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   6 .TH POOL_COMPONENT_INFO 3POOL "April 9, 2016"
   7 .SH NAME
   8 pool_component_info, pool_get_owning_resource \- resource pool component
   9 functions
  10 .SH SYNOPSIS
  11 .LP
  12 .nf
  13 cc [ \fIflag\fR\&.\|.\|. ] \fIfile\fR\&.\|.\|. \fB-lpool\fR [ \fIlibrary\fR\&.\|.\|. ]
  14 #include <pool.h>
  15 
  16 \fBconst char *\fR\fBpool_component_info\fR(\fBpool_conf_t *\fR\fIconf\fR,
  17      \fBpool_component_t *\fR\fIcomponent\fR, \fBint\fR \fIflags\fR);
  18 .fi
  19 
  20 .LP
  21 .nf
  22 \fBpool_resource_t *\fR\fBpool_get_owning_resource\fR(\fBpool_conf_t *\fR\fIconf\fR,
  23      \fBpool_component_t *\fR\fIcomponent\fR);
  24 .fi
  25 
  26 .SH DESCRIPTION
  27 .LP
  28 Certain resources, such as processor sets, are composed of resource components.
  29 Informational and ownership attributes of resource components are made
  30 available with the \fBpool_component_info()\fR and
  31 \fBpool_get_owning_resource()\fR functions. The \fIconf\fR argument for each
  32 function refers to the target configuration to which the operation applies.
  33 .sp
  34 .LP
  35 The \fBpool_component_info()\fR function returns a string describing
  36 \fIcomponent\fR. The string is allocated with \fBmalloc\fR(3C). The caller is
  37 responsible for freeing the returned string. The \fIflags\fR argument is
  38 ignored.
  39 .sp
  40 .LP
  41 The \fBpool_get_owning_resource()\fR function returns the resource currently
  42 containing \fIcomponent\fR.  Every component is contained by a resource.
  43 .SH RETURN VALUES
  44 .LP
  45 Upon successful completion, \fBpool_component_info()\fR returns a string.
  46 Otherwise it returns \fINULL\fR and \fBpool_error\fR(3POOL) returns the
  47 pool-specific error value.
  48 .sp
  49 .LP
  50 Upon successful completion, \fBpool_get_owning_resource()\fR returns the owning
  51 resource. Otherwise it returns \fINULL\fR and \fBpool_error()\fR returns the
  52 pool-specific error value.
  53 .SH ERRORS
  54 .LP
  55 The \fBpool_component_info()\fR function will fail if:
  56 .sp
  57 .ne 2
  58 .na
  59 \fB\fBPOE_BADPARAM\fR\fR
  60 .ad
  61 .RS 20n
  62 The supplied configuration's status is not \fBPOF_VALID\fR or the \fIflags\fR
  63 paramter is neither 0 or 1.
  64 .RE
  65 
  66 .sp
  67 .ne 2
  68 .na
  69 \fB\fBPOE_INVALID_CONF\fR\fR
  70 .ad
  71 .RS 20n
  72 The configuration is invalid.
  73 .RE
  74 
  75 .sp
  76 .ne 2
  77 .na
  78 \fB\fBPOE_SYSTEM\fR\fR
  79 .ad
  80 .RS 20n
  81 A system error has occurred. Check the system error code for more details.
  82 .RE
  83 
  84 .sp
  85 .LP
  86 The \fBpool_get_owning_resource()\fR function will fail if:
  87 .sp
  88 .ne 2
  89 .na
  90 \fB\fBPOE_BADPARAM\fR\fR
  91 .ad
  92 .RS 16n
  93 The supplied configuration's status is not \fBPOF_VALID\fR.
  94 .RE
  95 
  96 .SH ATTRIBUTES
  97 .LP
  98 See \fBattributes\fR(5) for descriptions of the following attributes:
  99 .sp
 100 
 101 .sp
 102 .TS
 103 box;
 104 c | c
 105 l | l .
 106 ATTRIBUTE TYPE  ATTRIBUTE VALUE
 107 _
 108 CSI     Enabled
 109 _
 110 Interface Stability     Unstable
 111 _
 112 MT-Level        Safe
 113 .TE
 114 
 115 .SH SEE ALSO
 116 .LP
 117 \fBlibpool\fR(3LIB), \fBpool_error\fR(3POOL), \fBattributes\fR(5)