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Diffstat (limited to 'docs/tutorials/021/page04.html')
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1 files changed, 18 insertions, 2 deletions
diff --git a/docs/tutorials/021/page04.html b/docs/tutorials/021/page04.html index a65916da86d..00db7ad203e 100644 --- a/docs/tutorials/021/page04.html +++ b/docs/tutorials/021/page04.html @@ -28,7 +28,7 @@ <font color=blue>#define</font> <font color=purple>MPOOL_H</font> <font color=red>// Everything else we need is in this one header</font> -<font color=blue>#include</font> "<font color=green>ace/Malloc.h</font>" +<font color=blue>#include</font> "<A HREF="../../../ace/Malloc.h">ace/Malloc.h</A>" <font color=blue>#if !defined</font> (<font color=purple>ACE_LACKS_SYSV_SHMEM</font>) @@ -47,7 +47,7 @@ public: Allocator (const char * _name = "<font color=green>MemoryPool</font>"); ~Allocator (void); - typedef ACE_Malloc<ACE_MMAP_Memory_Pool, ACE_SV_Semaphore_Simple> pool_t; + typedef ACE_Malloc<ACE_MMAP_MEMORY_POOL, ACE_SV_Semaphore_Simple> pool_t; <font color=red>// Provide an accessor to the pool. This will also allocate the</font> <font color=red>// pool when first invoked.</font> @@ -89,5 +89,21 @@ public: <font color=blue>#endif</font> <font color=red>/* ACE_LACKS_SYSV_SHMEM */</font> <font color=blue>#endif</font> <font color=red>/* MPOOL_H */</font> </PRE> +<HR> + The really hard stuff is done by the ACE_Malloc<> template. This + template takes two parameters.<sup>*</sup> The first is a + memory pool class to use. ACE has several, I've choosen one + that uses a memory-mapped file. The second parameter is a lock + class of some sort. This is needed so that the ACE_Malloc<> can + protect its internal data. Note that you still have to + provide your own mutex around the data you put into the + malloc'd area. + +<P> + * Actually, some implementations may require a different + number of parameters. + That's why ACE uses those funky macros. ACE_MMAP_MEMORY_POOL + for instance turns into ACE_MMAP_Memory_Pool on Linux but may + do other things on your platform. <P><HR WIDTH="100%"> <CENTER>[<A HREF="../online-tutorials.html">Tutorial Index</A>] [<A HREF="page05.html">Continue This Tutorial</A>]</CENTER> |