Making code ansi-compatible

git-svn-id: https://svn.kapsi.fi/jpa/nanopb@944 e3a754e5-d11d-0410-8d38-ebb782a927b9

1 files changed, 55 insertions, 72 deletions

diff --git a/pb.h b/pb.h
index 99e4bf7..773e645 100644
--- a/pb.h
+++ b/pb.h
@@ -2,57 +2,31 @@
 #define _PB_H_
 
 #include <stdint.h>
-#include <stddef.h> // size_t
+#include <stddef.h>
 #include <stdbool.h>
 
 #ifdef __GNUC__
-// This just reduces memory requirements, but is not required.
+/* This just reduces memory requirements, but is not required. */
 #define pb_packed __attribute__((packed))
 #else
 #define pb_packed
 #endif
 
-/* Lightweight input stream.
- * If buf is NULL, read but don't store bytes.
- * You have to provide a callback function for reading.
- * You can use state to store your own data (e.g. buffer pointer),
- * and rely on pb_read to verify that no-body reads past bytes_left.
- * However, substreams may change bytes_left so don't use that to
- * compute any pointers.
- */
-typedef struct _pb_istream_t pb_istream_t;
-struct _pb_istream_t
-{
-    bool (*callback)(pb_istream_t *stream, uint8_t *buf, size_t count);
-    void *state; // Free field for use by callback implementation
-    size_t bytes_left;
-};
-
-static inline bool pb_read(pb_istream_t *stream, uint8_t *buf, size_t count)
-{
-    if (stream->bytes_left < count)
-        return false;
-    
-    bool status = stream->callback(stream, buf, count);
-    stream->bytes_left -= count;
-    return status;
-}
-
 /* Lightweight output stream. */
 typedef struct _pb_ostream_t pb_ostream_t;
 struct _pb_ostream_t
 {
     bool (*callback)(pb_ostream_t *stream, const uint8_t *buf, size_t count);
-    void *state; // Free field for use by callback implementation
+    void *state; /* Free field for use by callback implementation */
     size_t bytes_written;
 };
 
-static inline bool pb_write(pb_ostream_t *stream, const uint8_t *buf, size_t count)
+/*static inline bool pb_write(pb_ostream_t *stream, const uint8_t *buf, size_t count)
 {
     bool status = stream->callback(stream, buf, count);
     stream->bytes_written += count;
     return status;
-}
+}*/
 
 /* List of possible field types
  * Least-significant 4 bits tell the scalar type
@@ -65,7 +39,11 @@ static inline bool pb_write(pb_ostream_t *stream, const uint8_t *buf, size_t cou
  */
 
 typedef enum {
-    // Standard integer types
+    /************************
+     * Field contents types *
+     ************************/
+    
+    /* Standard integer types */
     PB_LTYPE_UINT32 = 0x00,
     PB_LTYPE_INT32 = 0x00,
     PB_LTYPE_SINT32 = 0x01,
@@ -79,39 +57,40 @@ typedef enum {
     PB_LTYPE_BOOL = 0x06,
     PB_LTYPE_ENUM = 0x07,
     
-    // Standard float types
+    /* Standard float types */
     PB_LTYPE_FLOAT = 0x08,
     PB_LTYPE_DOUBLE = 0x09,
     
-    // Byte array with pre-allocated buffer.
-    // data_size is the length of the allocated PB_BYTES_ARRAY structure.
+    /* Byte array with pre-allocated buffer.
+     * data_size is the length of the allocated PB_BYTES_ARRAY structure. */
     PB_LTYPE_BYTES = 0x0A,
     
-    // String with pre-allocated buffer.
-    // data_size is the maximum length.
+    /* String with pre-allocated buffer.
+     * data_size is the maximum length. */
     PB_LTYPE_STRING = 0x0B,
     
-    // Submessage
-    // submsg_fields is pointer to field descriptions
+    /* Submessage
+     * submsg_fields is pointer to field descriptions */
     PB_LTYPE_SUBMESSAGE = 0x0C,
     
-    /////////////
-    // Modifier flags
+    /******************
+     * Modifier flags *
+     ******************/
     
-    // Just the basic, write data at data_offset
+    /* Just the basic, write data at data_offset */
     PB_HTYPE_REQUIRED = 0x00,
     
-    // Write true at size_offset
+    /* Write true at size_offset */
     PB_HTYPE_OPTIONAL = 0x10,
     
-    // Read to pre-allocated array
-    // Maximum number of entries is array_size,
-    // actual number is stored at size_offset
+    /* Read to pre-allocated array
+     * Maximum number of entries is array_size,
+     * actual number is stored at size_offset */
     PB_HTYPE_ARRAY = 0x20,
     
-    // Works for all required/optional/repeated fields.
-    // data_offset points to pb_callback_t structure.
-    // LTYPE is ignored.
+    /* Works for all required/optional/repeated fields.
+     * data_offset points to pb_callback_t structure.
+     * LTYPE is ignored. */
     PB_HTYPE_CALLBACK = 0x30
 } pb_packed pb_type_t;
 
@@ -129,21 +108,21 @@ typedef struct _pb_field_t pb_field_t;
 struct _pb_field_t {
     uint8_t tag;
     pb_type_t type;
-    uint8_t data_offset; // Offset of actual data or array start
-    uint8_t size_offset; // Offset of array size or has-boolean
-    uint8_t data_size; // Data size in bytes for a single item
-    uint8_t array_size; // Maximum number of entries in array
+    uint8_t data_offset; /* Offset of actual data or array start */
+    uint8_t size_offset; /* Offset of array size or has-boolean */
+    uint8_t data_size; /* Data size in bytes for a single item */
+    uint8_t array_size; /* Maximum number of entries in array */
     
-    // Field definitions for submessage
-    // OR default value for all other non-array, non-callback types
-    // If null, then field will zeroed.
+    /* Field definitions for submessage
+     * OR default value for all other non-array, non-callback types
+     * If null, then field will zeroed. */
     const void *ptr;
 } pb_packed;
 
 #define PB_LAST_FIELD {0,0,0,0}
 
-// This structure is used for 'bytes' arrays.
-// It has the number of bytes in the beginning, and after that an array.
+/* This structure is used for 'bytes' arrays.
+ * It has the number of bytes in the beginning, and after that an array. */
 #define PB_BYTES_ARRAY(buffersize) \
 struct { \
     size_t size; \
@@ -152,19 +131,23 @@ struct { \
 
 typedef PB_BYTES_ARRAY(1) pb_bytes_array_t;
 
-// This structure is used for giving the callback function.
-//
-// The decoding callback will be given a limited-length stream
-// If the wire type was string, the length is the length of the string.
-// If the wire type was a varint/fixed32/fixed64, the length is the length
-// of the actual value.
-// The function may be called multiple times (especially for repeated types,
-// but also otherwise if the message happens to contain the field multiple
-// times.)
-//
-// The encoding callback will receive the actual output stream.
-// It should write all the data in one call, including the field tag and
-// wire type. It can write multiple fields.
+/* This structure is used for giving the callback function.
+ * It is stored in the message structure and filled in by the method that
+ * calls pb_decode.
+ *
+ * The decoding callback will be given a limited-length stream
+ * If the wire type was string, the length is the length of the string.
+ * If the wire type was a varint/fixed32/fixed64, the length is the length
+ * of the actual value.
+ * The function may be called multiple times (especially for repeated types,
+ * but also otherwise if the message happens to contain the field multiple
+ * times.)
+ *
+ * The encoding callback will receive the actual output stream.
+ * It should write all the data in one call, including the field tag and
+ * wire type. It can write multiple fields.
+ */
+typedef struct _pb_istream_t pb_istream_t;
 typedef struct _pb_callback_t pb_callback_t;
 struct _pb_callback_t {
     union {
@@ -172,7 +155,7 @@ struct _pb_callback_t {
         bool (*encode)(pb_ostream_t *stream, const pb_field_t *field, void *arg);
     } funcs;
     
-    // Free arg for use by callback
+    /* Free arg for use by callback */
     void *arg;
 };