Arianna autonomous DAQ firmware
Dependencies: mbed SDFileSystemFilinfo AriSnProtocol NetServicesMin AriSnComm MODSERIAL PowerControlClkPatch DS1820OW
SnSDUtils.cpp@1:e392595b4b76, 2012-07-20 (annotated)
- Committer:
- uci1
- Date:
- Fri Jul 20 19:04:02 2012 +0000
- Revision:
- 1:e392595b4b76
- Parent:
- 0:664899e0b988
- Child:
- 2:e67f7c158087
many features checked and working. afar implemented. sending of data not yet tested. contains many debug prints
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 | 1:e392595b4b76 | 12 | char SnSDUtils::fgCurFileName[kFNBufSize]; |
uci1 | 1:e392595b4b76 | 13 | FILE* SnSDUtils::fgCurFile = 0; |
uci1 | 1:e392595b4b76 | 14 | const uint8_t SnSDUtils::kIOvers = 1; |
uci1 | 0:664899e0b988 | 15 | |
uci1 | 0:664899e0b988 | 16 | const char* SnSDUtils::GetOutFileName(const uint64_t macadr, |
uci1 | 0:664899e0b988 | 17 | const uint32_t run, |
uci1 | 0:664899e0b988 | 18 | const uint16_t seq) { |
uci1 | 0:664899e0b988 | 19 | // returns the formatted file name, or NULL if the directory is too long |
uci1 | 0:664899e0b988 | 20 | // and the full name cannot fit in the buffer |
uci1 | 0:664899e0b988 | 21 | // NOTE: this fcn uses a static buffer, and so should not be called |
uci1 | 0:664899e0b988 | 22 | // multiple times in the same line (that includes the calling of functions |
uci1 | 0:664899e0b988 | 23 | // that call this function!) |
uci1 | 0:664899e0b988 | 24 | // |
uci1 | 0:664899e0b988 | 25 | // filename = SnEvtsM[6-byte hex mac adr]r[6-digit run num]s[5-digit seq num].dat |
uci1 | 0:664899e0b988 | 26 | // 35 chars 7 + 12 +1+ 5 +1+ 5 + 4 |
uci1 | 0:664899e0b988 | 27 | |
uci1 | 0:664899e0b988 | 28 | if (strlen(kSDsubDir)<(kFNBufSize-37)) { |
uci1 | 0:664899e0b988 | 29 | static char tbuf[kFNBufSize]; |
uci1 | 0:664899e0b988 | 30 | memset(tbuf, 0, sizeof(char)*kFNBufSize); |
uci1 | 0:664899e0b988 | 31 | // if file name format changes, GetSeqNum must be changed too |
uci1 | 0:664899e0b988 | 32 | sprintf(tbuf, "%s/SnEvtsM%012llXr%05ds%05d.dat", |
uci1 | 0:664899e0b988 | 33 | kSDsubDir, |
uci1 | 0:664899e0b988 | 34 | macadr>>16, // 64 -> 48 bits |
uci1 | 0:664899e0b988 | 35 | run, seq); |
uci1 | 0:664899e0b988 | 36 | return tbuf; |
uci1 | 0:664899e0b988 | 37 | } else { |
uci1 | 0:664899e0b988 | 38 | return NULL; |
uci1 | 0:664899e0b988 | 39 | } |
uci1 | 0:664899e0b988 | 40 | } |
uci1 | 0:664899e0b988 | 41 | |
uci1 | 0:664899e0b988 | 42 | uint16_t SnSDUtils::GetSeqNum(const uint64_t macadr, |
uci1 | 0:664899e0b988 | 43 | const uint32_t run) { |
uci1 | 0:664899e0b988 | 44 | // count the files having expected filename format |
uci1 | 0:664899e0b988 | 45 | |
uci1 | 0:664899e0b988 | 46 | const char* fn = GetOutFileName(macadr, run, 0) |
uci1 | 0:664899e0b988 | 47 | + strlen(kSDsubDir) + 1; // take out dir and '/'s |
uci1 | 0:664899e0b988 | 48 | |
uci1 | 0:664899e0b988 | 49 | DIR* d; |
uci1 | 0:664899e0b988 | 50 | struct dirent* dent; |
uci1 | 0:664899e0b988 | 51 | |
uci1 | 0:664899e0b988 | 52 | uint16_t seq=0; |
uci1 | 0:664899e0b988 | 53 | if ( (d = opendir( kSDsubDir ))!=NULL ) { |
uci1 | 0:664899e0b988 | 54 | // don't compare seq#. don't use num of chars in case seq is >999 |
uci1 | 0:664899e0b988 | 55 | const uint32_t ncomp = strrchr(fn, 's') - fn; |
uci1 | 0:664899e0b988 | 56 | while ( (dent = readdir(d))!=NULL ) { |
uci1 | 0:664899e0b988 | 57 | if (strncmp(dent->d_name, fn, ncomp)==0) { |
uci1 | 0:664899e0b988 | 58 | seq++; |
uci1 | 0:664899e0b988 | 59 | } |
uci1 | 0:664899e0b988 | 60 | } |
uci1 | 0:664899e0b988 | 61 | closedir(d); |
uci1 | 0:664899e0b988 | 62 | } |
uci1 | 0:664899e0b988 | 63 | |
uci1 | 0:664899e0b988 | 64 | return seq; |
uci1 | 0:664899e0b988 | 65 | } |
uci1 | 0:664899e0b988 | 66 | |
uci1 | 0:664899e0b988 | 67 | FILE* SnSDUtils::OpenExistingFile(const char* name) { |
uci1 | 0:664899e0b988 | 68 | FILE* f = 0; |
uci1 | 0:664899e0b988 | 69 | if (name!=NULL) { |
uci1 | 1:e392595b4b76 | 70 | f = OpenSDFile(name); |
uci1 | 0:664899e0b988 | 71 | } |
uci1 | 0:664899e0b988 | 72 | return f; |
uci1 | 0:664899e0b988 | 73 | } |
uci1 | 0:664899e0b988 | 74 | |
uci1 | 1:e392595b4b76 | 75 | FILE* SnSDUtils::OpenSDFile(const char* name) { |
uci1 | 1:e392595b4b76 | 76 | FILE* f = fopen(name, "wb"); |
uci1 | 1:e392595b4b76 | 77 | //setvbuf(f, 0, _IONBF, 0); // no buffering |
uci1 | 1:e392595b4b76 | 78 | return f; |
uci1 | 1:e392595b4b76 | 79 | } |
uci1 | 1:e392595b4b76 | 80 | |
uci1 | 0:664899e0b988 | 81 | FILE* SnSDUtils::OpenNewOutputFile(const uint64_t macadr, |
uci1 | 0:664899e0b988 | 82 | const uint32_t run) { |
uci1 | 0:664899e0b988 | 83 | // opens a new file in the specified directory and writes this |
uci1 | 0:664899e0b988 | 84 | // this mbed's mac address as the first sizeof(uint64_t) bytes (i.e. 4 bytes) |
uci1 | 0:664899e0b988 | 85 | // |
uci1 | 0:664899e0b988 | 86 | const uint16_t seq = GetSeqNum(macadr, run); |
uci1 | 0:664899e0b988 | 87 | memset(fgCurFileName, 0, sizeof(char)*kFNBufSize); |
uci1 | 0:664899e0b988 | 88 | strcpy(fgCurFileName,GetOutFileName(macadr, run, seq)); |
uci1 | 0:664899e0b988 | 89 | //fprintf(stderr,"cur file = %s (%hu)\n\r",fgCurFileName,seq); |
uci1 | 1:e392595b4b76 | 90 | fgCurFile = 0; |
uci1 | 0:664899e0b988 | 91 | if (fgCurFileName!=NULL) { |
uci1 | 1:e392595b4b76 | 92 | fgCurFile = OpenSDFile(fgCurFileName); |
uci1 | 0:664899e0b988 | 93 | } |
uci1 | 1:e392595b4b76 | 94 | return fgCurFile; |
uci1 | 0:664899e0b988 | 95 | } |
uci1 | 0:664899e0b988 | 96 | |
uci1 | 0:664899e0b988 | 97 | bool SnSDUtils::WriteFileHeader(FILE* f, const uint64_t macadr) { |
uci1 | 0:664899e0b988 | 98 | // MUST INCREMENT kIOvers if these writes are altered |
uci1 | 0:664899e0b988 | 99 | fwrite(&kIOvers, sizeof(uint8_t), 1, f); |
uci1 | 0:664899e0b988 | 100 | fwrite(&macadr, sizeof(uint64_t), 1, f); |
uci1 | 1:e392595b4b76 | 101 | fflush(f); |
uci1 | 0:664899e0b988 | 102 | return ferror(f); |
uci1 | 0:664899e0b988 | 103 | } |
uci1 | 0:664899e0b988 | 104 | |
uci1 | 0:664899e0b988 | 105 | bool SnSDUtils::WriteEventTo(FILE* efile, char* const evtBuf, |
uci1 | 0:664899e0b988 | 106 | const SnEventFrame& evt, |
uci1 | 0:664899e0b988 | 107 | const SnConfigFrame& conf) { |
uci1 | 0:664899e0b988 | 108 | // write event to SD card |
uci1 | 0:664899e0b988 | 109 | |
uci1 | 0:664899e0b988 | 110 | uint8_t sLoseLSB=0, sLoseMSB=0; |
uci1 | 0:664899e0b988 | 111 | uint16_t sWvBase=0; |
uci1 | 0:664899e0b988 | 112 | conf.GetPackParsFor(SnConfigFrame::kSDcard, sLoseLSB, sLoseMSB, sWvBase); |
uci1 | 0:664899e0b988 | 113 | const bool ret = evt.WriteTo(efile, evtBuf, sLoseLSB, sLoseMSB, sWvBase); |
uci1 | 0:664899e0b988 | 114 | fflush(efile); |
uci1 | 0:664899e0b988 | 115 | return ret; |
uci1 | 0:664899e0b988 | 116 | } |
uci1 | 0:664899e0b988 | 117 | |
uci1 | 0:664899e0b988 | 118 | bool SnSDUtils::WriteConfig(FILE* efile, |
uci1 | 0:664899e0b988 | 119 | const SnConfigFrame& conf) { |
uci1 | 0:664899e0b988 | 120 | conf.WriteTo(efile); |
uci1 | 0:664899e0b988 | 121 | return true; |
uci1 | 0:664899e0b988 | 122 | } |
uci1 | 0:664899e0b988 | 123 | |
uci1 | 0:664899e0b988 | 124 | void SnSDUtils::DeleteFile(FILE*& f, const char* fname) { |
uci1 | 0:664899e0b988 | 125 | fclose(f); |
uci1 | 0:664899e0b988 | 126 | f=0; |
uci1 | 0:664899e0b988 | 127 | remove(fname); |
uci1 | 0:664899e0b988 | 128 | } |
uci1 | 0:664899e0b988 | 129 | |
uci1 | 0:664899e0b988 | 130 | SnCommWin::ECommWinResult SnSDUtils::SendAllFiles(SnCommWin* comm, |
uci1 | 0:664899e0b988 | 131 | const bool doDelete) { |
uci1 | 0:664899e0b988 | 132 | |
uci1 | 0:664899e0b988 | 133 | DIR* d; |
uci1 | 0:664899e0b988 | 134 | struct dirent* dent; |
uci1 | 0:664899e0b988 | 135 | |
uci1 | 0:664899e0b988 | 136 | SnCommWin::ECommWinResult rs = SnCommWin::kUndefFail; |
uci1 | 0:664899e0b988 | 137 | |
uci1 | 0:664899e0b988 | 138 | if ( (d = opendir( kSDsubDir ))!=NULL ) { |
uci1 | 0:664899e0b988 | 139 | FILE* f; |
uci1 | 0:664899e0b988 | 140 | while ( (dent = readdir(d))!=NULL ) { |
uci1 | 0:664899e0b988 | 141 | if (strncmp(dent->d_name, "SnEvts", 6)==0) { |
uci1 | 1:e392595b4b76 | 142 | const bool isCurFile = |
uci1 | 1:e392595b4b76 | 143 | (strcmp(dent->d_name, GetCurFileName())==0); |
uci1 | 1:e392595b4b76 | 144 | if (isCurFile) { |
uci1 | 1:e392595b4b76 | 145 | f = GetCurFile(); |
uci1 | 1:e392595b4b76 | 146 | } else { |
uci1 | 1:e392595b4b76 | 147 | f = OpenExistingFile(dent->d_name); |
uci1 | 1:e392595b4b76 | 148 | } |
uci1 | 0:664899e0b988 | 149 | rs = comm->SendData(f); |
uci1 | 0:664899e0b988 | 150 | if (rs<SnCommWin::kAllFails) { |
uci1 | 0:664899e0b988 | 151 | break; |
uci1 | 1:e392595b4b76 | 152 | } else if (doDelete && (isCurFile==false)) { |
uci1 | 0:664899e0b988 | 153 | DeleteFile(f, dent->d_name); |
uci1 | 0:664899e0b988 | 154 | } |
uci1 | 0:664899e0b988 | 155 | } |
uci1 | 0:664899e0b988 | 156 | } |
uci1 | 0:664899e0b988 | 157 | closedir(d); |
uci1 | 0:664899e0b988 | 158 | } |
uci1 | 0:664899e0b988 | 159 | |
uci1 | 0:664899e0b988 | 160 | return rs; |
uci1 | 0:664899e0b988 | 161 | } |
uci1 | 0:664899e0b988 | 162 |