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Change controller calls that use stream metadata to instantly time out if unavailable, rather than waiting for availability

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This commit is contained in:
Thulinma 2023-08-21 11:20:31 +02:00
parent f19899aed2
commit f3ba13d6bb
4 changed files with 16 additions and 16 deletions
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12
lib/dtsc.cpp
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@ -901,13 +901,13 @@ namespace DTSC{
/// Initialize empty metadata, in master or slave mode.
/// If stream name is empty, slave mode is enforced.
Meta::Meta(const std::string &_streamName, bool master){
Meta::Meta(const std::string &_streamName, bool master, bool autoBackOff){
if (!_streamName.size()){master = false;}
version = DTSH_VERSION;
streamMemBuf = 0;
isMemBuf = false;
isMaster = master;
reInit(_streamName, master);
reInit(_streamName, master, autoBackOff);
}
/// Initialize metadata from given DTSH file in master mode.
@ -926,12 +926,12 @@ namespace DTSC{
/// Calls clear(), then initializes freshly.
/// If stream name is set, uses shared memory backing.
/// If stream name is empty, uses non-shared memory backing.
void Meta::reInit(const std::string &_streamName, bool master){
void Meta::reInit(const std::string &_streamName, bool master, bool autoBackOff){
clear();
if (_streamName == ""){
sBufMem();
}else{
sBufShm(_streamName, DEFAULT_TRACK_COUNT, master);
sBufShm(_streamName, DEFAULT_TRACK_COUNT, master, autoBackOff);
}
streamInit();
}
@ -1118,7 +1118,7 @@ namespace DTSC{
/// Initializes shared memory backed mode, with enough room for the given track count.
/// Should not be called repeatedly, nor to switch modes.
void Meta::sBufShm(const std::string &_streamName, size_t trackCount, bool master){
void Meta::sBufShm(const std::string &_streamName, size_t trackCount, bool master, bool autoBackOff){
isMaster = master;
if (isMaster){HIGH_MSG("Creating meta page for stream %s", _streamName.c_str());}
@ -1142,7 +1142,7 @@ namespace DTSC{
streamPage.master = false;
stream = Util::RelAccX(streamPage.mapped, false);
}else{
streamPage.init(pageName, bufferSize, false, true);
streamPage.init(pageName, bufferSize, false, autoBackOff);
if (!streamPage.mapped){
INFO_MSG("Page %s not found", pageName);
return;

6
lib/dtsc.h
View file

@ -284,11 +284,11 @@ namespace DTSC{
class Meta{
public:
Meta(const std::string &_streamName, const DTSC::Scan &src);
Meta(const std::string &_streamName = "", bool master = true);
Meta(const std::string &_streamName = "", bool master = true, bool autoBackOff = true);
Meta(const std::string &_streamName, const std::string &fileName);
~Meta();
void reInit(const std::string &_streamName, bool master = true);
void reInit(const std::string &_streamName, bool master = true, bool autoBackOff = true);
void reInit(const std::string &_streamName, const std::string &fileName);
void reInit(const std::string &_streamName, const DTSC::Scan &src);
void addTrackFrom(const DTSC::Scan &src);
@ -493,7 +493,7 @@ namespace DTSC{
protected:
void sBufMem(size_t trackCount = DEFAULT_TRACK_COUNT);
void sBufShm(const std::string &_streamName, size_t trackCount = DEFAULT_TRACK_COUNT, bool master = true);
void sBufShm(const std::string &_streamName, size_t trackCount = DEFAULT_TRACK_COUNT, bool master = true, bool autoBackOff = true);
void streamInit(size_t trackCount = DEFAULT_TRACK_COUNT);
std::string streamName;