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Oliver Kowalke 2016-03-04 18:06:01 +01:00
commit 1f6f5f61dc
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1
doc/coro.qbk
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@ -53,6 +53,7 @@
[def __getline__ ['std::getline()]] [def __getline__ ['std::getline()]]
[def __handle_read__ ['session::handle_read()]] [def __handle_read__ ['session::handle_read()]]
[def __io_service__ ['boost::asio::io_sevice]] [def __io_service__ ['boost::asio::io_sevice]]
[def __pooled_fixedsize__ ['pooled_fixedsize_stack]]
[def __protected_allocator__ ['protected_fixedsize]] [def __protected_allocator__ ['protected_fixedsize]]
[def __protected_fixedsize__ ['protected_fixedsize_stack]] [def __protected_fixedsize__ ['protected_fixedsize_stack]]
[def __pull_coro__ ['coroutine<>::pull_type]] [def __pull_coro__ ['coroutine<>::pull_type]]

52
doc/stack.qbk
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@ -95,25 +95,25 @@ the highest/lowest address of the stack.]]
[endsect] [endsect]
[section:fixedsize Class ['fixedsize_stack]] [section:pooled_fixedsize Class ['pooled_fixedsize_stack]]
__boost_coroutine__ provides the class __fixedsize__ which models __boost_coroutine__ provides the class __pooled_fixedsize__ which models
the __stack_allocator_concept__. the __stack_allocator_concept__.
In contrast to __protected_fixedsize__ it does not append a guard page at the In contrast to __pooled_fixedsize__ it does not append a guard page at the
end of each stack. The memory is managed internally by end of each stack. The memory is managed internally by
[@http://www.boost.org/doc/libs/release/libs/pool/doc/html/boost/pool.html `boost::pool<>`]. [@http://www.boost.org/doc/libs/release/libs/pool/doc/html/boost/pool.html `boost::pool<>`].
#include <boost/coroutine2/fixedsize_stack.hpp> #include <boost/coroutine2/pooled_fixedsize_stack.hpp>
struct fixedsize_stack { struct pooled_fixedsize_stack {
fixesize_stack(std::size_t size = traits_type::default_size()); pooled_fixedsize_stack(std::size_t size = traits_type::default_size());
stack_context allocate(); stack_context allocate();
void deallocate( stack_context &); void deallocate( stack_context &);
} }
[heading `fixesize_stack(std::size_t stack_size, std::size_t next_size, std::size_t max_size)] [heading `pooled_fixedsize_stack(std::size_t stack_size, std::size_t next_size, std::size_t max_size)`]
[variablelist [variablelist
[[Preconditions:] [`! traits_type::is_unbounded() && ( traits_type::maximum:size() >= stack_size)` [[Preconditions:] [`! traits_type::is_unbounded() && ( traits_type::maximum:size() >= stack_size)`
and `0 < nest_size`.]] and `0 < nest_size`.]]
@ -145,6 +145,44 @@ address of the stack.]]
[endsect] [endsect]
[section:fixedsize Class ['fixedsize_stack]]
__boost_coroutine__ provides the class __fixedsize__ which models
the __stack_allocator_concept__.
In contrast to __protected_fixedsize__ it does not append a guard page at the
end of each stack. The memory is simply managed by `std::malloc()` and
`std::free()`.
#include <boost/context/fixedsize_stack.hpp>
struct fixedsize_stack {
fixedsize_stack(std::size_t size = traits_type::default_size());
stack_context allocate();
void deallocate( stack_context &);
}
[heading `stack_context allocate()`]
[variablelist
[[Preconditions:] [`traits_type::minimum:size() <= size` and
`! traits_type::is_unbounded() && ( traits_type::maximum:size() >= size)`.]]
[[Effects:] [Allocates memory of at least `size` Bytes and stores a pointer to
the stack and its actual size in `sctx`. Depending on the architecture (the
stack grows downwards/upwards) the stored address is the highest/lowest
address of the stack.]]
]
[heading `void deallocate( stack_context & sctx)`]
[variablelist
[[Preconditions:] [`sctx.sp` is valid, `traits_type::minimum:size() <= sctx.size` and
`! traits_type::is_unbounded() && ( traits_type::maximum:size() >= sctx.size)`.]]
[[Effects:] [Deallocates the stack space.]]
]
[endsect]
[section:segmented Class ['segmented_stack]] [section:segmented Class ['segmented_stack]]
__boost_coroutine__ supports usage of a __segmented__, e. g. the size of __boost_coroutine__ supports usage of a __segmented__, e. g. the size of