1 /* 2 * Copyright 2017 Advanced Micro Devices, Inc. 3 * All Rights Reserved. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the "Software"), 7 * to deal in the Software without restriction, including without limitation 8 * on the rights to use, copy, modify, merge, publish, distribute, sub 9 * license, and/or sell copies of the Software, and to permit persons to whom 10 * the Software is furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice (including the next 13 * paragraph) shall be included in all copies or substantial portions of the 14 * Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL 19 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, 20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 22 * USE OR OTHER DEALINGS IN THE SOFTWARE. 23 * 24 */ 25 26 /** 27 * \file u_async_debug.h 28 * Provides a helper implementation of util_debug_callback which allows debug 29 * messages from non-application threads to be passed back to the application 30 * thread. 31 */ 32 33 #ifndef UTIL_ASYNC_DEBUG_H 34 #define UTIL_ASYNC_DEBUG_H 35 36 #include "pipe/p_state.h" 37 #include "util/u_debug.h" 38 #include "util/simple_mtx.h" 39 40 #ifdef __cplusplus 41 extern "C" { 42 #endif 43 44 struct util_debug_message { 45 unsigned *id; 46 enum util_debug_type type; 47 char *msg; 48 }; 49 50 struct util_async_debug_callback { 51 struct util_debug_callback base; 52 53 simple_mtx_t lock; 54 unsigned count; 55 unsigned max; 56 struct util_debug_message *messages; 57 }; 58 59 void 60 u_async_debug_init(struct util_async_debug_callback *adbg); 61 void 62 u_async_debug_cleanup(struct util_async_debug_callback *adbg); 63 64 void 65 _u_async_debug_drain(struct util_async_debug_callback *adbg, 66 struct util_debug_callback *dst); 67 68 static inline void u_async_debug_drain(struct util_async_debug_callback * adbg,struct util_debug_callback * dst)69 u_async_debug_drain(struct util_async_debug_callback *adbg, 70 struct util_debug_callback *dst) 71 { 72 /* Read the count without taking the lock to avoid atomics in the fast path. 73 * We'll re-read the count after taking the lock. */ 74 if (adbg->count) 75 _u_async_debug_drain(adbg, dst); 76 } 77 78 #ifdef __cplusplus 79 } 80 #endif 81 82 #endif /* UTIL_ASYNC_DEBUG_H */ 83