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8e06e945b6
Change the function names to add _once to the tls_create & tls_destroy to make this obvious. Jeremy.
122 lines
3.1 KiB
C
122 lines
3.1 KiB
C
/*
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Unix SMB/CIFS implementation.
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SMB client library implementation (thread interface functions).
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Copyright (C) Jeremy Allison, 2009.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* This code is based in the ideas in openssl
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* but somewhat simpler and expended to include
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* thread local storage.
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*/
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#include "includes.h"
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/*********************************************************
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Functions to vector the locking primitives used internally
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by libsmbclient.
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*********************************************************/
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const struct smb_thread_functions *global_tfp;
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/*********************************************************
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Dynamic lock array.
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*********************************************************/
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void **global_lock_array;
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/*********************************************************
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Function to set the locking primitives used by libsmbclient.
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*********************************************************/
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int smb_thread_set_functions(const struct smb_thread_functions *tf)
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{
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int i;
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global_tfp = tf;
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#if defined(PARANOID_MALLOC_CHECKER)
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#ifdef malloc
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#undef malloc
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#endif
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#endif
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/* Here we initialize any static locks we're using. */
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global_lock_array = (void **)malloc(sizeof(void *) *NUM_GLOBAL_LOCKS);
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#if defined(PARANOID_MALLOC_CHECKER)
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#define malloc(s) __ERROR_DONT_USE_MALLOC_DIRECTLY
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#endif
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if (global_lock_array == NULL) {
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return ENOMEM;
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}
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for (i = 0; i < NUM_GLOBAL_LOCKS; i++) {
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char *name = NULL;
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if (asprintf(&name, "global_lock_%d", i) == -1) {
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SAFE_FREE(global_lock_array);
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return ENOMEM;
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}
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if (global_tfp->create_mutex(name,
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&global_lock_array[i],
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__location__)) {
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smb_panic("smb_thread_set_functions: create mutexes failed");
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}
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SAFE_FREE(name);
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}
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return 0;
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}
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#if 0
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/* Test. - pthread implementations. */
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#include <pthread.h>
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#ifdef malloc
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#undef malloc
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#endif
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SMB_THREADS_DEF_PTHREAD_IMPLEMENTATION(tf);
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void *pkey = NULL;
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/* Test function. */
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int test_threads(void)
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{
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int ret;
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void *plock = NULL;
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smb_thread_set_functions(&tf);
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if ((ret = SMB_THREAD_CREATE_TLS_ONCE("test_tls", pkey)) != 0) {
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printf("Create tls once error: %d\n", ret);
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}
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if ((ret = SMB_THREAD_CREATE_MUTEX("test", plock)) != 0) {
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printf("Create lock error: %d\n", ret);
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}
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if ((ret = SMB_THREAD_LOCK(plock, SMB_THREAD_LOCK)) != 0) {
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printf("lock error: %d\n", ret);
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}
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if ((SMB_THREAD_LOCK(plock, SMB_THREAD_UNLOCK)) != 0) {
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printf("unlock error: %d\n", ret);
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}
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SMB_THREAD_DESTROY_MUTEX(plock);
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SMB_THREAD_DESTROY_TLS_ONCE(pkey);
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return 0;
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}
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#endif
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