#ifndef SIMIX_PRIVATE_H
#define SIMIX_PRIVATE_H
-#include <stdio.h>
#include "simix/simix.h"
#include "surf/surf.h"
#include "xbt/fifo.h"
#include "xbt/dict.h"
#include "xbt/config.h"
#include "xbt/function_types.h"
+#include "xbt/ex_interface.h"
/******************************** Datatypes ***********************************/
/*********************************** Host *************************************/
-/** @brief Host datatype
+/** @brief Host datatype
@ingroup m_datatypes_management_details */
typedef struct s_smx_host {
char *name; /**< @brief host name if any */
/******************************** Process *************************************/
-typedef struct s_smx_context *smx_context_t;
-
/** @brief Process datatype
@ingroup m_datatypes_management_details @{ */
typedef struct s_smx_process {
char *name; /**< @brief process name if any */
smx_host_t smx_host; /* the host on which the process is running */
smx_context_t context; /* the context that executes the scheduler function */
- int argc; /* arguments number if any */
- char **argv; /* arguments table if any */
+ ex_ctx_t *exception;
int blocked : 1;
int suspended : 1;
int iwannadie : 1;
smx_mutex_t mutex; /* mutex on which the process is blocked */
smx_cond_t cond; /* cond on which the process is blocked */
+ smx_sem_t sem; /* semaphore on which the process is blocked */
+ smx_action_t waiting_action;
xbt_dict_t properties;
void *data; /* kept for compatibility, it should be replaced with moddata */
- void_f_pvoid_t cleanup_func;
- void *cleanup_arg;
} s_smx_process_t;
/** @} */
xbt_dict_t properties;
} s_smx_process_arg_t, *smx_process_arg_t;
+void SIMIX_create_maestro_process(void);
+void SIMIX_process_empty_trash(void);
+void SIMIX_process_schedule(smx_process_t process);
+ex_ctx_t *SIMIX_process_get_exception(void);
+void SIMIX_process_exception_terminate(xbt_ex_t * e);
+
/*************************** Mutex and Conditional ****************************/
typedef struct s_smx_mutex {
} s_smx_cond_t;
+typedef struct s_smx_sem {
+ /* KEEP IT IN SYNC WITH src/xbt_sg_thread.c::struct s_xbt_sem */
+ xbt_swag_t sleeping; /* list of sleeping process */
+ int capacity;
+ xbt_fifo_t actions; /* list of actions */
+ /* KEEP IT IN SYNC WITH src/xbt_sg_thread.c::struct s_xbt_sem */
+
+} s_smx_sem_t;
+
+/******************************* Networking ***********************************/
+
+/** @brief Rendez-vous point datatype */
+typedef struct s_smx_rvpoint {
+ char *name;
+ smx_mutex_t read;
+ smx_mutex_t write;
+ xbt_fifo_t comm_fifo;
+ void *data;
+} s_smx_rvpoint_t;
+
+typedef struct s_smx_comm {
+
+
+ smx_comm_type_t type; /* Type of the communication (comm_send,comm_recv) */
+ smx_rdv_t rdv; /* Rendez-vous where the comm is queued */
+ smx_sem_t sem; /* Semaphore associated to the surf simulation */
+ int refcount; /* Number of processes involved in the cond */
+
+ /* Surf action data */
+ smx_process_t src_proc;
+ smx_process_t dst_proc;
+ smx_action_t src_timeout;
+ smx_action_t dst_timeout;
+ smx_action_t act;
+ double rate;
+ double task_size;
+
+ /* Data to be transfered */
+ void *src_buff;
+ void *dst_buff;
+ size_t src_buff_size;
+ size_t *dst_buff_size;
+ void *data; /* User data associated to communication */
+} s_smx_comm_t;
+
+void SIMIX_network_copy_data(smx_comm_t comm);
+smx_comm_t SIMIX_communication_new(smx_comm_type_t type);
+void SIMIX_communication_destroy(smx_comm_t comm);
+static inline void SIMIX_communication_use(smx_comm_t comm);
+static inline void SIMIX_communication_wait_for_completion(smx_comm_t comm, double timeout);
+static inline void SIMIX_rdv_push(smx_rdv_t rdv, smx_comm_t comm);
+static inline void SIMIX_rdv_remove(smx_rdv_t rdv, smx_comm_t comm);
+
/********************************* Action *************************************/
-/** @brief Action datatype
+typedef enum {ready, ongoing, done, failed} smx_action_state_t;
+
+/** @brief Action datatype
@ingroup m_datatypes_management_details */
typedef struct s_smx_action {
char *name; /**< @brief action name if any */
xbt_fifo_t cond_list; /*< conditional variables that must be signaled when the action finish. */
+ xbt_fifo_t sem_list; /*< semaphores that must be signaled when the action finish. */
void *data; /**< @brief user data */
int refcount; /**< @brief reference counter */
surf_action_t surf_action; /* SURF modeling of computation */
/************************** Configuration support *****************************/
-void simix_config_init(void); /* create the config set, call this before use! */
-void simix_config_finalize(void); /* destroy the config set, call this at cleanup. */
-extern int _simix_init_status; /* 0: beginning of time;
- 1: pre-inited (cfg_set created);
+extern int _simix_init_status; /* 0: beginning of time; FIXME: KILLME ?
+ 1: pre-inited (cfg_set created);
2: inited (running) */
-extern xbt_cfg_t _simix_cfg_set;
-
-#define SIMIX_CHECK_HOST() xbt_assert0(surf_workstation_model->extension_public-> \
- get_state(SIMIX_host_self()->host)==SURF_CPU_ON,\
+#define SIMIX_CHECK_HOST() xbt_assert0(surf_workstation_model->extension.workstation. \
+ get_state(SIMIX_host_self()->host)==SURF_RESOURCE_ON,\
"Host failed, you cannot call this function.")
smx_host_t __SIMIX_host_create(const char *name, void *workstation, void *data);
void __SIMIX_cond_wait(smx_cond_t cond);
void __SIMIX_cond_display_actions(smx_cond_t cond);
void __SIMIX_action_display_conditions(smx_action_t action);
-void __SIMIX_create_maestro_process(void);
/******************************** Context *************************************/
-int SIMIX_context_create_maestro(smx_process_t *process);
-
-int SIMIX_context_new(smx_process_t *process, xbt_main_func_t code);
-
-void SIMIX_context_kill(smx_process_t process);
-
-void SIMIX_context_start(smx_process_t process);
-
-void SIMIX_context_yield(void);
-
-void SIMIX_context_schedule(smx_process_t process);
-
-void SIMIX_context_empty_trash(void);
-
-void SIMIX_context_stop(int exit_code);
-
-void SIMIX_context_free(smx_process_t process);
-
void SIMIX_context_mod_init(void);
void SIMIX_context_mod_exit(void);
+
+/* *********************** */
+/* Context type definition */
+/* *********************** */
+/* the following function pointers types describe the interface that all context
+ concepts must implement */
+
+/* each context type must contain this macro at its begining -- OOP in C :/ */
+#define SMX_CTX_BASE_T \
+ s_xbt_swag_hookup_t hookup; \
+ xbt_main_func_t code; \
+ int argc; \
+ char **argv; \
+ void_f_pvoid_t cleanup_func; \
+ void *cleanup_arg; \
+
+/* all other context types derive from this structure */
+typedef struct s_smx_context {
+ SMX_CTX_BASE_T;
+} s_smx_context_t;
+
+/* *********************** */
+/* factory type definition */
+/* *********************** */
+
+/* Each context implementation define its own context factory
+ * A context factory is responsable of the creation and manipulation of the
+ * execution context of all the simulated processes (and maestro) using the
+ * selected implementation.
+ *
+ * For example, the context switch based on java thread use the
+ * java implementation of the context and the java factory to build and control
+ * the contexts depending on this implementation.
+
+ * The following function pointer types describe the interface that any context
+ * factory should implement.
+ */
+
+/* function used to create a new context */
+typedef smx_context_t (*smx_pfn_context_factory_create_context_t)
+ (xbt_main_func_t, int, char**, void_f_pvoid_t, void*);
+
+/* this function finalize the specified context factory */
+typedef int (*smx_pfn_context_factory_finalize_t) (smx_context_factory_t*);
+
+/* function used to destroy the specified context */
+typedef void (*smx_pfn_context_free_t) (smx_context_t);
+
+/* function used to start the specified context */
+typedef void (*smx_pfn_context_start_t) (smx_context_t);
+
+/* function used to stop the current context */
+typedef void (*smx_pfn_context_stop_t) (smx_context_t);
+
+/* function used to suspend the current context */
+typedef void (*smx_pfn_context_suspend_t) (smx_context_t context);
+
+/* function used to resume the current context */
+typedef void (*smx_pfn_context_resume_t) (smx_context_t old_context,
+ smx_context_t new_context);
+
+/* interface of the context factories */
+typedef struct s_smx_context_factory {
+ smx_pfn_context_factory_create_context_t create_context;
+ smx_pfn_context_factory_finalize_t finalize;
+ smx_pfn_context_free_t free;
+ smx_pfn_context_start_t start;
+ smx_pfn_context_stop_t stop;
+ smx_pfn_context_suspend_t suspend;
+ smx_pfn_context_resume_t resume;
+ const char *name;
+} s_smx_context_factory_t;
+
+/* Selects a context factory associated with the name specified by the parameter name.
+ * If successful the function returns 0. Otherwise the function returns the error code.
+ */
+int SIMIX_context_select_factory(const char *name);
+
+/* Initializes a context factory from the name specified by the parameter name.
+ * If the factory cannot be found, an exception is raised.
+ */
+void SIMIX_context_init_factory_by_name(smx_context_factory_t * factory, const char *name);
+
+/* All factories init */
+void SIMIX_ctx_thread_factory_init(smx_context_factory_t * factory);
+
+void SIMIX_ctx_sysv_factory_init(smx_context_factory_t * factory);
+void SIMIX_ctx_lua_factory_init(smx_context_factory_t * factory);
+void SIMIX_ctx_lua_factory_loadfile(const char *file);
+
+
+void SIMIX_ctx_java_factory_init(smx_context_factory_t * factory);
+
+/* ****************************** */
+/* context manipulation functions */
+/* ****************************** */
+
+/* Scenario for the end of a context:
+ *
+ * CASE 1: death after end of the main function
+ * the context_wrapper, called internally by the context module, calls
+ * SIMIX_context_stop after user code stops, smx_context_stop calls user
+ * cleanup_func if any (in context settings), add current process to trashbin
+ * and yields back to maestro.
+ * From time to time, maestro calls SIMIX_context_empty_trash, which destroy
+ * all the process and context data structures, and frees the memory
+ *
+ * CASE 2: brutal death
+ * SIMIX_process_kill (from any process) set process->iwannadie = 1 and then
+ * schedules the process. Then the process is awaken in the middle of the
+ * SIMIX_process_yield function, and at the end of it, it checks that
+ * iwannadie == 1, and call SIMIX_context_stop(same than first case afterward)
+ */
+
+/**
+ * \brief creates a new context for a user level process
+ * \param code a main function
+ * \param argc the number of arguments of the main function
+ * \param argv the vector of arguments of the main function
+ * \param cleanup_func the function to call when the context stops
+ * \param cleanup_arg the argument of the cleanup_func function
+ */
+static inline smx_context_t SIMIX_context_new(xbt_main_func_t code, int argc,
+ char** argv,
+ void_f_pvoid_t cleanup_func,
+ void* cleanup_arg)
+{
+ return (*(simix_global->context_factory->create_context))
+ (code, argc, argv, cleanup_func, cleanup_arg);
+}
+
+/**
+ * \brief destroy a context
+ * \param context the context to destroy
+ * Argument must be stopped first -- runs in maestro context
+ */
+static inline void SIMIX_context_free(smx_context_t context)
+{
+ (*(simix_global->context_factory->free)) (context);
+}
+
+/**
+ * \brief prepares aa context to be run
+ * \param context the context to start
+ * It will however run effectively only when calling #SIMIX_process_schedule
+ */
+static inline void SIMIX_context_start(smx_context_t context)
+{
+ (*(simix_global->context_factory->start)) (context);
+}
+
+/**
+ * \brief stops the execution of a context
+ * \param context to stop
+ */
+static inline void SIMIX_context_stop(smx_context_t context)
+{
+ (*(simix_global->context_factory->stop)) (context);
+}
+
+/**
+ \brief resumes the execution of a context
+ \param old_context the actual context from which is resuming
+ \param new_context the context to resume
+ */
+static inline void SIMIX_context_resume(smx_context_t old_context,
+ smx_context_t new_context)
+{
+ (*(simix_global->context_factory->resume)) (old_context, new_context);
+}
+
+/**
+ \brief suspends a context and return the control back to the one which
+ scheduled it
+ \param context the context to be suspended (it must be the running one)
+ */
+static inline void SIMIX_context_suspend(smx_context_t context)
+{
+ (*(simix_global->context_factory->suspend)) (context);
+}
+
#endif
