Fix some TODO concerning error handling

src/gmio_amf/amf_io.c

@@ -670,14 +670,12 @@ static size_t gmio_amf_ostringstream_write_zlib(
     } while (z_stream->avail_out == 0);
     /* Check all input was used */
     if (z_stream->avail_in != 0) {
-        /* TODO: set more precise error */
+        context->error = GMIO_ERROR_ZLIB_DEFLATE_NOT_ALL_INPUT_USED;
-        context->error = GMIO_ERROR_UNKNOWN;
         return total_written_len;
     }
     /* Check stream is complete */
     if (context->z_flush == Z_FINISH && z_retcode != Z_STREAM_END) {
-        /* TODO: set more precise error */
+        context->error = GMIO_ERROR_ZLIB_DEFLATE_STREAM_INCOMPLETE;
-        context->error = GMIO_ERROR_UNKNOWN;
         return total_written_len;
     }
     context->z_compressed_size += total_written_len;
@@ -867,7 +865,8 @@ int gmio_amf_write(
 
     /* Check validity of input parameters */
     context.error = GMIO_ERROR_OK;
-    /* TODO: check stream function pointers */
+    if (!gmio_check_ostream(&context.error, stream))
+        goto label_end;
     if (!gmio_check_memblock(&context.error, memblock))
         goto label_end;
     if (!gmio_amf_check_document(&context.error, doc))

src/gmio_core/error.h

@@ -64,9 +64,15 @@ enum gmio_error
     /*! Argument size for the memory block is too small */
     GMIO_ERROR_INVALID_MEMBLOCK_SIZE,
 
+    /*! Provided gmio_stream is \c NULL */
+    GMIO_ERROR_NULL_STREAM,
+
     /*! An error occurred with gmio_stream */
     GMIO_ERROR_STREAM,
 
+    /*! Some required gmio_stream function pointer is NULL */
+    GMIO_ERROR_STREAM_FUNC_REQUIRED,
+
     /*! Task was stopped by user, that is to say
      *  gmio_task_iface::func_is_stop_requested() returned true */
     GMIO_ERROR_TASK_STOPPED,
@@ -105,6 +111,12 @@ enum gmio_error
      *  gmio_zlib_compress_options::memory_usage */
     GMIO_ERROR_ZLIB_INVALID_COMPRESS_MEMORY_USAGE,
 
+    /*! All input to be deflated(compressed) was not processed */
+    GMIO_ERROR_ZLIB_DEFLATE_NOT_ALL_INPUT_USED,
+
+    /*! Deflate failure to flush pending output */
+    GMIO_ERROR_ZLIB_DEFLATE_STREAM_INCOMPLETE,
+
     /* ZIP */
     /*! Zip64 format requires the compiler to provide a 64b integer type */
     GMIO_ERROR_ZIP_INT64_TYPE_REQUIRED,

src/gmio_core/global.h

@@ -185,7 +185,7 @@ enum gmio_bool_value
 #    define GMIO_RESTRICT __restrict__  /* Compatible with C90 */
 #  elif defined(_MSC_VER)
 #    define GMIO_RESTRICT __restrict
-#  elif defined(GMIO_HAVE_C99_RESTRICT) /* TODO: add cmake detectection */
+#  elif defined(GMIO_HAVE_C99_RESTRICT) /* TODO: add cmake detection */
 #    define GMIO_RESTRICT restrict
 #  else
 /*! Expands to the C compiler specific restrict keyword (if any) */

src/gmio_core/internal/error_check.c

@@ -32,6 +32,7 @@
 #include "locale_utils.h"
 #include "../error.h"
 #include "../memblock.h"
+#include "../stream.h"
 
 bool gmio_check_memblock(int *error, const struct gmio_memblock* mblock)
 {
@@ -56,3 +57,43 @@ bool gmio_check_lc_numeric(int *error)
         *error = GMIO_ERROR_BAD_LC_NUMERIC;
     return gmio_no_error(*error);
 }
+
+bool gmio_check_istream(int *error, const struct gmio_stream *stream)
+{
+    if (stream == NULL)
+        *error = GMIO_ERROR_NULL_STREAM;
+    else if (stream->func_at_end == NULL)
+        *error = GMIO_ERROR_STREAM_FUNC_REQUIRED;
+    else if (stream->func_error == NULL)
+        *error = GMIO_ERROR_STREAM_FUNC_REQUIRED;
+    else if (stream->func_read == NULL)
+        *error = GMIO_ERROR_STREAM_FUNC_REQUIRED;
+    else if (stream->func_size == NULL)
+        *error = GMIO_ERROR_STREAM_FUNC_REQUIRED;
+    else if (stream->func_get_pos == NULL)
+        *error = GMIO_ERROR_STREAM_FUNC_REQUIRED;
+    else if (stream->func_set_pos == NULL)
+        *error = GMIO_ERROR_STREAM_FUNC_REQUIRED;
+    return gmio_no_error(*error);
+}
+
+bool gmio_check_ostream(int *error, const struct gmio_stream *stream)
+{
+    if (stream == NULL)
+        *error = GMIO_ERROR_NULL_STREAM;
+    else if (stream->func_error == NULL)
+        *error = GMIO_ERROR_STREAM_FUNC_REQUIRED;
+    else if (stream->func_write == NULL)
+        *error = GMIO_ERROR_STREAM_FUNC_REQUIRED;
+    else if (stream->func_get_pos == NULL)
+        *error = GMIO_ERROR_STREAM_FUNC_REQUIRED;
+    else if (stream->func_set_pos == NULL)
+        *error = GMIO_ERROR_STREAM_FUNC_REQUIRED;
+    return gmio_no_error(*error);
+}
+
+bool gmio_check_stream(int *error, const struct gmio_stream *stream)
+{
+    return gmio_check_istream(error, stream)
+           && gmio_check_ostream(error, stream);
+}

src/gmio_core/internal/error_check.h

@@ -32,12 +32,17 @@
 #include "../global.h"
 #include <stddef.h>
 struct gmio_memblock;
+struct gmio_stream;
 
 bool gmio_check_memblock(
         int* error, const struct gmio_memblock* mblock);
 bool gmio_check_memblock_size(
         int* error, const struct gmio_memblock* mblock, size_t minsize);
 
-/*! Checks gmio_lc_numeric_is_C(), if false sets \p *error to
+/* Checks gmio_lc_numeric_is_C()
- *  \c GMIO_ERROR_BAD_LC_NUMERIC*/
+ * If false sets *error to GMIO_ERROR_BAD_LC_NUMERIC */
 bool gmio_check_lc_numeric(int* error);
+
+bool gmio_check_istream(int* error, const struct gmio_stream* stream);
+bool gmio_check_ostream(int* error, const struct gmio_stream* stream);
+bool gmio_check_stream(int* error, const struct gmio_stream* stream);

tests/test_stl_io.c

@@ -270,7 +270,7 @@ static const char* test_stla_write()
 {
     const char* model_filepath = filepath_stlb_grabcad_arm11;
     const char* model_filepath_out = "temp/solid.stla";
-    struct gmio_stl_data data = {0}; /* TODO: fix memory leak on error */
+    struct gmio_stl_data data = {0};
     char header_str[GMIO_STLB_HEADER_SIZE + 1] = {0};
 
     /* Read input model file */