bowen liu / Mbed OS mbed-os-example-blinky

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DuerOS-Light-SDK-v1.1.0/duer-os-light/src/iot-baidu-ota/baidu_ota_unpack/ota/inc/decompress.h@47:9e361da97763, 2017-07-18 (annotated)

Committer:
TMBOY
Date:
Tue Jul 18 16:54:45 2017 +0800
Revision:
47:9e361da97763
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Who changed what in which revision?

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TMBOY 47:9e361da97763 1
TMBOY 47:9e361da97763 2 #ifndef _MBED_PACK_DECRYPTION_
TMBOY 47:9e361da97763 3 #define _MBED_PACK_DECRYPTION_
TMBOY 47:9e361da97763 4
TMBOY 47:9e361da97763 5 #include <stdint.h>
TMBOY 47:9e361da97763 6 #include "pack_include.h"
TMBOY 47:9e361da97763 7 #include "zliblite/zlib.h"
TMBOY 47:9e361da97763 8 #include "IOtaUpdater.h"
TMBOY 47:9e361da97763 9
TMBOY 47:9e361da97763 10 typedef struct _decompress_context_ {
TMBOY 47:9e361da97763 11 // internal_footprint
TMBOY 47:9e361da97763 12 uint32_t stream_recieved_sz; // current size of recieved stream
TMBOY 47:9e361da97763 13 uint32_t stream_processed_sz; // current size of processed stream
TMBOY 47:9e361da97763 14
TMBOY 47:9e361da97763 15 //cache meta data
TMBOY 47:9e361da97763 16 unsigned int meta_size;
TMBOY 47:9e361da97763 17 unsigned int meta_stored_size;
TMBOY 47:9e361da97763 18 char *meta_data;
TMBOY 47:9e361da97763 19
TMBOY 47:9e361da97763 20 //module data write offset
TMBOY 47:9e361da97763 21 unsigned int write_offset;
TMBOY 47:9e361da97763 22 // zlib stream object
TMBOY 47:9e361da97763 23 z_streamp strmp;
TMBOY 47:9e361da97763 24
TMBOY 47:9e361da97763 25 } decompress_context_t;
TMBOY 47:9e361da97763 26
TMBOY 47:9e361da97763 27 /**
TMBOY 47:9e361da97763 28 *
TMBOY 47:9e361da97763 29 * package decompress
TMBOY 47:9e361da97763 30 *
TMBOY 47:9e361da97763 31 * \return decompress context
TMBOY 47:9e361da97763 32 */
TMBOY 47:9e361da97763 33 void* mbed_zlibstream_decompress_init();
TMBOY 47:9e361da97763 34
TMBOY 47:9e361da97763 35
TMBOY 47:9e361da97763 36 /**
TMBOY 47:9e361da97763 37 *
TMBOY 47:9e361da97763 38 * package decompress process
TMBOY 47:9e361da97763 39 *
TMBOY 47:9e361da97763 40 * \param ctx decompress context
TMBOY 47:9e361da97763 41 * \param buffer data to decompress
TMBOY 47:9e361da97763 42 * \param bufferSZ buffer size
TMBOY 47:9e361da97763 43 * \param lFileHandle fs file index
TMBOY 47:9e361da97763 44 *
TMBOY 47:9e361da97763 45 * \return process state
TMBOY 47:9e361da97763 46 */
TMBOY 47:9e361da97763 47 int mbed_zlibstream_decompress_process(void *verify_cxt, decompress_context_t* ctx, unsigned char* buffer, uint32_t bufferSZ,
TMBOY 47:9e361da97763 48 struct IOtaUpdater *updater, void *update_cxt);
TMBOY 47:9e361da97763 49
TMBOY 47:9e361da97763 50
TMBOY 47:9e361da97763 51 /**
TMBOY 47:9e361da97763 52 *
TMBOY 47:9e361da97763 53 * package decompress uninit
TMBOY 47:9e361da97763 54 *
TMBOY 47:9e361da97763 55 * \param ctx decompress context
TMBOY 47:9e361da97763 56 *
TMBOY 47:9e361da97763 57 */
TMBOY 47:9e361da97763 58 void mbed_zlibstream_decompress_uninit(decompress_context_t* ctx);
TMBOY 47:9e361da97763 59
TMBOY 47:9e361da97763 60
TMBOY 47:9e361da97763 61
TMBOY 47:9e361da97763 62
TMBOY 47:9e361da97763 63 ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
TMBOY 47:9e361da97763 64
TMBOY 47:9e361da97763 65
TMBOY 47:9e361da97763 66
TMBOY 47:9e361da97763 67
TMBOY 47:9e361da97763 68
TMBOY 47:9e361da97763 69 // for test
TMBOY 47:9e361da97763 70 //void mbed_decompress_test();
TMBOY 47:9e361da97763 71
TMBOY 47:9e361da97763 72
TMBOY 47:9e361da97763 73 #endif
TMBOY 47:9e361da97763 74