-#include <stdio.h>\r
-#include <stdlib.h>\r
-#include <string.h>\r
-#include <errno.h>\r
-\r
-\r
-#include "xbt/xbt_os_thread.h"\r
-#include "xbt.h"\r
-#include "xbt/log.h"\r
-XBT_LOG_NEW_DEFAULT_CATEGORY(sem_sched,"Messages specific for this sem example");\r
-\r
-#ifndef ENOBUFS\r
-#define ENOBUFS 1024\r
-#endif\r
-\r
-#define CTX_MAX ((unsigned int)1000)\r
-\r
-\r
-#define MAX_ARG 30\r
-#define MAX_ARGS 10\r
-\r
-typedef int (*pfn_func_t)(int, char**);\r
-\r
-static int\r
-__next_ctx_ID = 0;\r
-\r
-typedef struct s_job\r
-{\r
- pfn_func_t func;\r
- int argc;\r
- char** argv;\r
-}s_job_t,* job_t;\r
-\r
-\r
-job_t\r
-job_new(pfn_func_t func, int argc, char** argv);\r
-\r
-int\r
-job_execute(job_t job);\r
-\r
-int\r
-job_free(job_t* ref);\r
-\r
-/* an entry of the table of threads */\r
-typedef struct s_ctx\r
-{\r
- xbt_os_sem_t begin;\r
- xbt_os_sem_t end;\r
- int failure;\r
- job_t job;\r
- xbt_os_thread_t imp;\r
- int index;\r
-}s_ctx_t,* ctx_t;\r
-\r
-typedef struct s_shed\r
-{\r
- ctx_t* ctxs;\r
- int size;\r
- int capacity;\r
-}s_sched_t,* sched_t;\r
-\r
-\r
-void \r
-schedule(ctx_t c);\r
-void \r
-unschedule(ctx_t c);\r
-\r
-void*\r
-ctx_function(void* param);\r
-\r
-ctx_t \r
-ctx_new(job_t job);\r
-\r
-int \r
-ctx_free(ctx_t* ref);\r
-\r
-sched_t\r
-sched_new(int size);\r
-\r
-int\r
-sched_add_job(sched_t sched, job_t job);\r
-\r
-int\r
-sched_init(sched_t sched);\r
-\r
-int\r
-sched_schedule(sched_t sched);\r
-\r
-int\r
-sched_clean(sched_t sched);\r
-\r
-int\r
-sched_free(sched_t* ref);\r
-\r
-int\r
-job(int argc, char* argv[]);\r
-\r
-int\r
-main(int argc, char* argv[])\r
-{\r
- sched_t sched;\r
- int i, size;\r
- char** __argv;\r
- char arg[MAX_ARG] = {0};\r
- \r
- \r
- xbt_init(&argc, argv);\r
- \r
- if(argc != 2) \r
- {\r
- INFO1("Usage: %s job count",argv[0]);\r
- exit(EXIT_FAILURE);\r
- } \r
- \r
- \r
- size = atoi(argv[1]);\r
- \r
- /* create a new scheduler */\r
- sched = sched_new(size);\r
- \r
- if(!sched)\r
- {\r
- INFO1("sched_new() failed : errno %d",errno);\r
- xbt_exit();\r
- exit(EXIT_FAILURE);\r
- }\r
- \r
- __argv = (char**)calloc(MAX_ARGS,sizeof(char*));\r
- \r
- for(i = 0; i < MAX_ARGS; i++)\r
- {\r
- sprintf(arg,"arg_%d",i);\r
- __argv[i] = strdup(arg);\r
- memset(arg,0,MAX_ARG);\r
- \r
- }\r
- \r
- for(i = 0; i < size; i++)\r
- sched_add_job(sched,job_new(job,(i < MAX_ARGS) ? i : MAX_ARGS,__argv));\r
- \r
- /* initialize the scheduler */\r
- if(sched_init(sched) < 0)\r
- {\r
- sched_free(&sched);\r
- INFO1("sched_init() failed : errno %d\n",errno);\r
- xbt_exit();\r
- exit(EXIT_FAILURE);\r
- }\r
- \r
- /* schedule the jobs */\r
- if(sched_schedule(sched) < 0)\r
- {\r
- sched_free(&sched);\r
- INFO1("sched_init() failed : errno %d",errno);\r
- xbt_exit();\r
- exit(EXIT_FAILURE);\r
- }\r
- \r
- /* cleanup */\r
- if(sched_clean(sched) < 0)\r
- {\r
- sched_free(&sched);\r
- INFO1("sched_init() failed : errno %d",errno);\r
- xbt_exit();\r
- exit(EXIT_FAILURE);\r
- }\r
- \r
- /* destroy the scheduler */\r
- sched_free(&sched);\r
- \r
- INFO1("sem_sched terminated with exit code %d (success)",EXIT_SUCCESS);\r
-\r
- xbt_exit();\r
- \r
- return EXIT_SUCCESS;\r
- \r
-}\r
-\r
-void*\r
-ctx_function(void* param)\r
-{\r
- int i = 0;\r
- int exit_code = 1;\r
- ctx_t ctx = (ctx_t)param;\r
- \r
- INFO1("Hello i'm the owner of the context %d, i'm waiting for starting",ctx->index);\r
- \r
- unschedule(ctx);\r
- \r
- if(ctx->failure)\r
- {\r
- INFO1("0ups the scheduler initialization failed bye {%d}.",ctx->index);\r
- xbt_os_thread_exit(&exit_code);\r
- }\r
- \r
- INFO1("I'm the owner of the context %d : I'm started",ctx->index);\r
- INFO0("Wait a minute, I do my job");\r
- \r
- /* do its job */\r
- exit_code = job_execute(ctx->job);\r
- \r
- INFO1("Have finished my job, bye {%d}\n",ctx->index);\r
- \r
- xbt_os_sem_release(ctx->end);\r
- \r
- xbt_os_thread_exit(&exit_code);\r
-}\r
-\r
-void schedule(ctx_t c) \r
-{\r
- xbt_os_sem_release(c->begin); /* allow C to go */\r
- xbt_os_sem_acquire(c->end); /* wait C's end */\r
-}\r
-\r
-void unschedule(ctx_t c) \r
-{\r
- xbt_os_sem_release(c->end); /* I'm done, dude */\r
- xbt_os_sem_acquire(c->begin); /* can I start again? */\r
-}\r
-\r
-ctx_t \r
-ctx_new(job_t job)\r
-{\r
- ctx_t ctx = (ctx_t)calloc(1,sizeof(s_ctx_t));\r
- ctx->index = ++__next_ctx_ID;\r
- ctx->begin = xbt_os_sem_init(0);\r
- ctx->end = xbt_os_sem_init(0);\r
- ctx->failure = 0;\r
- ctx->job = job;\r
- \r
- return ctx;\r
-}\r
-\r
-int \r
-ctx_free(ctx_t* ref)\r
-{\r
- ctx_t ctx;\r
- if(!(*ref))\r
- return EINVAL;\r
- \r
- ctx = *ref;\r
- \r
- xbt_os_sem_destroy(ctx->begin);\r
- xbt_os_sem_destroy(ctx->end);\r
- job_free(&(ctx->job));\r
- free(ctx);\r
- *ref = NULL;\r
- \r
- return 0;\r
-}\r
-\r
-sched_t\r
-sched_new(int size)\r
-{\r
- sched_t sched;\r
- \r
- if(size <= 0)\r
- {\r
- errno = EINVAL;\r
- return NULL;\r
- }\r
- \r
- sched = (sched_t)calloc(1,sizeof(s_sched_t));\r
- \r
- if(!sched)\r
- {\r
- errno = ENOMEM;\r
- return NULL;\r
- }\r
- \r
- sched->ctxs = (ctx_t*)calloc(size,sizeof(ctx_t));\r
- \r
- if(!(sched->ctxs))\r
- {\r
- errno = ENOMEM;\r
- free(sched);\r
- return NULL;\r
- }\r
- \r
- sched->size = 0;\r
- sched->capacity = size;\r
- \r
- return sched;\r
-}\r
-\r
-int\r
-sched_add_job(sched_t sched, job_t job)\r
-{\r
- if(!sched || !job)\r
- return EINVAL;\r
- \r
- if(sched->capacity < sched->size)\r
- return ENOBUFS;\r
- \r
- sched->ctxs[(sched->size)++] = ctx_new(job);\r
- \r
- return 0;\r
-}\r
-\r
-int\r
-sched_init(sched_t sched)\r
-{\r
- int i,j;\r
- int success = 1;\r
- \r
- if(!sched)\r
- return EINVAL;\r
- \r
- for(i = 0; i < sched->size; i++)\r
- { \r
- sched->ctxs[i]->imp = xbt_os_thread_create("thread",ctx_function,(void*)sched->ctxs[i]);\r
- \r
- xbt_os_sem_acquire(sched->ctxs[i]->end);\r
- }\r
- \r
- if(!success)\r
- {\r
- for(j = 0; j < i; j++)\r
- {\r
- sched->ctxs[j]->failure = 1;\r
- xbt_os_sem_release(sched->ctxs[j]->begin);\r
- }\r
- \r
- for(j = 0; j < i; j++)\r
- {\r
- xbt_os_thread_join(sched->ctxs[j]->imp,0);\r
- \r
- ctx_free(&(sched->ctxs[j]));\r
- }\r
- \r
- return -1;\r
- \r
- }\r
- \r
- return 0;\r
-}\r
-\r
-int\r
-sched_schedule(sched_t sched)\r
-{\r
- int i;\r
- \r
- if(!sched)\r
- return EINVAL;\r
- \r
- for(i = 0; i < sched->size; i++)\r
- schedule(sched->ctxs[i]);\r
- \r
- return 0;\r
-}\r
-\r
-int\r
-sched_clean(sched_t sched)\r
-{\r
- int i;\r
- \r
- if(!sched)\r
- return EINVAL;\r
- \r
- for(i = 0; i < sched->size; i++)\r
- {\r
- xbt_os_thread_join(sched->ctxs[i]->imp,NULL);\r
- \r
- ctx_free(&(sched->ctxs[i]));\r
- }\r
- \r
- return 0;\r
-}\r
-\r
-int\r
-sched_free(sched_t* ref)\r
-{\r
- if(*ref)\r
- return EINVAL;\r
- \r
- free(((sched_t)(*ref))->ctxs);\r
- \r
- *ref = NULL;\r
- \r
- return 0;\r
-}\r
-\r
-\r
-int\r
-job(int argc, char** argv)\r
-{\r
- int i = 0;\r
- \r
- INFO0("I'm the job : I'm going to print all the args of my commande line");\r
- \r
- INFO1("-- Arguments (%d):",argc);\r
- \r
- for(i = 0; i < argc; i++)\r
- INFO2(" ---- [%i] %s",i,argv[i]);\r
- \r
- return 0;\r
-}\r
-\r
-job_t\r
-job_new(pfn_func_t func, int argc, char** argv)\r
-{\r
- job_t job;\r
- int i;\r
- \r
- /* todo check the parameters */\r
- job = (job_t)calloc(1,sizeof(s_job_t));\r
- \r
- if(!job)\r
- {\r
- errno = ENOMEM;\r
- return NULL;\r
- }\r
- \r
- job->argv = (char**)calloc(argc,sizeof(char*));\r
- \r
- if(!(job->argv))\r
- {\r
- free(job);\r
- errno = ENOMEM;\r
- return NULL;\r
- }\r
- \r
- for(i = 0; i < argc; i++)\r
- job->argv[i] = strdup(argv[i]);\r
- \r
- job->func = func; \r
- job->argc = argc;\r
- \r
- return job;\r
-}\r
-\r
-int\r
-job_execute(job_t job)\r
-{\r
- if(!job)\r
- return EINVAL;\r
- \r
- return (*(job->func))(job->argc, job->argv);\r
-}\r
-\r
-int\r
-job_free(job_t* ref)\r
-{\r
- job_t job;\r
- int i;\r
- \r
- if(!(*ref))\r
- return EINVAL;\r
- \r
- job = *ref;\r
- \r
- for(i = 0; i < job->argc; i++)\r
- free(job->argv[i]);\r
- \r
- free(job->argv);\r
- free(*ref);\r
- *ref = NULL;\r
- \r
- return 0;\r
-}\r
-\r
-\r
-\r
+/* Copyright (c) 2007, 2008. 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 <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+
+#include "xbt/xbt_os_thread.h"
+#include "xbt.h"
+#include "xbt/log.h"
+XBT_LOG_NEW_DEFAULT_CATEGORY(sem_sched,
+ "Messages specific for this sem example");
+
+#ifndef ENOBUFS
+#define ENOBUFS 1024
+#endif
+
+#define CTX_MAX ((unsigned int)1000)
+
+
+#define MAX_ARG 30
+#define MAX_ARGS 10
+
+typedef int (*pfn_func_t) (int, char **);
+
+static int
+ __next_ctx_ID = 0;
+
+typedef struct s_job {
+ pfn_func_t func;
+ int argc;
+ char **argv;
+} s_job_t, *job_t;
+
+
+job_t job_new(pfn_func_t func, int argc, char **argv);
+
+int job_execute(job_t job);
+
+int job_free(job_t * ref);
+
+/* an entry of the table of threads */
+typedef struct s_ctx {
+ xbt_os_sem_t begin;
+ xbt_os_sem_t end;
+ int failure;
+ job_t job;
+ xbt_os_thread_t imp;
+ int index;
+} s_ctx_t, *ctx_t;
+
+typedef struct s_shed {
+ ctx_t *ctxs;
+ int size;
+ int capacity;
+} s_sched_t, *sched_t;
+
+
+void schedule(ctx_t c);
+void unschedule(ctx_t c);
+
+void *ctx_function(void *param);
+
+ctx_t ctx_new(job_t job);
+
+int ctx_free(ctx_t * ref);
+
+sched_t sched_new(int size);
+
+int sched_add_job(sched_t sched, job_t job);
+
+int sched_init(sched_t sched);
+
+int sched_schedule(sched_t sched);
+
+int sched_clean(sched_t sched);
+
+int sched_free(sched_t * ref);
+
+int job(int argc, char *argv[]);
+
+int main(int argc, char *argv[])
+{
+ sched_t sched;
+ int i, size;
+ char **__argv;
+ char arg[MAX_ARG] = { 0 };
+
+
+ xbt_init(&argc, argv);
+
+ if (argc != 2) {
+ INFO1("Usage: %s job count", argv[0]);
+ exit(EXIT_FAILURE);
+ }
+
+
+ size = atoi(argv[1]);
+
+ /* create a new scheduler */
+ sched = sched_new(size);
+
+ if (!sched) {
+ INFO1("sched_new() failed : errno %d", errno);
+ exit(EXIT_FAILURE);
+ }
+
+ __argv = xbt_new0(char *, MAX_ARGS);
+
+ for (i = 0; i < MAX_ARGS; i++) {
+ sprintf(arg, "arg_%d", i);
+ __argv[i] = strdup(arg);
+ memset(arg, 0, MAX_ARG);
+
+ }
+
+ for (i = 0; i < size; i++)
+ sched_add_job(sched,
+ job_new(job, (i < MAX_ARGS) ? i : MAX_ARGS, __argv));
+
+ /* initialize the scheduler */
+ if (sched_init(sched) < 0) {
+ sched_free(&sched);
+ INFO1("sched_init() failed : errno %d\n", errno);
+ exit(EXIT_FAILURE);
+ }
+
+ /* schedule the jobs */
+ if (sched_schedule(sched) < 0) {
+ sched_free(&sched);
+ INFO1("sched_init() failed : errno %d", errno);
+ exit(EXIT_FAILURE);
+ }
+
+ /* cleanup */
+ if (sched_clean(sched) < 0) {
+ sched_free(&sched);
+ INFO1("sched_init() failed : errno %d", errno);
+ exit(EXIT_FAILURE);
+ }
+
+ /* destroy the scheduler */
+ sched_free(&sched);
+
+ INFO1("sem_sched terminated with exit code %d (success)", EXIT_SUCCESS);
+
+ return EXIT_SUCCESS;
+
+}
+
+void *ctx_function(void *param)
+{
+ int i = 0;
+ int exit_code = 1;
+ ctx_t ctx = (ctx_t) param;
+
+ INFO1("Hello i'm the owner of the context %d, i'm waiting for starting",
+ ctx->index);
+
+ unschedule(ctx);
+
+ if (ctx->failure) {
+ INFO1("0ups the scheduler initialization failed bye {%d}.",
+ ctx->index);
+ xbt_os_thread_exit(&exit_code);
+ }
+
+ INFO1("I'm the owner of the context %d : I'm started", ctx->index);
+ INFO0("Wait a minute, I do my job");
+
+ /* do its job */
+ exit_code = job_execute(ctx->job);
+
+ INFO1("Have finished my job, bye {%d}\n", ctx->index);
+
+ xbt_os_sem_release(ctx->end);
+
+ xbt_os_thread_exit(&exit_code);
+}
+
+void schedule(ctx_t c)
+{
+ xbt_os_sem_release(c->begin); /* allow C to go */
+ xbt_os_sem_acquire(c->end); /* wait C's end */
+}
+
+void unschedule(ctx_t c)
+{
+ xbt_os_sem_release(c->end); /* I'm done, dude */
+ xbt_os_sem_acquire(c->begin); /* can I start again? */
+}
+
+ctx_t ctx_new(job_t job)
+{
+ ctx_t ctx = xbt_new0(s_ctx_t, 1);
+ ctx->index = ++__next_ctx_ID;
+ ctx->begin = xbt_os_sem_init(0);
+ ctx->end = xbt_os_sem_init(0);
+ ctx->failure = 0;
+ ctx->job = job;
+
+ return ctx;
+}
+
+int ctx_free(ctx_t * ref)
+{
+ ctx_t ctx;
+ if (!(*ref))
+ return EINVAL;
+
+ ctx = *ref;
+
+ xbt_os_sem_destroy(ctx->begin);
+ xbt_os_sem_destroy(ctx->end);
+ job_free(&(ctx->job));
+ free(ctx);
+ *ref = NULL;
+
+ return 0;
+}
+
+sched_t sched_new(int size)
+{
+ sched_t sched;
+
+ if (size <= 0) {
+ errno = EINVAL;
+ return NULL;
+ }
+
+ sched = xbt_new0(s_sched_t, 1);
+
+ if (!sched) {
+ errno = ENOMEM;
+ return NULL;
+ }
+
+ sched->ctxs = xbt_new0(ctx_t, size);
+
+ if (!(sched->ctxs)) {
+ errno = ENOMEM;
+ free(sched);
+ return NULL;
+ }
+
+ sched->size = 0;
+ sched->capacity = size;
+
+ return sched;
+}
+
+int sched_add_job(sched_t sched, job_t job)
+{
+ if (!sched || !job)
+ return EINVAL;
+
+ if (sched->capacity < sched->size)
+ return ENOBUFS;
+
+ sched->ctxs[(sched->size)++] = ctx_new(job);
+
+ return 0;
+}
+
+int sched_init(sched_t sched)
+{
+ int i, j;
+ int success = 1;
+
+ if (!sched)
+ return EINVAL;
+
+ for (i = 0; i < sched->size; i++) {
+ sched->ctxs[i]->imp =
+ xbt_os_thread_create("thread", ctx_function,
+ (void *) sched->ctxs[i]);
+
+ xbt_os_sem_acquire(sched->ctxs[i]->end);
+ }
+
+ if (!success) {
+ for (j = 0; j < i; j++) {
+ sched->ctxs[j]->failure = 1;
+ xbt_os_sem_release(sched->ctxs[j]->begin);
+ }
+
+ for (j = 0; j < i; j++) {
+ xbt_os_thread_join(sched->ctxs[j]->imp, 0);
+
+ ctx_free(&(sched->ctxs[j]));
+ }
+
+ return -1;
+
+ }
+
+ return 0;
+}
+
+int sched_schedule(sched_t sched)
+{
+ int i;
+
+ if (!sched)
+ return EINVAL;
+
+ for (i = 0; i < sched->size; i++)
+ schedule(sched->ctxs[i]);
+
+ return 0;
+}
+
+int sched_clean(sched_t sched)
+{
+ int i;
+
+ if (!sched)
+ return EINVAL;
+
+ for (i = 0; i < sched->size; i++) {
+ xbt_os_thread_join(sched->ctxs[i]->imp, NULL);
+
+ ctx_free(&(sched->ctxs[i]));
+ }
+
+ return 0;
+}
+
+int sched_free(sched_t * ref)
+{
+ if (*ref)
+ return EINVAL;
+
+ free(((sched_t) (*ref))->ctxs);
+
+ *ref = NULL;
+
+ return 0;
+}
+
+
+int job(int argc, char **argv)
+{
+ int i = 0;
+
+ INFO0
+ ("I'm the job : I'm going to print all the args of my commande line");
+
+ INFO1("-- Arguments (%d):", argc);
+
+ for (i = 0; i < argc; i++)
+ INFO2(" ---- [%i] %s", i, argv[i]);
+
+ return 0;
+}
+
+job_t job_new(pfn_func_t func, int argc, char **argv)
+{
+ job_t job;
+ int i;
+
+ /* todo check the parameters */
+ job = xbt_new0(s_job_t, 1);
+
+ if (!job) {
+ errno = ENOMEM;
+ return NULL;
+ }
+
+ job->argv = xbt_new0(char *, argc);
+
+ if (!(job->argv)) {
+ free(job);
+ errno = ENOMEM;
+ return NULL;
+ }
+
+ for (i = 0; i < argc; i++)
+ job->argv[i] = strdup(argv[i]);
+
+ job->func = func;
+ job->argc = argc;
+
+ return job;
+}
+
+int job_execute(job_t job)
+{
+ if (!job)
+ return EINVAL;
+
+ return (*(job->func)) (job->argc, job->argv);
+}
+
+int job_free(job_t * ref)
+{
+ job_t job;
+ int i;
+
+ if (!(*ref))
+ return EINVAL;
+
+ job = *ref;
+
+ for (i = 0; i < job->argc; i++)
+ free(job->argv[i]);
+
+ free(job->argv);
+ free(*ref);
+ *ref = NULL;
+
+ return 0;
+}
