| /* |
| * |
| * Copyright 2015, Google Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| */ |
| |
| #ifndef GRPC_SUPPORT_TLS_H |
| #define GRPC_SUPPORT_TLS_H |
| |
| #include <grpc/support/port_platform.h> |
| |
| /* Thread local storage. |
| |
| A minimal wrapper that should be implementable across many compilers, |
| and implementable efficiently across most modern compilers. |
| |
| Thread locals have type gpr_intptr. |
| |
| Declaring a thread local variable 'foo': |
| GPR_TLS_DECL(foo); |
| Thread locals always have static scope. |
| |
| Initializing a thread local (must be done at library initialization |
| time): |
| gpr_tls_init(&foo); |
| |
| Destroying a thread local: |
| gpr_tls_destroy(&foo); |
| |
| Setting a thread local: |
| gpr_tls_set(&foo, new_value); |
| |
| Accessing a thread local: |
| current_value = gpr_tls_get(&foo, value); |
| |
| ALL functions here may be implemented as macros. */ |
| |
| #ifdef GPR_GCC_TLS |
| #include <grpc/support/tls_gcc.h> |
| #endif |
| |
| #ifdef GPR_MSVC_TLS |
| #include <grpc/support/tls_msvc.h> |
| #endif |
| |
| #ifdef GPR_PTHREAD_TLS |
| #include <grpc/support/tls_pthread.h> |
| #endif |
| |
| #endif |