/*
 * Copyright (c) 2004-2010 The Trustees of Indiana University and Indiana
 *                         University Research and Technology
 *                         Corporation.  All rights reserved.
 * Copyright (c) 2004-2011 The University of Tennessee and The University
 *                         of Tennessee Research Foundation.  All rights
 *                         reserved.
 * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
 *                         University of Stuttgart.  All rights reserved.
 * Copyright (c) 2004-2005 The Regents of the University of California.
 *                         All rights reserved.
 * Copyright (c) 2007-2010 Oracle and/or its affiliates.  All rights reserved.
 * Copyright (c) 2007-2017 Cisco Systems, Inc.  All rights reserved
 * Copyright (c) 2011-2013 Los Alamos National Security, LLC.
 *                         All rights reserved.
 * Copyright (c) 2013-2015 Intel, Inc. All rights reserved
 * Copyright (c) 2017      IBM Corporation.  All rights reserved.
 * $COPYRIGHT$
 *
 * Additional copyrights may follow
 *
 * $HEADER$
 */

/**
 * @file
 *
 * Global params for OpenRTE
 */
#ifndef ORTE_RUNTIME_ORTE_GLOBALS_H
#define ORTE_RUNTIME_ORTE_GLOBALS_H

#include "orte_config.h"
#include "orte/types.h"

#include <sys/types.h>
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif

#include "opal/class/opal_hash_table.h"
#include "opal/class/opal_pointer_array.h"
#include "opal/class/opal_value_array.h"
#include "opal/class/opal_ring_buffer.h"
#include "opal/threads/threads.h"
#include "opal/mca/event/event.h"
#include "opal/mca/hwloc/hwloc-internal.h"
#include "opal/mca/hwloc/base/base.h"

#include "orte/mca/plm/plm_types.h"
#include "orte/mca/rml/rml_types.h"
#include "orte/util/attr.h"
#include "orte/util/proc_info.h"
#include "orte/util/name_fns.h"
#include "orte/util/error_strings.h"
#include "orte/runtime/runtime.h"


BEGIN_C_DECLS

ORTE_DECLSPEC extern int orte_debug_verbosity;  /* instantiated in orte/runtime/orte_init.c */
ORTE_DECLSPEC extern char *orte_prohibited_session_dirs;  /* instantiated in orte/runtime/orte_init.c */
ORTE_DECLSPEC extern bool orte_xml_output;  /* instantiated in orte/runtime/orte_globals.c */
ORTE_DECLSPEC extern FILE *orte_xml_fp;   /* instantiated in orte/runtime/orte_globals.c */
ORTE_DECLSPEC extern bool orte_help_want_aggregate;  /* instantiated in orte/util/show_help.c */
ORTE_DECLSPEC extern char *orte_job_ident;  /* instantiated in orte/runtime/orte_globals.c */
ORTE_DECLSPEC extern bool orte_create_session_dirs;  /* instantiated in orte/runtime/orte_init.c */
ORTE_DECLSPEC extern bool orte_execute_quiet;  /* instantiated in orte/runtime/orte_globals.c */
ORTE_DECLSPEC extern bool orte_report_silent_errors;  /* instantiated in orte/runtime/orte_globals.c */
ORTE_DECLSPEC extern opal_event_base_t *orte_event_base;  /* instantiated in orte/runtime/orte_init.c */
ORTE_DECLSPEC extern bool orte_event_base_active; /* instantiated in orte/runtime/orte_init.c */
ORTE_DECLSPEC extern bool orte_proc_is_bound;  /* instantiated in orte/runtime/orte_init.c */
ORTE_DECLSPEC extern int orte_progress_thread_debug;  /* instantiated in orte/runtime/orte_init.c */


/**
 * Global indicating where this process was bound to at launch (will
 * be NULL if !orte_proc_is_bound)
 */
OPAL_DECLSPEC extern hwloc_cpuset_t orte_proc_applied_binding;  /* instantiated in orte/runtime/orte_init.c */


/* Shortcut for some commonly used names */
#define ORTE_NAME_WILDCARD      (&orte_name_wildcard)
ORTE_DECLSPEC extern orte_process_name_t orte_name_wildcard;  /** instantiated in orte/runtime/orte_init.c */
#define ORTE_NAME_INVALID       (&orte_name_invalid)
ORTE_DECLSPEC extern orte_process_name_t orte_name_invalid;  /** instantiated in orte/runtime/orte_init.c */

#define ORTE_PROC_MY_NAME       (&orte_process_info.my_name)

/* define a special name that point to my parent (aka the process that spawned me) */
#define ORTE_PROC_MY_PARENT     (&orte_process_info.my_parent)

/* define a special name that belongs to orterun */
#define ORTE_PROC_MY_HNP        (&orte_process_info.my_hnp)

/* define the name of my daemon */
#define ORTE_PROC_MY_DAEMON     (&orte_process_info.my_daemon)

/* define the name of my scheduler */
#define ORTE_PROC_MY_SCHEDULER  (&orte_process_info.my_scheduler)

ORTE_DECLSPEC extern bool orte_in_parallel_debugger;

/* error manager callback function */
typedef void (*orte_err_cb_fn_t)(orte_process_name_t *proc, orte_proc_state_t state, void *cbdata);

/* define an object for timer events */
typedef struct {
    opal_object_t super;
    struct timeval tv;
    opal_event_t *ev;
    void *payload;
} orte_timer_t;
OBJ_CLASS_DECLARATION(orte_timer_t);

ORTE_DECLSPEC extern int orte_exit_status;

/* ORTE event priorities - we define these
 * at levels that permit higher layers such as
 * OMPI to handle their events at higher priority,
 * with the exception of errors. Errors generally
 * require exception handling (e.g., ctrl-c termination)
 * that overrides the need to process MPI messages
 */
#define ORTE_ERROR_PRI  OPAL_EV_ERROR_PRI
#define ORTE_MSG_PRI    OPAL_EV_MSG_LO_PRI
#define ORTE_SYS_PRI    OPAL_EV_SYS_LO_PRI
#define ORTE_INFO_PRI   OPAL_EV_INFO_LO_PRI

/* define some common keys used in ORTE */
#define ORTE_DB_DAEMON_VPID  "orte.daemon.vpid"

/* State Machine lists */
ORTE_DECLSPEC extern opal_list_t orte_job_states;
ORTE_DECLSPEC extern opal_list_t orte_proc_states;

/* a clean output channel without prefix */
ORTE_DECLSPEC extern int orte_clean_output;

#define ORTE_GLOBAL_ARRAY_BLOCK_SIZE    64
#define ORTE_GLOBAL_ARRAY_MAX_SIZE      INT_MAX

/* define a default error return code for ORTE */
#define ORTE_ERROR_DEFAULT_EXIT_CODE    1

/**
 * Define a macro for updating the orte_exit_status
 * The macro provides a convenient way of doing this
 * so that we can add thread locking at some point
 * since the orte_exit_status is a global variable.
 *
 * Ensure that we do not overwrite the exit status if it has
 * already been set to some non-zero value. If we don't make
 * this check, then different parts of the code could overwrite
 * each other's exit status in the case of abnormal termination.
 *
 * For example, if a process aborts, we would record the initial
 * exit code from the aborted process. However, subsequent processes
 * will have been aborted by signal as we kill the job. We don't want
 * the subsequent processes to overwrite the original exit code so
 * we can tell the user the exit code from the process that caused
 * the whole thing to happen.
 */
#define ORTE_UPDATE_EXIT_STATUS(newstatus)                                  \
    do {                                                                    \
        if (0 == orte_exit_status && 0 != newstatus) {                      \
            OPAL_OUTPUT_VERBOSE((1, orte_debug_output,                      \
                                 "%s:%s(%d) updating exit status to %d",    \
                                 ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),        \
                                 __FILE__, __LINE__, newstatus));           \
            orte_exit_status = newstatus;                                   \
        }                                                                   \
    } while(0);

/* sometimes we need to reset the exit status - for example, when we
 * are restarting a failed process
 */
#define ORTE_RESET_EXIT_STATUS()                                \
    do {                                                        \
        OPAL_OUTPUT_VERBOSE((1, orte_debug_output,              \
                            "%s:%s(%d) reseting exit status",   \
                            ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), \
                            __FILE__, __LINE__));               \
        orte_exit_status = 0;                                   \
    } while(0);


/* define a macro for computing time differences - used for timing tests
 * across the code base
 */
#define ORTE_COMPUTE_TIME_DIFF(r, ur, s1, us1, s2, us2)     \
    do {                                                    \
        (r) = (s2) - (s1);                                  \
        if ((us2) >= (us1)) {                               \
            (ur) = (us2) - (us1);                           \
        } else {                                            \
            (r)--;                                          \
            (ur) = 1000000 - (us1) + (us2);                 \
        }                                                   \
    } while(0);

/* define a set of flags to control the launch of a job */
typedef uint16_t orte_job_controls_t;
#define ORTE_JOB_CONTROL    OPAL_UINT16


/* global type definitions used by RTE - instanced in orte_globals.c */

/************
* Declare this to allow us to use it before fully
* defining it - resolves potential circular definition
*/
struct orte_proc_t;
struct orte_job_map_t;
/************/

/**
* Information about a specific application to be launched in the RTE.
 */
typedef struct {
    /** Parent object */
    opal_object_t super;
    /** Unique index when multiple apps per job */
    orte_app_idx_t idx;
    /** Absolute pathname of argv[0] */
    char   *app;
    /** Number of copies of this process that are to be launched */
    orte_std_cntr_t num_procs;
    /** Array of pointers to the proc objects for procs of this app_context
     * NOTE - not always used
     */
    opal_pointer_array_t procs;
    /** State of the app_context */
    orte_app_state_t state;
    /** First MPI rank of this app_context in the job */
    orte_vpid_t first_rank;
    /** Standard argv-style array, including a final NULL pointer */
    char  **argv;
    /** Standard environ-style array, including a final NULL pointer */
    char  **env;
    /** Current working directory for this app */
    char   *cwd;
    /* flags */
    orte_app_context_flags_t flags;
    /* provide a list of attributes for this app_context in place
     * of having a continually-expanding list of fixed-use values.
     * This is a list of opal_value_t's, with the intent of providing
     * flexibility without constantly expanding the memory footprint
     * every time we want some new (rarely used) option
     */
    opal_list_t attributes;
} orte_app_context_t;

ORTE_DECLSPEC OBJ_CLASS_DECLARATION(orte_app_context_t);


typedef struct {
    /** Base object so this can be put on a list */
    opal_list_item_t super;
    /* index of this node object in global array */
    orte_std_cntr_t index;
    /** String node name */
    char *name;
    /* daemon on this node */
    struct orte_proc_t *daemon;
    /** number of procs on this node */
    orte_vpid_t num_procs;
    /* array of pointers to procs on this node */
    opal_pointer_array_t *procs;
    /* next node rank on this node */
    orte_node_rank_t next_node_rank;
    /** State of this node */
    orte_node_state_t state;
    /** A "soft" limit on the number of slots available on the node.
        This will typically correspond to the number of physical CPUs
        that we have been allocated on this note and would be the
        "ideal" number of processes for us to launch. */
    orte_std_cntr_t slots;
    /** How many processes have already been launched, used by one or
        more jobs on this node. */
    orte_std_cntr_t slots_inuse;
    /** A "hard" limit (if set -- a value of 0 implies no hard limit)
        on the number of slots that can be allocated on a given
        node. This is for some environments (e.g. grid) there may be
        fixed limits on the number of slots that can be used.

        This value also could have been a boolean - but we may want to
        allow the hard limit be different than the soft limit - in
        other words allow the node to be oversubscribed up to a
        specified limit.  For example, if we have two processors, we
        may want to allow up to four processes but no more. */
    orte_std_cntr_t slots_max;
    /* system topology for this node */
    hwloc_topology_t topology;
    /* flags */
    orte_node_flags_t flags;
    /* list of orte_attribute_t */
    opal_list_t attributes;
} orte_node_t;
ORTE_DECLSPEC OBJ_CLASS_DECLARATION(orte_node_t);

typedef struct {
    /** Base object so this can be put on a list */
    opal_list_item_t super;
    /* personality for this job */
    char *personality;
    /* jobid for this job */
    orte_jobid_t jobid;
    /* offset to the total number of procs so shared memory
     * components can potentially connect to any spawned jobs*/
    orte_vpid_t offset;
    /* app_context array for this job */
    opal_pointer_array_t *apps;
    /* number of app_contexts in the array */
    orte_app_idx_t num_apps;
    /* rank desiring stdin - for now, either one rank, all ranks
     * (wildcard), or none (invalid)
     */
    orte_vpid_t stdin_target;
    /* total slots allocated to this job */
    orte_std_cntr_t total_slots_alloc;
    /* number of procs in this job */
    orte_vpid_t num_procs;
    /* array of pointers to procs in this job */
    opal_pointer_array_t *procs;
    /* map of the job */
    struct orte_job_map_t *map;
    /* bookmark for where we are in mapping - this
     * indicates the node where we stopped
     */
    orte_node_t *bookmark;
    /* if we are binding, bookmark the index of the
     * last object we bound to */
    unsigned int bkmark_obj;
    /* state of the overall job */
    orte_job_state_t state;
    /* number of procs mapped */
    orte_vpid_t num_mapped;
    /* number of procs launched */
    orte_vpid_t num_launched;
    /* number of procs reporting contact info */
    orte_vpid_t num_reported;
    /* number of procs terminated */
    orte_vpid_t num_terminated;
    /* number of daemons reported launched so we can track progress */
    orte_vpid_t num_daemons_reported;
    /* originator of a dynamic spawn */
    orte_process_name_t originator;
    /* number of local procs */
    orte_vpid_t num_local_procs;
    /* flags */
    orte_job_flags_t flags;
    /* attributes */
    opal_list_t attributes;
} orte_job_t;
ORTE_DECLSPEC OBJ_CLASS_DECLARATION(orte_job_t);

struct orte_proc_t {
    /** Base object so this can be put on a list */
    opal_list_item_t super;
    /* process name */
    orte_process_name_t name;
    /* the vpid of my parent - the daemon vpid for an app
     * or the vpid of the parent in the routing tree of
     * a daemon */
    orte_vpid_t parent;
    /* pid */
    pid_t pid;
    /* local rank amongst my peers on the node
     * where this is running - this value is
     * needed by MPI procs so that the lowest
     * rank on a node can perform certain fns -
     * e.g., open an sm backing file
     */
    orte_local_rank_t local_rank;
    /* local rank on the node across all procs
     * and jobs known to this HNP - this is
     * needed so that procs can do things like
     * know which static IP port to use
     */
    orte_node_rank_t node_rank;
    /* rank of this proc within its app context - this
     * will just equal its vpid for single app_context
     * applications
     */
    int32_t app_rank;
    /* Last state used to trigger the errmgr for this proc */
    orte_proc_state_t last_errmgr_state;
    /* process state */
    orte_proc_state_t state;
    /* exit code */
    orte_exit_code_t exit_code;
    /* the app_context that generated this proc */
    orte_app_idx_t app_idx;
    /* pointer to the node where this proc is executing */
    orte_node_t *node;
    /* RML contact info */
    char *rml_uri;
    /* some boolean flags */
    orte_proc_flags_t flags;
    /* list of opal_value_t attributes */
    opal_list_t attributes;
};
typedef struct orte_proc_t orte_proc_t;
ORTE_DECLSPEC OBJ_CLASS_DECLARATION(orte_proc_t);

/* define an object for storing node topologies */
typedef struct {
    opal_object_t super;
    hwloc_topology_t topo;
    char *sig;
} orte_topology_t;
ORTE_DECLSPEC OBJ_CLASS_DECLARATION(orte_topology_t);

/**
 * Get a job data object
 * We cannot just reference a job data object with its jobid as
 * the jobid is no longer an index into the array. This change
 * was necessitated by modification of the jobid to include
 * an mpirun-unique qualifer to eliminate any global name
 * service
 */
ORTE_DECLSPEC   orte_job_t* orte_get_job_data_object(orte_jobid_t job);

/**
 * Get a proc data object
 */
ORTE_DECLSPEC orte_proc_t* orte_get_proc_object(orte_process_name_t *proc);

/**
 * Get the daemon vpid hosting a given proc
 */
ORTE_DECLSPEC orte_vpid_t orte_get_proc_daemon_vpid(orte_process_name_t *proc);

/* Get the hostname of a proc */
ORTE_DECLSPEC char* orte_get_proc_hostname(orte_process_name_t *proc);

/* get the node rank of a proc */
ORTE_DECLSPEC orte_node_rank_t orte_get_proc_node_rank(orte_process_name_t *proc);

/* Find the lowest vpid alive in a given job */
ORTE_DECLSPEC orte_vpid_t orte_get_lowest_vpid_alive(orte_jobid_t job);

/* global variables used by RTE - instanced in orte_globals.c */
ORTE_DECLSPEC extern bool orte_debug_daemons_flag;
ORTE_DECLSPEC extern bool orte_debug_daemons_file_flag;
ORTE_DECLSPEC extern bool orte_leave_session_attached;
ORTE_DECLSPEC extern bool orte_do_not_launch;
ORTE_DECLSPEC extern bool orted_spin_flag;
ORTE_DECLSPEC extern char *orte_local_cpu_type;
ORTE_DECLSPEC extern char *orte_local_cpu_model;
ORTE_DECLSPEC extern char *orte_basename;
ORTE_DECLSPEC extern bool orte_coprocessors_detected;
ORTE_DECLSPEC extern opal_hash_table_t *orte_coprocessors;
ORTE_DECLSPEC extern char *orte_topo_signature;

/* ORTE OOB port flags */
ORTE_DECLSPEC extern bool orte_static_ports;
ORTE_DECLSPEC extern char *orte_oob_static_ports;
ORTE_DECLSPEC extern bool orte_standalone_operation;

/* nodename flags */
ORTE_DECLSPEC extern bool orte_keep_fqdn_hostnames;
ORTE_DECLSPEC extern bool orte_have_fqdn_allocation;
ORTE_DECLSPEC extern bool orte_show_resolved_nodenames;
ORTE_DECLSPEC extern bool orte_retain_aliases;
ORTE_DECLSPEC extern int orte_use_hostname_alias;

/* debug flags */
ORTE_DECLSPEC extern int orted_debug_failure;
ORTE_DECLSPEC extern int orted_debug_failure_delay;

/* homegeneity flags */
ORTE_DECLSPEC extern bool orte_hetero_apps;
ORTE_DECLSPEC extern bool orte_hetero_nodes;

ORTE_DECLSPEC extern bool orte_never_launched;
ORTE_DECLSPEC extern bool orte_devel_level_output;
ORTE_DECLSPEC extern bool orte_display_topo_with_map;
ORTE_DECLSPEC extern bool orte_display_diffable_output;

ORTE_DECLSPEC extern char **orte_launch_environ;

ORTE_DECLSPEC extern bool orte_hnp_is_allocated;
ORTE_DECLSPEC extern bool orte_allocation_required;
ORTE_DECLSPEC extern bool orte_managed_allocation;
ORTE_DECLSPEC extern char *orte_set_slots;
ORTE_DECLSPEC extern bool orte_display_allocation;
ORTE_DECLSPEC extern bool orte_display_devel_allocation;
ORTE_DECLSPEC extern bool orte_soft_locations;
ORTE_DECLSPEC extern bool orte_hnp_connected;

/* launch agents */
ORTE_DECLSPEC extern char *orte_launch_agent;
ORTE_DECLSPEC extern char **orted_cmd_line;
ORTE_DECLSPEC extern char **orte_fork_agent;

/* debugger job */
ORTE_DECLSPEC extern bool orte_debugger_dump_proctable;
ORTE_DECLSPEC extern char *orte_debugger_test_daemon;
ORTE_DECLSPEC extern bool orte_debugger_test_attach;
ORTE_DECLSPEC extern int orte_debugger_check_rate;

/* exit flags */
ORTE_DECLSPEC extern bool orte_abnormal_term_ordered;
ORTE_DECLSPEC extern bool orte_routing_is_enabled;
ORTE_DECLSPEC extern bool orte_job_term_ordered;
ORTE_DECLSPEC extern bool orte_orteds_term_ordered;
ORTE_DECLSPEC extern bool orte_allowed_exit_without_sync;
ORTE_DECLSPEC extern int orte_startup_timeout;

ORTE_DECLSPEC extern int orte_timeout_usec_per_proc;
ORTE_DECLSPEC extern float orte_max_timeout;
ORTE_DECLSPEC extern orte_timer_t *orte_mpiexec_timeout;
ORTE_DECLSPEC extern opal_buffer_t *orte_tree_launch_cmd;

/* global arrays for data storage */
ORTE_DECLSPEC extern opal_pointer_array_t *orte_job_data;
ORTE_DECLSPEC extern opal_pointer_array_t *orte_node_pool;
ORTE_DECLSPEC extern opal_pointer_array_t *orte_node_topologies;
ORTE_DECLSPEC extern opal_pointer_array_t *orte_local_children;
ORTE_DECLSPEC extern orte_vpid_t orte_total_procs;

/* whether or not to forward SIGTSTP and SIGCONT signals */
ORTE_DECLSPEC extern bool orte_forward_job_control;

/* IOF controls */
ORTE_DECLSPEC extern bool orte_tag_output;
ORTE_DECLSPEC extern bool orte_timestamp_output;
ORTE_DECLSPEC extern char *orte_output_filename;
/* generate new xterm windows to display output from specified ranks */
ORTE_DECLSPEC extern char *orte_xterm;

/* whether or not to report launch progress */
ORTE_DECLSPEC extern bool orte_report_launch_progress;

/* allocation specification */
ORTE_DECLSPEC extern char *orte_default_hostfile;
ORTE_DECLSPEC extern bool orte_default_hostfile_given;
ORTE_DECLSPEC extern char *orte_rankfile;
ORTE_DECLSPEC extern int orte_num_allocated_nodes;
ORTE_DECLSPEC extern char *orte_node_regex;
ORTE_DECLSPEC extern char *orte_default_dash_host;

/* PMI version control */
ORTE_DECLSPEC extern int orted_pmi_version;

/* tool communication controls */
ORTE_DECLSPEC extern bool orte_report_events;
ORTE_DECLSPEC extern char *orte_report_events_uri;

/* process recovery */
ORTE_DECLSPEC extern bool orte_enable_recovery;
ORTE_DECLSPEC extern int32_t orte_max_restarts;
/* barrier control */
ORTE_DECLSPEC extern bool orte_do_not_barrier;

/* exit status reporting */
ORTE_DECLSPEC extern bool orte_report_child_jobs_separately;
ORTE_DECLSPEC extern struct timeval orte_child_time_to_exit;
ORTE_DECLSPEC extern bool orte_abort_non_zero_exit;

/* length of stat history to keep */
ORTE_DECLSPEC extern int orte_stat_history_size;

/* envars to forward */
ORTE_DECLSPEC extern char **orte_forwarded_envars;

/* map-reduce mode */
ORTE_DECLSPEC extern bool orte_map_reduce;
ORTE_DECLSPEC extern bool orte_staged_execution;

/* map stddiag output to stderr so it isn't forwarded to mpirun */
ORTE_DECLSPEC extern bool orte_map_stddiag_to_stderr;
ORTE_DECLSPEC extern bool orte_map_stddiag_to_stdout;

/* maximum size of virtual machine - used to subdivide allocation */
ORTE_DECLSPEC extern int orte_max_vm_size;

/* user debugger */
ORTE_DECLSPEC extern char *orte_base_user_debugger;

/* binding directives for daemons to restrict them
 * to certain cores
 */
ORTE_DECLSPEC extern char *orte_daemon_cores;

/* cutoff for collective modex */
ORTE_DECLSPEC extern uint32_t orte_direct_modex_cutoff;

/* Max time to wait for stack straces to return */
ORTE_DECLSPEC extern int orte_stack_trace_wait_timeout;

END_C_DECLS

#endif /* ORTE_RUNTIME_ORTE_GLOBALS_H */
