d69a2b6899
This interface represented a 2nd generation attempt at the opaque newlib approach. In other words, it did not involve the 1st generation 'chains'. Instead, 'stacks' were employed. But the interface wasn't user friendly. Users were required to create their own stacks, before calling 'getstack' to retrieve multiple results with a single call. Even worse, sometimes 'read' was required before calling 'get' when working with single results. So this commit represents the 3rd generation approach. We eliminate the burden of 'read' and creating stacks. Rather, beyond those standard 'new', 'ref' and 'unref' functions, we'll offer just 'get' (single result) plus a 'select' function (for multiple results in 1 stack). And along the way, this commit vastly expands the data extracted from /proc/vmstat. All values that currently exist (and their delta equivalents) are now available. Deltas were included for everything because there's no real runtime costs beyond using a little extra memory. The only problem is a lack of documentation for all of those fields, as is reflected in the references below. Oh well, maybe someday someone will dig through kernel sources & finally plug that rather large document gap. [ as an aside, rather than using a 'strcmp' approach ] [ when parsing the /proc/vmstat file, as is found in ] [ the <meminfo> module, we exploit those hash search ] [ provisions that are found in the <search.h> header ] Reference(s): http://www.spinics.net/lists/linux-man/msg09096.html http://www.linuxinsight.com/proc_vmstat.html Signed-off-by: Jim Warner <james.warner@comcast.net>
67 lines
1.4 KiB
Plaintext
67 lines
1.4 KiB
Plaintext
LIBPROCPS_0 {
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global:
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escape_str;
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fatal_proc_unmounted;
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procps_cpu_count;
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procps_diskstat_dev_count;
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procps_diskstat_dev_get;
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procps_diskstat_dev_getbyname;
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procps_diskstat_dev_getname;
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procps_diskstat_dev_isdisk;
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procps_diskstat_new;
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procps_diskstat_read;
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procps_diskstat_ref;
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procps_diskstat_unref;
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procps_hertz_get;
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procps_linux_version;
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procps_loadavg;
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procps_meminfo_new;
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procps_meminfo_ref;
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procps_meminfo_unref;
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procps_meminfo_get;
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procps_meminfo_select;
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procps_ns_get_name;
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procps_ns_get_id;
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procps_ns_read_pid;
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procps_pid_length;
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procps_pids_new;
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procps_pids_ref;
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procps_pids_unref;
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procps_pids_get;
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procps_pids_reap;
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procps_pids_reset;
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procps_pids_select;
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procps_pids_sort;
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procps_slabinfo_new;
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procps_slabinfo_read;
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procps_slabinfo_ref;
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procps_slabinfo_unref;
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procps_slabs_get;
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procps_slabs_getstack;
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procps_slabnode_count;
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procps_slabnode_getname;
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procps_slabnode_get;
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procps_slabnode_getstack;
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procps_slabnode_stack_fill;
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procps_slabnode_stack_alloc;
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procps_slabnode_stacks_fill;
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procps_slabnode_stacks_sort;
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procps_slabnode_stacks_alloc;
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procps_stat_new;
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procps_stat_ref;
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procps_stat_unref;
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procps_stat_get;
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procps_stat_reap;
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procps_stat_select;
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procps_uptime;
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procps_uptime_sprint;
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procps_uptime_sprint_short;
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procps_vmstat_new;
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procps_vmstat_ref;
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procps_vmstat_unref;
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procps_vmstat_get;
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procps_vmstat_select;
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local:
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*;
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};
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