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Solaris Containers: Resource Management and Solaris Zones Developer's Guide
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Programming Issues With exacct Files

  • Memory management

    • Use the same allocation flags for ea_free_object() and ea_unpack_object().

    • For string objects, an ea_set_item() results in allocation, and should be followed by ea_free_item(obj, EUP_ALLOC) to free internal storage.

    • ea_pack_object() and getacct() use zero size. To get size. getacct() should be called twice: first time with NULL buffer to size buffer to be passed in the second call. See Example 3-1 in C Code Examples for Accessing exacct Files.

  • Applications should skip unknown exacct records in exacct files produced by the system, to be robust in the face of changes to exacct file content.

  • Use EXC_LOCAL for customized accounting. Application-specific records can be created using EXC_LOCAL. Use libexacct as general tracing or debugging facility.

    • See <sys/exacct_catalog.h>.

    • Data id field of ea_catalog_t can be customized.

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