Arianna autonomous DAQ firmware
Dependencies: mbed SDFileSystemFilinfo AriSnProtocol NetServicesMin AriSnComm MODSERIAL PowerControlClkPatch DS1820OW
SnSDUtils.cpp@7:079617408fec, 2012-08-04 (annotated)
- Committer:
- uci1
- Date:
- Sat Aug 04 01:48:55 2012 +0000
- Revision:
- 7:079617408fec
- Parent:
- 6:6f002d202f59
- Child:
- 8:95a325df1f6b
Bug fix to seq finder. Comms totally disabled. Many debug messages.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
uci1 | 0:664899e0b988 | 1 | #include "SnSDUtils.h" |
uci1 | 0:664899e0b988 | 2 | |
uci1 | 0:664899e0b988 | 3 | #include "mbed.h" |
uci1 | 0:664899e0b988 | 4 | #include "SDFileSystem.h" |
uci1 | 0:664899e0b988 | 5 | #include <string.h> |
uci1 | 0:664899e0b988 | 6 | |
uci1 | 0:664899e0b988 | 7 | #include "SnConfigFrame.h" |
uci1 | 0:664899e0b988 | 8 | #include "SnEventFrame.h" |
uci1 | 0:664899e0b988 | 9 | |
uci1 | 0:664899e0b988 | 10 | |
uci1 | 1:e392595b4b76 | 11 | const char* const SnSDUtils::kSDsubDir = "/sd"; |
uci1 | 2:e67f7c158087 | 12 | char SnSDUtils::fgCurFileName[kFNBufSize]={0}; |
uci1 | 1:e392595b4b76 | 13 | FILE* SnSDUtils::fgCurFile = 0; |
uci1 | 4:a91682e19d6b | 14 | const uint8_t SnSDUtils::kIOvers = 2; |
uci1 | 5:9cea89700c66 | 15 | const uint32_t SnSDUtils::kMaxSizeOfFileHdr = |
uci1 | 5:9cea89700c66 | 16 | sizeof(uint8_t)+sizeof(uint64_t)+sizeof(uint32_t)+sizeof(uint16_t) |
uci1 | 5:9cea89700c66 | 17 | +SnPowerFrame::kMaxSizeOf; |
uci1 | 4:a91682e19d6b | 18 | |
uci1 | 4:a91682e19d6b | 19 | static const uint16_t __kMaxUShort = ~0; |
uci1 | 0:664899e0b988 | 20 | |
uci1 | 0:664899e0b988 | 21 | const char* SnSDUtils::GetOutFileName(const uint64_t macadr, |
uci1 | 0:664899e0b988 | 22 | const uint32_t run, |
uci1 | 0:664899e0b988 | 23 | const uint16_t seq) { |
uci1 | 0:664899e0b988 | 24 | // returns the formatted file name, or NULL if the directory is too long |
uci1 | 0:664899e0b988 | 25 | // and the full name cannot fit in the buffer |
uci1 | 0:664899e0b988 | 26 | // NOTE: this fcn uses a static buffer, and so should not be called |
uci1 | 0:664899e0b988 | 27 | // multiple times in the same line (that includes the calling of functions |
uci1 | 0:664899e0b988 | 28 | // that call this function!) |
uci1 | 0:664899e0b988 | 29 | // |
uci1 | 0:664899e0b988 | 30 | // filename = SnEvtsM[6-byte hex mac adr]r[6-digit run num]s[5-digit seq num].dat |
uci1 | 0:664899e0b988 | 31 | // 35 chars 7 + 12 +1+ 5 +1+ 5 + 4 |
uci1 | 0:664899e0b988 | 32 | |
uci1 | 0:664899e0b988 | 33 | if (strlen(kSDsubDir)<(kFNBufSize-37)) { |
uci1 | 0:664899e0b988 | 34 | static char tbuf[kFNBufSize]; |
uci1 | 0:664899e0b988 | 35 | memset(tbuf, 0, sizeof(char)*kFNBufSize); |
uci1 | 0:664899e0b988 | 36 | // if file name format changes, GetSeqNum must be changed too |
uci1 | 0:664899e0b988 | 37 | sprintf(tbuf, "%s/SnEvtsM%012llXr%05ds%05d.dat", |
uci1 | 0:664899e0b988 | 38 | kSDsubDir, |
uci1 | 0:664899e0b988 | 39 | macadr>>16, // 64 -> 48 bits |
uci1 | 0:664899e0b988 | 40 | run, seq); |
uci1 | 0:664899e0b988 | 41 | return tbuf; |
uci1 | 0:664899e0b988 | 42 | } else { |
uci1 | 0:664899e0b988 | 43 | return NULL; |
uci1 | 0:664899e0b988 | 44 | } |
uci1 | 0:664899e0b988 | 45 | } |
uci1 | 0:664899e0b988 | 46 | |
uci1 | 0:664899e0b988 | 47 | uint16_t SnSDUtils::GetSeqNum(const uint64_t macadr, |
uci1 | 0:664899e0b988 | 48 | const uint32_t run) { |
uci1 | 0:664899e0b988 | 49 | // count the files having expected filename format |
uci1 | 0:664899e0b988 | 50 | |
uci1 | 0:664899e0b988 | 51 | const char* fn = GetOutFileName(macadr, run, 0) |
uci1 | 0:664899e0b988 | 52 | + strlen(kSDsubDir) + 1; // take out dir and '/'s |
uci1 | 0:664899e0b988 | 53 | |
uci1 | 0:664899e0b988 | 54 | DIR* d; |
uci1 | 0:664899e0b988 | 55 | struct dirent* dent; |
uci1 | 0:664899e0b988 | 56 | |
uci1 | 6:6f002d202f59 | 57 | uint16_t seq=0, newseq=0; |
uci1 | 0:664899e0b988 | 58 | if ( (d = opendir( kSDsubDir ))!=NULL ) { |
uci1 | 0:664899e0b988 | 59 | // don't compare seq#. don't use num of chars in case seq is >999 |
uci1 | 0:664899e0b988 | 60 | const uint32_t ncomp = strrchr(fn, 's') - fn; |
uci1 | 0:664899e0b988 | 61 | while ( (dent = readdir(d))!=NULL ) { |
uci1 | 0:664899e0b988 | 62 | if (strncmp(dent->d_name, fn, ncomp)==0) { |
uci1 | 6:6f002d202f59 | 63 | // allow for deleted files to make gaps. |
uci1 | 6:6f002d202f59 | 64 | // search for highest seq number and increase that |
uci1 | 7:079617408fec | 65 | sscanf((dent->d_name)+ncomp,"s%hu.dat",&seq); |
uci1 | 7:079617408fec | 66 | /* |
uci1 | 7:079617408fec | 67 | printf("dn=%s, seq=%hu, __kMaxUShort=%hu\r\n", |
uci1 | 7:079617408fec | 68 | dent->d_name, seq, __kMaxUShort); |
uci1 | 7:079617408fec | 69 | */ |
uci1 | 4:a91682e19d6b | 70 | if (seq==__kMaxUShort) { |
uci1 | 6:6f002d202f59 | 71 | newseq = seq; |
uci1 | 6:6f002d202f59 | 72 | break; |
uci1 | 6:6f002d202f59 | 73 | } |
uci1 | 6:6f002d202f59 | 74 | if (seq>=newseq) { |
uci1 | 6:6f002d202f59 | 75 | newseq=seq+1; |
uci1 | 6:6f002d202f59 | 76 | } |
uci1 | 6:6f002d202f59 | 77 | if (newseq==__kMaxUShort) { |
uci1 | 4:a91682e19d6b | 78 | break; |
uci1 | 4:a91682e19d6b | 79 | } |
uci1 | 0:664899e0b988 | 80 | } |
uci1 | 0:664899e0b988 | 81 | } |
uci1 | 0:664899e0b988 | 82 | closedir(d); |
uci1 | 0:664899e0b988 | 83 | } |
uci1 | 7:079617408fec | 84 | |
uci1 | 6:6f002d202f59 | 85 | return newseq; |
uci1 | 0:664899e0b988 | 86 | } |
uci1 | 0:664899e0b988 | 87 | |
uci1 | 3:24c5f0f50bf1 | 88 | FILE* SnSDUtils::OpenExistingFile(const char* name, const bool setcurrent) { |
uci1 | 0:664899e0b988 | 89 | FILE* f = 0; |
uci1 | 0:664899e0b988 | 90 | if (name!=NULL) { |
uci1 | 3:24c5f0f50bf1 | 91 | f = OpenSDFile(name, "rb"); |
uci1 | 3:24c5f0f50bf1 | 92 | if (setcurrent) { |
uci1 | 3:24c5f0f50bf1 | 93 | fgCurFile = f; |
uci1 | 3:24c5f0f50bf1 | 94 | } |
uci1 | 0:664899e0b988 | 95 | } |
uci1 | 0:664899e0b988 | 96 | return f; |
uci1 | 0:664899e0b988 | 97 | } |
uci1 | 0:664899e0b988 | 98 | |
uci1 | 3:24c5f0f50bf1 | 99 | FILE* SnSDUtils::OpenSDFile(const char* name, const char* mode) { |
uci1 | 3:24c5f0f50bf1 | 100 | FILE* f = fopen(name, mode); |
uci1 | 1:e392595b4b76 | 101 | //setvbuf(f, 0, _IONBF, 0); // no buffering |
uci1 | 1:e392595b4b76 | 102 | return f; |
uci1 | 1:e392595b4b76 | 103 | } |
uci1 | 1:e392595b4b76 | 104 | |
uci1 | 0:664899e0b988 | 105 | FILE* SnSDUtils::OpenNewOutputFile(const uint64_t macadr, |
uci1 | 4:a91682e19d6b | 106 | const uint32_t run, |
uci1 | 4:a91682e19d6b | 107 | const uint16_t v1, const uint16_t v2) { |
uci1 | 0:664899e0b988 | 108 | // opens a new file in the specified directory and writes this |
uci1 | 0:664899e0b988 | 109 | // this mbed's mac address as the first sizeof(uint64_t) bytes (i.e. 4 bytes) |
uci1 | 0:664899e0b988 | 110 | // |
uci1 | 0:664899e0b988 | 111 | const uint16_t seq = GetSeqNum(macadr, run); |
uci1 | 0:664899e0b988 | 112 | memset(fgCurFileName, 0, sizeof(char)*kFNBufSize); |
uci1 | 2:e67f7c158087 | 113 | strncpy(fgCurFileName,GetOutFileName(macadr, run, seq),kFNBufSize-1); |
uci1 | 0:664899e0b988 | 114 | //fprintf(stderr,"cur file = %s (%hu)\n\r",fgCurFileName,seq); |
uci1 | 1:e392595b4b76 | 115 | fgCurFile = 0; |
uci1 | 0:664899e0b988 | 116 | if (fgCurFileName!=NULL) { |
uci1 | 3:24c5f0f50bf1 | 117 | fgCurFile = OpenSDFile(fgCurFileName, "wb"); |
uci1 | 2:e67f7c158087 | 118 | if (fgCurFile!=NULL && ferror(fgCurFile)==0) { |
uci1 | 4:a91682e19d6b | 119 | WriteFileHeader(fgCurFile, macadr, run, seq, v1, v2); |
uci1 | 2:e67f7c158087 | 120 | } |
uci1 | 0:664899e0b988 | 121 | } |
uci1 | 1:e392595b4b76 | 122 | return fgCurFile; |
uci1 | 0:664899e0b988 | 123 | } |
uci1 | 0:664899e0b988 | 124 | |
uci1 | 0:664899e0b988 | 125 | bool SnSDUtils::WriteEventTo(FILE* efile, char* const evtBuf, |
uci1 | 0:664899e0b988 | 126 | const SnEventFrame& evt, |
uci1 | 0:664899e0b988 | 127 | const SnConfigFrame& conf) { |
uci1 | 0:664899e0b988 | 128 | // write event to SD card |
uci1 | 0:664899e0b988 | 129 | |
uci1 | 0:664899e0b988 | 130 | uint8_t sLoseLSB=0, sLoseMSB=0; |
uci1 | 0:664899e0b988 | 131 | uint16_t sWvBase=0; |
uci1 | 0:664899e0b988 | 132 | conf.GetPackParsFor(SnConfigFrame::kSDcard, sLoseLSB, sLoseMSB, sWvBase); |
uci1 | 0:664899e0b988 | 133 | const bool ret = evt.WriteTo(efile, evtBuf, sLoseLSB, sLoseMSB, sWvBase); |
uci1 | 0:664899e0b988 | 134 | fflush(efile); |
uci1 | 0:664899e0b988 | 135 | return ret; |
uci1 | 0:664899e0b988 | 136 | } |
uci1 | 0:664899e0b988 | 137 | |
uci1 | 0:664899e0b988 | 138 | bool SnSDUtils::WriteConfig(FILE* efile, |
uci1 | 0:664899e0b988 | 139 | const SnConfigFrame& conf) { |
uci1 | 0:664899e0b988 | 140 | conf.WriteTo(efile); |
uci1 | 0:664899e0b988 | 141 | return true; |
uci1 | 0:664899e0b988 | 142 | } |
uci1 | 0:664899e0b988 | 143 | |
uci1 | 0:664899e0b988 | 144 | void SnSDUtils::DeleteFile(FILE*& f, const char* fname) { |
uci1 | 0:664899e0b988 | 145 | fclose(f); |
uci1 | 0:664899e0b988 | 146 | f=0; |
uci1 | 0:664899e0b988 | 147 | remove(fname); |
uci1 | 0:664899e0b988 | 148 | } |
uci1 | 0:664899e0b988 | 149 | |
uci1 | 0:664899e0b988 | 150 | SnCommWin::ECommWinResult SnSDUtils::SendAllFiles(SnCommWin* comm, |
uci1 | 3:24c5f0f50bf1 | 151 | const bool doDelete, |
uci1 | 3:24c5f0f50bf1 | 152 | const uint32_t timeout, |
uci1 | 3:24c5f0f50bf1 | 153 | char* const buf, |
uci1 | 6:6f002d202f59 | 154 | const uint32_t bsize, |
uci1 | 6:6f002d202f59 | 155 | const SnConfigFrame& curConf, |
uci1 | 6:6f002d202f59 | 156 | SnEventFrame& evt) { |
uci1 | 0:664899e0b988 | 157 | |
uci1 | 0:664899e0b988 | 158 | DIR* d; |
uci1 | 0:664899e0b988 | 159 | struct dirent* dent; |
uci1 | 0:664899e0b988 | 160 | |
uci1 | 0:664899e0b988 | 161 | SnCommWin::ECommWinResult rs = SnCommWin::kUndefFail; |
uci1 | 0:664899e0b988 | 162 | |
uci1 | 0:664899e0b988 | 163 | if ( (d = opendir( kSDsubDir ))!=NULL ) { |
uci1 | 0:664899e0b988 | 164 | FILE* f; |
uci1 | 0:664899e0b988 | 165 | while ( (dent = readdir(d))!=NULL ) { |
uci1 | 0:664899e0b988 | 166 | if (strncmp(dent->d_name, "SnEvts", 6)==0) { |
uci1 | 1:e392595b4b76 | 167 | const bool isCurFile = |
uci1 | 1:e392595b4b76 | 168 | (strcmp(dent->d_name, GetCurFileName())==0); |
uci1 | 1:e392595b4b76 | 169 | if (isCurFile) { |
uci1 | 3:24c5f0f50bf1 | 170 | // file must already be written out! |
uci1 | 1:e392595b4b76 | 171 | f = GetCurFile(); |
uci1 | 1:e392595b4b76 | 172 | } else { |
uci1 | 3:24c5f0f50bf1 | 173 | f = OpenExistingFile(dent->d_name, false); |
uci1 | 1:e392595b4b76 | 174 | } |
uci1 | 6:6f002d202f59 | 175 | rs = comm->SendData(f, dent->d_name, |
uci1 | 6:6f002d202f59 | 176 | curConf, evt, buf, bsize, |
uci1 | 6:6f002d202f59 | 177 | 0, timeout, 0); |
uci1 | 3:24c5f0f50bf1 | 178 | if (isCurFile) { |
uci1 | 3:24c5f0f50bf1 | 179 | // move (back) to the end of the file |
uci1 | 3:24c5f0f50bf1 | 180 | // altho hopefully no writing will happen after this |
uci1 | 3:24c5f0f50bf1 | 181 | fseek(fgCurFile, 0, SEEK_END); |
uci1 | 0:664899e0b988 | 182 | } |
uci1 | 0:664899e0b988 | 183 | } |
uci1 | 0:664899e0b988 | 184 | } |
uci1 | 0:664899e0b988 | 185 | closedir(d); |
uci1 | 0:664899e0b988 | 186 | } |
uci1 | 0:664899e0b988 | 187 | |
uci1 | 0:664899e0b988 | 188 | return rs; |
uci1 | 0:664899e0b988 | 189 | } |
uci1 | 0:664899e0b988 | 190 |