Jordan Hanson / Mbed 2 deprecated AutonomousDAQ

Arianna autonomous DAQ firmware

Dependencies:   mbed SDFileSystemFilinfo AriSnProtocol NetServicesMin AriSnComm MODSERIAL PowerControlClkPatch DS1820OW

SnSDUtils.cpp@2:e67f7c158087, 2012-07-24 (annotated)

Committer:
uci1
Date:
Tue Jul 24 02:07:23 2012 +0000
Revision:
2:e67f7c158087
Parent:
1:e392595b4b76
Child:
3:24c5f0f50bf1
added header to i/o. still lots of debugging prints.

Who changed what in which revision?

UserRevisionLine numberNew 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 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 2:e67f7c158087 88 strncpy(fgCurFileName,GetOutFileName(macadr, run, seq),kFNBufSize-1);
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 2:e67f7c158087 93 if (fgCurFile!=NULL && ferror(fgCurFile)==0) {
uci1 2:e67f7c158087 94 WriteFileHeader(fgCurFile, macadr, run, seq);
uci1 2:e67f7c158087 95 }
uci1 0:664899e0b988 96 }
uci1 1:e392595b4b76 97 return fgCurFile;
uci1 0:664899e0b988 98 }
uci1 0:664899e0b988 99
uci1 2:e67f7c158087 100 bool SnSDUtils::WriteFileHeader(FILE* f, const uint64_t macadr,
uci1 2:e67f7c158087 101 const uint32_t run, const uint16_t seq) {
uci1 0:664899e0b988 102 // MUST INCREMENT kIOvers if these writes are altered
uci1 0:664899e0b988 103 fwrite(&kIOvers, sizeof(uint8_t), 1, f);
uci1 0:664899e0b988 104 fwrite(&macadr, sizeof(uint64_t), 1, f);
uci1 2:e67f7c158087 105 fwrite(&run, sizeof(uint32_t), 1, f);
uci1 2:e67f7c158087 106 fwrite(&seq, sizeof(uint16_t), 1, f);
uci1 1:e392595b4b76 107 fflush(f);
uci1 0:664899e0b988 108 return ferror(f);
uci1 0:664899e0b988 109 }
uci1 0:664899e0b988 110
uci1 2:e67f7c158087 111 bool SnSDUtils::ReadFileHeader(FILE* f, uint64_t& macadr,
uci1 2:e67f7c158087 112 uint32_t& run, uint16_t& seq) {
uci1 2:e67f7c158087 113 uint8_t Rv=0;
uci1 2:e67f7c158087 114 fread(&Rv, sizeof(uint8_t), 1, f);
uci1 2:e67f7c158087 115 fread(&macadr, sizeof(uint64_t), 1, f);
uci1 2:e67f7c158087 116 fread(&run, sizeof(uint32_t), 1, f);
uci1 2:e67f7c158087 117 fread(&seq, sizeof(uint16_t), 1, f);
uci1 2:e67f7c158087 118 return ferror(f);
uci1 2:e67f7c158087 119 }
uci1 2:e67f7c158087 120
uci1 0:664899e0b988 121 bool SnSDUtils::WriteEventTo(FILE* efile, char* const evtBuf,
uci1 0:664899e0b988 122 const SnEventFrame& evt,
uci1 0:664899e0b988 123 const SnConfigFrame& conf) {
uci1 0:664899e0b988 124 // write event to SD card
uci1 0:664899e0b988 125
uci1 0:664899e0b988 126 uint8_t sLoseLSB=0, sLoseMSB=0;
uci1 0:664899e0b988 127 uint16_t sWvBase=0;
uci1 0:664899e0b988 128 conf.GetPackParsFor(SnConfigFrame::kSDcard, sLoseLSB, sLoseMSB, sWvBase);
uci1 0:664899e0b988 129 const bool ret = evt.WriteTo(efile, evtBuf, sLoseLSB, sLoseMSB, sWvBase);
uci1 0:664899e0b988 130 fflush(efile);
uci1 0:664899e0b988 131 return ret;
uci1 0:664899e0b988 132 }
uci1 0:664899e0b988 133
uci1 0:664899e0b988 134 bool SnSDUtils::WriteConfig(FILE* efile,
uci1 0:664899e0b988 135 const SnConfigFrame& conf) {
uci1 0:664899e0b988 136 conf.WriteTo(efile);
uci1 0:664899e0b988 137 return true;
uci1 0:664899e0b988 138 }
uci1 0:664899e0b988 139
uci1 0:664899e0b988 140 void SnSDUtils::DeleteFile(FILE*& f, const char* fname) {
uci1 0:664899e0b988 141 fclose(f);
uci1 0:664899e0b988 142 f=0;
uci1 0:664899e0b988 143 remove(fname);
uci1 0:664899e0b988 144 }
uci1 0:664899e0b988 145
uci1 0:664899e0b988 146 SnCommWin::ECommWinResult SnSDUtils::SendAllFiles(SnCommWin* comm,
uci1 0:664899e0b988 147 const bool doDelete) {
uci1 0:664899e0b988 148
uci1 0:664899e0b988 149 DIR* d;
uci1 0:664899e0b988 150 struct dirent* dent;
uci1 0:664899e0b988 151
uci1 0:664899e0b988 152 SnCommWin::ECommWinResult rs = SnCommWin::kUndefFail;
uci1 0:664899e0b988 153
uci1 0:664899e0b988 154 if ( (d = opendir( kSDsubDir ))!=NULL ) {
uci1 0:664899e0b988 155 FILE* f;
uci1 0:664899e0b988 156 while ( (dent = readdir(d))!=NULL ) {
uci1 0:664899e0b988 157 if (strncmp(dent->d_name, "SnEvts", 6)==0) {
uci1 1:e392595b4b76 158 const bool isCurFile =
uci1 1:e392595b4b76 159 (strcmp(dent->d_name, GetCurFileName())==0);
uci1 1:e392595b4b76 160 if (isCurFile) {
uci1 1:e392595b4b76 161 f = GetCurFile();
uci1 1:e392595b4b76 162 } else {
uci1 1:e392595b4b76 163 f = OpenExistingFile(dent->d_name);
uci1 1:e392595b4b76 164 }
uci1 0:664899e0b988 165 rs = comm->SendData(f);
uci1 0:664899e0b988 166 if (rs<SnCommWin::kAllFails) {
uci1 0:664899e0b988 167 break;
uci1 1:e392595b4b76 168 } else if (doDelete && (isCurFile==false)) {
uci1 0:664899e0b988 169 DeleteFile(f, dent->d_name);
uci1 0:664899e0b988 170 }
uci1 0:664899e0b988 171 }
uci1 0:664899e0b988 172 }
uci1 0:664899e0b988 173 closedir(d);
uci1 0:664899e0b988 174 }
uci1 0:664899e0b988 175
uci1 0:664899e0b988 176 return rs;
uci1 0:664899e0b988 177 }
uci1 0:664899e0b988 178