pipebuffer: More robust face null pointers.
It is really the caller responsibility not to call pipebuffer with null buffers, etc. But don't let the crash happen here, and still asserting early.
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bd4eec0561
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@ -146,6 +146,8 @@ pb_map(struct pb_buffer *buf,
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unsigned flags)
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{
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assert(buf);
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if(!buf)
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return NULL;
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return buf->vtbl->map(buf, flags);
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}
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@ -154,6 +156,8 @@ static INLINE void
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pb_unmap(struct pb_buffer *buf)
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{
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assert(buf);
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if(!buf)
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return;
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buf->vtbl->unmap(buf);
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}
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@ -163,6 +167,12 @@ pb_get_base_buffer( struct pb_buffer *buf,
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struct pb_buffer **base_buf,
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unsigned *offset )
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{
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assert(buf);
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if(!buf) {
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base_buf = NULL;
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offset = 0;
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return;
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}
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buf->vtbl->get_base_buffer(buf, base_buf, offset);
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}
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@ -171,7 +181,8 @@ static INLINE void
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pb_destroy(struct pb_buffer *buf)
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{
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assert(buf);
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assert(buf->vtbl);
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if(!buf)
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return;
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buf->vtbl->destroy(buf);
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}
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