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POFree memory for elements of GArray
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copied!<p>I create <code>drvm *drv</code> structure in my function. This structure itself contains fields which contains <code>malloc()-ed</code> fields (<code>uint32_t *buffer</code>). The code which do that is similar to that:</p> <pre><code>... size_t elm_size = sizeof(model*); uint32_t length = *(uint32_t*)len; GArray *models = g_array_sized_new(FALSE, FALSE, elm_size, length); model *mod; for (int i = 0; i < length; ++i) { mod = create_model(...); g_array_append_val(models, mod); } </code></pre> <p>This piece of code doesn't contain errors and is highly tested. At the start of program I register function <code>free_all()</code> (by <code>atexit()</code>) which should clean all resources (especially memory) when <code>exit()</code> is performed.</p> <p>Inside this function I'm trying freeing memory of <code>elements of GArray*</code> (<code>model *</code> structure) <strong>and</strong> memory for <code>GArray *</code> itself:</p> <pre><code>GArray *models; g_array_set_clear_func(models, clean_model); if(!g_array_free(models, FALSE)) { //OK } </code></pre> <p>The problem is that when <code>clean_model(void *data)</code> is called inside <code>glib</code> library I suggest it contains pointer to one <code>model *</code> element. But the address is wrong, it doesn't seem point to any correct value. Neither <code>GArray*</code>, nor <code>model*</code>.</p> <p>Furthermore <code>GArray *models</code> in <code>free_all()</code> function is correct (the same as when I created it) and when I iterate through all <code>GArray *</code> elements in <code>free_all()</code> by </p> <pre><code>for (int i = 0; i < len; ++i) { mod = g_array_index(models, model*, i); // Here I get correct pointer to model* clean_model(mod); } </code></pre> <p>I get expected values.</p> <p><strong>Question:</strong> What's wrong? How should I free memory of elements of <code>GArray *</code> if these elements contain <code>malloc()-ed</code> memory?</p> <p><strong>Part of header:</strong></p> <pre><code>struct _info { uint32_t *buffer; uint32_t len; }; typedef struct _info info; struct _prod { uint32_t *buffer; uint32_t len; }; typedef struct _prod prod; struct _model { uint32_t name; prod product; info inform; }; typedef struct _model model; struct _drvm { GArray *models; GArray *strings; }; typedef struct _drvm drvm; </code></pre>

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