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a51cf49031
Add interface for configurable dwarf cache size * Use item size and round up to nearest power of 2. * Initial cache still exists in BSS. Without this, it means we would fail backtrace when out of memory. The test-mem test fails without this
60 lines
1.6 KiB
TeX
60 lines
1.6 KiB
TeX
\documentclass{article}
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\usepackage[fancyhdr,pdf]{latex2man}
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\input{common.tex}
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\begin{document}
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\begin{Name}{3}{unw\_set\_cache\_size}{Dave Watson}{Programming Library}{unw\_set\_cache\_size}unw\_set\_cache\_size -- set unwind cache size
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\end{Name}
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\section{Synopsis}
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\File{\#include $<$libunwind.h$>$}\\
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\Type{int} \Func{unw\_set\_cache\_size}(\Type{unw\_addr\_space\_t} \Var{as}, \Type{size\_t} \Var{size}, \Type{int} \Var{flag});\\
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\section{Description}
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The \Func{unw\_set\_cache\_size}() routine sets the cache size of
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address space \Var{as} to hold at least as many items as given by
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argument \Var{size}. It may hold more items as determined by the
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implementation. To disable caching, call
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\Func{unw\_set\_caching\_policy}) with a policy of
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\Const{UNW\_CACHE\_NONE}. Flag is currently unused and must be 0.
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\section{Return Value}
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On successful completion, \Func{unw\_set\_cache\_size}() returns 0.
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Otherwise the negative value of one of the error-codes below is
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returned.
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\section{Thread and Signal Safety}
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\Func{unw\_set\_cache\_size}() is thread-safe but \emph{not} safe
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to use from a signal handler.
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\section{Errors}
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\begin{Description}
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\item[\Const{UNW\_ENOMEM}] The desired cache size could not be
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established because the application is out of memory.
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\end{Description}
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\section{See Also}
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\SeeAlso{libunwind(3)},
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\SeeAlso{unw\_create\_addr\_space(3)},
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\SeeAlso{unw\_set\_caching\_policy(3)},
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\SeeAlso{unw\_flush\_cache(3)}
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\section{Author}
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\noindent
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Dave Watson\\
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Email: \Email{dade.watson@gmail.com}\\
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WWW: \URL{http://www.nongnu.org/libunwind/}.
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\LatexManEnd
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\end{document}
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