/*
* Empire - A multi-player, client/server Internet based war game.
- * Copyright (C) 1986-2007, Dave Pare, Jeff Bailey, Thomas Ruschak,
+ * Copyright (C) 1986-2008, Dave Pare, Jeff Bailey, Thomas Ruschak,
* Ken Stevens, Steve McClure
*
* This program is free software; you can redistribute it and/or modify
* ---
*
* pthread.c: Interface from Empire threads to POSIX threads
- *
+ *
* Known contributors to this file:
* Sasha Mikheev
* Steve McClure, 1998
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
-#if !defined(_WIN32)
#include <sys/time.h>
#include <unistd.h>
-#endif
#include "misc.h"
#include "empthread.h"
pthread_t id; /* thread id */
};
-struct empth_sem_t {
- pthread_mutex_t mtx_update; /* use it to update count */
- int count;
- char name[80];
- pthread_mutex_t mtx_sem;
- pthread_cond_t cnd_sem;
-};
-
struct empth_rwlock_t {
char *name;
pthread_rwlock_t lock;
}
-/*
- * prio can be used for setting scheeduling policy but...
- * it seems to be optional in POSIX threads and Solaris
- * for example just ignores it.
- * More then that priority is not needed even in lwp threads.
- */
empth_t *
-empth_create(int prio, void (*entry)(void *), int size, int flags,
+empth_create(void (*entry)(void *), int size, int flags,
char *name, void *ud)
{
pthread_t t;
return pthread_getspecific(ctx_key);
}
+char *
+empth_name(empth_t *thread)
+{
+ return thread->name;
+}
+
+void
+empth_set_name(empth_t *thread, char *name)
+{
+ if (thread->name)
+ free(thread->name);
+ thread->name = strdup(name);
+}
+
void
empth_exit(void)
{
}
}
-empth_sem_t *
-empth_sem_create(char *name, int cnt)
-{
- empth_sem_t *sm;
-
- sm = malloc(sizeof(empth_sem_t));
- if (!sm) {
- logerror("out of memory at %s:%d", __FILE__, __LINE__);
- return NULL;
- }
- strncpy(sm->name, name, sizeof(sm->name) - 1);
- sm->count = cnt;
- pthread_mutex_init(&sm->mtx_update, NULL);
- pthread_mutex_init(&sm->mtx_sem, NULL);
- pthread_cond_init(&sm->cnd_sem, NULL);
- return sm;
-}
-
-void
-empth_sem_signal(empth_sem_t *sm)
-{
- empth_status("signal on semaphore %s:%d", sm->name, sm->count);
- pthread_mutex_lock(&sm->mtx_update);
- if (sm->count++ < 0) {
- pthread_mutex_unlock(&sm->mtx_update);
- pthread_mutex_lock(&sm->mtx_sem);
- pthread_cond_signal(&sm->cnd_sem);
- pthread_mutex_unlock(&sm->mtx_sem);
- } else
- pthread_mutex_unlock(&sm->mtx_update);
-}
-
-void
-empth_sem_wait(empth_sem_t *sm)
-{
- empth_status("wait on semaphore %s:%d", sm->name, sm->count);
- pthread_mutex_lock(&sm->mtx_update);
- if (--sm->count < 0) {
- pthread_mutex_unlock(&sm->mtx_update);
- empth_status("blocking");
- pthread_mutex_unlock(&mtx_ctxsw);
- pthread_mutex_lock(&sm->mtx_sem);
- pthread_cond_wait(&sm->cnd_sem, &sm->mtx_sem);
- empth_status("waking up");
- pthread_mutex_unlock(&sm->mtx_sem);
- pthread_mutex_lock(&mtx_ctxsw);
- empth_restorectx();
- } else
- pthread_mutex_unlock(&sm->mtx_update);
-}
-
empth_rwlock_t *
empth_rwlock_create(char *name)
{