Main changes: - COW optimization for safecopy. - safemap, a grant-based interface for sharing memory regions between processes. - Integration with safemap and complete rework of DS, supporting new data types natively (labels, memory ranges, memory mapped ranges). - For further information: http://wiki.minix3.org/en/SummerOfCode2009/MemoryGrants Additional changes not included in the original Wu's branch: - Fixed unhandled case in VM when using COW optimization for safecopy in case of a block that has already been shared as SMAP. - Better interface and naming scheme for sys_saferevmap and ds_retrieve_map calls. - Better input checking in syslib: check for page alignment when creating memory mapping grants. - DS notifies subscribers when an entry is deleted. - Documented the behavior of indirect grants in case of memory mapping. - Test suite in /usr/src/test/safeperf|safecopy|safemap|ds/* reworked and extended. - Minor fixes and general cleanup. - TO-DO: Grant ids should be generated and managed the way endpoints are to make sure grant slots are never misreused.
23 lines
766 B
Text
23 lines
766 B
Text
Test Program for DataServer
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How to run
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==========
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1. Type `make run` to prepare and run test.
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2. When done testing, type `make clean` to clean up.
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How the test works
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==================
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`dstest` tests the new DS API (excluding ds_subscribe() and ds_check()).
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test_u32, test_str, test_mem, test_label, and test_map test U32, STR, MEM, LABEL
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and MAP type respectively.
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Invalid invokation is tested as well. Erroneous conditions are tested only once.
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For example, publishing an entry with same label name, but without
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DSF_OVERWRITE set, is tested in test_u32 and nowhere else again.
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Type-specific features are always tested.
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`subs` tests ds_subscribe() and ds_check(). The server subscribes
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to a U32 type. When `dstest` runs, `subs` catches all the updates.
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