X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/badae5b067e0b341051aa2eae2bf3afbc4311193..5c19d3d6403ded95f8675596aa250240b6f7e467:/src/xbt/xbt_sg_synchro.c diff --git a/src/xbt/xbt_sg_synchro.c b/src/xbt/xbt_sg_synchro.c deleted file mode 100644 index 927d139840..0000000000 --- a/src/xbt/xbt_sg_synchro.c +++ /dev/null @@ -1,235 +0,0 @@ -/* xbt_synchro -- Synchronization virtualized depending on whether we are */ -/* in simulation or real life (act on simulated processes) */ - -/* This is the simulation implementation, using simix. */ - -/* Copyright (c) 2007-2015. The SimGrid Team. - * All rights reserved. */ - -/* This program is free software; you can redistribute it and/or modify it - * under the terms of the license (GNU LGPL) which comes with this package. */ - -#include "xbt/ex.h" -#include "xbt/synchro_core.h" - -#include "simgrid/simix.h" /* used implementation */ -#include "../simix/smx_private.h" /* FIXME */ - -XBT_LOG_NEW_DEFAULT_SUBCATEGORY(xbt_sync, xbt, - "Synchronization mechanism"); - -/* the implementation would be cleaner (and faster) with ELF symbol aliasing */ - -typedef struct s_xbt_thread_ { - smx_process_t s_process; /* keep this first, gras_socket_im_the_server() does funky transtyping in sg_msg.c */ - char *name; - void_f_pvoid_t code; - void *userparam; - void *father_data; - /* stuff to allow other people to wait on me with xbt_thread_join */ - unsigned joinable:1, done:1; - xbt_cond_t cond; - xbt_mutex_t mutex; -} s_xbt_thread_t; - -static int xbt_thread_create_wrapper(int argc, char *argv[]) -{ - smx_process_t self = SIMIX_process_self(); - xbt_thread_t t = - (xbt_thread_t) SIMIX_process_self_get_data(self); - simcall_process_set_data(self, t->father_data); - t->code(t->userparam); - if (t->joinable) { - t->done = 1; - xbt_mutex_acquire(t->mutex); - xbt_cond_broadcast(t->cond); - xbt_mutex_release(t->mutex); - } else { - xbt_mutex_destroy(t->mutex); - xbt_cond_destroy(t->cond); - free(t->name); - free(t); - } - return 0; -} - -xbt_thread_t xbt_thread_create(const char *name, void_f_pvoid_t code, - void *param, int joinable) -{ - xbt_thread_t res = xbt_new0(s_xbt_thread_t, 1); - res->name = xbt_strdup(name); - res->userparam = param; - res->code = code; - res->father_data = SIMIX_process_self_get_data(SIMIX_process_self()); - /* char*name = bprintf("%s#%p",SIMIX_process_self_get_name(), param); */ - res->s_process = simcall_process_create(name, - xbt_thread_create_wrapper, res, - SIMIX_host_self_get_name(), -1.0, 0, NULL, - /*props */ NULL,0); - res->joinable = joinable; - res->done = 0; - res->cond = xbt_cond_init(); - res->mutex = xbt_mutex_init(); - // free(name); - return res; -} - -const char *xbt_thread_name(xbt_thread_t t) -{ - return t->name; -} - -const char *xbt_thread_self_name(void) -{ - xbt_thread_t me = xbt_thread_self(); - return me ? me->name : "maestro"; -} - - -void xbt_thread_join(xbt_thread_t thread) -{ - xbt_mutex_acquire(thread->mutex); - xbt_assert(thread->joinable, - "Cannot join on %p: wasn't created joinable", thread); - if (!thread->done) { - xbt_cond_wait(thread->cond, thread->mutex); - xbt_mutex_release(thread->mutex); - } - - xbt_mutex_destroy(thread->mutex); - xbt_cond_destroy(thread->cond); - free(thread->name); - free(thread); - -} - -void xbt_thread_cancel(xbt_thread_t thread) -{ - simcall_process_kill(thread->s_process); - free(thread->name); - free(thread); -} - -void xbt_thread_exit() -{ - simcall_process_kill(SIMIX_process_self()); -} - -xbt_thread_t xbt_thread_self(void) -{ - return SIMIX_process_self_get_data(SIMIX_process_self()); -} - -void xbt_thread_yield(void) -{ - SIMIX_process_yield(SIMIX_process_self()); -} - -/****** mutex related functions ******/ -struct s_xbt_mutex_ { - s_smx_mutex_t mutex; -}; - -xbt_mutex_t xbt_mutex_init(void) -{ - return (xbt_mutex_t) simcall_mutex_init(); -} - -void xbt_mutex_acquire(xbt_mutex_t mutex) -{ - simcall_mutex_lock((smx_mutex_t) mutex); -} - -int xbt_mutex_try_acquire(xbt_mutex_t mutex) -{ - return simcall_mutex_trylock((smx_mutex_t) mutex); -} - -void xbt_mutex_release(xbt_mutex_t mutex) -{ - simcall_mutex_unlock((smx_mutex_t) mutex); -} - -void xbt_mutex_destroy(xbt_mutex_t mutex) -{ - simcall_mutex_destroy((smx_mutex_t) mutex); -} - -/***** condition related functions *****/ -struct s_xbt_cond_ { - s_smx_cond_t cond; -}; - -xbt_cond_t xbt_cond_init(void) -{ - return (xbt_cond_t) simcall_cond_init(); -} - -void xbt_cond_wait(xbt_cond_t cond, xbt_mutex_t mutex) -{ - simcall_cond_wait((smx_cond_t) cond, (smx_mutex_t) mutex); -} - -void xbt_cond_timedwait(xbt_cond_t cond, xbt_mutex_t mutex, double delay) -{ - simcall_cond_wait_timeout((smx_cond_t) cond, (smx_mutex_t) mutex, delay); -} - -void xbt_cond_signal(xbt_cond_t cond) -{ - simcall_cond_signal((smx_cond_t) cond); -} - -void xbt_cond_broadcast(xbt_cond_t cond) -{ - simcall_cond_broadcast((smx_cond_t) cond); -} - -void xbt_cond_destroy(xbt_cond_t cond) -{ - simcall_cond_destroy((smx_cond_t) cond); -} - -/***** barrier related functions *****/ -typedef struct s_xbt_bar_ { - xbt_mutex_t mutex; - xbt_cond_t cond; - unsigned int arrived_processes; - unsigned int expected_processes; -} s_xbt_bar_; - -xbt_bar_t xbt_barrier_init(unsigned int count) -{ - xbt_bar_t bar = xbt_new0(s_xbt_bar_, 1); - bar->expected_processes = count; - bar->arrived_processes = 0; - bar->mutex = xbt_mutex_init(); - bar->cond = xbt_cond_init(); - return bar; -} - - -int xbt_barrier_wait(xbt_bar_t bar) -{ - int ret=0; - xbt_mutex_acquire(bar->mutex); - if (++bar->arrived_processes == bar->expected_processes) { - xbt_cond_broadcast(bar->cond); - xbt_mutex_release(bar->mutex); - ret=XBT_BARRIER_SERIAL_PROCESS; - bar->arrived_processes = 0; - } else { - xbt_cond_wait(bar->cond, bar->mutex); - xbt_mutex_release(bar->mutex); - } - - return ret; -} - -void xbt_barrier_destroy(xbt_bar_t bar) -{ - xbt_mutex_destroy(bar->mutex); - xbt_cond_destroy(bar->cond); - xbt_free(bar); -} -