Hi Silvio, thanks for answering,
> Could you show what error and how the buffer was assigned?
The error is that the downloaded binary file from the MHD server with the
MHD_RESPMEM_PERSISTENT option is corrupt:
- Same size as the original
- The initial bytes are ok
- but from a certain point file contents are set to '0'. The
free(buffer) seems to impact the content downloaded in the http response, I
do not how because free() is after the MHD_destroy_response()
- Buffer is correctly downloaded when using the MHD_RESPMEM_MUST_COPY
option but I wanted to minimize the memory impacts
The buffer is allocated by the MHD server with malloc, simplifying:
unsigned char* buffer = (unsigned char*)malloc(dataSize);
memcpy(buffer, data, dataSize);
Another thing I observe is that if* I remove the free(buffer)*, the file is
correctly downloaded. However this solution is not valid because in this
case I have a memory leak:
* response = MHD_create_response_from_*
*buffer(
size,(void*)buffer,MHD_RESPMEM_PERSISTENT); ret =
MHD_queue_response (connection, 200, response);
MHD_destroy_response (response); //free(buffer); // Memory
Leak!*
Thanks
Miguel
