Import of the watch repository from Pebble

third_party/nanopb/tests/basic_stream/decode_stream.c

@@ -0,0 +1,87 @@
+/* Same as test_decode1 but reads from stdin directly.
+ */
+
+#include <stdio.h>
+#include <pb_decode.h>
+#include "person.pb.h"
+#include "test_helpers.h"
+
+/* This function is called once from main(), it handles
+   the decoding and printing.
+   Ugly copy-paste from test_decode1.c. */
+bool print_person(pb_istream_t *stream)
+{
+    int i;
+    Person person = Person_init_zero;
+    
+    if (!pb_decode(stream, Person_fields, &person))
+        return false;
+    
+    /* Now the decoding is done, rest is just to print stuff out. */
+
+    printf("name: \"%s\"\n", person.name);
+    printf("id: %ld\n", (long)person.id);
+    
+    if (person.has_email)
+        printf("email: \"%s\"\n", person.email);
+    
+    for (i = 0; i < person.phone_count; i++)
+    {
+        Person_PhoneNumber *phone = &person.phone[i];
+        printf("phone {\n");
+        printf("  number: \"%s\"\n", phone->number);
+        
+        if (phone->has_type)
+        {
+            switch (phone->type)
+            {
+                case Person_PhoneType_WORK:
+                    printf("  type: WORK\n");
+                    break;
+                
+                case Person_PhoneType_HOME:
+                    printf("  type: HOME\n");
+                    break;
+                
+                case Person_PhoneType_MOBILE:
+                    printf("  type: MOBILE\n");
+                    break;
+            }
+        }
+        printf("}\n");
+    }
+    
+    return true;
+}
+
+/* This binds the pb_istream_t to stdin */
+bool callback(pb_istream_t *stream, uint8_t *buf, size_t count)
+{
+    FILE *file = (FILE*)stream->state;
+    size_t len = fread(buf, 1, count, file);
+    
+    if (len == count)
+    {
+        return true;
+    }
+    else
+    {
+        stream->bytes_left = 0;
+        return false;
+    }
+}
+
+int main()
+{
+    pb_istream_t stream = {&callback, NULL, SIZE_MAX};
+    stream.state = stdin;
+    SET_BINARY_MODE(stdin);
+
+    if (!print_person(&stream))
+    {
+        printf("Parsing failed: %s\n", PB_GET_ERROR(&stream));
+        return 1;
+    } else {
+        return 0;
+    }
+}