GCC Code Coverage Report

Directory:	Svc/FileDownlink/
File:	FileDownlink.hpp
Date:	2026-09-03 21:17:43

	Exec	Total	Coverage
Lines:	33	33	100.0%
Functions:	16	16	100.0%
Branches:	10	11	90.9%

  
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      // ======================================================================
    
      // \title  FileDownlink.hpp
    
      // \author bocchino, mstarch
    
      // \brief  hpp file for FileDownlink component implementation class
    
      //
    
      // \copyright
    
      // Copyright 2009-2015, by the California Institute of Technology.
    
      // ALL RIGHTS RESERVED.  United States Government Sponsorship
    
      // acknowledged.
    
      // ======================================================================
    
      #ifndef Svc_FileDownlink_HPP
    
      #define Svc_FileDownlink_HPP
    
      #include <Fw/FilePacket/FilePacket.hpp>
    
      #include <Fw/Types/FileNameString.hpp>
    
      #include <Os/File.hpp>
    
      #include <Os/Mutex.hpp>
    
      #include <Os/Queue.hpp>
    
      #include <Os/SandboxedFile.hpp>
    
      #include <Svc/FileDownlink/FileDownlinkComponentAc.hpp>
    
      #include <config/FileDownlinkCfg.hpp>
    
      namespace Svc {
    
      class FileDownlink final : public FileDownlinkComponentBase {
    
          friend class FileDownlinkTester;
    
        private:
    
          // ----------------------------------------------------------------------
    
          // Types
    
          // ----------------------------------------------------------------------
    
          //! The Mode class
    
          class Mode {
    
              friend class FileDownlinkTester;
    
            public:
    
              //! The Mode type
    
              typedef enum { IDLE, DOWNLINK, CANCEL, WAIT, COOLDOWN } Type;
    
            public:
    
              //! Constructor
    
      9
              Mode() : m_value(IDLE) {}
    
            public:
    
              //! Set the Mode value
    
      36
              void set(const Type value) {
    
      36
                  this->m_mutex.lock();
    
      36
                  this->m_value = value;
    
      36
                  this->m_mutex.unLock();
    
      36
              }
    
              //! Get the Mode value
    
      216
              Type get() const {
    
      216
                  this->m_mutex.lock();
    
        1/2✗ Branch 1 not taken.
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      216
                  const Type value = this->m_value;
    
      216
                  this->m_mutex.unLock();
    
      216
                  return value;
    
              }
    
            private:
    
              //! The Mode value
    
              Type m_value;
    
              //! The Mode mutex
    
              mutable Os::Mutex m_mutex;
    
          };
    
          //! Class representing an outgoing file
    
          class File {
    
              friend class FileDownlinkTester;
    
            public:
    
              //! Constructor
    
        3/3✓ Branch 7 taken 9 times.
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      9
              File() : m_size(0) {}
    
            private:
    
              //! The source file name
    
              Fw::LogStringArg m_sourceName;
    
              //! The destination file name
    
              Fw::LogStringArg m_destName;
    
              //! The underlying OS file (sandboxed to restrict read locations)
    
              Os::SandboxedFile m_osFile;
    
              //! The file size
    
              U32 m_size;
    
              //! The checksum for the file
    
              CFDP::Checksum m_checksum;
    
            public:
    
              //! Open the OS file for reading and initialize the checksum
    
              Os::File::Status open(const Fw::FileNameString& sourceFileName,  //!< The source file name
    
                                    const Fw::FileNameString& destFileName     //!< The destination file name
    
              );
    
              //! Read bytes from the OS file and update the checksum
    
              Os::File::Status read(U8* const data, const U32 byteOffset, const U32 size);
    
              //! Get the checksum
    
      4
              void getChecksum(CFDP::Checksum& checksum) { checksum = this->m_checksum; }
    
              //! Get the source file name
    
      19
              Fw::LogStringArg& getSourceName(void) { return this->m_sourceName; }
    
              //! Get the destination file name
    
      17
              Fw::LogStringArg& getDestName(void) { return this->m_destName; }
    
              //! Configure the allowed read directory for sandboxed file opens
    
      9
              void configureSandbox(const char* directory) { this->m_osFile.configure(directory); }
    
              //! Get the underlying OS file
    
      6
              Os::SandboxedFile& getOsFile(void) { return this->m_osFile; }
    
              //! Get the file size
    
      11
              U32 getSize(void) { return this->m_size; }
    
          };
    
          //! Class to record files sent
    
          class FilesSent {
    
              friend class FileDownlinkTester;
    
            public:
    
              //! Construct a FilesSent object
    
      9
              FilesSent(FileDownlink* const fileDownlink) : m_sent_file_count(0), m_fileDownlink(fileDownlink) {}
    
            public:
    
              //! Record a file sent
    
      4
              void fileSent() {
    
      4
                  ++this->m_sent_file_count;
    
        2/2✓ Branch 8 taken 4 times.
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      4
                  this->m_fileDownlink->tlmWrite_FilesSent(m_sent_file_count);
    
      4
              }
    
            private:
    
              //! The total number of file sent
    
              U32 m_sent_file_count;
    
              //! The enclosing FileDownlink object
    
              FileDownlink* const m_fileDownlink;
    
          };
    
          //! Class to record packets sent
    
          class PacketsSent {
    
              friend class FileDownlinkTester;
    
            public:
    
              //! Construct a PacketsSent object
    
      9
              PacketsSent(FileDownlink* const fileDownlink) : m_sent_packet_count(0), m_fileDownlink(fileDownlink) {}
    
            public:
    
              //! Record a packet sent
    
      14
              void packetSent() {
    
      14
                  ++this->m_sent_packet_count;
    
        2/2✓ Branch 8 taken 14 times.
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      14
                  this->m_fileDownlink->tlmWrite_PacketsSent(m_sent_packet_count);
    
      14
              }
    
            private:
    
              //! The total number of downlinked packets
    
              U32 m_sent_packet_count;
    
              //! The enclosing FileDownlink object
    
              FileDownlink* const m_fileDownlink;
    
          };
    
          //! Class to record warnings
    
          class Warnings {
    
              friend class FileDownlinkTester;
    
            public:
    
              //! Construct a Warnings object
    
      9
              Warnings(FileDownlink* const fileDownlink) : m_warning_count(0), m_fileDownlink(fileDownlink) {}
    
            public:
    
              //! Issue a File Open Error warning
    
              void fileOpenError();
    
              //! Issue a File Read Error warning
    
              void fileRead(const Os::File::Status status);
    
              //! Issue a Zero-Size File warning
    
              void zeroSize();
    
              //! Issue a Source Out Of Sandbox warning
    
              void sourceOutOfSandbox();
    
            private:
    
              //! Record a warning
    
      2
              void warning() {
    
      2
                  ++this->m_warning_count;
    
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      2
                  this->m_fileDownlink->tlmWrite_Warnings(m_warning_count);
    
      2
              }
    
            private:
    
              //! The total number of warnings
    
              U32 m_warning_count;
    
              //! The enclosing FileDownlink object
    
              FileDownlink* const m_fileDownlink;
    
          };
    
          //! Sources of send file requests
    
          enum CallerSource { COMMAND, PORT };
    
          //! Used to track a single file downlink request
    
          struct FileEntry {
    
              Fw::FileNameString srcFilename;   // Name of requested file
    
              Fw::FileNameString destFilename;  // Name of requested file
    
              U32 offset;
    
              U32 length;
    
              CallerSource source;  // Source of the downlink request
    
              FwOpcodeType opCode;  // Op code of command, only set for CMD sources.
    
              U32 cmdSeq;           // CmdSeq number, only set for CMD sources.
    
              U32 context;          // Context id of request, only set for PORT sources.
    
          };
    
          //! Enumeration for packet types
    
          //! Each type has a buffer to store it.
    
          enum PacketType { FILE_PACKET, CANCEL_PACKET, COUNT_PACKET_TYPE };
    
        public:
    
          // ----------------------------------------------------------------------
    
          // Construction, initialization, and destruction
    
          // ----------------------------------------------------------------------
    
          //! Construct object FileDownlink
    
          //!
    
          FileDownlink(const char* const compName  //!< The component name
    
          );
    
          //! Configure FileDownlink component
    
          //!
    
          void configure(U32 cooldown,       //!< Cooldown (in ms) between finishing a downlink and starting the next file.
    
                         U32 cycleTime,      //!< Rate at which we are running
    
                         U32 fileQueueDepth  //!< Max number of items in file downlink queue
    
          );
    
          //! Restrict SendFile / SendPartial reads to paths under the configured directory.
    
          //! Fail-open: until called, the sandbox defaults to `/` (any readable path is allowed).
    
          void configure(const char* directory);
    
          //! Cleans up file queue before dispatching to underlying component
    
          void deinit();
    
          //! Start FileDownlink component
    
          //! The component must be configured with configure() before starting.
    
          //!
    
          void preamble();
    
          //! Destroy object FileDownlink
    
          //!
    
          ~FileDownlink();
    
        private:
    
          // ----------------------------------------------------------------------
    
          // Handler implementations for user-defined typed input ports
    
          // ----------------------------------------------------------------------
    
          //! Handler implementation for Run
    
          //!
    
          void Run_handler(const FwIndexType portNum,  //!< The port number
    
                           U32 context                 //!< The call order
    
          );
    
          //! Handler implementation for SendFile
    
          //!
    
          Svc::SendFileResponse SendFile_handler(
    
              const FwIndexType portNum,            /*!< The port number*/
    
              const Fw::StringBase& sourceFilename, /*!< Path of file to downlink*/
    
              const Fw::StringBase& destFilename,   /*!< Path to store downlinked file at*/
    
              U32 offset, /*!< Amount of data in bytes to downlink from file. 0 to read until end of file*/
    
              U32 length  /*!< Amount of data in bytes to downlink from file. 0 to read until end of file*/
    
          );
    
          //! Handler implementation for bufferReturn
    
          //!
    
          void bufferReturn_handler(const FwIndexType portNum,  //!< The port number
    
                                    Fw::Buffer& fwBuffer);
    
          //! Handler implementation for pingIn
    
          //!
    
          void pingIn_handler(const FwIndexType portNum, /*!< The port number*/
    
                              U32 key                    /*!< Value to return to pinger*/
    
          );
    
        private:
    
          // ----------------------------------------------------------------------
    
          // Command handler implementations
    
          // ----------------------------------------------------------------------
    
          //! Implementation for FileDownlink_SendFile command handler
    
          //!
    
          void SendFile_cmdHandler(const FwOpcodeType opCode,               //!< The opcode
    
                                   const U32 cmdSeq,                        //!< The command sequence number
    
                                   const Fw::CmdStringArg& sourceFilename,  //!< The name of the on-board file to send
    
                                   const Fw::CmdStringArg& destFilename  //!< The name of the destination file on the ground
    
          );
    
          //! Implementation for FileDownlink_Cancel command handler
    
          //!
    
          void Cancel_cmdHandler(const FwOpcodeType opCode,  //!< The opcode
    
                                 const U32 cmdSeq            //!< The command sequence number
    
          );
    
          //! Implementation for FILE_DWN_SEND_PARTIAL command handler
    
          //!
    
          void SendPartial_cmdHandler(
    
              FwOpcodeType opCode,                     //!< The opcode
    
              U32 cmdSeq,                              //!< The command sequence number
    
              const Fw::CmdStringArg& sourceFilename,  //!< The name of the on-board file to send
    
              const Fw::CmdStringArg& destFilename,    //!< The name of the destination file on the ground
    
              U32 startOffset,                         //!< Starting offset of the source file
    
              U32 length  //!< Number of bytes to send from starting offset. Length of 0 implies until the end of the file
    
          );
    
        private:
    
          // ----------------------------------------------------------------------
    
          // Private helper methods
    
          // ----------------------------------------------------------------------
    
          void sendFile(
    
              const Fw::FileNameString& sourceFilename,  //!< The name of the on-board file to send
    
              const Fw::FileNameString& destFilename,    //!< The name of the destination file on the ground
    
              U32 startOffset,                           //!< Starting offset of the source file
    
              U32 length  //!< Number of bytes to send from starting offset. Length of 0 implies until the end of the file
    
          );
    
          // Individual packet transfer functions
    
          Os::File::Status sendDataPacket(U32& byteOffset);
    
          void sendCancelPacket();
    
          void sendEndPacket();
    
          void sendStartPacket();
    
          void sendFilePacket(const Fw::FilePacket& filePacket);
    
          // State-helper functions
    
          void exitFileTransfer();
    
          void enterCooldown();
    
          // Function to acquire a buffer internally
    
          void getBuffer(Fw::Buffer& buffer, PacketType type);
    
          // Downlink the "next" packet
    
          void downlinkPacket();
    
          // Finish the file transfer
    
          void finishHelper(bool is_cancel);
    
          // Convert internal status enum to a command response
    
          Fw::CmdResponse statusToCmdResp(SendFileStatus status);
    
          // Send response after completing file downlink
    
          void sendResponse(SendFileStatus resp);
    
        private:
    
          // ----------------------------------------------------------------------
    
          // Member variables
    
          // ----------------------------------------------------------------------
    
          //! Whether the configuration function has been called.
    
          bool m_configured;
    
          //! File downlink queue
    
          Os::Queue m_fileQueue;
    
          //! Buffer's memory backing
    
          U8 m_memoryStore[COUNT_PACKET_TYPE][FILEDOWNLINK_INTERNAL_BUFFER_SIZE];
    
          //! The mode
    
          Mode m_mode;
    
          //! The file
    
          File m_file;
    
          //! Files sent
    
          FilesSent m_filesSent;
    
          //! Packets sent
    
          PacketsSent m_packetsSent;
    
          //! Warnings
    
          Warnings m_warnings;
    
          //! The current sequence index
    
          U32 m_sequenceIndex;
    
          //! Timeout threshold (milliseconds) while in WAIT state
    
          U32 m_timeout;
    
          //! Cooldown (in ms) between finishing a downlink and starting the next file.
    
          U32 m_cooldown;
    
          //! current time residing in WAIT state
    
          U32 m_curTimer;
    
          //! rate (milliseconds) at which we are running
    
          U32 m_cycleTime;
    
          ////! Buffer for sending file data
    
          Fw::Buffer m_buffer;
    
          //! Buffer size for file data
    
          U32 m_bufferSize;
    
          //! Current byte offset in file
    
          U32 m_byteOffset;
    
          //! Amount of bytes left to read
    
          U32 m_endOffset;
    
          //! Set to true when all data packets have been sent
    
          Fw::FilePacket::Type m_lastCompletedType;
    
          //! Last buffer used
    
          U32 m_lastBufferId;
    
          //! Current in progress file entry from queue
    
          struct FileEntry m_curEntry;
    
          //! Incrementing context id used to unique identify a specific downlink request
    
          U32 m_cntxId;
    
      };
    
      }  // end namespace Svc
    
      #endif

Line	Branch	Exec	Source
1			// ======================================================================
2			// \title FileDownlink.hpp
3			// \author bocchino, mstarch
4			// \brief hpp file for FileDownlink component implementation class
5			//
6			// \copyright
7			// Copyright 2009-2015, by the California Institute of Technology.
8			// ALL RIGHTS RESERVED. United States Government Sponsorship
9			// acknowledged.
10			// ======================================================================
11
12			#ifndef Svc_FileDownlink_HPP
13			#define Svc_FileDownlink_HPP
14
15			#include <Fw/FilePacket/FilePacket.hpp>
16			#include <Fw/Types/FileNameString.hpp>
17			#include <Os/File.hpp>
18			#include <Os/Mutex.hpp>
19			#include <Os/Queue.hpp>
20			#include <Os/SandboxedFile.hpp>
21			#include <Svc/FileDownlink/FileDownlinkComponentAc.hpp>
22			#include <config/FileDownlinkCfg.hpp>
23
24			namespace Svc {
25
26			class FileDownlink final : public FileDownlinkComponentBase {
27			friend class FileDownlinkTester;
28
29			private:
30			// ----------------------------------------------------------------------
31			// Types
32			// ----------------------------------------------------------------------
33
34			//! The Mode class
35			class Mode {
36			friend class FileDownlinkTester;
37
38			public:
39			//! The Mode type
40			typedef enum { IDLE, DOWNLINK, CANCEL, WAIT, COOLDOWN } Type;
41
42			public:
43			//! Constructor
44		9	Mode() : m_value(IDLE) {}
45
46			public:
47			//! Set the Mode value
48		36	void set(const Type value) {
49		36	this->m_mutex.lock();
50		36	this->m_value = value;
51		36	this->m_mutex.unLock();
52		36	}
53
54			//! Get the Mode value
55		216	Type get() const {
56		216	this->m_mutex.lock();
57	1/2 ✗ Branch 1 not taken. ✓ Branch 2 taken 216 times.	216	const Type value = this->m_value;
58		216	this->m_mutex.unLock();
59		216	return value;
60			}
61
62			private:
63			//! The Mode value
64			Type m_value;
65
66			//! The Mode mutex
67			mutable Os::Mutex m_mutex;
68			};
69
70			//! Class representing an outgoing file
71			class File {
72			friend class FileDownlinkTester;
73
74			public:
75			//! Constructor
76	3/3 ✓ Branch 7 taken 9 times. ✓ Branch 13 taken 9 times. ✓ Branch 21 taken 9 times.	9	File() : m_size(0) {}
77
78			private:
79			//! The source file name
80			Fw::LogStringArg m_sourceName;
81
82			//! The destination file name
83			Fw::LogStringArg m_destName;
84
85			//! The underlying OS file (sandboxed to restrict read locations)
86			Os::SandboxedFile m_osFile;
87
88			//! The file size
89			U32 m_size;
90
91			//! The checksum for the file
92			CFDP::Checksum m_checksum;
93
94			public:
95			//! Open the OS file for reading and initialize the checksum
96			Os::File::Status open(const Fw::FileNameString& sourceFileName, //!< The source file name
97			const Fw::FileNameString& destFileName //!< The destination file name
98			);
99
100			//! Read bytes from the OS file and update the checksum
101			Os::File::Status read(U8* const data, const U32 byteOffset, const U32 size);
102
103			//! Get the checksum
104		4	void getChecksum(CFDP::Checksum& checksum) { checksum = this->m_checksum; }
105
106			//! Get the source file name
107		19	Fw::LogStringArg& getSourceName(void) { return this->m_sourceName; }
108
109			//! Get the destination file name
110		17	Fw::LogStringArg& getDestName(void) { return this->m_destName; }
111
112			//! Configure the allowed read directory for sandboxed file opens
113		9	void configureSandbox(const char* directory) { this->m_osFile.configure(directory); }
114
115			//! Get the underlying OS file
116		6	Os::SandboxedFile& getOsFile(void) { return this->m_osFile; }
117
118			//! Get the file size
119		11	U32 getSize(void) { return this->m_size; }
120			};
121
122			//! Class to record files sent
123			class FilesSent {
124			friend class FileDownlinkTester;
125
126			public:
127			//! Construct a FilesSent object
128		9	FilesSent(FileDownlink* const fileDownlink) : m_sent_file_count(0), m_fileDownlink(fileDownlink) {}
129
130			public:
131			//! Record a file sent
132		4	void fileSent() {
133		4	++this->m_sent_file_count;
134	2/2 ✓ Branch 8 taken 4 times. ✓ Branch 12 taken 4 times.	4	this->m_fileDownlink->tlmWrite_FilesSent(m_sent_file_count);
135		4	}
136
137			private:
138			//! The total number of file sent
139			U32 m_sent_file_count;
140
141			//! The enclosing FileDownlink object
142			FileDownlink* const m_fileDownlink;
143			};
144
145			//! Class to record packets sent
146			class PacketsSent {
147			friend class FileDownlinkTester;
148
149			public:
150			//! Construct a PacketsSent object
151		9	PacketsSent(FileDownlink* const fileDownlink) : m_sent_packet_count(0), m_fileDownlink(fileDownlink) {}
152
153			public:
154			//! Record a packet sent
155		14	void packetSent() {
156		14	++this->m_sent_packet_count;
157	2/2 ✓ Branch 8 taken 14 times. ✓ Branch 12 taken 14 times.	14	this->m_fileDownlink->tlmWrite_PacketsSent(m_sent_packet_count);
158		14	}
159
160			private:
161			//! The total number of downlinked packets
162			U32 m_sent_packet_count;
163
164			//! The enclosing FileDownlink object
165			FileDownlink* const m_fileDownlink;
166			};
167
168			//! Class to record warnings
169			class Warnings {
170			friend class FileDownlinkTester;
171
172			public:
173			//! Construct a Warnings object
174		9	Warnings(FileDownlink* const fileDownlink) : m_warning_count(0), m_fileDownlink(fileDownlink) {}
175
176			public:
177			//! Issue a File Open Error warning
178			void fileOpenError();
179
180			//! Issue a File Read Error warning
181			void fileRead(const Os::File::Status status);
182
183			//! Issue a Zero-Size File warning
184			void zeroSize();
185
186			//! Issue a Source Out Of Sandbox warning
187			void sourceOutOfSandbox();
188
189			private:
190			//! Record a warning
191		2	void warning() {
192		2	++this->m_warning_count;
193	2/2 ✓ Branch 8 taken 2 times. ✓ Branch 12 taken 2 times.	2	this->m_fileDownlink->tlmWrite_Warnings(m_warning_count);
194		2	}
195
196			private:
197			//! The total number of warnings
198			U32 m_warning_count;
199
200			//! The enclosing FileDownlink object
201			FileDownlink* const m_fileDownlink;
202			};
203
204			//! Sources of send file requests
205			enum CallerSource { COMMAND, PORT };
206
207			//! Used to track a single file downlink request
208			struct FileEntry {
209			Fw::FileNameString srcFilename; // Name of requested file
210			Fw::FileNameString destFilename; // Name of requested file
211			U32 offset;
212			U32 length;
213			CallerSource source; // Source of the downlink request
214			FwOpcodeType opCode; // Op code of command, only set for CMD sources.
215			U32 cmdSeq; // CmdSeq number, only set for CMD sources.
216			U32 context; // Context id of request, only set for PORT sources.
217			};
218
219			//! Enumeration for packet types
220			//! Each type has a buffer to store it.
221			enum PacketType { FILE_PACKET, CANCEL_PACKET, COUNT_PACKET_TYPE };
222
223			public:
224			// ----------------------------------------------------------------------
225			// Construction, initialization, and destruction
226			// ----------------------------------------------------------------------
227
228			//! Construct object FileDownlink
229			//!
230			FileDownlink(const char* const compName //!< The component name
231			);
232
233			//! Configure FileDownlink component
234			//!
235			void configure(U32 cooldown, //!< Cooldown (in ms) between finishing a downlink and starting the next file.
236			U32 cycleTime, //!< Rate at which we are running
237			U32 fileQueueDepth //!< Max number of items in file downlink queue
238			);
239
240			//! Restrict SendFile / SendPartial reads to paths under the configured directory.
241			//! Fail-open: until called, the sandbox defaults to `/` (any readable path is allowed).
242			void configure(const char* directory);
243
244			//! Cleans up file queue before dispatching to underlying component
245			void deinit();
246
247			//! Start FileDownlink component
248			//! The component must be configured with configure() before starting.
249			//!
250			void preamble();
251
252			//! Destroy object FileDownlink
253			//!
254			~FileDownlink();
255
256			private:
257			// ----------------------------------------------------------------------
258			// Handler implementations for user-defined typed input ports
259			// ----------------------------------------------------------------------
260
261			//! Handler implementation for Run
262			//!
263			void Run_handler(const FwIndexType portNum, //!< The port number
264			U32 context //!< The call order
265			);
266
267			//! Handler implementation for SendFile
268			//!
269			Svc::SendFileResponse SendFile_handler(
270			const FwIndexType portNum, /!< The port number/
271			const Fw::StringBase& sourceFilename, /!< Path of file to downlink/
272			const Fw::StringBase& destFilename, /!< Path to store downlinked file at/
273			U32 offset, /!< Amount of data in bytes to downlink from file. 0 to read until end of file/
274			U32 length /!< Amount of data in bytes to downlink from file. 0 to read until end of file/
275			);
276
277			//! Handler implementation for bufferReturn
278			//!
279			void bufferReturn_handler(const FwIndexType portNum, //!< The port number
280			Fw::Buffer& fwBuffer);
281
282			//! Handler implementation for pingIn
283			//!
284			void pingIn_handler(const FwIndexType portNum, /!< The port number/
285			U32 key /!< Value to return to pinger/
286			);
287
288			private:
289			// ----------------------------------------------------------------------
290			// Command handler implementations
291			// ----------------------------------------------------------------------
292
293			//! Implementation for FileDownlink_SendFile command handler
294			//!
295			void SendFile_cmdHandler(const FwOpcodeType opCode, //!< The opcode
296			const U32 cmdSeq, //!< The command sequence number
297			const Fw::CmdStringArg& sourceFilename, //!< The name of the on-board file to send
298			const Fw::CmdStringArg& destFilename //!< The name of the destination file on the ground
299			);
300
301			//! Implementation for FileDownlink_Cancel command handler
302			//!
303			void Cancel_cmdHandler(const FwOpcodeType opCode, //!< The opcode
304			const U32 cmdSeq //!< The command sequence number
305			);
306
307			//! Implementation for FILE_DWN_SEND_PARTIAL command handler
308			//!
309			void SendPartial_cmdHandler(
310			FwOpcodeType opCode, //!< The opcode
311			U32 cmdSeq, //!< The command sequence number
312			const Fw::CmdStringArg& sourceFilename, //!< The name of the on-board file to send
313			const Fw::CmdStringArg& destFilename, //!< The name of the destination file on the ground
314			U32 startOffset, //!< Starting offset of the source file
315			U32 length //!< Number of bytes to send from starting offset. Length of 0 implies until the end of the file
316			);
317
318			private:
319			// ----------------------------------------------------------------------
320			// Private helper methods
321			// ----------------------------------------------------------------------
322
323			void sendFile(
324			const Fw::FileNameString& sourceFilename, //!< The name of the on-board file to send
325			const Fw::FileNameString& destFilename, //!< The name of the destination file on the ground
326			U32 startOffset, //!< Starting offset of the source file
327			U32 length //!< Number of bytes to send from starting offset. Length of 0 implies until the end of the file
328			);
329
330			// Individual packet transfer functions
331			Os::File::Status sendDataPacket(U32& byteOffset);
332			void sendCancelPacket();
333			void sendEndPacket();
334			void sendStartPacket();
335			void sendFilePacket(const Fw::FilePacket& filePacket);
336
337			// State-helper functions
338			void exitFileTransfer();
339			void enterCooldown();
340
341			// Function to acquire a buffer internally
342			void getBuffer(Fw::Buffer& buffer, PacketType type);
343			// Downlink the "next" packet
344			void downlinkPacket();
345			// Finish the file transfer
346			void finishHelper(bool is_cancel);
347			// Convert internal status enum to a command response
348			Fw::CmdResponse statusToCmdResp(SendFileStatus status);
349			// Send response after completing file downlink
350			void sendResponse(SendFileStatus resp);
351
352			private:
353			// ----------------------------------------------------------------------
354			// Member variables
355			// ----------------------------------------------------------------------
356
357			//! Whether the configuration function has been called.
358			bool m_configured;
359
360			//! File downlink queue
361			Os::Queue m_fileQueue;
362
363			//! Buffer's memory backing
364			U8 m_memoryStore[COUNT_PACKET_TYPE][FILEDOWNLINK_INTERNAL_BUFFER_SIZE];
365
366			//! The mode
367			Mode m_mode;
368
369			//! The file
370			File m_file;
371
372			//! Files sent
373			FilesSent m_filesSent;
374
375			//! Packets sent
376			PacketsSent m_packetsSent;
377
378			//! Warnings
379			Warnings m_warnings;
380
381			//! The current sequence index
382			U32 m_sequenceIndex;
383
384			//! Timeout threshold (milliseconds) while in WAIT state
385			U32 m_timeout;
386
387			//! Cooldown (in ms) between finishing a downlink and starting the next file.
388			U32 m_cooldown;
389
390			//! current time residing in WAIT state
391			U32 m_curTimer;
392
393			//! rate (milliseconds) at which we are running
394			U32 m_cycleTime;
395
396			////! Buffer for sending file data
397			Fw::Buffer m_buffer;
398
399			//! Buffer size for file data
400			U32 m_bufferSize;
401
402			//! Current byte offset in file
403			U32 m_byteOffset;
404
405			//! Amount of bytes left to read
406			U32 m_endOffset;
407
408			//! Set to true when all data packets have been sent
409			Fw::FilePacket::Type m_lastCompletedType;
410
411			//! Last buffer used
412			U32 m_lastBufferId;
413
414			//! Current in progress file entry from queue
415			struct FileEntry m_curEntry;
416
417			//! Incrementing context id used to unique identify a specific downlink request
418			U32 m_cntxId;
419			};
420
421			} // end namespace Svc
422
423			#endif
424