S K UCI / Mbed 2 deprecated AutonomousDAQ

Arianna autonomous DAQ firmware

Dependencies:   mbed SDFileSystemFilinfo AriSnProtocol NetServicesMin AriSnComm MODSERIAL PowerControlClkPatch DS1820OW

SnSDUtils.cpp@19:74155d652c37, 2012-10-02 (annotated)

Committer:
uci1
Date:
Tue Oct 02 01:58:50 2012 +0000
Revision:
19:74155d652c37
Parent:
16:744ce85aede2
Child:
20:e5857b287b3b
Moved output directory of event files to /sd/data in order to avoid the SD file system's maximum number of files in its root directory. Fix bug in SnConfigFrame::SizeOf to account for new i/o version 4 (number of bytes should be equal, tho). This versi...

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 12:d472f9811262 6 #include <string>
uci1 0:664899e0b988 7
uci1 0:664899e0b988 8 #include "SnConfigFrame.h"
uci1 0:664899e0b988 9 #include "SnEventFrame.h"
uci1 0:664899e0b988 10
uci1 15:f2569d8e4176 11 //#define DEBUG
uci1 0:664899e0b988 12
uci1 19:74155d652c37 13 const char* const SnSDUtils::kSDdir = "/sd";
uci1 19:74155d652c37 14 const char* const SnSDUtils::kSDsubDir = "/sd/data";
uci1 2:e67f7c158087 15 char SnSDUtils::fgCurFileName[kFNBufSize]={0};
uci1 1:e392595b4b76 16 FILE* SnSDUtils::fgCurFile = 0;
uci1 12:d472f9811262 17 uint16_t SnSDUtils::fgCurSeq = 0;
uci1 8:95a325df1f6b 18 const uint8_t SnSDUtils::kIOvers = 3;
uci1 5:9cea89700c66 19 const uint32_t SnSDUtils::kMaxSizeOfFileHdr =
uci1 5:9cea89700c66 20 sizeof(uint8_t)+sizeof(uint64_t)+sizeof(uint32_t)+sizeof(uint16_t)
uci1 8:95a325df1f6b 21 +(sizeof(uint8_t)+(2u*sizeof(uint16_t))); // power frame v1
uci1 4:a91682e19d6b 22
uci1 4:a91682e19d6b 23 static const uint16_t __kMaxUShort = ~0;
uci1 0:664899e0b988 24
uci1 0:664899e0b988 25 const char* SnSDUtils::GetOutFileName(const uint64_t macadr,
uci1 0:664899e0b988 26 const uint32_t run,
uci1 0:664899e0b988 27 const uint16_t seq) {
uci1 0:664899e0b988 28 // returns the formatted file name, or NULL if the directory is too long
uci1 0:664899e0b988 29 // and the full name cannot fit in the buffer
uci1 0:664899e0b988 30 // NOTE: this fcn uses a static buffer, and so should not be called
uci1 0:664899e0b988 31 // multiple times in the same line (that includes the calling of functions
uci1 0:664899e0b988 32 // that call this function!)
uci1 0:664899e0b988 33 //
uci1 0:664899e0b988 34 // filename = SnEvtsM[6-byte hex mac adr]r[6-digit run num]s[5-digit seq num].dat
uci1 0:664899e0b988 35 // 35 chars 7 + 12 +1+ 5 +1+ 5 + 4
uci1 0:664899e0b988 36
uci1 0:664899e0b988 37 if (strlen(kSDsubDir)<(kFNBufSize-37)) {
uci1 0:664899e0b988 38 static char tbuf[kFNBufSize];
uci1 0:664899e0b988 39 memset(tbuf, 0, sizeof(char)*kFNBufSize);
uci1 0:664899e0b988 40 // if file name format changes, GetSeqNum must be changed too
uci1 0:664899e0b988 41 sprintf(tbuf, "%s/SnEvtsM%012llXr%05ds%05d.dat",
uci1 0:664899e0b988 42 kSDsubDir,
uci1 0:664899e0b988 43 macadr>>16, // 64 -> 48 bits
uci1 0:664899e0b988 44 run, seq);
uci1 0:664899e0b988 45 return tbuf;
uci1 0:664899e0b988 46 } else {
uci1 0:664899e0b988 47 return NULL;
uci1 0:664899e0b988 48 }
uci1 0:664899e0b988 49 }
uci1 12:d472f9811262 50 /*
uci1 10:3c93db1cfb12 51 uint16_t SnSDUtils::GetCurSeqNum() {
uci1 10:3c93db1cfb12 52 return GetSeqNumFromFileName(fgCurFileName);
uci1 10:3c93db1cfb12 53 }
uci1 12:d472f9811262 54 */
uci1 10:3c93db1cfb12 55 uint16_t SnSDUtils::GetSeqNumFromFileName(const char* fn) {
uci1 10:3c93db1cfb12 56 uint16_t seq=0;
uci1 10:3c93db1cfb12 57 const uint32_t ncomp = strrchr(fn, 's') - fn;
uci1 10:3c93db1cfb12 58 if (ncomp<strlen(fn)) {
uci1 10:3c93db1cfb12 59 sscanf(fn+ncomp,"s%hu.dat",&seq);
uci1 10:3c93db1cfb12 60 }
uci1 10:3c93db1cfb12 61 return seq;
uci1 10:3c93db1cfb12 62 }
uci1 10:3c93db1cfb12 63
uci1 0:664899e0b988 64 uint16_t SnSDUtils::GetSeqNum(const uint64_t macadr,
uci1 0:664899e0b988 65 const uint32_t run) {
uci1 0:664899e0b988 66 // count the files having expected filename format
uci1 0:664899e0b988 67
uci1 0:664899e0b988 68 const char* fn = GetOutFileName(macadr, run, 0)
uci1 0:664899e0b988 69 + strlen(kSDsubDir) + 1; // take out dir and '/'s
uci1 0:664899e0b988 70
uci1 0:664899e0b988 71 DIR* d;
uci1 0:664899e0b988 72 struct dirent* dent;
uci1 0:664899e0b988 73
uci1 6:6f002d202f59 74 uint16_t seq=0, newseq=0;
uci1 0:664899e0b988 75 if ( (d = opendir( kSDsubDir ))!=NULL ) {
uci1 0:664899e0b988 76 // don't compare seq#. don't use num of chars in case seq is >999
uci1 0:664899e0b988 77 const uint32_t ncomp = strrchr(fn, 's') - fn;
uci1 0:664899e0b988 78 while ( (dent = readdir(d))!=NULL ) {
uci1 0:664899e0b988 79 if (strncmp(dent->d_name, fn, ncomp)==0) {
uci1 6:6f002d202f59 80 // allow for deleted files to make gaps.
uci1 6:6f002d202f59 81 // search for highest seq number and increase that
uci1 7:079617408fec 82 sscanf((dent->d_name)+ncomp,"s%hu.dat",&seq);
uci1 12:d472f9811262 83 #ifdef DEBUG
uci1 7:079617408fec 84 /*
uci1 7:079617408fec 85 printf("dn=%s, seq=%hu, __kMaxUShort=%hu\r\n",
uci1 7:079617408fec 86 dent->d_name, seq, __kMaxUShort);
uci1 7:079617408fec 87 */
uci1 12:d472f9811262 88 #endif
uci1 4:a91682e19d6b 89 if (seq==__kMaxUShort) {
uci1 6:6f002d202f59 90 newseq = seq;
uci1 6:6f002d202f59 91 break;
uci1 6:6f002d202f59 92 }
uci1 6:6f002d202f59 93 if (seq>=newseq) {
uci1 6:6f002d202f59 94 newseq=seq+1;
uci1 6:6f002d202f59 95 }
uci1 6:6f002d202f59 96 if (newseq==__kMaxUShort) {
uci1 4:a91682e19d6b 97 break;
uci1 4:a91682e19d6b 98 }
uci1 0:664899e0b988 99 }
uci1 0:664899e0b988 100 }
uci1 0:664899e0b988 101 closedir(d);
uci1 0:664899e0b988 102 }
uci1 7:079617408fec 103
uci1 6:6f002d202f59 104 return newseq;
uci1 0:664899e0b988 105 }
uci1 0:664899e0b988 106
uci1 3:24c5f0f50bf1 107 FILE* SnSDUtils::OpenExistingFile(const char* name, const bool setcurrent) {
uci1 0:664899e0b988 108 FILE* f = 0;
uci1 0:664899e0b988 109 if (name!=NULL) {
uci1 3:24c5f0f50bf1 110 f = OpenSDFile(name, "rb");
uci1 12:d472f9811262 111 /*
uci1 3:24c5f0f50bf1 112 if (setcurrent) {
uci1 3:24c5f0f50bf1 113 fgCurFile = f;
uci1 12:d472f9811262 114 strncpy(fgCurFileName, name, kFNBufSize-1);
uci1 12:d472f9811262 115 fgCurSeq = GetSeqNumFromFileName(fgCurFileName);
uci1 3:24c5f0f50bf1 116 }
uci1 12:d472f9811262 117 */
uci1 0:664899e0b988 118 }
uci1 0:664899e0b988 119 return f;
uci1 0:664899e0b988 120 }
uci1 0:664899e0b988 121
uci1 3:24c5f0f50bf1 122 FILE* SnSDUtils::OpenSDFile(const char* name, const char* mode) {
uci1 12:d472f9811262 123 // TODO: check if we have memory?
uci1 12:d472f9811262 124 std::string fn(name);
uci1 12:d472f9811262 125 if (strncmp(name, kSDsubDir, strlen(kSDsubDir))!=0) {
uci1 12:d472f9811262 126 // filename lacks directory
uci1 12:d472f9811262 127 fn = kSDsubDir;
uci1 12:d472f9811262 128 fn += "/";
uci1 12:d472f9811262 129 fn += name;
uci1 12:d472f9811262 130 }
uci1 12:d472f9811262 131 #ifdef DEBUG
uci1 12:d472f9811262 132 printf("OpenSDFile: %s, mode %s\r\n",fn.c_str(),mode);
uci1 12:d472f9811262 133 #endif
uci1 12:d472f9811262 134 FILE* f = fopen(fn.c_str(), mode);
uci1 1:e392595b4b76 135 //setvbuf(f, 0, _IONBF, 0); // no buffering
uci1 19:74155d652c37 136 #ifdef DEBUG
uci1 19:74155d652c37 137 printf("OpenSDFile: f=%p\r\n",(void*)f);
uci1 19:74155d652c37 138 #endif
uci1 1:e392595b4b76 139 return f;
uci1 1:e392595b4b76 140 }
uci1 1:e392595b4b76 141
uci1 0:664899e0b988 142 FILE* SnSDUtils::OpenNewOutputFile(const uint64_t macadr,
uci1 8:95a325df1f6b 143 const uint32_t run) {
uci1 0:664899e0b988 144 // opens a new file in the specified directory and writes this
uci1 0:664899e0b988 145 // this mbed's mac address as the first sizeof(uint64_t) bytes (i.e. 4 bytes)
uci1 0:664899e0b988 146 //
uci1 12:d472f9811262 147 fgCurSeq = GetSeqNum(macadr, run);
uci1 0:664899e0b988 148 memset(fgCurFileName, 0, sizeof(char)*kFNBufSize);
uci1 12:d472f9811262 149 strncpy(fgCurFileName,GetOutFileName(macadr, run, fgCurSeq),kFNBufSize-1);
uci1 12:d472f9811262 150 //fprintf(stderr,"cur file = %s (%hu)\n\r",fgCurFileName,fgCurSeq);
uci1 1:e392595b4b76 151 fgCurFile = 0;
uci1 0:664899e0b988 152 if (fgCurFileName!=NULL) {
uci1 3:24c5f0f50bf1 153 fgCurFile = OpenSDFile(fgCurFileName, "wb");
uci1 2:e67f7c158087 154 if (fgCurFile!=NULL && ferror(fgCurFile)==0) {
uci1 19:74155d652c37 155 #ifdef DEBUG
uci1 19:74155d652c37 156 printf("Writing file header\r\n");
uci1 19:74155d652c37 157 #endif
uci1 12:d472f9811262 158 WriteFileHeader(fgCurFile, macadr, run, fgCurSeq);
uci1 2:e67f7c158087 159 }
uci1 0:664899e0b988 160 }
uci1 19:74155d652c37 161 #ifdef DEBUG
uci1 19:74155d652c37 162 printf("fgCurFile=%p\r\n",(void*)fgCurFile);
uci1 19:74155d652c37 163 #endif
uci1 1:e392595b4b76 164 return fgCurFile;
uci1 0:664899e0b988 165 }
uci1 0:664899e0b988 166
uci1 0:664899e0b988 167 bool SnSDUtils::WriteEventTo(FILE* efile, char* const evtBuf,
uci1 0:664899e0b988 168 const SnEventFrame& evt,
uci1 0:664899e0b988 169 const SnConfigFrame& conf) {
uci1 0:664899e0b988 170 // write event to SD card
uci1 0:664899e0b988 171
uci1 0:664899e0b988 172 uint8_t sLoseLSB=0, sLoseMSB=0;
uci1 0:664899e0b988 173 uint16_t sWvBase=0;
uci1 0:664899e0b988 174 conf.GetPackParsFor(SnConfigFrame::kSDcard, sLoseLSB, sLoseMSB, sWvBase);
uci1 8:95a325df1f6b 175 SnHeaderFrame::WriteTo(efile, SnHeaderFrame::kEventCode,
uci1 8:95a325df1f6b 176 evt.SizeOf(SnEventFrame::kIOVers, sLoseLSB, sLoseMSB));
uci1 0:664899e0b988 177 const bool ret = evt.WriteTo(efile, evtBuf, sLoseLSB, sLoseMSB, sWvBase);
uci1 0:664899e0b988 178 fflush(efile);
uci1 0:664899e0b988 179 return ret;
uci1 0:664899e0b988 180 }
uci1 0:664899e0b988 181
uci1 0:664899e0b988 182 bool SnSDUtils::WriteConfig(FILE* efile,
uci1 0:664899e0b988 183 const SnConfigFrame& conf) {
uci1 8:95a325df1f6b 184 SnHeaderFrame::WriteTo(efile, SnHeaderFrame::kConfigCode,
uci1 8:95a325df1f6b 185 conf.SizeOf(SnConfigFrame::kIOVers));
uci1 0:664899e0b988 186 conf.WriteTo(efile);
uci1 0:664899e0b988 187 return true;
uci1 0:664899e0b988 188 }
uci1 0:664899e0b988 189
uci1 0:664899e0b988 190 void SnSDUtils::DeleteFile(FILE*& f, const char* fname) {
uci1 0:664899e0b988 191 fclose(f);
uci1 0:664899e0b988 192 f=0;
uci1 0:664899e0b988 193 remove(fname);
uci1 0:664899e0b988 194 }
uci1 0:664899e0b988 195
uci1 0:664899e0b988 196 SnCommWin::ECommWinResult SnSDUtils::SendAllFiles(SnCommWin* comm,
uci1 3:24c5f0f50bf1 197 const uint32_t timeout,
uci1 3:24c5f0f50bf1 198 char* const buf,
uci1 6:6f002d202f59 199 const uint32_t bsize,
uci1 6:6f002d202f59 200 const SnConfigFrame& curConf,
uci1 8:95a325df1f6b 201 SnEventFrame& evt,
uci1 12:d472f9811262 202 SnPowerFrame& pow,
uci1 12:d472f9811262 203 const uint32_t handshakeTimeout) {
uci1 16:744ce85aede2 204
uci1 0:664899e0b988 205 DIR* d;
uci1 0:664899e0b988 206 struct dirent* dent;
uci1 0:664899e0b988 207
uci1 16:744ce85aede2 208 SnCommWin::ECommWinResult rs = SnCommWin::kOkMsgSent;
uci1 0:664899e0b988 209
uci1 12:d472f9811262 210 const bool doDelete = curConf.IsDeletingFiles();
uci1 12:d472f9811262 211
uci1 0:664899e0b988 212 if ( (d = opendir( kSDsubDir ))!=NULL ) {
uci1 0:664899e0b988 213 FILE* f;
uci1 0:664899e0b988 214 while ( (dent = readdir(d))!=NULL ) {
uci1 0:664899e0b988 215 if (strncmp(dent->d_name, "SnEvts", 6)==0) {
uci1 1:e392595b4b76 216 const bool isCurFile =
uci1 1:e392595b4b76 217 (strcmp(dent->d_name, GetCurFileName())==0);
uci1 1:e392595b4b76 218 if (isCurFile) {
uci1 3:24c5f0f50bf1 219 // file must already be written out!
uci1 1:e392595b4b76 220 f = GetCurFile();
uci1 1:e392595b4b76 221 } else {
uci1 3:24c5f0f50bf1 222 f = OpenExistingFile(dent->d_name, false);
uci1 1:e392595b4b76 223 }
uci1 12:d472f9811262 224 #ifdef DEBUG
uci1 12:d472f9811262 225 printf("calling senddata: f=%p (cur %p), fn=%s\r\n",
uci1 12:d472f9811262 226 f, GetCurFile(), dent->d_name);
uci1 12:d472f9811262 227 #endif
uci1 16:744ce85aede2 228 const SnCommWin::ECommWinResult res =
uci1 16:744ce85aede2 229 comm->SendData(f, dent->d_name,
uci1 16:744ce85aede2 230 curConf, evt, pow, buf, bsize,
uci1 16:744ce85aede2 231 0, timeout, handshakeTimeout);
uci1 16:744ce85aede2 232 if (res<rs) {
uci1 16:744ce85aede2 233 rs = res;
uci1 16:744ce85aede2 234 }
uci1 16:744ce85aede2 235 // don't stop if res is bad. don't want one bad file to
uci1 16:744ce85aede2 236 // prevent sending the others
uci1 16:744ce85aede2 237
uci1 12:d472f9811262 238 // send data should close or delete the file (if appropriate)
uci1 12:d472f9811262 239 // unless it's the current file
uci1 3:24c5f0f50bf1 240 if (isCurFile) {
uci1 3:24c5f0f50bf1 241 // move (back) to the end of the file
uci1 3:24c5f0f50bf1 242 // altho hopefully no writing will happen after this
uci1 3:24c5f0f50bf1 243 fseek(fgCurFile, 0, SEEK_END);
uci1 0:664899e0b988 244 }
uci1 0:664899e0b988 245 }
uci1 0:664899e0b988 246 }
uci1 0:664899e0b988 247 closedir(d);
uci1 0:664899e0b988 248 }
uci1 0:664899e0b988 249
uci1 0:664899e0b988 250 return rs;
uci1 0:664899e0b988 251 }
uci1 0:664899e0b988 252