lib/common/scheduler.c

/* */
This source file includes following definitions.
pcmk_get_dc
pcmk_get_no_quorum_policy
pcmk_set_scheduler_cib
pcmk_has_quorum
pcmk_find_node
   1 /*
   2  * Copyright 2004-2024 the Pacemaker project contributors
   3  *
   4  * The version control history for this file may have further details.
   5  *
   6  * This source code is licensed under the GNU Lesser General Public License
   7  * version 2.1 or later (LGPLv2.1+) WITHOUT ANY WARRANTY.
   8  */
   9 
  10 #include <crm_internal.h>
  11 
  12 #include <stdint.h>             // uint32_t
  13 #include <errno.h>              // EINVAL
  14 #include <glib.h>               // gboolean, FALSE
  15 #include <libxml/tree.h>        // xmlNode
  16 
  17 #include <crm/common/scheduler.h>
  18 
  19 uint32_t pcmk__warnings = 0;
  20 
  21 gboolean was_processing_error = FALSE;
  22 gboolean was_processing_warning = FALSE;
  23 
  24 /*!
  25  * \internal
  26  * \brief Get the Designated Controller node from scheduler data
  27  *
  28  * \param[in] scheduler  Scheduler data
  29  *
  30  * \return Designated Controller node from scheduler data, or NULL if none
  31  */
  32 pcmk_node_t *
  33 pcmk_get_dc(const pcmk_scheduler_t *scheduler)
     /*  */
  34 {
  35     return (scheduler == NULL)? NULL : scheduler->dc_node;
  36 }
  37 
  38 /*!
  39  * \internal
  40  * \brief Get the no quorum policy from scheduler data
  41  *
  42  * \param[in] scheduler  Scheduler data
  43  *
  44  * \return No quorum policy from scheduler data
  45  */
  46 enum pe_quorum_policy
  47 pcmk_get_no_quorum_policy(const pcmk_scheduler_t *scheduler)
     /*  */
  48 {
  49     if (scheduler == NULL) {
  50         return pcmk_no_quorum_stop; // The default
  51     }
  52     return scheduler->no_quorum_policy;
  53 }
  54 
  55 /*!
  56  * \internal
  57  * \brief Set CIB XML as scheduler input in scheduler data
  58  *
  59  * \param[out] scheduler  Scheduler data
  60  * \param[in]  cib        CIB XML to set as scheduler input
  61  *
  62  * \return Standard Pacemaker return code (EINVAL if \p scheduler is NULL,
  63  *         otherwise pcmk_rc_ok)
  64  * \note This will not free any previously set scheduler CIB.
  65  */
  66 int
  67 pcmk_set_scheduler_cib(pcmk_scheduler_t *scheduler, xmlNode *cib)
     /*  */
  68 {
  69     if (scheduler == NULL) {
  70         return EINVAL;
  71     }
  72     scheduler->input = cib;
  73     return pcmk_rc_ok;
  74 }
  75 
  76 /*!
  77  * \internal
  78  * \brief Check whether cluster has quorum
  79  *
  80  * \param[in] scheduler  Scheduler data
  81  *
  82  * \return true if cluster has quorum, otherwise false
  83  */
  84 bool
  85 pcmk_has_quorum(const pcmk_scheduler_t *scheduler)
     /*  */
  86 {
  87     if (scheduler == NULL) {
  88         return false;
  89     }
  90     return pcmk_is_set(scheduler->flags, pcmk_sched_quorate);
  91 }
  92 
  93 /*!
  94  * \brief Find a node by name in scheduler data
  95  *
  96  * \param[in] scheduler  Scheduler data
  97  * \param[in] node_name  Name of node to find
  98  *
  99  * \return Node from scheduler data that matches \p node_name if any,
 100  *         otherwise NULL
 101  */
 102 pcmk_node_t *
 103 pcmk_find_node(const pcmk_scheduler_t *scheduler, const char *node_name)
     /*  */
 104 {
 105     if ((scheduler == NULL) || (node_name == NULL)) {
 106         return NULL;
 107     }
 108     return pcmk__find_node_in_list(scheduler->nodes, node_name);
 109 }
/* */
root/lib/common/scheduler.c

DEFINITIONS
