Repeated example.

examples/c/repeated/Makefile

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+all:
+	gcc \
+	    -O2 \
+	    -Wall \
+	    -I../../../pbtools/c_source \
+	    -Igenerated \
+	    generated/*.c \
+	    ../../../pbtools/c_source/pbtools.c \
+	    main.c \
+	    -o main
+	./main
+
+generate:
+	rm -rf generated
+	mkdir -p generated
+	cd generated && \
+	    env PYTHONPATH=../../../.. \
+		python3 -m pbtools generate_c_source ../repeated.proto

examples/c/repeated/generated/repeated.c

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+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Erik Moqvist
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+/**
+ * This file was generated by pbtools.
+ */
+
+#include <limits.h>
+#include "repeated.h"
+
+#if CHAR_BIT != 8
+#    error "Number of bits in a char must be 8."
+#endif
+
+void coordinates_init(
+    struct coordinates_t *self_p,
+    struct pbtools_heap_t *heap_p)
+{
+    self_p->base.heap_p = heap_p;
+    self_p->xs.length = 0;
+    self_p->ys.length = 0;
+}
+
+void coordinates_encode_inner(
+    struct pbtools_encoder_t *encoder_p,
+    struct coordinates_t *self_p)
+{
+    pbtools_encoder_write_repeated_int32(encoder_p, 2, &self_p->ys);
+    pbtools_encoder_write_repeated_int32(encoder_p, 1, &self_p->xs);
+}
+
+void coordinates_decode_inner(
+    struct pbtools_decoder_t *decoder_p,
+    struct coordinates_t *self_p)
+{
+    int wire_type;
+    struct pbtools_repeated_info_t repeated_info_xs;
+    struct pbtools_repeated_info_t repeated_info_ys;
+
+    pbtools_repeated_info_init(&repeated_info_xs, 1, decoder_p);
+    pbtools_repeated_info_init(&repeated_info_ys, 2, decoder_p);
+
+    while (pbtools_decoder_available(decoder_p)) {
+        switch (pbtools_decoder_read_tag(decoder_p, &wire_type)) {
+
+        case 1:
+            pbtools_repeated_info_decode_int32(
+                &repeated_info_xs,
+                decoder_p,
+                wire_type);
+            break;
+
+        case 2:
+            pbtools_repeated_info_decode_int32(
+                &repeated_info_ys,
+                decoder_p,
+                wire_type);
+            break;
+
+        default:
+            pbtools_decoder_skip_field(decoder_p, wire_type);
+            break;
+        }
+    }
+
+    pbtools_decoder_decode_repeated_int32(
+        decoder_p,
+        &repeated_info_xs,
+        &self_p->xs);
+    pbtools_decoder_decode_repeated_int32(
+        decoder_p,
+        &repeated_info_ys,
+        &self_p->ys);
+}
+
+int coordinates_xs_alloc(
+    struct coordinates_t *self_p,
+    int length)
+{
+    return (pbtools_alloc_repeated_int32(
+                &self_p->base,
+                length,
+                &self_p->xs));
+}
+
+int coordinates_ys_alloc(
+    struct coordinates_t *self_p,
+    int length)
+{
+    return (pbtools_alloc_repeated_int32(
+                &self_p->base,
+                length,
+                &self_p->ys));
+}
+
+void coordinates_encode_repeated_inner(
+    struct pbtools_encoder_t *encoder_p,
+    int field_number,
+    struct coordinates_repeated_t *repeated_p)
+{
+    pbtools_encode_repeated_inner(
+        encoder_p,
+        field_number,
+        (struct pbtools_repeated_message_t *)repeated_p,
+        sizeof(struct coordinates_t),
+        (pbtools_message_encode_inner_t)coordinates_encode_inner);
+}
+
+void coordinates_decode_repeated_inner(
+    struct pbtools_repeated_info_t *repeated_info_p,
+    struct pbtools_decoder_t *decoder_p,
+    struct coordinates_repeated_t *repeated_p)
+{
+    pbtools_decode_repeated_inner(
+        repeated_info_p,
+        decoder_p,
+        (struct pbtools_repeated_message_t *)repeated_p,
+        sizeof(struct coordinates_t),
+        (pbtools_message_init_t)coordinates_init,
+        (pbtools_message_decode_inner_t)coordinates_decode_inner);
+}
+
+struct coordinates_t *
+coordinates_new(
+    void *workspace_p,
+    size_t size)
+{
+    return (pbtools_message_new(
+                workspace_p,
+                size,
+                sizeof(struct coordinates_t),
+                (pbtools_message_init_t)coordinates_init));
+}
+
+int coordinates_encode(
+    struct coordinates_t *self_p,
+    uint8_t *encoded_p,
+    size_t size)
+{
+    return (pbtools_message_encode(
+                &self_p->base,
+                encoded_p,
+                size,
+                (pbtools_message_encode_inner_t)coordinates_encode_inner));
+}
+
+int coordinates_decode(
+    struct coordinates_t *self_p,
+    const uint8_t *encoded_p,
+    size_t size)
+{
+    return (pbtools_message_decode(
+                &self_p->base,
+                encoded_p,
+                size,
+                (pbtools_message_decode_inner_t)coordinates_decode_inner));
+}

examples/c/repeated/generated/repeated.h

@@ -0,0 +1,108 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Erik Moqvist
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+/**
+ * This file was generated by pbtools.
+ */
+
+#ifndef REPEATED_H
+#define REPEATED_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "pbtools.h"
+
+/**
+ * Message Coordinates.
+ */
+struct coordinates_repeated_t {
+    int length;
+    struct coordinates_t *items_p;
+};
+
+struct coordinates_t {
+    struct pbtools_message_base_t base;
+    struct pbtools_repeated_int32_t xs;
+    struct pbtools_repeated_int32_t ys;
+};
+
+int coordinates_xs_alloc(
+    struct coordinates_t *self_p,
+    int length);
+
+int coordinates_ys_alloc(
+    struct coordinates_t *self_p,
+    int length);
+
+/**
+ * Encoding and decoding of Coordinates.
+ */
+struct coordinates_t *
+coordinates_new(
+    void *workspace_p,
+    size_t size);
+
+int coordinates_encode(
+    struct coordinates_t *self_p,
+    uint8_t *encoded_p,
+    size_t size);
+
+int coordinates_decode(
+    struct coordinates_t *self_p,
+    const uint8_t *encoded_p,
+    size_t size);
+
+/* Internal functions. Do not use! */
+
+void coordinates_init(
+    struct coordinates_t *self_p,
+    struct pbtools_heap_t *heap_p);
+
+void coordinates_encode_inner(
+    struct pbtools_encoder_t *encoder_p,
+    struct coordinates_t *self_p);
+
+void coordinates_decode_inner(
+    struct pbtools_decoder_t *decoder_p,
+    struct coordinates_t *self_p);
+
+void coordinates_encode_repeated_inner(
+    struct pbtools_encoder_t *encoder_p,
+    int field_number,
+    struct coordinates_repeated_t *repeated_p);
+
+void coordinates_decode_repeated_inner(
+    struct pbtools_repeated_info_t *repeated_info_p,
+    struct pbtools_decoder_t *decoder_p,
+    struct coordinates_repeated_t *repeated_p);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

examples/c/repeated/main.c

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+#include <stdio.h>
+#include "repeated.h"
+
+static int32_t xs[] = { 1, 3, 5, 7, 9 };
+
+int main(int argc, const char *argv[])
+{
+    int i;
+    int res;
+    int size;
+    uint8_t workspace[128];
+    uint8_t encoded[64];
+    struct coordinates_t *coordinates_p;
+
+    /* Encode. */
+    coordinates_p = coordinates_new(&workspace[0], sizeof(workspace));
+
+    if (coordinates_p == NULL) {
+        return (1);
+    }
+
+    /* Set the length and items. */
+    coordinates_p->xs.length = 5;
+    coordinates_p->xs.items_p = &xs[0];
+
+    /* Alternatively, allocate a buffer in the workspace. */
+    res = coordinates_ys_alloc(coordinates_p, 5);
+
+    if (res != 0) {
+        return (2);
+    }
+
+    coordinates_p->ys.items_p[0] = 0;
+    coordinates_p->ys.items_p[1] = 2;
+    coordinates_p->ys.items_p[2] = 4;
+    coordinates_p->ys.items_p[3] = 6;
+    coordinates_p->ys.items_p[4] = 8;
+
+    size = coordinates_encode(coordinates_p, &encoded[0], sizeof(encoded));
+
+    if (size < 0) {
+        return (3);
+    }
+
+    printf("Successfully encoded Coordinates into %d bytes.\n", size);
+
+    /* Decode. */
+    coordinates_p = coordinates_new(&workspace[0], sizeof(workspace));
+
+    if (coordinates_p == NULL) {
+        return (4);
+    }
+
+    size = coordinates_decode(coordinates_p, &encoded[0], size);
+
+    if (size < 0) {
+        return (5);
+    }
+
+    printf("Successfully decoded %d bytes into Coordinates.\n", size);
+
+    if (coordinates_p->xs.length != coordinates_p->ys.length) {
+        return (6);
+    }
+
+    for (i = 0; i < coordinates_p->xs.length; i++) {
+        printf("(%d, %d)\n",
+               (int)coordinates_p->xs.items_p[i],
+               (int)coordinates_p->ys.items_p[i]);
+    }
+
+    return (0);
+}

examples/c/repeated/repeated.proto

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+syntax = "proto3";
+
+message Coordinates {
+    repeated int32 xs = 1;
+    repeated int32 ys = 2;
+}