mas01cr@395: #include "audioDB.h"
mas01cr@395: extern "C" {
mas01cr@395: #include "audioDB_API.h"
mas01cr@402: #include "audioDB-internals.h"
mas01cr@395: }
mas01cr@395: 
mas01cr@395: int audiodb_status(adb_t *adb, adb_status_t *status) {
mas01cr@395:   /* FIXME: it would be nice to be able to test for "is this database
mas01cr@395:      pointer valid", but at the moment we punt that to memory
mas01cr@395:      discipline.  */
mas01cr@395: 
mas01cr@395:   unsigned dudCount = 0;
mas01cr@395:   unsigned nullCount = 0;
mas01cr@395: 
mas01cr@399:   size_t trackTableLength = ALIGN_PAGE_UP(adb->header->numFiles * O2_TRACKTABLE_ENTRY_SIZE);
mas01cr@395:   unsigned *trackTable = 0;
mas01cr@395:   void *tmp = 0;
mas01cr@395:   if (adb->header->length > 0)  {
mas01cr@395:     tmp = mmap(0, trackTableLength, PROT_READ, MAP_SHARED, adb->fd, adb->header->trackTableOffset);
mas01cr@395:     if (tmp == (void *) -1) {
mas01cr@395:       return 1;
mas01cr@395:     }
mas01cr@395:     trackTable = (unsigned *) tmp;
mas01cr@395:   }
mas01cr@395: 
mas01cr@395:   for(unsigned k = 0; k < adb->header->numFiles; k++) {
mas01cr@395:     /* FIXME: this bare "16" here reveals a problem (or maybe two).
mas01cr@395:      * 16 here means the default value of the sequenceLength parameter
mas01cr@395:      * initializer (both in C++ and corresponding to the "-l" or
mas01cr@395:      * "--sequencelength" command-line argument).
mas01cr@395:      *
mas01cr@395:      * The problem is that the API as currently designed provides no
mas01cr@395:      * way to pass that information in to this routine; there's no
mas01cr@395:      * input parameter; nor is there in the SOAP version of this
mas01cr@395:      * query.  However, there /is/ a way to pass that information on
mas01cr@395:      * the command-line -- though that codepath is completely
mas01cr@395:      * untested.  I can see that it might be useful to provide this
mas01cr@395:      * information, but at present it's probably completely unused, so
mas01cr@395:      * the compromise for now is to hardwire the 16.
mas01cr@395:      */ 
mas01cr@395:     if(trackTable[k] < 16) {
mas01cr@395:       dudCount++; 
mas01cr@395:       if(!trackTable[k]) {
mas01cr@395: 	nullCount++; 
mas01cr@395:       } 
mas01cr@395:     }
mas01cr@395:   }
mas01cr@395: 
mas01cr@395:   if(adb->header->length > 0) {
mas01cr@395:     if(munmap(trackTable, trackTableLength)) {
mas01cr@395:       return 1;
mas01cr@395:     }
mas01cr@395:   }
mas01cr@395: 
mas01cr@395:   status->numFiles = adb->header->numFiles;
mas01cr@395:   status->dim = adb->header->dim;
mas01cr@395:   status->length = adb->header->length;
mas01cr@395:   status->dudCount = dudCount;
mas01cr@395:   status->nullCount = nullCount;
mas01cr@395:   status->flags = adb->header->flags;
mas01cr@395:   status->data_region_size = adb->header->timesTableOffset - adb->header->dataOffset;
mas01cr@395: 
mas01cr@395:   return 0;
mas01cr@395: }
mas01cr@395: