src/simix/smx_process_private.h

   1 /* Copyright (c) 2007-2010, 2012-2015. The SimGrid Team.
   2  * All rights reserved.                                                     */
   3
   4 /* This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the license (GNU LGPL) which comes with this package. */
   6
   7 #ifndef _SIMIX_PROCESS_PRIVATE_H
   8 #define _SIMIX_PROCESS_PRIVATE_H
   9
  10 #include <atomic>
  11 #include <functional>
  12 #include <string>
  13
  14 #include <xbt/base.h>
  15 #include <xbt/string.hpp>
  16
  17 #include <simgrid/simix.hpp>
  18 #include "simgrid/simix.h"
  19 #include "popping_private.h"
  20
  21 typedef struct s_smx_process_exit_fun {
  22   int_f_pvoid_pvoid_t fun;
  23   void *arg;
  24 } s_smx_process_exit_fun_t, *smx_process_exit_fun_t;
  25
  26 namespace simgrid {
  27 namespace simix {
  28
  29 class ProcessArg {
  30 public:
  31   std::string name;
  32   std::function<void()> code;
  33   void *data            = nullptr;
  34   const char *hostname  = nullptr;
  35   double kill_time      = 0.0;
  36   xbt_dict_t properties = nullptr;
  37   bool auto_restart     = false;
  38 };
  39
  40 class Process {
  41 public:
  42
  43   // TODO, replace with boost intrusive container hooks
  44   s_xbt_swag_hookup_t process_hookup   = { nullptr, nullptr };   /* simix_global->process_list */
  45   s_xbt_swag_hookup_t synchro_hookup   = { nullptr, nullptr };   /* {mutex,cond,sem}->sleeping */
  46   s_xbt_swag_hookup_t host_proc_hookup = { nullptr, nullptr }; /* smx_host->process_lis */
  47   s_xbt_swag_hookup_t destroy_hookup   = { nullptr, nullptr };   /* simix_global->process_to_destroy */
  48
  49   unsigned long pid  = 0;
  50   unsigned long ppid = 0;
  51   simgrid::xbt::string name;
  52   sg_host_t host        = nullptr;     /* the host on which the process is running */
  53   smx_context_t context = nullptr; /* the context (uctx/raw/thread) that executes the user function */
  54
  55   // TODO, pack them
  56   std::exception_ptr exception;
  57   bool finished     = false;
  58   bool blocked      = false;
  59   bool suspended    = false;
  60   bool auto_restart = false;
  61
  62   sg_host_t new_host            = nullptr;     /* if not null, the host on which the process must migrate to */
  63   smx_synchro_t waiting_synchro = nullptr;  /* the current blocking synchro if any */
  64   xbt_fifo_t comms              = nullptr;       /* the current non-blocking communication synchros */
  65   xbt_dict_t properties         = nullptr;
  66   s_smx_simcall_t simcall;
  67   void *data          = nullptr;    /* kept for compatibility, it should be replaced with moddata */
  68   xbt_dynar_t on_exit = nullptr; /* list of functions executed when the process dies */
  69
  70   std::function<void()> code;
  71   smx_timer_t kill_timer = nullptr;
  72   int segment_index      = 0;    /*Reference to an SMPI process' data segment. Default value is -1 if not in SMPI context*/
  73
  74   friend void intrusive_ptr_add_ref(Process* process)
  75   {
  76     // Atomic operation! Do not split in two instructions!
  77     auto previous = (process->refcount_)++;
  78     xbt_assert(previous != 0);
  79     (void) previous;
  80   }
  81   friend void intrusive_ptr_release(Process* process)
  82   {
  83     // Atomic operation! Do not split in two instructions!
  84     auto count = --(process->refcount_);
  85     if (count == 0)
  86       delete process;
  87   }
  88
  89   ~Process();
  90
  91 private:
  92   std::atomic_int_fast32_t refcount_ { 1 };
  93 };
  94
  95 }
  96 }
  97
  98 typedef simgrid::simix::ProcessArg *smx_process_arg_t;
  99
 100 typedef simgrid::simix::Process* smx_process_t;
 101
 102 SG_BEGIN_DECL()
 103
 104 XBT_PRIVATE smx_process_t SIMIX_process_create(
 105                           const char *name,
 106                           std::function<void()> code,
 107                           void *data,
 108                           const char *hostname,
 109                           double kill_time,
 110                           xbt_dict_t properties,
 111                           int auto_restart,
 112                           smx_process_t parent_process);
 113
 114 XBT_PRIVATE void SIMIX_process_runall(void);
 115 XBT_PRIVATE void SIMIX_process_kill(smx_process_t process, smx_process_t issuer);
 116 XBT_PRIVATE void SIMIX_process_killall(smx_process_t issuer, int reset_pid);
 117 XBT_PRIVATE void SIMIX_process_stop(smx_process_t arg);
 118 XBT_PRIVATE void SIMIX_process_cleanup(smx_process_t arg);
 119 XBT_PRIVATE void SIMIX_process_empty_trash(void);
 120 XBT_PRIVATE void SIMIX_process_yield(smx_process_t self);
 121 XBT_PRIVATE void SIMIX_process_exception_terminate(xbt_ex_t * e);
 122 XBT_PRIVATE void SIMIX_process_change_host(smx_process_t process,
 123              sg_host_t dest);
 124 XBT_PRIVATE smx_synchro_t SIMIX_process_suspend(smx_process_t process, smx_process_t issuer);
 125 XBT_PRIVATE void SIMIX_process_resume(smx_process_t process, smx_process_t issuer);
 126 XBT_PRIVATE int SIMIX_process_get_PID(smx_process_t self);
 127 XBT_PRIVATE int SIMIX_process_get_PPID(smx_process_t self);
 128 XBT_PRIVATE void* SIMIX_process_get_data(smx_process_t process);
 129 XBT_PRIVATE void SIMIX_process_set_data(smx_process_t process, void *data);
 130 XBT_PRIVATE sg_host_t SIMIX_process_get_host(smx_process_t process);
 131 XBT_PRIVATE const char* SIMIX_process_get_name(smx_process_t process);
 132 XBT_PRIVATE smx_process_t SIMIX_process_get_by_name(const char* name);
 133 XBT_PRIVATE int SIMIX_process_is_suspended(smx_process_t process);
 134 XBT_PRIVATE xbt_dict_t SIMIX_process_get_properties(smx_process_t process);
 135 XBT_PRIVATE smx_synchro_t SIMIX_process_join(smx_process_t issuer, smx_process_t process, double timeout);
 136 XBT_PRIVATE smx_synchro_t SIMIX_process_sleep(smx_process_t process, double duration);
 137
 138 XBT_PRIVATE void SIMIX_process_sleep_destroy(smx_synchro_t synchro);
 139 XBT_PRIVATE void SIMIX_process_auto_restart_set(smx_process_t process, int auto_restart);
 140 XBT_PRIVATE smx_process_t SIMIX_process_restart(smx_process_t process, smx_process_t issuer);
 141
 142 void SIMIX_segment_index_set(smx_process_t process, int segment_index);
 143 extern void (*SMPI_switch_data_segment)(int dest);
 144
 145 SG_END_DECL()
 146
 147 #endif