proto +++ /dev/null @@ -1,20 +0,0 @@ -// This defines protocol for a simple server that lists files. -// -// See also the nanopb-specific options in fileproto.options. - -syntax = "proto2"; - -message ListFilesRequest { - optional string path = 1 [default = "/"]; -} - -message FileInfo { - required uint64 inode = 1; - required string name = 2; -} - -message ListFilesResponse { - optional bool path_error = 1 [default = false]; - repeated FileInfo file = 2; -} - diff --git a/CAN-binder/libs/nanopb/examples/network_server/server.c b/CAN-binder/libs/nanopb/examples/network_server/server.c deleted file mode 100644 index 46a5f38..0000000 --- a/CAN-binder/libs/nanopb/examples/network_server/server.c +++ /dev/null @@ -1,158 +0,0 @@ -/* This is a simple TCP server that listens on port 1234 and provides lists - * of files to clients, using a protocol defined in file_server.proto. - * - * It directly deserializes and serializes messages from network, minimizing - * memory use. - * - * For flexibility, this example is implemented using posix api. - * In a real embedded system you would typically use some other kind of - * a communication and filesystem layer. - */ - -#include <sys/socket.h> -#include <sys/types.h> -#include <netinet/in.h> -#include <unistd.h> -#include <dirent.h> -#include <stdio.h> -#include <string.h> - -#include <pb_encode.h> -#include <pb_decode.h> - -#include "fileproto.pb.h" -#include "common.h" - -/* This callback function will be called once during the encoding. - * It will write out any number of FileInfo entries, without consuming unnecessary memory. - * This is accomplished by fetching the filenames one at a time and encoding them - * immediately. - */ -bool listdir_callback(pb_ostream_t *stream, const pb_field_t *field, void * const *arg) -{ - DIR *dir = (DIR*) *arg; - struct dirent *file; - FileInfo fileinfo = {}; - - while ((file = readdir(dir)) != NULL) - { - fileinfo.inode = file->d_ino; - strncpy(fileinfo.name, file->d_name, sizeof(fileinfo.name)); - fileinfo.name[sizeof(fileinfo.name) - 1] = '\0'; - - /* This encodes the header for the field, based on the constant info - * from pb_field_t. */ - if (!pb_encode_tag_for_field(stream, field)) - return false; - - /* This encodes the data for the field, based on our FileInfo structure. */ - if (!pb_encode_submessage(stream, FileInfo_fields, &fileinfo)) - return false; - } - - return true; -} - -/* Handle one arriving client connection. - * Clients are expected to send a ListFilesRequest, terminated by a '0'. - * Server will respond with a ListFilesResponse message. - */ -void handle_connection(int connfd) -{ - DIR *directory = NULL; - - /* Decode the message from the client and open the requested directory. */ - { - ListFilesRequest request = {}; - pb_istream_t input = pb_istream_from_socket(connfd); - - if (!pb_decode(&input, ListFilesRequest_fields, &request)) - { - printf("Decode failed: %s\n", PB_GET_ERROR(&input)); - return; - } - - directory = opendir(request.path); - printf("Listing directory: %s\n", request.path); - } - - /* List the files in the directory and transmit the response to client */ - { - ListFilesResponse response = {}; - pb_ostream_t output = pb_ostream_from_socket(connfd); - - if (directory == NULL) - { - perror("opendir"); - - /* Directory was not found, transmit error status */ - response.has_path_error = true; - response.path_error = true; - response.file.funcs.encode = NULL; - } - else - { - /* Directory was found, transmit filenames */ - response.has_path_error = false; - response.file.funcs.encode = &listdir_callback; - response.file.arg = directory; - } - - if (!pb_encode(&output, ListFilesResponse_fields, &response)) - { - printf("Encoding failed: %s\n", PB_GET_ERROR(&output)); - } - } - - if (directory != NULL) - closedir(directory); -} - -int main(int argc, char **argv) -{ - int listenfd, connfd; - struct sockaddr_in servaddr; - int reuse = 1; - - /* Listen on localhost:1234 for TCP connections */ - listenfd = socket(AF_INET, SOCK_STREAM, 0); - setsockopt(listenfd, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof(reuse)); - - memset(&servaddr, 0, sizeof(servaddr)); - servaddr.sin_family = AF_INET; - servaddr.sin_addr.s_addr = htonl(INADDR_LOOPBACK); - servaddr.sin_port = htons(1234); - if (bind(listenfd, (struct sockaddr*)&servaddr, sizeof(servaddr)) != 0) - { - perror("bind"); - return 1; - } - - if (listen(listenfd, 5) != 0) - { - perror("listen"); - return 1; - } - - for(;;) - { - /* Wait for a client */ - connfd = accept(listenfd, NULL, NULL); - - if (connfd < 0) - { - perror("accept"); - return 1; - } - - printf("Got connection.\n"); - - handle_connection(connfd); - - printf("Closing connection.\n"); - - close(connfd); - } - - return 0; -} diff --git a/CAN-binder/libs/nanopb/examples/simple/Makefile b/CAN-binder/libs/nanopb/examples/simple/Makefile deleted file mode 100644 index 970a865..0000000 --- a/CAN-binder/libs/nanopb/examples/simple/Makefile +++ /dev/null @@ -1,22 +0,0 @@ -# Include the nanopb provided Makefile rules -include ../../extra/nanopb.mk - -# Compiler flags to enable all warnings & debug info -CFLAGS = -Wall -Werror -g -O0 -CFLAGS += -I$(NANOPB_DIR) - -# C source code files that are required -CSRC = simple.c # The main program -CSRC += simple.pb.c # The compiled protocol definition -CSRC += $(NANOPB_DIR)/pb_encode.c # The nanopb encoder -CSRC += $(NANOPB_DIR)/pb_decode.c # The nanopb decoder -CSRC += $(NANOPB_DIR)/pb_common.c # The nanopb common parts - -# Build rule for the main program -simple: $(CSRC) - $(CC) $(CFLAGS) -osimple $(CSRC) - -# Build rule for the protocol -simple.pb.c: simple.proto - $(PROTOC) $(PROTOC_OPTS) --nanopb_out=. simple.proto - diff --git a/CAN-binder/libs/nanopb/examples/simple/README.txt b/CAN-binder/libs/nanopb/examples/simple/README.txt deleted file mode 100644 index ee77bfc..0000000 --- a/CAN-binder/libs/nanopb/examples/simple/README.txt +++ /dev/null @@ -1,29 +0,0 @@ -Nanopb example "simple" -======================= - -This example demonstrates the very basic use of nanopb. It encodes and -decodes a simple message. - -The code uses four different API functions: - - * pb_ostream_from_buffer() to declare the output buffer that is to be used - * pb_encode() to encode a message - * pb_istream_from_buffer() to declare the input buffer that is to be used - * pb_decode() to decode a message - -Example usage -------------- - -On Linux, simply type "make" to build the example. After that, you can -run it with the command: ./simple - -On other platforms, you first have to compile the protocol definition using -the following command:: - - ../../generator-bin/protoc --nanopb_out=. simple.proto - -After that, add the following four files to your project and compile: - - simple.c simple.pb.c pb_encode.c pb_decode.c - - diff --git a/CAN-binder/libs/nanopb/examples/simple/simple.c b/CAN-binder/libs/nanopb/examples/simple/simple.c deleted file mode 100644 index 1f6b137..0000000 --- a/CAN-binder/libs/nanopb/examples/simple/simple.c +++ /dev/null @@ -1,71 +0,0 @@ -#include <stdio.h> -#include <pb_encode.h> -#include <pb_decode.h> -#include "simple.pb.h" - -int main() -{ - /* This is the buffer where we will store our message. */ - uint8_t buffer[128]; - size_t message_length; - bool status; - - /* Encode our message */ - { - /* Allocate space on the stack to store the message data. - * - * Nanopb generates simple struct definitions for all the messages. - * - check out the contents of simple.pb.h! - * It is a good idea to always initialize your structures - * so that you do not have garbage data from RAM in there. - */ - SimpleMessage message = SimpleMessage_init_zero; - - /* Create a stream that will write to our buffer. */ - pb_ostream_t stream = pb_ostream_from_buffer(buffer, sizeof(buffer)); - - /* Fill in the lucky number */ - message.lucky_number = 13; - - /* Now we are ready to encode the message! */ - status = pb_encode(&stream, SimpleMessage_fields, &message); - message_length = stream.bytes_written; - - /* Then just check for any errors.. */ - if (!status) - { - printf("Encoding failed: %s\n", PB_GET_ERROR(&stream)); - return 1; - } - } - - /* Now we could transmit the message over network, store it in a file or - * wrap it to a pigeon's leg. - */ - - /* But because we are lazy, we will just decode it immediately. */ - - { - /* Allocate space for the decoded message. */ - SimpleMessage message = SimpleMessage_init_zero; - - /* Create a stream that reads from the buffer. */ - pb_istream_t stream = pb_istream_from_buffer(buffer, message_length); - - /* Now we are ready to decode the message. */ - status = pb_decode(&stream, SimpleMessage_fields, &message); - - /* Check for errors... */ - if (!status) - { - printf("Decoding failed: %s\n", PB_GET_ERROR(&stream)); - return 1; - } - - /* Print the data contained in the message. */ - printf("Your lucky number was %d!\n", message.lucky_number); - } - - return 0; -} - diff --git a/CAN-binder/libs/nanopb/examples/simple/simple.proto b/CAN-binder/libs/nanopb/examples/simple/simple.proto deleted file mode 100644 index 5c73a3b..0000000 --- a/CAN-binder/libs/nanopb/examples/simple/simple.proto +++ /dev/null @@ -1,9 +0,0 @@ -// A very simple protocol definition, consisting of only -// one message. - -syntax = "proto2"; - -message SimpleMessage { - required int32 lucky_number = 1; -} - diff --git a/CAN-binder/libs/nanopb/examples/using_double_on_avr/Makefile b/CAN-binder/libs/nanopb/examples/using_double_on_avr/Makefile deleted file mode 100644 index 874a64b..0000000 --- a/CAN-binder/libs/nanopb/examples/using_double_on_avr/Makefile +++ /dev/null @@ -1,24 +0,0 @@ -# Include the nanopb provided Makefile rules -include ../../extra/nanopb.mk - -# Compiler flags to enable all warnings & debug info -CFLAGS = -Wall -Werror -g -O0 -CFLAGS += -I$(NANOPB_DIR) - -all: run_tests - -.SUFFIXES: - -clean: - rm -f test_conversions encode_double decode_double doubleproto.pb.c doubleproto.pb.h - -test_conversions: test_conversions.c double_conversion.c - $(CC) $(CFLAGS) -o $@ $^ - -%: %.c double_conversion.c doubleproto.pb.c - $(CC) $(CFLAGS) -o $@ $^ $(NANOPB_CORE) - -run_tests: test_conversions encode_double decode_double - ./test_conversions - ./encode_double | ./decode_double - diff --git a/CAN-binder/libs/nanopb/examples/using_double_on_avr/README.txt b/CAN-binder/libs/nanopb/examples/using_double_on_avr/README.txt deleted file mode 100644 index d9fcdfc..0000000 --- a/CAN-binder/libs/nanopb/examples/using_double_on_avr/README.txt +++ /dev/null @@ -1,25 +0,0 @@ -Nanopb example "using_double_on_avr" -==================================== - -Some processors/compilers, such as AVR-GCC, do not support the double -datatype. Instead, they have sizeof(double) == 4. Because protocol -binary format uses the double encoding directly, this causes trouble -if the protocol in .proto requires double fields. - -This directory contains a solution to this problem. It uses uint64_t -to store the raw wire values, because its size is correct on all -platforms. The file double_conversion.c provides functions that -convert these values to/from floats, without relying on compiler -support. - -To use this method, you need to make some modifications to your code: - -1) Change all 'double' fields into 'fixed64' in the .proto. - -2) Whenever writing to a 'double' field, use float_to_double(). - -3) Whenever reading a 'double' field, use double_to_float(). - -The conversion routines are as accurate as the float datatype can -be. Furthermore, they should handle all special values (NaN, inf, denormalized -numbers) correctly. There are testcases in test_conversions.c. diff --git a/CAN-binder/libs/nanopb/examples/using_double_on_avr/decode_double.c b/CAN-binder/libs/nanopb/examples/using_double_on_avr/decode_double.c deleted file mode 100644 index 5802eca..0000000 --- a/CAN-binder/libs/nanopb/examples/using_double_on_avr/decode_double.c +++ /dev/null @@ -1,33 +0,0 @@ -/* Decodes a double value into a float variable. - * Used to read double values with AVR code, which doesn't support double directly. - */ - -#include <stdio.h> -#include <pb_decode.h> -#include "double_conversion.h" -#include "doubleproto.pb.h" - -int main() -{ - uint8_t buffer[32]; - size_t count = fread(buffer, 1, sizeof(buffer), stdin); - pb_istream_t stream = pb_istream_from_buffer(buffer, count); - - AVRDoubleMessage message; - pb_decode(&stream, AVRDoubleMessage_fields, &message); - - float v1 = double_to_float(message.field1); - float v2 = double_to_float(message.field2); - - printf("Values: %f %f\n", v1, v2); - - if (v1 == 1234.5678f && - v2 == 0.00001f) - { - return 0; - } - else - { - return 1; - } -} diff --git a/CAN-binder/libs/nanopb/examples/using_double_on_avr/double_conversion.c b/CAN-binder/libs/nanopb/examples/using_double_on_avr/double_conversion.c deleted file mode 100644 index cf79b9a..0000000 --- a/CAN-binder/libs/nanopb/examples/using_double_on_avr/double_conversion.c +++ /dev/null @@ -1,123 +0,0 @@ -/* Conversion routines for platforms that do not support 'double' directly. */ - -#include "double_conversion.h" -#include <math.h> - -typedef union { - float f; - uint32_t i; -} conversion_t; - -/* Note: IEE 754 standard specifies float formats as follows: - * Single precision: sign, 8-bit exp, 23-bit frac. - * Double precision: sign, 11-bit exp, 52-bit frac. - */ - -uint64_t float_to_double(float value) -{ - conversion_t in; - in.f = value; - uint8_t sign; - int16_t exponent; - uint64_t mantissa; - - /* Decompose input value */ - sign = (in.i >> 31) & 1; - exponent = ((in.i >> 23) & 0xFF) - 127; - mantissa = in.i & 0x7FFFFF; - - if (exponent == 128) - { - /* Special value (NaN etc.) */ - exponent = 1024; - } - else if (exponent == -127) - { - if (!mantissa) - { - /* Zero */ - exponent = -1023; - } - else - { - /* Denormalized */ - mantissa <<= 1; - while (!(mantissa & 0x800000)) - { - mantissa <<= 1; - exponent--; - } - mantissa &= 0x7FFFFF; - } - } - - /* Combine fields */ - mantissa <<= 29; - mantissa |= (uint64_t)(exponent + 1023) << 52; - mantissa |= (uint64_t)sign << 63; - - return mantissa; -} - -float double_to_float(uint64_t value) -{ - uint8_t sign; - int16_t exponent; - uint32_t mantissa; - conversion_t out; - - /* Decompose input value */ - sign = (value >> 63) & 1; - exponent = ((value >> 52) & 0x7FF) - 1023; - mantissa = (value >> 28) & 0xFFFFFF; /* Highest 24 bits */ - - /* Figure if value is in range representable by floats. */ - if (exponent == 1024) - { - /* Special value */ - exponent = 128; - } - else if (exponent > 127) - { - /* Too large */ - if (sign) - return -INFINITY; - else - return INFINITY; - } - else if (exponent < -150) - { - /* Too small */ - if (sign) - return -0.0f; - else - return 0.0f; - } - else if (exponent < -126) - { - /* Denormalized */ - mantissa |= 0x1000000; - mantissa >>= (-126 - exponent); - exponent = -127; - } - - /* Round off mantissa */ - mantissa = (mantissa + 1) >> 1; - - /* Check if mantissa went over 2.0 */ - if (mantissa & 0x800000) - { - exponent += 1; - mantissa &= 0x7FFFFF; - mantissa >>= 1; - } - - /* Combine fields */ - out.i = mantissa; - out.i |= (uint32_t)(exponent + 127) << 23; - out.i |= (uint32_t)sign << 31; - - return out.f; -} - - diff --git a/CAN-binder/libs/nanopb/examples/using_double_on_avr/double_conversion.h b/CAN-binder/libs/nanopb/examples/using_double_on_avr/double_conversion.h deleted file mode 100644 index 62b6a8a..0000000 --- a/CAN-binder/libs/nanopb/examples/using_double_on_avr/double_conversion.h +++ /dev/null @@ -1,26 +0,0 @@ -/* AVR-GCC does not have real double datatype. Instead its double - * is equal to float, i.e. 32 bit value. If you need to communicate - * with other systems that use double in their .proto files, you - * need to do some conversion. - * - * These functions use bitwise operations to mangle floats into doubles - * and then store them in uint64_t datatype. - */ - -#ifndef DOUBLE_CONVERSION -#define DOUBLE_CONVERSION - -#include <stdint.h> - -/* Convert native 4-byte float into a 8-byte double. */ -extern uint64_t float_to_double(float value); - -/* Convert 8-byte double into native 4-byte float. - * Values are rounded to nearest, 0.5 away from zero. - * Overflowing values are converted to Inf or -Inf. - */ -extern float double_to_float(uint64_t value); - - -#endif - diff --git a/CAN-binder/libs/nanopb/examples/using_double_on_avr/doubleproto.proto b/CAN-binder/libs/nanopb/examples/using_double_on_avr/doubleproto.proto deleted file mode 100644 index 72d3f9c..0000000 --- a/CAN-binder/libs/nanopb/examples/using_double_on_avr/doubleproto.proto +++ /dev/null @@ -1,15 +0,0 @@ -// A message containing doubles, as used by other applications. -syntax = "proto2"; - -message DoubleMessage { - required double field1 = 1; - required double field2 = 2; -} - -// A message containing doubles, but redefined using uint64_t. -// For use in AVR code. -message AVRDoubleMessage { - required fixed64 field1 = 1; - required fixed64 field2 = 2; -} - diff --git a/CAN-binder/libs/nanopb/examples/using_double_on_avr/encode_double.c b/CAN-binder/libs/nanopb/examples/using_double_on_avr/encode_double.c deleted file mode 100644 index cd532d4..0000000 --- a/CAN-binder/libs/nanopb/examples/using_double_on_avr/encode_double.c +++ /dev/null @@ -1,25 +0,0 @@ -/* Encodes a float value into a double on the wire. - * Used to emit doubles from AVR code, which doesn't support double directly. - */ - -#include <stdio.h> -#include <pb_encode.h> -#include "double_conversion.h" -#include "doubleproto.pb.h" - -int main() -{ - AVRDoubleMessage message = { - float_to_double(1234.5678f), - float_to_double(0.00001f) - }; - - uint8_t buffer[32]; - pb_ostream_t stream = pb_ostream_from_buffer(buffer, sizeof(buffer)); - - pb_encode(&stream, AVRDoubleMessage_fields, &message); - fwrite(buffer, 1, stream.bytes_written, stdout); - - return 0; -} - diff --git a/CAN-binder/libs/nanopb/examples/using_double_on_avr/test_conversions.c b/CAN-binder/libs/nanopb/examples/using_double_on_avr/test_conversions.c deleted file mode 100644 index 22620a6..0000000 --- a/CAN-binder/libs/nanopb/examples/using_double_on_avr/test_conversions.c +++ /dev/null @@ -1,56 +0,0 @@ -#include "double_conversion.h" -#include <math.h> -#include <stdio.h> - -static const double testvalues[] = { - 0.0, -0.0, 0.1, -0.1, - M_PI, -M_PI, 123456.789, -123456.789, - INFINITY, -INFINITY, NAN, INFINITY - INFINITY, - 1e38, -1e38, 1e39, -1e39, - 1e-38, -1e-38, 1e-39, -1e-39, - 3.14159e-37,-3.14159e-37, 3.14159e-43, -3.14159e-43, - 1e-60, -1e-60, 1e-45, -1e-45, - 0.99999999999999, -0.99999999999999, 127.999999999999, -127.999999999999 -}; - -#define TESTVALUES_COUNT (sizeof(testvalues)/sizeof(testvalues[0])) - -int main() -{ - int status = 0; - int i; - for (i = 0; i < TESTVALUES_COUNT; i++) - { - double orig = testvalues[i]; - float expected_float = (float)orig; - double expected_double = (double)expected_float; - - float got_float = double_to_float(*(uint64_t*)&orig); - uint64_t got_double = float_to_double(got_float); - - uint32_t e1 = *(uint32_t*)&expected_float; - uint32_t g1 = *(uint32_t*)&got_float; - uint64_t e2 = *(uint64_t*)&expected_double; - uint64_t g2 = got_double; - - if (g1 != e1) - { - printf("%3d double_to_float fail: %08x != %08x\n", i, g1, e1); - status = 1; - } - - if (g2 != e2) - { - printf("%3d float_to_double fail: %016llx != %016llx\n", i, - (unsigned long long)g2, - (unsigned long long)e2); - status = 1; - } - } - - return status; -} - - - - diff --git a/CAN-binder/libs/nanopb/examples/using_union_messages/Makefile b/CAN-binder/libs/nanopb/examples/using_union_messages/Makefile deleted file mode 100644 index 66396a0..0000000 --- a/CAN-binder/libs/nanopb/examples/using_union_messages/Makefile +++ /dev/null @@ -1,20 +0,0 @@ -# Include the nanopb provided Makefile rules -include ../../extra/nanopb.mk - -# Compiler flags to enable all warnings & debug info -CFLAGS = -ansi -Wall -Werror -g -O0 -CFLAGS += -I$(NANOPB_DIR) - -all: encode decode - ./encode 1 | ./decode - ./encode 2 | ./decode - ./encode 3 | ./decode - -.SUFFIXES: - -clean: - rm -f encode unionproto.pb.h unionproto.pb.c - -%: %.c unionproto.pb.c - $(CC) $(CFLAGS) -o $@ $^ $(NANOPB_CORE) - diff --git a/CAN-binder/libs/nanopb/examples/using_union_messages/README.txt b/CAN-binder/libs/nanopb/examples/using_union_messages/README.txt deleted file mode 100644 index 7a1e75d..0000000 --- a/CAN-binder/libs/nanopb/examples/using_union_messages/README.txt +++ /dev/null @@ -1,52 +0,0 @@ -Nanopb example "using_union_messages" -===================================== - -Union messages is a common technique in Google Protocol Buffers used to -represent a group of messages, only one of which is passed at a time. -It is described in Google's documentation: -https://developers.google.com/protocol-buffers/docs/techniques#union - -This directory contains an example on how to encode and decode union messages -with minimal memory usage. Usually, nanopb would allocate space to store -all of the possible messages at the same time, even though at most one of -them will be used at a time. - -By using some of the lower level nanopb APIs, we can manually generate the -top level message, so that we only need to allocate the one submessage that -we actually want. Similarly when decoding, we can manually read the tag of -the top level message, and only then allocate the memory for the submessage -after we already know its type. - - -Example usage -------------- - -Type `make` to run the example. It will build it and run commands like -following: - -./encode 1 | ./decode -Got MsgType1: 42 -./encode 2 | ./decode -Got MsgType2: true -./encode 3 | ./decode -Got MsgType3: 3 1415 - -This simply demonstrates that the "decode" program has correctly identified -the type of the received message, and managed to decode it. - - -Details of implementation -------------------------- - -unionproto.proto contains the protocol used in the example. It consists of -three messages: MsgType1, MsgType2 and MsgType3, which are collected together -into UnionMessage. - -encode.c takes one command line argument, which should be a number 1-3. It -then fills in and encodes the corresponding message, and writes it to stdout. - -decode.c reads a UnionMessage from stdin. Then it calls the function -decode_unionmessage_type() to determine the type of the message. After that, -the corresponding message is decoded and the contents of it printed to the -screen. - diff --git a/CAN-binder/libs/nanopb/examples/using_union_messages/decode.c b/CAN-binder/libs/nanopb/examples/using_union_messages/decode.c deleted file mode 100644 index b9f4af5..0000000 --- a/CAN-binder/libs/nanopb/examples/using_union_messages/decode.c +++ /dev/null @@ -1,96 +0,0 @@ -/* This program reads a message from stdin, detects its type and decodes it. - */ - -#include <stdio.h> -#include <string.h> -#include <stdlib.h> - -#include <pb_decode.h> -#include "unionproto.pb.h" - -/* This function reads manually the first tag from the stream and finds the - * corresponding message type. It doesn't yet decode the actual message. - * - * Returns a pointer to the MsgType_fields array, as an identifier for the - * message type. Returns null if the tag is of unknown type or an error occurs. - */ -const pb_field_t* decode_unionmessage_type(pb_istream_t *stream) -{ - pb_wire_type_t wire_type; - uint32_t tag; - bool eof; - - while (pb_decode_tag(stream, &wire_type, &tag, &eof)) - { - if (wire_type == PB_WT_STRING) - { - const pb_field_t *field; - for (field = UnionMessage_fields; field->tag != 0; field++) - { - if (field->tag == tag && (field->type & PB_LTYPE_SUBMESSAGE)) - { - /* Found our field. */ - return field->ptr; - } - } - } - - /* Wasn't our field.. */ - pb_skip_field(stream, wire_type); - } - - return NULL; -} - -bool decode_unionmessage_contents(pb_istream_t *stream, const pb_field_t fields[], void *dest_struct) -{ - pb_istream_t substream; - bool status; - if (!pb_make_string_substream(stream, &substream)) - return false; - - status = pb_decode(&substream, fields, dest_struct); - pb_close_string_substream(stream, &substream); - return status; -} - -int main() -{ - /* Read the data into buffer */ - uint8_t buffer[512]; - size_t count = fread(buffer, 1, sizeof(buffer), stdin); - pb_istream_t stream = pb_istream_from_buffer(buffer, count); - - const pb_field_t *type = decode_unionmessage_type(&stream); - bool status = false; - - if (type == MsgType1_fields) - { - MsgType1 msg = {}; - status = decode_unionmessage_contents(&stream, MsgType1_fields, &msg); - printf("Got MsgType1: %d\n", msg.value); - } - else if (type == MsgType2_fields) - { - MsgType2 msg = {}; - status = decode_unionmessage_contents(&stream, MsgType2_fields, &msg); - printf("Got MsgType2: %s\n", msg.value ? "true" : "false"); - } - else if (type == MsgType3_fields) - { - MsgType3 msg = {}; - status = decode_unionmessage_contents(&stream, MsgType3_fields, &msg); - printf("Got MsgType3: %d %d\n", msg.value1, msg.value2); - } - - if (!status) - { - printf("Decode failed: %s\n", PB_GET_ERROR(&stream)); - return 1; - } - - return 0; -} - - - diff --git a/CAN-binder/libs/nanopb/examples/using_union_messages/encode.c b/CAN-binder/libs/nanopb/examples/using_union_messages/encode.c deleted file mode 100644 index e124bf9..0000000 --- a/CAN-binder/libs/nanopb/examples/using_union_messages/encode.c +++ /dev/null @@ -1,85 +0,0 @@ -/* This program takes a command line argument and encodes a message in - * one of MsgType1, MsgType2 or MsgType3. - */ - -#include <stdio.h> -#include <string.h> -#include <stdlib.h> - -#include <pb_encode.h> -#include "unionproto.pb.h" - -/* This function is the core of the union encoding process. It handles - * the top-level pb_field_t array manually, in order to encode a correct - * field tag before the message. The pointer to MsgType_fields array is - * used as an unique identifier for the message type. - */ -bool encode_unionmessage(pb_ostream_t *stream, const pb_field_t messagetype[], const void *message) -{ - const pb_field_t *field; - for (field = UnionMessage_fields; field->tag != 0; field++) - { - if (field->ptr == messagetype) - { - /* This is our field, encode the message using it. */ - if (!pb_encode_tag_for_field(stream, field)) - return false; - - return pb_encode_submessage(stream, messagetype, message); - } - } - - /* Didn't find the field for messagetype */ - return false; -} - -int main(int argc, char **argv) -{ - if (argc != 2) - { - fprintf(stderr, "Usage: %s (1|2|3)\n", argv[0]); - return 1; - } - - uint8_t buffer[512]; - pb_ostream_t stream = pb_ostream_from_buffer(buffer, sizeof(buffer)); - - bool status = false; - int msgtype = atoi(argv[1]); - if (msgtype == 1) - { - /* Send message of type 1 */ - MsgType1 msg = {42}; - status = encode_unionmessage(&stream, MsgType1_fields, &msg); - } - else if (msgtype == 2) - { - /* Send message of type 2 */ - MsgType2 msg = {true}; - status = encode_unionmessage(&stream, MsgType2_fields, &msg); - } - else if (msgtype == 3) - { - /* Send message of type 3 */ - MsgType3 msg = {3, 1415}; - status = encode_unionmessage(&stream, MsgType3_fields, &msg); - } - else - { - fprintf(stderr, "Unknown message type: %d\n", msgtype); - return 2; - } - - if (!status) - { - fprintf(stderr, "Encoding failed!\n"); - return 3; - } - else - { - fwrite(buffer, 1, stream.bytes_written, stdout); - return 0; /* Success */ - } -} - - diff --git a/CAN-binder/libs/nanopb/examples/using_union_messages/unionproto.proto b/CAN-binder/libs/nanopb/examples/using_union_messages/unionproto.proto deleted file mode 100644 index 209df0d..0000000 --- a/CAN-binder/libs/nanopb/examples/using_union_messages/unionproto.proto +++ /dev/null @@ -1,32 +0,0 @@ -// This is an example of how to handle 'union' style messages -// with nanopb, without allocating memory for all the message types. -// -// There is no official type in Protocol Buffers for describing unions, -// but they are commonly implemented by filling out exactly one of -// several optional fields. - -syntax = "proto2"; - -message MsgType1 -{ - required int32 value = 1; -} - -message MsgType2 -{ - required bool value = 1; -} - -message MsgType3 -{ - required int32 value1 = 1; - required int32 value2 = 2; -} - -message UnionMessage -{ - optional MsgType1 msg1 = 1; - optional MsgType2 msg2 = 2; - optional MsgType3 msg3 = 3; -} - |