IfsReturnCode IfsHandleInfo(IfsHandle ifsHandle, // Input
IfsInfo ** ppIfsInfo // Output (use IfsFreeInfo() to g_free)
)
{
IfsReturnCode ifsReturnCode;
IfsBoolean retry = IfsTrue;
if (ppIfsInfo == NULL)
{
RILOG_ERROR(
"IfsReturnCodeBadInputParameter: ppIfsInfo == NULL in line %d of %s\n",
__LINE__, __FILE__);
return IfsReturnCodeBadInputParameter;
}
else
*ppIfsInfo = NULL;
if (ifsHandle == NULL)
{
RILOG_ERROR(
"IfsReturnCodeBadInputParameter: ifsHandle == NULL in line %d of %s\n",
__LINE__, __FILE__);
return IfsReturnCodeBadInputParameter;
}
g_static_mutex_lock(&(ifsHandle->mutex));
do
{
ifsReturnCode = GetCurrentFileParameters(ifsHandle);
if (ifsReturnCode == IfsReturnCodeNoErrorReported)
{
break;
}
else if (retry == IfsFalse)
{
g_static_mutex_unlock(&(ifsHandle->mutex));
return ifsReturnCode;
}
else
{
retry = IfsFalse;
RILOG_INFO("%s: GetCurrentFileParameters retry at %d of %s\n",
__FUNCTION__, __LINE__, __FILE__);
}
} while (retry == IfsTrue);
{ // scope
IfsInfo * pIfsInfo;
const size_t pathSize = strlen(ifsHandle->path) + 1;
const size_t nameSize = strlen(ifsHandle->name) + 1;
const IfsClock difClock = ifsHandle->endClock - ifsHandle->begClock;
pIfsInfo = g_malloc0(sizeof(IfsInfo)); // g_free in IfsFreeInfo()
if (pIfsInfo == NULL)
{
RILOG_CRIT(
"IfsReturnCodeMemAllocationError: pIfsInfo == NULL in line %d of %s\n",
__LINE__, __FILE__);
g_static_mutex_unlock(&(ifsHandle->mutex));
return IfsReturnCodeMemAllocationError;
}
pIfsInfo->codec = g_malloc0(sizeof(IfsCodecImpl)); // g_free in IfsFreeInfo()
pIfsInfo->maxSize = ifsHandle->maxSize; // in seconds, 0 = value not used
pIfsInfo->path = NULL; // filled in below
pIfsInfo->name = NULL; // filled in below
pIfsInfo->mpegSize = ifsHandle->mpegSize;
pIfsInfo->ndexSize = ifsHandle->ndexSize;
pIfsInfo->begClock = (ifsHandle->maxSize && (difClock
> ifsHandle->maxSize * NSEC_PER_SEC) ? ifsHandle->endClock
- ifsHandle->maxSize * NSEC_PER_SEC : ifsHandle->begClock);
pIfsInfo->endClock = ifsHandle->endClock; // in nanoseconds
switch (ifsHandle->codecType)
{
case IfsCodecTypeH261:
case IfsCodecTypeH262:
case IfsCodecTypeH263:
pIfsInfo->codec->h262 = g_malloc0(sizeof(IfsH262CodecImpl)); // g_free in IfsFreeInfo()
pIfsInfo->codec->h262->videoPid = ifsHandle->codec->h262->videoPid;
pIfsInfo->codec->h262->audioPid = ifsHandle->codec->h262->audioPid;
break;
case IfsCodecTypeH264:
pIfsInfo->codec->h264 = g_malloc0(sizeof(IfsH264CodecImpl)); // g_free in IfsFreeInfo()
break;
case IfsCodecTypeH265:
pIfsInfo->codec->h265 = g_malloc0(sizeof(IfsH265CodecImpl)); // g_free in IfsFreeInfo()
break;
default:
RILOG_ERROR("IfsReturnCodeBadInputParameter: "
"invalid CODEC line %d of %s\n", __LINE__, __FILE__);
ifsReturnCode = IfsReturnCodeBadInputParameter;
break;
}
pIfsInfo->path = g_malloc0(pathSize); // g_free in IfsFreeInfo()
pIfsInfo->name = g_malloc0(nameSize); // g_free in IfsFreeInfo()
if (pIfsInfo->path == NULL)
{
(void) IfsFreeInfo(pIfsInfo); // Ignore any errors, we already have one...
RILOG_CRIT(
"IfsReturnCodeMemAllocationError: pIfsInfo->path == NULL in line %d of %s\n",
__LINE__, __FILE__);
g_static_mutex_unlock(&(ifsHandle->mutex));
return IfsReturnCodeMemAllocationError;
}
if (pIfsInfo->name == NULL)
{
(void) IfsFreeInfo(pIfsInfo); // Ignore any errors, we already have one...
RILOG_CRIT(
"IfsReturnCodeMemAllocationError: pIfsInfo->name == NULL in line %d of %s\n",
__LINE__, __FILE__);
g_static_mutex_unlock(&(ifsHandle->mutex));
return IfsReturnCodeMemAllocationError;
}
memcpy(pIfsInfo->path, ifsHandle->path, pathSize);
memcpy(pIfsInfo->name, ifsHandle->name, nameSize);
*ppIfsInfo = pIfsInfo;
}
g_static_mutex_unlock(&(ifsHandle->mutex));
return IfsReturnCodeNoErrorReported;
}
static IfsReturnCode IfsOpenImpl(IfsBoolean isReading, // Input (if true then path+name must exist and maxSize is ignored)
const char * path, // Input
const char * name, // Input (if writing and NULL the name is generated)
IfsTime maxSize, // Input (in seconds, 0 = no max, ignored if reading)
IfsHandle * pIfsHandle // Output (use IfsClose() to g_free)
)
{
// The various open cases for a writer are:
//
// case char*name maxSize Found Description
// ---- --------- ------- ------ ------------
//
// 1 NULL 0 NA Generate directory and create the single 0000000000 file
//
// 2 NULL not 0 NA Generate directory and create the 0000000001 circular file
//
// 3 not NULL 0 No Create the specified directory and single 0000000000 file
//
// 4 not NULL not 0 No Create the specified directory and the 0000000001 circular file
//
// 5 not NULL 0 Yes If 0000000000 file found open it otherwise report an error
//
// 6 not NULL not 0 Yes If 0000000000 file found error, otherwise open lowest file name
//
// The various open cases for a reader are:
//
// case char*name Found Description
// ---- --------- ------ ------------
//
// 7 NULL NA Report IfsReturnCodeBadInputParameter
//
// 8 not NULL No Report IfsReturnCodeFileWasNotFound
//
// 9 not NULL Yes Open the file for reading
IfsReturnCode ifsReturnCode = IfsReturnCodeNoErrorReported; // used to report errors
IfsHandle ifsHandle; // IfsHandle being created/opened
char temp[256]; // filename only // temporary string storage
// Check the input parameters, initialize the output parameters and report any errors
if (pIfsHandle == NULL)
{
RILOG_ERROR(
"IfsReturnCodeBadInputParameter: pIfsHandle == NULL in line %d of %s\n",
__LINE__, __FILE__);
return IfsReturnCodeBadInputParameter;
}
else
*pIfsHandle = NULL;
if (path == NULL)
{
RILOG_ERROR(
"IfsReturnCodeBadInputParameter: path == NULL in line %d of %s\n",
__LINE__, __FILE__);
return IfsReturnCodeBadInputParameter;
}
// check for NULL or empty string name
if ((name == NULL) || ('\0' == name[0]))
{
if (isReading) // Case 7 - report error
{
RILOG_ERROR(
"IfsReturnCodeBadInputParameter: Reader with name == NULL in line %d of %s\n",
__LINE__, __FILE__);
return IfsReturnCodeBadInputParameter;
}
else // Cases 1 and 2 - generate a directory name
{
// Generated a direcory name of the form XXXXXXXX_xxxx
// where XXXXXXXX is the hex representation of the epoch seconds
// and xxxx is a unique number
static unsigned short uniqueNum = 0u;
static GMutex uniqueLock;
g_mutex_init(&uniqueLock);
unsigned short localUniqueNum = 0u;
g_mutex_lock(&uniqueLock);
localUniqueNum = uniqueNum++;
g_mutex_unlock(&uniqueLock);
if (sprintf(temp, "%08lX_%04X", time(NULL), localUniqueNum)
!= 13)
{
RILOG_ERROR(
"IfsReturnCodeSprintfError: sprintf() != 13 in line %d of %s\n",
__LINE__, __FILE__);
return IfsReturnCodeSprintfError;
}
name = temp;
}
}
// Start the process by allocating memory for the IfsHandle
ifsHandle = g_try_malloc0(sizeof(IfsHandleImpl));
if (ifsHandle == NULL)
{
RILOG_CRIT(
"IfsReturnCodeMemAllocationError: ifsHandle == NULL in line %d of %s\n",
__LINE__, __FILE__);
return IfsReturnCodeMemAllocationError;
}
// Initialize all the pointers in the IfsHandle (except the codec)
g_mutex_init(&(ifsHandle->mutex));
// (done by g_try_malloc0) ifsHandle->path = NULL; // current path
// (done by g_try_malloc0) ifsHandle->name = NULL; // current name
// (done by g_try_malloc0) ifsHandle->both = NULL; // current path + name
// (done by g_try_malloc0) ifsHandle->mpeg = NULL; // current path + name + filename.mpg
// (done by g_try_malloc0) ifsHandle->ndex = NULL; // current path + name + filename.ndx
// (done by g_try_malloc0) ifsHandle->pMpeg = NULL; // current MPEG file
// (done by g_try_malloc0) ifsHandle->pNdex = NULL; // current NDEX file
// Now fill in all the values of the IfsHandle
do
{
struct stat statBuffer;
// Process the input parameters
const size_t pathSize = strlen(path) + 1; // path + \000
const size_t nameSize = strlen(name) + 1; // name + \000
const size_t bothSize = pathSize + nameSize; // path + / + name + \000
if (ifsReturnCode != IfsReturnCodeNoErrorReported)
break;
ifsHandle->numEmptyFreads = 0;
ifsHandle->isReading = isReading;
ifsHandle->maxSize = maxSize; // in seconds, 0 = value not used
ifsHandle->path = g_try_malloc(pathSize);
ifsHandle->name = g_try_malloc(nameSize);
ifsHandle->both = g_try_malloc(bothSize);
if (ifsHandle->path == NULL)
{
RILOG_CRIT(
"IfsReturnCodeMemAllocationError: ifsHandle->path == NULL in line %d of %s\n",
__LINE__, __FILE__);
ifsReturnCode = IfsReturnCodeMemAllocationError;
}
if (ifsHandle->name == NULL)
{
RILOG_CRIT(
"IfsReturnCodeMemAllocationError: ifsHandle->name == NULL in line %d of %s\n",
__LINE__, __FILE__);
ifsReturnCode = IfsReturnCodeMemAllocationError;
}
if (ifsHandle->both == NULL)
{
RILOG_CRIT(
"IfsReturnCodeMemAllocationError: ifsHandle->both == NULL in line %d of %s\n",
__LINE__, __FILE__);
ifsReturnCode = IfsReturnCodeMemAllocationError;
}
if (ifsReturnCode != IfsReturnCodeNoErrorReported)
break;
memcpy(ifsHandle->path, path, pathSize);
memcpy(ifsHandle->name, name, nameSize);
memcpy(ifsHandle->both, path, pathSize);
strcat(ifsHandle->both, "/");
strcat(ifsHandle->both, name);
if (stat(ifsHandle->both, &statBuffer)) // The directory was NOT found
{
if (isReading) // Case 8 - report error
{
RILOG_ERROR(
"IfsReturnCodeFileWasNotFound: stat(%s) failed (%d) in line %d of %s\n",
ifsHandle->both, errno, __LINE__, __FILE__);
ifsReturnCode = IfsReturnCodeFileWasNotFound;
break;
}
// Cases 1 through 4 - make the specified (or generated) directory
if (makedir(ifsHandle->both))
{
RILOG_ERROR(
"IfsReturnCodeMakeDirectoryError: makedir(%s) failed (%d) in line %d of %s\n",
ifsHandle->both, errno, __LINE__, __FILE__);
ifsReturnCode = IfsReturnCodeMakeDirectoryError;
break;
}
// (done by g_try_malloc0) ifsHandle->mpegSize = 0;
// (done by g_try_malloc0) ifsHandle->ndexSize = 0;
ifsHandle->begFileNumber = ifsHandle->endFileNumber = maxSize ? 1
: 0;
// (done by g_try_malloc0) ifsHandle->begClock =
// (done by g_try_malloc0) ifsHandle->endClock =
// (done by g_try_malloc0) ifsHandle->nxtClock = 0; // nanoseconds
ifsReturnCode = IfsOpenActualFiles(ifsHandle,
ifsHandle->begFileNumber, "wb+");
}
else // The directory was found
{
// Cases 5, 6 and 9 - open the existing IFS file
ifsReturnCode = GetCurrentFileParameters(ifsHandle);
}
// (done by g_try_malloc0) ifsHandle->realLoc = 0; // offset in packets
// (done by g_try_malloc0) ifsHandle->virtLoc = 0; // offset in packets
ifsHandle->ifsState = IfsStateInitial;
} while (0);
if (ifsReturnCode == IfsReturnCodeNoErrorReported)
{
*pIfsHandle = ifsHandle;
if ((indexDumpMode == IfsIndexDumpModeAll) && whatAll)
{
#ifdef DEBUG_ALL_PES_CODES
RILOG_INFO("---- ---------------- = -------- --------------- ------------\n");
RILOG_INFO(" %08lX%08lX\n", (unsigned long)(whatAll>>32), (unsigned long)whatAll);
#else
RILOG_INFO(
"---- -------- = -------- --------------- ------------\n");
RILOG_INFO(" %08X\n", whatAll);
#endif
}