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2014 network limit 1.2 +utils +toc -doc -drmonero

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new update of the pr with network limits

more debug options:
discarding downloaded blocks all or after given height.
trying to trigger the locking errors.

debug levels polished/tuned to sane values.
debug/logging improved.

warning: this pr should be correct code, but it could make
an existing (in master version) locking error appear more often.

it's a race on the list (map) of peers, e.g. between closing/deleting
them versus working on them in net-limit sleep in sending chunk.

the bug is not in this code/this pr, but in the master version.

the locking problem of master will be fixed in other pr.

problem is ub, and in practice is seems to usually cause program abort
(tested on debian stable with updated gcc). see --help for option
to add sleep to trigger the error faster.
This commit is contained in:
rfree2monero 2015-02-20 22:28:03 +01:00
parent 0f06dca831
commit ae2a50659f
23 changed files with 251 additions and 178 deletions
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53
contrib/otshell_utils/utils.hpp
View file

@ -65,17 +65,54 @@ extern cNullstream g_nullstream; // a stream that does nothing (eats/discards da
// TODO make _dbg_ignore thread-safe everywhere
extern std::mutex gLoggerGuard;
extern std::recursive_mutex gLoggerGuard; // the mutex guarding logging/debugging code e.g. protecting streams, files, etc
std::atomic<int> & gLoggerGuardDepth_Get(); // getter for the global singleton of counter (it guarantees initializing it to 0). This counter shows the current recursion (re-entrant) level of debug macros.
// TODO more debug of the debug system:
// detect lock() error e.g. recursive limit
// detect stream e.g. operator<< error
#define _debug_level_c(CHANNEL,LEVEL,VAR) do { if (_dbg_ignore< LEVEL) { \
nOT::nUtils::gLoggerGuard.try_lock(); \
gCurrentLogger.write_stream(LEVEL,CHANNEL) << nOT::nUtils::get_current_time() << ' ' << OT_CODE_STAMP << ' ' << VAR << gCurrentLogger.endline() << std::flush; \
nOT::nUtils::gLoggerGuard.unlock(); \
#define _debug_level(LEVEL,VAR) do { if (_dbg_ignore< LEVEL) { \
auto level=LEVEL; short int part=0; \
try { \
std::lock_guard<std::recursive_mutex> mutex_guard( nOT::nUtils::gLoggerGuard ); \
part=1; \
try { \
++nOT::nUtils::gLoggerGuardDepth_Get(); \
/* int counter = nOT::nUtils::gLoggerGuardDepth_Get(); if (counter!=1) gCurrentLogger.write_stream(100,"")<<"DEBUG-ERROR: recursion, counter="<<counter<<gCurrentLogger.endline(); */ \
gCurrentLogger.write_stream(LEVEL,"") << nOT::nUtils::get_current_time() << ' ' << OT_CODE_STAMP << ' ' << VAR << gCurrentLogger.endline() << std::flush; \
part=9; \
} catch(...) { \
gCurrentLogger.write_stream(std::max(level,90),"") << nOT::nUtils::get_current_time() << ' ' << OT_CODE_STAMP << ' ' << "(ERROR IN DEBUG)" << gCurrentLogger.endline(); \
--nOT::nUtils::gLoggerGuardDepth_Get(); throw ; \
} \
--nOT::nUtils::gLoggerGuardDepth_Get(); \
} catch(...) { if (part<8) gCurrentLogger.write_stream(100,"")<<"DEBUG-ERROR: problem in debug mechanism e.g. in locking." <<gCurrentLogger.endline(); throw ; } \
} } while(0)
#define _debug_level(LEVEL,VAR) _debug_level_c("",LEVEL,VAR)
// info for code below: oss object is normal stack variable, using it does not need lock protection
#define _debug_level_c(CHANNEL,LEVEL,VAR) do { if (_dbg_ignore< LEVEL) { \
auto level=LEVEL; short int part=0; \
try { \
std::lock_guard<std::recursive_mutex> mutex_guard( nOT::nUtils::gLoggerGuard ); \
part=1; \
try { \
++nOT::nUtils::gLoggerGuardDepth_Get(); \
std::ostringstream oss; \
oss << nOT::nUtils::get_current_time() << ' ' << OT_CODE_STAMP << ' ' << VAR << gCurrentLogger.endline() << std::flush; \
std::string as_string = oss.str(); \
/* int counter = nOT::nUtils::gLoggerGuardDepth_Get(); if (counter!=1) gCurrentLogger.write_stream(100,"")<<"DEBUG-ERROR: recursion, counter="<<counter<<gCurrentLogger.endline(); */ \
gCurrentLogger.write_stream(LEVEL,"" ) << as_string << gCurrentLogger.endline() << std::flush; \
gCurrentLogger.write_stream(LEVEL,CHANNEL) << as_string << gCurrentLogger.endline() << std::flush; \
part=9; \
} catch(...) { \
gCurrentLogger.write_stream(std::max(level,90),CHANNEL) << nOT::nUtils::get_current_time() << ' ' << OT_CODE_STAMP << ' ' << "(ERROR IN DEBUG)" << gCurrentLogger.endline(); \
--nOT::nUtils::gLoggerGuardDepth_Get(); throw ; \
} \
--nOT::nUtils::gLoggerGuardDepth_Get(); \
} catch(...) { if (part<8) gCurrentLogger.write_stream(100,CHANNEL)<<"DEBUG-ERROR: problem in debug mechanism e.g. in locking." <<gCurrentLogger.endline(); throw ; } \
} } while(0)
#define _dbg3(VAR) _debug_level( 20,VAR)
#define _dbg2(VAR) _debug_level( 30,VAR)
@ -98,10 +135,10 @@ extern std::mutex gLoggerGuard;
#define _warn_c(C,VAR) _debug_level_c(C, 90,VAR) // some problem
#define _erro_c(C,VAR) _debug_level_c(C,100,VAR) // error - report
// lock // because od VAR
// lock // because of VAR
#define _scope_debug_level_c(CHANNEL,LEVEL,VAR) \
std::ostringstream debug_detail_oss; \
nOT::nUtils::gLoggerGuard.try_lock(); \
nOT::nUtils::gLoggerGuard.lock(); \
debug_detail_oss << OT_CODE_STAMP << ' ' << VAR ; \
nOT::nUtils::nDetail::cDebugScopeGuard debugScopeGuard; \
if (_dbg_ignore<LEVEL) debugScopeGuard.Assign(CHANNEL,LEVEL, debug_detail_oss.str()); \