| 1 | /* |
| 2 | * Copyright (C) 2010 Nils Carlson |
| 3 | * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| 4 | * |
| 5 | * This library is free software; you can redistribute it and/or |
| 6 | * modify it under the terms of the GNU Lesser General Public |
| 7 | * License as published by the Free Software Foundation; either |
| 8 | * version 2.1 of the License, or (at your option) any later version. |
| 9 | * |
| 10 | * This library is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | * Lesser General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU Lesser General Public |
| 16 | * License along with this library; if not, write to the Free Software |
| 17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 18 | */ |
| 19 | |
| 20 | #include <stdio.h> |
| 21 | #include <unistd.h> |
| 22 | #include <sys/mman.h> |
| 23 | #include <stdarg.h> |
| 24 | #include <sys/types.h> |
| 25 | #include <sys/stat.h> |
| 26 | #include <fcntl.h> |
| 27 | #include <signal.h> |
| 28 | #include <pthread.h> |
| 29 | |
| 30 | #include <ust/marker.h> |
| 31 | #include "usterr.h" |
| 32 | |
| 33 | #define TRACEPOINT_CREATE_PROBES |
| 34 | #include "tp.h" |
| 35 | |
| 36 | struct hello_trace_struct { |
| 37 | char *message; |
| 38 | }; |
| 39 | |
| 40 | struct hello_trace_struct hello_struct = { |
| 41 | .message = "ehlo\n", |
| 42 | }; |
| 43 | |
| 44 | void tptest_probe(void *data, int anint) |
| 45 | { |
| 46 | struct hello_trace_struct *hello; |
| 47 | char message[30]; |
| 48 | hello = (struct hello_trace_struct *)data; |
| 49 | //printf("this is the message: %s\n", hello->message); |
| 50 | snprintf(message, 30, "this is the %s\n", hello->message); |
| 51 | } |
| 52 | |
| 53 | |
| 54 | #define HELLO_LENGTH 100 |
| 55 | |
| 56 | static void *register_thread_main(void *data) |
| 57 | { |
| 58 | int i, j = 0; |
| 59 | struct hello_trace_struct hello[HELLO_LENGTH]; |
| 60 | |
| 61 | for (i = 0; i < HELLO_LENGTH; i++) { |
| 62 | hello[i].message = malloc(6 * sizeof(char)); |
| 63 | hello[i].message[0] = 'a' + (i % 25); |
| 64 | memcpy(&hello[i].message[1], "ello", 5); |
| 65 | } |
| 66 | |
| 67 | for (i = 0; i < 1000; i++) { |
| 68 | while (!__register_tracepoint(hello_tptest, tptest_probe, |
| 69 | &hello[j % HELLO_LENGTH])) { |
| 70 | usleep(10); |
| 71 | j++; |
| 72 | } |
| 73 | printf("Registered all\n"); |
| 74 | while (!__unregister_tracepoint(hello_tptest, tptest_probe, |
| 75 | &hello[j % HELLO_LENGTH])) { |
| 76 | usleep(10); |
| 77 | j++; |
| 78 | } |
| 79 | printf("Unregistered all\n"); |
| 80 | } |
| 81 | return NULL; |
| 82 | } |
| 83 | |
| 84 | |
| 85 | int main(int argc, char **argv) |
| 86 | { |
| 87 | pthread_t register_thread; |
| 88 | int i; |
| 89 | |
| 90 | pthread_create(®ister_thread, NULL, register_thread_main, NULL); |
| 91 | for(i = 0; i < 1000000; i++) { |
| 92 | tracepoint(hello_tptest, i); |
| 93 | } |
| 94 | |
| 95 | return 0; |
| 96 | } |